WO1996035345A1

WO1996035345A1 - Method of manufacturing slide fastener

Info

Publication number: WO1996035345A1
Application number: PCT/JP1996/001221
Authority: WO
Inventors: Kazuki Kuse; Toyoo Morita; Osamu Fujii; Masanori Hirasawa
Original assignee: Ykk Corporation
Priority date: 1995-05-09
Filing date: 1996-05-09
Publication date: 1996-11-14
Also published as: DE69631015T2; JP3407889B2; CA2194472A1; HK1017570A1; EP0771538A1; EP0771538A4; CA2194472C; TW296977B; DE69631015D1; EP0771538B1

Abstract

A method of manufacturing a slide fastener, which can efficiently accomodate various demands for slide fasteners, reduces an amount of scrapped fastener chain required for slide fasteners of the same kind as much as possible, and facilitates production control. The method comprises feeding a lengthy continuous fastener chain (Ch) from a supply section (10) irrespective of the number of slide fasteners which are planned to be manufactured, measuring the fastener chain (Ch) for each length of individual slide fasteners (SF) being manufactured by means of a measuring roll (31) to form space portions (SP), and after formation of as many space portions (SP) as the number of slide fasteners, automatically changing over to a fastener chain (Ch) of another kind in the supply section (10) to sequentially and continuously manufacture slide fasteners (SF) of many kinds in desired numbers.

Description

Description Manufacturing method of slide fastener

The present invention relates to a method for efficiently producing a required number of slide fasteners of a desired type from various long fastener chains. Background art

Spaces of predetermined dimensions are formed sequentially for each product length of the slide fastener from a long continuous fastener chain that is continuously supplied, and then fastener components such as top stop, slider, and bottom stop are attached. A method of continuously manufacturing individual slide fasteners by cutting the fastener chain for each slide fastener is disclosed in, for example, Japanese Patent Application Laid-Open Nos. 3-96902 and 4-41092. It is disclosed in the gazette.

By the way, the color tone, product length, and form of slide fasteners requested by customers are tending to be reduced in number and variety, and in the line of continuous production of individual slide fasteners from long fastener chains. Needs to manage the quantity efficiently and with high reliability according to customer orders.

In order to cope with such a demand, according to the slide fastener manufacturing method disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 3-99602 and Japanese Patent Application Laid-Open No. Long fasteners required to produce the specified number of strands — Measure the entire length of the chain in advance, store it in the supply section, supply the length to the production line, and supply the required number of slide fasteners Has been produced.

However, orders from customers are not based on the total length of the fastener chain, but rather on the number of slide fasteners that have become products, and it is necessary to control the number of slide fasteners. is there.

In the conventional manufacturing method described above, first, the entire length of the fastener chain necessary for production is measured, and then the slide fastener produced from the fastener chain is measured. For each product length, a part of a series of mating fastener elements is removed with a predetermined dimension to form a space part in sequence, but in the next step of forming a space part to form a space part The length of the product of the slide fastener is measured again for the fastener chain to be sent in the same process.

On the other hand, according to the continuous manufacturing method of the slide fastener as described above, the length measurement conditions such as tension change in the fastener chain passing through multiple steps, and the length of the entire length of the fastener chain is measured. There is a gap between the length measurement of the slide fastener for each product length. In this case, even if the deviation between two adjacent slide fasteners is extremely small, if this slight deviation extends over the entire length of the continuously produced slide fastener, it becomes an extremely large deviation immediately. This has an effect on the production volume.

In other words, if the length of the fastener chain required in advance is measured and only that length is supplied to the production line, the length of the fastener chain corresponding to the number of slide fasteners to be produced is determined. In order to cope with this, the overall length of the fastener chain had to be set large in advance in anticipation of the shortage. If the total length of the fastener chain is set to be large in this manner, the fastener chain may be left behind with respect to the number of slide fasteners produced, and this excess fastener chain will be discarded. As a result, not only does productivity drop, but the surplus is not always constant, making production management very complicated.

SUMMARY OF THE INVENTION The present invention has been developed to solve the above-mentioned problems, and its specific purpose is to efficiently respond to various demands for slide fasteners, and furthermore, to provide a surplus fastener chain required for the same kind of slide fasteners. Another object of the present invention is to provide a method for manufacturing a slide fastener that can eliminate production as much as possible and facilitate production control. Disclosure of the invention

In order to achieve the above-mentioned object, the present invention forms a space portion for each of the opening lengths of slide fasteners of a continuous fastener chain sequentially supplied from a fastener chain supply portion, and then sequentially forms the slide fastener components. Attachment, slide fastener In the method of cutting individual products and manufacturing individual slide fasteners continuously, The continuous fastener chain sequentially supplied is repeatedly measured for each product length of the slide fastener preset by the length measuring means installed in the step of forming the space portion, and corresponds to the same product length. A fastener chain having a length is sequentially supplied to the space portion forming step. After the space portions corresponding to the predetermined number of slide fasteners are sequentially formed in the space portion forming step, the fasteners are sequentially supplied based on a command from the control section. Cutting the chain, and after the completion of the cutting, automatically switching to the supply of the next continuous fastener chain based on the chain cutting t command of the control unit. The main configuration is a manufacturing method of a slide fastener characterized by the above.

In addition, the present invention automatically switches to the supply of another continuous fastener chain of a different type to be manufactured next time, and then connects the supply end of the same continuous fastener chain to the supply end of the previous continuous fastener chain. Automatically connecting the cutting end with the cutting end, and further cutting the fastener chain based on the instruction of the control unit, the distance between the fastener chain supply unit and the space forming unit being manufactured. The length of the slide fastener is longer than the product length of the slide fastener, and it is cut off at the end of the space formation immediately before the final space formation, and the distance force between the fastener chain supply unit and the space formation unit << If the length of the slide fastener is shorter than the product length, cutting may be included at the end of the final space formation.

That is, according to the present invention, the continuous fasteners to be manufactured are provided from a fastener chain supply unit having a plurality of long continuous fastener chains independently of the number of slide fasteners manufactured. In the space forming step, the product length of the slide fastener is measured to form a space, and a space corresponding to the number of the slide fasteners is formed. The unit automatically switches to another type of fastener chain, and sequentially manufactures a desired number of slide fasteners of each type.

For this reason, as in the past, the entire length of the fastener chain corresponding to the number of slide fasteners to be manufactured in advance is measured, the fastener chain is stored in the supply unit, and when the fastener chain is supplied. Necessary compared to the case where the space is formed while measuring the length of each slide fastener separately in the space formation process The required number of slide fasteners can be manufactured using the minimum number of fastener chains, and the fastener chain supply unit automatically replaces the next time the fastener chain is manufactured. Will be able to respond immediately to the demands of the process, significantly improving productivity.

Further, the cutting of the fastener chain based on the command of the control unit is performed when the distance between the fastener-chain supply unit and the space forming unit is longer than the product length of the manufactured slide fastener, and Cut at the end of forming the space before forming the space part one time, and the distance between the fastener chain supply part and the space forming part is smaller than the product length of the slide fastener to be manufactured. If it is too short, cutting it at the end of the final space formation will minimize discarded fastener steps. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an overall perspective view showing an outline of an example of a manufacturing process of a slide fastener according to the present invention, and FIG. 2 is a control block diagram of the manufacturing process. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, typical embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall schematic diagram showing an example of an it process for manufacturing a slide fastener of the present invention.

According to the present embodiment, the fastener chain supply device 10 is unitized to form the chain exchange unit of the present invention. And, in this embodiment, the fastener chain supply device 10 has substantially the same structure as the tape supply device disclosed in Japanese Patent Application Laid-Open No. Hei 4-144689. Therefore, detailed description of the structure of the fastener chain supply device 10 in the present embodiment is omitted, and the operation procedure will be mainly described.

The fastener chain supply device 10 according to the present embodiment also has a chain 11 of continuous fastener chains C a to C n of different colors wound on a plurality of reels as a chain cassette 12 on the table 11. A plurality of support brackets are attached in parallel to the standing support bracket 13. Each chain cassette is placed on the table 11. The guide rolls 13a are provided to guide the continuous fastener chains Ca to Cn supplied by the switches 12a to 12n to the chain outlet path 14. Further, a pair of upper and lower plate-like lead-out members 15 for guiding while holding the upper T® of each of the fastener chains C a to C n is provided at the front of each of the chain lead-out paths 14 of the table 11. It extends horizontally along Road 14.

The table 11 is exchangeably installed on a slide table 11a, and the slide table 11a is a pair of guide rails 16 extending in the parallel direction of the chain cassettes 12a to l2n. And slidable along the guide rail 16. As shown in FIG. 2, the slide table 11a is rotated by a ball screw 17 which is controlled and rotated via a control drive device such as a servomotor based on a command from the control device CP. Reciprocates along guide rail 16. The control device CP selects a desired chain cassette 12 h from the plurality of chain cassettes 12 a to 12 n arranged on the table 11 and guides the slide table 11 a. The plate-shaped lead-out member 15 that guides the fastener chain Ch with a desired chain force set 12 h is moved along the rail 16 so as to face the chain processing path CL.

At the tip of the pair of upper and lower plate-shaped lead-out members 15, recesses 15 a where the fastener tape surfaces of the fastener chain C are exposed are formed on both left and right sides except for the tip, and The members 15 have the same shape. Press-contact feed rolls 17 are disposed above and below the concave portion 15a, and the press-contact feed rolls 17 are actuating devices such as a cylinder (not shown) based on a command from the control device CP. In addition, a rotary drive device capable of normal and reverse points, such as a motor and a motor, enables up-and-down control operation and control rotation, and a circumferentially continuous groove 173 is formed at the center of the peripheral surface. I have. When the desired chain cassette 12h is switched to the desired chain cassette 12h as described above in response to the switching instruction of the chain cassettes 12a to 12n from the controller CP, the upper and lower press-contact feeders 17 move in the approaching direction, Press the fasteners exposed from the recesses from above and below to clamp the fastener chain Ch from above and below. At this time, the connecting portion 15b between the left and right concave portions 15a of the plate-shaped lead-out member 15 is accommodated in the groove portion 17a formed in the press-contact feed roll 17. Here, the press-contact feed roll 17 is rotated a predetermined number of times. By rotating the number of turns, the desired length of the zipper chain Ch is sent out. In the present invention, in order to manufacture the planned number of slide fasteners, for example, while sequentially transferring the red continuous fastener chain Ch, the space forming device 30 reduces the planned number of slide fasteners SF of the same type by the space forming device 30. The corresponding space SP is formed.

When a predetermined number of space portions SP are formed, a command is issued from the control portion CP to the chain exchange unit 10, and the red fastener chain Ch supplied so far is cut off. After cutting, a command is issued again from the control unit CP to the chain exchange unit 10, and the cut red continuous fastener chain Ch is wound again on the chain cassette 1 2h, and the slide table 1 1 a moves, and a chain cassette 12n with another color, for example, a blue continuous fastener chain Cn is located in front of the fastener chain travel path, supplies a blue continuous fastener chain Cn, and is cut. It is connected to the cut end of the previous red continuous fastener chain Ch which has been made, and is sent to the space forming device 30.

At this time, in the red continuous fastener chain Ch formed with a predetermined number of space portions SP, the length from the space forming device 30 to the chain exchange unit 10 is wasted, and the force that will be discarded later When the length of each manufactured slide fastener is L and the length of the discarded disc is L ', the length L of the slide fastener is the distance between the space forming device 30 and the chain exchange unit 10 If the length is shorter than L ', that is, if L and L', the control unit CP issues a command to the chain exchange unit 10 before the number of spaces to be formed one before the planned production number, and the fastener chain After cutting Ch and connecting it with another blue continuous fastener chain Cn, the last space for the number to be produced is formed. The incorporation of such a program is effective because the length of the fastener chain to be destroyed can be reduced significantly. Also, when the length L of the slide fastener is longer than the distance L ′ between the space forming device 30 and the chain exchange unit 10, that is, when L> L ′, the space formation of the planned production number has been completed. Later, a command is immediately issued to the chain exchange unit 10 to discard the excess red fastener chain Ch of length L '.

The above control is performed between the space forming device 30 and the chain exchange unit 10. Since the distance L 'is always constant, the length L of the different type of slide fastener to be manufactured is input to the control device CP in advance, and the distance L is compared with the length L' to form a space. The operation setting of the device 30 should be changed.

In the present embodiment, when the continuous fastener chain Ch is cut, a signal is sent from the control device CP to a rotation driving device (not shown) of the press-contact feed roll 17, and the press-contact feed roll 1 7 reverses the predetermined number of rotations, returns the fastener chain Ch held between the rolls in the direction opposite to the sending direction, and cuts the cut ends of the fastener chain Ch into upper and lower plate-like lead-out members 15. Retract to the tip. After the retraction is completed, the upper and lower press-contact feed rolls 17 move in the separating direction to release the press-contact of the fastener tape.

Next, as described above, the slide table 11a is moved, and a plate for guiding, for example, a blue continuous fastener chain Cn wound on a chain cassette 12h corresponding to a slide fastener to be manufactured next time. The shape lead-out member 15 is made to face the chain processing path CL. Here, the upper and lower press-contact feed rolls 17 move in the approaching direction again, and press-contact the fastener tape surfaces exposed from the concave portions 15a of the plate-shaped lead-out member 15 from above and below to clamp the fastener chain Cn. Next, the upper press-contact feed roll 17 is rotated in the forward direction, and the zipper chain Cn is fed from the tip of the plate-shaped lead-out member 15 to a zipper-chain automatic splicing device 20 of the next process described later. The amount of movement of the fastener chain Cn in the chain machining path CL is set in advance, and the amount of movement of the continuous fastener chain Cn is determined by the number of rotations of the press-contact feed roll. I have.

After the end of the predetermined feeding, the upper and lower pressure contact feed rolls 17 are moved in the separating direction based on a command from the control device CP to release the pressure contact on the fastener tape surface. The sent continuous fastener chain Cn is sent to the first chain ripper 21 of the automatic chain joining apparatus 20, and the end of the fastener chain Cn is gripped and fixed. The chain automatic splicing device 20 in this embodiment is a movable first chain ripper that supports and guides one surface of the chain running surface along a chain processing path CL and reciprocates a predetermined distance. 21 and a second chaining lipper 22 fixedly provided at a predetermined position on the chain running path. The configuration of the first and second chain grippers 21 and 22 is basically the same except that one is movable along the chain path CL and the other is fixed. Have the same configuration. That is, the first chain ripper 21 repeats the contact / separation operation along the traveling path of the chain C toward the second chain ripper 22 based on a command from the control device CP. This contact / separation operation is performed, for example, by a cylinder (not shown), p¾.

The first chain gripper 21 includes a movable gripping member 2 la and a fixed gripping member 21 b, and the movable gripping member 21 a is illustrated in a direction orthogonal to the chain processing path CL toward the fixed gripping member 21 b. It can be advanced and retracted by a driving device such as a solid cylinder. Further, a step is formed on the upper surfaces of the movable gripping member 21a and the fixed gripping member 21b so as to face each other, and the movable gripping member 21a moves forward and comes into contact with the fixed gripping member 22. At this time, the combined element row of the fastener chain C located on the upper surface of the first chain ripper is sandwiched from both side surfaces between the step portions.

Further, the first chain gripper 21 can be reciprocated along the chain travel path by a driving device such as a cylinder (not shown) based on a command from the control device CP. While holding the zipper, the new fastener chain Cn is moved toward the second chain gripper 22 fixedly provided at a predetermined interval downstream of the chain feed direction. The second chain gripper 22 includes a movable gripping member 22 a and a fixed gripping member 22 b in the same manner as the first chain gripper 21, and the movable gripping member 22 a of the second chain gripper 22 is fixed. It advances toward the gripping member 22b, and grips and fixes the combined element row at the cut end of the fastener chain Ch supplied previously from the left and right.

According to the present embodiment, the tip of the new fastener chain Cn which has been replaced as described above and held by the first chain ripper 21 is cut by the first cutting blade 26a, and the cutting thereof is performed. The end is matched with the end face of the first chain gripper 21. In addition, the cut end of the previous fastener chain Ch that has been cut earlier is transported by a transport roll described later in the feed direction of the fastener chain until it is aligned with the end face of the second chain gripper 22. Then, as described above, the combined element row is gripped and fixed from the side by the second chaining rib 122. In this manner, the ends of the fastener chains Ch and Cn gripped and fixed by the first chain gripper 21 and the second chain gripper 22 are connected to the first chain gripper 21 as described above. By moving the chain chain 2 toward the chain ripper 22, when the first and second chain ribs 21 and 22 come into contact with each other, the ends of the zipper chains Ch and C n are connected to each other. Matched.

Next, the chain end connecting device 20a for connecting the ends of the butted fastener chains Ch and Cn is operated. The chain end connecting device 20a is provided above a position where the first chain gripper 21 stops when the ends of the fastener chains Ch and Cn come into contact with each other. As shown in FIG. 1, the chain end connecting device 20a in this embodiment includes a sticking member 2 of a tape-shaped adhesive film 23 having a metal surface and a film cutter 25. The adhesive film sticking member 24 is moved up and down by a cylinder (not shown), and is composed of an adhesive film roll 24 a and a film sticking roll 24 b. The film is placed in front of the film sticking roll 24 b. A cutting device 25 is provided, and a moving means (not shown) is operated by a command from the control device CP to move the adhesive film attaching member 24 and the film cutting device 25 to the chain processing path CL. A predetermined stroke is reciprocated along. The blade end of the film cutter 25 is located slightly above the lower end of the sticking roll 2b.

The adhesive member 24 of the tape-like adhesive film 23 is attached to a film attaching roll 24 by a driving device such as a cylinder (not shown). The fastener chain C n on the first chain ripper 21 is applied. Is pressed down, and the end of the adhesive film 23 is attached. The sticking member 24 moves in the feed direction along the traveling path of the fastener chain C n, and the film sticking roll 24 a is a force that sticks the adhesive film 23 on the upper surface of the fastener chain C n. Then, the first chain ripper 21 moves from the first chain ripper 21 to the fastener chain Ch of the second chain ripper 22, and the butted fastener chains C n and Ch are connected by the adhesive film 23. The adhesive film 23 is cut by the film cutter 25 when the adhesive member 24 is raised.

Here, the first chain lip 21 and the second chain ripper 22 have their respective movable gripping members 21a, 22a separated from the fixed gripping members 21b, 22b. One By moving the fastener element in the direction, the gripping of the fastener element is released, and the connected fastener tines C n and Ch are released. Next, in response to an instruction from the control device CP, the first chain ripper 21 moves away from the second chain ripper 22 and returns to the original position. In the connected fastener chain C, the transport roll 32 arranged downstream of the space forming device 30 in the chain feed direction is rotated Igfj by a driving device such as a motor (not shown) to form a space of a predetermined length. Transferred to device 30.

The cutting means 26 of the fastener chain C disposed between the first chain ripper 21 and the second chain gripper 22 is provided with an IKS means (not shown) in a direction orthogonal to the chain processing path CL. The first and second cutting blades 26a and 26b made possible by the fastener chain 1 are arranged side by side along the tune processing path CL.

The continuous fastener chains C a to C n wound around the chain cassettes 12 a to 12 n are connected with a stapler at the cut ends when cutting a defective portion or the like. If the ^ portion of the stapler is detected by a detecting means (not shown) before the stapled portion of Cn reaches the cutting means 26, a command is issued from the control device CP in response to the detection signal. Then, the cutting means 26 moves to the cutting position of the continuous fastener chain C a to C n, simultaneously cuts both sides of the connecting portion by the stapler, cuts off the connecting portion, and then performs the same operation as described above. The chain feed direction of the _c space forming device 30 which connects the cut ends of the fastener chains C a to C n again by 2 3 and conveys it to the space forming device 30 which is the next process On the upstream side, a length measuring roll 31 is disposed in close proximity to the space forming device 30. In the present invention, the length measuring roll 31 is one of the constituent members having important significance in relation to the above-described chain exchange unit 10. That is, the formation of the space portion in the present invention is determined based on the length measurement signal issued from the length measurement roll 31. For this reason, the length measuring roll 31 is provided with a rotation speed detecting means such as an encoder, for example, and the rotation speed of the length measuring hole 31 is constantly detected, and a detection signal is sent to the control unit CP. The control unit CP receives the detection signal of the rotation speed, compares it with a preset rotation speed, and compares the same. When the rotation speed is reached, a rotation stop signal of the length measuring roll 31 is sent to a drive device (not shown) of the transport roll 32 to stop the transport roll 32, and an operation signal is sent to the space forming device 30. To remove a part of the elementary row of the fusenette chain C to form a space SP.

The control device CP counts the number of times each time the rotation stop signal or the space formation operation signal is sent, and determines a predetermined number corresponding to the number of slide fasteners or the number obtained by subtracting one from the number of slide fasteners produced. When the number of times has been reached, an operation signal is continuously transmitted to the first and second chain ripper 21, 22, an operating portion such as a cylinder (not shown) of the chain cutting means 26 in accordance with the above-described operation procedure. Cut fastener chain C.

When the space is formed in this way, then, for example, slide fasteners such as iiT fastener mounting device 40, continuous fastener chain C cutting device 50, slider passing device 60, upper fastener mounting device 70, etc. Slide fasteners of a desired type having a predetermined length are continuously manufactured through the apparatus. In FIG. 1, 41 is a material for lower stoppers, 42 is a supply device for lower stoppers, which cuts a desired material for lower stoppers and automatically supplies the material to the lower stopper mounting device 40, 6 1 is a slider supply device capable of selectively and automatically supplying various types of sliders, 6 2 is a slider guide section, 6 3 is a slider holder, and 6 4 is a chain transport gripper. Known devices can be used as the devices applied to the above-described slide fastener component mounting process and the like. In the present embodiment, the devices disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 3-99602 are used. Therefore, the description of the specific configuration and operation will be left to the description in the publication.

As can be understood from the above description, in this embodiment, the operation timing, order, and the like of each operation member are all performed by the control device CP. Figure 2 shows the block diagram.

In the above embodiment, the manufacture of the slide fastener having the normal structure of the non-separable type has been described. However, the present invention can naturally be applied to the separable type slide fastener having the separable bottom stop. In this case, an auxiliary tape (not shown) is attached between the space forming device 30 and the slider passing device 60 in place of the lower stopper attaching device 50. Installation, a reinforcing part opening device, and a separable bottom end fitting mounting device. As described above, the present invention can be variously modified without departing from the spirit thereof. Product available

As is apparent from the above description, the present invention supplies a long chain of fasteners from the supply unit irrespective of the number of slide fasteners to be manufactured and supplies each slide fastener for manufacturing the fastener chain. After a space is formed by measuring the length of each slide, and a space corresponding to the number of slide fasteners is formed, the supply unit is automatically switched to another type of fastener chain, and various types of slides are created. In order to manufacture the desired number of fasteners sequentially and continuously, as in the past, the entire length of the fastener chain corresponding to the number of slide fasteners previously prepared is measured and individually prepared, and the space forming process is performed. Compared to the case where the space is formed while measuring the length of each slide fastener manufactured again in In addition to being able to respond quickly to the demand for a large variety of products and to reduce the number of slides, a predetermined number of slides are required using the minimum number of fastener chains, without having to measure the total length of the fastener in advance. It is now possible to manufacture fumasuna, which is extremely large and contributes to improving productivity.

Further, in the present invention, the cutting of the fastener chain based on the command of the control unit is performed by comparing the distance between the fastener chain supply unit and the space forming unit with the product length of the slide fastener manufactured. When the length is long, it is cut off at the end of the space formation just before the last space formation, and the distance between the fastener chain supply unit and the space formation unit is the product length of the slide fastener manufactured. When it is shorter than the above, when cutting is performed at the end of the formation of the final space, the portion of the fastener chain to be discarded can be minimized, and the productivity is further improved.

Claims

The scope of the claims

(1) After forming a space part for each product length of the slide fastener of the continuous fastener chain sequentially supplied from the supply part of the fastener chain, the slide fastener component parts are sequentially mounted, and the slide fastener is mounted. In the method of continuously manufacturing individual slide fasteners by cutting for each product of

The length of the continuous fastener chain sequentially supplied is measured for each slide fastener product length set in advance by length measuring means installed in the form of the space portion, and the length is equivalent to the product length. Supplying the length of the fastener chain sequentially to the space part form;

After sequentially forming the space portions corresponding to a predetermined number of slide fasteners in the space portion forming step, cutting off the fastener chain based on a command from a control unit;

After the completion of the cutting, automatically switching to the next continuous fastener chain supply based on the chain cutting instruction of the control unit;

And a method for producing a slide fastener.

(2) After automatically switching to the supply of another continuous fastener chain of a different type to be manufactured next time, the supply end of the same continuous fastener chain and the cut end of the previous continuous fastener chain 2. The method for manufacturing a slide fastener according to claim 1, comprising automatically connecting the fasteners.

(3) cutting the fastener tune based on the instruction of the control unit,

When the distance between the fastener chain supply section and the space forming section is longer than the product length of the slide fastener to be manufactured, it is cut off at the end of the space formation immediately before the last round of the slide section formation. ,

When the distance between the fastener chain supply unit and the space forming unit is shorter than the product length of the manufactured slide fastener, L is cut at the end of the final space unit formation. The method for producing a slide fastener according to claim 1, comprising: