CN220789049U - Balance wire guide for sewing machine - Google Patents

Abstract

The utility model belongs to the technical field of sewing machines, in particular to a balance wire guide for a sewing machine, which comprises a balance main body, wherein a thread taking-up part is fixedly connected above the balance main body, the other end of the thread taking-up part is fixedly connected with a thread through ring, the side wall of the thread through ring is fixedly connected with a mounting seat, a thread through assembly is mounted on the mounting seat, the thread through assembly comprises a rotating end, and the rotating end is rotationally connected with the mounting seat; compared with the prior art, the sewing thread passing cylinder can be conveniently penetrated, the positioning plug is inserted into the positioning groove through the elastic force of the limiting spring to fix the position of the thread passing cylinder, meanwhile, the phenomenon that the sewing thread falls off due to accidental opening of the thread passing cylinder is avoided, and sewing threads of different specifications can be stably penetrated in the thread passing cylinder by replacing the thread passing cylinder with a cylinder hole of the same size as the sewing thread, so that the sewing thread cannot float greatly during thread picking and sewing.

Description

Balance wire guide for sewing machine

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a balance wire guide for a sewing machine.

Background

The sewing machine mainly comprises an organic needle mechanism, a thread hooking mechanism, a thread taking-up mechanism and a feeding mechanism, wherein the thread taking-up mechanism is an important mechanism for the sewing machine to perform bionic manual sewing. When the existing thread taking-up mechanism of the sewing machine is used, as the diameter of the threading hole of the thread taking-up mechanism of the sewing machine is fixed, some thinner sewing threads have a certain movable space in the threading hole, and when the thread taking-up mechanism of the sewing machine works, the possibility of floating the sewing threads is higher, the trend control of the sewing threads is not stable enough, and the condition of lower sewing precision is easily caused.

The traditional Chinese patent with the bulletin number of CN219260428U discloses a thread picking mechanism of a sewing machine, which relates to the technical field of sewing machines and aims to solve the problem that a plurality of thinner sewing threads have a certain movable space in a threading hole, and when the thread picking mechanism of the sewing machine works, the sewing threads have larger floating probability, and the thread picking mechanism comprises a shaft body A, wherein a picking block is arranged at the inner end of the shaft body A; the rear end of the picking block is provided with a connecting rod; the rear end of the connecting rod is provided with a crank; the crank is provided with a shaft body B; the front end of the top of the picking block is provided with a picking piece; the side surface of the threading head is provided with a wire guide hole; the wire guide is of a conical structure with a large outer end diameter and a small inner end diameter.

With respect to the above and related art, the inventors believe that there are often the following drawbacks: the aperture of the thread passing hole of the thread passing cylinder corresponds to the diameter of the sewing thread, so that the threading is inconvenient due to the small aperture of the thread passing hole when the thread is threaded, the threading efficiency of the sewing thread is affected, the number of the thread passing cylinders is limited, the thread passing cylinder cannot adapt to the use of various sewing threads, the use effect is poor, and the thread passing cylinder needs to be improved; accordingly, a balance wire guide for a sewing machine has been proposed to solve the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects in the prior art and solve the technical problems, the utility model provides a balance wire guide for a sewing machine.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a balance wire guide for a sewing machine, which comprises a balance main body, wherein a thread taking-up part is fixedly connected above the balance main body, the other end of the thread taking-up part is fixedly connected with a thread threading ring, the side wall of the thread threading ring is fixedly connected with a mounting seat, a thread threading assembly is arranged on the mounting seat and comprises a rotating end, the rotating end is rotationally connected with the mounting seat, a plurality of thread threading cylinders which are annularly distributed are arranged on the side wall of the rotating end, the diameters of inner cylinder holes of the thread threading cylinders are different, the thread threading cylinders are connected with the rotating end through a connecting assembly, the connecting assembly comprises a T-shaped connecting frame, the connecting frame is fixedly connected with the outer wall of the thread threading cylinder, when the sewing threads with different specifications are required to be replaced, the positioning plug is pulled outwards, the thread passing cylinder corresponding to the diameter of the sewing thread is selected, and the thread passing cylinder can be opened or closed, so that the sewing threads can pass through conveniently, then rotate to the thread passing ring, the limiting frame is loosened, the positioning plug is inserted into the positioning groove through the elastic force of the limiting spring, the position of the thread passing cylinder is fixed, the sewing threads are prevented from falling off due to accidental opening of the thread passing cylinder, the thread passing cylinder with the same size cylinder hole as the sewing threads is replaced, and therefore the sewing threads with different specifications can be stably passed through the thread passing cylinder, and the sewing threads cannot greatly float when the thread is picked and sewn.

Preferably, the wire passing cylinder consists of a first cylinder body and a second cylinder body, and one ends of the first cylinder body and the second cylinder body are connected through a shaft in a rotating way so as to facilitate opening of the first cylinder body and the second cylinder body.

Preferably, the opposite sides of the first cylinder and the second cylinder are fixedly connected with supporting springs, and the first cylinder and the second cylinder are propped against each other through the supporting springs.

Preferably, the side walls of the first cylinder and the second cylinder are respectively provided with a positioning groove.

Preferably, the threading assembly further comprises a protruding layer, the protruding layer is fixedly installed at the bottom of the thread picking piece, the side wall of the protruding layer is connected with a positioning plug in a sliding mode, and a limiting spring is sleeved on the surface of the positioning plug.

Preferably, the side wall of the wire passing cylinder is fixedly connected with a handle, and the handle is convenient for pushing the wire passing cylinder to open.

Preferably, the bottom of protruding layer is connected with the spacing through torsional spring pivot rotation, and the spacing supports protruding layer through the torsional spring to make spacing laminating wire passing section of thick bamboo bottom of wire loop department, and then when changing wire passing section of thick bamboo, support the spacing through the rotation of wire passing section of thick bamboo, make the locating plug aim at the constant head tank, make things convenient for the connection of both.

Preferably, the connecting assembly further comprises a plurality of T-shaped connecting grooves, the connecting grooves are formed in the surfaces of the rotating ends, the connecting frames are inserted into the connecting grooves, and the surfaces of the rotating ends are threaded.

Preferably, the connecting assembly further comprises a limiting cap, the limiting cap is in threaded connection with the rotating end, the connecting frame is inserted into the connecting groove, the limiting cap is connected with the rotating end to be fixed, the thread passing cylinder is connected with the rotating end, when thread passing cylinder holes on the rotating end are not matched with sewing threads, a new thread passing cylinder can be replaced, the connecting assembly is suitable for the wire requirements of various sewing threads, and the use flexibility of the device is improved.

Preferably, the balance main body comprises a first shaft body, the first shaft body is fixedly connected with a picking block, the side wall of the picking block is rotationally connected with a connecting rod, the other end of the connecting rod is rotationally connected with a crank, two sides of the crank are respectively fixedly connected with a second shaft body, the first shaft body and the second shaft body are rotationally arranged at a proper position of the sewing machine and are driven to swing up and down by the crank, and the crank is connected with a balance transmission mechanism of the sewing machine through a transmission synchronous pulley to carry out transmission, so that a thread picking piece works to realize thread picking work.

The utility model has the advantages that:

1. compared with the prior art, the sewing thread passing cylinder can be conveniently penetrated, the positioning plug is inserted into the positioning groove through the elastic force of the limiting spring to fix the position of the thread passing cylinder, meanwhile, the phenomenon that the sewing thread falls off due to accidental opening of the thread passing cylinder is avoided, and sewing threads of different specifications can be stably penetrated in the thread passing cylinder by replacing the thread passing cylinder with a cylinder hole of the same size as the sewing thread, so that the sewing thread cannot float greatly during thread picking and sewing.

2. According to the utility model, the connecting frame is inserted into the connecting groove and is connected with the limiting cap and the rotating end for fixing, so that the thread passing cylinder is connected with the rotating end, and when the thread passing cylinder hole on the rotating end is not matched with the sewing thread, a new thread passing cylinder can be replaced, thereby being suitable for the wire requirements of various sewing threads and improving the use flexibility of the device.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the main structure of the balance of the present utility model;

FIG. 3 is a schematic view of the threading assembly of the present utility model;

FIG. 4 is a bottom view of FIG. 3 in accordance with the present utility model;

fig. 5 is a schematic structural view of a connecting assembly according to the present utility model.

In the figure: 1. a balance body; 11. a first shaft body; 12. selecting blocks; 13. a connecting rod; 14. a crank; 15. a second shaft body; 2. a thread take-up member; 3. threading a wire ring; 4. a mounting base; 5. a threading assembly; 51. a rotating end; 52. a wire passing cylinder; 53. a positioning groove; 54. a bump layer; 55. positioning a plug; 56. a limit spring; 57. a handle; 58. a limiting frame; 521. a first cylinder body; 522. a second cylinder; 523. a support spring; 6. a connection assembly; 61. a connecting frame; 62. a connecting groove; 63. and a limit cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a balance wire guide for a sewing machine comprises a balance main body 1, a thread taking-up member 2 is fixedly connected above the balance main body 1, the other end of the thread taking-up member 2 is fixedly connected with a thread threading ring 3, the side wall of the thread threading ring 3 is fixedly connected with a mounting seat 4, a thread threading assembly 5 is arranged on the mounting seat 4, the thread threading assembly 5 comprises a rotating end 51, the rotating end 51 is rotationally connected with the mounting seat 4, a plurality of thread threading drums 52 distributed in a ring shape are arranged on the side wall of the rotating end 51, the diameters of inner drum holes of the thread threading drums 52 are different, the thread threading drums 52 are connected with the rotating end 51 through a connecting assembly 6, the connecting assembly 6 comprises a T-shaped connecting frame 61, the connecting frame 61 is fixedly connected with the outer wall of the thread threading drum 52, when the sewing threads with different specifications are required to be replaced, the positioning plug 55 is pulled outwards, the thread passing cylinder 52 with the cylinder holes corresponding to the diameters of the sewing threads is selected, compared with the prior art, the thread passing cylinder 52 can be opened and closed, the sewing threads can pass through conveniently, then the thread passing cylinder is rotated to the thread passing ring 3, the limiting frame 58 is loosened, the positioning plug 55 is inserted into the positioning groove 53 through the elastic force of the limiting spring 56, the position of the thread passing cylinder 52 is fixed, meanwhile, the falling off of the sewing threads caused by accidental opening of the thread passing cylinder 52 is avoided, and the thread passing cylinder 52 with the cylinder holes with the same size as the sewing threads is replaced, so that the sewing threads with different specifications can stably pass through the thread passing cylinder 52, and the sewing threads cannot float greatly when the threads are picked up for sewing.

The wire passing cylinder 52 is composed of a first cylinder 521 and a second cylinder 522, and one ends of the first cylinder 521 and the second cylinder 522 are connected by a shaft in a rotating manner, so that the first cylinder 521 and the second cylinder 522 can be conveniently opened.

The opposite sides of the first 521 and the second 522 are fixedly connected with a supporting spring 523, and the first 521 and the second 522 are mutually propped against each other through the supporting spring 523.

The side walls of the first 521 and the second 522 are respectively provided with a positioning groove 53.

The threading assembly 5 further comprises a protruding layer 54, the protruding layer 54 is fixedly arranged at the bottom of the thread picking piece 2, the side wall of the protruding layer 54 is connected with a positioning plug 55 in a sliding mode, and a limiting spring 56 is sleeved on the surface of the positioning plug 55.

The side wall of the wire passing barrel 52 is fixedly connected with a handle 57, and the handle 57 is convenient for pushing the wire passing barrel 52 to be opened.

The bottom of protruding layer 54 is connected with spacing 58 through torsional spring pivot rotation, and spacing 58 supports protruding layer 54 through the torsional spring to make spacing 58 laminating wire passing through the line section of thick bamboo 52 bottom of line 3 department, and then when changing wire passing through line section of thick bamboo 52, through with wire passing through line section of thick bamboo 52 rotatory support spacing 58, make the alignment of locating plug 55 alignment constant head tank 53, make things convenient for the connection of both.

The connecting assembly 6 further comprises a plurality of T-shaped connecting grooves 62, the connecting grooves 62 are formed in the surface of the rotating end 51, the connecting frame 61 is inserted into the connecting grooves 62, and threads are formed in the surface of the rotating end 51 through tapping.

The connecting assembly 6 further comprises a limiting cap 63, the limiting cap 63 is in threaded connection with the rotating end 51, the connecting frame 61 is inserted into the connecting groove 62 and is connected with the limiting cap 63 and the rotating end 51 to be fixed, the thread passing cylinder 52 is connected with the rotating end 51, when the thread passing cylinder 52 cylinder hole on the rotating end 51 is not matched with sewing threads, the thread passing cylinder 52 can be replaced, the connecting assembly is suitable for the wire requirements of various sewing threads, and the flexibility of the device in use is improved.

The balance main body 1 comprises a first shaft body 11, the first shaft body 11 is fixedly connected with a picking block 12, the side wall of the picking block 12 is rotationally connected with a connecting rod 13, the other end of the connecting rod 13 is rotationally connected with a crank 14, two sides of the crank 14 are respectively and fixedly connected with a second shaft body 15, the first shaft body 11 and the second shaft body 15 are rotationally arranged at a proper position of the sewing machine and are driven to swing up and down by the crank 14, and the crank 14 is connected with a balance transmission mechanism of the sewing machine through a transmission synchronous pulley to carry out transmission, so that the thread picking piece 2 works to realize thread picking work.

All electric components in the scheme are connected with an adaptive power supply through wires by a person skilled in the art, and an appropriate controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequences, and the electric connection is completed by referring to the following working principles in the working sequence among the electric components, wherein the detailed connection means are known in the art, and the following main description of the working principles and processes is omitted from the description of electric control.

None of the parts of the device are the same as or can be implemented using prior art.

The working principle is that the first shaft body 11 and the second shaft body 15 are rotatably arranged at the proper positions of the sewing machine, the crank 14 is driven to swing up and down, the crank 14 is connected with a balance transmission mechanism of the sewing machine through a transmission synchronous pulley to transmit, so that the thread picking piece 2 works to realize thread picking work, when sewing threads with different specifications are required to be replaced, the positioning plug 55 is pulled outwards, the thread passing cylinder 52 with a cylinder hole corresponding to the diameter of the sewing thread is selected, compared with the prior art, the thread passing cylinder 52 can be opened and closed, the sewing threads are conveniently passed, then the thread passing cylinder 52 is rotated to the thread threading ring 3, the limiting frame 58 is released, the positioning plug 55 is inserted into the positioning groove 53 through the elastic force of the limiting spring 56, the position of the thread passing cylinder 52 is fixed, and simultaneously, the falling off of the sewing threads caused by accidental opening of the thread passing cylinder 52 is avoided, and the sewing threads with different specifications can be stably passed in the thread passing cylinder 52, and the sewing threads with the same size can not float when the sewing threads are picked;

the limiting frame 58 is propped against the protruding layer 54 through the torsion spring, and the limiting frame 58 is attached to the bottom of the wire passing barrel 52 at the wire passing ring 3, so that when the wire passing barrel 52 is replaced, the positioning plug 55 is aligned to the positioning groove 53 by rotating the wire passing barrel 52 against the limiting frame 58, and the connection of the positioning plug and the positioning groove is facilitated;

through inserting link 61 in the inside of spread groove 62 to be connected with spacing cap 63 and rotatory end 51 and fix, and then be connected with the rotatory end 51 with crossing a line section of thick bamboo 52, when crossing a line section of thick bamboo 52 barrel hole and sewing thread all mismatch on the rotatory end 51, can change new line section of thick bamboo 52 that crosses, adapt to the wire demand of multiple sewing thread, improve the flexibility that the device used.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (10)

1. Balance wire guide for sewing machine, comprising a balance body (1), characterized in that: the utility model discloses a balance, including balance main part (1), top fixedly connected with take-up (2), the other end fixedly connected with wire loop (3) of take-up (2), the lateral wall fixedly connected with mount pad (4) of wire loop (3), install threading subassembly (5) on mount pad (4), threading subassembly (5) are including rotating end (51), rotating end (51) are connected with mount pad (4) rotation, a plurality of wire passing cylinder (52) that are annular distribution are installed to the lateral wall of rotating end (51), wire passing cylinder (52) inside barrel bore diameter variation, wire passing cylinder (52) are connected through coupling assembling (6) with rotating end (51), coupling assembling (6) are including link (61) of T shape, link (61) and wire passing cylinder (52) outer wall fixed connection.

2. The balance wire guide for a sewing machine of claim 1, wherein: the wire passing cylinder (52) consists of a first cylinder (521) and a second cylinder (522), and one ends of the first cylinder (521) and the second cylinder (522) are connected through a shaft in a rotating way.

3. The balance wire guide for a sewing machine of claim 2, wherein: and a supporting spring (523) is fixedly connected to one side opposite to the first cylinder (521) and the second cylinder (522).

4. The balance wire guide for a sewing machine of claim 2, wherein: positioning grooves (53) are respectively formed in the side walls of the first cylinder (521) and the second cylinder (522).

5. The balance wire guide for a sewing machine of claim 1, wherein: the threading assembly (5) further comprises a protruding layer (54), the protruding layer (54) is fixedly arranged at the bottom of the thread take-up piece (2), the side wall of the protruding layer (54) is connected with a positioning plug (55) in a sliding mode, and a limiting spring (56) is sleeved on the surface of the positioning plug (55).

6. The balance wire guide for a sewing machine of claim 1, wherein: the side wall of the wire passing cylinder (52) is fixedly connected with a handle (57).

7. The balance wire guide for a sewing machine of claim 5, wherein: the bottom of the bulge layer (54) is rotationally connected with a limit frame (58) through a torsion spring rotating shaft.

8. The balance wire guide for a sewing machine of claim 1, wherein: the connecting assembly (6) further comprises a plurality of T-shaped connecting grooves (62), the connecting grooves (62) are formed in the surface of the rotating end (51), the connecting frame (61) is inserted into the connecting grooves (62), and threads are formed in the surface of the rotating end (51) in a tapping mode.

9. The balance wire guide for a sewing machine of claim 8, wherein: the connecting assembly (6) further comprises a limiting cap (63), and the limiting cap (63) is in threaded connection with the rotating end (51).

10. The balance wire guide for a sewing machine of claim 1, wherein: balance main part (1) is including axis body one (11), axis body one (11) fixedly connected with chooses piece (12), the lateral wall rotation of choosing piece (12) is connected with connecting rod (13), the other end rotation of connecting rod (13) is connected with crank (14), the both sides of crank (14) are fixedly connected with axis body two (15) respectively.