TWM605865U - Needle guard device of zipper sewing machine - Google Patents

Abstract

A needle guard device of a zipper sewing machine includes a machine body, a zipper stitching mechanism and a needle guard mechanism. The needle guard mechanism can effectively limit the hook needle of the zipper stitching mechanism to an effective range during sewing operations. , Thereby avoiding jumpers during sewing, making the finished zipper more firm, resistant to pulling, and neat and beautiful stitching.

Description

Needle guard device of zipper sewing machine

This creation is about a needle guard device of a zipper sewing machine, which is used to sew zippers, especially the needle guard mechanism can avoid skipping when the zipper is sewing, so that the finished zipper is firmer, resistant to pulling, and has neat stitching. Pretty.

The development of the sewing industry has been quite proficient. The sewing operation of sewing machines is more precise, and even sewing machine tables with special accessories have been developed. Zippers are quite common and common in textiles. Therefore, there are sewing machines specializing in sewing zippers.

In conventional techniques, the crochet needle will be misaligned when sewing a zipper. When the crochet needle is misplaced and crooked, it will cause the sewing process to fail to hook the thread, which is the so-called "jump line", which will make the zipper car weak and the finished zipper The seam structure is loose and not durable, and even cannot be used normally, and the yield is poor.

Therefore, a set of corresponding needle guard mechanism is configured to effectively limit the hook needle of the zipper stitching mechanism to the effective range, thereby avoiding skipping during sewing. This is the solution to the needle guard device of the zipper stitching machine.

The needle guard device of the zipper stitching machine of this creation includes a machine body, a zipper stitching mechanism, and a needle guard mechanism. The machine system has a machine base and a body installed on the machine base. The body is provided with a lead mechanism; the zipper stitching mechanism has a zipper cloth introduction frame fixed on the base, and a stitching needle set fixed on the body, the stitching needle set has a plurality of hook needles, The suture needle set corresponds to the upper part of the zipper cloth introduction frame, and each of the hook needles can pass under the zipper cloth introduction frame during sewing operation; the needle guard mechanism has a fixed block fixed on the machine base, A first support rod and a second support rod are respectively fixed on the fixing block, and a first needle guard rod is installed on the first support rod, and a first needle guide surface is formed at the end of the first needle guard rod , And the second supporting rod is equipped with a second needle guard bar, the end of the second needle guard bar is formed with a second needle guide surface, the first needle guide surface and the second needle guide surface are corresponding to the Under the zipper cloth guide frame; install the zipper to be sewn on the zipper cloth guide frame, and when the sewing operation is carried out, the hook needles do up and down reciprocating motions, and then pass back and forth to the bottom of the zipper cloth guide frame. When the needle penetrates below the zipper cloth introduction frame, the first needle guide surface or the second needle guide surface effectively restricts each hook needle within an effective deviation range to prevent wire jump.

In a preferred embodiment, the first needle guide surface is formed by the end of the first needle guard in a horizontal direction, and the second needle guide surface is formed by the end of the second needle guard in a horizontal direction.

In a preferred embodiment, the first needle guide surface and the second needle guide surface are formed in directions opposite to each other.

In a preferred embodiment, the first needle guide surface and the second needle guide surface are designed to be inclined surfaces or curved surfaces with a narrow upper side and a lower width.

The other technical content, features and effects of this creation will be clearly presented in the following detailed description of the preferred embodiment with reference to the drawings.

The terms "fixed", "installed" or "installed" used to describe the structural combination relationship disclosed in the content of this creation manual refer to the use of any combination of threads, tenons, fasteners, nails, and adhesives. So that multiple structures will not easily separate or fall after being combined.

The term "upper" used to describe the position of the structure disclosed in the content of this creation manual refers to any surface position of the structure, not commonly known as the directional "above" or "above". The terms "above" and "below" used to describe the structure position refer to the directionality of the structure position under conventional use.

Please refer to Figures 1 to 3, which are a schematic plan view of the overall and partial structure of the needle guard device of the creative zipper stitching machine. As shown in the figure, in this embodiment, at least a machine body 1 and a zipper stitching mechanism are included. 2 and a needle guard mechanism 3;

Among them, the machine body 1 has a machine base 11 and a body 12 mounted on the machine base 11, and the body 12 is provided with a threading mechanism 4, and the threading mechanism 4 is capable of threading stitches 41 The zipper sewing mechanism 2 is imported from outside to provide sewing needs (the design of the sewing lead is not the subject of this creative exploration, so I will not repeat it);

Wherein, the zipper sewing mechanism 2 has a zipper cloth introduction frame 21 fixed on the base 11, and a suture needle set 22 fixed on the body 12, and the suture needle set 22 has a plurality of hooks. Needles 221. In this embodiment, there are two crochet needles 221. The stitching needle set 22 corresponds to the top of the zipper cloth introduction frame 21. Each crochet needle 221 can be threaded to the zipper cloth during sewing operations. Below the lead-in rack 21;

The needle guard mechanism 3 has a fixed block 31 fixed on the base 11, and a first support rod 32 and a second support rod 33 are respectively fixed on the fixed block 31. The first support rod 32 is equipped with a first needle guard bar 34, the end of the first needle guard bar 34 is horizontally formed with a first needle guide surface 341, and the second support bar 33 is equipped with a second needle guard bar 35 , The end of the second needle guard bar 35 is horizontally formed with a second needle guide surface 351, the first needle guide surface 341 and the second needle guide surface 351 correspond to the bottom of the zipper cloth introduction frame 21, and the The first needle guide surface 341 and the second needle guide surface 351 are formed in directions opposite to each other;

Among them, please refer to Figures 4A and 4B together, and install the zipper 5 to be sewn on the zipper cloth introduction frame 21. When the sewing operation is carried out, the crochet needles 221 perform up and down reciprocating motions to pass back and forth to the Below the zipper cloth introduction frame 21, when the two crochet needles 221 pass under the zipper cloth introduction frame 21, they can pass by the first needle guide surface 341 and the second needle guide surface 351 respectively, assuming the hook needle When 221 deviates from the original position during operation, the first needle guide surface 341 or the second needle guide surface 351 can effectively guide the crochet needle 221 back to the correct position, and each crochet needle 221 can be reciprocated It is further limited to the effective deviation range to prevent skipping. Therefore, when the zipper 5 is sewn, it can be sewn in the correct position of the zipper more accurately, and the finished zipper product after sewing is more stable, firm, and resistant to pulling. And the stitching is neat and beautiful.

Please refer to FIGS. 2 and 3 together. The first needle guide surface 341 and the second needle guide surface 351 are designed to be inclined surfaces or curved surfaces with narrow upper and lower widths.

This creation has been disclosed above through the above-mentioned embodiments. It is only a preferred embodiment of this creation part, but it is not intended to limit this creation. Anyone familiar with this technical field with ordinary knowledge should understand the aforementioned technology of this creation Features and embodiments, and equal changes or modifications made without departing from the spirit and scope of this creation, still fall within the scope of this new model, and the scope of patent protection of this creation shall be defined by the claims attached to this specification Whichever prevails.

1: Machine body 11: Base 12: Body 2: Zipper stitching mechanism 21: Zipper cloth guide frame 22: Suture needle group 221: hook 3: Needle guard mechanism 31: fixed block 32: The second pole 33: The second pole 34: The first needle guard 341: The first guide needle surface 35: second needle guard 351: Second guide needle surface 4: Lead mechanism 41: suture 5: Zipper

[Figure 1] is a schematic diagram of the overall structure of this creation. [Figure 2] is a schematic plan view of the partial structure of the zipper stitching mechanism and the needle guard mechanism of this creation. [Figure 3] is a schematic plan view of the partial structure of the needle guard mechanism of this creation. [Figure 4A] is a schematic diagram of the sewing operation plan of this creation. [Picture 4B] is a schematic diagram of the sewing operation of this creation.

11: Base

12: Body

2: Zipper stitching mechanism

21: Zipper cloth guide frame

22: Suture needle group

221: hook

3: Needle guard mechanism

31: fixed block

32: The second pole

33: The second pole

34: The first needle guard

341: The first guide needle surface

35: second needle guard

351: Second guide needle surface

Claims (6)

A needle guard device of a zipper sewing machine, which at least includes: A machine body has a machine base and a fuselage mounted on the machine base, and a lead mechanism is provided on the fuselage; A zipper sewing mechanism has a zipper cloth introduction frame fixed on the base, and a suture needle set fixed on the body. The suture needle set has a plurality of hook needles, and the suture needle set corresponds to Above the zipper cloth guide frame, each hook can be threaded under the zipper cloth guide frame during sewing operations; A needle guard mechanism has a fixed block fixed on the base, and a first support rod and a second support rod are respectively fixed on the fixed block, and a first guard is installed on the first support rod. Needle bar, the end of the first needle guard bar is formed with a first needle guide surface, and the second support bar is equipped with a second needle guard bar, and the end of the second needle guard bar is formed with a second needle guide surface , The first needle guide surface and the second needle guide surface correspond to the bottom of the zipper cloth introduction frame; Install the zipper to be sewn on the zipper cloth introduction frame. During the sewing operation, the crochet needles perform up and down reciprocating motions to pass back and forth under the zipper cloth introduction frame, and each crochet needle penetrates to the zipper cloth When being introduced below the rack, the first needle guide surface or the second needle guide surface effectively restricts each hook needle within an effective deviation range to prevent wire jumpers. For the needle guard device of the zipper sewing machine of claim 1, wherein the first needle guide surface is formed by the end of the first needle guard bar facing in a horizontal direction, and the second needle guide surface is formed by the end of the second needle guard bar facing toward Formed horizontally. According to claim 2, the needle guard device of a zipper sewing machine, wherein the first needle guide surface and the second needle guide surface are formed in directions opposite to each other. For example, the needle guard device of the zipper sewing machine of claim 1, wherein the first needle guide surface and the second needle guide surface are designed to be narrow at the top and wide at the bottom. Such as the needle guard device of the zipper sewing machine of claim 4, wherein the first needle guide surface and the second needle guide surface are designed to be inclined surfaces. For example, the needle guard device of the zipper sewing machine of claim 4, wherein the first needle guide surface and the second needle guide surface are designed as arc curved surfaces.

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