CN117702295A - Funnel and preparation method of core body thereof - Google Patents

Abstract

The application discloses a funnel and a preparation method of a core body of the funnel. And connecting the two workpieces to enable the contact planes corresponding to the workpieces to be in sealing fit, and surrounding the concave surfaces corresponding to the workpieces into slits. And processing a contour surface on each workpiece by taking the slit as a reference to obtain an intermediate structure, wherein the contour surface, the contact plane and the concave surface are enclosed to form the intermediate structure, and the two connected intermediate structures form a core body. The processing cost of the concave surface and the contact plane is far lower than that of a long hole or a long seam, and a corresponding processing cutter is not required to be customized, so that the preparation cost of the core body and the funnel is effectively reduced. The flatness of the concave surface and the contact plane can be ensured, so that the flatness and straightness of the core body and the slit which are obtained by surrounding are good. The quality of the silk bundle formed by passing through the slit is good, and the spinning efficiency is improved. The problems that the preparation cost of the core body is high, and the quality of the obtained core body is not good enough to influence the spinning efficiency are solved to a certain extent.

Description

Funnel and preparation method of its core

Technical field

The present application belongs to the technical field of wet spinning funnels, and particularly relates to the preparation method of funnels and their cores.

Background technique

The spinning machine is the equipment required for wet spinning. Some spinning machines need to use a funnel to form the tow. The funnel includes a bath plate and a core body. Both the bath plate and the core body have hollow structures in the middle. The tow and the pressure water pass through the central slit with a slope in the bath plate and enter the slit in the center of the core body. The tow and the pressure water flow out from the slit together, and the tow is formed.

In the existing technology, the core body is an integrally formed structure, the slits are deep and narrow, and the surface accuracy of the slits is required to be high. When preparing the core body, it is necessary to use a tool with a large length-to-diameter ratio to machine a slit on the workpiece. On the one hand, using tools with a large aspect ratio requires customization, which will increase the cost of preparing the core. On the other hand, using tools with a large aspect ratio makes it difficult to ensure the flatness and straightness of the slit. It affects the quality of the obtained core and affects the textile efficiency.

Contents of the invention

This application aims to solve, at least to a certain extent, the problems of high core preparation costs and insufficient quality of the obtained core that affects textile efficiency. To this end, this application provides a method for preparing a funnel and its core.

The embodiment of the present application provides a method for preparing a core body, which is used to prepare the core body of a funnel. The core body is provided with a slit penetrating the core body; the preparation method includes:

A concave surface and a contact plane that are in contact with each other are processed on the workpiece. The ratio of the width to the height of the concave surface is 10-50. The concave surface penetrates the workpiece along the width direction of the concave surface. Two of the The contact planes are respectively distributed on both sides of the concave surface along the length direction of the concave surface;

Connect the two workpieces so that the corresponding contact planes of the workpieces are sealed and fitted, and the corresponding concave surfaces of the workpieces surround the slit;

Using the slit as a reference, a contour surface is processed on each workpiece to obtain an intermediate structure. The contour surface, the contact plane and the concave surface form the intermediate structure, and the two connected The intermediate structure forms the core.

In some embodiments provided by this application, the "processing of a concave surface and a contact plane that are in contact with each other on the workpiece" includes:

Milling the workpiece to process the recessed surface;

The workpiece is surface ground to create the contact plane.

In some embodiments provided by this application, the processing reference surface of the recessed surface is the same as the processing reference surface of the contact plane.

In some embodiments provided by this application, the "connecting two workpieces so that the corresponding contact planes of the workpieces are in sealing fit, and the corresponding concave surfaces of the workpieces enclose the slit" includes :

Using the concave surface as the reference surface, spaced connecting holes and pin holes are processed in the workpiece;

Fasteners are respectively passed through the connecting holes of the two workpieces to connect the two workpieces, and the corresponding recessed surfaces of the workpieces surround the slits.

In some embodiments provided by this application, the fastener includes a threaded column and a connecting pin, and there is a hard connection between the threaded column and the workpiece.

In some embodiments provided by this application, the profile surface includes a curved surface and a transition surface. Along the length direction, the curved surface is connected to the two contact planes. Along the width direction, the concave surface is The two ends are connected to the curved surface through two transition surfaces respectively; the "using the slit as a reference, processing a contour surface on each workpiece to obtain an intermediate structure" includes:

Using the slit as a reference, the curved surface and the transition surface are sequentially processed on the workpiece.

In some embodiments provided by this application, the "based on the slit, sequentially processing the curved surface and the transition surface on the workpiece" includes:

Using the slit as a reference, the workpiece is processed by surface grinding to process the curved surface and the transition surface.

This application provides a funnel that includes:

The bath tray is provided with a central slit and a guide surface. The two ends of the central slit are the inlet end and the outflow end respectively. The guide surface surrounds the center slit and is connected to the inlet end;

Core body, the core body includes two relatively connected intermediate structures, a slit is formed between the two connected intermediate structures, the slit is connected to the outflow end, and the outflow end is connected to the outflow end. A high-pressure water channel is formed between the slits.

The intermediate structure includes a recessed surface, two contact planes and a contour surface. The ratio of the width and height of the recessed surface is 10-50. The recessed surface runs through the intermediate structure along the width direction of the recessed surface. The contact planes are respectively distributed on both sides of the concave surface along the length direction of the concave surface, and the contour surface, the contact plane and the concave surface enclose to form the intermediate structure,

The contact planes of the two connected intermediate structures are used for sealing and fitting, and the concave surfaces of the two connected intermediate structures are used to enclose the slit.

In some embodiments provided by this application, the guide surface is an annular curved surface surrounding the central slit, and the slope of the annular curved surface decreases from the center of the annular curved surface toward the surroundings.

In some embodiments provided by this application, the high-pressure water channel is an annular channel surrounding the central slit and the slit, and the cross-section of the annular channel is two parallel inverted cones.

The embodiments of the present application have at least the following beneficial effects:

When machining the core of the funnel with the penetrating slit, contacting concave surfaces and contact planes are machined on the workpiece. Connect the two workpieces so that the corresponding contact planes of the workpieces are sealed and fitted, and the corresponding concave surfaces of the workpieces form a slit. Using the slit as a benchmark, a contour surface is processed on each workpiece to obtain an intermediate structure. The contour surface, contact plane and concave surface form an intermediate structure, and the two connected intermediate structures form a core. The processing cost of the recessed surface and the contact plane is much lower than that of long holes or long slits, and the ratio of the width and height of the recessed surface is 10-50. When the ratio of the width to height of the recessed surface is within the above range, the corresponding slit will be formed. When using traditional one-piece machining, a custom tool is required for processing, and the overall preparation cost is high. Converting slits into concave surfaces eliminates the need to customize corresponding processing tools, effectively reducing the preparation costs of the core and funnel. The straightness of the recessed surface and the contact plane can be ensured, so that the resulting core body and the slit have better straightness and straightness. The quality of the filament bundle formed through the slit is better, which improves the textile efficiency. To a certain extent, it solves the problems of high core preparation cost and insufficient core quality that affects textile efficiency.

Description of the drawings

Figure 1 is a schematic structural diagram of a funnel provided by this application.

Figure 2 is a flow chart of a core preparation method provided by this application.

Figure 3 is a side view of a core body provided by this application.

Figure 4 is a top view of the intermediate structure provided by the present application.

Explanation of reference signs: 1. Bath tray; 11. Center seam; 12. Guide surface; 2. Core body; 21. Intermediate structure; 211. Recessed surface; 212. Contact plane; 213. Contour surface; 2131. Transition surface; 2132. Curved surface; 214. Connection hole; 215. Pin hole; 22. Slit; 3. High-pressure water channel.

Detailed ways

In order to enable those skilled in the technical field to which this application belongs to understand this application more clearly, the technical solutions of this application will be described in detail through specific embodiments in conjunction with the accompanying drawings.

Figure 1 is a schematic structural diagram of a funnel provided by the present application. Referring to Figure 1, it can be seen that the embodiment of the present application provides a core preparation method, which is used to prepare the core of the funnel. The core is provided with a core that penetrates the core. slit. Figure 2 is a flow chart of a core preparation method provided by this application. Referring to Figure 2, the core preparation method includes:

S101: Process a concave surface and a contact plane that are in contact with each other on the workpiece. The ratio of the width to height of the concave surface is 10-50. The concave surface runs through the workpiece along the width direction of the concave surface, and the two contact planes are along the length direction of the concave surface. , respectively distributed on both sides of the concave surface.

S102: Connect two workpieces so that the corresponding contact planes of the workpieces are sealed and fitted, and the corresponding concave surfaces of the workpieces form a slit.

S103: Using the slit as a benchmark, process a contour surface on each workpiece to obtain an intermediate structure. The contour surface, contact plane and concave surface form an intermediate structure, and the two connected intermediate structures form a core.

When machining the core of the funnel with the penetrating slit, contacting concave surfaces and contact planes are machined on the workpiece. Connect the two workpieces so that the corresponding contact planes of the workpieces are sealed and fitted, and the corresponding concave surfaces of the workpieces form a slit. Using the slit as a benchmark, a contour surface is processed on each workpiece to obtain an intermediate structure. The contour surface, contact plane and concave surface form an intermediate structure, and the two connected intermediate structures form a core. The processing cost of the recessed surface and the contact plane is much lower than that of long holes or long slits, and the ratio of the width and height of the recessed surface is 10-50. When the ratio of the width to height of the recessed surface is within the above range, the corresponding slit will be formed. When using traditional one-piece machining, a custom tool is required for processing, and the overall preparation cost is high. Converting slits into concave surfaces eliminates the need to customize corresponding processing tools, effectively reducing the preparation costs of the core and funnel. The straightness of the recessed surface and the contact plane can be ensured, so that the resulting core body and the slit have better straightness and straightness. The quality of the filament bundle formed through the slit is better, which improves the textile efficiency. To a certain extent, it solves the problems of high core preparation cost and insufficient core quality that affects textile efficiency.

And with the above structure, when one of the intermediate structures forming the core is greatly worn, other intermediate structures can be used to replace the worn intermediate structure without scrapping the entire core. It is more energy-saving and environmentally friendly, and has lower maintenance costs.

It should be noted that the ratio of the width to the height of the recessed surface is 10-50, and the ratio of the width to the height of the recessed surface is 10:1-50:1. The same as the ratio of the depth and width of the slit below, which will not be explained below.

In some embodiments provided by this application, the width of the slit on the prepared core body can be about 0.5 mm, and the depth of the slit can be between 200 and 4000 mm. The general effect is better. It should be noted that the length of the recessed surface corresponds to the length of the slit, the width of the recessed surface corresponds to the depth of the slit, and the height of the recessed surface is half of the width of the slit. The ratio of the depth of the slit to the width of the slit is 5:1-25:1.

In some embodiments provided by this application, in step S101, "processing a contacting concave surface and a contact plane on the workpiece" includes:

Mill the workpiece to create concave surfaces. Surface grind the workpiece to create a contact plane.

Concave surface milling has faster processing speed and better quality, which improves the quality of the slit formed by the concave surface. The contact plane is prepared by surface grinding, and the processing quality of the contact plane can be effectively improved.

In some embodiments provided by this application, the processing datum plane of the recessed surface is the same as the processing datum plane of the contact plane. The relative position accuracy of the recessed surface and the contact plane can be improved.

In some embodiments provided by this application, the processing reference planes of the recessed surface and the contact plane may also be different. This application does not limit this.

In some embodiments provided by this application, before processing the recessed surface and the contact plane, a processing datum can be set on the workpiece, and the processing datum can be used as a processing datum for the recessed surface and the contact plane. quality improvement. The machining datum can be a machining datum plane or a machining datum line. This application does not limit this.

In some embodiments provided by this application, the contact plane can also be processed by line processing, and then the recessed surface can be processed. This application does not limit this.

In some embodiments provided by this application, in S102, "connect two workpieces so that the corresponding contact planes of the workpieces are sealed and fit, and the corresponding concave surfaces of the workpieces form a slit", including:

Using the concave surface as the reference surface, spaced connecting holes and pin holes are machined in the workpiece.

Fasteners are passed through the connecting holes of the two workpieces respectively to connect the two workpieces, and the corresponding concave surfaces of the workpieces form a slit.

The connecting holes and pin holes can be used with fasteners for positioning and tight connection. When the connecting hole and the pin hole are connected correspondingly, the recessed surface forms a slit. Convenient to disassemble and assemble the core body.

In some embodiments provided by this application, the fastener includes a threaded column and a connecting pin, and there is a hard connection between the threaded column and the workpiece. It can improve the connection strength between intermediate structures and reduce the possibility of slits leaking from between contact planes.

In some embodiments provided by this application, the connecting holes and pin holes can be distributed on both sides of the recessed surface in the length direction. It is easy to install and has good strength.

Figure 3 is a side view of a core body provided by the present application. Referring to Figure 3, the intermediate structure 21 of the core body 2 is provided with a connecting hole 214 and a pin hole 215.

In some embodiments provided by this application, the two intermediate structures can also be connected and fixed by welding. This application does not limit this.

In some embodiments provided by this application, the contour surface includes a curved surface and a transition surface. Along the length direction, the curved surface is connected to two contact planes. Along the width direction, the two ends of the recessed surface are connected to the curved surface through two transition surfaces respectively. In step SS103, "using the slit as a reference, process a contour surface on each workpiece to obtain an intermediate structure" includes: using the slit as a reference, processing curved surfaces and transition surfaces in sequence on the workpiece.

After ensuring the size and accuracy of the slit, the curved surface and transition surface are processed based on the slit. The relative position accuracy between the contour surface of the intermediate structure and the slit can be guaranteed. Facilitates the connection and installation between the core body and related structures.

Using the slit as a benchmark, the workpiece can be processed based on the center of the slit or the concave surface, which is not limited in this application.

In some embodiments provided in this application, "using the slit as a benchmark to process curved surfaces and transition surfaces on the workpiece in sequence" includes: using the slit as a benchmark, processing the workpiece through surface grinding to process curved surfaces and transition surfaces. It can improve the surface accuracy of curved surfaces and transition surfaces.

In some embodiments provided by the present application, a workpiece with a rough-machined curved surface can be provided, and then a concave surface and a contact plane are processed on the workpiece based on the rough-machined curved surface. After connecting the two workpieces and forming the slit, the rough surface can then be finished to obtain the curved surface. This processing method can ensure the relative position accuracy of the concave surface, contact plane and curved surface as much as possible, and during the processing process, the thickness accuracy between the concave surface and the curved surface can be gradually corrected and improved.

This application provides a funnel. Refer to Figure 1. The funnel includes a bath plate 1 and a core 2.

The bath tray 1 is provided with a central slit 11 and a guide surface 12. The two ends of the central slit 11 are respectively the inlet end and the outflow end. The guide surface 12 surrounds the central slit 11 and is connected to the inlet end.

Core body 2. The core body 2 includes two relatively connected intermediate structures 21. A slit 22 is formed between the two connected intermediate structures 21. The slit 22 is connected with the outflow end, and a slit 22 is formed between the outflow end and the slit 22. There are high pressure water channels 3.

The intermediate structure 21 includes a recessed surface 211, two contact planes 212 and a contour surface 213. The ratio of the width and height of the recessed surface 211 is 10-50. The recessed surface 211 runs through the intermediate structure 21 along the width direction of the recessed surface 211. Planes 212 are respectively distributed on both sides of the recessed surface 211 along the length direction of the recessed surface 211 . The contour surface 213 , the contact plane 212 and the recessed surface 211 form an intermediate structure 21 . The contact planes 212 of the two connected intermediate structures 21 are used for sealing and fitting, and the concave surfaces 211 of the two connected intermediate structures 21 are used to enclose the slit 22 .

The technical effects corresponding to the structure of the core body 2 can be referred to the above and will not be described again here. Regarding the funnel itself, normal pressure water flows into the central slit 11 of the bath tray 1 from the guide surface 12 of the bath tray 1 . A high-pressure water channel 3 is formed between the outflow end of the central slit 11 and the slit 22, and high-pressure water can enter the slit 22 of the core 2 itself from the high-pressure water channel 3. The high-speed flowing high-pressure water flow drives the normal-pressure water flowing down from the top of the bath tray 1 to flow together quickly, and the two water flows are mixed together to form an artificial siphon effect. When items such as tows enter from above and mix with the water flow, they will be pulled away. Through the adjustment of water pressure and water flow, the tows will have different stretching effects. The control of the tow can be improved to improve the quality of the resulting tow.

In some embodiments provided by this application, the guide surface 12 is an annular curved surface 2132 surrounding the central slit 11 , and the slope of the annular curved surface 2132 decreases from the center of the annular curved surface 2132 toward the surroundings. It can improve the control of normal pressure water flow and flow rate and increase versatility.

In some embodiments provided by this application, the high-pressure water channel 3 is an annular channel surrounding the central slit 11 and the slit 22, and the cross-section of the annular channel is two parallel inverted cones. Improve the control of high-pressure water velocity and flow and increase versatility.

In some embodiments provided by this application, the width of the slit 22 on the prepared core 2 can be about 0.5 mm, and the depth of the slit 22 can be between 200 and 4000 mm. The general effect is better. This application does not limit this.

Figure 4 is a top view of the intermediate structure provided by this application. Referring to Figures 1, 3, and 4, in some embodiments provided by this application, the contour surface 213 may include the transition surface 2131 and the curved surface 2132 as mentioned above. The intermediate structure 21 may also include the connecting holes 214 and pin holes 215 as mentioned above. The connecting hole 214 and the pin hole 215 are used for fast connection with the fixing member. This application does not limit this.

It should be noted that the funnel itself can be connected to the textile machine required for application, and both the bath plate 1 and the core body 2 can be connected to the frame of the textile machine, so that the relative positions of the bath plate 1 and the core body 2 can be fixed. The specific structure of the core body 2 can be referred to Figures 3 and 4. This application does not limit this.

It should be noted that the parallel or perpendicularity involved in this application is allowed to have a deviation of 0 to 5° relative to the concepts of absolute parallelism or absolute perpendicularity in geometry. This application does not limit this.

Although the preferred embodiments of the present application have been described, those skilled in the art will be able to make additional changes and modifications to these embodiments once the basic inventive concepts are understood. Therefore, it is intended that the appended claims be construed to include the preferred embodiments and all changes and modifications that fall within the scope of this application.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (10)

1. The preparation method of the core body is characterized by being applied to the preparation of the core body of the funnel, wherein the core body is provided with a slit penetrating through the core body; the preparation method comprises the following steps:

processing a contact concave surface and a contact plane on a workpiece, wherein the ratio of the width to the height of the concave surface is 10-50, the concave surface penetrates through the workpiece along the width direction of the concave surface, and the two contact planes are respectively distributed on two sides of the concave surface along the length direction of the concave surface;

connecting two workpieces to enable contact planes corresponding to the workpieces to be in sealing fit, and surrounding the concave surfaces corresponding to the workpieces into the slits;

and processing a contour surface on each workpiece by taking the slit as a reference to obtain an intermediate structure, wherein the contour surface, the contact plane and the concave surface are enclosed to form the intermediate structure, and two connected intermediate structures form the core body.

2. The method according to claim 1, wherein the step of forming the contact concave surface and the contact plane surface on the workpiece includes:

milling the workpiece to process the concave surface;

and grinding the workpiece in a plane mode to process the contact plane.

3. The method of manufacturing according to claim 1, wherein the machining reference surface of the concave surface is the same as the machining reference surface of the contact plane.

4. A method according to any one of claims 1 to 3, wherein the step of connecting the two workpieces so that the contact planes corresponding to the workpieces are in sealing contact with each other, and the concave surfaces corresponding to the workpieces define the slit, comprises:

processing connecting holes and pin holes at intervals on the workpiece by taking the concave surface as a reference surface;

the fastener piece respectively passes through the connecting holes of the two workpieces to connect the two workpieces, and the concave surfaces corresponding to the workpieces enclose the slit.

5. The method of manufacturing according to claim 4, wherein the fastener comprises a threaded post and a connecting pin, the threaded post being hard-wired to the workpiece.

6. A production method according to any one of claims 1 to 3, wherein the profile surface includes a curved surface and a transition surface, the curved surface is connected to two of the contact planes along the length direction, and both ends of the concave surface are connected to the curved surface along the width direction through two of the transition surfaces, respectively; the "processing a contour surface on each of the workpieces with the slit as a reference to obtain an intermediate structure" includes:

and sequentially processing the curved surface and the transition surface on the workpiece by taking the slit as a reference.

7. The method according to claim 6, wherein the step of processing the curved surface and the transition surface in the work piece in this order based on the slit comprises:

and processing the workpiece by using the slit as a reference through a plane mill so as to process the curved surface and the transition surface.

8. A funnel, comprising:

the bath tray is provided with a central seam and a guide surface, two ends of the central seam are respectively an inlet end and an outlet end, and the guide surface surrounds the central seam and is connected with the inlet end;

the core body comprises two oppositely connected intermediate structures, a slit is formed between the two connected intermediate structures, the slit is communicated with the outflow end, a high-pressure water channel is formed between the outflow end and the slit,

the intermediate structure comprises a concave surface, two contact planes and a contour surface, wherein the ratio of the width to the height of the concave surface is 10-50, the concave surface penetrates through the intermediate structure along the width direction of the concave surface, the two contact planes are respectively distributed on two sides of the concave surface along the length direction of the concave surface, the contour surface, the contact planes and the concave surface are enclosed to form the intermediate structure,

the contact planes of the two connected intermediate structures are used for sealing and jointing, and the concave surfaces of the two connected intermediate structures are used for enclosing the slit.

9. The hopper of claim 8 wherein said guide surface is an annular curved surface surrounding said central slit and the slope of said annular curved surface decreases from the center of said annular curved surface to the periphery.

10. The funnel of claim 8, wherein the high pressure water passage surrounds the annular passage of the central slit and the slit, and the annular passage has a cross section of two side-by-side inverted cone shapes.