Impact-resistant sewing machine spindle

Abstract

The utility model relates to sewing machine field, specifically is a kind of impact resistance sewing machine main shaft, including sewing machine main shaft body, the surface of sewing machine main shaft body is fixedly connected with mounting plate, and the top of mounting plate is provided with impact resistance mechanism;The utility model protects and buffers the vibration of sewing machine main shaft body by rubber block, and when the vibration amplitude of sewing machine main shaft body is larger, rubber block will be pushed and shoved, so that rubber block can be moved by first rotating plate pusher moving block, when moving block moves, small damper, first spring and second spring can buffer the movement of moving block by the elasticity of itself, when buffering sewing machine main shaft body and improving the impact resistance effect of sewing machine main shaft body, it is enough effective, and by wrapping the surface of sewing machine main shaft body, it can be effectively buffered when moving up and down or left and right, increase its impact resistance effect.

Description

Technical Field

[0001] This utility model relates to the field of sewing machines, specifically an impact-resistant sewing machine spindle. Background Technology

[0002] The spindle of a mechanical sewing machine is the core transmission component of the sewing machine, usually mounted horizontally inside the machine head. It is a high-precision machined metal shaft (mostly made of solid steel) that serves as the core hub for power transmission, responsible for accurately transmitting the rotational motion of the handwheel or motor to the various actuators of the sewing machine (such as the needle bar, thread take-up mechanism, shuttle, feed dog, etc.).

[0003] In existing technology, people can use sewing machines to make, process, and repair clothing and other items. When a sewing machine is in use, it mainly relies on the main shaft to drive multiple parts to operate synchronously. However, when the main shaft rotates and is in use, it may generate a certain amount of vertical vibration, which may lead to the breakage of the sewing machine main shaft. In some cases, springs are installed on the surface of the main shaft to protect it and reduce impact. However, the elasticity of the springs alone is not only ineffective in resisting impact, but the main shaft also vibrates slightly from side to side in addition to vertical vibration. This makes it difficult for the springs to provide comprehensive impact resistance and cushioning for the main shaft, and it is still easy for the main shaft to break or break due to vertical or side-to-side vibration. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, relying solely on the elasticity of springs not only results in poor impact resistance, but also in the fact that the main shaft vibrates slightly from side to side during use, in addition to vertical vibration. This makes it insufficient for the main shaft to be fully impact-resistant and buffered by springs alone, and it is still prone to breakage or damage due to vertical or horizontal vibration. This utility model proposes an impact-resistant sewing machine main shaft.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an impact-resistant sewing machine spindle, including a sewing machine spindle body, a mounting plate fixedly connected to the surface of the sewing machine spindle body, an impact-resistant mechanism provided on the top of the mounting plate, and two impact-resistant mechanisms are provided; The impact-resistant mechanism includes a fixed plate, the bottom of which is fixedly connected to the top of a mounting plate. A small damper and a first spring are fixedly connected to one side of the fixed plate. The surface of the first spring is sleeved on the surface of the small damper. A moving block is fixedly connected to one end of the first spring and the small damper. The bottom of the moving block is slidably connected to the top of the mounting plate. An auxiliary component is provided on the top of the sewing machine spindle body.

[0006] Preferably, the auxiliary component includes a first rotating plate, the surface of which is rotatably connected to the inner cavity of the movable block, a fixing block fixedly connected to the top of the mounting plate, a second rotating plate rotatably connected to the inner cavity of the fixing block, a connecting rod rotatably connected to the inner cavity of the first rotating plate, the surface of the connecting rod rotatably connected to the inner cavity of the second rotating plate, and a rubber block movably bonded to one side of the second rotating plate.

[0007] Preferably, a hollow tube is fixedly connected to one side of the fixed plate, and a sliding rod is slidably connected to the inner cavity of the hollow tube. One end of the sliding rod is fixedly connected to one side of the moving block.

[0008] Preferably, the top of the mounting plate is provided with a hollow groove, and the bottom of the movable block is fixedly connected to a slider, the surface of which is slidably connected to the inner cavity of the hollow groove.

[0009] Preferably, the inner cavity of the hollow groove is fixedly connected to a second spring and a limiting rod, the surface of the second spring is sleeved on the surface of the limiting rod, one end of the second spring is fixedly connected to one side of the slider, and the surface of the limiting rod is slidably connected to the inner cavity of the slider.

[0010] Preferably, a reinforcing ring block is fixedly connected to one side of the movable block, and the inner cavity of the reinforcing ring block is fixedly connected to the surface of the slide rod.

[0011] Preferably, a first fixing rod is fixedly connected to the inner cavity of the movable block, and the surface of the first fixing rod is rotatably connected to the inner cavity of the first rotating plate. A second fixing rod is fixedly connected to the inner cavity of the fixed block, and the surface of the second fixing rod is rotatably connected to the inner cavity of the second rotating plate.

[0012] The advantages of this utility model are: This invention uses a rubber block to protect and buffer the vibration of the sewing machine spindle. When the vibration amplitude of the sewing machine spindle is large, it pushes the rubber block, causing it to move via the first rotating plate. During the movement of the moving block, a small damper, a first spring, and a second spring cushion the movement with their elasticity. The two impact-resistant mechanisms effectively wrap the surface of the sewing machine spindle, significantly reducing the impact and vibration amplitude during use, thus protecting the sewing machine spindle. When the shaft body is used for cushioning and to improve the impact resistance of the sewing machine spindle, it is effective enough. By wrapping the surface of the sewing machine spindle body, it can be effectively cushioned when moving up and down or left and right, thus increasing its impact resistance. This solves the problem that relying solely on the elasticity of the spring not only has poor impact resistance, but also that the spindle will vibrate slightly left and right during use, in addition to up and down vibration. This makes it difficult for the spring to provide comprehensive impact resistance and cushioning for the spindle, and it is still easy for the spindle to break or break due to up and down or left and right vibration. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a structural schematic diagram of the connecting rod and fixing plate of this utility model; Figure 3 This is a structural schematic diagram of the fixing block and mounting plate of this utility model; Figure 4 This is a schematic diagram of the structure of the rubber block and the movable block of this utility model; Figure 5 This utility model Figure 3 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the structure of the first fixing rod and the second fixing rod of this utility model.

[0015] In the diagram: 1. Sewing machine spindle body; 2. Mounting plate; 3. Impact-resistant mechanism; 301. Fixing plate; 302. Small damper; 303. First spring; 304. Moving block; 305. Auxiliary component; 3051. First rotating plate; 3052. Fixing block; 3053. Second rotating plate; 3054. Connecting rod; 3055. Rubber block; 4. Hollow tube; 5. Slide rod; 6. Reinforcing ring block; 7. Hollow groove; 8. Slider; 9. Second spring; 10. Limiting rod; 11. First fixing rod; 12. Second fixing rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses an impact-resistant sewing machine spindle. (Refer to...) Figure 1 and Figure 2 An impact-resistant sewing machine spindle includes a sewing machine spindle body 1, a mounting plate 2 fixedly connected to the surface of the sewing machine spindle body 1, and an impact-resistant mechanism 3 provided on the top of the mounting plate 2. Two impact-resistant mechanisms 3 are provided. The impact-resistant mechanism 3 includes a fixed plate 301, the bottom of which is fixedly connected to the top of the mounting plate 2. A small damper 302 and a first spring 303 are fixedly connected to one side of the fixed plate 301. The surface of the first spring 303 is sleeved on the surface of the small damper 302. A moving block 304 is fixedly connected to one end of the first spring 303 and the small damper 302. The bottom of the moving block 304 is slidably connected to the top of the mounting plate 2. An auxiliary component 305 is provided on the top of the sewing machine spindle body 1.

[0018] The two impact-resistant mechanisms 3 have the same structure and therefore the same principle, which will not be elaborated further here. The mounting plate 2 can be connected to the surface of the sewing machine spindle body 1, and the mounting plate 2 can install and fix the fixing plate 301. At the same time, the fixing plate 301 can connect the small damper 302 and the first spring 303. The sliding connection between the moving block 304 and the mounting plate 2 allows the small damper 302 and the first spring 303 to be pushed when the moving block 304 slides. The small damper 302 and the first spring 303 can buffer the movement of the moving block 304 through their own elasticity. The small damper 302 can not only limit the elastic resonance of the first spring 303, but also increase the buffering effect of the first spring 303. At the same time, the sliding of the moving block 304 and the elasticity of the small damper 302 and the first spring 303 can effectively resist the impact of the sewing machine spindle body 1 through the auxiliary component 305.

[0019] Reference Figure 2 and Figure 4 The auxiliary component 305 includes a first rotating plate 3051, the surface of which is rotatably connected to the inner cavity of the moving block 304. A fixing block 3052 is fixedly connected to the top of the mounting plate 2. A second rotating plate 3053 is rotatably connected to the inner cavity of the fixing block 3052. A connecting rod 3054 is rotatably connected to the inner cavity of the first rotating plate 3051. The surface of the connecting rod 3054 is rotatably connected to the inner cavity of the second rotating plate 3053. A rubber block 3055 is movably bonded to one side of the second rotating plate 3053. The moving block 304 can connect the first rotating plate 3051, and the mounting plate 2 can install and connect the second rotating plate 3053 through the fixing block 3052. At the same time, the connecting rod 3054 can effectively connect the first rotating plate 3051 and the second rotating plate 3053 together. The rubber block 3055 installed on one side of the second rotating plate 3053 can fit against the surface of the sewing machine spindle body 1.

[0020] Furthermore, when the sewing machine spindle body 1 vibrates, the rubber block 3055 pushes the second rotating plate 3053, which in turn pushes the first rotating plate 3051, causing the first rotating plate 3051 to move. This, in turn, moves the moving block 304. The small damper 302, the first spring 303, and the rubber block 3055 effectively buffer the sewing machine spindle body 1 and ensure its high efficiency. The impact-resistant mechanism 3 has two parts, so the two rubber blocks 3055 can effectively wrap the surface of the sewing machine spindle body 1. Since the first rotating plate 3051 and the second rotating plate 3053 are rotatably connected, and the first rotating plate 3051 is rotatably connected to the moving block 304, the vibration of the sewing machine spindle body 1 can be effectively transmitted to the rubber blocks 3055 when it vibrates up and down or left and right, thus effectively buffering the sewing machine spindle body 1.

[0021] Reference Figure 2 and Figure 4 A hollow tube 4 is fixedly connected to one side of the fixed plate 301. A slide rod 5 is slidably connected to the inner cavity of the hollow tube 4. One end of the slide rod 5 is fixedly connected to one side of the moving block 304. The hollow tube 4 can restrict the movement of the moving block 304 through the slide rod 5, further reducing the slight shaking and resonance of the moving block 304 when it is reset due to the elasticity of the small damper 302 and the first spring 303, and increasing the stability of the moving block 304 when it plays a buffering and moving role.

[0022] Reference Figure 5 The top of the mounting plate 2 is provided with a hollow groove 7, and the bottom of the moving block 304 is fixedly connected with a slider 8. The surface of the slider 8 is slidably connected to the inner cavity of the hollow groove 7. The setting of the hollow groove 7 and the slider 8 can further increase the movement and sliding function of the moving block 304, thereby further improving the stability and smoothness of the moving block 304 during sliding.

[0023] Reference Figure 5 The inner cavity of the hollow groove 7 is fixedly connected to a second spring 9 and a limiting rod 10. The surface of the second spring 9 is sleeved on the surface of the limiting rod 10. One end of the second spring 9 is fixedly connected to one side of the slider 8. The surface of the limiting rod 10 is slidably connected to the inner cavity of the slider 8. The setting of the limiting rod 10 can limit the slider 8, so that the slider 8 can limit the movement of the moving block 304 through its connection with the hollow groove 7. At the same time, the slider 8 itself has high stability. In addition, the limiting rod 10 can also play an auxiliary role for the small damper 302 and the first spring 303 through its own elasticity, so that the moving block 304 has a better buffering and impact resistance effect when it is pushed and moves.

[0024] Reference Figure 2 and Figure 5 A reinforcing ring 6 is fixedly connected to one side of the movable block 304. The inner cavity of the reinforcing ring 6 is fixedly connected to the surface of the slide rod 5. The reinforcing ring 6 can increase the stability of the connection between the slide rod 5 and the movable block 304, so that the slide rod 5 has high stability when in use and is not prone to unstable connection or shaking with the movable block 304 during use.

[0025] Reference Figure 4 and Figure 6 A first fixing rod 11 is fixedly connected to the inner cavity of the movable block 304. The surface of the first fixing rod 11 is rotatably connected to the inner cavity of the first rotating plate 3051. A second fixing rod 12 is fixedly connected to the inner cavity of the fixed block 3052. The surface of the second fixing rod 12 is rotatably connected to the inner cavity of the second rotating plate 3053. The second fixing rod 12 can restrict and strengthen the connection between the fixed block 3052 and the second rotating plate 3053, so that the second rotating plate 3053 can be sufficiently stable when rotating inside the fixed block 3052. At the same time, the first fixing rod 11 has a similar function, which can strengthen and limit the connection between the movable block 304 and the first rotating plate 3051. Thus, the second rotating plate 3053 rotates inside the fixed block 3052, and the first rotating plate 3051 rotates inside the movable block 304, both of which have high stability.

[0026] Working Principle: When using this device, the operator can connect the mounting plate 2 to the sewing machine spindle body 1. After connection, during use, the sewing machine spindle body 1 may experience vibrations due to normal operation. When this vibration occurs, the sewing machine spindle body 1 will collide with and push against the rubber block 3055. The rubber block 3055 can buffer and protect against the vibration of the sewing machine spindle body 1. When the vibration amplitude is large, the rubber block 3055 will push against the second rotating plate 3053. Since the second rotating plate 3053 is connected to the first rotating plate 3051 via the connecting rod 3054, when the second rotating plate 3053 is pushed by the rubber block 3055, it will be affected by the vibration of the first rotating plate 3051. Plate 3051 pushes the moving block 304. When the moving block 304 moves, it will squeeze the second spring 9, the small damper 302 and the first spring 303. The second spring 9, the small damper 302 and the first spring 303 can effectively buffer the vibration and movement of the moving block 304. The elasticity of the second spring 9, the small damper 302 and the first spring 303 drives the moving block 304 to reset. At the same time, the small damper 302 can also reduce the resonance of the second spring 9 and the first spring 303 during elastic reset. Thus, the moving block 304 can effectively buffer and resist the vibration of the sewing machine spindle body 1, so that the sewing machine spindle body 1 is not easily damaged by vibration during use.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An impact-resistant sewing machine spindle, comprising a sewing machine spindle body (1), characterized in that: The sewing machine spindle body (1) is fixedly connected to a mounting plate (2), and the top of the mounting plate (2) is provided with an anti-impact mechanism (3), and there are two anti-impact mechanisms (3); The impact-resistant mechanism (3) includes a fixed plate (301), the bottom of which is fixedly connected to the top of the mounting plate (2). A small damper (302) and a first spring (303) are fixedly connected to one side of the fixed plate (301). The surface of the first spring (303) is sleeved on the surface of the small damper (302). A moving block (304) is fixedly connected to one end of the first spring (303) and the small damper (302). The bottom of the moving block (304) is slidably connected to the top of the mounting plate (2). An auxiliary component (305) is provided on the top of the sewing machine spindle body (1). The auxiliary component (305) includes a first rotating plate (3051), the surface of which is rotatably connected to the inner cavity of the moving block (304). The top of the mounting plate (2) is fixedly connected to the first rotating plate (3051). A fixed block (3052) is fixedly connected to the first rotating plate (3051), and a second rotating plate (3053) is rotatably connected to the inner cavity of the fixed block (3052). A connecting rod (3054) is rotatably connected to the inner cavity of the first rotating plate (3051). The surface of the connecting rod (3054) is rotatably connected to the inner cavity of the second rotating plate (3053). A rubber block (3055) is movably bonded to one side of the second rotating plate (3053). A hollow tube (4) is fixedly connected to one side of the fixed plate (301). A sliding rod (5) is slidably connected to the inner cavity of the hollow tube (4). One end of the sliding rod (5) is fixedly connected to one side of the moving block (304). A hollow groove (7) is opened on the top of the mounting plate (2). A slider (8) is fixedly connected to the bottom of the moving block (304). The surface of the slider (8) is slidably connected to the inner cavity of the hollow groove (7).

2. The impact-resistant sewing machine spindle according to claim 1, characterized in that: The inner cavity of the hollow groove (7) is fixedly connected to a second spring (9) and a limiting rod (10). The surface of the second spring (9) is sleeved on the surface of the limiting rod (10). One end of the second spring (9) is fixedly connected to one side of the slider (8). The surface of the limiting rod (10) is slidably connected to the inner cavity of the slider (8).

3. The impact-resistant sewing machine spindle according to claim 2, characterized in that: A reinforcing ring block (6) is fixedly connected to one side of the movable block (304), and the inner cavity of the reinforcing ring block (6) is fixedly connected to the surface of the slide rod (5).

4. The impact-resistant sewing machine spindle according to claim 1, characterized in that: The inner cavity of the movable block (304) is fixedly connected to a first fixing rod (11), the surface of the first fixing rod (11) is rotatably connected to the inner cavity of the first rotating plate (3051), and the inner cavity of the fixed block (3052) is fixedly connected to a second fixing rod (12), the surface of the second fixing rod (12) is rotatably connected to the inner cavity of the second rotating plate (3053).

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