CN219832410U

CN219832410U - Wire feeding mechanism of transformer winding machine

Info

Publication number: CN219832410U
Application number: CN202320903021.9U
Authority: CN
Inventors: 胡志钢; 郑逸尘; 刘际波; 陈浩; 张扬; 赵舒雷; 牟帅; 李崇墨; 谢时勇; 王文渠
Original assignee: Zhejiang Power Transformer Co ltd
Current assignee: Zhejiang Power Transformer Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-10-13
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a wire feeding mechanism of a transformer winding machine, which comprises a frame, wherein a movable platform sliding in horizontal movement is arranged on the frame, a mounting bracket is arranged on the movable platform, at least one group of rotating assemblies are respectively arranged on the movable platform and the mounting bracket, a certain distance is reserved between the two groups of rotating assemblies, at least two groups of pneumatic locking assemblies are arranged on the mounting bracket, the pneumatic locking assemblies are arranged on the mounting bracket through fasteners, and at least two groups of limiting shafts for locking a coil framework are arranged on the rotating assemblies.

Description

Wire feeding mechanism of transformer winding machine

Technical Field

The utility model relates to the technical field of winding machines, in particular to a wire feeding mechanism of a transformer winding machine.

Background

The transformer consists of an iron core and coils, wherein the coils are provided with two or more windings, the windings connected with a power supply are called primary coils, the other windings are called secondary coils, the coils comprise coil frameworks, insulated copper wires are wound on the coil frameworks, and the winding of the copper wires on the coil frameworks is usually automatically performed by mechanical equipment at present, for example, chinese patent application (application number: 201320542043.3) discloses a winding device of the coils, and the winding device comprises a wire die, a rubber belt wheel, a rubber pressing device and a winding device; the glue pressing device comprises a bracket, and a winding displacement wheel, a glue discharge wheel, a wire pressing wheel and a wire guide wheel which are arranged on the bracket, wherein a copper belt coming out of a wire die is attached to a tape coming out of the glue guide wheel on the glue discharge wheel through the wire pressing wheel; the winding device comprises a winding bracket, a main winding shaft, a rocker arm and a secondary winding shaft, wherein the main winding shaft is arranged on the bracket and can be used for placing a main winding wheel and a secondary winding wheel, and the main winding shaft is connected with a handle; one end of the rocker arm is fixed on the main winding shaft and can rotate together with the main winding shaft, and the other end of the rocker arm is provided with a through hole for placing a secondary winding wheel; the secondary spool is mounted on the bracket for placement of the secondary reel. This winding equipment can compress tightly the copper line, but the copper line is difficult to by the tensioning, and at the winding process, the axial position of copper line relative coil skeleton is unchangeable, and consequently the copper line can appear the slope relative coil skeleton, leads to winding displacement precision to reduce.

Disclosure of Invention

The utility model aims to provide a wire feeding mechanism of a transformer winding machine, which realizes automatic feeding, winding and reversing functions, thereby replacing manual operation winding, ensuring production quality, reducing production working time and greatly improving production efficiency.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a transformer coiling machine send line mechanism, includes the frame, be provided with the mobile platform that is the horizontal movement and slide in the frame, be provided with the installing support on the mobile platform, be provided with at least a set of rotation assembly on mobile platform and the installing support respectively, the interval is a distance between the two sets of rotation assemblies, be provided with two at least pneumatic locking assemblies of group on the installing support, pneumatic locking assembly passes through the fastener setting on the installing support, pneumatic locking assembly corresponds the setting on the rotation assembly, install two sets of spacing reels that are used for locking coil skeleton on the rotation assembly.

Through adopting above-mentioned technical scheme, install coil skeleton on rotating the assembly, when carrying out winding displacement or wire winding operation, produce the pulling force by the transmission equipment of opposite side and drive the coil skeleton on rotating the assembly and rotate, adjust the compactness with rotating the assembly through pneumatic locking assembly during the operation of rotating, thereby reach and continuously compress tightly the copper line, and keep the tension stability of copper line when the operation, can avoid appearing the problem of wire jumper, carry out axial slip through moving platform during the operation of coil skeleton simultaneously, have automatic pay-off, wire winding and switching-over function, thereby replace manual operation coiling, production quality has been guaranteed, production operating time has been reduced, and production efficiency is greatly improved.

The utility model is further characterized in that the rack is provided with a sliding rail, the sliding rail is provided with a U-shaped rail and a sliding support leg, the U-shaped rail protrudes towards one side of the moving platform, the sliding support leg is provided with a sliding groove matched with the U-shaped rail, four vertex angle positions of the moving platform are provided with fixing panels, and the fixing panels are locked on the sliding support leg through fasteners.

Through adopting above-mentioned technical scheme, adopt disconnect-type structural design with slip stabilizer blade and mobile platform, make things convenient for the later stage to change slip stabilizer blade and U-shaped track, mobile platform and slip stabilizer blade adopt fastener locking cooperation simultaneously, and holistic structure is more firm, and the installation and the maintenance of later stage are more portable.

The utility model further provides that the rotating assembly comprises a shaft rod and a plurality of bearing seats, the bearing seats are concentrically arranged on the moving platform in an array manner, the bearing seats are locked on the moving platform through fasteners, and the bearing seats are provided with shaft holes for the shaft rod to rotate.

Through adopting above-mentioned technical scheme, set up a plurality of concentric array bearing frames and be used for the cooperation to rotate the axostylus axostyle, increase the rotation performance of axostylus axostyle for the axostylus axostyle can not produce the resistance when rotating the operation, utilizes fastener and moving platform locking to fix simultaneously, and holistic structure is more firm, and later stage change bearing frame dismantles more convenient.

The limiting shaft disc comprises a first rotary disc and a second rotary disc, wherein the first rotary disc and the second rotary disc are respectively provided with a first conical shaft sleeve and a second conical shaft sleeve, the first rotary disc and the second rotary disc are symmetrically arranged, the first rotary disc and the second rotary disc are respectively provided with a first mounting hole and a second mounting hole, and the first rotary disc and the second rotary disc are mounted on the shaft rod.

Through adopting above-mentioned technical scheme, set up spacing reel on the axostylus axostyle, can cooperate the coil skeleton to rotate, slide spacingly to the coil skeleton simultaneously, prevent that the coil skeleton from controlling the skew too big when the operation, cause copper line tensioning force excessive, lead to distortion, have better spacing effect and calibration effect to the coil skeleton.

The utility model is further characterized in that a rotating sleeve in rotating fit with the coil framework is arranged between the two groups of limiting shaft discs.

Through adopting above-mentioned technical scheme, set up the rotation cover between two sets of spacing reels, prevent that coil former and the frictional force of axostylus axostyle is great, lead to the axostylus axostyle excessive wear, reduce the life of axostylus axostyle, play the effect of protection and reduction wearing and tearing to the axostylus axostyle.

The utility model further provides that the shaft lever is provided with an adjusting part, the adjusting part is arranged between the limiting shaft disc and the bearing seat, the adjusting part comprises a mounting sleeve, an adjusting panel and an adjusting rod, the mounting sleeve is mounted on the shaft lever, the adjusting panel is connected with the mounting sleeve to extend towards one side of the sliding rail, the adjusting panel is provided with an adjusting groove, the adjusting rod is arranged on the adjusting groove, and the adjusting rod is provided with a first nut.

Through adopting above-mentioned technical scheme, set up regulation portion on the epaxial, utilize the regulation pole to adjust the distance between with spacing axle dish for the pressure that produces on the support spacing axle dish prevents to extend outside axostylus axostyle because the weight of coil skeleton is buckled, can utilize the regulation pole to provide certain supporting role, utilizes first nut locking after the adjustment sleeve is at a take place high, overall structure is more firm, adjusts and goes up and down more conveniently.

The utility model further provides that a threaded rod is arranged on one side of the shaft rod in a turning mode, and a second nut used for locking the limiting shaft disc is arranged on the threaded rod.

Through adopting above-mentioned technical scheme, car system one section threaded rod on the axostylus axostyle, install the second nut on the threaded rod, when the coil skeleton in the middle of two sets of spacing axial discs clamp, screw up on the spacing axial disc of keeping away from bearing frame one side through the second nut, lock fixedly, prevent the slip and the not hard up of spacing axial disc, can make the tight coil skeleton of clamp that spacing axial disc can be stable, provide better spacing effect and calibration effect.

The utility model is further characterized in that a brake shaft disc is arranged on one side, far away from the limit shaft disc, of the shaft rod, a limit groove is formed in the brake shaft disc, and a limit column in limit fit with the limit groove is formed in the shaft rod.

Through adopting above-mentioned technical scheme, utilize spacing post that sets up on the axostylus axostyle to support tight fit with spacing groove on the brake axle dish each other, have better spacing and support tight effect, can make the brake axle dish stable install on the axostylus axostyle, prevent that brake axle dish from becoming flexible and coming off.

The pneumatic locking assembly comprises an air pump, a fixed brake caliper and a movable brake caliper, wherein a support panel is arranged on the mounting bracket, the fixed brake caliper is arranged on one side close to the support panel and sleeved on the air pump, the movable brake caliper is arranged on the other side far away from the fixed brake caliper, a movable arm is arranged on the movable brake caliper, a positioning through hole for the fixed brake caliper to pass through is formed in the movable arm, the movable arm is hinged to the support panel, and a tension spring is connected between the air pump and the movable arm.

Through adopting above-mentioned technical scheme, set up pneumatic locking assembly on the brake axle dish, through fixed brake calliper and activity brake calliper of air pump control, fixed brake calliper produces continuous frictional force with the brake axle dish for certain resistance keeps the tensioning force of coil when the axostylus axostyle rotates, avoids the problem of copper line wire jumper to appear.

The utility model is further characterized in that the air pump is provided with a pressure column, and the movable arm is provided with a U-shaped groove for the pressure column to stretch and move.

Through adopting above-mentioned technical scheme, set up the U-shaped recess on the movable arm, when utilizing the pressure post to compress tightly the recess downwards, movable brake calliper is close to the brake axle dish, and the pressure post resumes the shrink when air pump pressure reduces, utilizes the extension spring that connects the setting between air pump and the movable arm for movable brake calliper is kept away from the brake axle dish and is reduced the resistance, conveniently utilizes the compactness of air pump control locking, better control copper line's rate of tension, has promoted winding displacement precision greatly.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall rotary assembly of the present utility model;

FIG. 3 is a schematic view of the structure of the integrated pneumatic locking assembly and support panel of the present utility model;

FIG. 4 is a schematic view of the structure of the whole mobile platform and the sliding rail of the present utility model;

fig. 5 is a schematic diagram of the overall adjusting part of the present utility model.

In the figure: 1. a frame; 2. a mobile platform; 3. a mounting bracket; 4. rotating the assembly; 5. a pneumatic locking assembly; 8. limiting shaft disc; 9. a slide rail; 10. a U-shaped track; 11. a sliding support leg; 12. a chute; 13. fixing the panel; 14. a shaft lever; 15. a bearing seat; 16. a shaft hole; 17. a first turntable; 18. a second turntable; 19. a first conical sleeve; 20. a second conical sleeve; 21. a first mounting hole; 22. a second mounting hole; 23. a rotating sleeve; 24. an adjusting section; 25. a mounting sleeve; 26. an adjustment panel; 27. an adjusting rod; 28. an adjustment tank; 29. a threaded rod; 30. a brake shaft disc; 31. a limit groove; 32. a limit column; 33. an air pump; 34. fixing a brake caliper; 35. a movable brake caliper; 36. a support panel; 37. an arm is moved; 38. positioning the through hole; 39. a tension spring; 40. a pressure column; 41. a U-shaped groove; 42. a first nut, 43, a second nut.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: the wire feeding mechanism of the transformer winding machine as shown in the attached drawings 1-5 comprises a frame 1, wherein a movable platform 2 sliding in horizontal movement is arranged on the frame 1, a mounting bracket 3 (fixedly mounted in a welding mode or a bolt locking mode) is arranged on the movable platform 2, at least one group of rotating assemblies 4 (specifically, one group of rotating assemblies 4 are arranged on the movable platform 2, one group of rotating assemblies 4 are arranged on the mounting bracket 3), a certain distance is reserved between the two groups of rotating assemblies 4, at least two groups of pneumatic locking assemblies 5 (the number of which is set corresponding to that of the rotating assemblies 4) are arranged on the mounting bracket 3, the pneumatic locking assemblies 5 are arranged on the mounting bracket 3 through fasteners (bolts), the pneumatic locking assembly 5 is correspondingly arranged on the rotating assembly 4 (forms locking fit with the rotating assembly 4), at least two groups of limiting shaft discs 8 (particularly, two groups of limiting shaft discs 8 are used for arranging the coil frameworks) for locking the coil frameworks are arranged on the rotating assembly 4, when wire arrangement or winding operation is carried out, the coil frameworks on the rotating assembly 4 are driven to rotate by the tension generated by transmission equipment on the other side, the tightness of the rotating assembly 4 is regulated by the pneumatic locking assembly 5 during the rotating operation, thereby achieving continuous compression of copper wires, maintaining the tension stability of the copper wires during the operation, avoiding the problem of jumper wires, simultaneously, the coil frameworks axially slide through the moving platform 2 during the operation, having the functions of automatic feeding, winding and reversing, therefore, manual operation winding is replaced, production quality is guaranteed, production working time is shortened, and production efficiency is greatly improved.

As shown in fig. 4, the rack 1 is provided with a sliding rail 9, the sliding rail 9 is provided with a U-shaped rail 10 and a sliding support 11, the U-shaped rail 10 protrudes towards one side of the moving platform 2, a sliding groove 12 matched with the U-shaped rail 10 is formed in the sliding support 11, a fixing panel 13 (as an integral structure) is arranged at four vertex angle positions of the moving platform 2, the fixing panel 13 is locked on the sliding support 11 through a fastener (specifically, a bolt or a screw is installed and fixed), the sliding support 11 and the moving platform 2 are in a separated structural design, the sliding support 11 and the U-shaped rail 10 are replaced at the later stage conveniently, meanwhile, the moving platform 2 and the sliding support 11 are in locking fit through the fastener, the integral structure is firmer, and the later stage installation and maintenance are more portable.

As shown in fig. 2, the rotation assembly 4 includes a shaft lever 14 and a plurality of bearing seats 15 (specifically, two bearing seats 15), the concentric arrays of the plurality of bearing seats 15 are arranged on the mobile platform 2, the bearing seats 15 are locked (specifically, bolts or screws are installed and fixed) on the mobile platform 2 through fasteners, shaft holes 16 for the rotation of the shaft lever 14 are formed in the bearing seats 15, the plurality of concentric arrays of the bearing seats 15 are used for matching with the rotation shaft lever 14, the rotation performance of the shaft lever 14 is improved, the resistance of the shaft lever 14 can not be generated during the rotation operation, the fastening pieces are used for locking and fixing the bearing seats with the mobile platform 2, the whole structure is more stable, and the later replacement of the bearing seats 15 is more convenient to detach.

As shown in fig. 2, the (a group of) limiting shaft disc 8 includes a first rotating disc 17 and a second rotating disc 18, a first conical shaft sleeve 19 and a second conical shaft sleeve 20 (as an integral structure) are respectively arranged on the first rotating disc 17 and the second rotating disc 18, the first rotating disc 17 and the second rotating disc 18 are symmetrically arranged (are mutually propped against each other), a first mounting hole 21 and a second mounting hole 22 are respectively formed in the first rotating disc 17 and the second rotating disc 18, the first rotating disc 17 and the second rotating disc 18 are mounted on the shaft rod 14, two groups of limiting shaft discs 8 are arranged on the shaft rod 14, and can cooperate with the rotation of the coil skeleton to slide and limit the coil skeleton, so that the coil skeleton is prevented from being excessively shifted left and right during operation, excessive copper wire tensioning force is caused, distortion is caused, and the coil skeleton has a good limiting effect and a good calibrating effect.

As shown in fig. 2, a rotating sleeve 23 in running fit with the coil skeleton is disposed between the two sets of limiting hubs 8, and the rotating sleeve 23 is disposed between the two sets of limiting hubs 8, so that excessive abrasion of the shaft lever 14 is prevented due to large friction force between the coil skeleton and the shaft lever 14, the service life of the shaft lever 14 is reduced, and the effects of protecting and reducing abrasion are achieved on the shaft lever 14.

As shown in fig. 5, the adjusting portion 24 is disposed on the shaft lever 14, the adjusting portion 24 is disposed between the limiting shaft disk 8 and the bearing seat 15 (disposed on a side close to the moving platform), the adjusting portion 24 includes a mounting sleeve 25, an adjusting panel 26 and an adjusting rod 27, the mounting sleeve 25 is disposed on the shaft lever 14 (provided with a through hole), the adjusting panel 26 is connected with the mounting sleeve 25 (as an integral structure) and extends towards one side of the sliding rail 9, an adjusting groove 28 is disposed on the adjusting panel 26, the adjusting rod 27 is disposed on the adjusting groove 28, a first nut 42 is disposed on the adjusting rod 27, the adjusting portion 24 is disposed on the shaft, the adjusting rod 27 is utilized to adjust a distance between the limiting shaft disk 8 and the limiting shaft disk 8, and is used for supporting pressure generated on the limiting shaft disk 8, preventing the shaft lever 14 extending outwards from being bent due to the weight of the coil skeleton, a certain supporting effect can be provided by the adjusting rod 27, the adjusting sleeve is locked by the first nut 42 after a certain height is adjusted, and the whole structure is more firm, and the adjusting and lifting and lowering are more convenient.

As shown in fig. 2, a threaded rod 29 (as an integral structure) is turned on one side of the shaft lever 14, a second nut 43 for locking the limiting shaft disk 8 is arranged on the threaded rod 29, a section of threaded rod 29 is turned on the shaft lever 14, the second nut 43 is arranged on the threaded rod 29, when two groups of limiting shaft disks 8 clamp the middle coil frame, the limiting shaft disk 8 far away from one side of the bearing seat 15 is screwed on through the second nut 43 for locking and fixing, sliding and loosening of the limiting shaft disk 8 are prevented, the limiting shaft disk 8 can be enabled to stably clamp the coil frame, and a good limiting effect and a good calibrating effect are provided.

As shown in fig. 2, a brake shaft disc 30 is disposed on one side of the shaft lever 14 far away from the brake shaft disc 8, a limit groove 31 is formed in the brake shaft disc 30, a limit post 32 (as an integral structure) in limit fit with the limit groove 31 is formed in the shaft lever 14, the limit post 32 formed in the shaft lever 14 is in tight fit with the limit groove 31 in the brake shaft disc 30, and the brake shaft disc 30 has good limit and tight-supporting effects, so that the brake shaft disc 30 is stably mounted on the shaft lever 14, and the brake shaft disc 30 is prevented from loosening and falling.

As shown in fig. 3, 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 disposed on the fixed brake caliper 34 and the movable brake caliper 35), a support panel 36 is disposed on the mounting bracket 3, the fixed brake caliper 34 is disposed on one side close to the support panel 36 and is sleeved on the air pump 33, the movable brake caliper 35 is disposed on the other side far away from the fixed brake caliper 34, a movable arm 37 is disposed on the movable brake caliper 35, a positioning through hole 38 for the fixed brake caliper 34 to pass through is disposed on the movable arm 37, the movable arm 37 is fixedly mounted on the mounting bracket 3 through a fastener (specifically a bolt or a screw), a tension spring 39 is disposed between the air pump 33 and the movable arm 37 (the air pump 33 and the movable arm 37 are respectively disposed with a draw hook for sleeving the tension spring 39), the pneumatic locking assembly 5 is disposed 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 continuous friction force, so that a certain resistance force is kept on the brake shaft disc 14 when rotating, and the wire jumper wire is prevented.

As shown in fig. 3, the air pump 33 is provided with a pressure column 40, the movable arm 37 is provided with a U-shaped groove 41 for the pressure column 40 to stretch and retract, the movable arm 37 is provided with the U-shaped groove 41, when the pressure column 40 is used for pressing down the groove, the movable brake caliper 35 approaches the brake shaft disc 30, the pressure column 40 recovers to shrink when the pressure of the air pump 33 is reduced, the movable brake caliper 35 is far away from the brake shaft disc 30 to reduce resistance by using a tension spring 39 connected between the air pump 33 and the movable arm 37, the tightness of locking is conveniently controlled by using the air pump 33, the tightness of copper wires is well controlled, and the wire arrangement precision is greatly improved.

Claims

1. The wire feeding mechanism of the transformer winding machine comprises a frame (1) and is characterized in that; the automatic locking device is characterized in that a moving platform (2) which slides in a horizontal movement manner is arranged on the frame (1), a mounting bracket (3) is arranged on the moving platform (2), at least one group of rotating assemblies (4) are respectively arranged on the moving platform (2) and the mounting bracket (3), a certain distance is reserved between the two groups of rotating assemblies (4), at least two groups of pneumatic locking assemblies (5) are arranged on the mounting bracket (3), the pneumatic locking assemblies (5) are arranged on the mounting bracket (3) through fasteners, the pneumatic locking assemblies (5) are correspondingly arranged on the rotating assemblies (4), and at least two groups of limiting shaft discs (8) used for locking a coil framework are arranged on the rotating assemblies (4).

2. The transformer winding machine wire feeding mechanism according to claim 1, wherein: be provided with slide rail (9) on frame (1), be provided with U-shaped track (10) and slip stabilizer blade (11) on slide rail (9), U-shaped track (10) are protruding towards moving platform (2) one side, slide groove (12) with U-shaped track (10) looks adaptation have been seted up on slip stabilizer blade (11), be provided with fixed panel (13) on four apex angle positions of moving platform (2), fixed panel (13) are through fastener locking on slip stabilizer blade (11).

3. The transformer winding machine wire feeding mechanism according to claim 1, wherein: the rotating assembly (4) comprises a shaft rod (14) and a plurality of bearing seats (15), the bearing seats (15) are concentrically arranged on the moving platform (2), the bearing seats (15) are locked on the moving platform (2) through fasteners, and shaft holes (16) for the shaft rod (14) to rotate are formed in the bearing seats (15).

4. The transformer winding machine wire feeding mechanism according to claim 1, wherein: the limiting shaft disc (8) comprises a first rotary disc (17) and a second rotary disc (18), a first conical shaft sleeve (19) and a second conical shaft sleeve (20) are respectively arranged on the first rotary disc (17) and the second rotary disc (18), the first rotary disc (17) and the second rotary disc (18) are symmetrically arranged, a first mounting hole (21) and a second mounting hole (22) are respectively formed in the first rotary disc (17) and the second rotary disc (18), and the first rotary disc (17) and the second rotary disc (18) are mounted on the shaft rod (14).

5. The transformer winding machine wire feeding mechanism according to claim 1, wherein: a rotating sleeve (23) which is in rotating fit with the coil framework is arranged between the two groups of limiting shaft discs (8).

6. The transformer winding machine wire feeding mechanism according to claim 2, wherein: be provided with regulation portion (24) on axostylus axostyle (14), regulation portion (24) installation sets up between spacing reel (8) and bearing frame (15), regulation portion (24) are including installation cover (25), regulation panel (26) and regulation pole (27), installation cover (25) are installed on axostylus axostyle (14), installation cover (25) are connected to regulation panel (26) and are extended towards slide rail (9) one side, regulation groove (28) have been seted up on regulation panel (26), regulation pole (27) set up on regulation groove (28), be provided with first nut (42) on regulation pole (27).

7. The transformer winding machine wire feeding mechanism according to claim 2, wherein: one side of the shaft lever (14) is provided with a threaded rod (29), and the threaded rod (29) is provided with a second nut (43) for locking the limiting shaft disk (8).

8. The transformer winding machine wire feeding mechanism according to claim 2, wherein: one side of the shaft lever (14) far away from the limiting shaft disc (8) is provided with a brake shaft disc (30), the brake shaft disc (30) is provided with a limiting groove (31), and the shaft lever (14) is provided with a limiting post (32) in limiting fit with the limiting groove (31).

9. The transformer winding machine wire feeding mechanism according to claim 1, wherein: the pneumatic locking assembly (5) comprises an air pump (33), a fixed brake caliper (34) and a movable brake caliper (35), wherein a support panel (36) is arranged on the mounting bracket (3), the fixed brake caliper (34) is arranged on one side close to the support panel (36) and sleeved on the air pump (33), the movable brake caliper (35) is arranged on the side far 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 formed in the movable arm (37), the movable arm (37) is hinged to the support panel (36), and a tension spring (39) is connected between the air pump (33) and the movable arm (37).

10. The transformer winding machine wire feeding mechanism according to claim 9, wherein: 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 stretch and move.