CN218203397U

CN218203397U - Thread take-up mechanism of sewing machine

Info

Publication number: CN218203397U
Application number: CN202222516866.0U
Authority: CN
Inventors: 杨维孟
Original assignee: Cixi Jiashi Machinery Co ltd
Current assignee: Cixi Jiashi Machinery Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-03
Anticipated expiration: 2032-09-22

Abstract

The utility model relates to a sewing machine take-up technical field specifically is a sewing machine take-up mechanism, including take-up lever and take-up crank, the take-up lever comprises the first body of rod and the second body of rod, be equipped with two circular slots on the first body of rod, be equipped with the spread groove on the position of the contact of the first body of rod and second body of rod, be equipped with the connecting rod that corresponds with the spread groove on the second body of rod, the take-up crank comprises the spliced pole, circular convex block and baffle, spliced pole fixed mounting is in the one end of baffle one side, circular convex block fixes the other end at the baffle opposite side, and the spliced pole is located the circular slot wherein of the first body of rod, and rotate with the first body of rod in the circular slot and be connected, be equipped with the needle bar connecting rod rather than rotating the connection on the circular convex block, be equipped with the take-up connecting rod on the first body of rod, the take-up stroke scope of wire has been increased, make people debug out the suitable effect of making up easily, make things convenient for people to use, the change is conveniently dismantled to the second body of rod that damages simultaneously.

Description

Thread take-up mechanism of sewing machine

Technical Field

The utility model relates to a sewing machine take-up technical field specifically is a sewing machine take-up mechanism.

Background

The sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material and enables one or more layers of sewing materials to be interwoven or sewed, the sewing machine can be used for sewing fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastics, paper and the like, the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, the use is simple and convenient, and artistic forms such as hand-push embroidery computer embroidery and the like are derived.

The take-up lever in the sewing machine is one of the keys for sewing fabrics, because the distances between the take-up crank and the thread passing hole on the take-up lever are different, the determined take-up amount is also different, the take-up amount of the take-up lever directly influences the quality of the sewn fabrics, the upper thread is not tightly taken out when the take-up amount is too high, the upper thread is easily broken when the take-up amount is too low, only one or two thread passing holes in the take-up lever are generally arranged on the current market, the optional take-up stroke range is small, and when the thread passing holes work for a long time, thread cutting grooves can be formed in the thread passing holes, subsequent threads are easily cut when passing through the thread grooves, so the take-up lever needs to be replaced, the traditional take-up lever is a whole, when the traditional take-up lever is replaced, other take-up mechanisms need to be detached one by one, the operation is troublesome, and the time is delayed.

Therefore, it is desirable to design a thread take-up mechanism for a sewing machine to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sewing machine take-up mechanism to solve the difficult problem of changing of take-up lever 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 sewing machine take-up mechanism, includes take-up lever and take-up crank, the take-up lever comprises the first body of rod and the second body of rod, be equipped with two circular slots on the first body of rod, be equipped with the spread groove on the position of the contact of the first body of rod and the second body of rod, be equipped with the connecting rod that corresponds with the spread groove on the second body of rod, the take-up crank comprises spliced pole, circular lug and baffle, spliced pole fixed mounting is in the one end of baffle one side, circular lug fixes the other end at the baffle opposite side, just the spliced pole is located first body of rod one of them circular slot to rotate with the first body of rod in the circular slot and be connected, be equipped with the needle bar connecting rod rather than rotating the connection on the circular lug, be equipped with the take-up connecting rod on the first body of rod, just the one end of take-up connecting rod is located the circular slot in the first body of rod to rotate with the first body of rod and be connected.

Preferably, the end of the second rod body is provided with four wire passing holes.

Preferably, the connecting groove and the connecting rod are both arranged in a regular hexagon.

Preferably, be equipped with the first thread groove with the spread groove intercommunication on the first body of rod, be equipped with the screw rod with first thread groove looks adaptation in the first thread groove, just the tip of screw rod is equipped with the cylinder, just one side on the connecting rod is equipped with the round mouth with cylinder looks adaptation.

Preferably, a second thread groove is formed in the circular bump, and a screw for limiting the needle bar connecting rod is arranged in the second thread groove.

Compared with the prior art, the beneficial effects of the utility model are that: the four thread holes are formed in the thread take-up lever of the thread take-up mechanism of the sewing machine, the thread take-up stroke range of threads is enlarged, a suitable sewing effect is easily adjusted by people, the thread take-up mechanism is convenient for people to use, and meanwhile, the damaged second lever body is convenient to detach and replace.

Drawings

FIG. 1 is a schematic view of the whole structure of the present invention;

FIG. 2 is an exploded view of the matching structure of the thread take-up crank and the needle bar connecting rod of the present invention;

FIG. 3 is a schematic view of the thread take-up lever of the present invention;

FIG. 4 is a schematic view of a first rod structure of the present invention;

fig. 5 is a schematic view of a second rod structure of the present invention;

fig. 6 is a schematic view of the screw structure of the present invention.

In the figure: 1. a take-up lever; 2. a thread take-up crank; 3. a first rod body; 4. a second rod body; 5. A circular groove; 6. connecting grooves; 7. a connecting rod; 8. connecting columns; 9. a circular bump; 10. a baffle plate; 11. a needle bar connecting rod; 12. a thread take-up connecting rod; 13. a wire passing hole; 14. a first thread groove; 15. a screw; 16. a cylinder; 17. a round mouth; 18. a second thread groove; 19. and (4) screws.

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.

Referring to fig. 1-4, the present invention provides an embodiment: a thread take-up mechanism of a sewing machine comprises a thread take-up lever 1 and a thread take-up crank 2, wherein the thread take-up lever 1 is composed of a first lever body 3 and a second lever body 4, two circular grooves 5 are formed in the first lever body 3, considering that a thread through hole 13 in the thread take-up lever 1 can generate a groove due to friction of thread length time, the condition of subsequent thread cutting is easy, the thread take-up lever 1 needs to be replaced, the thread take-up lever 1 is set into the first lever body 3 and the second lever body 4, a connecting groove 6 is formed in the contact position of the first lever body 3 and the second lever body 4, a connecting rod 7 corresponding to the connecting groove 6 is arranged on the second lever body 4, the thread take-up lever 1 is divided into the first lever body 3 and the second lever body 4, the thread take-up lever 1 can be detached more conveniently through the detachable connection mode between the first lever body 3 and the second lever body 4, the thread take-up crank 2 is composed of a connecting column 8, a circular lug 9 and a baffle 10, the connecting column 8 is fixedly arranged at one end of one side of the baffle 10, the other end of the connecting rod 9 is arranged at one end of the baffle 10, one of the first lever body 3, the connecting rod 5 is arranged in the first lever body 3, the first lever body 5, the rotating connecting rod 5 is arranged in the first lever body, the rotating connecting rod 5, the rotating connecting rod 12 is arranged in the first lever body 3, and is arranged in the rotating connection of the first lever body 3, and is arranged in the rotating groove 12, and the rotating connecting rod body 3, and the rotating connecting rod 5, and the rotating shaft 12 of the rotating rod body 3, and the rotating connecting rod 3 is arranged on the rotating rod 3, and the rotating rod 12 of the rotating rod 3, the rotating rod body 3, the rotating rod 5.

Further, consider that, the take-up crank 2 is different with the distance between the line hole 13 of crossing on the take-up lever 1, the quantity of taking-up of decision is also different, the quantity of taking-up of take-up lever 1 is directly influencing the quality of making up the surface fabric, the quantity of taking-up is too high the upper thread is taken out not tightly, the quantity of taking-up is crossed the upper thread and is broken easily excessively, so the tip of the second body of rod 4 is equipped with four and crosses line hole 13, four cross the distance diverse between line hole 13 and the take-up crank 2, the line stroke scope of taking-up of line has been increased, make things convenient for people to use, debug take-up crank 2 and cross the appropriate distance between the line hole 13.

Further, for making connecting rod 7 can be stable in spread groove 6, can not rotate, so be regular hexagon setting with spread groove 6 and connecting rod 7 to the position to the relative first body of rod 3 of the second body of rod 4 has carried on spacingly.

Further, in order to make the fixed more firm between the first body of rod 3 and the second body of rod 4, so be equipped with the first thread groove 14 with the spread groove 6 intercommunication on the first body of rod 3, be equipped with the screw rod 15 with first thread groove 14 looks adaptation in the first thread groove 14, and the tip of screw rod 15 is equipped with cylinder 16, and one side on the connecting rod 7 is equipped with the round mouth 17 with 16 looks adaptations of cylinder, through rotatory screw rod 15, screw rod 15 rotates in first thread groove 14, when screw rod 15 rotates to first thread groove 14 bottoms, cylinder 16 enters into round mouth 17 completely, thereby carry on spacingly to the position of connecting rod 7, avoid the problem that the second body of rod 4 drops.

Further, a second thread groove 18 is provided in the circular boss 9, and a screw 19 for limiting the needle bar link 11 is provided in the second thread groove 18.

The working principle is as follows: when the distance between the thread taking-up crank 2 and the thread passing hole 13 needs to be adjusted, an operator rotates the four thread passing holes until the distance is adjusted to a proper distance, when the thread passing hole 13 on the second rod body 4 is in contact with a moving thread for a long time to generate a groove, the screw 15 is rotated by an external tool to move from the first thread groove 14, the cylinder 16 leaves the position of the round opening 17, then the second rod body 4 can be taken out from the first rod body 3 to be replaced by a new second rod body 4, the connecting rod 7 of the new second rod body 4 is correspondingly inserted into the connecting part, one surface of the round opening 17 on the connecting rod 7 needs to be aligned with the first thread groove 14, when the connecting rod 7 completely enters the connecting groove 6, the screw 15 is put into the first thread groove 14, the screw 15 is twisted, the screw 15 completely enters the first thread groove 14, the cylinder 16 enters the round opening 17, and the second rod body 4 is fixed.

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.

Claims

1. The utility model provides a sewing machine take-up mechanism, includes take-up lever (1) and take-up crank (2), its characterized in that: the take-up lever (1) comprises a first lever body (3) and a second lever body (4), be equipped with two circular slots (5) on the first lever body (3), be equipped with spread groove (6) on the position of the first lever body (3) and the contact of second lever body (4), be equipped with connecting rod (7) that correspond with spread groove (6) on the second lever body (4), take-up crank (2) comprise spliced pole (8), circular lug (9) and baffle (10), spliced pole (8) fixed mounting is in the one end of baffle (10) one side, the other end at baffle (10) opposite side is fixed in circular lug (9), just spliced pole (8) are located first lever body (3) one of them circular slot (5) to rotate with first lever body (3) in circular slot (5) and be connected, be equipped with its needle bar connecting rod (11) of rotating the connection on circular lug (9), be equipped with thread connecting rod (12) on the first lever body (3), just the one end of take-up connecting rod (12) is located first lever body (3) and first lever body (3) rotates and be connected with first lever body (3).

2. The thread take-up mechanism of a sewing machine as claimed in claim 1, wherein: the end part of the second rod body (4) is provided with four wire passing holes (13).

3. The thread take-up mechanism of a sewing machine as claimed in claim 1, wherein: the connecting groove (6) and the connecting rod (7) are both arranged in a regular hexagon.

4. The thread take-up mechanism of a sewing machine as claimed in claim 1, wherein: be equipped with on the first body of rod (3) first thread groove (14) with spread groove (6) intercommunication, be equipped with in first thread groove (14) with screw rod (15) of first thread groove (14) looks adaptation, just the tip of screw rod (15) is equipped with cylinder (16), just one side on connecting rod (7) is equipped with round mouth (17) with cylinder (16) looks adaptation.

5. The thread take-up mechanism of a sewing machine as claimed in claim 1, wherein: a second thread groove (18) is arranged in the round bump (9), and a screw (19) for limiting the needle rod connecting rod (11) is arranged in the second thread groove (18).