WO2015097873A1

WO2015097873A1 - Positioning device in slide fastener chain space creation device

Info

Publication number: WO2015097873A1
Application number: PCT/JP2013/085145
Authority: WO
Inventors: 秀男島井; 酒井　明
Original assignee: Ykk株式会社
Priority date: 2013-12-27
Filing date: 2013-12-27
Publication date: 2015-07-02
Also published as: CN104379226B; TW201531253A; TWI526172B; CN104379226A

Abstract

Provided is a positioning devices for a slide fastener chain space creation device, whereby it is possible to correctly position a space in a slide fastener chain such that teeth at the upstream side end and the downstream side end which are adjacent to the space are neither damaged nor incompletely removed. The positioning device for the slide fastener chain space creation device comprises: a first positioning device (40) which positions an upstream side row of teeth which are adjacent to a space creation site (15) of a slide fastener chain (10); a second positioning device (50) which positions a downstream side row of teeth; a first detection means (43) for detecting when the first positioning device (40) has positioned the row of teeth; a second detection means (53) for detecting when the second positioning device (50) has positioned the row of teeth; and a control device (63) which operates a teeth removal device (30) when the first detection means (43) and the second detection means (53) have carried out the detection operations. The teeth removal device (30) is operated to create a space (16) in a state wherein the upstream side and the downstream side rows of teeth are correctly positioned.

Description

Positioning device in space creation device for slide fastener chain

The present invention provides an apparatus for creating a space in which a service tooth is not present by removing a service tooth of a predetermined length on a long slide fastener chain, and when creating a space, an upstream end and a downstream side of the space The present invention relates to a positioning device for a space creation device for a slide fastener chain that is positioned accurately so as not to damage a tooth that is adjacent to an end and to remain in a half-missed state.

2. Description of the Related Art Conventionally, in a manufacturing process of a slide fastener, a space creation device is used to create a space having a predetermined length in which a tooth is not present on a long slide fastener chain.
A conventional space creation device includes a device for transferring a slide fastener chain, a device for removing a tooth from a fastener tape, and the like, and creates a space by removing the tooth at a space creation portion of the slide fastener chain.
When creating a space in the slide fastener chain, the accuracy may vary depending on various causes such as errors in the space creation device itself, expansion and contraction of the fastener tape, variations in the size of the tooth pitch itself, and inertia when the slide fastener chain is stopped. Positioning cannot be performed, and in the space processing, the tooth adjacent to the upstream end and the downstream end of the space may be damaged, or may remain in a half-missed state.
In order to prevent this, a space creation device provided with a positioning device to correct the position of the engagement tooth adjacent to the upstream end and the downstream end of the space to perform accurate positioning is disclosed in Patent Documents 1, 2, 3 and 4.

In the space creation devices disclosed in Patent Literature 1 and Patent Literature 2, a positioning device is provided upstream or downstream of the space creation site to correct the position of the tooth.
In the space creation devices disclosed in Patent Literature 3 and Patent Literature 4, positioning devices are provided at two locations on the upstream side and the downstream side of the space creation site to correct the position of the tooth.
In the space creation device disclosed in Patent Document 3, the claw of the positioning device provided on the upstream side and the downstream side of the space creation site rushes into the gap between the upstream and downstream ends of the space creation site. Then, the nail is moved toward the center of the space creation site, so that the gap between the service teeth is temporarily reduced to correct the position of the service teeth.
In the space creation device disclosed in Patent Document 4, after supporting the pins of the positioning device provided on the upstream side and the downstream side of the space creation site so as to swing back and forth, and rushing into the tooth gap in a free state, By making the pin vertical, the position of the service tooth is corrected by moving the service tooth adjacent to the upstream end and the downstream end of the space creation part back and forth.

Japanese Utility Model Publication No. 56-33362 Japanese Examined Patent Publication No. 63-1041 Japanese Utility Model Publication No. 53-16713 Japanese Utility Model Publication No.53-31611

As disclosed in Patent Documents 1 and 2, in the case where the positioning device is provided at one position on the upstream side or the downstream side of the space creation part, the position of the tooth on the side where the positioning device is not provided is not corrected. For this reason, one side of the tooth may be damaged or partially missing.
In order to prevent this, as disclosed in Patent Documents 3 and 4, positioning devices may be provided on the upstream side and the downstream side of the space creation site.
However, since the positioning device disclosed in Patent Documents 3 and 4 is not provided with a means for detecting that the pawl or pin of the positioning device has surely entered the gear tooth gap, it does not enter the tooth gap. The dentition removing device may operate while remaining on the outer surface of the dentition, and as a result, the dentition may be damaged or remain in a semi-missed state.

The present invention has been made in view of the above-described problems, and does not damage the tooth of the upstream end and the downstream end adjacent to the space of the slide fastener chain or remain in a half-missed state, and is in a good state. It is an object of the present invention to provide a positioning device in a slide fastener chain space creation device which can create a space as a tooth of a tooth.

The present invention includes a first positioning device 40 for positioning an upstream dentition in the chain transfer direction adjacent to the space creation portion 15 of the slide fastener chain 10;
A second positioning device 50 for positioning a dentition on the downstream side in the chain transfer direction adjacent to the space creating portion 15 of the slide fastener chain 10;
A first detecting means 43 for detecting that the first positioning device 40 has positioned an upstream dentition in the chain transfer direction adjacent to the space creating portion 15 of the slide fastener chain 10;
A second detection means 53 for detecting that the second positioning device 50 has positioned the downstream tooth arrangement in the chain transfer direction adjacent to the space creating portion 15 of the slide fastener chain 10;
And a control device 63 for operating the dentition removing device 30 for removing the dentition of the space creating part 15 of the slide fastener chain 10 by the detection operation of the first detection means 43 and the second detection means 53. It is the positioning device in the space creation device of the slide fastener chain characterized by the above.

According to the present invention, the first positioning device 40 firstly positions the claw 45 by inserting the claw 45 into the tooth gap 14 of the tooth arrangement on the upstream side in the chain transfer direction adjacent to the space creating portion 15 of the slide fastener chain 10. A positioning member 41, wherein the first detection means 43 detects that the claw 45 of the first positioning member 41 has entered the tooth gap 14;
The second positioning device 50 includes a second positioning member 51 for positioning a claw 55 into the tooth gap 14 of the tooth arrangement 14 on the downstream side in the chain transfer direction adjacent to the space creating portion 15 of the slide fastener chain 10. The second detection means 53 may be a positioning device in a space creation device for a slide fastener chain that detects that the claw 55 of the second positioning member 51 has entered the tooth gap 14.

In the present invention, the first positioning member 41 moves over a first position where the claw 45 enters the engagement tooth gap 14 and a second position where the claw 45 separates from the engagement tooth 13.
The second positioning member 51 moves over a first position where the claw 55 has entered the tooth gap 14 and a second position where the claw 55 is separated from the tooth 13,
A restriction device is provided that restricts movement of the second positioning member 51 to the first position, and moves the second positioning member 51 to the first position after the first positioning member 41 has moved to the first position. Further, the positioning device in the space creating device for the slide fastener chain can be used.

According to the positioning device thus configured, the claw 55 of the second positioning member 51 enters the engagement gear gap 14 before the claw 45 of the first positioning member 40 and is adjacent to the space creating portion 15 of the slide fastener chain 10. The downstream dentition is not positioned, and the pawl 45 of the first positioning member 41 always enters the dentition gap 14, and the upstream dentition adjacent to the space creation portion 15 of the slide fastener chain 10. Is positioned first, it is possible to position the downstream dentition adjacent to the space creating portion 15 of the slide fastener chain 10 with tension applied to the fastener tape 12 of the slide fastener chain 10.
Therefore, the upstream side dentition and the downstream side dentition adjacent to the space creating member 15 of the slide fastener chain 10 can be positioned correctly and reliably.

The regulating device of the present invention includes a first operating rod 42 attached to the first positioning member 41 and a second operating rod 52 attached to the second positioning member 51,
When the first positioning member 41 is not at the first position, the second operating rod 52 abuts against the first operating rod 42 to restrict the second positioning member 51 from moving to the first position, and the first positioning member When 41 is in the first position, the second positioning member 51 can be moved to the first position.

In this case, since the movement of the second positioning member 51 to the first position is mechanically restricted, the operation reliability of the restriction device is excellent.

The present invention includes an urging unit 46 that urges the first positioning member 41 toward the first position, and moves the first positioning member 41 to the second position against the urging of the urging unit 46. Holding means 47 that operates in a state of holding and releasing the holding,
A biasing means 56 for biasing the second positioning member 51 toward the first position, and a state in which the second positioning member 51 is moved to the second position against the biasing of the biasing means 56 and held. And the holding means 57 which operates to the state which cancels | releases holding | maintenance can be provided, and it can be set as the positioning device in the space creation apparatus of a slide fastener chain.

In this way, the holding means 47 and 57 can be positioned simply by operating in the holding state and the holding releasing state, and the operation control is easy.

In the present invention, the first positioning member 41 and the second positioning member 51 have a plurality of

claws

45 and 55 spaced apart in the transfer direction of the slide fastener chain 10.
A positioning device in a space creation device for a slide fastener chain in which a plurality of

adjacent claws

45 and 55 sandwich one service tooth 13 by a plurality of

claws

45 and 55 entering the service tooth gap 14. Can do.

In this way, it is possible to suppress the displacement, movement, inclination, etc. of the positioned dentition and to position the dentition with high accuracy.

Since the present invention removes the dentition of the space creation site 15 in a state where the upstream dentition and the downstream dentition adjacent to the space creation site 15 of the slide fastener chain 10 are positioned, the slide fastener The space 16 is created as a good tooth without causing damage or remaining in a half-missed state of the tooth 13b at the upstream end and the tooth 13c at the downstream end adjacent to the space creation portion 15 of the chain 10. can do.

It is a schematic front view of the space creation apparatus of this invention. It is a top view of a slide fastener chain. It is a top view of the slide fastener chain which created the space. It is a top view of a positioning device. It is explanatory drawing of a positioning effect | action. It is explanatory drawing of a positioning effect | action. It is explanatory drawing of a positioning effect | action.

A space creating apparatus for creating a space in the slide fastener chain will be described with reference to FIG.
As shown in FIG. 1, the space creation device 1 includes a chain transfer device 20 that transfers a slide fastener chain 10 (hereinafter simply referred to as a chain 10) along a chain transfer path, and a task that removes the tooth of the chain 10. Tooth removal device 30, first positioning device 40 provided on the upstream side of the tooth removal device 30, second positioning device 50 provided on the downstream side of the tooth removal device 30, and upstream side of the first positioning device 40 And a detecting device 60 for detecting the amount of transfer of the chain 10 provided in the apparatus.
The upstream side is the upstream side in the transfer direction of the chain 10 in the chain transfer path, and the downstream side is the downstream side in the transfer direction of the chain 10 in the chain transfer path.

As shown in FIG. 2, the chain 10 includes two fastener stringers 11.
The fastener stringer 11 has a fastener tape 12 and a dentition row in which a dentition 13 is attached to one side edge of the fastener tape 12 at a constant pitch in the longitudinal direction. It is spaced apart and has a tooth gap 14. For example, a synthetic resin service tooth 13 is attached to one side edge of the fastener tape 12 by injection molding.

As shown in FIG. 1, the chain transfer device 20 includes a drive roller 21 and a pinch roller 22. The chain 10 is sandwiched between the drive roller 21 and the pinch roller 22, and the drive roller 21 is rotated in the direction of the arrow to transfer the chain 10 in the downstream direction indicated by the arrow a.
By rotating the driving roller 21 in the direction opposite to the arrow, the chain 10 is transferred in the upstream direction indicated by the arrow b.

The tooth removal device 30 includes a die 31 and a punch 32. By moving the die 31 or the punch 32 toward the chain 10, the plurality of service teeth 13, that is, the service teeth row of the space creation site 15 of the chain 10 is removed from the fastener tape 12. Thereby, as shown in FIG. 3, a space 16 in which the tooth 13 does not exist in the chain 10 is created.
The detection device 60 includes a gear 61 and an encoder 62, the gear 61 meshes with the engagement teeth 13 of the chain 10, and the gear 61 rotates by the transfer of the chain 10.
The encoder 62 outputs a signal at every predetermined rotation angle of the gear 61, for example, every time one engagement tooth 13 passes. The signal output from the encoder 62 is sent to the control device 63.
The control device 63 detects the transfer amount of the chain 10 based on the signal of the encoder 62.

The first positioning device 40 positions an upstream dentition adjacent to the space creation portion 15 of the chain 10.
As shown in FIG. 4, the first positioning device 40 includes a first positioning member 41, a first operating rod 42, and first detection means 43.
The first positioning member 41 positions the upstream dentition adjacent to the space creating portion 15 of the chain 10 in the chain transfer direction.
The first positioning member 41 is disposed in parallel to the surface of the fastener tape 12 on the side of the chain 10 in the direction perpendicular to the chain transfer direction. The first positioning member 41 is supported by a guide portion 44 fixed to a frame (not shown), and the first positioning member 41 moves forward and backward with respect to the service teeth 13.
When the first positioning member 41 moves forward, the first positioning member 41 approaches the engagement tooth 13.
When the first positioning member 41 is retracted, the first positioning member 41 is separated from the service teeth 13.
The guide portion 44 includes a one-side guide 44 a and another-side guide 44 b, and the one-side guide 44 a is in contact with one side surface 41 a on one side of the first positioning member 41 in the chain transfer direction. The other side guide 44 b contacts the other side surface 41 b of the second positioning member 41 on the other side in the chain transfer direction.

A plurality of claws 45 are provided at equal intervals in the chain transfer direction at the tip of the first positioning member 41 facing the service teeth 13. In the embodiment, three claws 45 are provided at equal intervals in the chain transfer direction.
The claw 45 enters the dentition gap 14 of the upstream side dentition adjacent to the space creation part 15 of the chain 10 and positions the upstream dentition adjacent to the space creation part 15 of the chain 10.
The interval in the chain transfer direction between adjacent claws 45 is the same as the dimension of the service teeth 13 in the chain transfer direction, that is, the width of the service teeth 13.
As a result, when the claw 45 enters the service gear gap 14, the adjacent claw 45 comes into contact with both side surfaces of the service tooth 13 in the width direction, and the first positioning member 41 sandwiches the service gear 13.

The first positioning member 41 is advanced to the first position by the biasing means 46.
When the first positioning member 41 is in the first position, the claw 45 enters the engagement tooth gap 14.
The first positioning member 41 is a holding means 47 and retracts to the second position against the urging force of the urging means 46, and the first positioning member 41 is held at the second position by the holding means 47. When the holding means 47 releases the holding, the first positioning member 41 is moved to the first position by the urging means 46.
That is, the holding means 47 operates in the holding state and the holding release state.

In the embodiment, a first actuating rod 42 is attached to the rear end of the first positioning member 41 on the side opposite to the tooth 13.
A compression coil spring 46b is attached between the spring receiver 46a of the bracket (not shown) and the first actuating rod 42, and the first positioning member 41 is constantly urged in the direction of the service tooth 13, that is, in the forward direction by the compression coil spring 46b. . Thus, the urging means 46 is provided.
The air cylinder 47a is attached to the one side guide 44a of the guide portion 44 in the front-rear direction, and the piston 47b of the air cylinder 47a is brought into contact with the first operating rod 42 to form the holding means 47.

As a result, when the piston 47b of the air cylinder 47a extends, the piston 47b pushes the first operating rod 42 rearward, and the first operating rod 42 contracts the compression spring 46b, so that the first positioning member 41 moves backward, The positioning member 41 is in the second position where the claw 45 is separated from the service tooth 13.
When the piston 47b of the air cylinder 47a is contracted, the piston 47b is separated from the first actuating rod 42, the compression spring 46b is extended, and the first actuating rod 42 moves toward the engagement tooth 13, so that the first positioning member 41 is Advance.

The first detection means 43 detects that the first positioning member 41 has moved to the first position.
In the embodiment, a first proximity switch 43 a is attached to the other guide 44 b of the guide portion 44. The first proximity switch 43a is opposed to the first operating rod 42, detects that the first operating rod 42 advanced by the extension of the compression spring 46b has approached the first proximity switch 43a at a predetermined distance, and the first proximity switch 43a 43a operates and outputs a signal.
When the first operating rod 42 comes close to the first proximity switch 43 at a predetermined distance, the claw 45 of the first positioning member 41 enters the engagement tooth gap 14. That is, the first positioning member 41 moves to the first position.
As a result, the first proximity switch 43 confirms that the first positioning member 41 has moved to the first position and the claw 45 has entered the engagement tooth gap 14, and outputs a signal.

The signal output from the first proximity switch 43a is sent to the control device 63, and the control device 63 controls the operation of each device in relation to the signal of the second proximity switch 53a described later of the second positioning device 50. It has become.
For example, the signal of the first proximity switch 43a and the signal of the second proximity switch 53a are sent to the control device 63, and the control device 63 controls the operations of the chain transfer device 20, the tooth removal device 30, and the

air cylinders

47a and 57a.

The second positioning device 50 positions a downstream dentition adjacent to the space creation portion 15 of the chain 10.
The second positioning device 50 has the same configuration as that of the first positioning device 40, and includes a second detection means 53 having a second positioning member 51, a second operating rod 52, and a second proximity switch 53a.
The second positioning member 51 is arranged in parallel to the surface of the fastener tape 12 on the side of the chain 10 in the direction perpendicular to the chain transfer direction. The second positioning member 51 is supported by the guide portion 54 and moves forward and backward.
As the first positioning member 51 moves forward, the second positioning member 51 becomes the first position, and the three claws 55 provided at the tip of the first positioning member 51 are located on the downstream side of the dentition row adjacent to the space creating portion 15 of the chain 10. It is configured to enter the tooth gap 14 and position the downstream tooth row adjacent to the space creating portion 15.

The urging means 56 that urges the second positioning member 51 to the first position is constituted by a compression spring 56b that is in pressure contact with the second operating rod 52 and supported by a spring receiver 56a.
The holding means 57 for holding the second positioning member 51 in the second position is an air cylinder 57a attached to the other guide 54b of the guide portion 54.
The compression spring 56b is contracted by the extension of the piston 57b of the air cylinder 57a to push the second operating rod 52 backward, the second positioning member 51 is moved to the second position, and the second positioning member 51 is held at the second position. .

The second proximity switch 53a, which is the second detection means 53, is attached to the one side guide 54a of the guide portion 54 in the front-rear direction, and the second proximity switch 53a faces the second operating rod 52.
Similar to the first proximity switch 43a, the second proximity switch 53a detects that the second operating rod 52 has approached the second proximity switch 53a at a predetermined distance, and the claw 55 at the tip of the second positioning member 51 After confirming that it has entered the tooth gap 14, a signal is output. Accordingly, the second detection device 53 can detect that the second positioning member 51 has moved to the first position.
The signal output from the second proximity switch 53a is sent to the control device 63, and the control device 63 controls the operation of each device in association with the signal from the first proximity switch 43a.

In the second positioning device 50, the claw 45 of the first positioning member 41 always enters the upstream tooth gap 14 and the claw 55 of the second positioning member 51 always enters the downstream tooth gap 14. Thus, a regulating device is provided so as not to hinder upstream positioning by the first positioning device 40.
In the embodiment, the second operating rod 52 of the second positioning device 50 is disposed behind the first operating rod 42 of the first positioning device 40 as shown in FIG. The second actuating rod 52 is used as a restricting device so as not to always move forward by the first actuating rod 42 of the first positioning device 40.
4 is mechanically performed at the front-rear direction positions of the first operating rod 42 and the second operating rod 52, but is electrically controlled using an operation switch or the like. Anyway.

Next, the positioning action of the first positioning device 40 and the second positioning device 50 will be described.
The chain transfer device 20 is driven to transfer the chain 10 in the downstream direction along the chain transfer path. At this time, the

pistons

47b and 57b of the

air cylinders

47a and 57a are extended, and the first and

second positioning members

41 and 51 are held at the second position.
The transfer amount of the chain 10 is detected by the detection device 60, and the drive of the chain transfer device 20 is stopped when the transfer amount of the chain 10 reaches a predetermined value. As a result, the chain 10 stops so that the space creating portion 15 is positioned below the punch 32 of the tooth removal device 30.
In other words, in the embodiment, the length of the punch 32 of the tooth removal device 30 in the chain transfer direction is the same as the length of the space 16 of the chain 10.

With the chain 10 stopped, the

pistons

47b and 57b of the

air cylinders

47a and 57a of the first positioning device 40 and the second positioning device 50 are contracted, and the piston 47b is separated from the first and

second operating rods

42 and 52. . Thus, the first and

second positioning members

41 and 51 are advanced by the compression springs 46b and 56b.
At this time, if the dentition of the chain 10 is the correct position, the claw 45 of the first positioning member 41 and the claw 55 of the second positioning member 51 are located on the upstream side and the downstream side adjacent to the space creating member 15 of the chain 10. Each of them enters the tooth gap 14.
As a result, the first operating rod 42 of the first positioning device 40 approaches the first proximity switch 42a at a predetermined distance, and the second operating rod 52 of the second positioning device 50 approaches the second proximity switch 52a at a predetermined distance. Since the first proximity switch 42a and the second proximity switch 52a output signals, it is possible to know that the dentition of the chain 10 is in the correct position.
That is, when the first positioning member 41 of the first positioning device 40 moves forward to the first position and the claw 45 enters the engagement gear gap 14, the first proximity switch 42a outputs a signal. When the second positioning member 51 of the second positioning device 50 moves forward to the first position and the pawl 55 enters the tooth gap 14, the second proximity switch 52 outputs a signal.

When the first and

second positioning members

41, 51 are advanced by the compression springs 46b, 56b, the claw 45 of the first positioning member 41, if the position of the dentition row of the chain 10 is shifted and in an incorrect position, As shown in FIG. 5, the claw 55 of the second positioning member 51 abuts on the rear end portion 13 a of the service tooth 13 and does not move to the first position, so that the

claw

45, 55 does not protrude into the service gear gap 14. .
Even if the downstream side dentition adjacent to the space creation part 15 of the chain 10 is in the correct position, the position of the upstream side dentition adjacent to the space creation member 15 of the chain 10 is misaligned. If so, since the first positioning member 41 does not move to the first position, the second operating rod 52 contacts the first operating rod 42 and the second positioning member 51 cannot move to the first position.
That is, when the first positioning member 41 is not in the first position, the first operating rod 42 and the second operating rod 52 restrict the second positioning member 51 from moving to the first position.

For this reason, the first operating rod 42 of the first positioning device 40 and the second operating rod 52 of the second positioning device 50 are not close to the first proximity switch 43a and the second proximity switch 53a up to a predetermined distance. The proximity switch 43a and the second proximity switch 53a do not output a signal.
When this state continues for a certain time, a timer (not shown) of the control device 63 works, the control device 63 drives the chain transfer device 20 for a short time, and the chain transfer device 20 transfers the chain 10 slightly in the downstream direction.

As a result, as shown in FIG. 6, the claw 45 of the first positioning member 41 enters the service gear gap 14 to position the service tooth row on the upstream side of the space creation site 15.
As the first operating rod 42 comes close to the first proximity switch 43a to a predetermined distance and the first proximity switch 43a operates and outputs a signal, positioning of the upstream dentition adjacent to the space creation site 15 is performed. Make sure that
When the first positioning member 41 is in the first position, the second positioning member 51 can move to the first position without being restricted by the first operating rod 42 and the second operating rod 52.

However, as shown in FIG. 6, when the position of the downstream dentition adjacent to the space creation portion 15 of the chain 10 is shifted, the claw 55 of the second positioning member 51 of the second positioning device 50 is The second contact switch 53a of the second positioning device 50 is in contact with the rear end portion 13a of the downstream side tooth 13 adjacent to the space creating portion 15 of the chain 10 and the claw 55 does not enter the tooth gap 14. Does not operate and does not output a signal.
When the first proximity switch 43a outputs a signal and the second proximity switch 53a does not output a signal, that is, when the undetected state continues for a certain time, a timer (not shown) of the control device 63 operates and controls. The device 63 drives the chain conveying device 20 for a short time, and the chain conveying device 20 moves the chain 10 slightly in the downstream direction.

The upstream dentition adjacent to the space creating member 15 of the chain 10 is held by the claw 45 of the first positioning member 41, and the dentition is not transferred in the downstream direction.
For this purpose, as shown in FIG. 7, the fastener tape 12 on the downstream side of the dentition row held by the first positioning member 41 in the fastener tape 12 is extended, and the downstream adjacent to the space creating portion 15 of the chain 10. The side dentition moves slightly in the downstream direction with respect to the claw 55 of the second positioning member 51, and the claw 55 enters the dentition gap 14.
As a result, the downstream dentition adjacent to the space creation portion 15 of the chain 10 is positioned.
At the same time, since the second positioning member 51 has moved to the first position, the second operating rod 52 approaches the second proximity switch 53a up to a predetermined distance, and the second proximity switch 53a operates to output a signal. .

As shown in FIG. 7, the upstream side dentition row and the downstream side dentition row adjacent to the space creating member 15 of the chain 10 are positioned, respectively, and the first proximity switch 43a and the second proximity switch 53a are operated. , Each signal is sent to the control device 63.
The control device 63 drives the chain transfer device 20 in the reverse direction for a short time after stopping the chain transfer device 20, and moves the chain 10 slightly upstream to relieve the tension of the chain 10.
The control device 63 operates the tooth removal device 30 to remove the tooth arrangement of the space creation portion 15 of the chain 10 and create a space 16 as shown in FIG.

In this way, by positioning the upstream dentition and the downstream dentition adjacent to the space creation site 15 of the chain 10 and operating the dentist removal device 30 in that state, the space 16 is created. The upstream side engaging tooth 13b and the downstream end engaging tooth 13c adjacent to the space 16 of the chain 10 are not damaged and do not remain in a partially missing state, leaving the engaging tooth 13 in a good state. Space 16 can be created.

In the embodiment, the first positioning device 40 and the second positioning device 50 are configured so that the

claws

45 and 55 of the first and

second positioning members

41 and 51 enter the service gear gap 14 to position the service tooth row. However, the method of positioning the dental dentition is not limited to this.
For example, the service dentition is positioned by clamping the service dentition from above and below with a clamper.

In the embodiment, the urging means 46 and 56 are the compression coil springs 46b and 56b, but the present invention is not limited to this.
For example, by extending the air cylinder, the first and

second positioning members

41 and 51 are pushed in the forward direction, and when an external force in the backward direction is applied to the first and

second positioning members

41 and 51, the air cylinder is contracted.
Also, an air cylinder and a compression coil spring are combined.
Moreover, it is set as a tension coil spring.

In the embodiment, the holding means 47 and 57 are the

air cylinders

47a and 57a, but the present invention is not limited to this.
For example, a pinion and a rack rotated by a motor are used, and the rack is attached to the first and

second positioning members

41 and 51.
Further, a feed screw and a nut rotated by a motor are used, and the nut is attached to the first and

second positioning members

41 and 51.
Further, the cam follower is attached to the first and

second positioning members

41 and 51 using a cam and a cam follower.

In the embodiment, the first detection means 43 and the second detection means 53 are the first proximity switch 43a and the second proximity switch 53a. However, the present invention is not limited to this.
For example, a contact type switch such as a limit switch is used.

The positioning device of the present invention is not limited to the chain 10 in which the engagement teeth 13 are attached to the fastener tape 12 by injection molding, but between adjacent engagement teeth such as a chain having a fastener element formed of a monofilament in a coil shape or a zigzag shape. Any type can be used as long as there is a gap in the gap and the claw of the positioning member can enter and positioning can be performed.

DESCRIPTION OF SYMBOLS 10 ... Slide fastener chain, 12 ... Fastener tape, 13 ... Teeth, 14 ... Teeth gap, 15 ... Space creation part, 16 ... Space, 20 ... Chain conveyance apparatus, 30 ... Teeth removal apparatus, 40 ... First positioning 41: first positioning member 42: first operating rod 43: first detecting means 43a: first proximity switch 45: claw 46: biasing means 46b: compression coil spring 47: holding means , 47a ... air cylinder, 50 ... second positioning device, 51 ... first positioning member, 52 ... second operating rod, 53 ... second detecting means, 53a ... second proximity switch, 55 ... claw, 56 ... biasing means , 56b ... compression coil spring, 57 ... holding means, 57a ... air cylinder, 63 ... control device.

Claims

A first positioning device (40) for positioning a tooth arrangement on the upstream side in the chain transfer direction adjacent to the space creating portion (15) of the slide fastener chain (10);
A second positioning device (50) for positioning a dentition row on the downstream side in the chain transfer direction adjacent to the space creating portion (15) of the slide fastener chain (10);
First detecting means (43) for detecting that the first positioning device (40) has positioned the dentition on the upstream side in the chain transfer direction adjacent to the space creating portion (15) of the slide fastener chain (10). When,
Second detection means (53) for detecting that the second positioning device (50) has positioned the dentition on the downstream side in the chain transfer direction adjacent to the space creating part (15) of the slide fastener chain (10). When,
A tooth removal device (30) for removing the tooth arrangement of the space creating part (15) of the slide fastener chain (10) by the detection operation of the first detection means (43) and the second detection means (53). And a control device (63) for operating the slide fastener chain in the space creating device.
The first positioning device (40) plunges a claw (45) into the tooth gap (14) of the tooth arrangement on the upstream side in the chain transfer direction adjacent to the space creation part (15) of the slide fastener chain (10). The first detecting means (43) detects that the claw (45) of the first positioning member (41) has entered the tooth gap (14). And
The second positioning device (50) plunges the claw (55) into the tooth gap (14) of the tooth arrangement on the downstream side in the chain transfer direction adjacent to the space creation part (15) of the slide fastener chain (10). And the second detecting means (53) detects that the claw (55) of the second positioning member (51) has entered the tooth gap (14). The positioning device in the space creation device for a slide fastener chain according to claim 1.
The first positioning member (41) moves over a first position where the claw (45) enters the engagement tooth gap (14) and a second position where the claw (45) is separated from the engagement tooth (13). And
The second positioning member (51) moves between a first position where the claw (55) enters the engagement tooth gap (14) and a second position where the claw (55) is separated from the engagement tooth (13). And
The movement of the second positioning member (51) to the first position is restricted, and after the first positioning member (41) has moved to the first position, the second positioning member (51) moves to the first position. The positioning device in the space creation device for a slide fastener chain according to claim 2, wherein a restriction device is provided.
The regulating device includes a first operating rod (42) attached to the first positioning member (41) and a second operating rod (52) attached to the second positioning member (51).
When the first positioning member (41) is not in the first position, the second positioning member (51) moves to the first position by the second operating rod (52) coming into contact with the first operating rod (42). The positioning of the slide fastener chain in the space creating device according to claim 3, wherein the second positioning member (51) can be moved to the first position when the first positioning member (41) is in the first position. apparatus.
A biasing means (46) for moving and biasing the first positioning member (41) toward the first position, and a second biasing means (46) against the biasing of the biasing means (46). Provided with a holding means (47) that operates in a state of moving to a position and holding and a state of releasing the holding;
A biasing means (56) for moving and biasing the second positioning member (51) toward the first position, and a second biasing means (56) against the biasing of the biasing means (56). The positioning device in the space creation device for a slide fastener chain according to claim 4, further comprising holding means (57) that operates to move to a position and hold and to release the holding.
The first positioning member (41) and the second positioning member (51) have a plurality of claws (45), (55) spaced in the transfer direction of the slide fastener chain (10),
Claim that a plurality of adjacent claws (45), (55) sandwich one service tooth (13) by a plurality of claws (45), (55) entering the service tooth gap (14) Item 6. A positioning device in a space creation device for a slide fastener chain according to any one of Items 1 to 5.