Sliding block transmission assembly and plain embroidery machine

Abstract

The utility model discloses a plain embroidery machine's slide block transmission subassembly and plain embroidery machine, slide block transmission subassembly includes connecting frame, the connecting frame is equipped with the shaft sleeve and toggle piece, the shaft sleeve passes through the connecting frame, the toggle piece is sleeved outside the shaft sleeve, the shaft sleeve passes through the connecting frame, the toggle piece passes through the shaft sleeve, the connecting frame passes through the shaft sleeve, and the connecting frame passes through the connecting frame. A reset torsional spring is arranged between the top end of the shifting piece and the connecting frame, a limiting mechanism is further arranged in the connecting frame, the limiting mechanism can adjust or limit a gap between the shifting piece and the connecting frame in the axis direction of the shaft sleeve, and collision damage to the shifting piece and the connecting frame is avoided. The sliding block transmission assembly has the advantages that the limiting mechanism adjusts or limits the gap between the shifting piece and the connecting frame in the axis direction of the shaft sleeve, so that collision damage to the shifting piece and the connecting frame is avoided, the service life of the sliding block transmission assembly is prolonged, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of flat embroidery machines, in particular to a slider transmission component of the flat embroidery machines. Background Art

[0002] Computerized flat embroidery machines can be used for flat embroidery, caps, and garments. Different accessories can be selected according to customer needs, such as beads, towels, and rope embroidery. They are mostly used for pattern design and personalized embroidery. It can achieve high flexibility in embroidery, cap embroidery, garment embroidery, bead embroidery, and towel embroidery. It has powerful functions and rich patterns, making it one of the embroidery machines with the highest customer selection rate. According to the number of needles, flat embroidery machines are divided into single-head embroidery machines and multi-head embroidery machines.

[0003] The prior art CN216473889U discloses a presser foot control device for an embroidery machine, which includes a first transmission component, which includes a connecting frame, a shaft sleeve and a toggle member provided in the connecting frame, the shaft sleeve is inserted into the connecting frame, the toggle member is sleeved outside the shaft sleeve, and the toggle member is rotatably connected to the shaft sleeve, a first torsion spring is provided between the top end of the toggle member and the connecting frame, the first torsion spring is sleeved outside the shaft sleeve, and two ends of the first torsion spring are respectively connected to the toggle member and the connecting frame. At present, the disadvantage of the first transmission component is that due to the manufacturing error and assembly error of the parts, the bottom end of the toggle member cannot be completely fitted with the connecting frame, that is, there is a movable gap between the bottom end of the toggle member and the connecting frame. In addition, during the working process, the connecting frame is driven by the driving component to perform high-speed reciprocating motion along the axial direction of the sleeve, thereby driving the toggle member to perform high-speed reciprocating motion along the axial direction of the sleeve, and finally driving the needle of the embroidery machine to perform high-speed reciprocating motion through the transmission relationship, thereby forming embroidery on the fabric to be embroidered. Since there is a movable gap between the toggle member and the connecting frame, the toggle member and the connecting frame are constantly collided, causing damage to the toggle member and the connecting frame, resulting in a reduction in the service life of the first transmission component. Utility Model Content

[0004] In order to solve the above technical problems, one of the purposes of the utility model is to provide a slider transmission assembly of a flat embroidery machine, which includes a connecting frame, a toggle member, a sleeve, a reset torsion spring and a limiting mechanism. The slider transmission assembly of the flat embroidery machine has the advantage of avoiding collision damage between the toggle member and the connecting frame during operation, thereby extending the service life of the slider transmission assembly, that is, extending the service life of the equipment.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] A slider drive assembly of a flat embroidery machine, comprising a connecting frame. An axle sleeve and a toggling member are arranged inside the connecting frame. The axle sleeve is inserted through the connecting frame, and the toggling member is sleeved outside the axle sleeve. A reset torsion spring is arranged between the top end of the toggling member and the connecting frame. A limiting mechanism is also arranged inside the connecting frame. The limiting mechanism can adjust or limit the gap between the toggling member and the connecting frame along the axial direction of the axle sleeve, so as to avoid collision damage between the toggling member and the connecting frame.

[0007] During the working process of the slider drive assembly, the connecting frame is driven by a drive assembly on the flat embroidery machine to perform high-speed reciprocating motion along the axial direction of the axle sleeve, driving the toggling member to perform high-speed reciprocating motion. Through the transmission relationship of the flat embroidery machine, the needle of the flat embroidery machine is ultimately driven to move. Since the limiting mechanism is arranged inside the connecting frame in the present invention, the limiting mechanism can adjust or limit the gap between the toggling member and the connecting frame along the axial direction of the axle sleeve, avoiding the collision damage between the toggling member and the connecting frame during the high-speed reciprocating motion, thereby prolonging the service life of the slider drive assembly, that is, prolonging the service life of the equipment.

[0008] Preferably, the limiting mechanism comprises a limiting elastic member. The limiting elastic member is arranged between the bottom end of the toggling member and the connecting frame. By setting it like this, there is the limiting elastic member between the toggling member and the connecting frame. When performing high-speed reciprocating motion, when the bottom end of the toggling member moves relatively towards the direction close to the connecting frame, the limiting elastic member is compressed, generating an elastic force to resist the movement of the toggling member. When the limiting elastic member is compressed to a certain extent, the generated elastic force is large enough. Before the bottom end of the toggling member contacts the connecting frame, it restricts the bottom end of the toggling member from further moving towards the direction close to the connecting frame, that is, restricts the minimum gap between the bottom end of the toggling member moving along the axial direction of the axle sleeve towards the connecting frame and the connecting frame, making the minimum gap greater than zero, thereby avoiding the collision damage between the toggling member and the connecting frame and prolonging the service life of the slider drive assembly.

[0009] Preferably, the limiting elastic member comprises a first limiting spring. The first limiting spring is sleeved outside the axle sleeve, and both ends of the first limiting spring are in contact with the toggling member and the connecting frame respectively. By setting it like this, the spring material is mature. Selecting a spring with an appropriate elastic coefficient can achieve avoiding the collision damage between the toggling member and the connecting frame during the working process, and this structure is simple and convenient to assemble.

[0010] Preferably, a spring washer is provided at the bottom end of the toggle member. The spring washer is sleeved outside the bushing. One end of the first limiting spring abuts against the spring washer. With this arrangement, the elastic force generated by the first limiting spring can be evenly applied to the toggle member by using the spring washer. If the spring washer is not used, since the elastic force of the first limiting spring cannot be evenly applied to the toggle member, the toggle member is unevenly stressed.

[0011] Preferably, the limiting elastic member includes a plurality of second limiting springs. Along the rotation direction of the toggle member relative to the bushing, the plurality of second limiting springs are arranged at intervals. A spring washer is provided at the bottom end of the toggle member. The spring washer is sleeved outside the bushing. One end of the second limiting spring abuts against the spring washer. With this arrangement, a plurality of second limiting springs arranged at intervals are provided along the rotation direction of the toggle member relative to the bushing. By simply selecting the second limiting springs with appropriate spring coefficients, similarly, the collision and damage between the toggle member and the connection frame can be avoided.

[0012] Preferably, along the rotation direction of the toggle member relative to the bushing, the plurality of second limiting springs are arranged at equal angular intervals. With this arrangement, the elastic force of the second limiting springs can be evenly applied to the toggle member, which can better ensure the avoidance of collision and damage between the toggle member and the connection frame.

[0013] Preferably, the limiting mechanism includes an adjusting screw. The connection frame is provided with an adjusting screw hole. The adjusting screw is threadedly connected to the connection frame, and the adjusting screw abuts against the bottom end of the toggle member. With this arrangement, due to the manufacturing error and assembly error of the components, there is a gap between the bottom end of the toggle member and the connection frame. By adjusting the adjusting screw, the relative movement between the toggle member and the connection frame along the axis of the bushing can be restricted, that is, a fixed gap is formed between the bottom end of the toggle member and the connection frame along the axis of the bushing. Therefore, during the working process, the toggle member and the connection frame will not collide and be damaged.

[0014] Preferably, a protective washer is provided at the bottom end of the toggle member. The protective washer is sleeved outside the bushing. The adjusting screw abuts against the protective washer. With this arrangement, the protective washer is provided. On the one hand, the acting force of the adjusting screw can be evenly applied to the toggle member. On the other hand, it also plays a protective role for the toggle member to avoid wear between the adjusting screw and the toggle member.

[0015] Preferably, the limiting mechanism includes an adjusting screw, the connecting frame is provided with an adjusting screw hole, the adjusting screw is threadedly connected to the connecting frame, the top and bottom ends of the toggle member are provided with protective gaskets, the protective gasket is sleeved outside the shaft sleeve, and the adjusting screw is in conflict with the protective gasket located at the top of the toggle member. Through such an arrangement, the adjusting screw adjusts the toggle member and makes the toggle member and the connecting frame relatively fixed along the axial direction of the shaft sleeve. Therefore, during operation, the toggle member and the connecting frame will not be damaged by collision. In addition, the protective gasket also protects the toggle member.

[0016] Preferably, the toggle member includes a connecting tube, which is sleeved outside the shaft sleeve, and the outer wall of the connecting tube is provided with a stopper, a limit block and a driving clamp block. By such a configuration, when the machine is stopped, the limit block abuts against the block in the flat embroidery machine, thereby limiting the movement of the slider transmission assembly along the axis direction of the shaft sleeve. Before the preparation work, the driving assembly of the flat embroidery machine drives the toggle member to rotate through the stopper, the limit block is separated from the block, and the slider transmission assembly can move along the axis direction of the shaft sleeve, and the driving clamp block is connected to the needle bar of the flat embroidery machine. When the slider transmission assembly reciprocates at high speed along the axis direction of the shaft sleeve, the needle bar is driven to reciprocate, thereby driving the needle connected to the needle bar to move.

[0017] The second object of the utility model is to provide a flat embroidery machine, including the above-mentioned slider transmission assembly.

[0018] Compared with the prior art, the utility model has achieved beneficial technical effects:

[0019] By adopting the technical solution of the utility model, during the working process of the slider transmission assembly of the flat embroidery machine, the driving assembly on the flat embroidery machine drives the connecting frame to perform high-speed reciprocating motion along the axial direction of the sleeve, drives the toggle member to perform high-speed reciprocating motion, and finally drives the needle of the flat embroidery machine to move through the transmission relationship of the flat embroidery machine; because the utility model is provided with the limiting mechanism in the connecting frame, the limiting mechanism can adjust or limit the gap between the toggle member and the connecting frame along the axial direction of the sleeve, thereby avoiding collision damage between the toggle member and the connecting frame during the high-speed reciprocating motion, thereby extending the service life of the slider transmission assembly, that is, extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an axonometric schematic diagram of the slider transmission assembly of Example 1 of the utility model;

[0021] Figure 2It is a front view schematic diagram of the slider transmission assembly of Example 1 of the utility model;

[0022] Figure 3 It is an axonometric schematic diagram of the toggle member of the embodiment of the utility model;

[0023] Figure 4 It is a front view schematic diagram of the slider transmission assembly of Example 2 of the utility model;

[0024] Figure 5 It is a front view schematic diagram of the slider transmission assembly of Example 3 of the utility model;

[0025] Figure 6 It is a partial structural schematic diagram of a flat embroidery machine according to an embodiment of the utility model.

[0026] The technical features indicated by the reference numerals are as follows:

[0027] 100, slider transmission assembly; 110, connecting frame; 120, toggle member; 121, connecting tube; 122, stop rod; 123, limit block; 124, driving clamp; 130, bushing; 140, reset torsion spring; 151, first limit spring; 152, second limit spring; 153, adjusting screw; 161, spring gasket; 162, protective gasket; 200, housing; 300, cam drive assembly; 400, connecting rod assembly; 500, driving shaft. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments, but the scope of protection claimed in the utility model is not limited to the following specific embodiments.

[0029] refer to Figures 1-5The present embodiment discloses a slider transmission assembly 100 of a flat embroidery machine, including a connecting frame 110, the connecting frame 110 is roughly in the shape of a "[", a shaft sleeve 130 and a toggle member 120 are arranged in the connecting frame 110, the shaft sleeve 130 is inserted into the connecting frame 110, the toggle member 120 is sleeved outside the shaft sleeve 130, and the toggle member 120 and the shaft sleeve 130 are rotatably connected, a reset torsion spring 140 is arranged between the top of the toggle member 120 and the connecting frame 110, the reset torsion spring 140 is sleeved outside the shaft sleeve 130, and the two ends of the reset torsion spring 140 are The ends are fixedly connected to the connecting frame 110 and the toggle member 120 respectively. Before the preparation work, the toggle member 120 is driven to rotate relative to the sleeve 130 to release the restriction on the movement of the toggle member 120 along the axial direction of the sleeve 130, that is, the slider transmission assembly 100 can move along the axial direction of the sleeve 130. A limiting mechanism is also provided in the connecting frame 110, and the limiting mechanism can adjust or limit the gap between the toggle member 120 and the connecting frame 110 along the axial direction of the sleeve 130 to avoid collision damage between the toggle member 120 and the connecting frame 110.

[0030] During the operation of the slider transmission assembly 100, the connecting frame 110 is driven by the driving assembly on the flat embroidery machine to perform high-speed reciprocating motion along the axial direction of the shaft sleeve 130, driving the toggle member 120 to perform high-speed reciprocating motion, and finally driving the needle of the flat embroidery machine to move through the transmission relationship of the flat embroidery machine; since the utility model is provided with the limiting mechanism in the connecting frame 110, the limiting mechanism can adjust or limit the gap between the toggle member 120 and the connecting frame 110 along the axial direction of the shaft sleeve 130, thereby avoiding collision damage between the toggle member 120 and the connecting frame 110 during the high-speed reciprocating motion, thereby extending the service life of the slider transmission assembly 100, that is, extending the service life of the equipment.

[0031] refer to Figures 1-4, in one embodiment, the limiting mechanism includes a limiting elastic member disposed between the bottom end of the toggling member 120 and the connecting frame 110. When the toggling member 120 and the connecting frame 110 are in relative motion during high-speed reciprocating movement, when the bottom end of the toggling member 120 moves towards the connecting frame 110, the limiting elastic member is compressed, generating an elastic force to resist the movement of the toggling member 120. When the limiting elastic member is compressed to a certain extent, the generated elastic force is large enough to limit the further movement of the bottom end of the toggling member 120 towards the connecting frame 110 before the bottom end of the toggling member 120 contacts the connecting frame 110. That is, it limits the minimum clearance between the bottom end of the toggling member 120 and the connecting frame 110 when the bottom end of the toggling member 120 moves along the axis of the bushing 130 towards the connecting frame 110, making the minimum clearance greater than zero. Generally, the minimum clearance is maintained at a certain size, thereby avoiding the collision damage between the toggling member 120 and the connecting frame 110 and extending the service life of the slider transmission assembly 100.

[0032] Reference Figures 1-2 , in one embodiment, the limiting elastic member includes a first limiting spring 151 sleeved outside the bushing 130, and both ends of the first limiting spring 151 are in contact with the toggling member 120 and the connecting frame 110 respectively. Spring materials are mature, and by selecting a spring with an appropriate elastic coefficient, it is possible to avoid the collision damage between the toggling member 120 and the connecting frame 110 during the working process, and this structure is simple and convenient for assembly.

[0033] Reference Figures 1-2 , in one embodiment, a spring washer 161 is provided at the bottom end of the toggling member 120. The spring washer 161 is sleeved outside the bushing 130, and one end of the first limiting spring 151 is in contact with the spring washer 161. Using the spring washer 161 can evenly apply the elastic force generated by the first limiting spring 151 to the toggling member 120; if the spring washer 161 is not used, since the elastic force of the first limiting spring 151 cannot be evenly applied to the toggling member 120, the toggling member 120 is unevenly stressed.

[0034] Reference Figure 4In one embodiment, the limiting elastic member includes a plurality of second limiting springs 152. Along the rotation direction of the toggle member 120 relative to the shaft sleeve 130, the plurality of second limiting springs 152 are arranged at intervals, and a spring washer 161 is provided at the bottom end of the toggle member 120. The spring washer 161 is sleeved outside the shaft sleeve 130, and one end of the second limiting spring 152 is in contact with the spring washer 161. Along the rotation direction of the toggle member 120 relative to the shaft sleeve 130, a plurality of second limiting springs 152 are arranged at intervals. It is only necessary to select an appropriate spring washer. The second limit spring 152 with a spring coefficient can also prevent the toggle member 120 from colliding with the connecting frame 110 and being damaged; further, the hardness of the spring washer 161 is lower than that of the toggle member 120. Before the preparation work, the toggle member 120 rotates relative to the shaft sleeve 130. Although the rotation amplitude is small, the wear of the toggle member 120 and the spring washer 161 can be ignored. However, the hardness of the spring washer 161 is lower than that of the toggle member 120, which can protect the toggle member 120 and prevent further wear of the toggle member 120. The spring washer 161 is a universal part with low price and easy replacement.

[0035] refer to Figure 4 In one embodiment, along the rotation direction of the toggle member 120 relative to the shaft sleeve 130, a plurality of second limit springs 152 are arranged at equal angles, so that the elastic force of the second limit springs 152 can act evenly on the toggle member 120, and can better prevent the toggle member 120 from being damaged by collision with the connecting frame 110. In this embodiment, four second limit springs 152 are provided.

[0036] refer to Figure 5 In one embodiment, the limiting mechanism includes an adjusting screw 153, the connecting frame 110 is provided with an adjusting screw hole, the adjusting screw 153 is threadedly connected to the connecting frame 110, and the adjusting screw 153 conflicts with the bottom end of the toggle member 120. Due to manufacturing errors and assembly errors of parts, there is a gap between the bottom end of the toggle member 120 and the connecting frame 110. By adjusting the adjusting screw 153, the toggle member 120 and the connecting frame 110 can be limited to move relative to each other along the axial direction of the sleeve 130, that is, a fixed gap is limited between the bottom end of the toggle member 120 and the connecting frame 110 along the axial direction of the sleeve 130. Since there is a gap between the bottom end of the toggle member 120 and the connecting frame 110 after adjustment, and the toggle member 120 and the connecting frame 110 are relatively fixed along the axial direction of the sleeve 130, during operation, the toggle member 120 and the connecting frame 110 will not be damaged by collision.

[0037] refer toFigure 5 In one embodiment, the adjusting screws 153 are arranged at equal angles along the rotation direction of the toggle member 120 relative to the sleeve 130 to ensure uniform force on the toggle member 120. In this embodiment, four adjusting screws 153 are provided.

[0038] refer to Figure 5 In one embodiment, a protective gasket 162 is provided at the bottom end of the toggle member 120, and the protective gasket 162 is sleeved outside the shaft sleeve 130. The adjusting screw 153 is in conflict with the protective gasket 162. The protective gasket 162 can, on the one hand, make the force of the adjusting screw 153 act evenly on the toggle member 120; on the other hand, it also protects the toggle member 120 to avoid wear between the adjusting screw 153 and the toggle member 120; further, the hardness of the protective gasket 162 is lower than that of the toggle member 120, thereby reducing the wear of the toggle member 120.

[0039] Not shown in the figure, in one embodiment, the limiting mechanism includes an adjusting screw 153, the connecting frame 110 is provided with an adjusting screw, the adjusting screw 153 is threadedly connected to the connecting frame 110, the top and bottom ends of the toggle member 120 are provided with protective gaskets 162, the protective gasket 162 is sleeved outside the shaft sleeve 130, the adjusting screw 153 is in conflict with the protective gasket 162 located at the top of the toggle member 120, the adjusting screw 153 adjusts the toggle member 120, and makes the toggle member 120 and the connecting frame 110 relatively fixed along the axial direction of the shaft sleeve 130, therefore, during operation, the toggle member 120 and the connecting frame 110 will not be damaged by collision, and in addition, the protective gasket 162 also protects the toggle member 120.

[0040] The function of the limiting mechanism of the utility model is to adjust the gap between the toggle member 120 and the connecting frame 110 along the axial direction of the sleeve 130. During operation, a fixed gap is formed between the toggle member 120 and the connecting frame 110 along the axial direction of the sleeve 130, that is, the toggle member 120 and the connecting frame 110 are relatively fixed along the axial direction of the sleeve 130, or the minimum gap when the bottom end of the toggle member 120 moves toward the connecting frame 110 is greater than zero, thereby adjusting or limiting the gap between the toggle member 120 and the connecting frame 110 along the axial direction of the sleeve 130 to avoid collision damage between the toggle member 120 and the connecting frame 110.

[0041] refer to Figure 3In one embodiment, the toggle member 120 includes a connecting tube 121, which is sleeved outside the sleeve 130. The outer wall of the connecting tube 121 is provided with a stop rod 122, a limit block 123 and a driving clamp 124. When the machine is stopped, the limit block 123 conflicts with a block (not shown in the figure) in the flat embroidery machine, thereby limiting the movement of the slider transmission assembly 100 along the axial direction of the sleeve 130. Before preparation, the driving assembly (not shown in the figure) of the flat embroidery machine drives the toggle member 120 to rotate through the stop rod 122, the limit block 123 disengages from the stop block, the slider transmission assembly 100 can move along the axial direction of the sleeve 130, and the driving clamp 124 is connected to the needle bar (not shown in the figure) of the flat embroidery machine. When the slider transmission assembly 100 performs high-speed reciprocating motion along the axial direction of the sleeve 130, the needle bar is driven to reciprocate, thereby driving the needle head (not shown in the figure) connected to the needle bar to move.

[0042] refer to Figure 6 The utility model also discloses a flat embroidery machine, including a housing 200, a driving assembly, a cam driving assembly 300, a connecting rod assembly 400, a driving shaft 500, an iron rod frame, an iron rod, a needle and the above-mentioned slider transmission assembly 100, wherein the housing 200 is provided with the driving assembly outside, the housing 200 is provided with the cam driving assembly 300, the connecting rod assembly 400 and the driving shaft 500, the output end of the driving assembly is connected to the cam assembly, the connecting rod assembly 400 is respectively connected to the cam driving assembly 300 and the driving shaft 500 The slider transmission assembly 100 is connected, the slider transmission assembly 100 is sleeved outside the driving shaft 500, the slider transmission assembly 100 can reciprocate along the axial direction of the driving shaft 500 relative to the driving shaft 500, the iron rod frame is arranged outside the housing 200 and is slidably connected to the housing 200, the iron rod is arranged in the iron rod frame, the slider transmission assembly 100 is connected to the iron rod, the slider transmission assembly 100 can drive the iron rod to reciprocate, and the needle is arranged at the bottom of the iron rod. The transmission relationship and working principle of the flat embroidery machine are specifically referred to the contents disclosed in the specification of the Chinese utility model patent CN216473889U, which will not be repeated here.

[0043] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A slider transmission assembly of a flat embroidery machine, characterized in that: The invention comprises a connecting frame (110), wherein a shaft sleeve (130) and a toggle member (120) are arranged inside the connecting frame (110), wherein the shaft sleeve (130) is inserted into the connecting frame (110), and the toggle member (120) is sleeved outside the shaft sleeve (130), and a return torsion spring (140) is arranged between the top end of the toggle member (120) and the connecting frame (110), and a limiting mechanism is also arranged inside the connecting frame (110), wherein the limiting mechanism can adjust or limit the gap between the toggle member (120) and the connecting frame (110) along the axis direction of the shaft sleeve (130), so as to avoid collision damage between the toggle member (120) and the connecting frame (110).

2. The slider transmission assembly according to claim 1, characterized in that: The limiting mechanism comprises a limiting elastic member, and the limiting elastic member is arranged between the bottom end of the toggle member (120) and the connecting frame (110).

3. The slider transmission assembly according to claim 2, characterized in that: The limiting elastic member comprises a first limiting spring (151), the first limiting spring (151) is sleeved outside the shaft sleeve (130), and two ends of the first limiting spring (151) respectively contact the toggle member (120) and the connecting frame (110).

4. The slider transmission assembly (100) according to claim 3, characterized in that: A spring washer (161) is provided at the bottom end of the toggle member (120), and the spring washer (161) is sleeved outside the shaft sleeve (130), and one end of the first limit spring (151) is in contact with the spring washer (161).

5. The slider transmission assembly according to claim 2, characterized in that: The limiting elastic member comprises a plurality of second limiting springs (152), and the plurality of second limiting springs (152) are arranged at intervals along the rotation direction of the toggle member (120) relative to the shaft sleeve (130), and a spring washer (161) is provided at the bottom end of the toggle member (120), and the spring washer (161) is sleeved outside the shaft sleeve (130), and one end of the second limiting spring (152) is in contact with the spring washer (161).

6. The slider transmission assembly according to claim 5, characterized in that: Along the rotation direction of the shifting member (120) relative to the shaft sleeve (130), a plurality of the second limit springs (152) are arranged at equal angle intervals.

7. The slider transmission assembly according to claim 1, characterized in that: The limiting mechanism comprises an adjusting screw (153), the connecting frame (110) is provided with an adjusting screw hole, the adjusting screw (153) is threadedly connected to the connecting frame (110), and the adjusting screw (153) abuts against the bottom end of the shifting member (120).

8. The slider transmission assembly according to claim 7, characterized in that: A protective gasket (162) is provided at the bottom end of the shifting member (120), and the protective gasket (162) is sleeved outside the shaft sleeve (130), and the adjusting screw (153) is in contact with the protective gasket (162).

9. The slider transmission assembly according to claim 1, characterized in that: The limiting mechanism comprises an adjusting screw (153), the connecting frame (110) is provided with an adjusting screw hole, the adjusting screw (153) is threadedly connected to the connecting frame (110), the top and bottom ends of the toggle member (120) are provided with protective gaskets (162), the protective gaskets (162) are sleeved outside the shaft sleeve, and the adjusting screw (153) is in conflict with the protective gasket (162) located at the top end of the toggle member (120).

10. A flat embroidery machine, characterized in that: A slider transmission assembly (100) comprising any one of claims 1-9.

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