Y-axis transmission device of pattern sewing machine

Abstract

The utility model discloses a Y-axis transmission device of a pattern sewing machine. The Y-axis transmission device comprises a transmission motor and two groups of transmission units, each transmission unit comprises a transmission rack, a connecting block and a pressing assembly, the transmission racks are in linkage with the transmission motor, and the pressing assemblies are arranged above the transmission racks, abut against the upper ends of the transmission racks and are used for limiting the transmission racks; the connecting block is fixedly connected with one end of the transmission rack, and a connecting part used for being fixedly connected with other assemblies is arranged on the connecting block. According to the Y-axis transmission device of the pattern sewing machine, a rack type transmission mode is applied to the Y-axis transmission device of the pattern sewing machine for the first time, and compared with an existing traditional guide rail transmission mode, the Y-axis transmission device is simpler in structure, convenient to install and faster in response, and production cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of sewing equipment, and in particular to a Y-axis transmission device for a pattern sewing machine. Background Technology

[0002] Electronic pattern making machines are the most advanced machines used in modern handbag, shoe, luggage, garment, leather goods, and furniture factories. They enable the high-speed and high-efficiency realization of traditional hand-made patterns, and can also achieve the requirements of "multi-layered, multi-functional, uniform, and perfect" patterns that are impossible to achieve by hand. It is an electromechanical product that embodies a variety of advanced technologies.

[0003] To achieve the Y-axis movement of the sewing device (press frame) of the pattern sewing machine, a guide rail type Y-axis module is currently commonly used. However, this type of Y-axis module has problems such as delayed response, insufficient accuracy, and cumbersome installation, which cannot meet the current equipment's need for rapid response and needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a Y-axis transmission device for a pattern making machine. By using a transmission rack and pinion drive to replace the existing guide rail, it is easier to install, reacts more quickly, and effectively improves the operating efficiency and accuracy of the equipment.

[0005] To achieve the above objectives, this utility model provides a Y-axis transmission device for a pattern making machine, including a transmission motor and two sets of transmission units;

[0006] Each transmission unit includes: a transmission rack, a connecting block, and a clamping assembly. The transmission rack is linked to the transmission motor. The clamping assembly is disposed above the transmission rack and abuts against the upper end of the transmission rack to limit the transmission rack. The connecting block is fixedly connected to one end of the transmission rack, and a connecting part for fixing other components is provided on the connecting block.

[0007] Furthermore, the output end of the drive motor is connected to a drive shaft via a coupling. A first drive gear and a second drive gear are connected to the drive shaft. Each drive rack has a linkage tooth at its lower end. The two sets of drive racks mesh with the first and second drive gears respectively through their linkage teeth. By integrating the first and second drive gears on the same drive shaft, a physical rigid synchronization mechanism is achieved. The two sets of drive racks maintain strict phase synchronization when moving in the ±Y directions, eliminating the cumulative errors present in traditional separate drives. This design is particularly suitable for high-precision embroidery applications on pattern machines, ensuring absolute synchronization of the dual-track movement.

[0008] Furthermore, the clamping assembly includes a clamping frame and a clamping member rotatably mounted on the clamping frame. The clamping frame has a mounting portion, and the clamping member is mounted on the mounting portion via a movable shaft, achieving a rotatable connection. The clamping member tightly abuts against the upper end of the transmission rack. By clamping the transmission rack, the direction of its movement is restricted, preventing it from deviating in directions other than the Y-axis, ensuring that the transmission rack only performs reciprocating motion in the Y-axis direction.

[0009] Furthermore, the clamping component is a pulley, with wrapping edges formed on both sides of the clamping component. An abutment portion is formed between these wrapping edges, which tightly abuts against the upper end of the transmission rack. Setting the clamping component as a pulley ensures smoother rotation and prevents jamming. The wrapping edges effectively wrap around both sides of the transmission rack, providing better positioning and ensuring that the transmission rack only performs reciprocating motion in the Y-axis direction.

[0010] Furthermore, the upper end of the transmission rack is an arc-shaped surface, and an arc-shaped transition surface matching the shape of the arc-shaped surface is formed between the abutting portion and the wrapping edge. The arc-shaped transition surface allows the abutting portion to form a hemispherical structure, which fits more closely with the upper end surface of the transmission rack, reducing friction between them and improving the transmission efficiency of the transmission rack.

[0011] Furthermore, the upper end of the transmission rack is a flat surface, and the cross-section of the abutment portion is a flat structure that matches the shape of the flat surface. When the upper end of the transmission rack is a square flat surface, the abutment portion is also set as a matching flat surface to fit together, and the wrapping edges on both sides can better wrap the transmission rack to ensure that it does not detect any offset in other directions.

[0012] Furthermore, the upper end of the clamping frame is provided with a first connecting hole. The clamping frame can be fixed to the pattern machine housing through the first connecting hole.

[0013] Furthermore, protective portions are formed by the outward extension of both sides of the upper end of the clamping frame, and the clamping member is placed between these protective portions. The protective portions prevent damage to the clamping member.

[0014] Furthermore, the two ends of the linkage teeth of the transmission rack are provided with arc-shaped transition portions. The transition portions are provided to allow dynamic clearance between the first and second transmission gears and the linkage teeth, which can prevent wear on the first and second transmission gears by the transmission rack body when the transmission rack moves to the front and rear limit positions, thereby ensuring the transmission accuracy of the transmission rack.

[0015] Furthermore, the connecting block is provided with an annular wrapping portion for wrapping the end of the transmission rack. An opening is formed on one side of the annular wrapping portion, extending to form a locking portion, which has a locking hole. Locking is achieved by using the locking hole in conjunction with a screw, enabling the connecting block and the transmission rack to be locked and released, making installation and disassembly very convenient and quick.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This utility model uses a transmission motor in conjunction with a transmission rack to drive the connecting block to achieve reciprocating movement of the Y-axis. This gear and rack combination can effectively improve the transmission response time, realize fast transmission, reduce the delay of subsequent component displacement, and the rack structure also improves the transmission accuracy, which can adapt to the fast operation of the pattern machine.

[0018] 2. This utility model also includes a clamping component to restrict the movement direction of the transmission rack, which can restrict the movement direction of the transmission rack to prevent it from deviating in directions other than the Y direction, ensuring that the transmission rack only performs reciprocating motion in the Y-axis direction. Using this simple structure to guide the movement direction of the transmission rack can effectively reduce production costs and improve assembly efficiency.

[0019] 3. In summary, this utility model is the first to use a rack and pinion transmission method in the Y-axis transmission device of a pattern making machine. Compared with the existing traditional guide rail transmission, the structure of this utility model is simpler, effectively reducing production costs, facilitating installation, and providing a faster response. Attached Figure Description

[0020] To more clearly illustrate the technology 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a Y-axis transmission device for a pattern making machine according to this utility model;

[0022] Figure 2 This is a schematic diagram of the transmission rack of this utility model;

[0023] Figure 3 This is a structural schematic diagram of the clamping component of this utility model;

[0024] Figure 4 This is a structural schematic diagram of the clamping component according to another embodiment of the present invention;

[0025] Figure 5This is a schematic diagram of the connecting block of this utility model.

[0026] The diagram includes:

[0027] 1. Drive motor; 11. Drive shaft; 12. First drive gear; 13. Second drive gear; 2. Transmission unit; 3. Drive rack; 31. Linkage gear; 32. Fixing part; 33. Transition part; 4. Connecting block; 41. Annular wrapping part; 42. Locking part; 421. Locking hole; 43. Opening; 44. Connecting part; 441. Second connecting hole; 5. Pressing assembly; 51. Pressing frame; 511. Protective part; 512. First connecting hole; 52. Pressing element; 521. Wrapping edge; 522. Abutting part; 523. Arc-shaped transition surface; 53. Mounting part. Detailed Implementation

[0028] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0031] Please see Figures 1 to 5 An embodiment of this utility model provides a Y-axis transmission device for a pattern making machine, including a transmission motor 1 and two sets of transmission units 2;

[0032] like Figure 1 As shown, the output end of the drive motor 1 is connected to the drive shaft 11 through a coupling. The drive shaft 11 is connected to the first drive gear 12 and the second drive gear 13. The distance between the first drive gear 12 and the second drive gear 13 can be determined according to the size of the pressing frame of the pattern machine.

[0033] In this embodiment, each transmission unit 2 includes: a transmission rack 3, a connecting block 4, and a clamping component 5. The lower end of each transmission rack 3 is provided with a linkage tooth 31. The two transmission racks 3 mesh with the first transmission gear 12 and the second transmission gear 13 respectively through their respective linkage teeth 31, thereby realizing the linkage between the transmission rack 3 and the transmission motor 1. The first transmission gear 12 and the second transmission gear 13 are integrated through the same transmission shaft 11 to realize a physical rigid synchronization mechanism. The two sets of transmission racks 3 maintain strict phase synchronization when moving in the ±Y direction, eliminating the cumulative error existing in traditional split drive.

[0034] Please see Figure 2 The aforementioned linkage tooth 31 is located at the lower end of the transmission rack 3, and the length of the linkage tooth 31 can be set according to the required travel distance, which is not limited in specific terms. Preferably, a certain position is reserved between the two ends of the linkage tooth 31 and the two ends of the main body of the transmission rack 3, which can be set as a fixing part 32. The fixing part 32 is used to cooperate with the installation of the connecting block 4. In particular, in this embodiment, an arc transition part 33 is provided between the two ends of the linkage tooth 31 and the fixing part 32. The setting of the transition part 33 is to provide a dynamic gap between the first transmission gear 12 and the second transmission gear 13 and the linkage tooth 31, which can avoid the wear of the main body of the transmission rack 3 on the first transmission gear 12 and the second transmission gear 13 when the transmission rack 3 moves to the front and rear limit positions, thereby ensuring the transmission accuracy of the transmission rack 3.

[0035] like Figure 1 As shown, in this embodiment, the clamping assembly 5 is disposed above the transmission rack 3 and abuts against the upper end of the transmission rack 3 to limit the movement of the transmission rack 3. Specifically, the clamping assembly 5 includes a clamping frame 51 and a clamping member 52 rotatably disposed on the clamping frame 51. The clamping frame 51 is provided with a mounting part 53, and the clamping member 52 is disposed on the mounting part 53 via a movable shaft, achieving a rotatable connection. The clamping member 52 abuts tightly against the upper end of the transmission rack 3. In this embodiment, the clamping member 52 is a pulley. Figure 3 As shown, wrapping edges 521 are formed on both sides of the clamping member 52, and abutment portions 522 are formed between the wrapping edges 521. The abutment portions 522 are used to tightly abut against the upper end of the transmission rack 3, while the wrapping edges 521 wrap around both sides of the transmission rack 3. The clamping member 52 will be driven as the transmission rack 3 moves.

[0036] In this embodiment, the upper ends of the clamping frame 51 extend outwards on both sides to form protective portions 511, and the clamping member 52 is placed between these protective portions 511. The protective portions 511 are mainly used to protect the clamping member 52 and prevent damage to it. In practical applications, the protective portions 511 can be selected as needed. For example, in this embodiment, the clamping frame 51 in the outermost transmission unit 2 is provided with the protective portion 511, while the clamping frame 51 of the transmission unit 2 on the side adjacent to the transmission motor 1 is not provided. The reason is that in this embodiment, the outer transmission unit 2 is placed on the outside during installation, and the structure of this assembly position is relatively complex, so the protective portion 511 is provided. The inner transmission unit 2 is adjacent to the transmission motor 1 and has a simple structure, so the protective portion 511 is not provided.

[0037] In this embodiment, the transmission rack 3 is cylindrical, and therefore its upper end is an arc-shaped surface. Thus, as... Figure 3 As shown, in this embodiment, an arc-shaped transition surface 523 matching the shape of the arc surface is formed between the abutting part 522 and the wrapping edge 521. The arc-shaped transition surface enables the abutting part 522 to form a hemispherical structure, which fits more closely with the upper end surface of the transmission rack 3, reduces friction between them, and improves the transmission efficiency of the transmission rack 3.

[0038] In some other embodiments, the transmission rack 3 can be cylindrical in shape, in which case the upper end of the transmission rack 3 is a straight surface, such as... Figure 4 As shown, the cross-section of the abutment part 522 is a flat structure that matches the shape of the flat surface. There is no longer an arc transition surface between the abutment part 522 and the wrapping edges 521 on both sides, so that the cross-section of the clamping part 52 is H-shaped and can completely wrap the transmission rack 3 during assembly.

[0039] Of course, the distance between the two packages along 521 can be determined according to the width of the transmission rack 3. It is only necessary to ensure that the two can rotate smoothly and play a limiting role when they are assembled and matched.

[0040] To facilitate the installation of the clamping assembly 5, a first connecting hole 512 is provided at the upper end of the clamping frame 51 in this embodiment. The clamping frame 51 can be directly installed on the corresponding position on the base / casing of the pattern making machine through the first connecting hole 512 and screws / bolts and other parts, thereby fixing the clamping frame 51 so that it will not move, and providing a stable installation for the clamping component 52 to limit the transmission rack 3.

[0041] Connecting block 4 is fixedly connected to one end of transmission rack 3, specifically, as follows: Figure 5As shown, the connecting block 4 has an annular wrapping portion 41 for wrapping the end of the transmission rack 3. An opening 43 on one side of the annular wrapping portion 41 extends to form a locking portion 42, which has a locking hole 421. Locking is achieved by using the locking hole 421 in conjunction with a screw, allowing for both locking and unlocking of the connecting block 4 and the transmission rack 3, making installation and disassembly very convenient and quick. The connecting block 4 also has a connecting portion 44 for securing other components. This connecting portion 44 has multiple second connecting holes 441, through which screws / bolts or other parts can be used to directly connect the connecting portion 44 to the X-axis device.

[0042] Brief description of the working principle of this utility model: When the transmission motor 1 is started, the transmission motor 1 drives the first transmission gear 12 and the second transmission gear 13 of the transmission shaft 11 to rotate. The first transmission gear 12 and the second transmission gear transmit power to their respective meshing linkage gears 31, thereby driving the transmission rack 3 and the connecting block 4 to move in the Y direction. At the same time, the clamping member 52 set above the transmission rack 3 will press the transmission rack 3 and rotate with the transmission rack 3. In this way, the direction of movement of the transmission rack 3 is restricted to prevent it from deviating in any direction other than the Y direction, and it only performs reciprocating motion in the Y-axis direction.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A Y-axis transmission device for a pattern making machine, characterized in that, It includes a drive motor (1) and two sets of drive units (2); Each transmission unit (2) includes: a transmission rack (3), a connecting block (4) and a clamping assembly (5). The transmission rack (3) is linked with the transmission motor (1). The clamping assembly (5) is located above the transmission rack (3) and abuts against the upper end of the transmission rack (3) to limit the transmission rack (3). The connecting block (4) is fixedly connected to one end of the transmission rack (3). A connecting part (44) for fixing other components is provided on the connecting block (4).

2. The Y-axis transmission device for a pattern making machine according to claim 1, characterized in that, The output end of the drive motor (1) is connected to the drive shaft (11) through a coupling. The drive shaft (11) is connected to the first drive gear (12) and the second drive gear (13). The lower end of each drive rack (3) is provided with a linkage tooth (31). The two sets of drive racks (3) mesh with the first drive gear (12) and the second drive gear (13) respectively through their respective linkage teeth (31).

3. The Y-axis transmission device for a pattern making machine according to claim 1, characterized in that, The clamping assembly (5) includes a clamping frame (51) and a clamping member (52) rotatably mounted on the clamping frame (51). The clamping frame (51) is provided with a mounting part (53). The clamping member (52) is mounted on the mounting part (53) through a movable shaft to achieve a rotatable connection. The clamping member (52) is in close contact with the upper end of the transmission rack (3).

4. The Y-axis transmission device for a pattern making machine according to claim 3, characterized in that, The clamping member (52) is a pulley, and wrapping edges (521) are formed on both sides of the clamping member (52). Between the wrapping edges (521) is an abutment part (522), which abuts tightly with the upper end of the transmission rack (3).

5. The Y-axis transmission device for a pattern making machine according to claim 4, characterized in that, The upper end of the transmission rack (3) is an arc-shaped surface, and an arc-shaped transition surface (523) matching the shape of the arc-shaped surface is formed between the abutting part (522) and the wrapping edge (521).

6. The Y-axis transmission device for a pattern making machine according to claim 4, characterized in that, The upper end of the transmission rack (3) is a flat surface, and the cross section of the abutment part (522) is a flat structure that matches the shape of the flat surface.

7. The Y-axis transmission device for a pattern making machine according to claim 3, characterized in that, The upper end of the clamping frame (51) is provided with a first connecting hole (512).

8. The Y-axis transmission device for a pattern making machine according to claim 7, characterized in that, The upper end of the clamping frame (51) extends outward on both sides to form a protective part (511), and the clamping member (52) is placed between the protective parts (511).

9. The Y-axis transmission device for a pattern making machine according to claim 1, characterized in that, The transmission rack (3) has arc-shaped transition portions (33) at both ends of the linkage teeth (31).

10. A Y-axis transmission device for a pattern making machine according to claim 2, characterized in that, The connecting block (4) is provided with an annular wrapping part (41) for wrapping the end of the transmission rack (3). An opening (43) is provided on one side of the annular wrapping part (41) and extends to form a locking part (42). A locking hole (421) is provided on the locking part (42).

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