CN110973774A - Double-slider threading machine and method - Google Patents

Abstract

The invention discloses a machine for penetrating double zipper sliders, which comprises a first zipper slider conveying device, wherein the first zipper slider conveying device conveys a first zipper slider to a first zipper slider clamping groove, a second zipper slider conveying device conveys a second zipper slider to a second zipper slider clamping groove, and after the conveying of the zipper sliders is finished, the first zipper slider conveying device and the second zipper slider conveying device return to original positions. At this moment, the first zipper head placed in the first zipper head clamping groove and the second zipper head placed in the second zipper head clamping groove are turned upside down and are respectively fixed on the first lower die body and the second lower die body, the zipper combining parts (one ends of the meshed zippers) of the first zipper head and the second zipper head are close to each other and symmetrically arranged, and at this moment, the zipper tooth leading-out part of the first zipper leading groove is just aligned with the zipper entering part of the first zipper head, and the second zipper head can just penetrate into the second zipper head. The invention greatly improves the efficiency of pulling the head.

Description

Double-slider threading machine and method

Technical Field

The invention relates to the technical field of zipper manufacturing, in particular to a double-slider threading machine and a method.

Background

The zipper is widely applied in daily life due to the convenience of use. In the manufacturing process of the slide fastener, it is necessary to thread the slider to the teeth of the two fastener tapes to form the slide fastener structure. At present, one machine can only wear one zipper head on the zipper, and if two zipper heads are needed on one zipper, the zipper heads must be worn again, so that the process is complicated and the efficiency is low.

Disclosure of Invention

The invention mainly aims to provide a machine and a method for threading double pull heads, which can be used for uploading two pull heads on the same zipper at one time on one zipper threading machine, greatly improve the success rate of threading the pull heads and ensure the quality and the efficiency of threading the pull heads.

In order to achieve the purpose, the invention provides a double zipper head threading machine which comprises the following technical scheme

A frame;

a zipper belt conveying device arranged on the machine frame;

a knife expanding device which is movably arranged on the frame and used for expanding the zipper tape;

the lower die body comprises a first lower die body and a second lower die body which are movably arranged on the rack;

the first lower die body is sequentially provided with a first chain guide groove and a first zipper puller clamping groove communicated with the first chain guide groove along the conveying direction of the zipper strips; the first zipper guide groove is in a horn shape, the width of the first zipper guide groove is reduced along the conveying direction of the zipper tapes, and the first zipper guide groove comprises a zipper tooth leading-in part and a zipper tooth leading-out part; when the zipper head is placed in the first zipper head clamping groove, the zipper tooth leading-out part corresponds to the zipper leading-in part of the zipper head;

the second lower die body is sequentially provided with a second zipper puller clamping groove and a second zipper guide groove communicated with the second zipper puller clamping groove along the conveying direction of the zipper strips; the first zipper puller clamping groove and the second zipper puller clamping groove are symmetrically arranged;

the first zipper head conveying device is arranged on the rack and used for conveying the zipper heads into the first zipper head clamping groove one by one;

and the second zipper head conveying device is arranged on the rack and is used for conveying the zipper heads to the second zipper head clamping groove one by one.

In the technical scheme provided by the invention, the first zipper head conveying device conveys the first zipper head to the first zipper head clamping groove, the second zipper head conveying device conveys the second zipper head to the second zipper head clamping groove, and after the conveying of the zipper heads is finished, the first zipper head conveying device and the second zipper head conveying device return to the original positions. At this time, the first zipper head placed in the first zipper head clamping groove and the second zipper head placed in the second zipper head clamping groove are turned upside down and fixed on the first lower die body and the second lower die body respectively, the zipper combining parts (one ends of the meshed zippers) of the first zipper head and the second zipper head are close to each other and symmetrically arranged, and at this time, the zipper tooth leading-out part of the first zipper guiding groove is just aligned with the zipper entering part of the first zipper head. Then, the first lower mold body and the second lower mold body are driven by the cylinder to approach each other, and are lifted to be matched with the upper mold body. The spreader device spreads the fastener tapes, and the fastener tapes are changed from an engaged state to a separated state. The zipper strip conveying device drives the zipper strip to move forwards, zipper teeth of the separated zipper strip enter a first zipper guide groove through a first zipper guide groove zipper guide part, then the zipper teeth enter a first zipper leading part through the first zipper guide groove zipper guide part, and then the zipper strip is meshed again when the first zipper leading penetrating head is completed through the first zipper closing part of the first zipper leading. Since the zipper closing parts (one ends of the engaged zippers) of the first zipper puller and the second zipper puller are arranged close to each other and symmetrically, the zipper tapes after being engaged immediately enter the zipper closing part of the second zipper puller; then the zipper tape becomes a separated state again through the zipper entering part of the second zipper puller and the second zipper guide groove, and the two zipper pullers are penetrated at one time. When the zipper head is worn, the two zipper heads are symmetrically distributed on the zipper tape with opposite tails, and the zipper tape in the middle of the two zipper heads is in a meshed state.

In one embodiment, the first zipper puller clamping groove comprises a first head part and a first tail part, the first head part is used for placing the zipper entering part of the zipper puller, and the first tail part is used for placing the zipper closing part of the zipper puller; the second zipper puller clamping groove comprises a second head part and a second tail part, the second head part is used for placing a zipper entering part of the zipper puller, and the second tail part is used for placing a zipper closing part of the zipper puller; the first head portion, the first tail portion, the second tail portion and the second head portion are sequentially arranged along the conveying direction of the zipper tapes.

In one embodiment, the first chain guide groove, the first slider holding groove, the second slider holding groove, and the second chain guide groove are provided in this order along the conveying direction of the fastener tape.

In one embodiment, the second guide groove is formed in a horn shape, and the width of the second guide groove increases along the feeding direction of the fastener tape.

In one embodiment, a first zipper sub-chain is arranged in the middle of the first zipper guide groove and is arranged along the conveying direction of the zipper tapes.

In one embodiment, the second lower die body is further provided with a second branch chain, and the second branch chain is transversely arranged; the second branch chain is arranged behind the second chain guide groove and used for separating two chains of the zipper with the penetrating heads.

In one embodiment, the first lower mold body is further provided with a first pull tab fixing device for tensioning and fixing a pull tab of the zipper puller, and the second lower mold body is provided with a second pull tab fixing device for tensioning and fixing the pull tab of the zipper puller.

In addition, the invention also provides a method for threading the double zipper sliders, wherein the first zipper slider conveying device and the second zipper slider conveying device respectively convey one zipper slider to the first zipper slider clamping groove and the second zipper slider clamping groove at the same time;

the zipper tape is spread by the knife spreading device;

the upper die body and the lower die body are matched;

the separated zipper belts respectively enter a zipper entering part of a first zipper puller arranged in the first zipper puller clamping groove through the first zipper guide groove;

the zipper tape is closed at the zipper closing part of the first zipper head;

and the closed zipper tape passes through a gap between the first lower die body and the second lower die body, enters a zipper closing part of a second zipper puller arranged in the second zipper puller clamping groove, passes through the second zipper dividing chain, is separated, and is conveyed forwards through a zipper inlet part of the second zipper puller.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic top view of a double-slider threading machine according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic diagram illustrating a structure of a knife supporting device and an upper mold body according to an embodiment of the present invention;

fig. 4 is a schematic top view of the first and second slider conveying apparatuses according to the embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating a top view of a first bottom mold according to an embodiment of the present invention;

FIG. 6 is a schematic diagram illustrating a top view of a second bottom mold according to an embodiment of the present invention.

The reference numbers illustrate:

110. the zipper puller comprises a first lower die body, 111, a first pull tab fixing device, 112, a first guide chain groove, 113, a first puller clamping groove, 114, a first zipper dividing chain, 120, a second lower die body, 121, a second pull tab fixing device, 122, a second puller clamping groove, 123, a second guide chain groove, 124, a second zipper dividing chain, 200, an upper die body, 210, a cutter supporting device, 300, a zipper tape, 310, a first puller, 311, a zipper puller chain feeding part, 312, a zipper puller chain closing part, 320, a second puller, 410, a first puller conveying device, 420, a second puller conveying device, 500 and a zipper opening device.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 to 6, the present invention provides a machine for threading two zippers, which comprises a frame (not shown); a conveying device for the zipper tape 300 mounted on the frame; a knife supporting device 210 movably mounted on the frame and used for supporting the zipper tape 300; the upper die body 200 and the lower die body are mounted on the frame and used for forming a chain guide channel during die assembly, the lower die body comprises a first lower die body 110 and a second lower die body 120 which are movably mounted on the frame, and the first lower die body and the second lower die body 120 can move close to each other or move upwards to be mutually folded with the upper die body 200 under the driving of an air cylinder. In other embodiments, the first casing 110 and the second casing 120 may be fixed to each other and both may be fixedly disposed on the same base.

Referring to fig. 4 in detail, a first zipper head transfer device 410 installed on the frame for transferring zipper heads one by one into the first zipper head holding groove 113. And a second zipper head conveying device 420 mounted on the frame for conveying the zipper heads one by one into the second zipper head holding groove 122. The first lower mold body 110 is further provided with a first pull tab fixing device 111 for tensioning and fixing a pull tab of the zipper head, and the second lower mold body 120 is provided with a second pull tab fixing device 121 for tensioning and fixing a pull tab of the zipper head. When the first slider conveying device 410 conveys the first slider into the first slider clamping groove 113, the first tab fixing device 111 fixes the tab of the first slider; when the second slider conveying device 420 conveys the second slider into the second slider holding groove 122, the second tab fixing device 121 fixes the tab of the second slider.

Referring to fig. 1 to 2, and fig. 5 to 6 in detail, the first lower mold body 110 is provided with a first chain guide groove 112 and a first slider holding groove 113 communicating with the first chain guide groove 112 in sequence along a feeding direction of the fastener tape 300. The first chain guide groove 112 is formed in a horn shape, the width of the first chain guide groove is reduced along the conveying direction of the fastener tape 300, the fastener teeth of the fastener tape 300 are guided from the first chain guide groove 112 to the first chain guide groove 112, the first chain guide groove 112 comprises a fastener tooth guiding part and a fastener tooth guiding part, and the fastener tooth guiding part are both provided with arc chamfers. The first chain guide groove 112 mainly functions to smoothly guide the zipper teeth of the zipper tape 300 into the first zipper head 310 placed on the first chain guide groove 112 so as to complete the action of threading the first zipper head 310 onto the zipper tape 300, and the zipper tooth guide-in portion and the zipper tooth guide-out portion are both provided with arc chamfers to avoid clamping the zipper teeth. When the first slider 310 is placed in the first slider holding groove 113, the element lead-out portion of the first guide groove 112 corresponds to the element receiving portion 311 of the slider. The first slider holding groove 113 communicates with the first guide groove 112, and the fastener element of the fastener tape 300 is guided by the element introducing portion and the element discharging portion of the first guide groove 112 and then can just enter the first slider 310 placed in the first slider holding groove 113 to complete threading of the first slider 310. The fastener tapes 300 stretched by the knife stretching device 210 are introduced from the first guide groove 112 into the first slider 310 placed in the first slider holding groove 113, and the fastener tapes 300 are engaged with each other by the zipper closing portion of the first slider 310.

In this embodiment, the first tab holding groove 113 includes a first tab portion for placing the zipper insertion portion 311 of the tab and a first tail portion for placing the zipper closing portion 312 of the tab; the second zipper puller holding groove 122 comprises a second head part and a second tail part, wherein the second head part is used for placing the zipper entering part 311 of the zipper puller, and the second tail part is used for placing the zipper closing part 312 of the zipper puller; the first head portion, the first tail portion, the second tail portion and the second head portion are sequentially arranged along the conveying direction of the fastener tape 300, so that the fastener tape 300 can enter the zipper closing portion 312 of the second zipper head 320 after being engaged with the zipper closing portion of the first zipper head 310, and two zipper heads can be threaded at one time.

The second lower case 120 is provided with a second slider holding groove 122 and a second guide groove 123 communicating with the second slider holding groove 122 in sequence along the conveying direction of the fastener tape 300. The first zipper head clamping groove 113 and the second zipper head clamping groove 122 are symmetrically arranged, so that when the first zipper head 310 is placed in the first zipper head clamping groove 113, and the second zipper head 320 is placed in the second zipper head clamping groove 122, the zipper closing parts 312 (one ends of the meshed zippers) of the first zipper head 310 and the second zipper head are symmetrically arranged close to each other. At this time, portions of the fastener tape 300 after passing through the first slider 310 are engaged, and the engaged fastener tape 300 is automatically fed forward into the coupling portion 312 of the second slider 320 placed in the second slider holding groove 122, completing threading of the second slider 320 on the fastener tape 300. And, the second lower die body 120 is further provided with a second branch chain 124, and the second branch chain 124 is transversely arranged. In one embodiment, the second zipper half 124 is disposed behind the second zipper guide groove 123, and the second zipper half 124 is used for separating two zipper chains of the zipper with completed zipper heads. The engaged fastener tape 300 is automatically fed forward into the zipper coupling part 312 of the second slider 320 placed in the second slider holding groove 122, and when the engaged fastener tape 300 is fed to the zipper feeding part 311 of the second slider 320 through the zipper coupling part 312 of the second slider 320, the engaged fastener tape 300 is opened, and since the second partial chain 124 is disposed behind the second guide groove 123 and the second partial chain 124 is disposed in the lateral direction, the engaged fastener tape 300 is firstly torn by the second partial chain 124 and then passes through the zipper feeding part 311 of the second slider 320 more smoothly.

Meanwhile, in the embodiment, the first zipper section 114 is disposed in the middle of the first zipper guide groove 112, the first zipper section 114 is disposed along the conveying direction of the zipper tape 300, and the first zipper section 114 mainly prevents two zipper teeth of the zipper tape 300 separated by the cutter supporting device 210 from interfering with each other.

In the technical scheme provided by the invention, the first zipper head conveying device 410 conveys the first zipper head 310 to the first zipper head clamping groove 113, meanwhile, the second zipper head conveying device 420 conveys the second zipper head 320 to the second zipper head clamping groove 122, and after the conveying of the zipper heads is finished, the first zipper head conveying device 410 and the second zipper head conveying device 420 return to the original positions. At this time, the first slider 310 placed in the first slider holding groove 113 and the second slider 320 placed in the second slider holding groove 122 are both turned upside down and fixed to the first lower mold 110 and the second lower mold 120, respectively, and the zipper closing portions 312 (ends of the engaging zippers) of the first slider 310 and the second slider are symmetrically disposed close to each other, and at this time, the element leading-out portion of the first zipper guiding groove 112 is exactly aligned with the zipper entering portion of the first slider 310. Then, the first and second lower molds 110 and 120 are moved closer to each other by the cylinder, and are lifted up to be closed with the upper mold 200. The fastener tape 300 is spread by the spreader means 210, and the fastener tape 300 is changed from the state of engagement to the state of separation. The conveying device of the zipper tape 300 drives the zipper tape 300 to move forward, the zipper teeth of the separated zipper tape 300 enter the first chain guide groove 112 through the zipper tooth leading-in part of the first chain guide groove 112, then enter the zipper entering part of the first zipper head 310 through the zipper tooth leading-out part of the first chain guide groove 112, and then complete the threading of the first zipper head 310 through the zipper closing part of the first zipper head 310, and meanwhile, the zipper tape 300 completes the meshing again. Since the first slider 310 and the coupling portion 312 (one end of the coupling fastener) of the second slider are symmetrically disposed close to each other, the fastener tape 300 after coupling is immediately inserted into the coupling portion 312 of the second slider 320; then, the fastener tape 300 is separated again by the second slider 320 through the fastener insertion portion 311 and the second guide groove 123, and the two sliders are once put through. When the zipper head is worn, the two zipper heads are symmetrically distributed on the zipper tape 300 with opposite tails, and the zipper tape 300 in the middle of the two zipper heads is in an engaged state.

In one embodiment, the first guide groove 112, the first slider holding groove 113, the second slider holding groove 122, and the second guide groove 123 are sequentially arranged along a direction in which the fastener tape 300 is conveyed. So that the zipper tape 300 firstly penetrates the first zipper head 310, and when the first zipper head 310 is penetrated, the zipper tape 300 is engaged, and at this time, the engaged zipper tape 300 can just penetrate and be placed in the second zipper head 320, and the penetration of two zipper heads can be completed at one time.

In one embodiment, the second chain guide groove 123 is formed in a shape of a trumpet, the width of which is increased along the feeding direction of the fastener tape 300, so that the fastener tape 300 can be more smoothly guided out, and the second chain guide groove 123 and the second part chain 124 cooperate with each other to guide the separated fastener tape 300 after the two sliders are completely threaded. After the double zipper head threading is completed, if a subsequent process requires a distance for separating the zipper tapes behind the second zipper head, the zipper tapes can be separated longer at the portion behind the second zipper head by the zipper opening device 500.

In addition, the present invention also provides a method for threading the double sliders, wherein the first slider conveying device and the second slider conveying device 420 respectively convey one slider to the first slider holding groove 113 and the second slider holding groove 122 at the same time;

the fastener tape 300 is spread by the spreading knife device 210;

the upper die body 200 and the lower die body are closed;

the divided zipper tapes 300 enter the zipper entrance part of the first zipper slider 310 disposed in the first zipper slider holding groove 113 through the first guide groove 112, respectively;

the fastener tape 300 is closed at the zipper closing portion of the first slider 310;

the closed fastener tape 300 passes through the gap between the first bottom mold 110 and the second bottom mold 120, enters the coupling portion 312 of the second slider 320 provided in the second slider holding groove 122, passes through the second fastener division chain 124, and is divided, and the divided fastener tape 300 is fed forward through the coupling portion 311 of the second slider 320.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. A machine for threading double zipper sliders, which comprises

A frame;

a zipper belt conveying device arranged on the machine frame;

a knife expanding device which is movably arranged on the frame and used for expanding the zipper tape;

the lower die body comprises a first lower die body and a second lower die body which are movably arranged on the rack;

the first lower die body is sequentially provided with a first chain guide groove and a first zipper puller clamping groove communicated with the first chain guide groove along the conveying direction of the zipper strips; the first zipper guide groove is in a horn shape, the width of the first zipper guide groove is reduced along the conveying direction of the zipper tapes, and the first zipper guide groove comprises a zipper tooth leading-in part and a zipper tooth leading-out part; when the zipper head is placed in the first zipper head clamping groove, the zipper tooth leading-out part corresponds to the zipper leading-in part of the zipper head;

the second lower die body is sequentially provided with a second zipper puller clamping groove and a second zipper guide groove communicated with the second zipper puller clamping groove along the conveying direction of the zipper strips; the first zipper puller clamping groove and the second zipper puller clamping groove are symmetrically arranged;

the first zipper head conveying device is arranged on the rack and used for conveying the zipper heads into the first zipper head clamping groove one by one;

and the second zipper head conveying device is arranged on the rack and is used for conveying the zipper heads to the second zipper head clamping groove one by one.

2. The machine for threading a double zipper slider of claim 1, wherein the first zipper slider holding groove includes a first head portion for placing a zipper-in portion of the zipper slider and a first tail portion for placing a zipper-closing portion of the zipper slider; the second zipper puller clamping groove comprises a second head part and a second tail part, the second head part is used for placing a zipper entering part of the zipper puller, and the second tail part is used for placing a zipper closing part of the zipper puller; the first head portion, the first tail portion, the second tail portion and the second head portion are sequentially arranged along the conveying direction of the zipper tapes.

3. The machine for threading a double slider according to claim 1, wherein the first chain guide groove, the first slider holding groove, the second slider holding groove and the second chain guide groove are provided in this order along a direction in which the fastener tape is conveyed.

4. The machine for threading a double slider as recited in claim 1, wherein said second chain guide groove is formed in a trumpet shape whose width becomes larger in a direction in which the fastener tape is fed.

5. The machine for threading double zipper sliders according to claim 1, wherein a first sub chain is provided in the middle of the first guide groove, and the first sub chain is provided along a feeding direction of the zipper tapes.

6. The machine for making double zippers according to claim 1, wherein the second lower die body is further provided with a second branch chain, and the second branch chain is transversely arranged; the second branch chain is arranged behind the second chain guide groove and used for separating two chains of the zipper with the penetrating heads.

7. The machine for threading a double zipper puller according to claim 1, wherein the first lower mold body is further provided with a first pull-tab fixing device for tension-fixing a pull-tab of a zipper puller, and the second lower mold body is provided with a second pull-tab fixing device for tension-fixing a pull-tab of a zipper puller.

8. The machine for making double zippers according to claim 1, wherein when the first lower mold body and the second lower mold body are close to each other, a gap is formed therebetween.

9. A method for threading double zipper sliders is characterized in that a first zipper slider conveying device and a second zipper slider conveying device respectively convey one zipper slider to a first zipper slider clamping groove and a second zipper slider clamping groove at the same time;

the upper die body and the lower die body are matched;

the zipper tape is spread by the knife spreading device;

the separated zipper belts respectively enter a zipper entering part of a first zipper puller arranged in the first zipper puller clamping groove through the first zipper guide groove;

the zipper tape is closed at the zipper closing part of the first zipper head;

and the closed zipper tape passes through a gap between the first lower die body and the second lower die body, enters a zipper closing part of a second zipper puller arranged in the second zipper puller clamping groove, passes through the second zipper dividing chain, is separated, and is conveyed forwards through a zipper inlet part of the second zipper puller.

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