Simple to operate safety sewing device for knitwear

Abstract

The application discloses a simple knitting product sewing device with safety operation and belongs to the technical field of sewing disc machines. The device comprises a sewing disc machine, the sewing disc machine comprises a rack and a needle disc rotatably arranged on the rack, a moving frame is arranged on the rack, two moving blocks and an abutting assembly for driving the two moving blocks to move close to each other are arranged on the moving frame, sponge blocks are fixed to the opposite inner sides of the two moving blocks respectively, the two sponge blocks are arranged on the upper and lower sides of the needle disc respectively, the sponge blocks can abut against sewing needles on the needle disc, a pushing assembly for pushing the moving blocks to move along the radial direction of the needle disc and a cleaning assembly for cleaning impurities on the sponge blocks are arranged on the moving frame. The device can automatically clean the impurities on the sewing needles.

Description

Technical Field

[0001] This application relates to the technical field of sewing machine devices, and in particular to a safe and easy-to-operate sewing device for knitted fabrics. Background Technology

[0002] Knitted garment pieces can be knitted using a flat knitting machine or cut from greige fabric using a circular knitting machine. However, regardless of the method of knitting, all garment pieces must undergo the sewing process to become a wearable knitted garment.

[0003] When sewing knitted fabrics, the yarn loops on both sides must be aligned front to back before sewing; otherwise, wrinkles will form at the seam. Additionally, the yarn loops must be kept on the same warp thread during sewing; otherwise, the seam thread and warp threads will intersect, affecting the appearance of the knitted fabric. A commonly used sewing device is a sewing machine. The two pieces of knitted fabric to be sewn are hung on the large needle of the rotating needle plate on the sewing machine, and the machine's needle picks up the two pieces of knitted fabric and sews them together.

[0004] However, when using a sewing machine, workers need to manually loop the yarn loops of the knitted fabric onto the large needles of the sewing machine. The distance between two adjacent needles is very small, and some yarn and other impurities from the knitted fabric can easily get stuck between the two adjacent needles, making them difficult to clean. Summary of the Invention

[0005] To address the problem of difficulty in cleaning yarn segments and other impurities embedded between two adjacent needles, this application provides a safe and easy-to-operate knitwear sewing device.

[0006] The knitwear sewing device provided in this application, which is safe and easy to operate, adopts the following technical solution:

[0007] A safe and easy-to-operate knitwear sewing device includes a sewing machine. The sewing machine includes a frame and a needle plate rotatably mounted on the frame. A movable frame is provided on the frame, and two movable blocks and an abutment component for driving the two movable blocks closer to each other are provided on the movable frame. Sponge blocks are fixed to the inner sides of the two movable blocks respectively. The two sponge blocks are located on the upper and lower sides of the needle plate respectively, and the sponge blocks can abut against the sewing needles on the needle plate. The movable frame is provided with a pushing component for pushing the movable blocks to move radially along the needle plate and a cleaning component for removing impurities from the sponge blocks.

[0008] By adopting the above technical solution, the abutting component brings the two moving blocks closer to each other, thereby causing the sponge block to come into contact with the needle. The pushing component drives the sponge block to move radially along the needle plate, thereby removing impurities from the needle with the two sponge blocks. Then, the cleaning component cleans the sponge block, thus achieving automatic cleaning of impurities from the needle with high cleaning efficiency.

[0009] Preferably, the frame has two arc-shaped tracks fixed on it, which are located on the upper and lower sides of the needle plate, respectively. The length direction of the arc-shaped tracks is arranged along the circumference of the needle plate. The movable frame includes two parallel horizontal plates, with a connecting vertical plate fixed between them. The horizontal plates are arranged radially along the needle plate, and the two horizontal plates are located on the upper and lower sides of the needle plate, respectively. The movable block is mounted on the horizontal plates. A slider is fixed on the side of the horizontal plates away from the needle plate. A groove is provided on the side of the arc-shaped track near the needle plate. The slider slides along the length direction of the arc-shaped track through the groove and engages with the arc-shaped track.

[0010] By adopting the above technical solution, when the operator uses the sewing machine, the sewing disc will rotate. When the sponge block comes into contact with the sewing needle, the sponge block moves radially along the needle disc and rotates with the needle disc at the same time. The arc-shaped track limits the horizontal plate, and the sponge block drives the horizontal plate to move radially along the needle disc.

[0011] Preferably, the horizontal plate has a mounting groove on its side near the needle plate, the moving block has a moving rod mounted on its side away from the needle plate, and a mounting block is fixed to one end of the moving rod away from the moving block. The mounting block slides and engages with the horizontal plate along its length direction through the mounting groove. The pushing assembly includes a reciprocating screw rotatably mounted in the mounting groove, and the mounting block is sleeved on the outer periphery of the reciprocating screw. The mounting block and the reciprocating screw are threadedly engaged.

[0012] By adopting the above technical solution, the reciprocating screw is rotated, which drives the mounting block to move back and forth along the length of the horizontal plate. Then, the moving rod drives the moving block to move along the length of the horizontal plate, so that the sponge block comes into contact with the needle and moves radially along the needle plate, so as to remove impurities from the needle.

[0013] Preferably, a worm gear is fixedly sleeved on the outer periphery of the reciprocating lead screw, a vertically arranged worm is rotatably mounted on the connecting vertical plate, the worm gear and the worm mesh with each other, a drive motor is mounted on the moving frame, and the output end of the drive motor is fixedly connected to the end of the worm.

[0014] By adopting the above technical solution, the drive motor is started, which drives the worm to rotate, the worm to rotate the worm wheel, and the worm wheel to rotate the reciprocating screw, thereby driving the two sponge blocks to move synchronously.

[0015] Preferably, the movable rod includes a connecting sleeve and a connecting rod slidably installed in the connecting sleeve. The end of the connecting rod away from the needle plate is fixedly connected to the mounting block, and the end of the connecting sleeve near the needle plate is fixedly connected to the movable block. The abutting component includes an abutting spring sleeved on the outer periphery of the connecting rod. One end of the abutting spring is fixedly connected to the mounting block, and the other end of the abutting spring is fixedly connected to the connecting sleeve.

[0016] By adopting the above technical solution, the connecting sleeve moves towards the needle plate under the elastic force of the abutment spring, thereby causing the sponge block to abut against the needle plate.

[0017] Preferably, a guide block is fixed on the outer peripheral surface of the connecting rod, and a guide groove is provided on the inner wall of the connecting sleeve. The guide block slides and engages with the connecting sleeve vertically through the guide groove.

[0018] By adopting the above technical solution, the guide block moves vertically in the guide groove, thereby limiting the connecting sleeve and making it difficult for the moving block to rotate. This allows the two sponge blocks to fit together more tightly when they come into contact with the sewing needle.

[0019] Preferably, a support frame is fixed to the side of the connecting vertical plate near the moving block, and the cleaning assembly includes a cleaning roller rotatably mounted on the support frame, which can adhere impurities on the sponge block; a magnetic block for attracting the moving block is embedded and fixed to the side of the horizontal plate near the cleaning roller, and the attraction force of the magnetic block on the moving block is greater than the elastic force of the abutment spring.

[0020] By adopting the above technical solution, when the sponge block moves to a position close to the first magnetic block, the moving block moves towards the mounting block under the attraction of the first magnetic block, the two sponge blocks separate, and the sponge block continues to move towards the connecting vertical plate. The side of the sponge block away from the moving block is in contact with the outer peripheral surface of the cleaning roller, and the cleaning roller adheres to the impurities on the sponge block, thereby achieving the cleaning of the sponge block.

[0021] Preferably, two limiting blocks are fixed on the outer peripheral surface of the connecting sleeve, two baffles are fixed on the side of the horizontal plate near the needle plate, a limiting plate is fixed on the side of the baffle near the moving rod, and the side of the limiting block near the needle plate can abut against the side of the limiting plate near the horizontal plate.

[0022] By adopting the above technical solution, when the sponge block moves away from the connecting vertical plate under the action of the reciprocating screw, the limiting block gradually approaches the limiting plate, and the limiting block is located on the side of the limiting plate closer to the horizontal plate. When the moving block is not attracted by the magnetic block, the limiting block abuts against the limiting plate under the action of the abutting spring, thereby keeping the two sponge blocks in a separated state. When the sponge block moves to the side of the horizontal plate away from the connecting vertical plate, the limiting block separates from the limiting plate, and the sponge block abuts against the needle plate again under the action of the abutting spring.

[0023] Preferably, the mounting groove has a control groove on the inner wall near the connecting vertical plate. The horizontal plate slides along its length via the control groove to mount a control block. A return spring is fixed to the end of the control block away from the slider. The end of the return spring away from the control block is fixedly connected to the inner wall of the control groove. A movable contact is embedded and fixed on the side of the control block. A fixed contact for electrical contact with the movable contact is embedded and fixed on the inner wall of the control groove. An electromagnetic block for attracting the slider is fixed to one end of the arc-shaped track. The movable contact is electrically connected to the electromagnetic block, and the fixed contact is electrically connected to the power supply.

[0024] By adopting the above technical solution, when the mounting block moves to the side of the horizontal plate close to the connecting vertical plate, the mounting block abuts against the control block and pushes the control block to move towards the direction close to the reset spring, so that the moving contact and the fixed contact make electrical contact, the power supply supplies power to the electromagnetic block, the electromagnetic block attracts the slider, and the slider drives the horizontal plate to reset.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The abutting component brings two moving blocks closer together, so that the sponge block comes into contact with the needle. The pushing component moves the sponge block radially along the needle plate, so that the two sponge blocks remove impurities from the needle. Then, the cleaning component cleans the sponge block, thus achieving automatic cleaning of impurities from the needle with high cleaning efficiency.

[0027] 2. When the sponge block moves to a position close to the first magnetic block, the moving block moves towards the mounting block under the attraction of the first magnetic block, the two sponge blocks separate, and the sponge block continues to move towards the connecting vertical plate. The side of the sponge block away from the moving block comes into contact with the outer circumference of the cleaning roller, and the cleaning roller adheres to the impurities on the sponge block, thereby cleaning the sponge block.

[0028] 3. When the sponge block moves away from the connecting vertical plate under the action of the reciprocating screw, the limiting block gradually approaches the limiting plate, and the limiting block is located on the side of the limiting plate closer to the horizontal plate. When the moving block is not attracted by the magnetic block one, the limiting block abuts against the limiting plate under the action of the abutting spring, thereby keeping the two sponge blocks in a separated state. When the sponge block moves to the side of the horizontal plate away from the connecting vertical plate, the limiting block separates from the limiting plate, and the sponge block abuts against the needle plate again under the action of the abutting spring. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a safe and easy-to-operate knitwear sewing device according to an embodiment of this application.

[0030] Figure 2 This is a schematic diagram of the installation of the arc-shaped track and the moving frame in the safe and simple knitting sewing device according to an embodiment of this application.

[0031] Figure 3 This is a cross-sectional view of the movable frame in the safe and simple knitting sewing device according to an embodiment of this application.

[0032] Figure 4 This is a cross-sectional view of the moving rod in the safe and simple knitting sewing device according to an embodiment of this application.

[0033] Figure 5 This is a cross-sectional view of the horizontal plate in the safe and easy-to-operate knitwear sewing device according to an embodiment of this application.

[0034] Reference numerals: 1. Sewing machine; 11. Frame; 12. Needle plate; 13. Arc track; 14. Slide groove; 2. Moving frame; 21. Horizontal plate; 22. Connecting vertical plate; 23. Slider; 24. Mounting groove; 25. Mounting block; 3. Moving rod; 31. Connecting sleeve; 32. Connecting rod; 33. Guide block; 34. Guide groove; 35. Abutment spring; 36. Moving block; 37. Sponge block; 38. Limiting block; 4. Pushing assembly; 41. Reciprocating screw; 42. Mounting cavity; 43. Worm gear; 44. Worm wheel; 45. Drive motor; 5. Cleaning assembly; 51. Support frame; 52. Support plate; 53. Cleaning roller; 54. Magnetic block one; 55. Baffle; 56. Limiting plate; 6. Control block; 61. Control groove; 62. Return spring; 63. Moving contact piece; 64. Fixed contact piece; 65. Electromagnetic block. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0036] This application discloses a safe and easy-to-operate knitwear sewing device. (Refer to...) Figure 1 and Figure 2A safe and easy-to-operate knitting sewing device includes a sewing machine 1, which includes a frame 11 and a needle plate 12 rotatably mounted on the frame 11. Two arc-shaped tracks 13 are fixed on the frame 11, located on the upper and lower sides of the needle plate 12 respectively, with the length of the tracks 13 circumferentially aligned with the needle plate 12. A movable frame 2 is installed between the two arc-shaped tracks 13, comprising two parallel horizontal plates 21, with a vertically aligned connecting plate 22 fixed between them. The length of the horizontal plates 21 is radially aligned with the needle plate 12. A slider 23, which is a dovetail block, is fixed to the side of the horizontal plates 21 away from the needle plate 12. A groove 14 is provided on the side of the arc-shaped tracks 13 near the needle plate 12, through which the slider 23 slides and engages with the arc-shaped tracks 13 along their length.

[0037] Reference Figure 1 and Figure 3 A mounting groove 24 is provided on the side of the horizontal plate 21 near the needle plate 12. A mounting block 25 is mounted on the horizontal plate 21 by sliding along its length through the mounting groove 24. A moving rod 3 is mounted on the side of the mounting block 25 near the needle plate 12, and a moving block 36 is mounted on one end of the moving rod 3 near the needle plate 12. Sponge blocks 37 are fixed to the inner sides of the two moving blocks 36 respectively. The two sponge blocks 37 are located on the upper and lower sides of the needle plate 12 respectively, and the sponge blocks 37 can abut against the sewing needles on the needle plate 12. The moving frame 2 is provided with a pushing component 4 for pushing the moving blocks 36 to move radially along the needle plate 12 and a cleaning component 5 for cleaning impurities from the sponge blocks 37.

[0038] Reference Figure 3 The driving component 4 includes a reciprocating lead screw 41 rotatably mounted in the mounting groove 24, and a mounting block 25 sleeved on the outer periphery of the reciprocating lead screw 41, with the mounting block 25 threadedly engaging with the reciprocating lead screw 41. A mounting cavity 42 is provided within the connecting vertical plate 22, and a worm gear 43 is rotatably mounted within the mounting cavity 42. A worm wheel 44 is fixedly sleeved on the outer periphery of the reciprocating lead screw 41, and the worm wheel 44 meshes with the worm gear 43. A drive motor 45 is fixedly mounted on the top surface of the connecting vertical plate 22, and the output end of the drive motor 45 is fixedly connected to the top end of the worm gear 43.

[0039] Start the drive motor 45, which drives the worm 43 to rotate. The worm 43 drives the two worm wheels 44 to rotate, and the worm wheels 44 drive the reciprocating screw 41 to rotate synchronously, thereby driving the two moving blocks 36 to move back and forth along the length of the horizontal plate 21.

[0040] Reference Figure 1 and Figure 4The movable rod 3 includes a connecting sleeve 31 and a connecting rod 32 slidably installed within the connecting sleeve 31. The end of the connecting rod 32 furthest from the needle plate 12 is fixedly connected to the mounting block 25, and the end of the connecting sleeve 31 closest to the needle plate 12 is fixedly connected to the movable block 36. Two symmetrically arranged guide blocks 33 are fixed to the outer circumference of the connecting rod 32. A guide groove 34 is formed on the inner wall of the connecting sleeve 31, through which the guide blocks 33 slide vertically with the connecting sleeve 31. A retaining spring 35 is fitted around the outer circumference of the connecting rod 32. One end of the retaining spring 35 is fixedly connected to the side of the mounting block 25 closest to the needle plate 12, and the other end of the retaining spring 35 is fixedly connected to the side of the connecting sleeve 31 furthest from the needle plate 12. Under the elastic force of the abutment spring 35, the connecting sleeve 31 moves toward the needle plate 12. The connecting sleeve 31 drives the moving block 36 to move, thereby bringing the two moving blocks 36 closer to each other, so that the sponge block 37 abuts against the sewing needle on the needle plate 12. The sewing needle is sandwiched between the two sponge blocks 37, and the sponge blocks 37 can remove impurities from the sewing needle.

[0041] Reference Figure 3 Two support frames 51 are fixed to the side of the connecting vertical plate 22 near the movable block 36. The support frames 51 include two horizontally arranged support plates 52. The cleaning assembly 5 includes a cleaning roller 53 rotatably mounted between the two support plates 52. The outer peripheral surface of the cleaning roller 53 has a certain degree of adhesiveness, and the cleaning roller 53 can adhere to impurities on the sponge block 37. A magnetic block 54 for attracting the movable block 36 is embedded and fixed to the side of the horizontal plate 21 near the cleaning roller 53. The attraction force of the magnetic block 54 on the movable block 36 is greater than the elastic force of the abutment spring 35.

[0042] Two sponge blocks 37 move toward the connecting vertical plate 22 under the action of the reciprocating screw 41. When the sponge block 37 moves to the bottom of the magnetic block 54, the moving block 36 moves upward under the attraction of the magnetic block 54. The sponge block 37 is located on the side of the cleaning roller 53 near the horizontal plate 21. The side of the sponge block 37 away from the moving block 36 is in contact with the cleaning roller 53. As the sponge block 37 continues to move, the cleaning roller 53 adheres to the impurities on the sponge block 37, thereby completing the cleaning of the sponge block 37.

[0043] Reference Figure 3 and Figure 5 Two baffles 55 are fixed to the side of the horizontal plate 21 near the needle plate 12, and a horizontally arranged limiting plate 56 is fixed to the side of the baffles 55 near the needle plate 12. Two symmetrically arranged limiting blocks 38 are fixed to the outer circumferential surface of the connecting sleeve 31, and the side of the limiting block 38 near the needle plate 12 can abut against the side of the limiting plate 56 near the horizontal plate 21.

[0044] When the movable block 36 moves to a position close to the magnetic block 54, it moves towards the horizontal plate 21 to facilitate the cleaning roller 53 cleaning the sponge block 37. When the movable block 36 moves away from the connecting vertical plate 22, it remains positioned on the side of the limiting plate 56 close to the horizontal plate 21 under the attraction of the magnetic block 54. When the movable block 36 moves to a position no longer subject to the attraction of the magnetic block 54, it moves away from the horizontal plate 21 under the elastic force of the abutment spring 35. When the plate 21 moves in the direction of movement, the moving block 36 drives the limiting block 38 to move synchronously through the connecting sleeve 31. The limiting block 38 abuts against the limiting plate 56, thereby limiting the moving block 36 and keeping the two sponge blocks 37 in a separated state. When the moving block 36 moves to the end of the horizontal plate 21 away from the connecting vertical plate 22, the limiting block 38 separates from the limiting plate 56. Under the elastic force of the abutment spring 35, the moving block 36 moves towards the needle plate 12, thereby abutting the sponge block 37 against the needle plate 12.

[0045] Reference Figure 1 , Figure 2 and Figure 5 A control groove 61 is provided on the inner wall of the mounting groove 24 near the connecting vertical plate 22. A control block 6 is mounted on the horizontal plate 21, sliding along its length via the control groove 61. A return spring 62 is fixed to the end of the control block 6 away from the slider 23, and the end of the return spring 62 away from the control block 6 is fixedly connected to the inner wall of the control groove 61. A movable contact piece 63 is embedded and fixed on the top surface of the control block 6, and a fixed contact piece 64 for electrical contact with the movable contact piece 63 is embedded and fixed on the inner wall of the control groove 61. An electromagnetic block 65 is fixed to one end of the arc-shaped track 13, which can attract the slider 23. The movable contact piece 63 is electrically connected to the electromagnetic block 65, and the fixed contact piece 64 is electrically connected to the power supply.

[0046] During the sewing process of the worker using the sewing machine 1 to sew the knitted fabric, the needle plate 12 rotates. When the moving block 36 moves along the length of the horizontal plate 21, the sponge block 37 clamps the sewing needle and rotates with the needle plate 12, thereby driving the horizontal plate 21 to move circumferentially along the needle plate 12. When the moving block 36 moves to the side of the horizontal plate 21 close to the connecting vertical plate 22, the mounting block 25 abuts against the control block 6, thereby pushing the control block 6 to move towards the connecting vertical plate 22. The moving contact 63 and the fixed contact 64 make electrical contact, and the power supply energizes the electromagnetic block 65. The electromagnetic block 65 attracts the slider 23, thereby moving the horizontal plate 21 towards the electromagnetic block 65, so that the horizontal plate 21 returns to its original position.

[0047] The implementation principle of a safe and simple knitting sewing device according to an embodiment of this application is as follows: In the initial state, the horizontal plate 21 is located on the side of the arc track 13 close to the electromagnetic block 65. The sponge block 37 abuts against the needle plate 12 under the elastic force of the abutment spring 35. The drive motor 45 is started, and the drive motor 45 drives the reciprocating screw 41 to rotate. The reciprocating screw 41 drives the sponge block 37 to move towards the direction close to the connecting vertical plate 22. The two sponge blocks 37 clamp the sewing needle and remove impurities from the sewing needle.

[0048] When the sponge block 37 moves to a position close to the magnetic block 54, the magnetic block 54 attracts the moving block 36, the two sponge blocks 37 move away from each other, the sponge block 37 continues to move, the cleaning roller 53 adheres to the side of the sponge block 37 away from the moving block 36, and the cleaning roller 53 adheres to the impurities on the sponge block 37.

[0049] As the sponge block 37 moves away from the connecting vertical plate 22 under the action of the reciprocating screw 41, the limiting block 38 moves to the side of the limiting plate 56 near the horizontal plate 21. When the moving block 36 is not attracted by the magnetic block 54, the limiting block 38 abuts against the limiting plate 56, keeping the two sponge blocks 37 separated. When the sponge block 37 moves to the end of the horizontal plate 21 away from the connecting vertical plate 22, the limiting block 38 separates from the limiting plate 56, and the sponge block 37 moves towards the needle plate 12 under the elastic force of the abutting spring 35, so that the sponge block 37 abuts against the needle plate 12 again.

[0050] 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 safe and easy-to-operate knitwear sewing device, characterized in that: The device includes a sewing machine (1), which includes a frame (11) and a needle plate (12) rotatably mounted on the frame (11). A movable frame (2) is provided on the frame (11). The movable frame (2) is provided with two movable blocks (36) and an abutment component for driving the two movable blocks (36) to approach each other. Sponge blocks (37) are fixed to the inner sides of the two movable blocks (36) respectively. The two sponge blocks (37) are located on the upper and lower sides of the needle plate (12) respectively. The sponge blocks (37) can abut against the sewing needles on the needle plate (12). The movable frame (2) is provided with a pushing component (4) for pushing the movable blocks (36) to move radially along the needle plate (12) and a cleaning component (5) for cleaning impurities on the sponge blocks (37). Two arc-shaped tracks (13) are fixed on the frame (11). The two arc-shaped tracks (13) are located on the upper and lower sides of the needle plate (12), respectively. The length direction of the arc-shaped tracks (13) is arranged along the circumference of the needle plate (12). The moving frame (2) includes two parallel horizontal plates (21). A connecting vertical plate (22) is fixed between the two horizontal plates (21). The horizontal plates (21) are arranged radially along the needle plate (12). The flat plate (21) is located on the upper and lower sides of the needle plate (12), the moving block (36) is installed on the horizontal plate (21), the horizontal plate (21) is fixed with a slider (23) on the side away from the needle plate (12), the arc track (13) is provided with a groove (14) on the side near the needle plate (12), and the slider (23) slides and cooperates with the arc track (13) along the length direction of the arc track (13) through the groove (14); The horizontal plate (21) has a mounting groove (24) on its side near the needle plate (12). The moving block (36) has a moving rod (3) mounted on its side away from the needle plate (12). The moving rod (3) has a mounting block (25) fixed at one end away from the moving block (36). The mounting block (25) slides and engages with the horizontal plate (21) along the length direction of the horizontal plate (21) through the mounting groove (24). The pushing assembly (4) includes a reciprocating screw (41) rotatably mounted in the mounting groove (24). The mounting block (25) is sleeved on the outer periphery of the reciprocating screw (41). The mounting block (25) and the reciprocating screw (41) are threadedly engaged. The movable rod (3) includes a connecting sleeve (31) and a connecting rod (32) slidably installed in the connecting sleeve (31). The end of the connecting rod (32) away from the needle plate (12) is fixedly connected to the mounting block (25), and the end of the connecting sleeve (31) near the needle plate (12) is fixedly connected to the movable block (36). The abutting component includes an abutting spring (35) sleeved on the outer periphery of the connecting rod (32). One end of the abutting spring (35) is fixedly connected to the mounting block (25), and the other end of the abutting spring (35) is fixedly connected to the connecting sleeve (31). The connecting vertical plate (22) is fixed with a support frame (51) near the side of the moving block (36). The cleaning assembly (5) includes a cleaning roller (53) rotatably mounted on the support frame (51). The cleaning roller (53) can adhere impurities on the sponge block (37). The horizontal plate (21) is embedded with a magnetic block (54) for attracting the moving block (36) near the side of the cleaning roller (53). The magnetic block (54) has a greater attraction force on the moving block (36) than the elastic force of the abutment spring (35).

2. The safe and easy-to-operate knitwear sewing device according to claim 1, characterized in that: A worm wheel (44) is fixedly fitted around the outer periphery of the reciprocating screw (41). A vertically arranged worm (43) is rotatably mounted on the connecting vertical plate (22). The worm wheel (44) meshes with the worm (43). A drive motor (45) is mounted on the moving frame (2). The output end of the drive motor (45) is fixedly connected to the end of the worm (43).

3. The safe and easy-to-operate knitwear sewing device according to claim 1, characterized in that: A guide block (33) is fixed on the outer circumferential surface of the connecting rod (32), and a guide groove (34) is provided on the inner wall of the connecting sleeve (31). The guide block (33) slides and engages with the connecting sleeve (31) vertically through the guide groove (34).

4. The safe and easy-to-operate knitwear sewing device according to claim 1, characterized in that: Two limiting blocks (38) are fixed on the outer circumferential surface of the connecting sleeve (31). Two baffles (55) are fixed on the side of the horizontal plate (21) near the needle plate (12). A limiting plate (56) is fixed on the side of the baffle (55) near the moving rod (3). The side of the limiting block (38) near the needle plate (12) can abut against the side of the limiting plate (56) near the horizontal plate (21).

5. The safe and easy-to-operate knitwear sewing device according to claim 1, characterized in that: The mounting groove (24) has a control groove (61) on the inner wall near the connecting vertical plate (22). The horizontal plate (21) slides along its own length through the control groove (61) to install a control block (6). A return spring (62) is fixed to one end of the control block (6) away from the slider (23). The end of the return spring (62) away from the control block (6) is fixedly connected to the inner wall of the control groove (61). A moving contact piece (63) is embedded and fixed on the side of the control block (6). A fixed contact piece (64) for electrical contact with the moving contact piece (63) is embedded and fixed on the inner wall of the control groove (61). An electromagnetic block (65) for attracting the slider (23) is fixed to one end of the arc track (13). The moving contact piece (63) is electrically connected to the electromagnetic block (65), and the fixed contact piece (64) is electrically connected to the power supply.

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