CN111768970B - Transformer coil winding device - Google Patents
Transformer coil winding device Download PDFInfo
- Publication number
- CN111768970B CN111768970B CN202010697208.9A CN202010697208A CN111768970B CN 111768970 B CN111768970 B CN 111768970B CN 202010697208 A CN202010697208 A CN 202010697208A CN 111768970 B CN111768970 B CN 111768970B
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- Prior art keywords
- coil
- supporting
- winding
- hole
- damping
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- 238000004804 winding Methods 0.000 title claims abstract description 49
- 238000013016 damping Methods 0.000 claims abstract description 52
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/082—Devices for guiding or positioning the winding material on the former
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/096—Dispensing or feeding devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/098—Mandrels; Formers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Of Transformers For General Uses (AREA)
- Coil Winding Methods And Apparatuses (AREA)
Abstract
A winding device for a transformer coil belongs to the field of transformer production and comprises a bracket, a coil, a supporting part and a winding part, wherein the coil is installed on the bracket and reciprocates, the winding part is installed on the supporting part, and the winding part winds the coil by a lead. The bracket comprises a supporting frame and cushion blocks, a pair of cushion blocks are arranged on the inner sides of two ends of the supporting frame, and the coil is placed on the cushion blocks. The supporting part comprises a supporting plate, a supporting roller, a driving roller, a motor and a belt, and the supporting plate is vertically installed. The backup pad middle part has the through-hole and is used for passing the end plate of coil and the end plate of coil, and the backing roll is rotatable to be installed in the backup pad, and the backing roll has four, and the equipartition is in the backup pad. The driving rollers are provided with a pair of driving rollers, and the driving rollers are tangentially installed with the rotating frame. One of the drive rollers is connected to a motor. The winding part comprises a rotating frame, a coil, a wire, a damping device and a guide frame, wherein the rotating frame is installed on the supporting roller and driven by the driving roller.
Description
Technical Field
The invention belongs to the technical field of transformer production, and particularly relates to a transformer coil winding device.
Background
The winding work of the transformer coil is an important link of the production of the transformer coil and also an important link of the production of the transformer, and currently, special devices for winding the transformer coil are various, but the special devices have very large volumes, need special wire supply devices and winding devices, have very large respective occupied space and cause obvious waste to resources. The invention provides a coil winding device with a compact structure.
Disclosure of Invention
The invention provides a transformer coil winding device to solve the problems in the background art.
The technical problem solved by the invention is realized by adopting the following technical scheme:
a transformer coil winding device comprises a bracket, a coil, a supporting part and a winding part, wherein the coil is installed on the bracket, the driving coil performs reciprocating motion, the winding part is installed on the supporting part, and the winding part winds the coil by conducting wires. The bracket comprises a supporting frame and cushion blocks, the supporting frame is a hollow frame, a pair of cushion blocks are arranged on the inner sides of two ends of the supporting frame, the shape of each cushion block is consistent with that of an end plate of each coil, and each coil is placed on each cushion block. The coil comprises end plates and an axle center, the end plates are provided with a pair of end plates, the end plates are placed on the cushion blocks, the axle center is connected between the pair of end plates, and a lead is wound on the axle center to complete the winding of the coil.
The supporting part comprises a supporting plate, a supporting roller, a driving roller, a motor and a belt, and the supporting plate is vertically installed. The middle part of the supporting plate is provided with a through hole for penetrating through the end plate of the coil and the end plate of the coil, necessary mounting holes are formed in the supporting plate for mounting a supporting roller and a driving roller, the supporting roller is rotatably mounted on the supporting plate, the number of the supporting rollers is four, the supporting rollers are uniformly distributed on the supporting plate, and the four supporting rollers uniformly support the rotating frame. The drive roller has a pair ofly, and the drive roller avoids the backing roll to install in the backup pad, and the tangent installation of drive roller and rotatory frame, the rotation of drive roller drive rotatory frame. A pair of drive rollers uses the belt to connect, realizes synchronous rotation, and rotatory frame of drive that can be more stable rotates. One of the drive rollers is connected to a motor.
The winding part comprises a rotating frame, a coil, a wire, a damping device and a guide frame, wherein the rotating frame is installed on the supporting roller and driven by the driving roller. The rotary frame is provided with a coil hole, a damping hole is arranged on the side of the coil hole, a coil is arranged on the coil hole, a damping device is arranged on the damping hole, and the damping device applies damping to the coil and has certain tension force for winding a wire on the coil.
Further, the shape of the spacer is consistent with the shape of the end plate of the coil.
Further, if the stable placement of the coil is considered, necessary fixing clamps can be added on the cushion block.
Further, the driving roller and the rotating frame can be driven by friction or by gear engagement.
Further, the number of the wire coil holes is 2-4.
Furthermore, a guide frame is installed on the rotating frame, a guide hole is formed in the front end of the guide frame, the guide hole is located in the middle of the lower portion of the coil, and a lead penetrates through the guide hole of the guide frame from the coil and is wound on the axis of the coil.
Further, damping device includes an external screw thread section of thick bamboo, hexagonal head, an internal thread section of thick bamboo, presses nail, spring, end cap and interior hexagonal groove, and an external screw thread section of thick bamboo passes through the screw thread and installs on the damping hole, and an external screw thread section of thick bamboo rear end has a hexagonal head, and the inside internal thread section of thick bamboo that has of damping device installs the end cap on the internal thread section of thick bamboo, and damping device internally mounted presses the nail, presses and installs the spring between nail and the end cap.
Further, the hexagonal head has a cylinder at the rear thereof for compensating for a necessary length of the damping device.
Furthermore, in order to adjust the damping conveniently, the outer end of the plug is provided with an inner hexagonal groove, so that the damping of the damping device can be adjusted conveniently by using tools.
The invention has the beneficial effects that:
the adjustable damping device is used for winding the transformer coil, has a compact structure and small occupied area, can be suitable for winding a plurality of strands of coils, and can ensure the required proper compactness of the coils by the adjustable damping device.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a rear schematic view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is an exploded view of the present invention;
FIG. 5 is an exploded view of the damping device of the present invention;
in the figure: 10. the coil winding device comprises a bracket, 11, a support frame, 12, a cushion block, 20, a coil, 21, an end plate, 22, an axis, 30, a support part, 31, a support plate, 32, a support rod, 33, a driving roller, 34, a motor, 35, a belt, 40, a winding part, 41, a rotating frame, 411, a coil hole, 412, a damping hole, 42, a coil, 43, a lead, 44, a damping device, 441, an external thread cylinder, 442, a hexagonal head, 443, an internal thread cylinder, 444, a pressing nail, 445, a spring, 446, a plug, 447, an internal hexagonal groove and 45 a guide frame.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1 to 5, the winding apparatus for a transformer coil includes a bracket 10, a coil 20, a support 30 and a winding portion 40, wherein the coil 20 is mounted on the bracket 10, the driving coil 20 reciprocates, the winding portion 40 is mounted on the support 30, and the winding portion 40 winds the coil 20 with a wire.
The bracket 10 includes a support frame 11 and a spacer 12, the support frame 11 is a hollow frame, the inner sides of both ends of the support frame 11 are provided with a pair of spacers 12, the shape of the spacers 12 is consistent with the shape of the end plate 21 of the coil 20, and the coil 20 is placed on the spacers 12. of course, if considering the stable placement of the coil 20, necessary fixing clamps can be added on the spacers 12, and such clamps can be easily implemented by those skilled in the art.
The coil 20 comprises an end plate 21 and a shaft core 22, wherein the end plate 21 is provided with a pair, the end plate 21 is placed on the cushion block 12, the shaft core 22 is connected between the pair of end plates, and a lead 43 is wound on the shaft core 22 to complete the winding of the coil 20.
The support part 30 includes a support plate 31, a support roller 32, a drive roller 33, a motor 34 and a belt 35, the support plate 31 is vertically installed, and of course, the support plate 31 needs to be fixed in a manner that is easy for those skilled in the art. The supporting plate 31 has a through hole in the middle for passing through the end plate 21 of the coil 20 and the end plate 21 of the coil 20, the supporting plate 31 further has necessary mounting holes for mounting the supporting rollers 32 and the driving roller 33, the supporting rollers 32 are rotatably mounted on the supporting plate 31, the supporting rollers 32 have four and are uniformly distributed on the supporting plate 31, and the four supporting rollers 32 uniformly support the rotating frame 41 to ensure the stable rotation of the rotating frame 41. The driving rollers 33 are provided in a pair, the driving rollers 33 are mounted on the support plate 31 while avoiding the supporting rollers 32, the driving rollers 33 are mounted in contact with the rotating frame 41, and the rotating of the driving rollers 33 rotates the rotating frame 41, but of course, the driving rollers 33 and the rotating frame 41 may be driven by friction or by gear engagement. The pair of driving rollers 33 are connected by the belt 35 to rotate synchronously, so that the rotating frame 41 can be driven to rotate more stably. One of the driving rollers 33 is connected to a motor 34, and the motor 34 is installed at the rear side of the rotating frame 41 so as not to interfere with installation. The motor 34 drives the driving roller 33 to rotate, and further drives the rotating frame 41 to rotate.
The winding section 40 includes a rotary frame 41, a coil 42, a wire 43, a damper 44, and a guide frame 45, and the rotary frame 41 is mounted on the support roller 32 and driven by the drive roller 33. The rotating frame 41 is provided with coil holes 411, the number of the coil holes 411 is 2-4, a damping hole 412 is arranged on the side of each coil hole 411, a coil 42 is installed on each coil hole 411, a damping device 44 is installed on each damping hole 412, and the damping device 44 applies damping to the coil 42 and has certain tension force for winding the lead 43 on the coil 20. The rotating frame 41 is provided with a guide frame 45, the front end of the guide frame 45 is provided with a guide hole, the position of the guide hole is positioned in the lower middle part of the coil 42, the conducting wire 43 passes through the guide hole of the guide frame 45 from the coil 42 and is wound on the axis 22 of the coil 20, and no matter the conducting wire 43 is led out from the side part or the middle part of the coil 42, the conducting wire 43 is repositioned through the guide frame 45, so that the positioning of the conducting wire 43 on the axis 22 is facilitated, and the moving speed of the bracket 10 is controlled to ensure the winding tightness of the conducting wire.
The damping device 44 includes an externally threaded cylinder 441, a hexagonal head 442, an internally threaded cylinder 443, a pressing pin 444, a spring 445, a plug 446, and an internally hexagonal groove 447, the externally threaded cylinder 441 is threadedly mounted on the damping hole 412, the hexagonal head 442 is provided at the rear end of the externally threaded cylinder 441, the hexagonal head 442 facilitates mounting of the damping device 44 on the damping hole 412, and a cylinder body for compensating for a necessary length of the damping device 44 is further provided at the rear end of the hexagonal head 442. The damping device 44 is internally provided with an internal thread cylinder 443, the internal thread cylinder 443 is provided with a plug 446, the damping device 44 is internally provided with a pressing nail 444, a spring 445 is arranged between the pressing nail 444 and the plug 446, the pressing nail 444 is always pressed forwards under the action of the spring 445, the pressing nail 444 is pressed on the end face of the wire coil 42, damping is applied to the wire coil 42 through friction force, and the tension force of the lead 43 is kept. The amount of damping applied by the damping device 44 to the coil 42 is adjusted by adjusting the compression force of the spring 445 through the plug 446. In order to adjust the damping conveniently, the outer end of the plug 446 is provided with an inner hexagonal groove 447, so that the damping of the damping device 44 can be adjusted conveniently by using a tool.
The working principle of the invention is as follows: the number of the wire coils 42 is installed according to the winding requirement of the coil 20, the starting point of the conducting wire 43 is fixed on the end plate 21 of the coil 20 as required, the motor 34 is started, the rotating frame 41 is driven to rotate in the required direction, and meanwhile, the bracket 10 is controlled to reciprocate at the proper speed, so that the conducting wire 43 is wound on the shaft center 22 until the winding is finished. Of course, the advantage of the concentrated components and small size of the device also limits the difficulty in winding coils with large diameters and large wire volumes.
The above embodiments mainly describe the winding apparatus of the transformer coil of the present invention. While only a limited number of embodiments and features have been described, those skilled in the art will recognize that the invention can be embodied in many other forms without departing from the spirit or scope thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and various modifications and alternative arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (8)
1. The utility model provides a transformer coil coiling device, including bracket (10), coil (20), supporting part (30) and winding part (40), a serial communication port, install coil (20) on bracket (10), reciprocating motion is made in drive coil (20), install winding part (40) on supporting part (30), winding part (40) carry out the wire winding to coil (20), bracket (10) are including carriage (11) and cushion (12), carriage (11) are hollow frame, carriage (11) both ends inboard has a pair of cushion (12), on cushion (12) that coil (20) were placed, coil (20) are including end plate (21) and axle center (22), end plate (21) have a pair ofly, end plate (21) are placed on cushion (12), connect axle center (22) between a pair of end plate, supporting part (30) are including backup pad (31), backing roll (32), The coil winding device comprises driving rollers (33), motors (34) and belts (35), a supporting plate (31) is vertically and fixedly installed, a through hole is formed in the middle of the supporting plate (31) and used for penetrating through an end plate (21) of a coil (20) and an axis (22) of the coil (20), the supporting rollers (32) are rotatably installed on the supporting plate (31), the number of the supporting rollers (32) is four, the supporting rollers are uniformly distributed on the supporting plate (31), the driving rollers (33) are provided with a pair of driving rollers (33), the driving rollers (33) are installed on the supporting plate (31) in a mode of avoiding the supporting rollers (32), the driving rollers (33) are installed in a tangent mode with a rotating frame (41), the rotating frame (41) is driven to rotate by rotation of the driving rollers (33), the pair of driving rollers (33) are connected through the belts (35), one of the driving rollers (33) is connected with the motors (34), a winding portion (40) comprises the rotating frame (41), a coil (42), a lead (43) and a damping device (44), the rotary frame (41) is installed on the supporting roller (32), a coil hole (411) is formed in the rotary frame (41), a damping hole (412) is formed in the side of the coil hole (411), a coil (42) is installed on the coil hole (411), a damping device (44) is installed on the damping hole (412), the damping device (44) applies damping to the coil (42), the damping device (44) comprises an external thread cylinder (441), a hexagonal head (442), an internal thread cylinder (443), a pressing nail (444), a spring (445) and a plug (446), the external thread cylinder (441) is installed on the damping hole (412) through threads, the hexagonal head (442) is arranged at the rear end of the external thread cylinder (441), the damping device (44) is convenient to install the damping hole (412), the internal thread cylinder (443) is arranged inside the damping device (44), the plug (446) is installed on the internal thread cylinder (443), and the pressing nail (444) is installed inside the damping device (44), a spring (445) is arranged between the pressing nail (444) and the plug (446).
2. A transformer coil winding arrangement according to claim 1, characterized in that the shape of the spacers (12) corresponds to the shape of the end plates (21) of the coil (20).
3. A transformer coil winding arrangement according to claim 1, characterized in that the spacers (12) are provided with clamps for fixing the coil (20).
4. A transformer coil winding arrangement according to claim 1, characterized in that the drive roller (33) is driven by friction or by gear engagement with the rotating frame (41).
5. The winding device of the transformer coil as claimed in claim 1, wherein the number of the coil holes (411) is 2-4, and each coil hole (411) has a damping hole (412) at its side.
6. The winding apparatus of transformer coil according to claim 1, wherein the rotating frame (41) is provided with a guide frame (45), the front end of the guide frame (45) is provided with a guide hole, the guide hole is located at the lower middle part of the coil (42), and the conducting wire (43) passes through the guide hole of the guide frame (45) from the coil (42) and is wound on the axis (22) of the coil (20).
7. A transformer coil winding arrangement according to claim 1, characterized in that the hexagonal head (442) is further provided with a cylindrical body at the rear, which is adapted to compensate for the necessary length of the damping means (44).
8. A transformer coil winding device according to claim 1, characterized in that the outer end of the plug (446) is provided with an inner hexagonal groove (447).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010697208.9A CN111768970B (en) | 2020-07-20 | 2020-07-20 | Transformer coil winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010697208.9A CN111768970B (en) | 2020-07-20 | 2020-07-20 | Transformer coil winding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111768970A CN111768970A (en) | 2020-10-13 |
| CN111768970B true CN111768970B (en) | 2021-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010697208.9A Active CN111768970B (en) | 2020-07-20 | 2020-07-20 | Transformer coil winding device |
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|---|---|---|---|---|
| CN113023465B (en) * | 2021-03-01 | 2023-02-17 | 浙江理工大学 | A winding device for three-way thermoplastic |
| CN113690046B (en) * | 2021-07-13 | 2024-10-22 | 天长市泽丰电子有限公司 | A bobbin damping generating device for a coil winding machine for high frequency transformer production |
| CN115995343B (en) * | 2023-02-22 | 2025-08-19 | 江西赣电电气有限公司 | Transformer coil coiling damping device |
| CN117886164A (en) * | 2024-01-31 | 2024-04-16 | 福建省华达智纺集团有限公司 | A yarn guiding device for textile production |
| CN119742177B (en) * | 2025-03-05 | 2025-05-13 | 苏州市亚弘电子科技有限公司 | Inductance coil winding control method and winding device |
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| US6382950B1 (en) * | 2000-09-27 | 2002-05-07 | Gateway Bookbinding Systems, Inc. | Coil winding machine |
| CN108597859A (en) * | 2018-05-24 | 2018-09-28 | 宜昌楚能变压器有限公司 | The automation equipment and application method of for transformer magnetic core coiling |
| CN208014547U (en) * | 2018-03-28 | 2018-10-26 | 国网山东省电力公司高密市供电公司 | An electromagnetic coil winding device |
| CN209029242U (en) * | 2018-10-15 | 2019-06-25 | 江苏北辰互邦电力股份有限公司 | A kind of automatic winder for electric transformer coil of two-way coiling |
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| CN209843502U (en) * | 2019-06-06 | 2019-12-24 | 无锡富乐电子有限公司 | Enameled wire winding tension control device |
| CN210039911U (en) * | 2019-07-02 | 2020-02-07 | 江苏燎源变压器有限公司 | Foil type winding machine for winding transformer coil |
| CN210743786U (en) * | 2019-10-10 | 2020-06-12 | 凤冠电机（昆山）有限公司 | Coil winding device for transformer manufacturing |
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2020
- 2020-07-20 CN CN202010697208.9A patent/CN111768970B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382950B1 (en) * | 2000-09-27 | 2002-05-07 | Gateway Bookbinding Systems, Inc. | Coil winding machine |
| CN208014547U (en) * | 2018-03-28 | 2018-10-26 | 国网山东省电力公司高密市供电公司 | An electromagnetic coil winding device |
| CN108597859A (en) * | 2018-05-24 | 2018-09-28 | 宜昌楚能变压器有限公司 | The automation equipment and application method of for transformer magnetic core coiling |
| CN209029242U (en) * | 2018-10-15 | 2019-06-25 | 江苏北辰互邦电力股份有限公司 | A kind of automatic winder for electric transformer coil of two-way coiling |
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| CN209843502U (en) * | 2019-06-06 | 2019-12-24 | 无锡富乐电子有限公司 | Enameled wire winding tension control device |
| CN210039911U (en) * | 2019-07-02 | 2020-02-07 | 江苏燎源变压器有限公司 | Foil type winding machine for winding transformer coil |
| CN210743786U (en) * | 2019-10-10 | 2020-06-12 | 凤冠电机（昆山）有限公司 | Coil winding device for transformer manufacturing |
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| CN111768970A (en) | 2020-10-13 |
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