Chain belt with non-continuous sewing of chain teeth and sewing equipment for manufacturing chain belt

Abstract

The utility model relates to the technical field of zippers, in particular to a zipper belt with non-continuous stitching of zipper teeth and stitching equipment for manufacturing the zipper belt, a stitching mechanism stitches and fixes the passing zipper teeth on the side portion of a belt body, stops for a preset time after stitching for a preset length, then starts stitching for the preset length, and circulates in sequence. The zipper belt comprises a long-strip-shaped belt body and zipper teeth sewn to the side portion of the belt body in the length direction of the belt body, sewing lines between the zipper teeth and the belt body are arranged in a segmented mode, and therefore a plurality of sewing sections where the zipper teeth and the belt body are sewn mutually and a plurality of separation sections where the zipper teeth and the belt body are kept non-sewn are formed. And an application manufacturer saves a sewing thread removing procedure, saves time and labor and improves the working efficiency. The application date of the application is May 15, 2024, the application number is 2024210591064, and all the contents of the Chinese patent application are combined in the application through reference, wherein the Chinese patent application is named as a chain belt with non-continuous stitches and stitching equipment for manufacturing the chain belt with the non-continuous stitches, and the application date of the Chinese patent application is May 15, 2024, and the application number of the Chinese patent application is 2024210591064.

Description

TECHNICAL FIELD

[0001] The utility model relates to zip fastener technical field, concretely relates to a chain belt of non -continuous sewing line of chain tooth and sewing line equipment for manufacturing it.

[0002] CLAIM OF PRIORITY

[0003] This application claims priority to the Chinese patent application No. 2024210591064, filed on May 15, 2024, entitled “Chain belt with non-continuous sewing line and sewing line equipment for manufacturing the same”, the entire content of which is incorporated herein by reference. BACKGROUND

[0004] Zipper is a connection of two flexible chain belts intermeshing and a puller that can make it repeatedly open and close. Zipper is divided into nylon zipper, plastic steel zipper and metal zipper according to the material of the chain tooth. The chain tooth is fixed and arranged on the belt edge through forming process, and the zipper is called nylon zipper. The chain tooth of the conventional nylon zipper is an oval with smooth surface.

[0005] At present, the sewing process of nylon zipper is one of the key processes in the production of nylon zipper. The main equipment used is nylon zipper sewing machine. The main work of the sewing machine is to sew the belt and nylon tooth together. After sewing, it becomes a semi-finished nylon zipper embryo (hereinafter referred to as “zipper embryo”). The existing zipper sewing equipment, such as the zipper sewing machine disclosed in the Chinese patent document No. CN203960530U, includes a rack, a belt pressing wheel arranged on the rack, and a belt dragging wheel arranged on the rack at the same height as the belt pressing wheel. The belt pressing wheel includes a belt pressing upper wheel and a belt pressing lower wheel. The belt dragging wheel includes a belt dragging upper wheel and a belt dragging lower wheel. The belt pressing upper wheel is connected to a lifting mechanism. The belt pressing lower wheel is connected to a small synchronous wheel. The belt dragging lower wheel penetrates a shaft roller. One end of the shaft roller is connected to a large synchronous wheel. The other end of the shaft roller is connected to a motor. The small synchronous wheel and the large synchronous wheel are connected by a belt. The belt dragging upper wheel is connected to a lifting mechanism. The belt dragging wheel is connected to a sewing mechanism. The structure is simple, can quickly switch between production of conventional products and non-conventional products, reduces equipment investment, improves the utilization rate of existing equipment, and reduces production cost.

[0006] In the field of zipper technology, the upstream and downstream ecology is as follows: zipper manufacturers produce super-long zipper embryos (i.e. a long strip of belt body (usually a cloth belt, but also other flexible belts) with chain teeth arranged on the side by sewing. The chain tooth is a spiral strip-like structure), and then supply it to downstream application manufacturers, such as bag manufacturers and clothing manufacturers. Taking a bag manufacturer as an example, the manufacturer cuts the corresponding length of the zipper embryo segment according to the length of the opening and closing side of the bag, and sews the belt bodies of the two zipper embryo segments on the opening and closing sides of the bag, respectively.

[0007] The prior art has the technical problem that the existing sewing machine can only work continuously when producing the zipper blank, that is, the chain teeth are continuously sewn on the side of the belt body along the length direction of the belt body, so that when the zipper blank is applied by the downstream luggage manufacturer, the chain teeth of the cut-out zipper blank segment are distributed along the belt body segment. However, according to the production needs, the two ends of the cut-out zipper blank segment need to be reserved without chain teeth to be hiddenly sewn with the luggage, so the chain teeth at the two ends of the cut-out zipper blank segment need to be removed by the luggage manufacturer. The existing technology manually cuts the sewing thread outside the corresponding chain teeth and then cuts the corresponding chain teeth, which is time-consuming and laborious and extremely inconvenient to operate, thereby reducing the production efficiency of the application manufacturer. Even if a special chain tooth thread removal device for the zipper appears later, it also brings certain inconvenience and cost increase to the application manufacturer. SUMMARY

[0008] In view of all or part of the above technical problems in the prior art, the utility model provides a chain tooth non-continuous sewing chain belt and a sewing device for manufacturing the same.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0010] The utility model provides a chain tooth non-continuous sewing chain belt, which comprises a strip-shaped belt body and chain teeth sewn on the side of the belt body along the length direction of the belt body, characterized in that: the sewing thread between the chain teeth and the belt body is arranged in sections, thereby forming a plurality of sewing sections in which the chain teeth and the belt body are sewn to each other and a plurality of separation sections in which the chain teeth and the belt body are kept non-sewn, and the plurality of sewing sections and the plurality of separation sections are arranged in sequence and at intervals.

[0011] As a further optional scheme, the lengths of the plurality of sewing sections are the same, and the lengths of the plurality of separation sections are the same.

[0012] The utility model also provides a sewing device for manufacturing the above-mentioned chain belt, characterized in that: the sewing device comprises a sewing mechanism and a belt dragging mechanism, the belt dragging mechanism is used for dragging the belt body and the chain teeth to continuously flow through the sewing mechanism synchronously, and the sewing mechanism is used for sewing and fixing the belt body and the chain teeth flowing therethrough to each other; the sewing device further comprises an electric control module electrically connected to the sewing mechanism to control the sewing mechanism to cyclically switch between a sewing state and a stop state, in the sewing state, the chain teeth flowing therethrough and the corresponding belt body are sewn and fixed to each other, and in the stop state, the sewing is stopped to separate the chain teeth flowing therethrough and the corresponding belt body section non-sewnly.

[0013] As a further optional scheme, the sewing device further comprises a needle protection mechanism, which comprises a needle protection block and a needle protection driving member, in the stop state, the needle protection driving member drives the needle protection block to resist the side of the sewing needle of the sewing mechanism, and the resisting direction is opposite to the belt dragging direction.

[0014] As a further optional solution, the number of the needle of the suture mechanism is two, and the needle guard block is provided with two needle blocking parts; the needle guard driving member can drive the needle guard block to move horizontally, so that the two needle blocking parts are away from the needle or close to the two needles respectively.

[0015] As a further optional solution, the towing mechanism includes a first towing module and a second towing module, both of which can tow the belt body to move, and the first towing module and the second towing module are electrically connected to the electric control module to select the first towing module and / or the second towing module to tow the belt body.

[0016] As a further optional solution, the first towing module is used to tow the belt body in the suture state, and the second towing module is used to tow the belt body in the pause state, and the towing speed of the second towing module is less than that of the first towing module.

[0017] As a further optional solution, the first towing module and the second towing module respectively include an upper roller, a lower roller and a towing driving member, the upper roller and the lower roller are arranged in parallel and leave a gap for the belt body to pass through, and the towing driving member is electrically connected to the electric control module to drive the upper roller and / or the lower roller to rotate, so that the upper roller and the lower roller jointly clamp the belt body to move; the gap between the upper roller and the lower roller is adjustable to remove the towing of the belt body.

[0018] As a further optional solution, the upper roller is longitudinally elastically floating to elastically press the top surface of the belt body; the upper roller and / or the lower roller are provided with a circumferential slot for the chain teeth to pass through.

[0019] As a further optional solution, the second towing module further includes a support seat, a floating seat, a transition seat, a spring and a lifting mechanism, the floating seat is longitudinally slidably installed on the support seat, the upper roller is rotatably installed on the floating seat, the transition seat is longitudinally movably installed on the floating seat, the two ends of the spring are respectively abutted against the floating seat and the transition seat, and the lifting mechanism can drive the floating seat to move longitudinally.

[0020] The utility model discloses the beneficial effects of:

[0021] The utility model discloses a kind of chain tooth non-continuous suture's chain belt and the suture equipment for manufacturing it, when working, the belt body and chain tooth to be sutured are under the action of drag belt mechanism Synchronous continuously through suture mechanism, suture mechanism fixes the side portion of belt body by suture of passing chain tooth, and after suture preset length, stop preset length, then start suture preset length again, in this cycle, chain belt produced thereby is segmentedly arranged between chain tooth and belt body in the length direction of belt body, and local segment between chain tooth and belt body is not sutured and separated. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is structure schematic view of suture equipment in embodiment.

[0023] Figure 2 It is structure schematic view of needle protection mechanism in embodiment.

[0024] Figure 3 It is structure schematic view of second drag belt module in embodiment.

[0025] Figure 4 It is structure schematic view of chain belt produced in embodiment.

[0026] Reference signs:

[0027] Suture mechanism 1, sewing needle 11;

[0028] Drag belt mechanism 2, first drag belt module 21, second drag belt module 22, upper roller 23, lower roller 24, let place groove 241, drag belt driving part 25, support seat 26, floating seat 27, transition seat 28, spring 29, lifting mechanism 210;

[0029] Electric control module 3;

[0030] Needle protection mechanism 4, needle protection block 41, needle blocking part 411, needle protection driving part 42;

[0031] Belt body 101, chain tooth 102, suture segment 103, separation segment 104. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0033] The suture equipment of the embodiment, like Figures 1 to 4As shown, the device includes a sewing mechanism 1 and a pulling mechanism 2, the pulling mechanism 2 is used to pull the long strip-shaped belt body 101 and the chain tooth 102 to continuously and synchronously flow through the sewing mechanism 1, and the sewing mechanism 1 is used to sew and fix the passing belt body 101 and the chain tooth 102 to each other. The main improvement is that the device further comprises an electric control module 3 electrically connected to the sewing mechanism 1 to control the sewing mechanism 1 to cyclically switch between a sewing state and a stop state, in the sewing state, the passing chain tooth 102 and the corresponding belt body 101 are sewn and fixed to each other, and in the stop state, the sewing is stopped to keep the passing chain tooth 102 and the corresponding belt body 101 segments separated without sewing.

[0034] The chain belt sewing method using the above device, in operation, the belt body 101 and the chain tooth 102 to be sewn continuously and synchronously flow through the sewing mechanism 1 under the action of the pulling mechanism 2, the sewing mechanism 1 sews and fixes the passing chain tooth 102 to the side of the belt body 101, and stops after sewing a preset length for a preset time, and then starts to sew a preset length, and the cycle is repeated, thereby producing a chain belt with the sewing line between the chain tooth 102 and the belt body 101 arranged in segments along the length direction of the belt body 101, and the local segments of the chain tooth 102 are separated from the belt body 101 without sewing. The chain belt with non-continuous sewing produced as shown in Figure 4 As shown, the sewing segments 103 in which the chain tooth 102 and the belt body 101 are sewn together and the separation segments 104 in which the chain tooth 102 and the belt body 101 are kept separated without sewing are arranged in sequence and at intervals, the length of each sewing segment 103 is equal, and the length of each separation segment 104 is also equal. In this way, when supplied to an application manufacturer, the application manufacturer only needs to cut at the non-sewing position of the chain belt and cut off the chain tooth 102 of the separation segment 104 without sewing and fixing, to obtain a chain belt without chain tooth 102 at both ends, saving the disassembling and sewing process, saving time and effort and improving work efficiency.

[0035] In this embodiment, the device further comprises a needle protection mechanism 4, which comprises a needle protection block 41 and a needle protection driving member 42, the needle protection driving member 42 is electrically connected to the electric control module 3, in the stop state, the needle protection driving member 42 drives the needle protection block 41 to resist the side of the sewing needle 11 of the sewing mechanism 1, and the resistance direction is opposite to the pulling direction, to avoid the sewing needle 11 from being bent and deformed or even broken. The number of each group of sewing needles 11 of the sewing mechanism 1 is two, and the needle protection block 41 is provided with two needle blocking portions 411; the needle protection driving member 42 can drive the needle protection block 41 to move transversely, so that the two needle blocking portions 411 are away from the sewing needle 11 or close to the two sewing needles 11 respectively. Of course, in practice, a corresponding number of needle blocking portions can be provided according to the number of sewing needles 11, which is not a limitation of the inventive concept of this embodiment.

[0036] In the embodiment, the dragging mechanism 2 comprises a first dragging module 21 and a second dragging module 22, both of which can drag the belt body 101 to move, and both of which are electrically connected to the electric control module 3 to select the first dragging module 21 and / or the second dragging module 22 to drag the belt body 101 and the chain tooth 102. Specifically, the first dragging module 21 is used to drag the belt body 101 in the sewing state, and the second dragging module 22 is used to drag the belt body 101 in the pause state. The dragging speed of the second dragging module 22 is less than that of the first dragging module 21, so as to avoid bending the sewing needle 11 or breaking the sewing thread.

[0037] Specifically, the first dragging module 21 and the second dragging module 22 each comprise an upper roller 23, a lower roller 24 and a dragging driving member 25. The upper roller 23 and the lower roller 24 are arranged in parallel and have a gap for the belt body 101 to pass through. The dragging driving member 25 is electrically connected to the electric control module 3 to drive the lower roller 24 to rotate, so that the upper roller 23 and the lower roller 24 jointly hold the belt body 101 to move. The height of the upper roller 23 is adjustable, so as to adjust the gap between the upper roller 23 and the lower roller 24 to release the dragging of the belt body 101.

[0038] Specifically, the upper roller 23 is longitudinally elastically floatingly arranged to elastically press the top surface of the belt body 101. The lower roller 24 is circumferentially provided with a gap slot 241 for the chain tooth 102 to pass through, so as to guide and give way. Specifically, the second dragging module further comprises a supporting seat 26, a floating seat 27, a transition seat 28, a spring 29 and a lifting mechanism 210. The floating seat 27 is longitudinally slidably mounted on the supporting seat 26. The upper roller is rotatably mounted on the floating seat 27. The transition seat 28 is longitudinally movably mounted on the floating seat 27. The two ends of the spring 29 are respectively abutted against the floating seat 27 and the transition seat 28. The lifting mechanism 210 can drive the floating seat 27 to move downward, so as to press the spring 29 to drive the floating seat 27 to move downward, and then drive the upper roller and the lower roller to cooperate. The lifting mechanism 210 drives the floating seat 27 to move upward, so as to drive the transition seat 28, the floating seat 27 and the upper roller to move upward.

[0039] In the embodiment, the control of the electric control module 3 on the sewing mechanism 1, the dragging mechanism 2, the needle protection driving member 42 and the dragging driving member 25 is that a software engineer programs the electric control module 3 to realize the start-stop, speed, direction and other controls of each mechanism by constructing a computer function module.

[0040] The needle protection driving member 42 and the lifting mechanism 210 are linearly driven, and can adopt the existing technologies such as a cylinder, a linear motor and a screw nut transmission pair, which will not be described here.

[0041] In the description of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, rather than all the embodiments. The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the above detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0043] In the description of the utility model, it should be pointed out that the terms "middle", "upper", "lower", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product in use. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. It can be mechanically connected, or it can be electrically connected. It can be directly connected, or it can be indirectly connected through an intermediate medium. It can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A chain tape with discontinuous stitching, comprising a strip-shaped tape body (101) and chain teeth (102) sewn along the length of the tape body (101) to the side of the tape body (101), characterized in that: The sutures between the chain teeth (102) and the belt body (101) are arranged in segments, thereby forming a multi-segment suture segment (103) in which the chain teeth (102) and the belt body (101) are sutured together, and a multi-segment separation segment (104) in which the chain teeth (102) and the belt body (101) remain unsutured. The multi-segment suture segment (103) and the multi-segment separation segment (104) are arranged alternately in sequence.

2. The chain tape of a discontinuous suture with chain teeth according to claim 1, characterized in that: The lengths of the multi-segment sutured segments (103) are the same, and the lengths of the multi-segment separated segments (104) are the same.

3. A sewing apparatus for manufacturing a chain tape of a discontinuous chain tooth suture as described in claim 1 or 2, characterized in that: It includes a suture mechanism (1) and a dragging mechanism (2). The dragging mechanism (2) is used to drag the belt body (101) and the chain teeth (102) to flow synchronously and continuously through the suture mechanism (1). The suture mechanism (1) is used to suture and fix the passing belt body (101) and chain teeth (102) to each other. It also includes an electrical control module (3) electrically connected to the suture mechanism (1) to control the suture mechanism (1) to switch cyclically between a suture state and a rest state. In the suture state, the passing chain teeth (102) are sutured and fixed to the corresponding belt body (101). In the rest state, the suture is stopped and the passing chain teeth (102) are non-suturedly separated from the corresponding belt body (101) segments.

4. The suture device according to claim 3, characterized in that: It also includes a needle protection mechanism (4), which includes a needle protection block (41) and a needle protection drive (42). In the resting state, the needle protection drive (42) drives the needle protection block (41) to block the side of the needle (11) of the sewing mechanism (1), and the blocking direction is opposite to the dragging direction.

5. The suture device according to claim 4, characterized in that: The sewing mechanism (1) has two needles (11), and the needle guard block (41) has two needle guarding parts (411). The needle guard drive (42) can drive the needle guard block (41) to move laterally, so that the two needle guarding parts (411) move away from the needles (11) or move closer to the two needles (11) respectively.

6. The suture device according to claim 3, characterized in that: The towing mechanism (2) includes a first towing module (21) and a second towing module (22) that can both move the belt body (101). The first towing module (21) and the second towing module (22) are both electrically connected to the electronic control module (3) to select the first towing module (21) and / or the second towing module (22) to move the belt body (101).

7. The suture device according to claim 6, characterized in that: in In the stitched state, the first dragging module (21) is used to drag the belt body (101), and in the resting state, the second dragging module (22) is used to drag the belt body (101). The dragging speed of the second dragging module (22) is less than the dragging speed of the first dragging module (21).

8. The suture device according to claim 6, characterized in that: The first drag belt module (21) and the second drag belt module (22) respectively include an upper roller (23), a lower roller (24) and a drag belt drive (25). The upper roller (23) and the lower roller (24) are arranged side by side, with a gap between them for the belt body (101) to pass through. The drag belt drive (25) is electrically connected to the electronic control module (3) to drive the upper roller (23) and / or the lower roller (24) to rotate, so that the upper roller (23) and the lower roller (24) together clamp the belt body (101) to move. The gap between the upper roller (23) and the lower roller (24) is adjustable so that they move away from each other to release the drag on the belt body (101).

9. The suture device according to claim 8, characterized in that: The upper roller (23) is longitudinally elastically floating to elastically press against the top surface of the belt body (101); the upper roller (23) and / or the lower roller (24) have circumferentially provided clearance grooves (241) for the chain teeth (102) to be inserted and pass through.

10. The suture device according to claim 9, characterized in that: The second towing module (22) also includes a support base (26), a floating seat (27), a transition seat (28), a spring (29), and a lifting mechanism (210). The floating seat (27) is longitudinally slidably mounted on the support base (26), the upper roller is rotatably mounted on the floating seat (27), the transition seat (28) is longitudinally movable mounted on the floating seat (27), the two ends of the spring (29) abut against the floating seat (27) and the transition seat (28) respectively, and the lifting mechanism (210) can drive the floating seat (27) to move longitudinally.

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