A flat sewing machine for school uniform sewing and a use method

Abstract

The present application relates to a kind of school uniform sewing with flat sewing machine and method for using, including fixed base plate, sewing machine, rotary support shaft, rotary support plate and drive shaft, by driving gear on rack rotation, so that sliding tube can slide on sliding rod, so that the height of fixed base plate can be adjusted to suitable position according to worker, when adjusting to the upper portion of school badge by rotary lower pressing shaft, school badge is pressed by pressure head, in the process of sewing, sliding plate is moved by ball screw, so that pressure head can drive school badge to translate, simultaneously, drive motor two drives drive shaft rotation, so that pressure head can drive school badge to rotate around rotary support shaft, then rotary lower pressing shaft is rotated by rotary motor, so that pressure head can drive school badge to rotate, further make the edge of school badge can be always located in the needle head of sewing machine directly below, guarantee that school badge and clothes can be reliably sewn together by sewing machine, and also can prevent to hurt worker finger.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flat bed sewing machine, in particular to a school uniform sewing flat bed sewing machine and using method. BACKGROUND

[0002] The school uniform is the school's standard management and unified dress requirement, and the school uniform of the general school needs to have the school badge of the school, which directly affects the school image. In the daily life of the school, the school uniform can show the students' spirit and vitality, and is also the exclusive symbol of the students' youth. The school uniform and the school badge are fixed on the school uniform by sewing. However, the existing sewing method is that the worker first places the school uniform on the flat bed sewing machine, then places the school badge on the school uniform and presses the school badge to prevent the school badge from moving during the sewing process. This sewing method is easy to prick the worker's fingers, and the school badge is easy to deviate during the sewing process, resulting in poor sewing effect of the school badge. Moreover, the height of the existing flat bed sewing machine is fixed, and if the worker is short, the worker needs to sit on a high stool to operate, which is easy to cause the worker to be tired. SUMMARY

[0003] In order to overcome the technical defects of the prior art, the present application provides a school uniform sewing flat bed sewing machine and using method. The driving gear rotates on the rack, so that the sliding pipe can slide on the sliding rod, so that the height of the fixed bottom plate can be adjusted to the appropriate position according to the worker. When the rotating down pressure shaft is adjusted above the school badge, the pressure head presses the school badge. During the sewing process, the sliding plate can be moved by the ball screw, so that the pressure head can drive the school badge to translate. At the same time, the driving motor two drives the driving shaft to rotate, so that the pressure head can drive the school badge to rotate around the rotating support shaft. Then, the rotating motor drives the rotating down pressure shaft to rotate, so that the pressure head can drive the school badge to rotate, thereby ensuring that the device can reliably sew the school badge and the clothes together, and also preventing the worker's fingers from being pricked.

[0004] The technical solution adopted in this invention is: a flatbed sewing machine for school uniforms, comprising a fixed base plate and a sewing machine, the sewing machine being located on the top outer wall of the fixed base plate, a rotating support shaft being movably engaged on the fixed base plate, a support spring being installed on the side wall of the rotating support shaft, a rotating support plate and a bottom driving plate being respectively installed at both ends of the rotating support shaft, a support seat being respectively installed on the bottom outer wall of the rotating support plate, a ball screw being rotatably connected to the support seat, the ball screw being connected to a sliding plate through a ball nut, and a sliding plate being rotatably connected to... The device includes a rotating downward pressing shaft with a pressing head mounted at one end. A bottom connecting frame is mounted on the bottom outer wall of the fixed base plate, and a drive shaft is rotatably connected to the bottom connecting frame. A snap-fit ​​shaft is mounted on the top outer wall of the drive shaft, and the snap-fit ​​shaft is movably snapped into the bottom driving plate. A device frame is mounted on the bottom outer wall of the bottom connecting frame, and a drive mechanism is mounted on the bottom outer wall of the device frame. A pressing rod is connected to the output end of the drive mechanism, and the pressing rod is movably snapped into the rotating support shaft. A pressing block is mounted on one end of the pressing rod.

[0005] Preferably, in order to drive the ball screw to rotate, a drive motor is provided on the bottom outer wall of the rotating support plate, and the output end of the drive motor is connected to the ball screw.

[0006] Preferably, in order to drive the drive shaft to rotate, a second drive motor is installed on the bottom outer wall of the bottom connecting frame, the output end of the second drive motor is connected to a second drive pulley, a second driven pulley is installed on the side wall of the drive shaft, and the second drive pulley is connected to the second driven pulley via a transmission belt.

[0007] Preferably, in order to drive the lower pressure shaft to rotate, a rotary motor is installed on the top outer wall of the sliding plate, the output end of the rotary motor is connected to a drive pulley, a driven pulley is installed on the side wall of the rotating lower pressure shaft, and the drive pulley is connected to the driven pulley via a transmission belt.

[0008] Preferably, in order to improve the stability of the sliding plate during movement, a guide frame is installed on the bottom outer wall of the rotating support plate, and the guide frame is connected to the sliding plate through a slider.

[0009] Preferably, in order to make the height of the device adjustable, sliding tubes are respectively installed on the bottom outer wall of the fixed base plate, sliding rods are slidably engaged on the sliding tubes, and the device base plate is installed on the bottom outer wall of the sliding rods.

[0010] Preferably, in order to drive the fixed base plate to move up and down, a supporting base plate is installed on one side wall of the sliding tube, a supporting side plate is installed on the top outer wall of the supporting base plate, a supporting main shaft is rotatably connected to the supporting side plate, a driving gear is installed on the side wall of the supporting main shaft, a supporting frame is installed on the top outer wall of the device base plate, a rack is installed on one side wall of the supporting frame, and the driving gear is meshed with the rack.

[0011] Preferably, in order to drive the support spindle to rotate, a motor base plate is installed on one side wall of the support base plate, a lifting motor is installed on the top outer wall of the motor base plate, the output end of the lifting motor is connected to a driving helical gear, a driven helical gear is installed on the side wall of the support spindle, and the driving helical gear and the driven helical gear are meshed together.

[0012] Preferably, in order to enable the rotating support plate to rotate better relative to the pressure block, a planar bearing is provided on the top outer wall of the rotating support plate.

[0013] The operation method of a flatbed sewing machine for school uniforms includes the following steps:

[0014] Step 1: The worker sits on a stool. The lifting motor drives the driving helical gear to rotate, which in turn drives the driven helical gear to rotate the supporting main shaft. This, in turn, causes the driving gear to rotate on the rack, allowing the sliding tube to slide on the sliding rod. This allows the height of the fixed base plate to be adjusted to a suitable position by the worker. Step 2: The worker places the clothing on the fixed base plate, then places the school badge on top. The drive motor one drives the ball screw to rotate, which in turn moves the sliding plate via the ball nut. This moves the rotating pressure shaft. Simultaneously, the drive motor two drives the driving pulley two to rotate, which in turn drives the drive shaft. This causes the snap-fit ​​shaft to rotate the bottom drive plate, which in turn drives the rotating support shaft to rotate the rotating support plate. This, in turn, causes the rotating support plate to move the rotating pressure shaft, adjusting it to position it above the school badge. At the same time, the driving mechanism drives the lower pressure rod to descend, so that the pressure block can drive the rotating support plate to descend, thereby allowing the pressure head to press the school badge and prevent the school badge from moving with the school uniform. Step 3: The school badge is sewn by the sewing machine. During the sewing process, the first drive motor rotates, so that the ball screw can drive the sliding plate to move, so that the pressure head can drive the school badge to move horizontally. At the same time, the second drive motor drives the drive shaft to rotate, and the drive shaft drives the rotating support shaft to rotate, so that the rotating support plate can drive the pressure head to move, so that the pressure head can drive the school badge to rotate around the rotating support shaft. Then, the rotating motor drives the first drive pulley to rotate, so that the first driven pulley can drive the rotating lower pressure shaft to rotate, so that the pressure head can drive the school badge to rotate. This ensures that the edge of the school badge is always located directly below the sewing needle of the sewing machine, ensuring that the sewing machine can reliably sew the school badge to the clothes, and also preventing workers' fingers from being pricked.

[0015] The beneficial effects of this invention are as follows: By rotating the drive gear on the rack, the sliding tube can slide on the sliding rod, thereby allowing the height of the fixed base plate to be adjusted to a suitable position according to the worker. When the rotating pressure shaft is adjusted above the school badge, the pressure head presses the school badge. During the sewing process, the ball screw can drive the sliding plate to move, allowing the pressure head to move the school badge horizontally. At the same time, the drive motor drives the drive shaft to rotate, allowing the pressure head to drive the school badge to rotate around the rotating support shaft. Then, the rotating motor drives the rotating pressure shaft to rotate, allowing the pressure head to drive the school badge to rotate. This ensures that the device can reliably sew the school badge to the clothing and also prevents workers' fingers from being injured. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the rotating support plate structure of the present invention.

[0018] Figure 3 This is a schematic diagram of the active gear structure of the present invention.

[0019] Figure 4 This is an enlarged structural diagram of point A in the present invention.

[0020] Figure 5 This is an enlarged structural diagram of point B in the present invention.

[0021] Figure 6 This is an enlarged structural diagram of point C in the present invention.

[0022] Figure 7 This is an enlarged structural diagram of point D in the present invention.

[0023] Explanation of reference numerals in the attached figures: 1. Fixed base plate; 2. Sewing machine; 3. Rotating support shaft; 4. Rotating support plate; 5. Bottom connecting frame; 6. Bottom driving plate; 7. Drive shaft; 8. Snap-fit ​​shaft; 9. Device frame; 10. Drive mechanism; 11. Press rod; 12. Press block; 13. Support seat; 14. Ball screw; 15. Sliding plate; 16. Rotating press shaft; 17. Press head; 18. Drive motor one; 19. Rotating motor; 20. Drive pulley one; 2 1. Driven pulley one; 22. Drive motor two; 23. Driven pulley two; 24. Driven pulley two; 25. Surface bearing; 26. Sliding tube; 27. Sliding rod; 28. Device base plate; 29. ​​Support base plate; 30. Support side plate; 31. Support main shaft; 32. Drive gear; 33. Motor base plate; 34. Lifting motor; 35. Driven helical gear; 36. Driven helical gear; 37. Support frame; 38. Rack; 39. Support spring; 40. Guide frame. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] As shown in the figure, this embodiment provides a flatbed sewing machine for school uniform sewing and its usage method, including a fixed base plate 1 and a sewing machine 2. The sewing machine 2 is located on the top outer wall of the fixed base plate 1. A rotating support shaft 3 is movably connected to the fixed base plate 1. A support spring 39 is installed on the side wall of the rotating support shaft 3. A rotating support plate 4 and a bottom driving plate 6 are respectively installed at both ends of the rotating support shaft 3. A support seat 13 is installed on the bottom outer wall of the rotating support plate 4. A ball screw 14 is rotatably connected to the support seat 13. The ball screw 14 is connected to a sliding plate 15 through a ball nut. A rotating downward pressure shaft 16 is rotatably connected to the sliding plate 15. A pressure head 17 is installed at one end of the rotating downward pressure shaft 16. A bottom connecting frame 5 is installed on the bottom outer wall of the fixed base plate 1. A drive shaft 7 is rotatably connected to the connecting frame 5. A snap-fit ​​shaft 8 is mounted on the top outer wall of the drive shaft 7, and the snap-fit ​​shaft 8 is movably snapped into the bottom driving plate 6. A device frame 9 is mounted on the bottom outer wall of the bottom connecting frame 5, and a drive mechanism 10 is mounted on the bottom outer wall of the device frame 9. The drive mechanism 10 is an electric telescopic rod, and a downward pressure rod 11 is connected to the output end of the drive mechanism 10. The downward pressure rod 11 is movably snapped into the rotating support shaft 3, and a pressure block 12 is mounted on one end of the downward pressure rod 11. A drive motor 18 is mounted on the bottom outer wall of the rotating support plate 4, and the output end of the drive motor 18 is connected to a ball screw 14. A drive motor 22 is mounted on the bottom outer wall of the bottom connecting frame 5, and the output end of the drive motor 22 is connected to a drive pulley 23. A driven pulley 24 is mounted on the side wall of drive shaft 7. A driving pulley 23 is connected to the driven pulley 24 via a transmission belt. A rotary motor 19 is mounted on the top outer wall of sliding plate 15. The output end of rotary motor 19 is connected to driving pulley 20. A driven pulley 21 is mounted on the side wall of rotating pressure shaft 16. Driving pulley 20 is connected to driven pulley 21 via a transmission belt. When school uniforms need to be sewn, drive mechanism 10, rotary motor 19, drive motor 22, and drive motor 18 are all electrically connected to an external PLC. The operation flow of the above-mentioned drive components can be preset according to the shape of the school badge, and the preset control program can be transmitted to the PLC. The PLC controls the operation of the above-mentioned drive components. First, the clothes are sewn... The uniform is placed on the fixed base plate 1, and then the school badge is placed on the uniform. Next, the drive motor 18 drives the ball screw 14 to rotate, causing the ball screw 14 to move the sliding plate 15 via the ball nut. This, in turn, moves the rotating lower pressure shaft 16. Simultaneously, the drive motor 22 drives the drive pulley 23 to rotate, causing the driven pulley 24 to rotate the drive shaft 7. This causes the locking shaft 8 to rotate the bottom drive plate 6, which in turn causes the rotating support shaft 3 to rotate the rotating support plate 4. The rotating support plate 4 then causes the rotating lower pressure shaft 16 to rotate around the rotating support shaft 3 by a certain angle, thus adjusting the rotating lower pressure shaft 16 above the school badge. Finally, the drive mechanism 10 lowers the pressure rod 11.This causes the pressure block 12 to drive the rotating support plate 4 to descend, allowing the pressure head 17 to press down on the school badge, preventing the badge and uniform from moving. Because the surface of the fixed base plate 1 is relatively smooth, the friction between the uniform and the fixed base plate 1 is low, while the friction between the badge and the uniform is relatively high. Therefore, during subsequent sewing, the uniform can move on the fixed base plate 1, while the badge and uniform remain relatively stationary under the action of the pressure head 17. Then, the sewing machine 2 sews the badge. During the sewing process, the drive motor 18 rotates, causing the ball screw 14 to drive the sliding plate 15 to move, allowing the pressure head 17 to move the badge horizontally. Simultaneously... The drive motor 22 drives the drive shaft 7 to rotate, which in turn drives the rotating support shaft 3 to rotate. This causes the rotating support plate 4 to move the pressure head 17, which in turn causes the pressure head 17 to rotate the school badge around the rotating support shaft 3. Then, the rotating motor 19 drives the drive pulley 20 to rotate, which in turn drives the driven pulley 21 to rotate the lower pressure shaft 16. This causes the pressure head 17 to rotate the school badge at a certain angle, ensuring that the edge of the school badge is always directly below the sewing needle of the sewing machine 2. This guarantees that the sewing machine 2 can reliably sew the school badge to the garment and also prevents the device from puncturing the worker during the sewing process.

[0026] A guide frame 40 is installed on the bottom outer wall of the rotating support plate 4. The guide frame 40 is connected to the sliding plate 15 through a slider. The guide frame 40 helps to improve the stability of the sliding plate 15 when it moves.

[0027] Sliding tubes 26 are installed on the bottom outer wall of the fixed base plate 1. Sliding rods 27 are slidably engaged on the sliding tubes 26. A device base plate 28 is installed on the bottom outer wall of the sliding rods 27. A support base plate 29 is installed on one side wall of the sliding tubes 26. A support side plate 30 is installed on the top outer wall of the support base plate 29. A support main shaft 31 is rotatably connected to the support side plate 30. A drive gear 32 is installed on the side wall of the support main shaft 31. A support frame 37 is installed on the top outer wall of the device base plate 28. A rack 38 is installed on one side wall of the support frame 37, and the drive gear 32 meshes with the rack 38. A motor base plate 33 is installed on one side wall of the support base plate 29. A lifting motor 34 is installed on the top outer wall of the device 3. The output end of the lifting motor 34 is connected to a driving helical gear 36. A driven helical gear 35 is installed on the side wall of the supporting main shaft 31. The driving helical gear 36 and the driven helical gear 35 are meshed together. Before using the device, the worker sits on a stool and drives the driving helical gear 36 to rotate through the lifting motor 34. This causes the driven helical gear 35 to drive the supporting main shaft 31 to rotate, which in turn causes the driving gear 32 to rotate on the rack 38. This allows the sliding tube 26 to slide on the sliding rod 27, so that the height of the fixed base plate 1 can be adjusted. This allows the device to be adjusted to a suitable height according to the worker's height, which is convenient for the worker to use.

[0028] A planar bearing 25 is provided on the top outer wall of the rotating support plate 4. When the pressure rod 11 descends, the pressure block 12 descends and first contacts the planar bearing 25. Then, the pressure block 12 drives the rotating support plate 4 to descend. The planar bearing 25 can reduce the friction when the pressure block 12 directly contacts the rotating support plate 4, so that the rotating support plate 4 can rotate better relative to the pressure block 12.

[0029] In use, the worker first sits on a stool. The lifting motor 34 drives the active helical gear 36 to rotate, causing the driven helical gear 35 to drive the supporting main shaft 31 to rotate. This causes the active gear 32 to rotate, and the active gear 32 rotates on the rack 38, allowing the sliding tube 26 to slide on the sliding rod 27. This allows the height of the fixed base plate 1 to be adjusted to a suitable position according to the worker. Next, the worker places clothing on the fixed base plate 1 and then places a school badge on the clothing. The drive motor 18 drives the ball screw 14 to rotate, causing the ball screw 14 to move the sliding plate 15 via the ball nut, thereby moving the rotating pressure shaft 16. Simultaneously, the drive motor 22 drives the active pulley 23 to rotate, causing the driven pulley 24 to drive the drive shaft 7 to rotate. This causes the locking shaft 8 to drive the bottom drive plate 6 to rotate, causing the rotating support shaft 3 to drive the rotating support plate 4 to rotate. The rotating support plate 4 then drives the rotating pressure shaft 16 to move, thus moving the rotating pressure shaft 16. When the school badge is adjusted to the top, the drive mechanism 10 drives the lower pressure rod 11 to descend, which in turn drives the pressure block 12 to descend the rotating support plate 4. This allows the pressure head 17 to press down on the school badge, preventing the school badge from moving with the school uniform. Then, the sewing machine 2 sews the school badge. During the sewing process, the drive motor 18 rotates, which causes the ball screw 14 to move the sliding plate 15, allowing the pressure head 17 to move the school badge horizontally. At the same time, the drive motor 22 drives the drive shaft 7 to rotate, which in turn drives the rotating support shaft 3 to rotate, allowing the rotating support plate 4 to move the pressure head 17. This allows the pressure head 17 to rotate the school badge around the rotating support shaft 3. Then, the rotating motor 19 drives the drive pulley 20 to rotate, which in turn drives the driven pulley 21 to rotate the rotating lower pressure shaft 16, allowing the pressure head 17 to rotate the school badge. This ensures that the edge of the school badge is always directly below the sewing needle of the sewing machine 2, guaranteeing that the sewing machine 2 can reliably sew the school badge and the clothing together.

[0030] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A flatbed sewing machine for school uniforms, comprising a fixed base plate (1) and a sewing machine (2), characterized in that: The sewing machine (2) is located on the top outer wall of the fixed base plate (1). A rotating support shaft (3) is movably connected to the fixed base plate (1). A support spring (39) is installed on the side wall of the rotating support shaft (3). A rotating support plate (4) and a bottom driving plate (6) are respectively installed at both ends of the rotating support shaft (3). A support seat (13) is installed on the bottom outer wall of the rotating support plate (4). A ball screw (14) is rotatably connected to the support seat (13). A sliding plate (15) is connected to the ball screw (14) through a ball nut. A rotating downward pressure shaft (16) is rotatably connected to the sliding plate (15). One end of the rotating downward pressure shaft (16) is mounted on... A pressure head (17) is installed. A bottom connecting frame (5) is installed on the bottom outer wall of the fixed base plate (1). A drive shaft (7) is rotatably connected to the bottom connecting frame (5). A snap-fit ​​shaft (8) is installed on the top outer wall of the drive shaft (7). The snap-fit ​​shaft (8) is movably snapped with the bottom driving plate (6). A device frame (9) is installed on the bottom outer wall of the bottom connecting frame (5). A drive mechanism (10) is installed on the bottom outer wall of the device frame (9). A lower pressure rod (11) is connected to the output end of the drive mechanism (10). The lower pressure rod (11) is movably snapped with the rotating support shaft (3). A pressure block (12) is installed at one end of the lower pressure rod (11). A drive motor (18) is provided on the bottom outer wall of the rotating support plate (4), and the output end of the drive motor (18) is connected to the ball screw (14). A second drive motor (22) is installed on the bottom outer wall of the bottom connecting frame (5). The output end of the second drive motor (22) is connected to a second drive pulley (23). A second driven pulley (24) is installed on the side wall of the drive shaft (7). The second drive pulley (23) is connected to the second driven pulley (24) via a transmission belt. A rotating motor (19) is installed on the top outer wall of the sliding plate (15). The output end of the rotating motor (19) is connected to a drive pulley (20). A driven pulley (21) is installed on the side wall of the rotating pressure shaft (16). The drive pulley (20) is connected to the driven pulley (21) via a transmission belt.

2. The flat sewing machine for school uniform sewing according to claim 1, characterized in that: A guide frame (40) is installed on the bottom outer wall of the rotating support plate (4), and the guide frame (40) is connected to the sliding plate (15) through a slider.

3. The flat sewing machine for school uniform sewing according to claim 1, characterized in that: Sliding tubes (26) are installed on the bottom outer wall of the fixed base plate (1), and sliding rods (27) are slidably connected to the sliding tubes (26). A device base plate (28) is installed on the bottom outer wall of the sliding rods (27).

4. A flat sewing machine for school uniform sewing according to claim 3, characterized in that: A support base plate (29) is installed on one side wall of the sliding tube (26), and a support side plate (30) is installed on the top outer wall of the support base plate (29). A support main shaft (31) is rotatably connected to the support side plate (30). A drive gear (32) is installed on the side wall of the support main shaft (31). A support frame (37) is installed on the top outer wall of the device base plate (28). A rack (38) is installed on one side wall of the support frame (37), and the drive gear (32) meshes with the rack (38).

5. A flat sewing machine for school uniform sewing according to claim 4, characterized in that: A motor base plate (33) is installed on one side wall of the support base plate (29), and a lifting motor (34) is installed on the top outer wall of the motor base plate (33). The output end of the lifting motor (34) is connected to a driving helical gear (36). A driven helical gear (35) is installed on the side wall of the support spindle (31), and the driving helical gear (36) and the driven helical gear (35) are meshed together.

6. A flat sewing machine for school uniform sewing according to claim 1, characterized in that: A planar bearing (25) is provided on the top outer wall of the rotating support plate (4).

7. A method of using a flatbed sewing machine for school uniforms, comprising using the flatbed sewing machine for school uniforms as described in claim 5, characterized in that, Includes the following steps: Step 1: The worker sits on a stool, and the lifting motor (34) drives the active helical gear (36) to rotate, so that the driven helical gear (35) can drive the support spindle (31) to rotate, thereby causing the active gear (32) to rotate. The active gear (32) rotates on the rack (38), so that the sliding tube (26) can slide on the sliding rod (27), thereby allowing the height of the fixed base plate (1) to be adjusted to a suitable position according to the worker. Step 2: Place the clothes on the fixed base plate (1), and then place the school badge on the clothes. Drive the ball screw (14) to rotate through the first drive motor (18), so that the ball screw (14) drives the sliding plate (15) to move through the ball nut, thereby driving the rotating pressing shaft (16) to move. At the same time, drive the second drive motor (22) to rotate the second drive pulley (23), so that the second driven pulley (24) can drive the drive shaft (7) to rotate, so that the snap-fit ​​shaft (8) can... The bottom drive plate (6) is rotated, which causes the rotating support shaft (3) to rotate the rotating support plate (4), which in turn causes the rotating support plate (4) to move the rotating pressure shaft (16). When the rotating pressure shaft (16) is adjusted to be above the school badge, the driving mechanism (10) drives the pressure rod (11) to descend, which causes the pressure block (12) to drive the rotating support plate (4) to descend, so that the pressure head (17) can press the school badge and prevent the school badge and school uniform from moving. Step 3: The school badge is sewn using the sewing machine (2). During the sewing process, the drive motor (18) rotates, causing the ball screw (14) to move the sliding plate (15), which in turn causes the press head (17) to move the school badge horizontally. At the same time, the drive motor (22) rotates the drive shaft (7), which in turn rotates the rotating support shaft (3), causing the rotating support plate (4) to move the press head (17), thereby causing the press head to move horizontally. The head (17) can drive the school badge to rotate around the rotating support shaft (3), and then drive the active pulley (20) to rotate through the rotating motor (19), so that the driven pulley (21) can drive the rotating pressure shaft (16) to rotate, thereby enabling the pressure head (17) to drive the school badge to rotate, so that the edge of the school badge can always be located directly below the sewing needle of the sewing machine (2), ensuring that the sewing machine (2) can reliably sew the school badge to the clothes, and also prevent the worker's fingers from being pricked.

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