WO2008009167A1

WO2008009167A1 - Cuniform extruding mold, supporting body and pattern die

Info

Publication number: WO2008009167A1
Application number: PCT/CN2006/001617
Authority: WO
Inventors: Zhanbin Che
Original assignee: Zhanbin Che
Priority date: 2006-07-10
Filing date: 2006-07-10
Publication date: 2008-01-24

Abstract

A cuniform extruding mold for forming of loosed biomaterial includes a mold body, a molding cavity is provided on the mold body. The said mold body consists of a supporting body on which a hole is provided. The said molding cavity is formed in the pattern die, and the pattern die is inserted and secured in the hole of the supporting body. Compared with prior art, the extruding mold of the present invention can reduce the making cost and use-cost of the mold, and energy consumption for processing the mold.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding apparatus for a loosely reproducible bio-shield material, and specifically includes a molding die and a support body and a molding sleeve for molding the mold . The present invention can form a loose biomass material without using any chemical binder, and can be used as a feed or a combustible material. BACKGROUND OF THE INVENTION It is well known that renewable biomass materials, such as crop straws, herbs, shrubs, or solid wastes produced in wood processing, are an inexhaustible resource. The most traditional use of this resource is as a burning material and feed. Due to the large size, inconvenient transportation and other defects, the original use of biomass materials has long been abandoned. In order to solve the above defects of biomass materials, the use of modern processing technology, people to form biomass materials into particles, thereby solving the problem of large volume and inconvenient transportation and storage. In order to solve the above drawbacks, a processing method in which biomass material is pulverized and then solidified into pellets has been invented, and the volume of the biomass material is greatly reduced.

At present, the process of solidification molding of commonly used biomass materials is: biomass material → crushing → drying → extrusion molding, and this method of solidification molding is first applied to the processing of feed.

Among the above-mentioned conventional molding processes, extrusion molding is the core of the curing technology. The first extrusion molding machine used was a screw extruder, but it has been proved that the screw extrusion processing has low production efficiency, the production cost is relatively high, and the wear of the screw extruder is also quite serious. It is difficult to apply to the solidification molding process of a large number of biomass materials.

Nowadays, the most commonly used particle extrusion molding machine comprises a ring die, and a die hole is distributed on the annular wall of the ring die. When the ring die rotates, the rotation of the pressure roller adjacent thereto is driven, when the material enters the ring die. Thereafter, as the ring mold rotates into the die hole of the ring die, it is extruded from the other end of the die hole under the pressing of the press roll. Most of these pellet forming machines are used for the processing of feeds, and because of the plurality of die holes, the processing efficiency is greatly improved.

Another commonly used particle forming machine includes a flat plate template on which a die hole is distributed, and a press roller is arranged on the die plate. When the template is rotated, the press roller is rotated to rotate when the material enters. The pressure roller and the die plate are pressed into the die hole by the pressing roller, and are extruded from the other end of the die hole as the pressing roller is continuously pressed.

The above two kinds of particle forming machines adopt the same extrusion method, that is, a wedge-shaped space is formed between the two pressing surfaces, and the wedge-shaped space is continuously reduced due to the relative movement of the two pressing faces, and the wedge-shaped pressing space is continuously reduced. The material inside is continuously squeezed into the die hole in the mold and extruded from the other end of the die hole. The method in which the inventors completely differ from the extrusion and the spiral extrusion is temporarily defined as a wedge extrusion method. This wedge extrusion method was first applied to the processing of pellet feed. In general, the raw material of the grain feed is usually some herbal materials, such as soft biomass materials such as grass and straw.

With the development of biomass combustion material utilization, this wedge extrusion method has been applied to the processing of combustion materials. However, because the raw materials of the burning materials are more than the herb materials, they are more hard woody biomass materials, such as shrubs and sawdust. Relative to these harder bioshield materials, the wear of the molding cavity of the extrusion molding machine is very serious. Since the molding cavity of the existing flat die or ring die is evenly distributed on the fixture body, when the individual cavity or part of the cavity is worn and cannot work normally, the force of the entire die will be affected, and the overall acceleration is accelerated. The wear of the mold reduces the molding efficiency of the overall mold and even prevents it from working properly. Since the molding cavity is integrally formed on the mold body, when the cavity is worn, the entire mold will be scrapped, and a new mold must be replaced. Therefore, the cost of the molding die is high, and at the same time, the biomass material cannot be lowered. Processing costs.

On the other hand, in the aforementioned conventional processing method, it is generally considered that the longer the distance at which the material is extruded during the extrusion molding process, the greater the density of the molding, and the easier it is to form. Therefore, in the pellet forming machines, the die hole of the die has the same cross-sectional shape as the formed pellet, and the depth of the die hole is 40 mm or more, and the depth of the formed hole is usually 60 to 120 mm, and the material passes through the length. However, during the extrusion process, the pressing force is not transmitted to the forming hole. After nearly ten years of research and experiments, the applicant has demonstrated that the force transmission distance of biomass materials is very short, usually less than 10 mm, which is 3 ~ 5 mm. Therefore, during the forming process, the force conduction is greater than 10 mm. , and then continue to exert force on the density of its molding is not very good. Such a long shaped hole in the prior art does not compress the material as much as is thought, and the molding density of the material in the shaped hole does not change much. However, the long forming hole requires a large pressing force to extrude the material, and in the process of continuing the extrusion, it is often necessary to overcome the great friction between the hole wall and the material, which is the existing particle. One of the main reasons for the rapid wear and low life of the mold of the molding machine; it is also the main reason for the large energy consumption of the existing molding machine. 006 001617 In summary, all the existing particle forming machines using the wedge extrusion method cannot solve the problem of the wear of the mold, and the curing processing cost of the biomass material is greatly improved. SUMMARY OF THE INVENTION An object of the present invention is to provide a wedge-shaped extrusion molding die for a loose biomass moldable material, a support body thereof and a molding sleeve, which can effectively reduce the manufacturing cost and the use cost of the mold, thereby reducing the solidification molding of the biomass material. Manufacturing costs.

It is also an object of the present invention to provide a wedge-shaped extrusion molding die for a loose biomass moldable material, a support body thereof and a molding sleeve to reduce the energy consumption of solidification molding of the biomass material.

It is also an object of the present invention to provide a wedge-shaped extrusion molding die for a loose biomass moldable material, a support body thereof and a molding sleeve, which improve the mechanical properties of the biomass-forming particles, so that the formed particles have excellent connections. Strength and moisture resistance make it easy to store when used as a burning material, reducing its storage costs.

The object of the present invention is achieved by a wedge extrusion molding die for molding a loose biomass material, the molding die comprising a mold body, a molding cavity distributed on the mold body, the mold The body is formed by a support body having a through hole. The molding cavity is respectively formed on the molding sleeve, and the molding sleeve is embedded in the through hole of the support body.

A support body for a wedge-shaped extrusion molding die, wherein the support body is provided with at least one pressing surface, and a through hole of the support body is disposed on the pressing surface of the support body.

A molding sleeve for a wedge-shaped extrusion molding die and a support body thereof, wherein the molding sleeve body is provided with at least one molding cavity; the shape of the molding sleeve corresponds to the shape of the through hole of the support body, and is embedded in the support The through hole of the body is fixed inside.

In the molding die of the present invention, since the molding sleeve is provided on the support body, the molding cavity is formed on the molding sleeve, and when the molding cavity cannot be used due to wear, the molding cavity can be arranged from the support body. After being disassembled, the new molding cavity sleeve is replaced, the entire mold is discarded, and the support body can be reused, thereby greatly reducing the use cost of the molding die. Further, the molded sleeve of the present invention can also be processed by a method of precision casting and integral molding, which can greatly reduce the manufacturing cost of the mold and improve the processing precision of the mold.

The casing with the cavity in the invention may also be composed of a smooth wear-resistant material such as ceramic, Simply reducing its manufacturing costs can also greatly reduce the energy consumption during extrusion.

In the present invention, according to the short force transmission distance of the biomass material, the molding cavity is composed only of a shrinking extrusion cavity having a depth of not more than 10 mm, and the extrusion distance of the material forming is greatly shortened, thereby maximizing The ground reduces its energy consumption in extrusion.

The molding cavity of the molding die of the invention is composed of a circular molding die and a reaming groove which are parallel to two axes, so that the structure is simple and the processing is convenient, and the processing of the molding cavity can be avoided by using the special-shaped processing method. , can reduce the manufacturing cost of the molding die.

The extrusion molding die of the present invention can be applied to feed processing as well as to biomass combustion materials. In the processing of feed, the cavity can be composed of only one extrusion chamber that is contracted, or a small molding section is connected at the outlet end of the molding to minimize the energy consumption required, and also greatly The wear of the mold is reduced, thereby reducing the cost of using the mold. Further, in the present invention, the structure in which the support body and the molding sleeve are separated is used, and even if the molding cavity on the casing is damaged by wear, only some of the casings are replaced, and the entire mold is discarded.

Further, since the molding die of the present invention can omit the molding section or compress the molding section to a minimum, the sheet material is laminated into the extrusion cavity of the mold and then extruded, and then directly extruded through the molding outlet, thereby The length of the material passing through the forming mold is greatly reduced, so as to adapt to the small force transmission distance of the loose biomass material, and the extrusion of the material in the forming mold is reduced under the premise of ensuring the molding quality. Friction length and time, therefore, can greatly reduce the extrusion resistance of the material, only need a small positive pressure to press out the material, thereby reducing the energy consumption of the material through the molding cavity, P competes for low bio-shield material products Processing costs. Experiments have shown that the energy consumption of the molded product using the molding die of the present invention is reduced by more than 20% compared with the consumption of the conventional molding die. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a molding die of the present invention.

Figure 2 is a schematic view showing the structure of another molding die of the present invention.

Fig. 3 is a schematic exploded view showing another molding die of the present invention.

Figure 4 - Figure 7: A partially enlarged view of Figure 1.

Fig. 8 is a schematic view showing the structure in which the molded sleeve is embedded in the outer side of the ring mold.

Figure 9 and Figure 10 are schematic views of the flat mold structure of the present invention. 11 to FIG. 16: are schematic structural views of a partially formed cavity in the present invention.

17 to FIG. 20 are partial structural views showing the molding sleeve embedded in the support body according to the present invention.

21 to 26 are schematic views showing a partial positioning manner of the molding sleeve and the support body in the present invention. Figure 27 - Figure 30 is a schematic view showing the structure of another molding cavity in the present invention.

31, 32: is a schematic structural view of another molding cavity in the present invention. DETAILED DESCRIPTION OF THE INVENTION Example 1

As shown in FIG. 1 to FIG. 10 , a wedge-shaped extrusion molding die of a loose biomass moldable material according to the present invention, the molding die includes a mold body 1 , and a molding cavity 2 is distributed on the mold body 1 . As shown in the figure, the molding cavity 2 is respectively formed on a molding sleeve 3, and the mold body 1 is composed of a support body 10 having a through hole 11; the molding sleeve 3 is embedded and fixed to the support body. 10 inside the through hole 11.

In the molding die of the present invention, the molding sleeve 3 is disposed on the support body 10 of the mold body 1, and the molding cavity 2 is disposed on the molding sleeve 3, and when the molding cavity 2 is worn and can no longer be used, The molding sleeve 3 can be removed from the through hole 11 of the support body 10, and the new molding sleeve 3 can be replaced in the through hole 11 to continue the use, so that the mold support body 10 can be reused, and the extrusion molding die can be improved. The life, thereby reducing the cost of the overall forming mold and the cost of extrusion processing.

Further, as shown in Figs. 1 to 3, the support body 10 of the wedge-shaped extrusion molding die of the present invention comprises at least one pressing surface on which the through holes 11 into which the molded sleeve 3 can be inserted are distributed. Such a structural design overcomes the deficiencies of the prior art and causes the mold body (i.e., the support body 10) to be changed from a wearable member to a durable member. In the extrusion molding process, after the molding cavity 2 is worn, the molding die 3 provided with the cavity 2 is removed from the support body 10, and the new casing 3 is replaced, so that the entire mold can be continuously used. In this embodiment, as shown in FIG. 1 and FIG. 4-8, the support body 10 is annular, and the molding sleeve 3 is embedded in the through hole 11 of the support body 10 to form a ring mold; The inner wall surface of the annular support body 10 is embedded in the through hole 11 (as shown in FIGS. 1, 4 to 7), and the inner wall surface constitutes the pressing surface; of course, the molded sleeve 3 may also be from the annular support body 10. The outer wall surface is embedded in the through hole 11 (as shown in Fig. 8), and the outer wall surface constitutes the pressing surface. As shown in FIG. 2, 3, 9, and 10, as another embodiment of the embodiment, the support body 10 may also have a flat shape. The molded sleeve 3 is embedded in the through hole 11 of the support body 10 to form a flat template, and the surface of the molded sleeve 3 is a pressing surface.

As shown in FIG. 1 to 3, the molding sleeve 3 of the present invention is a member that can be assembled with the through hole 11 of the support body 10. The molding sleeve 3 is formed with a molding cavity 2, which is formed. The shape of the molded sleeve 3 corresponds to the shape of the through hole 11 of the support body 10. In the embodiment, the molded sleeve 3 can be a cylinder (shown in FIGS. 1, 17, and 18), and the molded sleeve 3 is fixedly embedded. In the through hole 11; as another embodiment of the embodiment, the forming sleeve 3 may also be a frustum body having a self-locking angle (as shown in FIGS. 2 and 3), and the forming sleeve 3 The self-locking is formed by embedding into the corresponding through hole 11.

Since the support body 10 and the molding sleeve 3 of the wedge-shaped extrusion molding die of the present invention are separately processed and assembled to constitute the wedge-shaped extrusion molding die, the separate processing of each component is relatively easy, and the components can be improved. The precision of the manufacturing process to further improve the accuracy of the overall molding die after assembly. The molding sleeve 3 is embedded and fixed in the through hole 11 of the support body 10. Therefore, the wedge extrusion molding die of the present invention is simple and convenient to assemble.

Further, the molding sleeve 3 of the present invention can be processed by a precision casting method; the molding cavity 2 on the molding sleeve 3 can also be integrally molded with the molding sleeve 3 by a precision casting method to reduce the manufacturing of the molding die. cost. Further, the molded sleeve 3 of the present invention can be made of a ceramic material in addition to a commonly used mold material support.

According to the above structure, the present invention can not only improve the service life of the entire extrusion die, but also reduce the manufacturing cost and the use cost of the mold, and can make the processing of the mold simple and convenient, and the assembly thereof is also very easy. Example 2

The structure and principle of the embodiment are basically the same as those of the embodiment 1. When the feed processing is performed using the wedge extrusion molding die of the present invention, since the material used is soft, the molding cavity 2 of the molding sleeve 3 can be used. The molding cavity 2 which is usually used, as shown in Figs. 29 and 30, is constituted by a through hole 25 which is provided with a chamfer 26 at the inlet end of the through hole 25.

Further, as shown in Figs. 5, 27 and 28, as another embodiment of the present embodiment, the molding cavity 2 may be constituted by a pressing chamber 20 which is contracted. The inventors have conducted a large number of tests to prove that the material can reach a sufficient material forming density in the shrinking extrusion cavity 20 having a depth of not more than 10 mm, and is directly extruded from the molding outlet 22 to obtain a desired shape. From the forming outlet 22 006 001617 is no longer has any friction between the extrusion cavity and the molding cavity 2, minimizing the energy consumption required, and greatly reducing the wear of the mold, thereby increasing the cost of the mold. In addition, in the embodiment, the structure in which the mold body 1 is separated from the molding cavity 2 is used, and even if the cavity 2 is damaged by abrasion, only some of the molding sleeves 3 are replaced, thereby avoiding the replacement of the entire mold, thereby improving the overall mold. Service life. Example 3

This embodiment is basically the same as the structure and principle of Embodiment 1. The wedge extrusion molding die of the present invention can be applied to the processing of biomass burning materials. Since the molding materials used for molding the combustion materials are hard, before the molding materials enter the molding cavity, First, a shearing force is applied in a wedge-shaped extrusion cavity. Under the shearing force, the granular material in the wedge-shaped extrusion cavity is crushed and stretched into a sheet shape, and the volume of the wedge-shaped extrusion cavity is constant. The sheet material is laminated into the molding cavity of the molding die; in order to further material which has been milled and stretched into a sheet shape in the wedge extrusion chamber, it is further formed in the molding cavity of the molding die. Extrusion, the density between each layer is continuously increased, and a part of the particles are deformed and then enter the gap between the sheet-like particles to form a state of up-and-down engagement to form a molded product superior to other products, and thus, in this embodiment As shown in FIGS. 1, 4, 6, 9, and 12, the molding cavity 2 of the molding die is designed such that the molding outlet 22 is offsetly disposed in the extrusion cavity having a tapered cross section. The side of the bottom portion of the bottom portion 20 forms a long smooth slope between the material inlet end 21 and the forming outlet 22. In this embodiment, the depth b of the extrusion chamber 20 whose cross-section is tapered is less than or equal to 10 mm. The inlet end 21 on the side corresponding to the forming outlet 22 is extruded into the squeezing cavity 20 which is tapered in cross section, and then extruded from the forming outlet 22 to give the molded product a specific structural model.

It has been proved that after the material is extruded through the die 20, sufficient density can be achieved, and no forming section is required at the end of the forming outlet 22. Therefore, the forming section of the present invention omits the forming section, and the forming sleeve 3 The thickness can be equal to the depth of the tapered extrusion chamber 20, and after the material enters the extrusion cavity 20 of the mold, it is directly extruded through the molding outlet 22, thereby greatly reducing the length of the material passing through the molding die. It adapts to the characteristics that the loose conductive biomass material has a small force transmission distance, and reduces the extrusion friction length and time of the material in the forming mold under the premise of ensuring the molding quality, thereby greatly reducing the material Extrusion resistance, only a small positive pressure can be used to extrude the material, thereby reducing the energy consumption of the material through the molding cavity and reducing the processing cost of the biomass material product. Example 4

The basic principle and structure of the embodiment are the same as those of the third embodiment. In the embodiment, as shown in FIG. 11 12, the cross-sectional shape of the tapered extrusion cavity 20 of the molding cavity 2 disposed on the molding sleeve 3 is The circular shape, the forming outlet 22 is also circular, and the axis 221 of the forming outlet 22 is parallel and spaced apart from the axis 201 of the section of the extrusion chamber 20, the spacing a of which is less than or equal to the radius of the circular forming outlet 22.

The above structural design is advantageous for the forming cavity 2 to be processed by machining. When the forming cavity 2 is processed, a through hole can be vertically processed on the forming sleeve 3 by using a milling cutter (or other cutting tool). Forming the outlet 22, replacing a reaming cutter with a suitable angle of inclination and offsetting the machining axis to one side, and controlling the appropriate offset (the offset is not greater than the radius of the forming outlet 22) A hole is formed to form the tapered extrusion chamber 20. Since the molding cavity 2 of the present invention is processed without using a special-shaped machining method, it can be completed only by milling or drilling and with the control axis offset, thereby simplifying the processing of the molding cavity 2 and facilitating the processing. Therefore, the processing cost of the mold can be greatly reduced.

In the present embodiment, as shown in FIG. 13 14 , after the axis 201 of the section of the tapered extrusion cavity 20 in the molding cavity 2 is offset from the axis 221 of the molding die 22, the extrusion cavity 20 is tapered to the side edge. Tangent to the edge of the molding die 22, that is, the side constitutes a vertical side wall 222, in such a manner that the material entering the molding cavity 2 is pressed inward by the resistance of the vertical side wall 222 inwardly. The material does not overflow from the side, and the extrusion process is better. Of course, as shown in FIG. 1516, one side of the tapered extrusion chamber 20 may also be located outside or within the edge of the molding die 22 to constitute the molding cavity 2, in such a manner as to be the same as described above. Effect.

Further, the tapered extrusion cavity 20 may have a rectangular, elliptical or other asymmetrical shape, and the shape of the forming outlet 22 may be the same as or different from the shape of the tapered extrusion cavity 20. As shown in FIG. 31, 32, the tapered extrusion cavity 20 of the molding cavity 2 has an irregular shape, and the shape of the molding outlet 22 is also an irregular shape. The molding cavity 2 of the above shapes, Both the casting method and the forming of the forming sleeve can be carried out.

In the present embodiment, as shown in FIG. 12 17 18, the height of the formed sleeve 3 with the molding cavity 2 is equal to the depth of the pressing cavity 20, and the corresponding mold body 1 is provided with a stepped hole. 11 , the forming sleeve 3 is embedded in the large hole section of the stepped hole 11; the upper surface of the forming sleeve 3 is flush with the upper surface of the support body 10 of the mold body 1 or slightly higher than the upper surface of the supporting body 10 (not shown) Show). Said The molded sleeve 3 of 01617 is evenly arranged on the support 10 of the mold body 1.

As shown in Fig. 20, when the molded sleeve 3 is a frustum body, its small end is embedded in the through hole 11 of the support body 10, and the upper surface of the molded sleeve 3 is flush or slightly higher than the upper surface of the support body 10.

Further, in this embodiment, since the molding cavity 2 is designed such that the molding outlet 21 is offsetly disposed on the side of the bottom portion of the extrusion chamber 20 whose cross-section is tapered, a ratio is formed between the material inlet end 21 and the molding outlet 22. On the long smooth slope, the material has to be extruded from the side of the smooth slope into the molding cavity 2 and then extruded from the forming outlet 22, so that the side with the smooth slope constitutes the material introduction side. The forming sleeve 3 is embedded on the support body 10 of the mold body 1. The support body 10 (such as the ring mold) has a certain rotation direction, and the material in the rotating ring mold is accurately introduced from the introduction side into the molding cavity. 2. It is necessary to position the support body 10 in which the molded sleeve 3 is fitted into the mold body 1. Therefore, in the present embodiment, the mold body 1 is provided with a positioning structure corresponding to the outer circumference of the molding sleeve 3, and the molding sleeve 3 is directionally embedded in the mold body 1.

As shown in FIG. 21 and FIG. 22, the outer peripheral surface of the forming sleeve 3 may be provided with a convex flange 31. The inner wall of the through hole 11 of the mold body 1 is provided with a corresponding concave groove 12, and the forming sleeve is formed. The flange 31 of the 3 is inserted along the recessed groove 12 in the body 1 to define the mounting position of the molded sleeve 3. As another embodiment of the embodiment, as shown in FIGS. 23 and 24, the outer peripheral surface of the forming sleeve 1 may be provided with a recessed groove 32, and the inner wall of the through hole 11 on the mold body 1 is provided corresponding thereto. The flange 13 of the molded sleeve 3 is inserted along the flange 13 of the body 1 to define the mounting position of the molded sleeve 3.

During extrusion molding, the material enters the molding cavity 2 from the introduction side, is extruded along the smooth slope toward the forming outlet 22, and is formed into a desired shape product through the forming outlet 22. Example 5

This embodiment is basically the same as the embodiment 4. As shown in Figs. 25 and 26, the positioning of the molded sleeve 3 can be as follows. The molding sleeve 3 is composed of two stepped cylinders 33 and 34 which are offset by two axes, and the mold body 1 is provided with a stepped through hole (not shown) corresponding to the molding preparation body 3, thereby forming a molding sleeve. The body 3 is directionally embedded in the through hole in the mold body 1 to form a positioning.

Of course, other methods can be used for positioning, for example, forming the formed sleeve 3 into a non-rotating body (such as a prism, an elliptical cylinder or other asymmetric polygonal cylinder), the through hole 11 on the mold body 1 and The shape of the molded sleeve 3 corresponds to the positioning structure (not shown). Or The forming sleeve 3 can be divided into two sections, at least one of which is formed into a non-rotating body (as shown in FIGS. 31 and 32), and the mold body 1 is provided with a section of through holes 11 corresponding to the forming sleeve 3 (non-rotating) The molding sleeve 3 is embedded in the hole of the section to define the mounting position of the molding sleeve 3. Example 6

This embodiment is the same as the structure and principle of the first embodiment, and the difference is that, as shown in FIGS. 6, 7, 8, 9, and 19, a flange 34 is disposed at the front end of the formed sleeve 3, and the formed sleeve 3 is evenly distributed. On the mold body 1, the flange 34 of the molded sleeve 3 is densely attached to the surface of the mold body.

In the molding die of the conventional ring mode or the flat mode extrusion molding machine, in addition to the wear of the molding cavity 2 during work, the pressing surface of the die body 1 (the surface in contact with the material) is often easily worn. The structure of the embodiment can overcome this drawback. During the forming and pressing process, the surface of the mold body 1 is protected by the flange 34, and the surface of the mold body 1 (i.e., the support body 10) is prevented from being worn to improve the mold. Overall service life. Example 7

This embodiment is basically the same as the foregoing embodiments, except that, as shown in FIG. 14, the end of the forming outlet 22 is provided with an enlarged section 23, and the enlarged area of the enlarged section 23 is larger than the area of the forming outlet 22. The enlarged section 23 may be a cylindrical enlarged section or a divergent enlarged section (illustrated as a tapered enlarged section).

Further, as shown in Fig. 16, a small section 24 may be formed at the end of the forming outlet 22 according to the actual extrusion molding, and the enlarged section 23 may be provided at the rear of the forming section 24.

In the above embodiment, each of the forming sleeves 3 is provided with a molding cavity 2. As another embodiment of the present invention, two or more molding cavities 2 (not shown) may be provided on the molding sleeve 3 in accordance with the actual needs of the extrusion molding process.

Claims

Claim

A wedge-shaped extrusion molding die for molding a loose biomass material, the molding die comprising a mold body, wherein a mold cavity is distributed on the mold body, wherein: the mold body is composed of The support body is provided with a through hole; the molding cavity is respectively formed on the molding sleeve, and the molding sleeve is embedded and fixed in the through hole of the support body.

2. A wedge extrusion molding die according to claim 1, wherein: the support body is annular, and the molding sleeve is embedded in the through hole of the support body to form a ring die.

The wedge extrusion molding die according to claim 1, wherein the support body has a flat plate shape, and the molding sleeve body is embedded in the through hole of the support body to form a planar template.

A wedge extrusion molding die according to claim 1, wherein the molding sleeve is a stepped cylinder, the small end of which is embedded in the through hole of the support.

5 . The wedge extrusion molding die according to claim 1 , wherein the molding sleeve body is a frustum body having a self-locking angle, and the small end is embedded in the through hole of the support body, and the molding sleeve body is formed. The upper surface is higher than the upper surface of the support.

6 . The wedge extrusion molding die according to claim 1 , wherein the molding sleeve body is a frustum body, and the small end is embedded in the through hole of the support body, and the upper surface of the molding sleeve body and the support body are formed. The upper surface is flush.

The wedge extrusion molding die according to claim 4, 5 or 6, wherein: the mold body is provided with a positioning structure corresponding to the outer circumference of the molding sleeve, and the molding sleeve is directionally embedded in the mold. On the body.

The wedge extrusion molding die according to claim 4, 5 or 6, wherein: the molding sleeve is formed into a non-rotating body, and the hole in the body of the body and the forming sleeve are Corresponding to the shape, the positioning structure is formed.

9. A wedge extrusion molding die according to claim 4, 5 or 6, wherein: said molding sleeve is divided into two sections, at least one of which is formed into a non-rotating body, and the mold body is provided There is a section of the hole corresponding to the forming sleeve, and the forming sleeve is embedded in the section of the hole to define the mounting position of the forming sleeve.

10. A wedge extrusion molding die according to claim 1, wherein: said molding sleeve is a cylinder, a prism, an elliptical cylinder or other asymmetrical polygonal cylinder.

The wedge extrusion molding die according to claim 7, wherein: the outer peripheral surface of the molding sleeve is provided with a convex flange, and the inner wall of the hole on the mold body is provided with corresponding The recessed groove, the flange of the molded sleeve is inserted along the recessed groove in the body to define the mounting position of the formed sleeve.

The wedge extrusion molding die according to claim 7, wherein: the outer peripheral surface of the molding sleeve is provided with a concave groove, and the inner wall of the hole on the mold body is provided with a flange corresponding thereto. The recessed groove of the molded sleeve is inserted along the flange on the body to define the mounting position of the formed sleeve.

The wedge extrusion molding die according to claim 7, wherein the molding sleeve is composed of two stepped cylinders whose axes are offset, and the mold body is provided with a corresponding shape of the molding sleeve. The stepped through holes are such that the molded sleeve is oriented to be inserted into the through holes in the mold body.

A wedge extrusion molding die according to claim 1, wherein: each of said molding sleeves is provided with at least one molding cavity.

A wedge extrusion molding die according to claim 1, wherein: said molding sleeve is evenly arranged on the mold body.

A wedge extrusion molding die according to claim 1, wherein: said molding sleeve is processed by a precision casting method.

17. A wedge extrusion molding die according to claim 16, wherein: the molding cavity on the molding sleeve is integrally formed with the molding sleeve by a precision casting method.

18. A wedge extrusion molding die according to claim 16, wherein: said molding cavity on said molding sleeve is machined.

19. A wedge extrusion die according to claim 1 wherein: said shaped sleeve is made of a ceramic material.

A support body for use in the wedge extrusion molding die according to claim 1, wherein the support body is provided with at least one pressing surface, wherein the pressing surface of the support body is distributed A through hole that is embedded in the molded sleeve.

The support body for a wedge-shaped extrusion molding die according to claim 20, wherein the support body has a ring shape, and the molding sleeve body is embedded in the through hole of the support body to form a ring die.

The support body for a wedge-shaped extrusion molding die according to claim 20, wherein the support body has a flat plate shape, and the molding sleeve body is embedded in the through hole of the support body to form a planar template.

The support body for a wedge extrusion molding die according to claim 20, wherein: The through hole in the support is a stepped column hole.

The support body for a wedge extrusion molding die according to claim 20, wherein: the support body is provided with at least one tapered hole having a self-locking angle, and the depth of the tapered hole is equal to or smaller than the height of the formed sleeve. .

The support for a wedge-shaped extrusion die according to claim 20, wherein the through hole of the support body is provided with a positioning structure corresponding to the outer circumference of the molding sleeve.

The support body for a wedge-shaped extrusion die according to claim 20, wherein the through hole of the support body is formed as a through hole having a non-rotational cross section corresponding to the molded sleeve.

The support body of the wedge extrusion molding die according to claim 26, wherein: the through hole of the support body is divided into two sections, and at least one section is a non-rotating section corresponding to the molding sleeve body. Through hole.

The support for a wedge extrusion die according to claim 20, wherein the through hole of the support has a circular, prismatic, elliptical or other asymmetrical polygonal cross section.

The support body of the wedge extrusion molding die according to claim 20, wherein: the inner peripheral surface of the through hole of the support body is provided with a protruding flange or groove along the longitudinal direction to form a molding sleeve. Body oriented embedded positioning structure.

30. A molding sleeve for use in a wedge extrusion molding die according to claims 1 and 20 and a support body thereof, wherein: the molding sleeve has at least one molding cavity; the molding sleeve The shape corresponds to the shape of the through hole of the support body, and is fixed in the through hole of the support body.

The molded sleeve according to claim 30, wherein the molded sleeve body is a stepped cylinder whose small end is embedded in the through hole of the support body.

The molding sleeve according to claim 30, wherein the molding sleeve is a frustum body having a self-locking angle, and the small end is embedded in the through hole of the support body, and the maximum diameter of the molding sleeve is larger than or It is equal to the diameter of the through hole at one end of the pressing surface of the support.

The molding sleeve according to claim 30, wherein the molding sleeve body is a frustum body having a shape corresponding to the through hole of the support body, and the large end diameter of the molding sleeve body and the tapered end of the support body Equal in diameter, embedded in the through hole of the support body and flush with the pressing surface of the support body.

The molded sleeve according to claim 30, wherein: the outer sleeve of the forming sleeve is provided with a positioning structure, and the forming sleeve is directionally embedded in the supporting body.

35. A molded sleeve for a wedge extrusion die according to claim 34, wherein: The molding sleeve can be formed into a non-rotating body and positioned after being embedded in the through hole of the support body.

36. The molded casing of claim 34 or 35, wherein: said formed casing is divided into two sections, at least one of which is formed into a non-rotating body.

37. The molded casing of claim 30, wherein: said formed casing is a cylindrical body, a prismatic body, an elliptical cylinder or other asymmetric polygonal cylinder.

38. The molded sleeve according to claim 30, wherein: the outer peripheral surface of the forming sleeve is provided with a protruding flange or groove along the axial direction to form a positioning of the forming sleeve embedded in the support body. structure.

39. The molding kit according to claim 30, wherein: the molding sleeve body is composed of two stepped cylinders whose axes are offset, and the mold body is provided with a stepped through hole corresponding to the molding sleeve body. Thereby, the molding sleeve is oriented to be inserted into the through hole on the mold body.

40. The molded casing of claim 30, wherein: each of said forming sleeves is provided with at least one forming cavity.

The molded casing according to claim 30, wherein: said molding sleeve is evenly arranged on the mold body.

42. The molded casing of claim 30, wherein: said formed casing is machined by a precision casting process.

43. The forming sleeve according to claim 3Q, wherein: the forming cavity on the forming sleeve is integrally formed with the forming sleeve by a precision casting method.

44. The molded casing of claim 30, wherein: the forming cavity on the forming sleeve is machined.

45. The molded casing of claim 30, wherein: said formed casing is made of a ceramic material.

The molding sleeve according to claim 30, wherein: the molding cavity is formed by an extrusion cavity whose material inlet end is tapered toward a cross section of the molding outlet end, and the bottom of the extrusion cavity is provided with the The forming outlet has a shape corresponding to the product section after the material is formed, and the material is extruded to a sufficient molding density in the tapered extrusion chamber to be extruded from the forming outlet.

47. The molding kit according to claim 46, wherein: the forming outlet of the bottom of the pressing chamber is offset from one side of the bottom of the pressing chamber, and the material is entered by a side corresponding to the forming outlet. The extrusion chamber whose cross section is tapered is pressed.

48. The molded casing of claim 46, wherein: a cross section on the forming sleeve The depth of the tapered extrusion chamber is less than or equal to 10 mm.

49. A molded casing according to claim 46, wherein: said forming cavity of said forming cavity is connectable with a section of forming corresponding to the forming outlet.

The forming sleeve according to claim 46, wherein: the forming outlet of the forming cavity is connectable with an enlarged section, and the enlarged section has an outlet area larger than the forming outlet area.

The molded casing according to claim 46, wherein the shape of the forming outlet corresponds to the cross-sectional shape of the pressing chamber.

52. The molded casing of claim 46, wherein: said extrusion cavity has a cross-sectional shape that is circular, rectangular, elliptical, or other asymmetrical shape.

The molding sleeve according to claim 46, wherein: the extrusion cavity has a circular cross-sectional shape, and the molding outlet is also circular, and the axis of the molding outlet is parallel to and spaced from the axis of the extrusion cavity section. The distance between the two axes is less than or equal to the radius of the circular shaped exit.

54. A molded sleeve according to claim 46, wherein: said formed sleeve has a height equal to the depth of the extrusion chamber.

55. A molded casing according to claim 46, wherein: said forming casing is provided with two or more forming cavities.

The molding sleeve according to claim 46, wherein: the molding cavity on the molding sleeve is integrally formed with the molding sleeve by a precision casting method.

57. The forming sleeve of claim 46, wherein: the forming cavity on the forming sleeve is machined.