CN221117879U

CN221117879U - Thread loosening device of sewing machine

Info

Publication number: CN221117879U
Application number: CN202322692606.3U
Authority: CN
Inventors: 胡宏伟; 孔令凤
Original assignee: Bengbu Yuying Garment Co ltd
Current assignee: Bengbu Yuying Garment Co ltd
Priority date: 2023-10-07
Filing date: 2023-10-07
Publication date: 2024-06-11
Anticipated expiration: 2033-10-07

Abstract

The utility model relates to a thread loosening device of a sewing machine, which comprises a base, wherein the base is arranged on external equipment, an adjusting mechanism is arranged on the base, the adjusting mechanism comprises two guide rods, sliding blocks, a collision block, a lubricating sleeve, bobbins, an inserting section, an adjusting spring, a thread section and a fixing mechanism, the two guide rods are respectively arranged on the base, the sliding blocks are connected with the two guide rods in a sliding manner, the collision block is arranged on the sliding blocks, the lubricating sleeve is arranged on the collision block, when the sewing thread is required to be fixed, the bobbins can be clamped with different types of sewing threads due to a plurality of clamping grooves on the bobbins, the two bobbins can be fixed through the adjusting spring, and therefore the elasticity of the adjusting spring can be adjusted, the clamping force between the two bobbins can be changed, and the adjusting effect is further achieved.

Description

Thread loosening device of sewing machine

Technical Field

The utility model relates to the technical field of thread loosening of sewing machines, in particular to a thread loosening device of a sewing machine.

Background

Under the current technical environment, when the sewing machine performs the operations of loosening and clamping the sewing thread, the sewing machine usually needs to be fixed by a spool, and the mechanical operation can realize the tension control of the thread to a certain extent, so that the continuity and the sewing quality of the sewing process are ensured, however, the prior equipment has some limitations in practical use.

Specifically, since the positions of the two bobbins are fixed, the adjustment range of the spring force may be limited, and the magnitude of the spring force directly affects the thread tension, thereby affecting the quality and efficiency of sewing, for example, if the spring force is too large, the thread tension may be too large, so that the sewing thread is easily broken; conversely, if the force of the spring is too small, the tension of the thread may be insufficient, which may result in poor sewing effect, and the sewing thread is easily loosened.

However, because the spool is fixed in position, this means that the force of the spring may not be finely adjusted according to different sewing requirements, which may result in that an ideal thread tension may not be obtained during the sewing process, thereby affecting the sewing effect.

Disclosure of utility model

Aiming at the problems in the prior art, the utility model provides a thread loosening device of a sewing machine, which aims at solving the technical problem that the elasticity cannot be conveniently regulated in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sewing machine's pine line device, includes the base, and the base is installed on external equipment, is provided with adjustment mechanism on the base, adjustment mechanism includes guide bar, sliding block, conflict piece, lubricating sleeve, spool, insert section, adjusting spring, screw thread section and fixed establishment, the guide bar is provided with two, and two the guide bar is installed respectively on the base, sliding block sliding connection is two on the guide bar, conflict piece is installed on the sliding block, and the lubricating sleeve is installed on the conflict piece, and the spool rotates to be connected on the lubricating sleeve, has seted up the card wire casing on the spool, insert section and screw thread section are installed respectively at the both ends of adjusting spring, insert section and screw thread section respectively threaded connection are two on the sliding block, fixed establishment installs on adjusting spring.

Preferably, the fixing mechanism comprises a plurality of intermediate rods and intermediate discs, the intermediate discs are arranged on the adjusting springs, the intermediate rods are respectively connected with the intermediate discs in a threaded mode, and the design of the fixing mechanism ensures the continuity of adjustment.

In a further preferred mode, the inserting section is provided with a limiting disc, the limiting disc is provided with a hexagonal groove, the hexagonal groove and the limiting disc are arranged coaxially, the middle rod is provided with a limiting nut in a threaded mode, the limiting nut is attached to the limiting disc, the limiting disc is attached to the sliding block, and the fixing effect is guaranteed through the design of the limiting disc.

In a further preferred embodiment, the base is provided with an extension sleeve, the guide rod is slidably connected to the extension sleeve, the guide rod is provided with a fixing nut in a threaded manner, the fixing nut is attached to the extension sleeve, and the extension sleeve is designed to ensure the fixing continuity.

In a further preferred embodiment, two sliding blocks are provided, each sliding sleeve is provided with a spool in a reverse rotation mode, the two spools are in reverse engagement with each other, the wire clamping groove is clamped on the sewing thread, and the effect of clamping is guaranteed by the spool in the reverse engagement mode.

In a further preferred aspect, the lubrication sleeve is provided with a lubrication mechanism, the lubrication mechanism comprises a sealing bolt, an oil storage tank is formed in the lubrication sleeve, the sealing bolt is in threaded connection with the oil storage tank, a thrust bearing is mounted on the sealing bolt and is abutted to the spool, and the lubrication mechanism is designed to ensure the convenience of lubrication.

In a further preferred embodiment, the side wall of the lubrication sleeve is provided with a plurality of lubrication holes, and the lubrication holes are respectively communicated in the lubrication groove, and the lubrication holes ensure the flow of the lubricating oil.

Compared with the prior art, the utility model provides a thread loosening device of a sewing machine, which comprises the following components

The beneficial effects are that:

When the sewing thread needs to be fixed, the adjusting mechanism is designed, and due to the plurality of wire clamping grooves on the bobbins, sewing threads of different types can be clamped, the two bobbins can be fixed through the adjusting spring, the elastic force of the adjusting spring can be adjusted, the clamping force between the two bobbins can be changed, and then the adjusting effect is achieved.

The design of the lubrication mechanism is that when lubrication is carried out, the spool can be fixed on the lubrication sleeve due to the fact that the thrust bearing is arranged on the sealing bolt, and then lubricating oil is injected between the lubrication sleeve and the spool through the lubrication hole, so that the lubrication process is completed.

Drawings

FIG. 1 is a schematic view of a thread releasing device of a sewing machine according to the present utility model;

FIG. 2 is a schematic view of the structure of the bobbin of the present utility model;

FIG. 3 is a schematic structural view of a fixing mechanism according to the present utility model;

FIG. 4 is a schematic view of the structure of the interference block according to the present utility model;

fig. 5 is a schematic structural view of a sliding block and a collision block in the present utility model.

In the figure: 1. a base; 2. a guide rod; 3. a sliding block; 4. a collision block; 5. a lubricating sleeve; 6. a spool; 7. an insertion section; 8. an adjusting spring; 9. a threaded section; 10. wire clamping groove; 11. an intermediate lever; 12. an intermediate plate; 13. a limiting disc; 14. a hexagonal groove; 15. a limit nut; 16. extending the sleeve; 17. a fixing nut; 18. a sealing bolt; 19. an oil storage tank; 20. lubrication holes.

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.

Example 1:

Referring to fig. 1-5, a thread loosening device of a sewing machine comprises a base 1, wherein the base 1 is arranged on external equipment, an adjusting mechanism is arranged on the base 1 and comprises guide rods 2, sliding blocks 3, a supporting block 4, a lubrication sleeve 5, a thread spool 6, an inserting section 7, an adjusting spring 8, thread sections 9 and a fixing mechanism, the guide rods 2 are arranged in two, the two guide rods 2 are respectively arranged on the base 1, the sliding blocks 3 are slidably connected on the two guide rods 2, the supporting block 4 is arranged on the sliding blocks 3, the lubrication sleeve 5 is arranged on the supporting block 4, the thread spool 6 is rotatably connected on the lubrication sleeve 5, a thread clamping groove 10 is formed in the thread spool 6, the two ends of the adjusting spring 8 are respectively provided with the inserting section 7 and the thread sections 9, the inserting section 7 and the thread sections 9 are respectively in threaded connection on the two sliding blocks 3, the fixing mechanism is arranged on the adjusting spring 8, the fixing mechanism comprises a plurality of middle rods 11 and middle discs 12, the middle discs 12 are provided with a plurality of middle discs 12, the middle rods 11 are respectively connected with the middle discs 12 in a threaded mode, the inserting section 7 is provided with limiting discs 13, the limiting discs 13 are provided with hexagonal grooves 14, the hexagonal grooves 14 and the limiting discs 13 are arranged coaxially, the middle rods 11 are provided with limiting nuts 15 in a threaded mode, the limiting nuts 15 are attached to the limiting discs 13, the limiting discs 13 are attached to the sliding blocks 3, the base 1 is provided with an extending sleeve 16, the guiding rods 2 are connected with the extending sleeve 16 in a sliding mode, the guiding rods 2 are provided with fixing nuts 17 in a threaded mode, the fixing nuts 17 are attached to the extending sleeve 16, the sliding blocks 3 are provided with two guiding sleeves 5, the bobbins 6 are arranged in the reverse rotation mode, the two bobbins 6 are meshed with each other in the reverse mode, and the wire clamping grooves 10 are clamped on sewing threads.

The lubrication sleeve 5 is provided with a lubrication mechanism, the lubrication mechanism comprises a sealing bolt 18, an oil storage groove 19 is formed in the lubrication sleeve 5, the sealing bolt 18 is in threaded connection with the oil storage groove 19, a thrust bearing is mounted on the sealing bolt 18 and abuts against the spool 6, the side wall of the lubrication sleeve 5 is provided with lubrication holes 20, the lubrication holes 20 are multiple, and the lubrication holes 20 are respectively communicated with the lubrication groove.

Example 2:

Referring to fig. 1 to 5, when the sewing thread is to be fixed on the basis of embodiment 1, the plurality of thread clamping grooves 10 on the bobbins 6 can clamp different types of sewing threads, the two bobbins 6 can be fixed by the adjusting spring 8, when the adjusting spring force is required, the stiffness coefficient of the adjusting spring 8 can be changed by changing the middle rod 11 to connect with the different number of middle discs 12, the spring force of the adjusting spring 8 can be adjusted, thereby ensuring the adjusting continuity, and therefore, the clamping force between the two bobbins 6 can be changed, thereby completing the adjusting effect.

Example 3:

Referring to fig. 1 to 5, in the lubrication of embodiment 2, since the oil storage groove 19 is provided in the lubrication sleeve 5, the lubrication oil can be injected into the oil storage groove 19, and then the seal bolt 18 is screwed into the oil storage groove 19, and since the thrust bearing is mounted on the seal bolt 18, the spool 6 can be fixed to the lubrication sleeve 5, and then the lubrication oil can be injected between the lubrication sleeve 5 and the spool 6 through the lubrication hole 20, thereby completing the lubrication process.

In all the above mentioned solutions, in which the connection between two components can be chosen according to the actual situation, a welded, bolt-and-nut-fitted connection, a bolt-or-screw connection or other known connection means, which are not described in detail herein, where reference is made to a written fixed connection, the preferred consideration is welding, although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that numerous variations, modifications, substitutions and alterations can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a sewing machine's pine line device, includes base (1), and base (1) are installed on external equipment, its characterized in that: be provided with adjustment mechanism on base (1), adjustment mechanism includes guide bar (2), sliding block (3), conflict piece (4), lubricated cover (5), spool (6), insert section (7), adjusting spring (8), screw thread section (9) and fixed establishment, guide bar (2) are provided with two, and two guide bar (2) are installed respectively on base (1), sliding block (3) sliding connection is two on guide bar (2), conflict piece (4) are installed on sliding block (3), lubricated cover (5) are installed on conflict piece (4), spool (6) swivelling joint is on lubricated cover (5), set up card (10) on spool (6), insert section (7) and screw thread section (9) are installed respectively at the both ends of adjusting spring (8), insert section (7) and screw thread section (9) are threaded connection respectively on two on sliding block (3), fixed establishment installs on adjusting spring (8).

2. The thread releasing device of a sewing machine of claim 1, wherein: the fixing mechanism comprises a middle rod (11) and a middle disc (12), wherein a plurality of middle discs (12) are arranged, the middle discs (12) are respectively arranged on the adjusting springs (8), and the middle rod (11) is respectively in threaded connection with the middle discs (12).

3. The thread releasing device of a sewing machine of claim 1, wherein: be equipped with spacing dish (13) on inserting section (7), set up hexagonal groove (14) on spacing dish (13), hexagonal groove (14) and spacing dish (13) are coaxial setting, and the screw thread is equipped with stop nut (15) on intermediate lever (11), and stop nut (15) laminating is on spacing dish (13), and spacing dish (13) laminating is on slider (3).

4. The thread releasing device of a sewing machine of claim 1, wherein: the base (1) is provided with an extension sleeve (16), the guide rod (2) is connected to the extension sleeve (16) in a sliding mode, the guide rod (2) is provided with a fixing nut (17) in a threaded mode, and the fixing nut (17) is attached to the extension sleeve (16).

5. The thread releasing device of a sewing machine of claim 1, wherein: the two sliding blocks (3) are arranged, each lubricating sleeve (5) is provided with a spool (6) in a reverse rotation mode, the two spools (6) are meshed in a reverse mode, and the wire clamping groove (10) is clamped on the sewing thread.

6. The thread releasing device of a sewing machine of claim 1, wherein: the lubricating device is characterized in that a lubricating mechanism is arranged on the lubricating sleeve (5) and comprises a sealing bolt (18), an oil storage groove (19) is formed in the lubricating sleeve (5), the sealing bolt (18) is in threaded connection with the oil storage groove (19), and a thrust bearing is arranged on the sealing bolt (18) and is abutted to the spool (6).

7. The thread releasing device of a sewing machine of claim 6, wherein: the side wall of the lubricating sleeve (5) is provided with a plurality of lubricating holes (20), and the lubricating holes (20) are respectively communicated in the lubricating groove.