Anti-shake assembly for main shaft of flat seaming machine

Abstract

The utility model discloses an anti-shake assembly for a main shaft of a flat seaming machine, which relates to the technical field of main shafts of flat seaming machines and comprises a first main shaft of the flat seaming machine. A connecting sleeve is arranged on the surface of the front end of the first flat seaming machine main shaft, a rolling groove is formed in the surface of the front end of the connecting sleeve, a ball is arranged in the rolling groove, the ball is in rolling connection with the first flat seaming machine main shaft, a limiting telescopic rod is arranged at the rear end of the connecting sleeve, and a connecting block is arranged at the rear end of the limiting telescopic rod. Compared with an existing common flat seaming machine main shaft, the flat seaming machine main shaft anti-shake assembly has the advantages that through the arrangement of the limiting telescopic rod, the balls can be attached to the surface of the first flat seaming machine main shaft by resetting and jacking up the connecting sleeve, vertical jumping of the first flat seaming machine main shaft during rotation can be effectively relieved, the stability of the first flat seaming machine main shaft is improved, and the service life of the first flat seaming machine main shaft is prolonged. And through the arrangement of the balls, the anti-shaking device can be rotationally connected with the first main shaft of the flat seaming machine, so that the friction resistance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of main shafts of interlock sewing machines, in particular to an anti-shake component for the main shaft of interlock sewing machines. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm, and the sewing speed is fast and easy to use. In recent years, industrial sewing machines have developed rapidly. Among them, interlock sewing machines are also called special sewing machines. The stitches they sew are chain sewing stitches, which are mostly used for rolling collars, hemming, folding edges, interlock seams, splicing seams, and trims of knitted garments. When the interlock sewing machine is working, the spindle works as a driving device.

[0003] In the existing main shaft of the interlock sewing machine, if the main shaft of the interlock sewing machine is too long, the rotating main shaft will have a slight up and down jump when the interlock sewing machine is working. If it cannot be controlled in time, it will affect the normal operation of the interlock sewing machine.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and an anti-shake component for the main shaft of a flat sewing machine is proposed. Utility Model Content

[0005] The utility model aims to provide a main shaft anti-shake assembly for a flat sewing machine to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stretch sewing machine main shaft anti-shake assembly, including a stretch sewing machine main shaft, a connecting sleeve is provided on the front end surface of the stretch sewing machine main shaft, and a rolling groove is opened on the front end surface of the connecting sleeve, a ball is provided inside the rolling groove, and the ball is rollingly connected to the stretch sewing machine main shaft, a limiting telescopic rod is provided at the rear end of the connecting sleeve, and a connecting block is provided at the rear end of the limiting telescopic rod, and a buffer spring is provided on the surface of the limiting telescopic rod.

[0007] Preferably, a limiting slide groove is provided at the rear end of the surface of the main shaft of the interlock sewing machine, and a positioning hole is provided on the surface of the limiting slide groove.

[0008] Preferably, a second stretch sewing machine main shaft is arranged at the rear end of the first stretch sewing machine main shaft, and a slot is provided on the surface of the second stretch sewing machine main shaft.

[0009] Preferably, a limit strip is provided on the inner wall of the slot, and the limit strip is slidably connected to the limit slide groove.

[0010] Preferably, a fixing bolt is provided on the front end surface of the second main shaft of the interlock sewing machine, and the second main shaft of the interlock sewing machine is fixedly connected to the first main shaft of the interlock sewing machine by the fixing bolt.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model is provided with the stretch sewing machine main shaft 1, the connecting sleeve, the rolling groove, the ball, the limit telescopic rod, the buffer spring and the connecting block. Through the setting of the limit telescopic rod, the ball can be attached to the surface of the stretch sewing machine main shaft 1 by resetting and lifting the connecting sleeve, which can effectively slow down the up and down jumping of the stretch sewing machine main shaft 1 when rotating, and achieve the anti-shake effect. Through the setting of the ball, it can be rotatably connected with the stretch sewing machine main shaft 1, reduce the friction resistance, reduce the wear of the stretch sewing machine main shaft 1, and increase the service life of the stretch sewing machine main shaft 1;

[0013] 2. The utility model arranges a limiting slide groove, a positioning hole, a second stretch sewing machine main shaft, a slot, a limiting strip and a fixing bolt. Through the arrangement of the limiting slide groove, the first stretch sewing machine main shaft can be slid backward into the second stretch sewing machine main shaft through the limiting slide groove according to the models of different shed sewing machines to control the length of the stretch sewing machine main shaft and improve the adaptability of the stretch sewing machine main shaft. At the same time, the shorter the length of the stretch sewing machine main shaft is, the less likely it is to jump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the anti-shake component of the utility model;

[0016] Figure 3 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 4 It is a schematic diagram of the main shaft structure of the interlock sewing machine of the utility model.

[0018] In the figure: 1. Main shaft of the interlock sewing machine 1; 2. Connecting sleeve; 201. Rolling groove; 202. Ball bearing; 203. Limit telescopic rod; 204. Buffer spring; 205. Connecting block; 3. Limiting slide groove; 301. Positioning hole; 4. Main shaft of the interlock sewing machine 2; 401. Slot; 402. Limiting strip; 403. Fixing bolt. DETAILED DESCRIPTION

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figures 1 - 2 shown, a vibration-proof component for the main shaft of an overlock sewing machine includes a first overlock sewing machine main shaft 1. A connecting sleeve 2 is provided on the front end surface of the first overlock sewing machine main shaft 1, and a rolling groove 201 is opened on the front end surface of the connecting sleeve 2. The advantage of this setting is that through the setting of the connecting sleeve 2, the surface of the first overlock sewing machine main shaft 1 can be wrapped, reducing the runout generated by the first overlock sewing machine main shaft 1.

[0021] Furthermore, a ball 202 is provided inside the rolling groove 201, and the ball 202 is in rolling connection with the first overlock sewing machine main shaft 1. The advantage of this setting is that through the setting of the ball 202, by rotatably connecting with the first overlock sewing machine main shaft 1, the frictional resistance can be reduced, the wear of the first overlock sewing machine main shaft 1 can be reduced, and the service life of the first overlock sewing machine main shaft 1 can be improved.

[0022] Furthermore, a limit telescopic rod 203 is provided at the rear end of the connecting sleeve 2, a connecting block 205 is provided at the rear end of the limit telescopic rod 203, and a buffer spring 204 is provided on the surface of the limit telescopic rod 203. The advantage of this setting is that through the setting of the limit telescopic rod 203, the connecting sleeve 2 can be reset and jacked up to make the ball 202 fit on the surface of the first overlock sewing machine main shaft 1, which can effectively slow down the up and down runout when the first overlock sewing machine main shaft 1 rotates, achieving the vibration-proof effect.

[0023] Furthermore, a limit sliding groove 3 is opened on the rear end surface of the first overlock sewing machine main shaft 1, and a positioning hole 301 is opened on the surface of the limit sliding groove 3. The advantage of this setting is that through the setting of the limit sliding groove 3, the first overlock sewing machine main shaft 1 can be slid backward into the second overlock sewing machine main shaft 4 through the limit sliding groove 3 according to the models of different overlock sewing machines to control the length of the overlock sewing machine main shaft, improving the adaptability of the overlock sewing machine main shaft. At the same time, the shorter the length of the overlock sewing machine main shaft, the less likely it is to generate runout.

[0024] As Figures 3 - 4 shown, a second overlock sewing machine main shaft 4 is provided at the rear end of the first overlock sewing machine main shaft 1. A slot 401 is opened on the surface of the second overlock sewing machine main shaft 4. A limit strip 402 is provided on the inner wall of the slot 401, and the limit strip 402 is in sliding connection with the limit sliding groove 3. The advantage of this setting is that through the setting of the limit strip 402, the rotation of the second overlock sewing machine main shaft 4 can be restricted.

[0025] Further, a fixing bolt 403 is provided on the front end surface of the second overlock sewing machine main shaft 4, and the second overlock sewing machine main shaft 4 and the first overlock sewing machine main shaft 1 are fixedly connected through the fixing bolt 403. The advantage of this setting is that the second overlock sewing machine main shaft 4 and the first overlock sewing machine main shaft 1 can be fixed through the setting of the fixing bolt 403.

[0026] Working principle: When using the anti-vibration component of the overlock sewing machine main shaft, first, according to the usage requirements of the overlock sewing machine, after adjusting the length of the overlock sewing machine main shaft by sliding the first overlock sewing machine main shaft 1 through the limit sliding groove 3 inside the second overlock sewing machine main shaft 4, when the fixing bolt 403 is screwed into the positioning hole 301 for fixing and then installed. When the overlock sewing machine main shaft rotates, if there is an up-and-down jump, the connecting sleeve 2 presses the buffer spring 204 backward to slow down the jitter generated by the jump. This is the working principle of the anti-vibration component of the overlock sewing machine main shaft.

Claims

1. A main shaft anti-vibration component of an overlock sewing machine, including the first main shaft (1) of the overlock sewing machine, characterized in that, A connecting sleeve (2) is provided on the front end surface of the first main shaft (1) of the overlock sewing machine, and a rolling groove (201) is formed on the front end surface of the connecting sleeve (2). A ball (202) is arranged inside the rolling groove (201), and the ball (202) is in rolling connection with the first main shaft (1) of the overlock sewing machine. A limit telescopic rod (203) is arranged at the rear end of the connecting sleeve (2), a connecting block (205) is arranged at the rear end of the limit telescopic rod (203), and a buffer spring (204) is arranged on the surface of the limit telescopic rod (203).

2. The anti-vibration component of the main shaft of an overlock sewing machine according to claim 1, characterized in that, A limit sliding groove (3) is formed on the rear end surface of the surface of the first main shaft (1) of the overlock sewing machine, and a positioning hole (301) is formed on the surface of the limit sliding groove (3).

3. The anti-vibration assembly for the main shaft of an overlock sewing machine according to claim 1, characterized in that, A second main shaft (4) of the overlock sewing machine is arranged at the rear end of the first main shaft (1) of the overlock sewing machine, and a slot (401) is formed on the surface of the second main shaft (4) of the overlock sewing machine.

4. The anti-vibration assembly for the main shaft of an overlock sewing machine according to claim 3, characterized in that, A limit strip (402) is arranged on the inner wall of the slot (401), and the limit strip (402) is in sliding connection with the limit sliding groove (3).

5. The anti-vibration assembly for the main shaft of an overlock sewing machine according to claim 3, characterized in that, A fixing bolt (403) is arranged on the front end surface of the second main shaft (4) of the overlock sewing machine, and the second main shaft (4) of the overlock sewing machine and the first main shaft (1) of the overlock sewing machine are fixedly connected through the fixing bolt (403).

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