CN211872273U

CN211872273U - Threading device for sewing machine

Info

Publication number: CN211872273U
Application number: CN202020323576.2U
Authority: CN
Inventors: 彭晓文; 胡开南
Original assignee: Wujiang Tianyu Sewing Equipment Co ltd
Current assignee: Wujiang Tianyu Sewing Equipment Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-11-06
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a threading device for sewing machine, including presser bar, presser bar left is provided with the eedle, is provided with the pinhole on the eedle, rotate on the presser bar and install the movable block, the movable block is close to the fixed connection dead lever on the side wall of eedle one, and the dead lever end fixedly connected with sleeve, sliding installation have a movable rod in the sleeve, the movable rod is on same water flat line with the pinhole, and the movable rod left end is provided with the recess, the movable rod right-hand member is provided with the connecting rod, and the connecting rod end runs through sleeve fixedly connected with handle, be provided with the spring in the sleeve, spring one end is fixedly connected at the movable rod right-hand member, and the other end is fixedly connected on; through setting up the movable rod, when needs penetrated the line in the pinhole, can rotate the movable block in advancing the recess with the ply-yarn drill, make the movable rod aim at the pinhole, promote the handle, make the movable rod slide to the left in the sleeve, when the movable rod left end passed the pinhole, can take out the line from the recess, accomplished threading operation promptly.

Description

Threading device for sewing machine

Technical Field

The utility model relates to a sewing machine device field specifically is a threading device for sewing machine.

Background

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. And derives the artistic forms of hand-push embroidery, computer embroidery, etc. In industrial production, sewing machine extensively is used, and present sewing machine's degree of automation is high, but still needs the manual work to realize in the aspect of the threading, and the degree of difficulty of manual threading is big, and is efficient, is unfavorable for the mass production in the processing production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a threading device for sewing machine to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a threading device for sewing machine, includes the presser bar, presser bar left is provided with the eedle, is provided with the pinhole on the eedle, rotate on the presser bar and install the movable block, the movable block is close to fixedly connected with dead lever on the eedle lateral wall, the terminal fixedly connected with sleeve of dead lever, and slidable mounting has the movable rod in the sleeve, movable rod and pinhole are on same water flat line, and the movable rod left end is provided with the recess, the movable rod right-hand member is provided with the connecting rod, and the connecting rod end runs through sleeve fixedly connected with handle.

As a further aspect of the present invention: a spring is arranged in the sleeve, one end of the spring is fixedly connected to the right end of the movable rod, and the other end of the spring is fixedly connected to the inner wall of the sleeve.

As a further aspect of the present invention: a reference plate is arranged on the side wall of the movable block, and a baffle is fixedly connected to the reference plate.

As a further aspect of the present invention: and a protection pad is arranged on the reference plate and is positioned right below the machine needle.

As a further aspect of the present invention: the protection pad is made of rubber.

Compared with the prior art, the beneficial effects of the utility model are that: by arranging the movable rod, when a wire needs to be inserted into the needle hole, the wire can be clamped into the groove, the movable block is rotated to enable the movable rod to be aligned with the needle hole, the handle is pushed, the movable rod slides leftwards in the sleeve, and when the left end of the movable rod penetrates through the needle hole, the wire can be taken out of the groove, so that the threading operation is completed; by arranging the spring, when the handle is pushed, the left end of the movable rod penetrates through the needle hole, the handle is loosened after the wire is taken out of the groove, and the movable rod moves rightwards under the action of the spring and returns to the original position; the needle head of the needle touches the reference plate by arranging the reference plate, the needle stops moving, at the moment, the movable rod and the needle hole are on the same horizontal line, and then the movable block is rotationally adjusted, so that the baffle is close to the side wall of the needle, and the movable rod is aligned with the needle hole; through setting up the protection pad, can prevent to cause the damage to the eedle syringe needle.

Drawings

Fig. 1 is a front view of a threading device for a sewing machine.

Fig. 2 is a side view of a threading device for a sewing machine.

In the figure: 1-presser foot rod, 2-needle, 3-needle hole, 4-movable block, 5-fixed rod, 6-sleeve, 7-movable rod, 8-groove, 9-connecting rod, 10-handle, 11-spring, 12-datum plate, 13-baffle and 14-protective pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, in an embodiment of the present invention, a threading device for a sewing machine includes a presser bar 1, a needle 2 is disposed on the left of the presser bar 1, a needle hole 3 is disposed on the needle 2, a movable block 4 is rotatably mounted on the presser bar 1, a fixed rod 5 is fixedly connected to a side wall of the movable block 4 close to the needle 2, a sleeve 6 is fixedly connected to a terminal of the fixed rod 5, a movable rod 7 is slidably mounted in the sleeve 6, the movable rod 7 and the needle hole 3 are on the same horizontal line, a groove 8 is disposed at a left end of the movable rod 7, a thread clip is disposed in the groove 8, a connecting rod 9 is disposed at a right end of the movable rod 7, a handle 10 is fixedly connected to the sleeve 6 through the terminal of the connecting rod 9, when the thread clip is required to be inserted into the needle hole 3, the movable block 4 is rotated to align the movable rod 7 with the needle hole 3, the handle 10 is pushed to enable the movable rod 7 to, when the left end of the movable rod 7 passes through the needle hole 3, the thread can be taken out from the groove 8, and the threading operation is finished.

Be provided with spring 11 in the sleeve 6, spring 11 one end fixed connection is at the movable rod 7 right-hand member, and other end fixed connection is on 6 inner walls of sleeve, and when promoting handle 10, the movable rod 7 left end passes pinhole 3, takes out the back with the line from recess 8, loosens handle 10, and under spring 11's effort, movable rod 7 moves to the right, resumes the normal position.

Be provided with reference plate 12 on the 4 lateral walls of movable block, fixedly connected with baffle 13 on the reference plate 12, through rotating movable block 4, make reference plate 12 be located under the eedle 2, move the eedle 2 downwards, make the 2 syringe needles of eedle touch reference plate 12, the eedle 2 stops moving, at this moment, movable rod 7 and pinhole 3 are on same water flat line, rotate again and adjust movable block 4, make baffle 13 adjacent eedle 2 lateral walls, pinhole 3 is aimed at to movable rod 7 promptly, when promoting handle 10, can pass pinhole 3 with movable rod 7 left end.

The working principle of the embodiment is as follows: when a wire needs to be threaded into the needle hole 3, the wire can be clamped into the groove 8, the movable block 4 is rotated to enable the reference plate 12 to be located under the needle 2, the needle 2 is moved downwards, the needle head of the needle 2 touches the reference plate 12, the needle 2 stops moving, at the moment, the movable rod 7 and the needle hole 3 are located on the same horizontal line, the movable block 4 is rotated and adjusted to enable the baffle 13 to be close to the side wall of the needle 2, the movable rod 7 is aligned to the needle hole 3, when the handle 10 is pushed, the movable rod 7 slides leftwards in the sleeve 6, when the left end of the movable rod 7 penetrates through the needle hole 3, the wire can be taken out of the groove 8, threading operation is completed, the handle 10 is loosened, and under the acting force of the spring 11, the movable rod 7 moves rightwards and returns to the original position.

Example 2

In order to prevent the needle 2 from colliding with the reference plate 12 and causing damage, the embodiment is further improved on the basis of the embodiment 1, and the improvement is that: the reference plate 12 is provided with a protection pad 14, the protection pad 14 is positioned right below the needle 2, and the needle head of the needle 2 can be prevented from being damaged under the action of the protection pad 14; the material of the protection pad 14 is not limited, and in this embodiment, the material of the protection pad 14 is preferably rubber.

The working principle of the embodiment is as follows: in order to prevent the needle head of the needle 2 from being damaged due to the fact that the needle head of the needle 2 touches the reference plate 12, a protection pad 14 is arranged on the reference plate 12, the protection pad 14 is located right below the needle 2, and the needle head of the needle 2 can be prevented from being damaged due to the action of the protection pad 14.

In conclusion, by arranging the movable rod 7, when a wire needs to be threaded into the pinhole 3, the wire can be clamped into the groove 8, the movable block 4 is rotated to enable the movable rod 7 to be aligned with the pinhole 3, the handle 10 is pushed, the movable rod 7 slides leftwards in the sleeve 6, and when the left end of the movable rod 7 passes through the pinhole 3, the wire can be taken out of the groove 8, so that the threading operation is completed; by arranging the spring 11, when the handle 10 is pushed, the left end of the movable rod 7 penetrates through the needle hole 3, the handle 10 is loosened after the wire is taken out of the groove 8, and the movable rod 7 moves rightwards under the action of the spring 11 and returns to the original position; by arranging the reference plate 12, the needle head of the needle 2 touches the reference plate 12, the needle 2 stops moving, at the moment, the movable rod 7 and the needle hole 3 are on the same horizontal line, the movable block 4 is adjusted in a rotating mode, the baffle 13 is close to the side wall of the needle 2, and the movable rod 7 is aligned with the needle hole 3; by providing the protective pad 14, damage to the needle 2 tip can be prevented.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a threading device for sewing machine, includes presser bar (1), its characterized in that, presser bar (1) left is provided with eedle (2), is provided with pinhole (3) on eedle (2), rotate on presser bar (1) and install movable block (4), and fixedly connected with dead lever (5) on movable block (4) are close to eedle (2) a lateral wall, dead lever (5) terminal fixedly connected with sleeve (6), and slidable mounting has movable rod (7) in sleeve (6), movable rod (7) and pinhole (3) are on same water flat line, and movable rod (7) left end is provided with recess (8), movable rod (7) right-hand member is provided with connecting rod (9), and connecting rod (9) end runs through sleeve (6) fixedly connected with handle (10).

2. The threading device for sewing machines according to claim 1, characterized in that a spring (11) is arranged in the sleeve (6), one end of the spring (11) is fixedly connected to the right end of the movable rod (7), and the other end is fixedly connected to the inner wall of the sleeve (6).

3. The threading device for sewing machines according to claim 1, characterized in that the side wall of the movable block (4) is provided with a reference plate (12), and a baffle (13) is fixedly connected to the reference plate (12).

4. The threading device for sewing machines according to claim 3, characterized in that said reference plate (12) is provided with a protective pad (14), said protective pad (14) being positioned directly below the needle (2).

5. The threading device of claim 4, wherein the protective pad (14) is made of rubber.