A winding device for transformer production

Abstract

The present application relates to transformer manufacturing technology field, specifically to a kind of winding equipment for transformer production, it includes: winding base, the top of the both ends of winding base is respectively perpendicular to length direction and is equipped with horizontal first cross slide and second cross slide, and the top of winding base is fixed between first cross slide and second cross slide and is equipped with outgoing line bracket and take-up bracket, outgoing line bracket top is equipped with insulation monitoring device, and take-up bracket top is equipped with internal repair device;Discharge rack, discharge rack is set on first cross slide;Coil material rack, coil material rack is set on second cross slide, and coil material rack is equipped with reel, and drive reel's coil material motor, and reel outside is equipped with coil skeleton.The present application is in the winding process of coil winding and carries out real-time insulation performance monitoring to the enameled wire extracted from material roll by insulation monitoring device, so that enameled wire flaw site is completely repaired and then wound into coil skeleton, to ensure the final insulation effect of coil winding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer manufacturing, in particular to a winding equipment for transformer production. BACKGROUND

[0002] The transformer is the basic equipment for power transmission and distribution, mainly composed of primary winding, secondary winding and core. The coil winding is formed by winding the enameled wire, and the enameled wire is prone to surface peeling and damage under the influence of factors such as transportation. If such defects are not discovered in time and directly enter the winding process, it will lead to incorrect transformer operating parameters, even electric leakage and other problems, which undoubtedly causes great loss to the manufacturer, and also reduces production efficiency. SUMMARY

[0003] The present application provides a winding equipment for transformer production, which monitors the insulation performance of the enameled wire drawn from the material roll in real time through the insulation monitoring device during the winding process of the coil winding, so that the enameled wire defect part is completely repaired before being wound into the coil frame, thereby ensuring the final insulation effect of the coil winding.

[0004] In order to achieve the above purpose, the present application provides the following technical scheme: a winding equipment for transformer production, comprising: a winding base, the top of both ends of the winding base is provided with a horizontal first cross slide and a second cross slide perpendicular to the length direction, and the top of the winding base is fixed between the first cross slide and the second cross slide and provided with an outgoing line bracket and a take-up bracket, the top of the outgoing line bracket is provided with an insulation monitoring device, and the top of the take-up bracket is provided with an internal repair device; a material placing rack, the material placing rack is arranged on the first cross slide, and the material placing rack is provided with a material roll and a material placing motor for driving the material roll; a material winding rack, the material winding rack is arranged on the second cross slide, and the material winding rack is provided with a winding drum and a material winding motor for driving the winding drum, and the winding drum is externally provided with a coil frame; a controller, the first cross slide, the second cross slide, the material placing motor, the material winding motor, the insulation monitoring device and the internal repair device are respectively electrically connected with the controller.

[0005] Preferably, the insulation monitoring device comprises an ignition coil and a metal pipe horizontally arranged on the top of the outgoing line bracket; the primary of the ignition coil is electrically connected with the controller through an ignition circuit, and the secondary of the ignition coil is electrically connected between the metal pipe and the material roll.

[0006] Preferably, the internal repairing device comprises a first glue groove fixedly arranged at one end of the take-up bracket close to the unwinding rack, a first glue dipping brush is arranged inside the first glue groove, a first servo motor is arranged at the top of the first glue groove, and the first glue dipping brush is connected with the output shaft of the first servo motor through a rocker arm; an electric heating tube is horizontally arranged at one end of the first glue groove corresponding to the winding rack; and the first servo motor and the electric heating tube are electrically connected with the controller respectively.

[0007] Preferably, the winding base is provided with an external repairing support at the bottom corresponding to the winding rack, a second glue groove is arranged at the top end of the external repairing support, a second glue dipping brush is arranged inside the second glue groove, a second servo motor is arranged at the top of the second glue groove, the second glue dipping brush is connected with the output shaft of the second servo motor through a rocker arm, a hot air dryer is arranged on one side of the external repairing support close to the take-up bracket, and the air inlet of the hot air dryer faces the winding drum; and the second servo motor and the hot air dryer are electrically connected with the controller respectively.

[0008] Preferably, the output shaft of the unwinding motor is sleeved with an unwinding shaft sleeve, and a coiled spring is arranged between the output shaft of the unwinding motor and the unwinding shaft sleeve; and the material roll is fitted outside the unwinding shaft sleeve through a spline.

[0009] Preferably, the bottom of the first and second horizontal sliding tables is respectively provided with a horizontal sliding rail, and an electric cylinder is arranged parallel to the horizontal sliding rail, the first and second horizontal sliding tables are respectively connected with the winding base through corresponding electric cylinders, and each electric cylinder is electrically connected with the controller.

[0010] The application has the advantages that during the winding process of the coil winding, the insulation monitoring device monitors the insulation performance of the enameled wire drawn from the material roll in real time, and when the insulation problem of the enameled wire is monitored, the internal repairing device is started immediately by the controller to repair the enameled wire at the damaged position, and the working speed of the material discharging motor and the material winding motor is reduced, so that the enameled wire is completely repaired and then wound into the coil frame, thereby ensuring the final insulation effect of the coil winding. The insulation monitoring device adopts a corona method to detect the integrity of the outer skin of the enameled wire, wherein the metal tube and the enameled wire are respectively connected with the ignition coil, and a high potential difference exists between them. When the outer skin of the enameled wire is good, the enameled wire can normally pass through the metal tube without producing corona discharge phenomenon, and the working current of the ignition circuit remains stable. When the outer skin of the enameled wire is damaged, sparks are generated between the enameled wire and the metal tube, and the working current of the ignition circuit changes, and the controller coordinates the working of the internal repairing device, the material discharging motor and the material winding motor according to the state feedback of the ignition circuit, thereby completing the local repair of the enameled wire. The internal repairing device turns up the first dipping brush by the first servo motor and contacts the enameled wire, thereby realizing the coating of the insulation oil on the bottom of the enameled wire. The enameled wire after being coated with the insulation oil passes through the electric heating tube and is heated and dried, so that the insulation oil is solidified to form a complete insulation layer, thereby completing the repair process of the outer skin of the enameled wire. The enameled wire after being repaired is stably wound on the coil frame by the rotation of the winding drum, and the internal insulation effect is achieved. The second dipping brush cooperates with the first dipping brush. When the defect position repaired by the first dipping brush reaches the bottom of the winding drum, the second servo motor lifts the second dipping brush under the action of the controller and contacts the enameled wire at the bottom of the winding drum, so that the insulation oil is coated on the outer side of the defect position of the enameled wire, and the defect position is dried by the hot air dryer and a new insulation layer is formed on the outer side of the enameled wire. In addition, the material discharging motor and the material winding motor can be realized by the stepping motor, thereby ensuring good speed control ability. The position of the enameled wire can be detected by the encoder added to the outgoing wheel, thereby ensuring the repair position accuracy of the internal repairing device. The external repairing device can be linked with the internal repairing device to ensure the coverage range of the outer repair position of the enameled wire. The coil spring eliminates the speed difference of the enameled wire during the winding process of the coil frame and ensures the overall winding tension of the enameled wire. The replaceable winding drum can adapt to various specifications of the coil frame through the outer wall section profile. During the winding process of the enameled wire, the controller makes the first horizontal sliding table and the second horizontal sliding table slide left and right by the two electric cylinders, thereby ensuring that the drawing position of the enameled wire is always aligned with the metal tube, and the angle of the outgoing wheel is adjusted to avoid contacting the inner wall of the metal tube, thereby reducing the friction of the enameled wire and avoiding the damage of the outer skin. During the winding process of the coil frame, the winding position of the enameled wire is positioned by the winding wheel, and the left and right sliding of the winding base makes the enameled wire uniformly wound on the coil frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 This is a cross-sectional view of the outlet bracket structure of the present invention.

[0014] Figure 3 This is a structural schematic diagram of the wire take-up bracket of the present invention;

[0015] Figure 4 This is a cross-sectional view of the external repair bracket structure of the present invention.

[0016] In the figure: 1. Winding base; 2. First horizontal slide; 3. Second horizontal slide; 4. Wire delivery bracket; 5. Wire take-up bracket; 6. Unwinding platform; 7. Material reel; 8. Unwinding motor; 9. Winding platform; 10. Reel; 11. Winding motor; 12. Coil skeleton; 13. Metal pipe; 14. Wire delivery wheel; 15. First glue tank; 16. First dipping brush; 17. First servo motor; 18. Electric heating tube; 19. Winding wheel; 20. External repair bracket; 21. Second glue tank; 22. Second servo motor; 23. Second dipping brush; 24. Hot air dryer; 25. Unwinding shaft sleeve; 26. Winding spring; 27. Electric cylinder. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] according to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, a winding device for transformer production comprises a winding base 1, the top of both ends of the winding base 1 is respectively provided with a horizontal first cross slide 2 and a second cross slide 3 perpendicular to the length direction, and the top of the winding base 1 is fixedly provided with an outgoing line bracket 4 and a take-up bracket 5 between the first cross slide 2 and the second cross slide 3, the top of the outgoing line bracket 4 is provided with an insulation monitoring device, and the top of the take-up bracket 5 is provided with an internal repair device; a feeding rack 6 is arranged on the first cross slide 2, and the feeding rack 6 is provided with a material roll 7 and a feeding motor 8 driving the material roll 7; a winding rack 9 is arranged on the second cross slide 3, and the winding rack 9 is provided with a winding drum 10 and a winding motor 11 driving the winding drum 10, and the winding drum 10 is externally sleeved with a coil skeleton 12; a controller, the first cross slide 2, the second cross slide 3, the feeding motor 8, the winding motor 11, and the insulation monitoring device and the internal repair device are electrically connected with the controller respectively.

[0019] Through the above arrangement, during the winding process of the coil winding, the insulation monitoring device monitors the insulation performance of the enameled wire drawn out of the material roll 7 in real time, and when the enameled wire has insulation problems, the internal repair device is started immediately through the controller to repair the enameled wire at the damaged position, and at the same time, the working speed of the feeding motor 8 and the winding motor 11 is reduced, so that the enameled wire is wound into the coil skeleton 12 after the defective part is completely repaired, thereby ensuring the final insulation effect of the coil winding.

[0020] The insulation monitoring device comprises an ignition coil and a metal tube 13 arranged horizontally on the top of the outgoing line bracket 4; the primary of the ignition coil is electrically connected with the controller through an ignition circuit, and the secondary of the ignition coil is electrically connected between the metal tube 13 and the material roll 7.

[0021] The device adopts corona method to detect the integrity of the outer skin of the enameled wire, wherein the metal tube 13 and the enameled wire are respectively connected with the ignition coil, and there is a high potential difference between them, when the outer skin of the enameled wire is good, it can normally pass through the metal tube 13 and no corona discharge phenomenon occurs, and the working current of the ignition circuit remains stable; when the outer skin of the enameled wire is damaged, sparks occur between the enameled wire and the metal tube 13, and the working current of the ignition circuit changes, and the controller coordinates the work of the internal repair device, the feeding motor 8 and the winding motor 11 according to the state feedback of the ignition circuit, thereby completing the local repair of the enameled wire.

[0022] And the inner repair device includes a first glue tank 15 fixedly arranged at one end of the take-up bracket 5 close to the unwinding rack 6, a first glue-dipping brush 16 arranged in the first glue tank 15, a first servo motor 17 arranged at the top of the first glue tank 15, and the first glue-dipping brush 16 is connected with the output shaft of the first servo motor 17 through a rocker arm; the device further comprises an electric heating tube 18 horizontally arranged at one end of the first glue tank 15 corresponding to the winding rack 9; and the first servo motor 17 and the electric heating tube 18 are electrically connected with the controller respectively.

[0023] When the device is in a repair state, the first servo motor 17 turns up the first glue-dipping brush 16 and contacts the damaged section of the enameled wire, so as to realize the application of insulating varnish to the bottom of the enameled wire; the enameled wire after being coated with the insulating varnish is heated and dried by the electric heating tube 18, so that the insulating varnish is solidified to form a complete insulating layer, thereby completing the repair process of the enameled wire sheath; and finally the repaired enameled wire is stably wound on the coil framework 12 with the rotation of the winding drum 10, and the effect of internal insulation is achieved.

[0024] In addition, the winding base 1 is provided with an outer repair support 20 at the bottom corresponding to the winding rack 9, the outer repair support 20 is provided with a second glue tank 21 at the top end, the second glue tank 21 is provided with a second glue-dipping brush 23 inside, the second glue tank 21 is provided with a second servo motor 22 at the top, the second glue-dipping brush 23 is connected with the output shaft of the second servo motor 22 through a rocker arm, one side of the outer repair support 20 close to the take-up bracket 5 is provided with a hot air dryer 24, and the air outlet of the hot air dryer 24 faces the winding drum 10; the second servo motor 22 and the hot air dryer 24 are electrically connected with the controller respectively.

[0025] In this arrangement, the second glue-dipping brush 23 works in cooperation with the first glue-dipping brush 16; when the repaired defective position coated by the first glue-dipping brush 16 reaches the bottom of the winding drum 10, the second servo motor 22 is lifted under the action of the controller and contacts the enameled wire at the bottom of the winding drum 10, so that the insulating varnish is applied to the outside of the enameled wire at the defective position, and the hot air dryer 24 is used to dry the position and form a new insulating layer on the outside of the enameled wire.

[0026] In the above structure, the unwinding motor 8 and the winding motor 11 can be step motors, so as to ensure good speed control ability; and the length of the enameled wire can be collected through the encoder arranged on the outgoing wheel 14, so as to ensure the repair position accuracy of the inner repair device; and the outer repair device can be linked with the inner repair device to ensure the coverage range of the outer repair position of the enameled wire.

[0027] The output shaft of the feeding motor 8 is sleeved with a feeding shaft sleeve 25, and a coil spring 26 is arranged between the output shaft of the feeding motor 8 and the feeding shaft sleeve 25; the coil 7 is externally splined on the feeding shaft sleeve 25.

[0028] The coil spring 26 in the arrangement eliminates the difference in wire speed generated in the process of winding the enameled wire on the coil former 12, and ensures the overall winding tension of the enameled wire. The replaceable winding drum 10 is adapted to various specifications of the coil former 12 through the outer wall cross-sectional profile.

[0029] The bottom of the first and second horizontal sliding tables 2 and 3 is respectively provided with a horizontal sliding rail, and an electric cylinder 27 is arranged parallel to the horizontal sliding rail, the first and second horizontal sliding tables 2 and 3 are respectively connected with the winding base 1 through the corresponding electric cylinders 27, and each electric cylinder 27 is electrically connected with the controller.

[0030] Through the above structure, in the process of winding the enameled wire, the controller makes the first and second horizontal sliding tables 2 and 3 slide left and right through the two electric cylinders 27, so as to ensure that the extraction position of the enameled wire is always aligned with the metal pipe 13, and the angle adjustment of the wire outlet wheel 14 avoids the contact with the inner wall of the metal pipe 13, while also reducing the friction of the enameled wire, avoiding the damage probability of the outer skin; in the process of winding the coil former 12, the winding position of the enameled wire is positioned by the winding wheel 19, and the left and right sliding winding base 1 makes the enameled wire uniformly wound on the coil former 12.

[0031] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A winding apparatus for transformer production, characterized by, The application relates to a winding base (1), wherein the top of the winding base (1) is provided with horizontal first and second cross sliding tables (2 and 3) perpendicular to the length direction at both ends, and the top of the winding base (1) is fixedly provided with a wire outlet bracket (4) and a wire collection bracket (5) between the first and second cross sliding tables (2 and 3), the top of the wire outlet bracket (4) is provided with an insulation monitoring device, and the top of the wire collection bracket (5) is provided with an internal repairing device. A material discharging rack (6) is arranged on the first cross sliding table (2), and the material discharging rack (6) is provided with a material roll (7) and a material discharging motor (8) for driving the material roll (7). A material winding rack (9) is arranged on the second cross sliding table (3), and the material winding rack (9) is provided with a winding drum (10) and a material winding motor (11) for driving the winding drum (10), and the winding drum (10) is externally provided with a coil framework (12). A controller is electrically connected with the first and second cross sliding tables (2 and 3), the material discharging motor (8), the material winding motor (11), the insulation monitoring device and the internal repairing device. The insulation monitoring device comprises an ignition coil and a metal pipe (13) horizontally arranged on the top of the wire outlet bracket (4), the primary of the ignition coil is electrically connected with the controller through an ignition circuit, and the secondary of the ignition coil is electrically connected between the metal pipe (13) and the material roll (7). The internal repairing device comprises a first glue groove (15) fixedly arranged on the wire collection bracket (5) and close to one end of the material discharging rack (6), the first glue groove (15) is internally provided with a first glue dipping brush (16), the top of the first glue groove (15) is provided with a first servo motor (17), the first glue dipping brush (16) is connected with the output shaft of the first servo motor (17) through a rocker arm, the first glue groove (15) is horizontally provided with an electric heating pipe (18) at one end corresponding to the material winding rack (9), and the first servo motor (17) and the electric heating pipe (18) are electrically connected with the controller. The winding base (1) is provided with an external repairing support (20) at the bottom corresponding to the material winding rack (9), the external repairing support (20) is provided with a second glue groove (21) at the top end, the second glue groove (21) is internally provided with a second glue dipping brush (23), the top of the second glue groove (21) is provided with a second servo motor (22), the second glue dipping brush (23) is connected with the output shaft of the second servo motor (22) through a rocker arm, one side of the external repairing support (20) close to the wire collection bracket (5) is provided with a hot air dryer (24), the air inlet of the hot air dryer (24) faces the winding drum (10), and the second servo motor (22) and the hot air dryer (24) are electrically connected with the controller.

2. The winding apparatus for transformer manufacturing according to claim 1, characterized in that: ​ 3. The winding apparatus for transformer manufacturing as claimed in claim 1, wherein: The output shaft sleeve of the feeding motor (8) is provided with a feeding shaft sleeve (25), and a coil spring (26) is arranged between the output shaft of the feeding motor (8) and the feeding shaft sleeve (25); the material roll (7) is externally fitted on the feeding shaft sleeve (25) through a spline.

4. The winding apparatus for transformer manufacturing according to claim 1, characterized in that: The bottom of the first cross slide (2) and the second cross slide (3) is respectively provided with a cross slide rail, and an electric cylinder (27) is arranged in parallel with the cross slide rail, the first cross slide (2) and the second cross slide (3) are connected with the winding base (1) through the corresponding electric cylinder (27), and each electric cylinder (27) is electrically connected with the controller.

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