Embroidery machine capable of automatically detaching needles

Abstract

The utility model relates to the field of embroidery machines, and discloses an embroidery machine capable of automatically detaching needles, which is characterized in that a needle detaching component comprises a transverse frame arranged on the front side of a fixed frame in a sliding manner, a vertical frame arranged on the transverse frame in a sliding manner, a rack arranged on the vertical frame in a sliding manner, a driving gear and a plurality of driven gears which are rotationally arranged on the vertical frame, and a driving component, the driving gear and the driven gear are both connected with the rack in a meshed mode, the screw is an inner hexagon screw, and a hexagonal column matched with the screw is fixedly arranged on the rear side of the driven gear. The automatic needle dismounting device has an automatic needle dismounting function, can be used for carrying out batch needle dismounting and needle replacement on the embroidery machine, greatly shortens the needle replacement time, and solves the problems that for part of the embroidery machine with more needles and more heads, the needle dismounting and mounting process spends a lot of time, the part of needle replacement time occupies the working time of the embroidery machine, and the working efficiency of the embroidery machine is influenced. And the working time of the embroidery machine is shortened, so that the production efficiency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of embroidery machine technology, specifically to an embroidery machine with automatic needle removal. Background Technology

[0002] An embroidery machine is a machine that automatically completes embroidery. Computerized embroidery machines, in particular, are modern embroidery devices that integrate mechanical, electronic, and computer technologies. They can greatly improve production efficiency and pattern consistency while preserving the beauty of traditional embroidery, and have become a key production tool in industries such as textiles, apparel, and home decoration.

[0003] When an embroidery machine is working, the needle bar carries the needle in a high-speed reciprocating piercing motion hundreds to thousands of times per minute. During continuous high-frequency piercing operations, the needle tip is prone to mechanical or thermal wear, which leads to a decrease in the quality of the embroidery. Therefore, embroidery machines typically require needle replacement every 8-12 hours of continuous operation.

[0004] Currently, embroidery needles on embroidery machines are still changed manually. For some embroidery machines with a large number of needles and heads, such as 15-head 9-needle embroidery machines or 20-head 12-needle embroidery machines, the needle replacement process takes a lot of time. This needle replacement time encroaches on the machine's operating time, reducing its working hours and leading to decreased production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an embroidery machine with automatic needle removal to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic needle removal embroidery machine, comprising a fixed frame, several needle bars, several embroidery needles, and screws mounted on the fixed frame. The bottom wall of each needle bar has an insertion hole, and the front side wall of each needle bar has a screw hole C communicating with the insertion hole. After the embroidery needle is inserted into the insertion hole, the screw is screwed into the screw hole C to fix and connect with the needle bar and the embroidery needle. The fixed frame is provided with a needle removal assembly, which includes a horizontal frame slidably mounted on the front side of the fixed frame, a vertical frame slidably mounted on the horizontal frame, a rack slidably mounted on the vertical frame, a driving gear and several driven gears rotatably mounted on the vertical frame, and a drive assembly. The driving gear and driven gears are both meshed with the rack. The screws are internal hexagonal screws, and a hexagonal post matching the screw is fixedly mounted on the rear side of the driven gear.

[0007] Preferably, side strips are fixedly provided on both the left and right sides of the fixing frame, and a T-shaped groove is provided on the front side wall of the side strip. A T-shaped block matching the T-shaped groove is fixedly provided on the rear side of the cross frame, and the T-shaped block is located in the T-shaped groove and slidably connected to the side strip.

[0008] Preferably, the drive assembly includes a right frame fixedly mounted on the right side of the side bar, a screw A rotatably mounted on the right frame, and a motor A fixedly mounted above the right frame. The output shaft of the motor A is fixedly connected to the screw A. A right block is fixedly mounted on the right side of the crossbar. The right block has a threaded hole A extending vertically through it. The screw A is located inside the threaded hole A and threadedly connected to the right block.

[0009] Preferably, the drive assembly further includes a screw B rotatably mounted on the crossbeam and a motor B fixedly mounted on the front side of the crossbeam. The output shaft of the motor B is fixedly connected to the screw B. The vertical frame has a threaded hole B extending through it from front to back. The screw B is located inside the threaded hole B and threadedly connected to the vertical frame.

[0010] Preferably, the drive assembly further includes a motor C fixedly mounted on the front side of the vertical frame, and the output shaft of the motor C is fixedly connected to the drive gear.

[0011] Preferably, a long strip is fixedly installed on the vertical frame, and a groove is opened on the bottom wall of the rack, and the long strip is inserted into the groove and makes contact with the rack.

[0012] Preferably, the needle removal assembly further includes a needle box, the top wall of which has a needle placement groove and several needle placement holes.

[0013] The beneficial effects of this utility model are as follows: When it is necessary to replace the embroidery needle, turn off the embroidery machine, put the new embroidery needle into the needle holder hole, place the needle box under the fixing frame so that the needle holder slot is directly below the old embroidery needle; start motor B drives the vertical frame to move forward, so that the hexagonal post is in front of the screw; start motor A drives the horizontal frame to move downward, so that the hexagonal post is aligned with the screw head; start motor B drives the vertical frame to move backward, so that the hexagonal post is inserted into the screw head; start motor C drives the drive gear to rotate counterclockwise, the drive gear drives the rack to move to the right, the rack drives the driven gear and the hexagonal post to rotate counterclockwise, tightening the screw. When the screw is loosened, the old embroidery needle loses its grip and falls into the needle holder under gravity, thus automatically removing the needle and facilitating its collection. A new embroidery needle is then inserted into the insertion hole. Motor C drives the drive gear clockwise, which in turn moves the rack to the left. The rack then drives the driven gear and hexagonal column clockwise, retightening the screw and securing the new needle. Motor B then moves the vertical frame forward, separating the hexagonal column from the screw. Motor A then moves the horizontal frame upward, positioning the vertical frame above the needle. The needle box is then removed for the next workstation to change needles. In summary, this invention features automatic needle removal, enabling batch needle removal and replacement on embroidery machines. This significantly reduces needle replacement time and solves the problem for embroidery machines with a large number of needles and heads, where the needle removal and installation process is time-consuming, encroaching on the machine's operating time and reducing production efficiency. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Appendix Figure 2 This is a schematic diagram of the structure of the present invention in the disassembled state;

[0016] Appendix Figure 3 This is a schematic diagram of the right side structure of this utility model;

[0017] Appendix Figure 4 This is a schematic diagram of the bottom structure of this utility model.

[0018] In the diagram: 1. Fixing frame; 2. Needle bar; 3. Embroidery needle; 4. Screw; 5. Insertion hole; 6. Screw hole C; 7. Horizontal frame; 8. Vertical frame; 9. Rack; 10. Hexagonal column; 11. Side strip; 12. T-slot; 13. T-block; 14. Right frame; 15. Screw A; 16. Motor A; 17. Right block; 18. Screw hole A; 19. Screw B; 20. Motor B; 21. Screw hole B; 22. Motor C; 23. Long strip; 24. Slide groove; 25. Needle box; 26. Needle slot; 27. Needle hole; 28. Driving gear; 29. ​​Driven gear. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] like Figures 1-4As shown, this utility model discloses an automatic needle removal embroidery machine, including a fixed frame 1, several needle bars 2, several embroidery needles 3 and screws 4 installed on the fixed frame 1. The bottom wall of the needle bar 2 is provided with an insertion hole 5, and the front side wall of the needle bar 2 is provided with a screw hole C6 communicating with the insertion hole 5. After the embroidery needle 3 is inserted into the insertion hole 5, the screw 4 is screwed into the screw hole C6 and fixedly connected to the needle bar 2 and the embroidery needle 3. The fixed frame 1 is provided with a needle removal assembly. The needle removal assembly includes a horizontal frame 7 slidably arranged on the front side of the fixed frame 1, a vertical frame 8 slidably arranged on the horizontal frame 7, a rack 9 slidably arranged on the vertical frame 8, a driving gear 28 and several driven gears 29 rotatably arranged on the vertical frame 8, and a drive assembly. The driving gear 28 and the driven gears 29 are both meshed with the rack 9. The screw 4 is an internal hexagon screw 4. A hexagonal column 10 matching the screw 4 is fixedly arranged on the rear side of the driven gear 29. During installation of the drive assembly, motors A16, B20, and C22 are connected to an external power supply and control switch. Motors A16, B20, and C22 can all rotate in both directions. The driving gear 28 and driven gear 29 are both meshed with rack 9. The driving gear 28 can drive all driven gears 29 to rotate through rack 9. Screw 4 is an internal hexagonal screw. A hexagonal post 10 matching screw 4 is fixedly installed on the rear side of driven gear 29. After the hexagonal post 10 is inserted into the screw head of screw 4, the hexagonal post 10 can be rotated by rotating driven gear 29, which can directly turn screw 4.

[0021] Preferably, side strips 11 are fixedly installed on both the left and right sides of the fixing frame 1. A T-shaped groove 12 is formed on the front side wall of each side strip 11. A T-shaped block 13 matching the T-shaped groove 12 is fixedly installed on the rear side of the cross frame 7. The T-shaped block 13 is located within the T-shaped groove 12 and slidably connected to the side strip 11. Because the T-shaped block 13 is located within the T-shaped groove 12 and slidably connected to the side strip 11, it facilitates the sliding of the cross frame 7 and prevents the cross frame 7 from falling off.

[0022] Preferably, the drive assembly includes a right frame 14 fixedly mounted on the right side of the side bar 11, a screw A15 rotatably mounted on the right frame 14, and a motor A16 fixedly mounted above the right frame 14. The output shaft of the motor A16 is fixedly connected to the screw A15. A right block 17 is fixedly mounted on the right side of the cross frame 7. The right block 17 has a threaded hole A18 extending vertically through it. The screw A15 is located inside the threaded hole A18 and threadedly connected to the right block 17. Because the output shaft of the motor A16 is fixedly connected to the screw A15, and the screw A15 is located inside the threaded hole A18 and threadedly connected to the right block 17, it facilitates the vertical movement of the cross frame 7.

[0023] Preferably, the drive assembly further includes a screw B19 rotatably mounted on the crossbeam 7 and a motor B20 fixedly mounted on the front side of the crossbeam 7. The output shaft of the motor B20 is fixedly connected to the screw B19. The vertical frame 8 has a threaded hole B21 extending through it, and the screw B19 is located inside the threaded hole B21 and threadedly connected to the vertical frame 8. Because the output shaft of the motor B20 is fixedly connected to the screw B19, and the screw B19 is located inside the threaded hole B21 and threadedly connected to the vertical frame 8, it facilitates the forward and backward movement of the vertical frame 8.

[0024] Preferably, the drive assembly further includes a motor C22 fixedly mounted on the front side of the vertical frame 8, the output shaft of the motor C22 being fixedly connected to the drive gear 28. Since the output shaft of the motor C22 is fixedly connected to the drive gear 28, it facilitates driving the drive gear 28 to rotate counterclockwise or clockwise.

[0025] Preferably, a long strip 23 is fixedly mounted on the vertical frame 8, and a groove 24 is formed on the bottom wall of the rack 9. The long strip 23 is inserted into the groove 24 and contacts the rack 9. Since the long strip 23 is inserted into the groove 24 and contacts the rack 9, it guides the rack 9 when it slides, preventing the rack 9 from tilting.

[0026] Preferably, the needle removal assembly further includes a needle box 25, the top wall of which has a needle slot 26 and several needle holes 27. The needle slot 26 on the top wall of the needle box 25 facilitates the collection of old embroidery needles 3; the several needle holes 27 on the top wall of the needle box 25 allow new embroidery needles 3 to be placed vertically, making it convenient to insert new embroidery needles 3 into the insertion hole 5.

[0027] Working principle: When it is necessary to replace the embroidery needle 3, turn off the embroidery machine, put the new embroidery needle 3 into the needle holder 27, place the needle box 25 below the fixing frame 1, so that the needle holder 26 is directly below the old embroidery needle 3; start motor B20 to drive the vertical frame 8 forward, so that the hexagonal post 10 is in front of the screw 4; start motor A16 to drive the horizontal frame 7 downward, so that the hexagonal post 10 is aligned with the screw head of the screw 4; start motor B20 to drive the vertical frame 8 backward, so that the hexagonal post 10 is inserted into the screw head of the screw 4; start motor C22 to drive the drive gear 28 to rotate counterclockwise, the drive gear 28 drives the rack 9 to move to the right, the rack 9 drives the driven gear 29 and the hexagonal post 10 to rotate counterclockwise, loosening the screw 4. After the screw 4 is loosened, the old embroidery needle 3 loses its tightness. Under the action of gravity, the old embroidery needle 3 will fall into the needle slot 26, which plays the role of automatic needle removal and facilitates the collection of the old embroidery needle 3. Align the new embroidery needle 3 with the insertion hole 5 and insert it. Start the motor C22 to drive the drive gear 28 to rotate clockwise. The drive gear 28 drives the rack 9 to move to the left. The rack 9 drives the driven gear 29 and the hexagonal column 10 to rotate clockwise, so that the screw 4 is tightened again to fix the new embroidery needle 3. Start the motor B20 to drive the vertical frame 8 to move forward, so that the hexagonal column 10 is separated from the screw 4. Start the motor A16 to drive the horizontal frame 7 to move upward, so that the vertical frame 8 is above the embroidery needle 3. Then remove the needle box 25 and change the needle at the next station.

[0028] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

Claims

1. An automatic needle removal embroidery machine, comprising a fixed frame (1), a plurality of needle bars (2), a plurality of embroidery needles (3), and screws (4) mounted on the fixed frame (1), wherein the bottom wall of the needle bar (2) is provided with an insertion hole (5), and the front side wall of the needle bar (2) is provided with a screw hole C (6) communicating with the insertion hole (5), wherein after the embroidery needle (3) is inserted into the insertion hole (5), the screw (4) is screwed into the screw hole C (6) to fix and connect with the needle bar (2) and the embroidery needle (3), characterized in that: The fixing frame (1) is provided with a pin removal assembly, which includes a horizontal frame (7) slidably disposed on the front side of the fixing frame (1), a vertical frame (8) slidably disposed on the horizontal frame (7), a rack (9) slidably disposed on the vertical frame (8), a drive gear (28) rotatably disposed on the vertical frame (8), and several driven gears (29), and a drive assembly. The drive gear (28) and the driven gears (29) are both meshed with the rack (9). The screw (4) is an internal hexagonal screw. A hexagonal column (10) matching the screw (4) is fixedly disposed on the rear side of the driven gear (29).

2. The embroidery machine with automatic needle removal according to claim 1, characterized in that: The fixed frame (1) has side strips (11) fixedly installed on both the left and right sides. A T-shaped groove (12) is opened on the front side wall of the side strip (11). A T-shaped block (13) matching the T-shaped groove (12) is fixedly installed on the rear side of the cross frame (7). The T-shaped block (13) is located in the T-shaped groove (12) and is slidably connected to the side strip (11).

3. The embroidery machine with automatic needle removal according to claim 2, characterized in that: The drive assembly includes a right frame (14) fixedly mounted on the right side of the side bar (11), a screw A (15) rotatably mounted on the right frame (14), and a motor A (16) fixedly mounted above the right frame (14). The output shaft of the motor A (16) is fixedly connected to the screw A (15). A right block (17) is fixedly mounted on the right side of the cross frame (7). The right block (17) has a threaded hole A (18) extending vertically. The screw A (15) is located inside the threaded hole A (18) and threadedly connected to the right block (17).

4. The embroidery machine with automatic needle removal according to claim 1, characterized in that: The drive assembly also includes a screw B (19) rotatably mounted on the cross frame (7) and a motor B (20) fixedly mounted on the front side of the cross frame (7). The output shaft of the motor B (20) is fixedly connected to the screw B (19). The vertical frame (8) has a through screw hole B (21) extending from front to back. The screw B (19) is located inside the screw hole B (21) and threadedly connected to the vertical frame (8).

5. An automatic needle removal embroidery machine according to claim 1, characterized in that: The drive assembly also includes a motor C (22) fixedly mounted on the front side of the vertical frame (8), and the output shaft of the motor C (22) is fixedly connected to the drive gear (28).

6. The embroidery machine with automatic needle removal according to claim 1, characterized in that: A long strip (23) is fixedly installed on the vertical frame (8), and a groove (24) is provided on the bottom wall of the rack (9). The long strip (23) is inserted into the groove (24) and contacts the rack (9).

7. An automatic needle removal embroidery machine according to claim 1, characterized in that: The needle removal assembly also includes a needle box (25), on the top wall of which a needle placement groove (26) and several needle placement holes (27) are provided.

Images