A wire feeding mechanism for a transformer winding machine

Abstract

The present invention discloses a wire feeding mechanism of a transformer winding machine, comprising a frame, a mobile platform which slides in horizontal motion is provided on the frame, a mounting bracket is provided on the mobile platform, at least one group of rotating assemblies are respectively provided on the mobile platform and the mounting bracket, a certain distance is spaced between the two groups of rotating assemblies, at least two groups of pneumatic locking assemblies are provided on the mounting bracket, the pneumatic locking assembly is arranged on the mounting bracket through fasteners, the pneumatic locking assembly is correspondingly arranged on the rotating assembly, and at least two groups of limiting shaft disks for locking the coil skeleton are installed on the rotating assembly. The present invention realizes automatic feeding, winding and reversing functions, thereby replacing manual winding, ensuring production quality, reducing production working time, and greatly improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of winding machines, in particular to a wire feeding mechanism of a transformer winding machine. Background Art

[0002] The transformer consists of an iron core and a coil. The coil has two or more windings, of which the winding connected to the power supply is called the primary coil, and the remaining windings are called secondary coils. The coil includes a coil skeleton, on which insulated copper wire is wound. Currently, winding the copper wire onto the coil skeleton is usually performed automatically by mechanical equipment. For example, a Chinese invention patent application (application number: 201320542043.3) discloses a coil winding device, including a wire die, a tape wheel, a glue pressing device and a winding device; the glue pressing device includes a bracket and a wire arrangement mounted on the bracket. The copper tape coming out of the wire die passes through the wire discharge wheel and the tape coming out of the tape wheel is bonded to the wire discharge wheel through the wire discharge wheel through the wire pressure wheel; the winding device includes a winding bracket, a main winding shaft, a rocker arm and a slave winding shaft, the main winding shaft is installed on the bracket, and can hold the main winding wheel and the slave winding wheel, and the main winding shaft is connected to the handle; one end of the rocker arm is fixed on the main winding shaft and can rotate with the main winding shaft, and the other end is provided with a through hole for holding the slave winding wheel; the slave winding shaft is installed on the bracket for holding the slave winding wheel. The winding equipment can press the copper wire, but the copper wire is difficult to be tensioned, and during the winding process, the axial position of the copper wire relative to the coil frame remains unchanged, so the copper wire will tilt relative to the coil frame, resulting in reduced wire arrangement accuracy. Summary of the Invention

[0003] The object of the present invention is to provide a wire feeding mechanism for a transformer winding machine, which realizes automatic feeding, winding and reversing functions, thereby replacing manual winding operation, ensuring production quality, reducing production working time and greatly improving production efficiency.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A wire feeding mechanism for a transformer winding machine, comprising a frame, a movable platform that slides in horizontal motion is provided on the frame, a mounting bracket is provided on the movable platform, at least one set of rotating assemblies are respectively provided on the movable platform and the mounting bracket, the two sets of rotating assemblies are spaced a certain distance apart, at least two sets of pneumatic locking assemblies are provided on the mounting bracket, the pneumatic locking assembly is set on the mounting bracket through a fastener, the pneumatic locking assembly is correspondingly set on the rotating assembly, and at least two sets of limiting shaft disks for locking the coil skeleton are installed on the rotating assembly.

[0005] By adopting the above technical solution, the coil bobbin is installed on the rotating assembly. When the wire arrangement or winding operation is performed, the transmission equipment on the other side generates a pulling force to drive the coil bobbin on the rotating assembly to rotate. During the rotation operation, the pneumatic locking assembly is used to adjust the tightness with the rotating assembly, so as to continuously compress the copper wire and maintain the tension stability of the copper wire during operation, which can avoid the problem of wire jump. At the same time, the coil bobbin is axially slid by the mobile platform during operation, and has automatic feeding, winding and reversing functions, thereby replacing manual winding, ensuring production quality, reducing production working time, and greatly improving production efficiency.

[0006] The present invention is further configured as follows: a slide rail is provided on the frame, a U-shaped rail and a sliding foot are provided on the slide rail, the U-shaped rail protrudes toward one side of the mobile platform, the sliding foot is provided with a sliding groove adapted to the U-shaped rail, and fixed panels are provided at the four top corners of the mobile platform, and the fixed panels are locked to the sliding foot by fasteners.

[0007] By adopting the above technical solution, the sliding legs and the mobile platform are designed with a separate structure, which facilitates the later replacement of the sliding legs and the U-shaped track. At the same time, the mobile platform and the sliding legs are locked together with fasteners, and the overall structure is more stable, and the later installation and maintenance are more portable.

[0008] The present invention is further configured such that the rotating assembly includes a shaft and a plurality of bearing seats, the plurality of bearing seats are arranged in a concentric array on a mobile platform, the bearing seats are locked on the mobile platform by fasteners, and an axial hole for the shaft to rotate is provided on the bearing seats.

[0009] By adopting the above technical solution, multiple concentric array bearing seats are set up to cooperate with the rotating shaft, thereby increasing the rotation performance of the shaft, so that the shaft will not generate resistance during rotation operation. At the same time, fasteners are used to lock and fix it to the mobile platform, making the overall structure more stable and making it easier to disassemble and replace the bearing seat later.

[0010] The present invention is further configured such that the limiting shaft disk includes a first turntable and a second turntable, the first turntable and the second turntable are respectively provided with a first conical shaft sleeve and a second conical shaft sleeve, the first turntable and the second turntable are symmetrically arranged, the first turntable and the second turntable are respectively provided with a first mounting hole and a second mounting hole, and the first turntable and the second turntable are installed on the shaft rod.

[0011] By adopting the above technical solution, a limiting shaft disk is set on the shaft rod, which can cooperate with the rotation of the coil skeleton and at the same time limit the sliding of the coil skeleton to prevent the coil skeleton from deviating too much to the left and right during operation, causing excessive tension on the copper wire and leading to twisting and deformation. It has a good limiting and calibration effect on the coil skeleton.

[0012] The present invention is further configured such that a rotating sleeve rotatably matched with the coil skeleton is provided between the two groups of limiting shaft discs.

[0013] By adopting the above technical solution, a rotating sleeve is set between the two sets of limiting shaft discs to prevent the large friction between the coil skeleton and the shaft rod, which causes excessive wear of the shaft rod and reduces the service life of the shaft rod, thereby protecting the shaft rod and reducing wear.

[0014] The present invention is further configured as follows: an adjustment part is provided on the shaft rod, and the adjustment part is installed between the limit shaft disk and the bearing seat. The adjustment part includes a mounting sleeve, an adjustment panel and an adjustment rod. The mounting sleeve is installed on the shaft rod, and the adjustment panel is connected to the mounting sleeve and extends toward one side of the slide rail. An adjustment slot is provided on the adjustment panel, and the adjustment rod is provided on the adjustment slot. A first nut is provided on the adjustment rod.

[0015] By adopting the above technical solution, an adjustment part is set on the shaft, and the adjustment rod is used to adjust the distance between the shaft and the limiting shaft disk to support the pressure generated on the limiting shaft disk and prevent the shaft rod extending outside from bending due to the weight of the coil frame. The adjustment rod can be used to provide a certain support effect, and the first nut is used to lock it after the adjustment sleeve reaches a certain height. The overall structure is more solid, and adjustment and lifting are more convenient.

[0016] The present invention is further configured such that a threaded rod is machined on one side of the shaft rod, and a second nut for locking the limiting shaft disc is provided on the threaded rod.

[0017] By adopting the above technical solution, a threaded rod is machined on the shaft rod, and a second nut is installed on the threaded rod. When the two sets of limiting shaft discs clamp the coil skeleton in the middle, the second nut is tightened on the limiting shaft disc away from the bearing seat to lock and fix it to prevent the limiting shaft disc from slipping and loosening, so that the limiting shaft disc can stably clamp the coil skeleton and provide better limiting and calibration effects.

[0018] The present invention is further configured such that a brake disc is provided on the shaft rod at a side away from the limiting disc, a limiting groove is provided on the brake disc, and a limiting column is provided on the shaft rod to cooperate with the limiting groove.

[0019] By adopting the above technical solution, the limiting column set on the shaft rod and the limiting groove on the brake shaft disc are tightly fitted with each other, which has a better limiting and tightening effect, and can make the brake shaft disc stably installed on the shaft rod to prevent the brake shaft disc from loosening and falling off.

[0020] The present invention is further configured as follows: the pneumatic locking assembly includes an air pump, a fixed brake caliper and a movable brake caliper; a support panel is provided on the mounting bracket; the fixed brake caliper is provided on a side close to the support panel and is sleeved on the air pump; the movable brake caliper is provided on the other side away from the fixed brake caliper; a movable arm is provided on the movable brake caliper; a positioning through hole is provided on the movable arm for the fixed brake caliper to pass through; the movable arm is hingedly provided on the support panel; a tension spring is provided between the air pump and the movable arm.

[0021] By adopting the above technical solution, a pneumatic locking assembly is set on the brake shaft disc, and the fixed brake caliper and the movable brake caliper are controlled by an air pump. The fixed brake caliper and the brake shaft disc generate a continuous friction force, so that a certain resistance is generated when the shaft rotates to maintain the tension of the coil, thereby avoiding the problem of copper wire jumper.

[0022] The present invention is further configured such that a pressure column is provided on the air pump, and a U-shaped groove for the extension and retraction of the pressure column is provided on the movable arm.

[0023] By adopting the above technical solution, a U-shaped groove is set on the movable arm. When the groove is pressed downward by the pressure column, the movable brake caliper approaches the brake shaft disc. When the air pump pressure decreases, the pressure column resumes contraction. The tension spring connected between the air pump and the movable arm is used to make the movable brake caliper move away from the brake shaft disc to reduce resistance, making it convenient to use the air pump to control the locking tightness, better control the tension of the copper wire, and greatly improve the wiring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0025] Figure 2 It is a structural schematic diagram of the overall rotating assembly of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the overall pneumatic locking assembly and the support panel of the present invention;

[0027] Figure 4 This is a schematic structural diagram of the overall mobile platform and slide rails of the present invention;

[0028] Figure 5 It is a structural diagram of the overall mediation part of the present invention.

[0029] In the figure: 1, frame; 2, mobile platform; 3, mounting bracket; 4, rotating assembly; 5, pneumatic locking assembly; 8, limited shaft plate; 9, slide rail; 10, U-shaped track; 11, sliding foot; 12, slide groove; 13, fixed panel; 14, shaft; 15, bearing seat; 16, shaft hole; 17, first turntable; 18, second turntable; 19, first tapered bushing; 20, second tapered bushing; 21, first mounting hole; 22, second mounting hole; 23, Rotating sleeve; 24. Adjusting part; 25. Mounting sleeve; 26. Adjusting panel; 27. Adjusting rod; 28. Adjusting slot; 29. ​​Threaded rod; 30. Brake shaft disc; 31. Limiting slot; 32. Limiting column; 33. Air pump; 34. Fixed brake caliper; 35. Movable brake caliper; 36. Support panel; 37. Movable arm; 38. Positioning through hole; 39. Tension spring; 40. Pressure column; 41. U-shaped groove; 42. First nut; 43. Second nut. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example: As shown in the attached Figures 1 to 5The wire feeding mechanism of a transformer winding machine shown in the figure includes a frame 1, a mobile platform 2 that slides in horizontal motion is provided on the frame 1, a mounting bracket 3 is provided on the mobile platform 2 (fixedly installed by welding or bolt locking), and at least one group of rotating assemblies 4 are respectively provided on the mobile platform 2 and the mounting bracket 3 (specifically, one group of rotating assemblies 4 is provided on the mobile platform 2, and one group of rotating assemblies 4 is provided on the mounting bracket 3), and the two groups of rotating assemblies 4 are spaced a certain distance apart, and at least two groups of pneumatic locking assemblies 5 are provided on the mounting bracket 3 (the specific number corresponds to the number of rotating assemblies 4), the pneumatic locking assemblies 5 are provided on the mounting bracket 3 by fasteners (using bolts), and the pneumatic locking assemblies 5 are correspondingly provided on the rotating assembly 4 (with the rotating assembly 4 forms a locking fit), the rotating assembly 4 is equipped with at least two groups of limiting shaft disks 8 for locking the coil skeleton (specifically, the coil skeleton is set between the two groups of limiting shaft disks 8), the coil skeleton is installed on the rotating assembly 4, and when the wire arrangement or winding operation is performed, the transmission equipment on the other side generates tension to drive the coil skeleton on the rotating assembly 4 to rotate, and the pneumatic locking assembly 5 is used to adjust the tightness with the rotating assembly 4 during the rotation operation, so as to achieve continuous compression of the copper wire and maintain the tension stability of the copper wire during operation, which can avoid the problem of wire jumping. At the same time, the coil skeleton is axially slid by the mobile platform 2 during operation, and has automatic feeding, winding and reversing functions, thereby replacing manual winding, ensuring production quality, reducing production working time, and greatly improving production efficiency.

[0032] As attached Figure 4 As shown, the frame 1 is provided with a slide rail 9, and the slide rail 9 is provided with a U-shaped track 10 and a sliding foot 11. The U-shaped track 10 protrudes toward one side of the mobile platform 2, and the sliding foot 11 is provided with a slide groove 12 adapted to the U-shaped track 10. Fixed panels 13 (an integrated structure) are provided at the four top corners of the mobile platform 2. The fixed panel 13 is locked to the sliding foot 11 by fasteners (specifically, bolts or screws). The sliding foot 11 and the mobile platform 2 adopt a separate structural design, which is convenient for later replacement of the sliding foot 11 and the U-shaped track 10. At the same time, the mobile platform 2 and the sliding foot 11 are locked with fasteners, and the overall structure is more stable, and the later installation and maintenance are more portable.

[0033] As attached Figure 2As shown, the rotating assembly 4 includes a shaft 14 and multiple bearing seats 15 (specifically two bearing seats 15). The multiple bearing seats 15 are arranged in a concentric array on the mobile platform 2. The bearing seats 15 are locked on the mobile platform 2 by fasteners (specifically, bolts or screws are installed and fixed). An axial hole 16 for the shaft 14 to rotate is opened on the bearing seat 15. Multiple concentric array bearing seats 15 are arranged to cooperate with the rotating shaft 14 to increase the rotation performance of the shaft 14, so that the shaft 14 will not generate resistance during the rotation operation. At the same time, the shaft 14 is locked and fixed to the mobile platform 2 by fasteners. The overall structure is more stable, and it is more convenient to disassemble the bearing seat 15 for replacement later.

[0034] As attached Figure 2 As shown, the (one group of) limiting shaft disks 8 include a first turntable 17 and a second turntable 18, and the first turntable 17 and the second turntable 18 are respectively provided with a first conical shaft sleeve 19 and a second conical shaft sleeve 20 (an integrated structure), and the first turntable 17 and the second turntable 18 are symmetrically arranged (arranged to be tightly pressed against each other), and the first turntable 17 and the second turntable 18 are respectively provided with a first mounting hole 21 and a second mounting hole 22, and the first turntable 17 and the second turntable 18 are installed on the shaft rod 14, and two groups of limiting shaft disks 8 are arranged on the shaft rod 14, which can cooperate with the coil skeleton to rotate and at the same time limit the slip of the coil skeleton to prevent the coil skeleton from deviating too much to the left and right during operation, causing excessive tension on the copper wire, resulting in twisting and deformation, and having a good limiting and calibration effect on the coil skeleton.

[0035] As attached Figure 2 As shown, a rotating sleeve 23 that rotates with the coil skeleton is provided between the two sets of limiting shaft discs 8. The rotating sleeve 23 is provided between the two sets of limiting shaft discs 8 to prevent the large friction between the coil skeleton and the shaft rod 14, which causes excessive wear of the shaft rod 14 and reduces the service life of the shaft rod 14, thereby protecting the shaft rod 14 and reducing wear.

[0036] As attached Figure 5As shown, an adjustment portion 24 is provided on the shaft 14, and the adjustment portion 24 is installed between the limiting shaft disc 8 and the bearing seat 15 (installed on the side close to the movable platform). The adjustment portion 24 includes a mounting sleeve 25, an adjustment panel 26 and an adjustment rod 27. The mounting sleeve 25 is installed on the shaft 14 (with a through hole), and the adjustment panel 26 is connected to the mounting sleeve 25 (for an integrated structure) and extends toward the side of the slide rail 9. An adjustment slot 28 is provided on the adjustment panel 26, and the adjustment rod 27 is provided on the adjustment slot 28. A first nut 42 is provided on the adjustment rod 27. The adjustment portion 24 is provided on the shaft, and the adjustment rod 27 is used to adjust the distance between the shaft and the limiting shaft disc 8 to support the pressure generated on the limiting shaft disc 8 to prevent the extended shaft 14 from bending due to the weight of the coil skeleton. The adjustment rod 27 can provide a certain support effect, and the first nut 42 is used to lock the adjustment sleeve after a certain height is adjusted. The overall structure is more solid, and adjustment and lifting are more convenient.

[0037] As attached Figure 2 As shown, a threaded rod 29 (an integrated structure) is machined on one side of the shaft 14, and a second nut 43 for locking the limit shaft disc 8 is provided on the threaded rod 29. A section of threaded rod 29 is machined on the shaft 14, and the second nut 43 is installed on the threaded rod 29. When the two sets of limit shaft discs 8 clamp the coil skeleton in the middle, the second nut 43 is tightened on the limit shaft disc 8 on the side away from the bearing seat 15 to lock and fix it to prevent the limit shaft disc 8 from slipping and loosening, so that the limit shaft disc 8 can stably clamp the coil skeleton and provide better limiting and calibration effects.

[0038] As attached Figure 2 As shown, a brake disc 30 is provided on the side of the shaft 14 away from the limiting disc 8, and a limiting groove 31 is provided on the brake disc 30. A limiting column 32 (an integrated structure) that is limited and matched with the limiting groove 31 is provided on the shaft 14. The limiting column 32 provided on the shaft 14 and the limiting groove 31 on the brake disc 30 are tightly matched with each other, which has a good limiting and tightening effect, and can make the brake disc 30 stably installed on the shaft 14 to prevent the brake disc 30 from loosening and falling off.

[0039] As attached Figure 3As shown, the pneumatic locking assembly 5 includes an air pump 33, a fixed brake caliper 34 and a movable brake caliper 35 (brake pads are respectively provided on the fixed brake caliper 34 and the movable brake caliper 35). A support panel 36 is provided on the mounting bracket 3. The fixed brake caliper 34 is provided on a side close to the support panel 36 and is sleeved on the air pump 33. The movable brake caliper 35 is provided on the other side away from the fixed brake caliper 34. A movable arm 37 is provided on the movable brake caliper 35. A positioning through hole 38 is provided on the movable arm 37 for the fixed brake caliper 34 to pass through. The movable arm 37 is locked to the mounting bracket 3 by a fastener (specifically, a bolt or screw for fixing the installation). A tension spring 39 is connected between the air pump 33 and the movable arm 37 (the air pump 33 and the movable arm 37 are respectively provided with a hook for sleeve-mounting the tension spring 39). A pneumatic locking assembly 5 is provided on the brake shaft disc 30. The fixed brake caliper 34 and the movable brake caliper 35 are controlled by the air pump 33. The fixed brake caliper 34 and the brake shaft disc 30 generate a continuous friction force, so that a certain resistance is generated when the shaft rod 14 rotates to maintain the tension of the coil, thereby avoiding the problem of copper wire jump.

[0040] As attached Figure 3 As shown, a pressure column 40 is provided on the air pump 33, and a U-shaped groove 41 is provided on the movable arm 37 for the pressure column 40 to extend and retract. The U-shaped groove 41 is provided on the movable arm 37. When the pressure column 40 is used to press the groove downward, the movable brake caliper 35 approaches the brake shaft disc 30. When the pressure of the air pump 33 is reduced, the pressure column 40 resumes contraction. The tension spring 39 connected between the air pump 33 and the movable arm 37 is used to make the movable brake caliper 35 move away from the brake shaft disc 30 to reduce resistance, so that the air pump 33 can be used to control the locking tightness, better control the tension of the copper wire, and greatly improve the wiring accuracy.

Claims

1. A wire feeding mechanism for a transformer winding machine, comprising a frame (1), characterized in that: The frame (1) is provided with a movable platform (2) that slides in a horizontal motion, the movable platform (2) is provided with a mounting bracket (3), the movable platform (2) and the mounting bracket (3) are respectively provided with at least one set of rotating assemblies (4), the two sets of rotating assemblies (4) are spaced a certain distance apart, the mounting bracket (3) is provided with at least two sets of pneumatic locking assemblies (5), the pneumatic locking assemblies (5) are provided on the mounting bracket (3) through fasteners, the pneumatic locking assemblies (5) are correspondingly provided on the rotating assembly (4), and the rotating assembly (4) is provided with at least two sets of limiting shaft disks (8) for locking the coil skeleton; The frame (1) is provided with a slide rail (9), the slide rail (9) is provided with a U-shaped track (10) and a sliding foot (11), the U-shaped track (10) is protruding toward one side of the mobile platform (2), the sliding foot (11) is provided with a slide groove (12) adapted to the U-shaped track (10), and fixed panels (13) are provided at the four top corners of the mobile platform (2), and the fixed panels (13) are locked on the sliding foot (11) by fasteners; The rotating assembly (4) includes a shaft (14) and a plurality of bearing seats (15), wherein the plurality of bearing seats (15) are arranged in a concentric array on the mobile platform (2), the bearing seats (15) are locked on the mobile platform (2) by fasteners, and the bearing seats (15) are provided with an axial hole (16) for the shaft (14) to rotate; The limiting shaft disc (8) comprises a first rotating disc (17) and a second rotating disc (18), wherein the first rotating disc (17) and the second rotating disc (18) are respectively provided with a first conical shaft sleeve (19) and a second conical shaft sleeve (20), the first rotating disc (17) and the second rotating disc (18) are symmetrically arranged, the first rotating disc (17) and the second rotating disc (18) are respectively provided with a first mounting hole (21) and a second mounting hole (22), and the first rotating disc (17) and the second rotating disc (18) are installed on the shaft rod (14).

2. The wire feeding mechanism of a transformer winding machine according to claim 1, characterized in that: A rotating sleeve (23) that rotates with the coil frame is provided between the two sets of limiting shaft discs (8).

3. The wire feeding mechanism of a transformer winding machine according to claim 1, characterized in that: The shaft (14) is provided with an adjusting portion (24), and the adjusting portion (24) is installed between the limiting shaft disc (8) and the bearing seat (15). The adjusting portion (24) includes a mounting sleeve (25), an adjusting panel (26) and an adjusting rod (27). The mounting sleeve (25) is installed on the shaft (14), and the adjusting panel (26) is connected to the mounting sleeve (25) and extends toward one side of the slide rail (9). An adjusting slot (28) is provided on the adjusting panel (26), and the adjusting rod (27) is arranged on the adjusting slot (28). A first nut (42) is provided on the adjusting rod (27).

4. The wire feeding mechanism of a transformer winding machine according to claim 1, characterized in that: A threaded rod (29) is machined on one side of the shaft rod (14), and a second nut (43) for locking the limiting shaft disc (8) is provided on the threaded rod (29).

5. The wire feeding mechanism of a transformer winding machine according to claim 1, characterized in that: A brake disc (30) is provided on the side of the shaft rod (14) away from the limiting disc (8), a limiting groove (31) is provided on the brake disc (30), and a limiting column (32) is provided on the shaft rod (14) to cooperate with the limiting groove (31) in limiting manner.

6. The wire feeding mechanism of a transformer winding machine according to claim 5, characterized in that: The pneumatic locking assembly (5) includes an air pump (33), a fixed brake caliper (34) and a movable brake caliper (35); a support panel (36) is provided on the mounting bracket (3); the fixed brake caliper (34) is provided on a side close to the support panel (36) and is sleeved on the air pump (33); the movable brake caliper (35) is provided away from the fixed brake caliper (34); the movable brake caliper (35) is provided with a movable arm (37); a positioning through hole (38) for the fixed brake caliper (34) to pass through is provided on the movable arm (37); the movable arm (37) is hingedly provided on the support panel (36); a tension spring (39) is provided between the air pump (33) and the movable arm (37).

7. The wire feeding mechanism of a transformer winding machine according to claim 6, characterized in that: The air pump (33) is provided with a pressure column (40), and the movable arm (37) is provided with a U-shaped groove (41) for the pressure column (40) to be able to extend and retract.

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