KR20110108668A

KR20110108668A - Device of removing teeth of slide fastener

Info

Publication number: KR20110108668A
Application number: KR1020100028004A
Authority: KR
Inventors: 어문현
Original assignee: 어문현
Priority date: 2010-03-29
Filing date: 2010-03-29
Publication date: 2011-10-06

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide fastener tape cutter that can remove some of the teeth elements that are continuously formed to install stoppers, pins, and pin boxes in a slide fastener. In the cutting machine for removing the tooth at a constant pitch, the tape block is formed in which the tape is stably passed, and the lower block is formed in the center of the cutter hole, and the tape pushing mechanism for pressing down the tape passing through the tape seat; Lower die; An upper die having a guide hole into which the guide beam formed in the lower die is inserted and movable in a vertical direction with respect to the lower die by a driving unit; A cutter integrally fixed to the upper die; A center block having a connection rod installed to be movable in a vertical direction with respect to the upper die, a connection spring installed to act as a restoring force in a direction spaced from the upper die, and a cutter slit formed to penetrate the cutter; A preliminary tooth fixing part fixed to the upper die and installed to be exposed below the bottom surface of the center block to primarily fix the tape; And fixed to the center block and installed so as to be exposed below the bottom surface of the center block includes a post tooth fixing portion for applying a tension to the tape by pressing in the advancing direction of the tape while fixing the tape secondary.

Description

Device for removing teeth of slide fasteners {Device of removing teeth of slide fastener}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter for slide fastener tape, and more particularly to a slide fastener tape tooth capable of removing some of the teeth elements continuously formed so as to install a stopper, pin and pin box in the slide fastener. It's about the season.

In general, a slide fastener, called a zipper, is a type in which a slider is coupled to a tape that combines teeth formed along one edge having a predetermined length. Today, two slide fasteners are applied to various clothes, bags, or tents such as jumpers. It is widely used to connect fabrics to each other.

Accordingly, in order to mount the slider, a pin, a pin box, a stopper, or the like must be installed on the teeth. For this purpose, a cutting device for removing teeth of a certain length from a tape having teeth formed continuously is used.

As shown in FIG. 1, the cutting device includes a cutting device 200 for removing the teeth of the supplied tape 10 to a predetermined length, and the tape 10 is disposed before and after the cutting device 200. A guide removing part sensor for continuously checking the tooth removing part of the tape 10 disposed between the guide 100 and the feeding roller 500 and the cutting device 200 and the feeding roller 500. 400).

In addition, between the tooth cutter 200 and the tooth removing unit sensor 400, the tooth debris for removing the debris of the tooth removed by the tooth cutter 200 attached to the tape 10 (300) ) May be additionally installed.

Such a conventional cutting device detects the tooth removal portion from which the tooth portion is partially removed by the tooth cutter 200 by the tooth removing portion sensor 400 which follows a certain length from the tooth cutter 200 and then the tooth removing portion. Will determine the position of the tooth removal part.

That is, the pitch of the tooth removing unit is determined by the distance between the tooth cutter 200 and the tooth removing unit sensor 400.

In the slide fastener, the tooth should be started with only the predetermined one of the right side or the left side in order to engage the pin and the pin box. However, in the prior art, the tooth is removed by the distance between the tooth cutter 200 and the tooth removing sensor 400, not based on the shape of the tooth. Therefore, there is an inconvenience to check the tooth removal part with the naked eye at all times to check whether the first tooth of the starting position is located at the right side or the left side and correct it manually by mistake.

SUMMARY OF THE INVENTION An object of the present invention devised to solve the above problems is to provide a slide fastener tape cutter which can be cut at the same pitch so that a certain tooth can be arranged.

In the present invention for achieving the above object, in the cutting machine for removing the teeth of the tape for the slide fastener continuously supplied at a constant pitch, the tape seat through which the tape passes stably is formed and the cutter hole is formed in the center thereof A lower die including a lower block and a tape pushing mechanism for pushing down the tape passing through the tape seat; An upper die having a guide hole into which the guide beam formed in the lower die is inserted and movable in a vertical direction with respect to the lower die by a driving unit; A cutter integrally fixed to the upper die; A center block having a connection rod installed to be movable in a vertical direction with respect to the upper die, a connection spring installed to act as a restoring force in a direction spaced from the upper die, and a cutter slit formed to penetrate the cutter; A preliminary tooth fixing part fixed to the upper die and installed to be exposed below the bottom surface of the center block to primarily fix the tape; And a trailing edge fixing part fixed to the center block and installed to be exposed below the bottom surface of the center block to pressurize in the advancing direction of the tape while secondarily fixing the tape to provide tension to the tape. Crusher for fastener tape.

The tape pushing mechanism includes a pushing bar rotatably installed on a support joint integrally formed on the lower block, a handle extending along the support joint by a long pushing bar, and one end fixed to the handle and the other end of the lower die. It characterized in that it comprises a pushing spring fixed to the upper surface of the.

The preceding tooth fixing part may include a main bracket fixed to the upper die, a control plate fixed to the main bracket, a movable plate slidable in a moving direction of the tape with respect to the main bracket, and installed on the movable plate. It is characterized in that it comprises a leading tooth fixation arm which is pressed downward acting downward and the leading tooth fixing finger is formed to engage the tooth at the end.

The preceding tooth fixing finger may be detachable from the preceding tooth fixing arm.

In addition, the trailing teeth fixing part is installed so that a part of the mounting hole protrudes in the lower portion of the center block inclined with respect to the movement direction of the center block, and inserted into the installation hole by a finger spring disposed in the installation hole. It includes a possible trailing tooth fixing finger, characterized in that the end of the trailing tooth fixing finger is formed to be inclined in the advancing direction of the tape.

Through the present invention, the tooth can be cut so as to always have the same tooth position, can reduce the manual work for confirming the tooth removal portion, it is possible to lower the product manufacturing cost according to the reduction in manpower.

In addition, it is possible to cope with both the left and right slide fasteners only by replacing the tooth extension member, so that two types of slide fasteners can be manufactured with one tooth cutting machine.

1 is a schematic view of a cutting apparatus according to the prior art.
2 is a perspective view of a tooth cutter in accordance with an embodiment of the present invention.
3 is a perspective view of the lower die of the tooth cutter of FIG.
4 is a bottom view of the upper die of the tooth cutter of FIG.
5 is a perspective view of the tooth fixing part integrally coupled to the upper die of the tooth cutter of FIG.
6 is a schematic cross-sectional view of the tooth cutter of FIG. 2.
7 is a schematic cross-sectional view of the center block of the tooth cutter of FIG.
8 is a flowchart of a cutting process using the cutting machine of FIG. 2.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In adding reference numerals to components of the following drawings, it is determined that the same components have the same reference numerals as much as possible even if displayed on different drawings, and it is determined that they may unnecessarily obscure the subject matter of the present invention. Detailed descriptions of well-known functions and configurations will be omitted.

As shown in FIG. 2, the slide fastener tape cutter 200 according to the embodiment of the present invention includes an upper die 230 and a lower die 202.

The lower die 202 is fixed to a base or the like not shown. A lower block 206 is disposed on the lower die 202, and a guide beam 204 is installed around the lower block 206.

The lower block 206 is provided with a lower core 220 therein, a tape seat 222 is formed on the upper portion of the lower core 220 to move in a state in which the tape 10 is seated, the tape seat In the center of 222, a cutter hole 224 through which a cutter 242 to be described below penetrates is disposed. As shown in FIG. 6, the width of the cutter hole 224 is greater than the width of the cutter 242, such that the teeth 12 arranged around the cutter hole 224 may have the cutter 242. It is crushed while being rotated downward while being pushed by.

Therefore, in the prior art, the cutter separates from the tape while directly pushing the teeth through the cutter hole, so that the fibers of the portions where the teeth fall are damaged, but in the tooth cutter 200 according to the embodiment of the present invention, the teeth 12 Since it is crushed while rotating by the cutter 242, the fiber of the part from which a tooth fell is not damaged.

A tape pushing mechanism is installed to stably support the tape 10 moved to the tape seat 222. The tape pushing mechanism can apply various methods. Tape pushing mechanism according to an embodiment of the present invention, the pushing bars (212, 214) rotatably installed on the support joints (226, 228) of the lower block 202, and the pushing bars (212, 214) the support joints (226, 228) Handles 208 and 212 extending in the center and pushing springs 216 and 218 having one end fixed to the handles 208 and 212 and the other end fixed to the upper surface of the lower die 202.

As shown in FIGS. 2 and 3, the pushing bars 212 and 214 grip the tape 10 from above, so that the tape support protrusions reliably move together with the tape seat 222. 213,215 are formed.

Accordingly, by the upward restoring force of the pushing springs 212 and 214, the pushing bars 212 and 214 are pressed toward the tape seat 222, thereby supporting the tape 10. In addition, when the tape 10 should be installed in the cutting machine 200 for the first time, by pressing the handles 208 and 212, the pushing bars 212 and 214 are spaced apart from the tape seat 222, and the tape is spaced therebetween. (10) will be inserted.

The upper die 230 is integrally fixed to the operation arm 232 connected to the press device (not shown). The press apparatus may be made using a known technique such as a hydraulic cylinder or a cam mechanism.

A guide hole 234 is formed in the upper die 230, and the guide beam 204 of the lower die 202 is inserted into the guide hole 234. Therefore, when the upper die 230 moves up and down with respect to the lower die 202, it is possible to prevent the relative displacement in the remaining directions except for the vertical direction.

In addition, as illustrated in FIGS. 2 and 6, the center block 244 is fixed to the upper die 230 by a connection rod 238 and a connection spring 240.

The center block 244 is movable in the vertical direction with respect to the upper die 230 by the connecting rod 238. The top dead center of the center block 244 is determined by the maximum compression state of the connection spring 240 or the contact of the top surface of the center block 244 and the bottom surface of the center block fixing part 236. The bottom dead center of the center block 244 is determined by the head of the connection rod 238 contacting the installation groove inside the center block fixing part 236.

In addition, a cutter 242 is installed at the center block fixing part 236, and the cutter 242 passes through the cutter slit 246 formed at the center of the center block 244, and the center block 244. It is arranged not to protrude from the bottom surface of the.

The cutter 242 protrudes from the bottom surface of the center block 244 after the center block 244 abuts the lower block 206 and is inserted into the cutter hole 224.

In addition, the upper tooth 230, the first tooth fixing portion 250 for fixing the teeth 12 of the tape 10 is fixed integrally.

The preceding tooth fixing part 250 includes a main bracket 252 fixed to the upper die 230, a control plate 254 fixed to the main bracket 252, and the tape with respect to the main bracket 252. A movable plate 256 which is slidably movable in the traveling direction of 10, and a preceding tooth fixing finger 262 which is installed on the movable plate 256 and has a pressing force applied downward and engages with the tooth 12 at the end. Includes anterior tooth fixation arm 260 is formed.

One end of the main bracket 252 is fixed to the upper die 230, and the lower end thereof is positioned above the lower surface of the center block 244, so that the other components may be separated from the bottom dead center of the center block 244. Do not collide. The movable plate 256 also has a lower end located above the lower surface of the center block 244 so as not to collide with other components at the bottom dead center of the center block 244.

The movable plate 256 is coupled to the main bracket 252 so as to be slidable with each other using a trapezoidal inclined cross section. The movable plate 256 is fastened to the adjusting bolt 256 installed on the adjusting plate 254, and by the rotation of the adjusting bolt 256, the movable plate 256 with respect to the main bracket 252. It is possible to precisely move in the feeding direction of the tape 10.

The leading tooth fixing arm 260 is always receiving an elastic force in the downward direction by the unillustrated restoring spring installed inside the movable plate 256. In addition, the leading tooth fixing finger 262 has a protrusion as shown in FIG. 5 so as to be coupled to at least two teeth of one left and one right, preferably three or more teeth alternately left and right.

The anterior tooth fixing arm 260 is bent so that the anterior tooth fixing finger 262 faces downward, and the anterior tooth fixing finger 262 is detachably disposed with respect to the anterior tooth fixing arm 260. The detachable method at this time can use a well-known method, such as an interference fitting method, a pin fixing method, a screw fixing method.

Therefore, by replacing the preceding tooth fixing finger 262, it is possible to correspond to both the left and right slide fasteners.

In addition, an allowance 249 is formed under the center block 244 so that the leading tooth fixing finger 262 is close to the cutter 252.

Therefore, a space in which the leading tooth fixing arm 260 can freely be lifted by the margin part 249 is secured.

The leading tooth fixing finger 262 is positioned below the bottom of the center block 244, so that the leading tooth fixing finger 262 may be in contact with the teeth 12 of the tape 10 before the cutter 242.

Next, as shown in FIG. 7, a trailing teeth fixing part is formed on the opposite side of the tape 10 in the direction of travel of the tape block 249 in the center block 244.

The trailing tooth fixing part is a state in which the leading tooth fixing part first grips the tooth part 12 of the tape 10, and the tape 10 is fixed to the tape before the cutter 242 touches the tooth part 12. Pulling in the supply direction of (10) serves to give a constant tension.

The trailing teeth fixing part includes a trailing teeth fixing finger 245 fixed to enable elastic displacement by a finger spring 243 formed in the installation hole 241 formed at the lower portion of the center block 244. The installation hole 241 is installed to be inclined (for example, 60 degrees) with respect to the moving direction of the center block 244, and the trailing tooth fixing finger 245 protrudes toward the lower end of the cutter slit 246. Is placed. Therefore, as shown in FIG. 7, a part of the trailing pin fixing finger 245 overlaps the lower end of the cutter slit 246, and the cutter 242 touches the tape 10 at the moment. The trailing tooth fixing finger 245 is displaced in the advancing direction of the tape 10 so as not to disturb the movement of the cutter 242.

An end of the trailing tooth fixing finger 245 is formed to be inclined (for example, 30 degrees) in the advancing direction of the tape 10, so that the trailing tooth fixing finger 245 is pushed into the installation hole 241. In this case, since the end portion of the trailing tooth fixing finger 245 is horizontally displaced in the advancing direction of the tape 10, the tape 10 is pulled in a direction away from the preceding tooth fixing finger 262.

In addition, an end of the trailing tooth fixing finger 245 has a protrusion to be coupled to at least two teeth of one left and one right, preferably three or more teeth alternately left and right.

The trailing tooth fixing finger 245 is positioned below the bottom surface of the center block 244, so that the trailing tooth fixing finger 245 may be in contact with the teeth 12 of the tape 10 before the cutter 242. However, by placing the preceding tooth fixing finger 262 further below the trailing tooth fixing finger 245, after the preceding tooth fixing finger 262 contacts the tooth 12 of the tape 10. The trailing tooth fixing finger 245 may be in contact.

The slide fastener tape cutter 200 according to the present invention is basically configured as described above. Hereinafter, an operation process of the slide fastener tape cutter 200 will be described.

First, the tape 10 is installed on the lower block 206 of the lower die 202 while the upper die 230 is in top dead center. To this end, by pressing the handles (208, 210), the pushing bars (212, 214) are lifted from the tape seat 222 to secure a space, the tape 10 is inserted, the force applied to the handles (208, 210) 2, the pushing bars 212 and 214 press the tape 10 to rest on the tape seat 222.

The tape 10 is first passed through the guide 100 shown in FIG. 1 before the cutter 200, and after passing through the cutter 200, the tooth decay 300, the tooth removal part sensor ( 400) and passing through the feeding roller 500 in order to complete the preparation of the cutting operation. Using the tooth cutter of the present invention, the tooth removing part sensor 400 can be omitted.

When the cutting operation is started while the feeding roller 500 is operated, the winding of the feeding roller 500 is stopped after winding the tape 10 by a predetermined length by the feeding roller 500, and FIG. 8A and FIG. It is in the same state. In this state, the upper die 230 starts to descend by the operating arm 232 connected to the press apparatus (not shown).

As the upper die 230 descends, the leading tooth fixing finger 262 of the preceding tooth fixing part is also lowered, and the center block 244 is also lowered at the same time. Accordingly, the leading tooth fixing finger 262 positioned below the bottom of the center block 244 contacts the teeth 12 of the tape 10 as shown in FIG. 2B, and engages with the teeth 12. Is fixed.

When the center block 244 is further lowered, as shown in FIG. 2C, the trailing tooth fixing finger 245 comes into contact with the teeth 12 of the tape 10 and is fixedly coupled to the teeth 12. At this time, the trailing tooth fixing finger 245 retreats in the inclined direction of the installation hole 241 as the center block 244 descends, so that the trailing tooth fixing finger 245 moves away from the preceding tooth fixing finger 262. Since the tooth 12 is displaced while being displaced, the tape 10 between the leading tooth fixing finger 262 and the trailing tooth fixing finger 245 is tensioned and stretched.

Next, when the bottom surface of the center block 244 touches the top surface of the lower block 206 of the lower die 202, the interval between the center block 244 and the upper die 230 is reduced, The cutter 242 protrudes from the cutter slit 246 of the center block 244. Accordingly, the cutter 242 is inserted into the cutter hole 224 while being crushed while pushing down the teeth 12 of the tape 10 between the leading tooth fixing finger 262 and the trailing tooth fixing finger 245. Done.

At this time, as described above, since the width of the cutter hole 224 is formed larger than the width of the cutter 242, the tooth 12 is pushed down while the cutter 242 pushes the tooth 12 It is broken while rotating downwards. Therefore, the fiber state of the cut portion of the tape 10 is not damaged.

Then, the upper die 230 is raised again, while the feeding roller 500 operates, a state in which the next cutting operation is prepared is prepared.

Repeating the operation as described above can be carried out continuously.

As described above, it has been described with reference to the preferred embodiment of the present invention, but those skilled in the art various modifications and changes of the present invention without departing from the spirit and scope of the present invention described in the claims below I can understand that you can.

10: tape 12: tooth part
100: guide 200: cutting machine
202: lower die 204: guide beam
206: lower block 208, 212: handle
212,214: Pushing bar 213,215: Tape support protrusion
216,218: Pushing spring 220: Lower core
222: tape seat 224: cutter hole
226,228: support joint 230: upper die
232: operating arm 234: guide hole
236: Center Block Fixation 238: Connecting Rod
240: connecting spring 241: mounting hole
242: cutter 243: finger spring
244: center block 245: trailing attachment fixing finger
246: cutter slit 249: clearance
250: predecessor government 252: main bracket
254: control panel 256: moving plate
260: anterior tooth fixation arm 262: anterior tooth fixation finger
300: tooth brush 400: tooth removal sensor
500: feeding roller

Claims

In a cutting machine for removing the teeth of the slide fastener tape at a constant pitch,
A lower die including a lower block having a tape seat through which the tape passes stably and a cutter hole formed at a center thereof, and a tape pushing mechanism for pushing down the tape passing through the tape seat;
An upper die having a guide hole into which the guide beam formed in the lower die is inserted and movable in a vertical direction with respect to the lower die by a driving unit;
A cutter integrally fixed to the upper die;
A center block having a connection rod installed to be movable in a vertical direction with respect to the upper die, a connection spring installed to act as a restoring force in a direction spaced from the upper die, and a cutter slit formed to penetrate the cutter;
A preliminary tooth fixing part fixed to the upper die and installed to be exposed below the bottom surface of the center block to primarily fix the tape; And
A slide fastener including a trailing portion fixing portion fixed to the center block and installed to be exposed below the bottom surface of the center block to pressurize the tape in a direction in which the tape is secondly fixed while applying tension to the tape; Tape cutter.

According to claim 1, The tape pushing mechanism, Pushing bar rotatably installed in a support joint integrally formed in the lower block, a handle extending the center of the pushing bar extending around the support joint, one end fixed to the handle And a pushing spring having the other end fixed to the upper surface of the lower die.

The method according to claim 1, wherein the preceding tooth fixing part comprises: a main bracket fixed to the upper die, an adjustment plate fixed to the main bracket, a movable plate slidable in a traveling direction of the tape with respect to the main bracket, and A slide fastener tape cutting machine, comprising: a leading tooth fixing arm installed on the moving plate and having a pressing force acting downward, and having a leading tooth fixing finger coupled to the tooth at an end thereof.

The cutting device for slide fastener tape according to claim 1, wherein the leading tooth fixing finger is detachable from the leading tooth fixing arm.

The method of claim 1, wherein the trailing portion fixing portion is installed so that a part of the trailing portion fixing portion protrudes from an installation hole inclined with respect to the movement direction of the center block at a lower portion of the center block, and the finger spring disposed in the installation hole. And a trailing tooth fixing finger which can be inserted into an installation hole, and an end portion of the trailing tooth fixing finger is formed to be inclined in the advancing direction of the tape.