A lifting device of an embroidery machine

Abstract

The application relates to a lifting device of an embroidery machine, which comprises a base, a scissor arm assembly, an air spring, a control assembly and a table plate. The scissor arm assembly comprises two first connecting rods and two second connecting rods, the two first connecting rods and the two second connecting rods respectively form two cross arms, the two cross arms are rotationally connected at two adjacent ends, one end of the cross arm is a rotating end, the rotating end is rotationally connected to the base or the table plate, the other end of the cross arm is a moving end, the first moving end is slidingly connected to the base or the table plate, the two ends of the air spring are rotationally connected to the two cross arms, the rotating axes among the cross arms, the base, the table plate and the air spring are parallel to each other, and the control member is used for changing the extension length of the piston rod of the air spring. The application has the effect of conveniently adjusting the height of the table plate.

Description

Technical Field

[0001] This application relates to the field of embroidery machines, and more particularly to a lifting device for an embroidery machine. Background Technology

[0002] The embroidery table, as a crucial component of the embroidery machine, primarily serves to support the machine head, providing a stable working platform. Currently, existing embroidery machine tables are typically fixed to the frame. When the machine needs to switch to cap embroidery or garment embroidery modes, the operator must remove the table to provide sufficient installation space for the cap embroidery or garment embroidery devices. However, due to the table's large size and weight, installation and disassembly are difficult, causing inconvenience for operators and reducing production efficiency. Utility Model Content

[0003] To facilitate the adjustment of the table height, this application provides a lifting device for an embroidery machine.

[0004] The lifting device for an embroidery machine provided in this application adopts the following technical solution:

[0005] A lifting device for an embroidery machine includes a base, a scissor arm assembly, a gas spring, a control assembly, and a platform. The scissor arm assembly includes two first connecting rods and two second connecting rods. The two first connecting rods form a first cross arm and are rotatably connected at their intersection. The two second connecting rods form a second cross arm and are rotatably connected at their intersection. Adjacent ends of the first cross arm and adjacent ends of the second cross arm are rotatably connected. One free end of the first cross arm is a first rotating end, rotatably connected to the base. The other free end of the first cross arm is a first moving end, which moves towards or away from the base. The first rotating end is slidably connected to the base. One free end of the second cross arm is the second rotating end, which is rotatably connected to the platform. The other free end of the second cross arm is the second moving end, which is slidably connected to the platform along the direction close to or away from the second rotating end. One end of the gas spring is rotatably connected to the first cross arm, and the other end of the gas spring is rotatably connected to the second cross arm. The rotation axes of the first cross arm, the second cross arm, the base, the platform, and the gas spring are all parallel to each other. The control component is used to change the extension length of the gas spring piston rod.

[0006] By adopting the above technical solution, through the cooperation of the base, scissor arm assembly, gas spring, and control components, the scissor arm assembly is driven to expand or contract by changing the extension length of the gas spring piston rod, thereby raising or lowering the platform. This eliminates the need to disassemble the platform, improving operational convenience and greatly reducing the difficulty of operation for workers. Furthermore, the rotation axes of the first cross arm, second cross arm, base, platform, and gas spring are parallel to each other, ensuring that each component maintains synchronization and stability during movement. This avoids structural jamming or uneven force due to chaotic rotation axes, providing a smooth lifting and lowering trajectory for the platform and ensuring the reliability of the embroidery machine's work platform during adjustment.

[0007] Optionally, the base is provided with two scissor arm assemblies, which are distributed along the rotation axis of the gas spring. Several connecting rods are also provided between the two scissor arm assemblies. The length of the connecting rods is parallel to the distribution direction of the two scissor arm assemblies, and the two ends of the connecting rods are respectively located at the same position on the two scissor arm assemblies.

[0008] By adopting the above technical solution, the two scissor arm assemblies form a symmetrical support structure, effectively dispersing the load borne by the platform and avoiding the off-center load problem that may occur with a single scissor arm assembly. This keeps the platform horizontal during lifting and prevents the machine head from swaying due to structural instability. The connecting rod is parallel to the distribution direction of the scissor arm assemblies, connecting the two assemblies at the same position at both ends, rigidly connecting the double scissor arm assemblies into a whole, further enhancing the device's resistance to deformation. When the platform is subjected to lateral force or impact, the connecting rod can work together with the scissor arm assemblies to share the force, reducing the vibration amplitude of the structure and extending the service life of the device.

[0009] Optionally, the scissor arm assembly further includes a first roller and a second roller, wherein the first roller is rotatably connected to the sliding end of the first cross arm and is tactilely connected to the base, the second roller is rotatably connected to the sliding end of the second cross arm and is tactilely connected to the platform.

[0010] By adopting the above technical solution, the first roller is rotatably connected to the sliding end of the first cross arm and rollably connected to the base, while the second roller is rotatably connected to the sliding end of the second cross arm and rollably connected to the platform, thus converting traditional sliding friction into rolling friction. This improvement makes the sliding process of the scissor arm assembly smoother, significantly reduces the driving force required during operation, allows operators to easily control the lifting and lowering of the platform, and simultaneously reduces component wear and maintenance costs.

[0011] Optionally, the control component includes a rotating block, a spring, a pull rope, a sleeve, and a first locking block. The rotating block is rotatably connected to the piston rod of the gas spring. The rotating block is used to abut against the valve of the gas spring. The spring is used to keep the rotating block away from the valve of the gas spring. A limit groove is provided on the rotating block. The first locking block is provided on the limit groove. One end of the pull rope is provided on the first locking block. One point of the sleeve is provided on the gas spring. The pull rope is located inside the sleeve.

[0012] By adopting the above technical solution, the rotating block abuts against the gas spring valve, and the spring keeps the rotating block away from the valve. The pull rope is connected to the rotating block through the first locking block and passes through the sleeve. When the pull rope is pulled, the rotating block overcomes the spring force and rotates to press the valve, realizing the extension and retraction control of the gas spring piston rod; when the pull rope is released, the spring resets, causing the rotating block to move away from the valve and locking the gas spring state. This design transforms the control of the gas spring into a linear pulling operation of the pull rope. Operators can conveniently operate near the platform without directly contacting the gas spring valve, reducing the difficulty of operation and improving the convenience and safety of control. Furthermore, the limiting groove on the rotating block cooperates with the first locking block to limit the connection position of the pull rope, reducing the occurrence of the pull rope falling off or deviating under force, ensuring the stability and reliability of the control mechanism, and avoiding the problem of platform lifting and lowering out of control due to loose pull rope.

[0013] Optionally, the control assembly further includes a control base, a control lever, and a second locking block. The control base is disposed on the platform, the control lever is rotatably connected to the control rod, the other end of the sleeve is disposed on the control base, the second locking block is disposed on the other end of the pull rope, the pull rope passes through the control lever, and the control lever is used to change the distance from the second locking block to the sleeve.

[0014] By adopting the above technical solution, the control seat is set on the platform, the control lever is rotatably connected to the control seat, and the pull rope passes through the control lever and is fixed by the second locking block. The operator can indirectly pull the pull rope to control the gas spring by changing the distance between the second locking block and the sleeve by operating the control lever. This design moves the control position from near the gas spring to the surface of the platform, allowing the operator to adjust the platform height in a more comfortable operating area without having to bend over or approach the base, further improving the convenience of operation. When rotating the control lever, the pulling amplitude of the pull rope can be precisely controlled through the lever principle, thereby accurately adjusting the extension length of the gas spring piston rod, realizing fine adjustment of the platform height, meeting the precise requirements of different embroidery patterns for platform height, and improving the applicability of the device.

[0015] Optionally, the rotating block is provided with a first limiting block, the gas spring is provided with a second limiting block, and the two ends of the spring are respectively sleeved on the first limiting block and the second limiting block.

[0016] By adopting the above technical solution, the first limiting block on the rotating block and the second limiting block on the gas spring serve as the two ends of the spring, and the spring is sleeved on both of them; this structure provides a stable installation position for the spring, ensuring the reliability and stability of the gas spring control.

[0017] Optionally, threaded grooves are provided at both ends of the sleeve, and the two ends of the sleeve are respectively clamped to the gas spring and the control seat by two nuts.

[0018] By adopting the above technical solution, threaded grooves are opened at both ends of the sleeve, and the sleeve is clamped on the gas spring and control seat by nuts to ensure smooth cable routing and avoid interference between the cable and other components. At the same time, the tightening effect of the nuts fixes the sleeve, preventing it from loosening due to vibration and other factors, ensuring the stability of the cable control mechanism and the reliability of the platform lifting control.

[0019] Optionally, the platform includes a plate body, a mounting plate, a mounting bracket, and mounting bolts. The second cross arm is connected to the mounting bracket. The mounting plate is disposed on the plate body and has an oblong hole extending in the vertical direction. The tail of the mounting bolt passes through the oblong hole and is threaded onto the mounting bracket.

[0020] By adopting the above technical solution, when the equipment ground is not level, the position of the mounting bolts in the waist-shaped holes can be adjusted. During the installation process, the levelness of the platform can be precisely calibrated to ensure that the platform is in the best working condition and meet the high-precision operation requirements of the embroidery machine.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The combination of the scissor arm assembly and the gas spring allows the height of the platform to be adjusted by changing the extension length of the gas spring, eliminating the need to disassemble and adjust the platform, thus improving the ease of operation.

[0023] 2. The control components eliminate the need for direct manual contact with the gas spring valve, improving worker safety. Furthermore, the control lever is mounted on the platform, eliminating the need to bend over when adjusting the platform height, thus enhancing ease of operation.

[0024] 3. The oblong holes on the mounting plate, when fitted with the mounting bracket, allow for fine-tuning of the platform, enabling precise calibration for uneven equipment surfaces. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the lifting device of an embroidery machine.

[0026] Figure 2 yes Figure 1 A schematic diagram of the structure of the scissor arm assembly.

[0027] Figure 3 yes Figure 1 Exploded view of the middle platform.

[0028] Figure 4 yes Figure 1 A schematic diagram showing the positional relationship between the gas spring and the control components.

[0029] Figure 5 yes Figure 4 A cross-sectional view of the gas spring piston rod, used to show the connection between the control components and the gas spring.

[0030] Figure 6 yes Figure 4 A schematic diagram showing the connection between the control components and the mounting bracket.

[0031] Reference numerals: 1. Base; 2. Scissor arm assembly; 21. First cross arm; 22. Second cross arm; 23. First roller; 24. Second roller; 3. Gas spring; 31. Second limit block; 4. Control assembly; 41. Rotating block; 411. Limiting groove; 412. First limit block; 42. Spring; 43. Pull rope; 44. Sleeve; 45. First locking block; 46. Control seat; 47. Control rod; 48. Second locking block; 49. Nut; 5. Platform; 51. Plate; 52. Mounting plate; 521. Waist-shaped hole; 53. Mounting bracket; 54. Mounting bolt; 6. Connecting rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0033] This application discloses a lifting device for an embroidery machine. (Refer to...) Figure 1 and Figure 2A lifting device for an embroidery machine includes a base 1, two scissor arm assemblies 2, two gas springs 3, a control assembly 4, and a platform 5. The two scissor arm assemblies 2 are distributed along the width direction of the base 1, and eight connecting rods 6 are arranged between the two scissor arm assemblies 2. Each scissor arm assembly 2 includes two first connecting rods, two second connecting rods, a first roller 23, and a second roller 24. The two first connecting rods form a first cross arm 21, and the two second connecting rods form a second cross arm 22. Both the first cross arm 21 and the second cross arm 22 are "X" shaped. The rotation axis between the two first connecting rods is parallel to the width direction of the base 1, and the rotation axis between the two second connecting rods is also parallel to the width direction of the base 1. The second cross arm 22 is located above the first cross arm 21, and the two higher ends of the first cross arm 21 are rotatably connected to the second cross arm. At the two ends of the lower height of the first cross arm 21 and the second cross arm 22, the rotation axis between them is parallel to the width of the base 1. The lower end of the first cross arm 21 is the first rotating end, which is rotatably connected to the base 1 along the width direction of the base 1. The other end of the lower height of the first cross arm 21 is the first sliding end. The first roller 23 is rotatably connected to the first sliding end. The axis of the first roller 23 is parallel to the width direction of the base 1. The first roller 23 is slidably connected to the base 1 along the length direction of the base 1. The two ends of the eight connecting rods 6 are respectively set at the two ends of the lower height of the first cross arm 21, the two ends of the higher height of the second cross arm 22, the rotation axis of the first cross arm 21, the rotation axis of the second cross arm 22, and the connection end between the first clamping arm and the second cross arm 22.

[0034] Reference Figure 1 and Figure 3 The platform 5 includes a plate body 51, two mounting plates 52, a mounting bracket 53, and several mounting bolts 54. The mounting bracket 53 is horizontally arranged. The higher end of the second cross arm 22 is the second rotating end, which is rotatably connected to the mounting bracket 53 along the width direction of the base 1. The other higher end of the second cross arm 22 is the second sliding end. The second roller 24 is rotatably connected to the second sliding end. The axis of the second roller 24 is parallel to the width direction of the base 1, and the second roller 24 slides along the width direction of the base 1. The mounting plate 52 is fixedly mounted on the lower end face of the mounting plate 51 and is parallel to the length direction of the base 1. The mounting plate 52 has several oblong holes 521 distributed along the length direction of the mounting plate 52 and extending vertically. Several mounting bolts 54 correspond one-to-one with several oblong holes 521. The tail of the mounting bolt 54 passes through the oblong hole 521 and is threaded to the mounting plate 53.

[0035] Reference Figure 2 and Figure 4Two gas springs 3 correspond to two scissor arm assemblies 2. One end of the gas spring 3 is rotatably connected to the first cross arm 21, and the other end of the gas spring 3 is rotatably connected to the second cross arm 22. The length direction of the gas spring 3 is not parallel to the length direction of the first link and the length direction of the second link.

[0036] Reference Figure 5 and Figure 6 The control assembly 4 includes two rotating blocks 41, two springs 42, two pull ropes 43, two sleeves 44, two first locking blocks 45, a control base 46, a control rod 47, and two second locking blocks 48. The two rotating blocks 41 correspond to the two gas springs 3. The rotating blocks 41 are rotatably connected to the piston rods of the gas springs 3 along the width direction of the base 1. The two springs 42 correspond to the two rotating blocks 41. A first limiting block 412 is fixedly installed on the rotating block 41, and a second limiting block 31 is fixedly installed on the piston rod of the gas spring 3. The two ends of the spring 42 are respectively sleeved on the first limiting block 412 and the second limiting block 31. The spring 42 keeps the rotating block 41 away from the valve of the gas spring 3. The two first locking blocks 45 correspond to the first rotating blocks 41. A limiting groove 411 is formed on the rotating block 41, and the first locking blocks 45 are locked onto the limiting groove 411. Inside the slot 411, two pull ropes 43 correspond to two first locking blocks 45. One end of the pull rope 43 is fixedly mounted on the first locking block 45. The control seat 46 is fixedly mounted on the mounting plate 52. The control rod 47 is rotatably connected to the control seat 46 along the width direction of the base 1. One end of each of the two pull ropes 43 passes through both sides of the rotation axis of the control rod 47. Two second locking blocks 48 correspond to the two pull ropes 43 and are fixedly mounted on the pull ropes 43. The two second locking blocks 48 are located on both sides of the control rod 47. Two sleeves 44 correspond to the two pull ropes 43 and are sleeved on the pull ropes 43. Both ends of the sleeves 44 are provided with threaded grooves. Both ends of the sleeves 44 are threadedly connected to two nuts 49. The two ends of the sleeves 44 are connected to the piston rod of the gas spring 3 and the control seat 46 through the two nuts 49.

[0037] The implementation principle of the lifting device of an embroidery machine according to an embodiment of this application is as follows: When the operator needs to change the height of the platform 5, the operator can rotate the control lever 47. The control lever 47 pulls the pull rope 43 through the second locking block 48. The pull rope 43 moves relative to the sleeve 44. The pull rope 43 pulls the first locking block 45. The first locking block 45 drives the rotating block 41 to overcome the elastic force of the spring 42 and abut against the valve of the gas spring 3. When there is no load on the plate 51, the piston rod of the gas spring 3 extends, causing the first cross arm 21 and the second cross arm 22 to rotate, and the height of the platform 5 rises. When there is a load on the plate 51 and the load is greater than the internal pressure of the gas spring 3, the piston rod of the gas spring 3 contracts, causing the first cross arm 21 and the second cross arm 22 to rotate in opposite directions, and the height of the platform 5 falls. The height of the plate 51 is controlled by the control component 4.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lifting device for an embroidery machine, characterized in that: The system includes a base (1), a scissor arm assembly (2), a gas spring (3), a control assembly (4), and a platform (5). The scissor arm assembly (2) includes two first links and two second links. The two first links form a first cross arm (21) and are rotatably connected at their intersection. The two second links form a second cross arm (22) and are rotatably connected at their intersection. The two adjacent ends of the first cross arm (21) are rotatably connected to the two adjacent ends of the second cross arm (22). One free end of the first cross arm (21) is a first rotating end, which is rotatably connected to the base (1). The other free end of the first cross arm (21) is a first moving end, which moves along a path closer to or further away from the first rotating end. The second cross arm (22) is slidably connected to the base (1). One free end of the second cross arm (22) is the second rotating end, which is rotatably connected to the platform (5). The other free end of the second cross arm (22) is the second moving end, which is slidably connected to the platform along the direction close to or away from the second rotating end. One end of the gas spring (3) is rotatably connected to the first cross arm (21), and the other end of the gas spring (3) is rotatably connected to the second cross arm (22). The rotation axes of the first cross arm (21), the second cross arm (22), the base (1), the platform (5), and the gas spring (3) are all parallel to each other. The control component is used to change the extension length of the piston rod of the gas spring (3).

2. The lifting device for an embroidery machine according to claim 1, characterized in that: Two scissor arm assemblies (2) are provided on the base (1). The two scissor arm assemblies (2) are distributed along the rotation axis of the gas spring (3). Several connecting rods (6) are also provided between the two scissor arm assemblies (2). The length of the connecting rods (6) is parallel to the distribution direction of the two scissor arm assemblies (2). The two ends of the connecting rods (6) are respectively located at the same position on the two scissor arm assemblies (2).

3. The lifting device for an embroidery machine according to claim 2, characterized in that: The scissor arm assembly (2) further includes a first roller (23) and a second roller (24). The first roller (23) is rotatably connected to the sliding end of the first cross arm (21) and is tumbledly connected to the base (1). The second roller (24) is rotatably connected to the sliding end of the second cross arm (22) and is tumbledly connected to the platform (5).

4. The lifting device for an embroidery machine according to claim 1, characterized in that: The control component (4) includes a rotating block (41), a spring (42), a pull rope (43), a sleeve (44), and a first snap-fit ​​block (45). The rotating block (41) is rotatably connected to the piston rod of the gas spring (3). The rotating block (41) is used to abut against the valve of the gas spring (3). The spring (42) is used to keep the rotating block (41) away from the valve of the gas spring (3). A limit groove (411) is provided on the rotating block (41). The first snap-fit ​​block (45) is provided on the limit groove (411). One end of the pull rope (43) is provided on the first snap-fit ​​block (45). One point of the sleeve (44) is provided on the gas spring (3). The pull rope (43) is located inside the sleeve (44).

5. The lifting device for an embroidery machine according to claim 4, characterized in that: The control assembly (4) further includes a control base (46), a control lever (47), and a second locking block (48). The control base (46) is disposed on the platform (5). The control lever (47) is rotatably connected to the control lever (47). The other end of the sleeve (44) is disposed on the control base (46). The second locking block (48) is disposed on the other end of the pull rope (43). The pull rope (43) passes through the control lever (47). The control lever (47) is used to change the distance between the second locking block (48) and the sleeve (44).

6. The lifting device for an embroidery machine according to claim 4, characterized in that: The rotating block (41) is provided with a first limiting block (412), the gas spring (3) is provided with a second limiting block (31), and the two ends of the spring (42) are respectively sleeved on the first limiting block (412) and the second limiting block (31).

7. The lifting device for an embroidery machine according to claim 4, characterized in that: The sleeve (44) has threaded grooves at both ends, and the two ends of the sleeve (44) are respectively clamped to the gas spring (3) and the control seat (46) by two nuts (49).

8. The lifting device for an embroidery machine according to claim 1, characterized in that: The platform (5) includes a plate body (51), a mounting plate (52), a mounting bracket (53), and mounting bolts (54). The second cross arm (22) is connected to the mounting bracket (53). The mounting plate (52) is disposed on the plate body (51). The mounting plate (52) has a waist-shaped hole (521) extending in the vertical direction. The tail of the mounting bolt (54) passes through the waist-shaped hole (521) and is threaded onto the mounting bracket (53).

Images