CN219297768U

CN219297768U - Sleeve in main shaft of sewing machine

Info

Publication number: CN219297768U
Application number: CN202320348703.8U
Authority: CN
Inventors: 李博洋; 王丽娟; 孙宏宇; 黄金萍; 高丽娜
Original assignee: Dandong Boyang Precision Machinery Co ltd
Current assignee: Dandong Boyang Precision Machinery Co ltd
Priority date: 2023-03-01
Filing date: 2023-03-01
Publication date: 2023-07-04
Anticipated expiration: 2033-03-01

Abstract

The utility model provides a sleeve in a main shaft of a sewing machine, which relates to the technical field of sewing machines and comprises a first main shaft and a second main shaft, wherein the outer surfaces of the first main shaft and the second main shaft are close to the center, a chute is formed in the inner surface wall of the chute in a sliding manner, a round rod is fixedly connected to the outer surface of the round rod, and a first connecting rod is fixedly connected to the center of the bottom of the first main shaft.

Description

Sleeve in main shaft of sewing machine

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a sleeve in a main shaft of a sewing machine.

Background

The mechanism for conveying, recovering needle and tightening stitch can include cam thread picking mechanism, connecting rod thread picking mechanism, slide rod thread picking mechanism, rotary thread picking mechanism and needle rod selecting mechanism.

In the using process of the existing sewing machine, the main shaft is continuously vibrated up and down, and the impact force is different, so that if the time is long, the phenomenon that the middle sleeve is broken due to the overlarge impact force of the main shaft can be possibly caused, and the sewing machine can not normally run.

Disclosure of Invention

The utility model aims to solve the problem that in the prior art, the main shaft can vibrate up and down continuously and the impact force is different, so that if the time is long, the middle sleeve can be broken due to overlarge impact force of the main shaft, and the main shaft of the sewing machine can not normally run.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a sleeve in sewing machine main shaft, includes first main shaft and second main shaft, the surface of first main shaft and second main shaft is close to the center and begins to have the spout, the interior table wall sliding connection of spout has the round bar, the surface fixedly connected with well sleeve body of round bar, the bottom center department fixedly connected with head rod of first main shaft, the top center department fixedly connected with first slide bar of second main shaft, the surface cover of first slide bar is equipped with first spring, the surface both sides position fixedly connected with second connecting rod of head rod, the top terminal surface and the bottom terminal surface fixedly connected with second slide bar of second connecting rod, the surface cover of second slide bar is equipped with the second spring.

Preferably, the flange is fixedly arranged at the center of the top of the first main shaft, the fixing blocks are fixedly connected to the outer surface of the first main shaft close to the two sides of the top, and the threaded holes are formed in the center of the top of the fixing blocks.

Preferably, a base is fixedly arranged at the center of the bottom of the second main shaft, and an oil inlet is formed in the center of the outer surface of the middle sleeve body.

Preferably, the extending end of the first sliding rod is fixedly connected with the bottom end face of the first connecting rod, and the extending end of the second sliding rod is fixedly connected with the bottom end face of the first main shaft and the top end face of the second main shaft.

Preferably, one end of the first spring is fixedly connected with the outer surface of the first sliding rod, and the other end of the first spring is fixedly connected with the top end face of the second main shaft.

Preferably, one end of the second spring is fixedly connected with the outer surface of the second sliding rod, and the other end of the second spring is fixedly connected with the bottom end face of the first main shaft and the top end face of the second main shaft.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, when the device is installed in the sewing machine, and in the running process, the first spring and the second spring are arranged, so that the force of the first main shaft and the second main shaft when moving up and down can be reduced, the impact force can be given off, the toughness of the first main shaft and the second main shaft can be improved, when the force of the first main shaft and the second main shaft when moving up and down is given off, the phenomenon that the middle sleeve body is broken due to overlarge impact force is avoided, the service life of the middle sleeve body can be prolonged, and the subsequent sewing machine can run stably all the time.

2. In the utility model, the threaded holes and the fixed blocks are arranged, so that the device is convenient for a user to install in the sewing machine, the installation time can be reduced, the device is convenient for the user to detach or replace, and the first slide bar and the second slide bar are arranged, so that the force can be provided for the first connecting bar and the second connecting bar.

Drawings

Fig. 1 is a schematic perspective view of a sleeve in a main shaft of a sewing machine according to the present utility model;

FIG. 2 is a schematic cross-sectional view of the sleeve of FIG. 1 in a main shaft of a sewing machine according to the present utility model;

fig. 3 is an enlarged view at a in fig. 2.

Legend description: 1. a first spindle; 2. a fixed block; 3. a flange; 4. A threaded hole; 5. A chute; 6. A middle sleeve body; 7. An oil inlet hole; 8. A second spindle; 9. A base; 10. a round bar; 11. a second connecting rod; 12. a second spring; 13. a first spring; 14. a first slide bar; 15. a second slide bar; 16. and a first connecting rod.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Embodiment 1, as shown in fig. 1-3, a sleeve in a sewing machine main shaft, which comprises a first main shaft 1 and a second main shaft 8, wherein a chute 5 is arranged on the outer surfaces of the first main shaft 1 and the second main shaft 8 near the center, a round rod 10 is connected to the inner surface wall of the chute 5 in a sliding manner, a middle sleeve body 6 is fixedly connected to the outer surface of the round rod 10, a first connecting rod 16 is fixedly connected to the bottom center of the first main shaft 1, a first sliding rod 14 is fixedly connected to the top center of the second main shaft 8, a first spring 13 is sleeved on the outer surface of the first sliding rod 14, a second connecting rod 11 is fixedly connected to the two sides of the outer surface of the first connecting rod 16, a second sliding rod 15 is fixedly connected to the top end surface and the bottom end surface of the second connecting rod 11, and a second spring 12 is sleeved on the outer surface of the second sliding rod 15.

The effect that its whole embodiment 1 reaches is, when first main shaft 1 and second main shaft 8 reciprocate, its round bar 10 then can make a round trip movement in spout 5 for well sleeve body 6 can not interfere first main shaft 1 and second main shaft 8, and the setting of first spring 13 and second spring 12 realizes can giving the impact force that reciprocates with first main shaft 1 and second main shaft 8 and reduces, makes can giving the impact force and unloads, thereby has guaranteed that well sleeve body 6 does not have the circumstances emergence of fracture, makes the live time of this device prolonged.

In embodiment 2, as shown in fig. 1-3, a flange 3 is fixedly installed at the top center of the first spindle 1, a fixed block 2 is fixedly connected to the outer surface of the first spindle 1 near the two sides of the top, a threaded hole 4 is formed at the top center of the fixed block 2, a base 9 is fixedly installed at the bottom center of the second spindle 8, an oil inlet 7 is formed at the outer surface center of the middle sleeve body 6, an extending end of the first slide bar 14 is fixedly connected with the bottom end face of the first connecting bar 16, an extending end of the second slide bar 15 is fixedly connected with the bottom end face of the first spindle 1 and the top end face of the second spindle 8, one end of the first spring 13 is fixedly connected with the outer surface of the first slide bar 14, the other end of the first spring 13 is fixedly connected with the top end face of the second spindle 8, one end of the second spring 12 is fixedly connected with the outer surface of the second slide bar 15, and the other end of the second spring 12 is fixedly connected with the bottom end face of the first spindle 1 and the top end face of the second spindle 8.

The effect that its whole embodiment 2 reached is, the setting of flange 3 realizes that convenient to use person is connected this device and conveying mechanism through flange 3 for reduce the time of installing this device to sewing machine, when needing to install this device to sewing machine inside, then screw in corresponding screw hole 4 with the bolt, then just realize spacing to fixed block 2, thereby the user of being convenient for installs this device to sewing machine's inside, the setting of inlet port 7, the realization is convenient for the user can pour lubricating oil into on the surface of first main shaft 1, second main shaft 8 and well sleeve body 6, realize that first main shaft 1 and second main shaft 8 reciprocate, its first slide bar 14 and second slide bar 15 also can receive the power, thereby change the state of self and can make a round trip to stretch out and draw back, realize that first spring 13 and second spring 12 can not appear breaking away from under any state.

Working principle: the first slide bar 14, the second slide bar 15, the first spring 13 and the second spring 12 can change the state of the first slide bar 14, the second slide bar 15 can be stretched back and forth, the first spring 13 and the second spring 12 can be detached by the impact force, so that the impact force born by the first spindle 1 and the second spindle 8 can be reduced, and the phenomenon that the middle sleeve body 6 is broken due to overlarge impact force can be avoided after the impact force is detached after the impact force is released.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matter of the present utility model will still fall within the protection scope of the technical solution of the present utility model.

Claims

1. The utility model provides a sleeve in sewing machine main shaft, includes first main shaft (1) and second main shaft (8), its characterized in that: the outer surface of first main shaft (1) and second main shaft (8) is close to the center and begins to have spout (5), interior table wall sliding connection of spout (5) has round bar (10), sleeve body (6) in the surface fixedly connected with of round bar (10), the bottom center department fixedly connected with head rod (16) of first main shaft (1), the top center department fixedly connected with first slide bar (14) of second main shaft (8), the surface cover of first slide bar (14) is equipped with first spring (13), the surface both sides position fixedly connected with second connecting rod (11) of head rod (16), the top terminal surface and the bottom terminal surface fixedly connected with second slide bar (15) of second connecting rod (11), the surface cover of second slide bar (15) is equipped with second spring (12).

2. The sewing machine spindle middle sleeve according to claim 1, wherein: the flange (3) is fixedly arranged at the center of the top of the first main shaft (1), the fixing blocks (2) are fixedly connected to the outer surface of the first main shaft (1) close to the two sides of the top, and the threaded holes (4) are formed in the center of the top of the fixing blocks (2).

3. The sewing machine spindle middle sleeve according to claim 1, wherein: the bottom center of the second main shaft (8) is fixedly provided with a base (9), and the center of the outer surface of the middle sleeve body (6) is provided with an oil inlet (7).

4. The sewing machine spindle middle sleeve according to claim 1, wherein: the extending end of the first sliding rod (14) is fixedly connected with the bottom end face of the first connecting rod (16), and the extending end of the second sliding rod (15) is fixedly connected with the bottom end face of the first main shaft (1) and the top end face of the second main shaft (8).

5. The sewing machine spindle middle sleeve according to claim 1, wherein: one end of the first spring (13) is fixedly connected with the outer surface of the first sliding rod (14), and the other end of the first spring (13) is fixedly connected with the top end face of the second main shaft (8).

6. The sewing machine spindle middle sleeve according to claim 1, wherein: one end of the second spring (12) is fixedly connected with the outer surface of the second sliding rod (15), and the other end of the second spring (12) is fixedly connected with the bottom end face of the first main shaft (1) and the top end face of the second main shaft (8).