TW201832681A - Slide fastener chain positioning device and slide fastener chain void forming device comprising first and second positioning device comprising first and second positioning member that insert first and second stop blocks into first and second gaps for positioning - Google Patents

Abstract

The present invention provides a slide fastener chain positioning device and a slide fastener chain void forming device. The slide fastener chain positioning device comprises first and second positioning devices. The first and second positioning devices respectively comprise first and second positioning members, which inserts first and second stop blocks into first and second gaps between elements of an element row of the slide fastener chain in the upstream side and downstream side of a chain conveyance direction and adjacent to void forming portion and a tape body of a fastener tape that is different from the fastener tape to which the elements are mounted in order to achieve positioning, and first and second inspection units that detects the first and second stop blocks of the first and second positioning members inserted into the first and second gaps.

Description

Positioning device for zipper chain and space forming device for zipper chain

The present invention relates to a locating device for a slide fastener chain and a space forming device for a zipper chain, wherein the locating device of the zipper chain removes an element of a predetermined length in an elongated zipper chain. When a space is formed in the apparatus that forms the space in which the element does not exist, the element adjacent to the upstream end and the downstream side of the space is not damaged, and the element is correctly positioned so as not to remain in the half defect state. .

Conventionally, in the manufacturing process of a zipper, for example, a space forming device is used, and a space of a predetermined length in which a chain element does not exist is formed in a long zipper chain.

A conventional space forming apparatus includes a device for transporting a fastener chain, a device for removing an element from a fastener tape, and the like, and a fastener is formed by removing a fastener element at a space forming portion of the fastener chain.

When the space is formed in the zipper chain, the space forming device itself may not be correctly positioned due to various errors such as the error of the space forming device, the expansion and contraction of the zipper tape, the unevenness of the size of the fastener element itself, and the inertness of the zipper chain when the transfer is stopped. During the processing, the element adjacent to the upstream end and the downstream end of the space may be damaged or may remain in the semi-defective state.

In order to prevent this, Patent Document 1 discloses a space forming device that fixes a position of an element adjacent to an upstream side end and a downstream side end of a space by providing a positioning device, thereby performing accurate positioning.

In the positioning device disclosed in Patent Document 1, the claw is inserted into the element tooth gap of the element row on the upstream side in the chain transfer direction adjacent to the space forming portion of the fastener chain, and the positioning is performed.

[Background of the Invention] [Patent Document 1] [Patent Document 1] International Publication No. 2015/097873 [Patent Document 2] International Publication No. 2011/039868

[Problems to be Solved by the Invention] The fastener element used in the positioning device disclosed in Patent Document 1 has a structure with a pitch of one element with respect to two elements. On the other hand, the granular fastener element described in Patent Document 2 has a structure with a half pitch with respect to the two element teeth. When the positioning device disclosed in Patent Document 1 is applied to the granular fastener element described in Patent Document 2, the left and right sides of the granular fastener element cannot be distinguished, and thus the pitch may be shifted.

The present invention has been made in view of the above-described problems, and an object of the invention is to provide a positioning device for a fastener chain and a space forming device for a fastener chain that can accurately position a fastener chain having a granular element and can prevent damage of an element.

[Technical means for solving the problem] The positioning device of the fastener chain of the present invention performs positioning of a fastener chain, the fastener chain having an element, which is a first side element to be attached to a fastener tape when engaged The second side fasteners mounted on the other zipper tape are alternately arranged in a straight line, and the positioning device of the zipper chain includes a first positioning device and a second positioning device, the first positioning device comprising: a first positioning member, The element of the element row on the upstream side in the direction in which the chain is adjacent to the space forming portion of the fastener chain, and the first part of the belt main body of the other fastener tape different from the fastener tape to which the element is attached The gap is inserted into the first block to perform positioning; and the first detecting unit detects that the first block of the first positioning member is inserted into the first gap, and the second positioning device comprises: a second positioning member, an element of the element row on the downstream side in the direction in which the chain is adjacent to the space forming portion of the fastener chain, and another zipper tape different from the zipper tape on which the element is attached The second body portion is inserted into the gap with a second stopper, and positioning; and the second detecting means, the detecting the second positioning a second stopper member inserted into the second gap.

Further, in the positioning device for a fastener chain according to the present invention, the first stopper has a pressing portion defined by a slit formed on the front side, the pressing portion including: an insertion portion inserted into the first gap; and a contact a portion that comes into contact with the element when the insertion portion is inserted.

In the positioning device for a fastener chain according to the present invention, the contact portion is a wall-shaped portion that rises from the insertion portion, and the element is inserted into the first gap in a state where the first stopper is inserted into the first gap The surface facing the upstream side and the surface facing the downstream side.

In the positioning device for a fastener chain according to the present invention, a first upstream side chamfered portion is formed at an upstream side end portion of the first stopper, and a first downstream side is formed at a downstream side end portion of the first stopper Chamfering.

In the positioning device for a fastener chain according to the present invention, the second stopper has a claw portion defined by a slit formed on the front side and inserted into the second gap.

In the positioning device for a fastener chain according to the present invention, a second downstream side chamfered portion is formed at a downstream end portion of the second stopper.

The space forming device of the zipper chain of the present invention is characterized in that: the positioning device of the zipper chain; the element removing device, wherein the detecting operation is performed by the first detecting unit and the second detecting unit, The element row of the zipper chain is removed from the space forming portion; and a control device that operates the element removing device.

[Effects of the Invention] According to the positioning device for a fastener chain of the present invention, it is possible to accurately position a fastener chain having a granular element and to prevent damage of the element 13 .

A space forming apparatus 1 that forms a space in a fastener chain will be described with reference to the drawings.

Fig. 1 is a schematic front view of a space forming apparatus of the present embodiment. Fig. 2 is a plan view of the fastener chain of the embodiment. Fig. 3 is a plan view of the fastener chain of the embodiment in which a space is formed.

As shown in FIG. 1, the space forming apparatus 1 includes: a chain transfer device 20 for transporting the fastener chain 10 along the chain transfer path; an element removing device 30 for removing the fastener elements of the fastener chain 10; and a first positioning device 40, On the upstream side of the element removing device 30; the second positioning device 50 is disposed on the downstream side of the element removing device 30; and the detecting device 60 is disposed on the upstream side of the first positioning device 40 and performs the transfer amount of the chain 10 Detection. Here, the upstream side is the upstream side in the transfer direction of the fastener chain 10 of the chain transfer path, and the downstream side is the downstream side in the transfer direction of the fastener chain 10 of the chain transfer path.

As shown in FIG. 2, the fastener chain 10 is provided with two fastener stringers 11. The fastener stringer 11 has a fastener tape 12, and an element row in which the fastener element 13 is attached to one side edge of the fastener tape 12 at a predetermined pitch and length direction. The element 13 of the synthetic resin may be injection molded and attached to one side edge of the fastener tape 12. When the fastener element 13 is engaged, the first side element 13a attached to one zipper tape 12 and the second side element 13b attached to the other zipper tape 12 are alternately arranged in a straight line.

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

The element removing device 30 has a die 31 and a punch 32. By moving the mold 31 or the punch 32 toward the fastener chain 10, the plurality of fastener elements 13, that is, the element rows of the space forming portion 15 of the fastener chain 10, are removed from the fastener tape 12. Thereby, as shown in FIG. 3, the space 16 in which the fastener element 13 does not exist is formed in the fastener chain 10.

The detecting device 60 has a gear 61 and an encoder 62. The gear 61 meshes with the element 13 of the fastener chain 10, and the gear 61 rotates by the transfer of the fastener chain 10. The encoder 62 outputs a signal in units of a predetermined rotation angle of the gear 61, for example, every time one element 13 passes. The signal of the output of the encoder 62 is sent to the control device 63. The control device 63 detects the amount of transfer of the fastener chain 10 by the signal of the encoder 62.

FIG. 4 is a view showing an open/close state at the time of completion of the fastener chain 10 of the present embodiment. Fig. 5 is a cross-sectional view taken along line V-V of Fig. 4;

As shown in FIG. 4, the direction in which the element rows 13 are provided in the longitudinal direction of the fastener chain 10 is set to the up-down direction, and the direction in which the slider 5 is slid and the left-right element row 13 is engaged is the upper direction U, The direction of separation is set to the downward direction D. Further, the left-right direction is a direction perpendicular to the surface level of the fastener chain 10 and perpendicular to the vertical direction, and the right direction of the paper surface in FIG. 4 is R, and the left direction is L. In addition, as shown in FIG. 5, the direction perpendicular to the surface defined by the up-down direction and the left-right direction is the front-back direction, and the surface side where the slider of the slider 5 of the fastener chain 10 exists is the front side Hs, and it is set. The opposite side is set to the back side Bs.

The zipper tape 12 has a belt main body portion 121 and a belt side edge portion 122 that is connected to one side edge of the belt main body portion 121, and is formed thicker in the front and back direction than the belt main body portion 121, and is in the up and down direction. A plurality of fastener elements 13 are independently mounted.

As shown in FIG. 5, the element 13 has a front side portion 131, a back side portion 132, a mounting portion 133, and an engaging portion 134. The fastener element 13 is formed, for example, by using a synthetic resin such as polyamine, polyacetal, polypropylene, or polybutylene terephthalate, and is formed on the belt side edge portion 122 of the fastener tape 12.

The front side portion 131 is disposed on the front side of the fastener tape 12, and is vertically symmetrical with respect to the center line HL in the left-right direction as viewed from the front side in FIG. 4, and the center line VL in the up-down direction is used as a reference as shown in FIG. A portion of a substantially oblong shape that is bilaterally symmetrical is formed. The front side portion 131 is preferably formed in a substantially hemispherical shape that is curved as a whole as viewed from the vertical direction and the left-right direction.

In addition, the front side portion 131 can have any shape such as a circular shape or an elliptical shape as long as it has excellent design properties when viewed from the front side and has no corner portion and can secure the flexibility of the fastener chain 10 .

The back side portion 132 is disposed on the back side of the fastener tape 12, and is a portion that is vertically symmetrical with respect to the center line HL in the left-right direction shown in FIG. 3 as viewed from the back direction. The portion of the back side portion 132 that is furthest from the zipper tape 12 can also be formed as a flat surface.

The attachment portion 133 is formed on one side in the left-right direction between the front side portion 131 and the back side portion 132. The attachment portion 133 is defined by a groove having a shape corresponding to the belt main body portion 121 and the belt side edge portion 122. The attachment portion 133 is fixed to a predetermined position of the belt side edge portion 122 in a state in which the belt side edge portion 122 is inserted.

The engaging portion 134 is formed on the other side portion in the left-right direction between the front side portion 131 and the back side portion 132. The engaging portion 134 is defined by a groove of a shape in which the side edge portion 122 of the other fastener tape 12 that can face each other is inserted. The engaging portion 134 is inserted into the belt side edge portion 122 of the other fastener tape 12 facing each other. A gap d is formed between the upper end surface 134a of the engaging portion 134 and the upper surface 121a of the belt main body portion 121. Here, in the present embodiment, in FIG. 4, the first side element 13a of the element 13 that is engaged with each other is different in the left direction L side from the zipper tape to which the first side element 13a is attached. A belt d is formed between the belt main body portions 121 of the fastener tape, and the second side fastener element 13b has a belt main body portion of the other fastener tape different from the fastener tape having the second side fastener element 13b on the right side R side thereof. A gap d is formed between 121.

Fig. 6 is a plan view of the positioning device of the embodiment.

The positioning device 40 and the positioning device 50 have a first positioning device 40 disposed on the upstream side and a second positioning device 50 disposed on the downstream side.

First, the first positioning device 40 will be described.

As shown in FIG. 6, the first positioning device 40 positions the element rows on the upstream side of the fastener chain 10 adjacent to the space forming portion 15. The first positioning device 40 includes a first positioning member 41, a first operating lever 42, and a first detecting unit 43.

The first positioning member 41 positions the element row on the upstream side of the fastener chain 10 adjacent to the space forming portion 15 in the chain transfer direction.

The first positioning member 41 is disposed in parallel with the surface of the fastener tape 12 on the side in the direction perpendicular to the chain transfer direction with respect to the fastener chain 10. The first positioning member 41 is supported by a first guiding portion 44 fixed to a frame (not shown), and the first positioning member 41 advances and retreats with respect to the element 13 .

If the first positioning member 41 is advanced, the first positioning member 41 approaches the element 13 . If the first positioning member 41 retreats, the first positioning member 41 is spaced apart from the element 13 .

The first guide portion 44 has a one side guide 44a and the other side guide 44b, and the one side guide 44a is in contact with one side surface 41a of the first positioning member 41 on the side in the chain transfer direction. The other side guide 44b is in contact with the other side surface 41b of the other side of the first positioning member 41 in the chain transfer direction.

7(a) and 7(b) show a part of the front end side of the first positioning member 41 of the present embodiment. Fig. 7(a) is a plan view, and Fig. 7(b) is a side view. 8(a) and 8(b) are enlarged views of the front end of the first positioning member 41 of the present embodiment. Fig. 8(a) is a plan view, and Fig. 8(b) is a side view.

The first positioning member 41 has a first thin portion 41c formed on the front end side facing the element 13 . The first thin portion 41c protrudes from the vicinity of the front side Hs of the first positioning member 41 toward the element 13 . The length of the first thin portion 41c in the protruding direction is preferably the same as or greater than the width of the fastener tape 12. Thereby, the first thin portion 41c of the first positioning member 41 can protrude so as to avoid the fastener tape 12. Therefore, the device can be miniaturized. A first stopper 45 is provided at a portion of the front end of the first thin portion 41c that faces the element 13 .

The first stopper 45 protrudes toward the element 13 . A first upstream side chamfered portion 45a is formed at an upstream end portion of the first stopper 45. A first downstream side chamfered portion 45b is formed at a downstream end portion of the first stopper 45. A pressing portion 45c is formed between the first upstream side chamfered portion 45a and the first downstream side chamfered portion 45b.

The pressing portion 45c is defined by a slit formed on the front side Hs of the first stopper 45. The pressing portion 45c of the present embodiment has an insertion portion 45d inserted into the first gap d1 formed between the upper end surface 134a of the engaging portion 134 of the element 13 and the upper surface 121a of the belt main body portion 121; and the contact portion 45e is in contact with the element 13 when the insertion portion 45d is inserted. The insertion portion 45d is located closer to the element side than the contact portion 45e. Further, the lower surface of the insertion portion 45d faces the front side of the fastener tape. Here, the gap d on the upstream side of the space forming portion 15 is referred to as a first gap d1.

The insertion portion 45d is a plate-shaped portion that is thinner than the other portions of the first stopper 45. The contact portion 45e is a wall-shaped portion that rises from the insertion portion 45d.

The first stopper 45 presses the element 13 of the element row of the upstream side of the fastener chain 10 adjacent to the space forming portion 15. Then, the element row of the upstream side adjacent to the space forming portion 15 of the fastener chain 10 is positioned.

Specifically, the insertion portion 45d shown in FIGS. 8(a) and 8(b) is inserted between the upper end surface 134a of the engaging portion 134 formed in the element 13 and the upper surface 121a of the belt main body portion 121. In the gap d1, the contact portion 45e is positioned in contact with the surface on the upstream side and the surface on the downstream side of the element 13 to position the upstream side of the fastener chain 10. Therefore, the contact portion 45e is preferably formed corresponding to the shape of the element 13. The contact portion 45e preferably has an arc shape.

The first positioning member 41 is advanced to the first position by the force applying unit 46. If the first positioning member 41 is in the first position, the insertion portion 45d of the first stopper 45 is inserted into the first gap d1. Moreover, the first positioning member 41 is retracted to the second position by the first holding unit 47 against the urging force of the first urging unit 46, and is held at the second position. If the first holding unit 47 is released from the hold, the first positioning member 41 is moved to the first position by the first force applying unit 46. That is, the first holding unit 47 operates in the hold state and the hold release state.

In the present embodiment, the first operating lever 42 is attached to the rear end of the first positioning member 41 on the opposite side of the element 13 . The first biasing unit 46 has a first spring seat 46a of a bracket (not shown), and a first compression coil spring 46b disposed between the first spring seat 46a and the first operating lever 42. The first compression coil spring 46b gives the first positioning member 41 a potential energy in the direction of the element 13, that is, the advancing direction.

The first holding unit 47 has a first air cylinder 47a that is attached to the one side guide 44a of the first guide portion 44 in the front-rear direction, and a first piston 47b that is supported by the first operating lever 42 and the other along the first cylinder The cylinder 47a moves inside.

Thus, if the first piston 47b of the first cylinder 47a is extended, the first piston 47b presses the first operating lever 42 rearward, and the first operating lever 42 contracts the first compression coil spring 46b. Therefore, the first positioning member 41 retreats, and the first stopper 45 of the first positioning member 41 is in the second position spaced apart from the element 13 .

Further, if the first piston 47b of the first cylinder 47a is contracted, the first piston 47b is spaced apart from the first operating lever 42, the first compression coil spring 46b is extended, and the first operating lever 42 is moved toward the element 13, thus A positioning member 41 is advanced.

The first detecting unit 43 detects that the first positioning member 41 is moved to the first position. In the present embodiment, the first proximity switch 43a is attached to the one side guide 44a of the first guide portion 44. The first proximity switch 43a faces the first operating lever 42, and detects that the first operating lever 42 that has advanced by the extension of the first compression coil spring 46b approaches a predetermined distance with respect to the first proximity switch 43a. If it is detected that the first operating lever 42 is connected to the prescribed distance, the first proximity switch 43a operates and outputs a signal.

If the first operation rod 42 approaches the first proximity switch 43a by a prescribed distance, the insertion portion 45d of the first positioning member 41 is inserted into the gap d, and the first positioning member 41 is moved to the first position. That is, the first proximity switch 43a is moved to the first position by the first positioning member 41, the insertion portion 45d is inserted into the gap d, the contact portion 45e is in contact with the element 13, and the pressing portion 45c of the first stopper 45 is confirmed to be pressed. The element 3, thus outputting a signal.

The signal of the output of the first proximity switch 43a is sent to the control device 63 shown in FIG. The control device 63 controls the operation of each device in association with the signal of the second proximity switch 53a of the second positioning device 50, which will be described later. For example, the signal of the first proximity switch 43a and the signal of the second proximity switch 53a are transmitted to the control device 63, and the control device 63 controls the operation of the chain transfer device 20, the element removing device 30, the cylinder 47a, and the cylinder 57a.

Next, the second positioning device 50 will be described.

As shown in FIG. 6, the second positioning device 50 positions the element rows on the downstream side of the fastener chain 10 adjacent to the space forming portion 15. The second positioning device 50 has the same configuration as the first positioning device 40, and includes a second positioning member 51, a second operating lever 52, and a second detecting unit 53 having a second proximity switch 53a.

The second positioning member 51 positions the element side of the downstream side of the fastener chain 10 adjacent to the space forming portion 15 in the chain conveying direction.

The second positioning member 51 is disposed in parallel with the surface of the fastener tape 12 on the side in the direction perpendicular to the chain transfer direction with respect to the fastener chain 10. The second positioning member 51 is supported by the second guide portion 54 fixed to the frame (not shown), and is advanced and retracted with respect to the element 13 .

If the second positioning member 51 is advanced, the second positioning member 51 approaches the element 13 . If the second positioning member 51 retreats, the second positioning member 51 is spaced apart from the element 13 .

The second guide portion 54 has a one side guide 54a and a other side guide 54b, and the one side guide 54a is in contact with one side surface 51a of the second positioning member 51 on the side in the chain transfer direction. The other side guide 54b is in contact with the other side surface 51b of the second positioning member 51 on the other side in the chain transfer direction.

9(a) and 9(b) show a part of the distal end side of the second positioning member 51 of the present embodiment. Fig. 9(a) is a plan view, and Fig. 9(b) is a side view. FIGS. 10(a) and 10(b) are enlarged views of the front end of the second positioning member 51 of the present embodiment. Fig. 10(a) is a plan view, and Fig. 10(b) is a side view.

The second positioning member 51 has a second thin portion 51c formed on the front end side facing the element 13 . The second thin portion 51c protrudes from the vicinity of the front side Hs of the second positioning member 51 toward the element 13 . The length of the second thin portion 51c in the protruding direction is preferably the same as or greater than the width of the fastener tape 12. Thereby, the second thin portion 51c of the second positioning member 51 can protrude so as to avoid the fastener tape 12. Therefore, the device can be miniaturized. A second stopper 55 is provided at a portion of the front end of the second thin portion 51c that faces the element 13 .

The second stopper 55 has a claw portion 55a that protrudes toward the element 13 and a second downstream side chamfered portion 55b that is formed at the downstream end portion of the claw portion 55a.

The claw portion 55a is defined by a slit formed on the front side Hs of the second stopper 55. The claw portion 55a of the present embodiment is inserted into the second gap d2 formed between the upper end surface 134a of the engaging portion 134 of the element 13 and the upper surface 121a of the belt main body portion 121. The claw portion 55a is a plate-shaped portion that is formed thinner than the other portions of the second stopper 55. The claw portion 55a is located closer to the element side than the wall-shaped portion formed by cutting the front side Hs of the second stopper 55. Further, the lower surface of the claw portion 55a faces the front side of the fastener tape.

The second stopper 55 is inserted into the second gap d2 formed on the upper end surface 134a of the engaging portion 134 of the element 13 of the element row on the downstream side of the fastener chain 10 adjacent to the space forming portion 15. Between the upper surface 121a of the belt main body portion 121, the element row of the downstream side of the fastener chain 10 adjacent to the space forming portion 15 is positioned. Here, the gap d on the downstream side of the space forming portion 15 is referred to as a second gap d2.

The second positioning member 51 is advanced to the first position by the second force applying unit 56. If the second positioning member 51 is in the first position, the claw portion 55a of the second stopper 55 is inserted into the second gap d2. Moreover, the second positioning member 51 is retracted to the second position by the second holding unit 57 against the urging force of the second urging unit 56, and is maintained at the second position. If the second holding unit 57 is released from the hold, the second positioning member 51 is moved to the first position by the second force applying unit 56. That is, the second holding unit 57 operates in the hold state and the hold release state.

In the present embodiment, the second operation lever 52 is attached to the rear end of the second positioning member 51 opposite to the element 13 . The second biasing unit 56 has a second spring seat 56a of a bracket (not shown) and a second compression coil spring 56b provided between the second spring seat 56a and the second operating lever 52. The second compression coil spring 56b applies the potential energy to the second positioning member 51 in the direction of the element 13, that is, the advancing direction.

The second holding unit 57 has a second cylinder 57a, the other side guide 54b attached to the second guiding portion 54 in the front-rear direction, and a second piston 57b, one of which is supported by the second operating lever 52, and the other can be along The inside of the second cylinder 57a moves.

Thereby, if the second piston 57b of the second cylinder 57a is extended, the second piston 57b presses the second operating lever 52 rearward, and the second operating lever 52 contracts the second compression spring 56b. Therefore, the second positioning member 51 retreats, and the second stopper 55 of the second positioning member 51 is in the second position spaced apart from the element 13.

Further, if the second piston 57b of the second cylinder 57a is contracted, the second piston 57b is spaced apart from the second operating lever 52, the second compression spring 56b is extended, and the second operating lever 52 is moved toward the element 13, thus the second The positioning member 51 is advanced.

The second detecting unit 53 detects that the second positioning member 51 is moved to the first position. In the present embodiment, the second proximity switch 53a is attached to the one side guide 54a of the second guide portion 54. The second proximity switch 53a faces the second operating lever 52, and detects that the second operating lever 52 that has advanced by the extension of the second compression spring 56b approaches a predetermined distance with respect to the second proximity switch 53a. If it is detected that the second operating lever 52 is close to the prescribed distance, the second proximity switch 53a operates and outputs a signal.

If the second operating lever 52 approaches a predetermined distance with respect to the second proximity switch 53a, the claw portion 55a of the second positioning member 51 is inserted into the second gap d2, and the second positioning member 51 is moved to the first position. That is, the second proximity switch 53a confirms that the second positioning member 51 is moved to the first position and the claw portion 55a is inserted into the gap d, thereby outputting a signal.

The signal of the output of the second proximity switch 53a is sent to the control device 63 shown in FIG. The control device 63 controls the operation of each device in association with the signal of the first proximity switch 43a of the first positioning device 40. For example, the signal of the first proximity switch 43a and the signal of the second proximity switch 53a are transmitted to the control device 63, and the control device 63 controls the operation of the chain transfer device 20, the element removing device 30, the cylinder 47a, and the cylinder 57a.

Next, the positioning action of the first positioning device 40 and the second positioning device 50 will be described.

Fig. 11 is an explanatory diagram of an operation state of the positioning device of the embodiment. Fig. 12 is an explanatory diagram of an operation state of the positioning device of the embodiment. Fig. 13 is an explanatory diagram of an operation state of the positioning device of the embodiment.

The chain transfer device 20 shown in Fig. 1 is driven to transfer the fastener chain 10 in the downstream direction along the chain transfer path. At this time, as shown in FIG. 6, the piston 47b and the piston 57b of each cylinder 47a and cylinder 57a are extended. Moreover, the first positioning member 41 and the second positioning member 51 are maintained in the second position.

The detection device 60 detects the amount of transfer of the fastener chain 10, and the drive of the chain transfer device 20 becomes low at the time when the amount of transfer of the fastener chain 10 reaches a predetermined value. At this time, the fastener chain 10 causes the space forming portion 15 to be located near the lower portion of the punch 32 of the element removing device 30. In the present embodiment, the length of the punch 32 of the element removing device 30 in the chain transfer direction is the same as the length of the space 16 of the fastener chain 10.

In a state where the fastener chain 10 is transferred at a low speed, as shown in FIG. 11, each of the cylinders 47a of the first positioning device 40 and the second positioning device 50, the pistons 47b of the cylinders 57a, and the pistons 57b are contracted, and the pistons 47b, The piston 57b is spaced apart from the first operating lever 42 and the second operating lever 52. Thereby, the first positioning member 41 and the second positioning member 51 advance by the respective compression springs 46b and the compression springs 56b.

At this time, as long as the element rows of the zipper chain 10 are in the correct position, as shown in FIG. 13, the first stopper 45 of the first positioning member 41 and the second stopper 55 of the second positioning member 51 are inserted into the first position. In the gap d1 and the second gap d2, the first gap d1 is formed on the upper end surface 134a of the engaging portion 134 of the fastener element 13 on the upstream side adjacent to the space forming portion 15 of the fastener chain 10, and the upper surface of the belt main body portion 121. Between the 121a, the second gap d2 is formed between the upper end surface 134a of the engaging portion 134 of the fastener element 13 on the downstream side of the fastener chain 10 adjacent to the space forming portion 15 and the upper surface 121a of the belt main body portion 121.

Thereby, the first operating lever 42 of the first positioning device 40 approaches a predetermined distance of the first proximity switch 43a, and the second operating lever 52 of the second positioning device 50 approaches a predetermined distance of the second proximity switch 53a, the first proximity switch 43a and the first The two proximity switches 53a output signals, and thus it is possible to know that the element rows of the fastener chain 10 are in the correct position. At this point of time, the driving of the chain transfer device 20 is stopped.

That is, if the first positioning member 41 of the first positioning device 40 is advanced to the first position and the first stopper 45 is inserted into the first gap d1, the first proximity switch 43a outputs a signal. If the second positioning member 51 of the second positioning device 50 is advanced to the first position and the second stopper 55 is inserted into the second gap d2, the second proximity switch 53a outputs a signal.

When the first positioning member 41 and the second positioning member 51 are advanced by the compression spring 46b and the compression spring 56b, if the position of the element row of the fastener chain 10 is displaced to be in an incorrect position, the first positioning member 41 is As shown in FIG. 11, the first stopper 45 and the second stopper 55 of the second positioning member 51 abut against the side of the element 13 where the first gap d1 and the second gap d2 are not present, and cannot be moved to The first position, and thus the first stop 45 and the second stop 55 cannot be inserted into the first gap d1 and the second gap d2.

Even if the element row of the downstream side of the fastener chain 10 adjacent to the space forming portion 15 is in the correct position, the position of the element row of the upstream side of the fastener chain 10 adjacent to the space forming portion 15 is offset and is incorrect. The position of the first positioning member 41 cannot be moved to the first position, so that the second operating lever 52 is in contact with the first operating lever 42, and the second positioning member 51 cannot be moved to the first position. That is, when the first positioning member 41 is not in the first position, the second positioning member 51 is restricted from moving toward the first position by the first operating lever 42 and the second operating lever 52.

Therefore, the first operating lever 42 of the first positioning device 40 and the second operating lever 52 of the second positioning device 50 are not close to the first proximity switch 43a and the second proximity switch 53a by a predetermined distance, and thus the first proximity switch 43a and the first The two proximity switches 53a do not output a signal.

In this state, the first stopper 45 and the second stopper 55 abut against the side of the element 13 where the first gap d1 and the second gap d2 are not present, and cannot move to the first position, and thus the chain transfer device The drive of 20 does not stop, and the zipper chain 10 is slightly transferred in the downstream direction at a low speed. Further, although the first stopper 45 abuts on the side where the gap d does not exist in the element 13 from the second stopper 55, the front end side of the first stopper 45 facing the element 13 is different from the insertion portion 45d. The portion formed is thick, so that the fastener element 13 is not easily damaged.

Thereby, as shown in FIG. 12, the first stopper 45 of the first positioning member 41 is inserted into the first gap d1, and the element row on the upstream side of the space forming portion 15 is positioned. Further, the first operating lever 42 approaches the predetermined distance of the first proximity switch 43a and the first proximity switch 43a operates to output a signal, thereby confirming that the positioning of the element row on the upstream side adjacent to the space forming portion 15 has been performed. When the first positioning member 41 is in the first position, it is not restricted by the first operating lever 42 and the second operating lever 52, and the second positioning member 51 can be moved to the first position.

However, as shown in FIG. 12, in the case where the position of the element row on the downstream side adjacent to the space forming portion 15 of the fastener chain 10 is shifted, the second block of the second positioning member 51 of the second positioning device 50 The block 55 abuts on the side of the fastener element 13 on the downstream side adjacent to the space forming portion 15 of the fastener chain 10 where the second gap d2 does not exist. That is, the second stopper 55 is not inserted into the second gap d2, and thus the second proximity switch 53a of the second positioning device 50 does not operate, so that no signal is output.

In this state, the second stopper 55 abuts on the side of the element 13 where the second gap d2 does not exist, and cannot move to the second position, so that the driving of the chain transfer device 20 is not stopped, and the fastener chain 10 is lowered at a low speed. Transfer slightly in the downstream direction.

The element row of the upstream side of the fastener chain 10 adjacent to the space forming portion 15 is held by the first stopper 45 of the first positioning member 41, and the element row is not transferred in the downstream direction.

Therefore, as shown in Fig. 13, the fastener tape 12 on the downstream side of the fastener element held by the first positioning member 41 is elongated in the fastener tape 12, and the chain on the downstream side of the fastener chain 10 adjacent to the space forming portion 15 is formed. The tooth row is slightly moved in the downstream direction with respect to the second stopper 55 of the second positioning member 51, and the second stopper 55 is inserted into the second gap d2. Thereby, the element row of the downstream side of the fastener chain 10 adjacent to the space formation part 15 is positioned.

At the same time, the second positioning member 51 moves to the first position, and the second operating lever 52 approaches the second proximity switch 53a by a predetermined distance, and the second proximity switch 53a operates to output a signal.

As shown in FIG. 13, the element row on the upstream side and the element row on the downstream side of the fastener chain 10 adjacent to the space forming portion 15 are respectively positioned, and the first proximity switch 43a and the second proximity switch 53a respectively operate, if output Signals, then each signal is sent to control device 63. At this point of time, the driving of the chain transfer device 20 is stopped.

After stopping the chain transfer device 20, the control device 63 drives the chain transfer device 20 in the reverse direction for a short period of time, and transfers the fastener chain 10 slightly in the upstream direction to relax the tension of the fastener chain 10.

The control device 63 operates the element removing device 30 to remove the element rows of the space forming portion 15 of the fastener chain 10, thereby forming the space 16 as shown in FIG.

In this way, the element row on the upstream side and the element row on the downstream side of the fastener chain 10 adjacent to the space forming portion 15 are positioned, and in this state, the element removing device 30 is operated to form the space 16, whereby the fastener chain 10 is obtained. The element at the upstream end and the downstream end of the space adjacent to the space 16 are not damaged and do not remain in a semi-defective state, and the element 13 in a good state can be retained to form the space 16.

In the present embodiment, the first urging unit 46 and the second urging unit 56 are the first compression coil spring 46b and the second compression coil spring 56b, but are not limited thereto. For example, the first positioning member 41 and the second positioning member 51 may be pressed in the advancing direction by elongating the cylinder, and an external force in the backward direction may be applied to the first positioning member 41 and the second positioning member 51 to contract the cylinder. Moreover, the cylinder and the compression coil spring can also be combined. In addition, it can also be used as a tension coil spring.

In the present embodiment, the first holding unit 47 and the second holding unit 57 are the first cylinder 47a and the second cylinder 57a, but are not limited thereto. For example, the rack gear can be attached to the first positioning member 41 and the second positioning member 51 by using a pinion and a rack that are rotated by a motor. Further, the nut may be attached to the first positioning member 41 and the second positioning member 51 by using a feed screw and a nut that are rotated by a motor. Further, the cam follower may be attached to the first positioning member 41 and the second positioning member 51 by using a cam and a cam follower.

In the present embodiment, the first detecting unit 43 and the second detecting unit 53 are the first proximity switch 43a and the second proximity switch 53a, but are not limited thereto. For example, it can also be a contact switch such as a limit switch.

As described above, according to the positioning device of the fastener chain of the present embodiment, the positioning of the fastener chain 10 is performed, and the fastener chain 10 has the first side fastener 13a to be attached to one fastener tape 12 and the other fastener tape when engaged. The second side fastener elements 13b of 12 are alternately arranged in a straight line, and the positioning device of the zipper chain comprises a first positioning device 40 and a second positioning device 50, the first positioning device 40 comprising: The positioning member 41 is an element 13 of an element row on the upstream side in the chain transfer direction adjacent to the space forming portion 15 of the fastener chain 10, and a belt main body of another zipper tape different from the fastener tape to which the element 13 is attached The first gap d1 of the portion 121 is inserted into the first stopper 45 to perform positioning; and the first detecting unit 43 detects that the first stopper 45 of the first positioning member 41 is inserted into the first gap d1, and the second positioning device The second positioning member 51 includes a fastener element 13 of the element row on the downstream side in the chain transfer direction adjacent to the space forming portion 15 of the fastener chain 10, and another fastener different from the fastener tape to which the fastener element 13 is attached. The main body portion 12 of the zipper tape The second gap d2 of 1 is inserted into the second stopper 55 to perform positioning; and the second detecting unit 53 detects that the second stopper 55 of the second positioning member 51 is inserted into the second gap d2, and thus can be made to have a granular shape The fastener chain of the fastener element is correctly positioned and the damage of the fastener element 13 can be prevented.

Further, according to the positioning device for the fastener chain of the present embodiment, the first stopper 45 has the pressing portion 45c defined by the slit formed on the front side Hs, and the pressing portion 45c includes the insertion portion 45d inserted into the first gap d1; Since the contact portion 45e comes into contact with the element 13 when the insertion portion 45d is inserted, the element 13 can be pressed and the positioning can be performed more accurately.

Further, according to the positioning device for the fastener chain of the present embodiment, the contact portion 45e is a wall-shaped portion that rises from the insertion portion 45d, and the first stopper 45 is inserted into the first gap d1 and faces the element 13 Since the surface on the upstream side and the surface facing the downstream side are in contact with each other, the element 13 can be pressed more firmly, and positioning can be performed more accurately.

Further, according to the positioning device for the fastener chain of the present embodiment, the first upstream side chamfered portion 45a is formed at the upstream side end portion of the first stopper 45, and the first end portion of the first stopper 45 is formed at the downstream end portion. Since the downstream side chamfered portion 45b is inserted, when the insertion portion 45d is inserted, collision of the first stopper 45 with the adjacent element 13 can be avoided.

Further, according to the positioning device for the fastener chain of the present embodiment, the second stopper 55 has the claw portion 55a which is defined by the slit formed on the front side Hs and inserted into the second gap d2, thereby enabling Position correctly.

Further, according to the positioning device of the fastener chain of the present embodiment, the second downstream side chamfered portion 55b is formed at the downstream end portion of the second stopper 55, so that the first stopper 45 and the adjacent element 13 can be avoided. collision.

Further, the space forming apparatus for the fastener chain according to the present embodiment includes: the positioning device of the fastener chain; the element removing device 30, which performs the detecting operation by the first detecting unit 43 and the second detecting unit 53, and the zipper The element row of the chain forming portion 15 of the chain 10 is removed; and the control device 63 operates the element removing device 30, so that the zipper chain having the granular element can be correctly positioned and can be correctly positioned in the zipper chain Form a space.

Further, various embodiments of the present invention have been described. However, the present invention is not limited to the embodiments, and embodiments configured by modifying the configuration of each embodiment or an appropriate combination are also within the scope of the invention.

1‧‧‧Space forming device

10‧‧‧ zipper chain

11‧‧‧ zipper chain

12‧‧‧ zipper belt

13‧‧‧Legs

13a‧‧‧First side chain

13b‧‧‧Second side chain

15‧‧‧ Space forming parts

16‧‧‧ Space

20‧‧‧Chain transfer device

21‧‧‧Drive roller

22‧‧‧Pinch roller

30‧‧‧Feel removal device

31‧‧‧Mold

32‧‧‧ Punch

40‧‧‧First positioning device

41‧‧‧First positioning member

41a, 51a‧‧‧ side

41b, 51b‧‧‧other side

41c‧‧‧First thin wall

42‧‧‧First operating lever

43‧‧‧First detection unit

43a‧‧‧First proximity switch

44‧‧‧First Guide

44a‧‧‧One side guide

44b‧‧‧Other side guide

45‧‧‧First stop

45a‧‧‧First upstream side chamfering

45b‧‧‧First downstream side chamfering

45c‧‧‧ Pressing Department

45d‧‧‧Insert Department

45e‧‧‧Contacts

46‧‧‧ force unit

46a‧‧‧First spring seat

46b‧‧‧Compression spring coil

47‧‧‧keeping unit

47a, 57a‧‧‧ cylinder

47b, 57b‧‧‧Piston

50‧‧‧Second positioning device

51‧‧‧Second positioning member

51c‧‧‧Second thin wall

52‧‧‧Second operating lever

53‧‧‧Second detection unit

53a‧‧‧Second proximity switch

54‧‧‧Second guidance

54a‧‧‧One side guide

54b‧‧‧Other side guide

55‧‧‧second stop

55a‧‧‧ claws

55b‧‧‧Second downstream side chamfering

56‧‧‧Power unit

56a‧‧‧Second spring seat

56b‧‧‧Compressed coil spring

57‧‧‧Holding unit

60‧‧‧Detection device

61‧‧‧ Gears

62‧‧‧Encoder

63‧‧‧Control device

121‧‧‧With main body

121a‧‧‧With the upper surface of the main body

122‧‧‧With side edge

131‧‧‧Side side

132‧‧‧ Back side

133‧‧‧Installation Department

134‧‧‧Care Department

134a‧‧‧ upper end of the engagement part

Bs‧‧‧ Back side

D‧‧‧ gap

D1‧‧‧ first gap

D2‧‧‧second gap

Hs‧‧‧ side

HL‧‧‧ direction center line

VL‧‧‧Up and down direction centerline

D‧‧‧down direction

L‧‧‧Left direction

R‧‧‧Right direction

U‧‧‧Up direction

Arrow a‧‧‧ downstream direction

Arrow b‧‧‧ upstream direction

Fig. 1 is a schematic front view of a space forming apparatus of the present embodiment. Fig. 2 is a plan view of the fastener chain of the embodiment. Fig. 3 is a plan view of the fastener chain of the embodiment in which a space is formed. FIG. 4 is a view showing an open/close state at the time of completion of the fastener chain 10 of the present embodiment. Fig. 5 is a cross-sectional view taken along line V-V of Fig. 4; Fig. 6 is a plan view of the positioning device of the embodiment. 7(a) and 7(b) show a part of the distal end side of the first positioning member of the present embodiment. 8(a) and 8(b) are enlarged views of the front end of the first positioning member of the present embodiment. 9(a) and 9(b) show a part of the distal end side of the second positioning member of the present embodiment. 10(a) and 10(b) are enlarged views of the front end of the second positioning member of the embodiment. Fig. 11 is an explanatory diagram of an operation state of the positioning device of the embodiment. Fig. 12 is an explanatory diagram of an operation state of the positioning device of the embodiment. Fig. 13 is an explanatory diagram of an operation state of the positioning device of the embodiment.

Claims (9)

A positioning device for a zipper chain, positioning a zipper chain (10), the zipper chain (10) having an element (13), the fastener element (13) being attached to one of the zipper tapes when engaged (12) The first side element (13a) is alternately arranged on the straight line with the second side element (13b) of the other zipper tape (12), and the positioning device of the zipper chain is characterized by: a positioning device (40) and a second positioning device (50), the first positioning device (40) comprising: a first positioning member (41), and a space forming portion (15) of the zipper chain (10) The first gap of the element body (121) of the element row on the upstream side of the adjacent chain transfer direction and the tape main body part (121) of the other fastener tape different from the fastener tape to which the element (13) is attached (d1) inserting the first stopper (45) to perform positioning; and a first detecting unit (43), detecting that the first stopper (45) of the first positioning member (41) is inserted into the first a gap (d1), the second positioning device (50) comprises: a second a position member (51), an element (13) of an element row on a downstream side of a chain transfer direction of the fastener chain (10) adjacent to the space forming portion (15), and a fastener element attached thereto a second gap (d2) of the belt main body portion (121) of the other zipper tape of the other zipper tape is inserted into the second stopper (55) to perform positioning; and a second detecting unit (53) detects the The second stopper (55) of the second positioning member (51) is inserted into the second gap (d2). The positioning device for a fastener chain according to claim 1, wherein: the first stopper (45) has a pressing portion (45c) defined by a slit formed on a front side (Hs), the pressing portion (45c) includes: an insertion portion (45d) inserted into the first gap (d1); and a contact portion (45e) that comes into contact with the element (13) when the insertion portion (45d) is inserted. The positioning device for a fastener chain according to claim 2, wherein: the contact portion (45e) is a wall-shaped portion rising from the insertion portion (45d) at the first stopper ( 45) is inserted into the first gap (d1) in contact with the surface facing the upstream side of the element (13) and the surface facing the downstream side. The positioning device of the fastener chain according to Item 2 or 3, wherein: the first upstream side chamfering portion (45a) is formed at an upstream side end portion of the first stopper (45), A first downstream side chamfered portion (45b) is formed at a downstream side end portion of the first stopper (45). The locating device for a fastener chain according to any one of claims 1 to 3, wherein: the second stopper (55) has a claw portion (55a), and the claw portion (55a) is The slit formed on the front side (Hs) is defined and inserted into the second gap (d2). A positioning device for a fastener chain according to claim 4, wherein: the second stopper (55) has a claw portion (55a), and the claw portion (55a) is formed by a slit formed on the front side (Hs) Delimited, and inserted into the second gap (d2). A positioning device for a fastener chain according to claim 5, wherein: a second downstream side chamfered portion (55b) is formed at a downstream end portion of the second stopper (55). The positioning device for a fastener chain according to claim 6, wherein: a second downstream side chamfered portion (55b) is formed at a downstream end portion of the second stopper (55). A space forming device for a zipper chain, comprising: a positioning device for a zipper chain according to any one of claims 1 to 8; an element removing device (30), by the a detecting unit (43) and the second detecting unit (53) perform a detecting operation to remove an element row of the space forming portion (15) of the zipper chain (10); and a control device (63) The element removing device (30) is operated.