A special equipment for winding multi-rhombic coil into hollow cup motor coil

Abstract

The application discloses a kind of special equipment of hollow cup motor coil of multiple rhombic coil winding round synthesis, including coil placement platform module and the upper disc module of ring being arranged on the upper portion of coil placement platform module;Coil placement platform module includes: rotatable central cylinder and telescopic positioning column, telescopic positioning column is slidably connected along the radial direction of rotatable central cylinder with rotatable central cylinder;Upper disc module includes synchronous pressing column device and synchronous pressing coil device, synchronous pressing column device includes telescopic pressing column unit, and synchronous pressing coil device includes telescopic pressing coil unit, telescopic pressing column unit is n group, and n group telescopic pressing column unit is evenly arranged around the outside of rotatable central cylinder.Set compared with prior art, the application is the integrated equipment that can realize coil stacking and winding round process.With rotatable central cylinder as core, each module realizes the automation process of coil winding round.

Description

Technical Field

[0001] This invention belongs to the field of hollow cup motor coil rolling technology, and particularly relates to a special equipment for rolling multi-diamond coils to synthesize hollow cup motor coils. Background Technology

[0002] The coil of a coreless motor is the core component of the motor, and the quality of its manufacturing process directly affects the overall performance of the motor.

[0003] Coreless motor coils involve various manufacturing processes. One method, which involves stacking and rolling multiple sheet-like rhomboid coils, effectively increases the number of turns and inductance, optimizes the magnetic circuit structure, and improves the motor's output power and torque density. Simultaneously, this method helps improve the coil's heat dissipation, reducing performance degradation caused by heat and meeting the demands of high-end applications for long-term stable motor operation. Therefore, achieving the stacking and rolling of multiple sheet-like rhomboid coils in a coreless motor has become a key technological direction for improving motor performance.

[0004] like Figure 1 As shown, in the prior art, the equipment for "stacking and rolling multiple hollow cup motor sheet-shaped rhomboid coils" includes: a stacking fixture 01, a coarse rolling device 02, and a fine rolling device 03. The stacking fixture 01 includes a flat support plate 015 and positioning posts fixed sequentially on the support plate 015 and perpendicular to it. The distance between adjacent positioning posts is equal. The positioning posts ensure the stacking accuracy of the multiple sheet-shaped rhomboid coils. In specific implementation, the distance between the positioning posts is set according to the specifications and shape of the sheet-shaped rhomboid coils. The coarse rolling device 02 includes a material conveyor belt and a rolling cylinder 021 located above the material conveyor belt. The fine rolling device 03 includes a rolling mold.

[0005] The process of achieving "multiple hollow cup motor sheet-shaped rhomboid coils stacked and then rolled into a circle" includes: stacking sheet-shaped coils, coarse rolling, and fine rolling. The stacking process of multiple sheet-shaped rhomboid coils is as follows: The left and right sides of the first sheet-shaped rhomboid coil 04 are manually pulled apart, and then placed on the first positioning post 011 and the third positioning post 013. After releasing the hand, the first sheet-shaped rhomboid coil 04 retracts on both sides under the action of elastic force, with its inner sides exactly abutting against the first positioning post 011 and the third positioning post 013, thus completing the placement of the first sheet-shaped rhomboid coil 04. Next, the left and right sides of the second sheet-shaped rhomboid coil 05 are manually pulled apart, and then placed on the second positioning post 012 and the fourth positioning post 014. After releasing the hand, the second sheet-shaped rhomboid coil 05 retracts on both sides under the action of elastic force, with its inner sides exactly abutting against the second positioning post 012 and the fourth positioning post 014, thus completing the placement of the second sheet-shaped rhomboid coil 05. The above steps are repeated to complete the stacking of all sheet-shaped rhomboid coils. Adhesive or hot-pressing methods can be used to fix the stacked sheet-shaped rhomboid coils into a single sheet-shaped stacked coil body 06. The rough winding process is as follows: using the rough winding equipment 02, the sheet-like stacked coil body 06, which forms a whole, is wound into an open-ended circular stacked coil body 07. Specifically, the sheet-like stacked coil body 06 is manually guided into the winding cylinder 021, and under the winding pressure of the winding cylinder 021, rough winding is achieved. The fine winding process is as follows: using the fine winding equipment 03, the open-ended circular stacked coil body 07 is wound into a closed, complete circle, resulting in the hollow cup motor coil 08.

[0006] The shortcomings of existing technologies include: First, the method of manually pulling apart the sheet-like diamond coils and placing them on the positioning posts is time-consuming, labor-intensive, and requires significant effort due to the inherent rigidity of the coils. Second, the rough rolling process cannot produce a complete circle, necessitating the use of precision rolling equipment to complete the entire rolling process. Furthermore, the manual feeding of the stacked sheet-like coils into the rolling cylinder during rough rolling cannot guarantee the accuracy of the feeding direction. If the stacked sheet-like coils are fed at an angle, the resulting rough rolled coil will inevitably be spiral-shaped, severely affecting the quality of the finished product. Third, a large number of precision rolling machines are required to complete the rolling process.

[0007] Therefore, it is necessary to provide a new special equipment for rolling multi-diamond coils to synthesize hollow cup motor coils to solve the above-mentioned technical problems. Summary of the Invention

[0008] (I) Technical problem to be solved: Based on this, the present invention provides a special equipment for rolling multi-diamond coils to synthesize hollow cup motor coils, which aims to solve the technical problems of existing sheet-shaped diamond coil rolling equipment, which are time-consuming and labor-intensive to operate manually, have high labor intensity, cannot form a complete circle with coarse rolling, and have poor feeding direction accuracy which affects the quality of finished products, and require additional fine rolling equipment, resulting in a large number of equipment.

[0009] (II) Technical Solution: To solve the above-mentioned technical problems, the present invention proposes a special device for forming hollow cup motor coils by rolling multi-rhomboid coils, including a coil placement platform module and an upper plate module surrounding the upper part of the coil placement platform module; the coil placement platform module includes: a rotatable central cylinder and n retractable positioning columns uniformly arranged around the rotatable central cylinder, n≥3 and n is a natural number, the retractable positioning columns are slidably connected to the rotatable central cylinder along the radial direction of the rotatable central cylinder; the upper plate module includes a synchronous pressing column device and a synchronous pressing coil device, the synchronous pressing column device includes a retractable pressing column unit, the synchronous pressing coil device includes a retractable pressing coil unit, the retractable pressing column unit is in n groups, and the n groups of retractable pressing column units are uniformly arranged around the outside of the rotatable central cylinder; the special device for forming hollow cup motor coils by rolling multi-rhomboid coils includes a column-column aligned state, when the special device for forming hollow cup motor coils by rolling multi-rhomboid coils is in the column-column aligned state, each group of retractable pressing column units is positioned opposite one of the retractable positioning columns.

[0010] (III) Beneficial Effects: Compared with existing technologies, this invention is an integrated device capable of realizing coil stacking and rolling processes. This invention creatively transforms the traditional planar coil stacking fixture into a cylindrical, rotatable central cylinder. The outer side of the rotatable central cylinder has protruding, retractable positioning posts, providing conditions for stacking multiple sheet-like rhomboid coils along a circular path. Using this invention, the manual action of pulling apart the sheet-like rhomboid coils and placing them on the retractable positioning posts can be replaced, freeing up manpower and achieving a high degree of automation. Furthermore, the rolling scheme implemented using this invention avoids the traditional method of guiding the stacked sheet-like coils into the rolling cylinder for coarse rolling. Instead, the two ends of the sheet-like rhomboid coils are hung on two retractable positioning posts, which provide precise positioning and ensure the accuracy of the rolled coils. The retractable pressure post unit can also retract the retractable positioning posts into the rotatable central cylinder without affecting the axial release of the rolled coils along the rotatable central cylinder, facilitating unloading. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the equipment and process for realizing "stacked and rolled sheet-shaped rhomboid coils" in the background art of this invention;

[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0014] Figure 3 This is a three-dimensional schematic diagram of the upper plate module in this invention;

[0015] Figure 4 This is a front view schematic diagram of the upper plate module in this invention;

[0016] Figure 5 This is a three-dimensional schematic diagram of the synchronous pressure column device in this invention;

[0017] Figure 6 This is a partial structural schematic diagram of the synchronous pressure column device in this invention;

[0018] Figure 7 This is a partial structural schematic diagram of the synchronous coil device in this invention;

[0019] Figure 8 for Figure 7 A cross-sectional view;

[0020] Figure 9 This is a three-dimensional schematic diagram of the coil placement platform module in this invention;

[0021] Figure 10 This is a cross-sectional schematic diagram of a portion of the structure in the coil placement platform module of this invention;

[0022] Figure 11 This is a three-dimensional schematic diagram of the lateral telescopic power unit in this invention;

[0023] Figure 12 This is a comparison diagram of the two states of the movable lifting plate in this invention (from left to right: rising state and falling state).

[0024] Figure 13 This is a comparison diagram of three states of the coil placement platform in this invention (from left to right: positioning state, transition state, and unloading state).

[0025] Figure 14 This is a three-dimensional schematic diagram of the arc-shaped, sheet-like rhomboid coil in this invention;

[0026] Figure 15 This is a top view schematic diagram of the arc-shaped, sheet-like rhomboid coil in this invention;

[0027] Figure 16 This is a schematic diagram illustrating the second step of rolling the sheet-like rhomboid coil in an embodiment of the present invention. Figure 1 (Top-down view);

[0028] Figure 17 This is a schematic diagram illustrating the second step of rolling the sheet-like rhomboid coil in an embodiment of the present invention. Figure 2 (3D perspective);

[0029] Figure 18 This is a schematic diagram illustrating the second step of rolling the sheet-like rhomboid coil in an embodiment of the present invention. Figure 3 (The focus is on showing the state in which the retractable pressure column unit extends into the sheet-like diamond coil.)

[0030] Figure 19 This is a schematic diagram illustrating the third step of rolling the sheet-like rhomboid coil in an embodiment of the present invention. Figure 1 (Top-down view);

[0031] Figure 20 This is a schematic diagram illustrating the third step of rolling the sheet-like rhomboid coil in an embodiment of the present invention. Figure 2 (The key point is to illustrate the state in which the coiled wire is set around the rotating center cylinder.)

[0032] Figure 21 This is a photograph of the actual product of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 01. Stacking fixture; 02. Coarse rolling equipment; 03. Fine rolling equipment; 04. First sheet-shaped rhomboid coil; 05. Second sheet-shaped rhomboid coil; 06. Sheet-shaped stacked coil body; 07. Open-ended circular ring-shaped stacked coil body; 08. Hollow cup motor coil; 011. First positioning post; 012. Second positioning post; 013. Third positioning post; 014. Fourth positioning post; 015. Support plate; 021. Rolling cylinder.

[0035] 100. Arc-shaped, flat, diamond-shaped coil; 300. Rolled coil;

[0036] 101. Proximal segment; 102. Mid-segment; 103. Distal segment;

[0037] 120. Coil placement platform module;

[0038] 11. Rotatable central cylinder; 12. Fixed support plate; 13. Movable lifting plate; 14. Coil slot; 15. Lifting power for the movable plate; 16. Support frame; 17. Locking screw; 18. Adjusting screw; 19. Coil winding channel;

[0039] 111. Clamping ring groove;

[0040] 121. Fixed plate body; 122. Fixed locking pin;

[0041] 131. Main body of the movable tray; 132. Movable retaining post; 133. Material ejection ring;

[0042] 151. Lowering drive spring; 152. Guide plate; 153. Lateral telescopic power unit; 154. Rolling element;

[0043] 161. Supporting the chassis; 162. Supporting the vertical frame;

[0044] 1521. Driven surface; 1522. First limiting ring;

[0045] 1531. Wedge block; 1532. Lateral telescopic drive;

[0046] 1611, Center post insertion slot; 1612, Locking component mounting hole;

[0047] 15221, Lowering limit plane;

[0048] 15311, Active driving surface;

[0049] 21. Telescopic positioning post; 22. Center stop bar; 23. Telescopic drive; 24. Base plate; 25. Fixing ring; 26. Bushing; 27. Column head snap-fit ​​gap; 28. Spring pressure ring; 30. Connector mounting bracket; 31. Air pipe connector; 32. Rotary connector; 34. Sensor mounting bracket; 35. Sensing ring; 37. Second sensor; 38. Pressure plate; 39. Compression spring; 40. Rotary drive; 41. Drive gear; 42. Driven gear;

[0050] 112. Sliding hole;

[0051] 211. Positioning main section; 212. Column head section;

[0052] 221. Spring-loaded section; 222. Pushing section; 223. Sliding section; 224. Connecting section;

[0053] 281. Guide surface;

[0054] 2111, Connecting end;

[0055] 2121, Positioning end; 2122, Arc surface;

[0056] 2211. Supporting step ring;

[0057] 570. Upper plate module;

[0058] 5. Synchronous coil device;

[0059] 51. Front pressure coil fixing plate; 52. Telescopic pressure coil unit; 53. Upper lifting ring plate; 54. Upper lifting power component; 55. Upper wedge-shaped active pressure block; 56. Upper tension spring; 57. Upper upright; 59. Upper vertical sliding assembly; 60. Lateral sliding assembly; 61. Tension spring connecting adjusting screw; 62. Set screw; 63. Upper power component mounting plate;

[0060] 511. Feed inlet;

[0061] 521. Three-pressure point mounting plate; 522. First rotating wheel; 523. Coil pressure head;

[0062] 541. First power telescopic shaft;

[0063] 551. Upper active extrusion surface;

[0064] 591. Upper vertical slide rail; 592. Upper vertical slider;

[0065] 601. Horizontal slide rail; 602. First horizontal slider;

[0066] 631. Install the vertical plate at the top; 632. Install the horizontal plate at the first top; 633. Install the horizontal plate at the first bottom;

[0067] 5231. Spring sleeve; 5232. First compression spring; 5233. Plunger mounting rod; 5234. Spring plunger;

[0068] 5211. Horizontal right-angled edge plate; 5212. Vertical right-angled edge plate;

[0069] 52121, Pressure component mounting groove;

[0070] 52331, Second limiting ring; 52332, Connecting internal thread;

[0071] 52341, Compression rod; 52342, Ball joint structure;

[0072] 7. Synchronous column pressing device;

[0073] 71. Front pressure positioning fixing plate; 72. Telescopic pressure column unit; 73. Lower lifting ring plate; 74. Lower lifting power component; 75. Lower wedge-shaped active pressure block; 76. Lower tension spring; 77. Lower upright; 78. Fixed cover; 79. Lower vertical sliding assembly; 80. Second horizontal slider; 81. Lower power component mounting plate;

[0074] 721. Double pressure point mounting plate; 722. Second rotating wheel; 723. Positioning pressure head;

[0075] 741. Second power telescopic shaft;

[0076] 751. Lower active extrusion surface;

[0077] 791. Lower vertical slide rail; 792. Lower vertical slider;

[0078] 811. Install the vertical plate at the bottom; 812. Install the horizontal plate at the top.

[0079] 7211. Lateral guide structure; 7212. Mounting boss for clamping components;

[0080] 7231. Pin sleeve; 7232. Press pin; 7233. Second compression spring; 7234. Connecting adjusting screw;

[0081] 72121, Positioning groove; 72122, Screw mounting groove. Detailed Implementation

[0082] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0083] The following is in conjunction with the appendix Figure 2-20 The invention provides a further description of the special equipment for forming hollow cup motor coils from multi-rhomboid coils.

[0084] Please refer to this carefully. Figure 2-5 , Figure 9-10 and Figure 14-15 This invention discloses a special device for synthesizing multi-rhomboid coils into hollow cup motor coils, including a coil placement platform module 120 and an upper plate module 570 arranged around the upper part of the coil placement platform module 120; the coil placement platform module 120 includes: a rotatable central cylinder 11 and n retractable positioning columns 21 uniformly arranged around the rotatable central cylinder 11, where n≥3 and n is a natural number, and the retractable positioning columns 21 are slidably connected to the rotatable central cylinder 11 along the radial direction of the rotatable central cylinder 11; the upper plate module 570 includes a synchronous pressing column assembly. The device includes a 7-position and a synchronous pressing coil device 5. The synchronous pressing coil device 7 includes a retractable pressing coil unit 72, and the synchronous pressing coil device 5 includes a retractable pressing coil unit 52. There are n sets of retractable pressing coil units 72, and the n sets of retractable pressing coil units 72 are evenly arranged around the outside of the rotatable central cylinder 11. The special equipment for multi-rhomboid coil rolling to form hollow cup motor coils includes a column-column alignment state. When the special equipment for multi-rhomboid coil rolling to form hollow cup motor coils is in the column-column alignment state, each set of retractable pressing coil units 72 is set directly opposite a retractable positioning column 21.

[0085] In this embodiment, the rotatable central cylinder 11 can rotate around its own axis. Specifically, this can be achieved by directly installing a rotary motor for drive, or by using a structure where the motor drives a wheel system. The retractable positioning post 21 is a retractable structure, specifically, the retractable positioning post 21 can slide radially along the rotatable central cylinder 11. In practice, the retractable positioning post 21 can be driven to extend or retract through various methods, such as manually pressing or pulling it in, or using the retractable pressing post unit 72 to press it into the rotatable central cylinder 11 and simultaneously pressing it out through the central abutment 22 (see below for details).

[0086] Regarding how to achieve column alignment: The retractable pressure column unit 72 and the retractable positioning column 21 can be pre-set at the same height. When the rotatable central cylinder 11 rotates the retractable positioning column 21, the retractable pressure column unit 72 and the retractable positioning column 21 can be positioned directly opposite each other. Of course, if the retractable pressure column unit 72 and the retractable positioning column 21 are not at the same height, the retractable pressure column unit 72 can be lowered to the same height as the retractable positioning column 21 first, and then the rotatable central cylinder 11 can be rotated to achieve the retractable pressure column unit 72 being directly opposite the retractable positioning column 21.

[0087] The process of using the special equipment for rolling multi-diamond coils to synthesize hollow cup motor coils in this embodiment to achieve the rolling of sheet-like diamond coils is as follows:

[0088] The first step is to extend the retractable positioning column 21 and retract the retractable pressure column unit 72.

[0089] The second step is to arrange the n flat rhomboid coils vertically ( Figure 16-18 (As shown) The plate-shaped rhomboid coil is arranged around the rotatable central cylinder 11. The inner hole of the plate-shaped rhomboid coil is rhomboid, including the inner diagonal points A and B arranged opposite each other in the lateral direction. When placed, ensure that the inner diagonal point A of the plate-shaped rhomboid coil is hung on a retractable positioning post 21.

[0090] The third step involves extending the retractable pressure column unit 72 into the sheet-like rhomboid coil. The rotatable central cylinder 11 rotates away from the retractable pressure column unit 72, causing the retractable pressure column unit 72 to contact A and continue applying a lateral pulling force to the sheet-like rhomboid coil, thus widening the distance between A and B. Simultaneously, the retractable coil pressing unit 52 extends and presses the side of the sheet-like rhomboid coil closest to B, deforming the coil and bringing it closer to the rotatable central cylinder 11. As the pressing continues, the diagonal point B of the sheet-like rhomboid coil can be hung on the retractable positioning column 21 at a preset position. By pre-setting the stacking pattern of the sheet-like rhomboid coils, the deformed coils are stacked on the retractable positioning column 21 according to a certain pattern, forming a complete cylindrical coil 300. Figures 19-20(As shown in the diagram), it can simultaneously perform the processes of rough rolling and fine rolling.

[0091] The fourth step is to retract the retractable pressure column unit 72. According to the shape of the coil 300, the shape of the end of the retractable pressure column unit 72 is pre-set so that it fits against the outside of the coil 300. While rotating the rotatable central cylinder 11, the retractable pressure column unit 72 repeatedly squeezes the outer periphery of the sheet-like rhomboid coil, which can further refine the roundness of the coil 300.

[0092] Fifth step, rotate the angle of the rotatable central cylinder 11 as needed so that the retractable pressure column unit 72 is aligned with the retractable positioning column 21. Extend the retractable pressure column unit 72 and use it as the retraction power of the retractable positioning column 21 to press all the retractable positioning columns 21 back into the rotatable central cylinder 11. This does not affect the axial release of the coil 300 along the rotatable central cylinder 11, making it easier to unload.

[0093] It should be noted that in the third step, during implementation, it is necessary to ensure that the retractable pressure column unit 72 and the retractable positioning column 21 at the target position are aligned and abutted, or that the retractable pressure column unit 72 extends beyond the retractable positioning column 21 at the target position and that the retractable pressure column unit 72 and the retractable positioning column 21 at the target position have an overlapping section; only in this way can the sheet-like rhomboid coil positioned by the retractable pressure column unit 72 be transitioned to the retractable positioning column 21 at the target position.

[0094] It should also be noted that in the third step, the retractable positioning posts 21 surrounding the rotatable central cylinder 11 are sequentially designated as the first post, second post, third post, fourth post, fifth post, etc. For example, the stacking pattern can be set as follows: the two ends of the first sheet-shaped rhombus coil are hung on the first post and the third post respectively; the two ends of the second sheet-shaped rhombus coil are hung on the second post and the fourth post respectively; the two ends of the third sheet-shaped rhombus coil are hung on the third post and the fifth post respectively; and so on, until the entire ring is completed.

[0095] It should also be noted that: multiple sets of retractable coil units 52 are preferred for higher efficiency, but only one set of retractable coil units 52 can also be implemented. Specifically, the retractable coil unit 52 can be configured as a structure that can move around the rotatable central cylinder 11. While the retractable coil unit 52 rotates, it continuously extends and retracts, and repeatedly strikes the outside of the coil.

[0096] Compared with existing technologies, this invention provides an integrated device capable of coil stacking and rolling processes. This embodiment creatively replaces the traditional planar coil stacking fixture with a cylindrical, rotatable central cylinder 11. The rotatable central cylinder 11 has protruding, retractable positioning posts 21 distributed on its outer side, providing conditions for stacking multiple sheet-like rhomboid coils in a circular pattern. Using this embodiment's dedicated equipment for rolling and synthesizing multi-rhomboid coils into hollow cup motor coils, the manual action of pulling apart the sheet-like rhomboid coils and placing them onto the retractable positioning posts 21 can be replaced, freeing up manpower and achieving a high degree of automation. Furthermore, the rolling scheme implemented using this embodiment's dedicated equipment for rolling and synthesizing multi-rhomboid coils into hollow cup motor coils avoids the traditional method of guiding the stacked sheet-like coil body 06 into the rolling cylinder for coarse rolling. Instead, the two ends of the sheet-like rhomboid coil are hung on two retractable positioning posts 21, which provide precise positioning, ensuring the accuracy of the rolled coil 300. The retractable pressure column unit 72 can also retract the retractable positioning column 21 into the rotatable central cylinder 11 without affecting the axial release of the coil 300 along the rotatable central cylinder 11, which facilitates unloading.

[0097] Please continue to combine Figure 12 According to a specific embodiment of the present invention, the coil placement platform module 120 further includes a fixed support plate 12 and a movable lifting plate 13 respectively arranged around the rotatable central cylinder 11; the fixed support plate 12 includes a fixed plate body 121 and n fixed pins 122 fixed to the upper part of the fixed plate body 121, and the movable lifting plate 13 includes a movable plate body 131 and n movable pins 132 fixed to the upper part of the movable plate body 131; the movable plate body 131 is located below the fixed plate body 121; the n fixed pins 122 are evenly arranged around the rotatable central cylinder 11, and the n movable pins 132 are evenly arranged around the rotatable central cylinder 11, and the movable pins 132 are located above the fixed pins 122. Near the side of the rotatable central cylinder 11, and on the side of each fixed pin 122, there is a corresponding movable pin 132; the movable lifting plate 13 includes an upward state and a downward state; when the movable lifting plate 13 is in the upward state, the movable pin 132 penetrates through the fixed plate body 121, and each movable pin 132 and a fixed pin 122 located on its side together form a coil slot 14, each coil slot 14 is used to clamp and fix an arc-shaped sheet-like rhomboid coil 100; when the movable lifting plate 13 is in the downward state, the top of the movable pin 132 is lower than the upper surface of the fixed plate body 121, and a coil winding channel 19 is formed between the fixed pin 122 and the rotatable central cylinder 11.

[0098] It should be noted that in this embodiment, the sheet-like rhomboid coil is defined as arc-shaped, meaning that the sheet-like rhomboid coil needs to be pre-bent. The arc-shaped sheet-like rhomboid coil 100 is entirely sheet-like; when placed vertically, its projection on the horizontal plane is an arc, and its projection on the vertical plane is a rhombus. Compared to the previous embodiment that used sheet-like rhomboid coils (planar, not pre-bent) as raw materials, this embodiment uses arc-shaped sheet-like rhomboid coils 100 as raw materials for rolling, resulting in less coil deformation and higher rolling efficiency and precision.

[0099] In this embodiment, the functions of each component are described as follows.

[0100] The fixed support plate 12 is a fixed structure with multiple fixed posts 122. In specific implementation, if 13 sheet-shaped rhomboid coils are needed to form a rolled coil 300, then n=13, and the number of fixed posts 122 is correspondingly 13. The accompanying drawings of this invention are also illustrated with n=13 as an example.

[0101] The movable lifting plate 13 is a height-adjustable structure with multiple movable locking pins 132. The number of movable locking pins 132 is the same as that of the fixed locking pins 122, and their positions correspond one-to-one. The movable lifting plate 13 can be switched between an upward and downward state by the movable plate lifting power 15. The movable plate lifting power 15 is used to drive the movable lifting plate 13 to move up and down. The movable plate lifting power 15 can be a lifting cylinder, or a power structure composed of a combination of cam and spring, or a combination of inclined block and spring.

[0102] When the movable lifting plate 13 is in the rising state, that is, the movable locking post 132 passes through the corresponding hole on the fixed plate body 121, the movable locking post 132 rises to the side of the fixed locking post 122. The fixed plate body 121 has n coil slots 14 distributed in a preset shape. The shapes of the fixed locking post 122 and the movable locking post 132 are set according to the curvature of the arc-shaped rhomboid coil 100 to ensure that the coil slots 14 formed by the combination of the two can just lock the arc-shaped rhomboid coil 100.

[0103] The added structures in this embodiment (fixed support plate 12 and movable lifting plate 13) serve two purposes: First, they form coil slots 14 to better facilitate the vertical arrangement of n arc-shaped rhomboid coils 100 around the rotatable central cylinder 11 (related to the second step of the winding process in the above embodiment). Second, they form a coil winding channel 19, without affecting the movement of the arc-shaped rhomboid coils 100 towards the rotatable central cylinder 11 (related to the third step of the winding process in the above embodiment).

[0104] Before rolling, n arc-shaped rhomboid coils 100 are inserted one by one into n coil slots 14 by manual labor or robotic arms, so as to position the n arc-shaped rhomboid coils 100 in the predetermined positions.

[0105] In practice, by pre-setting the extension direction of the coil slot 14, after the arc-shaped rhomboid coil 100 is inserted into the coil slot 14, it can be ensured that the inner diagonal point A of the arc-shaped rhomboid coil 100 is exactly hung on a retractable positioning post 21. After positioning is completed, the retractable pressure post unit 72 extends out and into the arc-shaped rhomboid coil 100. The lifting power 15 of the movable plate causes the movable lifting plate 13 to be in a lowering state. In this state, since the movable post 132 is lowered, there is no protruding movable post 132 obstructing the fixed post 122 and the rotatable central cylinder 11, forming a smooth coil winding channel 19, which is conducive to the smooth implementation of the third step of the winding process in the above embodiment.

[0106] As can be seen from the above, with the structure of this embodiment, the coil slots 14 are arranged in a ring array around the rotatable central cylinder 11, which can enable multiple arc-shaped sheet-like rhomboid coils 100 to be positioned at a predetermined position; the snap-fit ​​station is a movable structure, which will not affect the multiple arc-shaped sheet-like rhomboid coils 100 from being rolled inward into a whole coil 300.

[0107] According to a specific embodiment of the present invention, the coil winding channel 19 is generally annular, and the bottom surface of the coil winding channel 19 is flat; the movable disk body 131 is generally annular, and the movable lifting disk 13 further includes a material ejection ring 133 fixed to the upper inner side of the movable disk body 131 and surrounding the rotatable central cylinder 11. The material ejection ring 133 is generally annular, and the material ejection ring 133 is slidably connected to the rotatable central cylinder 11; when the movable lifting disk 13 is in the descending state, the top surface of the material ejection ring 133 is lower than the upper surface of the fixed disk body 121; when the movable lifting disk 13 is in the ascending state, the top surface of the material ejection ring 133 is higher than the upper surface of the fixed disk body 121.

[0108] In this embodiment, the ejector ring 133 is used to achieve ejection of the top material. In use, after all the arc-shaped sheet-like rhomboid coils 100 are wound and stacked on the rotatable central cylinder 11 to form an integral coil 300, the coil 300 is located directly above the ejector ring 133. The movable plate lifting power 15 drives the movable lifting plate 13 to move upward, and the ejector ring 133 slides upward along the rotatable central cylinder 11, pushing the coil 300 to a certain height, so that the upper part of the coil 300 comes out of the rotatable central cylinder 11, which facilitates the automatic unloading of the coil 300 in the next process. For example, the coil 300 can be removed by using a robotic arm to grip the upper part of the coil 300 that has come out. Furthermore, since the movable plate body 131, the movable locking pin 132, and the ejector ring 133 are a single fixed structure, when the movable plate lifting power 15 drives the movable lifting plate 13 to rise, the ejector ring 133 rises synchronously to achieve ejection, without the need for additional lifting drive power. That is, the power that makes the movable locking pin 132 rise and form the coil slot 14 with the fixed locking pin 122 and the power that makes the ejector ring 133 rise synchronously to achieve ejection are the same power. Moreover, the process of positioning the arc-shaped sheet-like rhomboid coil 100 in the coil slot 14 and the process of pushing out the rolled coil 300 to achieve ejection are sequential processes that do not cause interference. This embodiment has a simple and ingenious structure, shares power, and has low cost.

[0109] The radius of the arc on the outer wall of the arc-shaped rhomboid coil 100 is R1, and the radius of the arc on the inner wall is R2. The side of the fixed pin 122 near the rotatable central cylinder 11 is an arc surface that matches the curvature of the outer wall of the arc-shaped rhomboid coil 100, and the side of the movable pin 132 away from the rotatable central cylinder 11 is an arc surface that matches the curvature of the inner wall of the arc-shaped rhomboid coil 100. The lower part of the arc-shaped rhomboid coil 100 includes a proximal segment 101, a middle segment 102, and a distal segment 103 connected in sequence. The arc-shaped rhomboid coil 100 includes a snap-fit ​​state; when the arc-shaped rhomboid coil 100 is in the snap-fit ​​state: two adjacent arc-shaped rhomboid coils 100 are spaced apart, and the inner sidewall of the arc-shaped rhomboid coil 100 faces the rotatable central cylinder 11, and the end of the proximal segment 101 away from the middle segment 102 abuts against the outer side of the rotatable central cylinder 11, and the end of the distal segment 103 away from the middle segment 102 is spaced apart from the outer side of the rotatable central cylinder 11, and the middle segment 102 is snapped into the coil slot 14.

[0110] In this embodiment, the two opposing surfaces of the fixed locking post 122 and the movable locking post 132 are arc surfaces that match the inner and outer surfaces of the arc-shaped rhomboid coil 100. This structure facilitates the clamping and fixing of the arc-shaped rhomboid coil 100. It should be noted that "matching" in this embodiment means that the radius of the arc surface is basically the same as the matched object, that is, the radius of the arc surface needs to be slightly larger or slightly smaller than the matched object. For example, the arc radius of the side of the fixed locking post 122 near the rotatable central cylinder 11 is: R1+0.5~R1+1mm; or the arc radius of the side of the movable locking post 132 away from the rotatable central cylinder 11 is: R2-0.5~R2-1mm. In specific implementation, it is necessary to select according to the actual thickness of the arc-shaped rhomboid coil 100 to ensure that the arc-shaped rhomboid coil 100 can be flexibly inserted and firmly clamped and fixed in the coil slot 14.

[0111] In this embodiment, the proximal segment 101 refers to the portion of the arc-shaped rhomboid coil 100 close to the rotatable central cylinder 11, the middle segment 102 refers to the middle section of the arc-shaped rhomboid coil 100, and the distal segment 103 refers to the portion of the arc-shaped rhomboid coil 100 away from the rotatable central cylinder 11. This embodiment specifically discloses the shape of the arc-shaped rhomboid coil 100 itself, and its position when it is in a snap-fit ​​state.

[0112] Please continue to combine Figure 11 According to a specific embodiment of the present invention, the coil placement platform module 120 further includes a movable plate lifting power 15 for driving the movable lifting plate 13 to switch between an upward state and a downward state; the movable plate lifting power 15 includes: a downward drive spring 151, a guide plate 152, and a lateral telescopic power unit 153; the lateral telescopic power unit 153 includes a wedge block 1531 and a lateral telescopic drive 1532; the downward drive spring 151 is disposed between the fixed plate body 121 and the movable plate body 131; the guide plate 152 is fixed to the lower part of the fixed plate body 121, and the lower outer side of the guide plate 152 is a driven surface 1521, which is a cone shape with a smaller bottom and a larger top; the wedge block 1531... The upper part of 31 is provided with an active driving surface 15311 that abuts against the driven driving surface 1521. The active driving surface 15311 is an inclined surface that matches the driven driving surface 1521. The lateral telescopic drive 1532 is installed laterally on one side of the guide plate 152 and is connected to the wedge block 1531 for driving the wedge block 1531 to extend and retract. The driven driving surface 1521 is embedded with a rolling element 154 that is tactilely connected to the wedge block 1531. The active driving surface 15311 abuts against the driven driving surface 1521 through the rolling element 154. The number of lateral telescopic power units 153 is m sets, where m is 2 or 3. The m sets of lateral telescopic power units 153 are evenly distributed on the outside of the guide plate 152.

[0113] This embodiment provides a specific structure for the movable disc lifting power unit 15. A wedge-shaped force transmission structure is used between the guide plate 152 and the wedge block 1531, converting the horizontal extension power of the lateral telescopic power unit 153 into the vertical upward power of the guide plate 152. Driven by the guide plate 152, the movable lifting disc 13 is in an upward state. Simultaneously, the guide plate 152 compresses the descent drive spring 151, causing the descent drive spring 151 to accumulate elastic force. When the lateral telescopic power unit 153 retracts, under the action of the elastic force of the descent drive spring 151, the guide plate 152 lowers along with the movable lifting disc 13, placing the movable lifting disc 13 in a downward state. The lateral telescopic power unit 153 is located on the side of the guide plate 152, driving the guide plate 152 upward from the side, and the descent drive spring 151 enables the guide plate 152 to descend. This embodiment, through a reasonable layout, ensures that the power driving the guide plate 152 to rise does not occupy the center position below the guide plate 152, reserving space for installing the telescopic drive 23 at the center position below the guide plate 152. Further designing the rolling elements 154 improves the smoothness of propulsion. Employing multiple evenly distributed lateral telescopic power units 153 ensures stable and uniform force distribution, further guaranteeing reliable and smooth operation. In practice, bullseye bearings can be embedded within wedge blocks 1531, with their protruding rolling balls serving as the rolling elements 154. Bullseye bearings can be purchased directly, making them readily available and inexpensive.

[0114] Please continue to combine Figure 13 , Figure 13 The solid arrow points in the direction of the retractable pressure column unit 72 pressing the retractable positioning column 21, while the hollow arrow points in the direction of the central abutment 22 moving. According to a specific embodiment of the present invention, the rotatable central cylinder 11 is cylindrical in shape, and n sliding holes 112 are circumferentially arranged on its side wall. Each sliding hole 112 contains a retractable positioning column 21 slidably connected to it. The end of the retractable positioning column 21 furthest from the central axis of the rotatable central cylinder 11 is the positioning end 2121. The coil placement platform module 120 includes a positioning state and a material unloading state. When the coil placement platform module 120 is in the positioning state, all retractable positioning columns 21... The positioning ends 2121 all extend out of the outer wall of the rotatable central cylinder 11; when the coil placement platform module 120 is in the unloading state, all positioning ends 2121 are received in the sliding hole 112; the coil placement platform module 120 also includes a central abutment 22 with one end extending into the rotatable central cylinder 11, the central abutment 22 includes a push section 222 that is shaped like a frustum cone, the push section 222 is used to push all the retractable positioning posts 21 out of the sliding hole 112, and make the coil placement platform module 120 in the positioning state.

[0115] In this embodiment, the rotatable central cylinder 11 serves as a support for stacking multiple rhomboid coils. The cylindrical rotatable central cylinder 11 provides a foundation for the arc-shaped, sheet-like rhomboid coils 100 to form a circular array-like stacked shape. The central abutment 22 is arranged along the axial direction of the rotatable central cylinder 11, and the extension / retraction direction of the telescopic positioning posts 21 is consistent with the radial direction of the rotatable central cylinder 11. When the central abutment 22 extends, the frustum-shaped pushing section 222 pushes all the telescopic positioning posts 21 out of the sliding hole 112. The coil placement platform module 120 is in a positioned state, and external power can be used to mount the rhomboid coils onto the two telescopic positioning posts 21. Specifically, the length of the telescopic positioning posts 21 extending beyond the outer wall of the rotatable central cylinder 11 must be sufficiently long to securely hold the arc-shaped, sheet-like rhomboid coils 100. In practice, by selecting a regular stacking scheme, a circular array-like stacked shape can be obtained, forming a rolled coil 300. In the positioning state, the rotatable central cylinder 11 has protruding retractable positioning posts 21 distributed on its outer side, providing conditions for multiple arc-shaped sheet-like rhomboid coils 100 to be stacked in a circle. In the unloading state, the retractable positioning posts 21 retract into the rotatable central cylinder 11, without affecting the axial release of the wound coils 300 along the rotatable central cylinder 11, facilitating unloading.

[0116] More specifically, the n sliding holes 112 are located at the same height on the rotatable central cylinder 11, and the n sliding holes 112 are evenly distributed with the central axis of the rotatable central cylinder 11 as the center. In this embodiment, this structure is used to ensure that all the arc-shaped sheet-like rhomboid coils 100 are evenly stacked at the same height, so as to improve the accuracy of the coil 300.

[0117] According to a specific embodiment of the present invention, the central abutment 22 further includes a sliding section 223 fixed to the lower part of the pushing section 222 and a connecting section 224 fixed to the lower part of the sliding section 223; the pushing section 222 and the sliding section 223 are both located inside the rotatable central cylinder 11, and the connecting section 224 is located below the rotatable central cylinder 11. The pushing section 222 is generally shaped like a frustum of a cone with a smaller upper part and a larger lower part; the sliding section 223 is cylindrical and is slidably connected to the inner wall of the rotatable central cylinder 11; the coil placement platform module 120 further includes a telescopic drive 23 connected to the connecting section 224 and used to drive the central abutment 22 to slide along the axial direction of the rotatable central cylinder 11; the end of the telescopic positioning post 21 away from the positioning end 2121 is the abutment end 2111; when the coil placement platform module 120 is in the positioning state, the upper part of the sliding section 223 abuts against the abutment end 2111.

[0118] In this embodiment, the telescopic drive 23 is connected to the central abutment 22 via the connecting section 224 to provide lifting power for the central abutment 22. When the central abutment 22 rises, the outer circumferential surface of the pushing section 222 acts on the abutting end 2111 from bottom to top, pushing the telescopic positioning post 21 to extend outward. When the central abutment 22 continues to rise until the sliding section 223 replaces the pushing section 222 and abuts the abutting end 2111, the central abutment 22 stops rising. This state is the positioning state. In this state, the outer surface of the cylindrical sliding section 223 abuts against the abutting end 2111. Even if an external force is applied to the telescopic positioning post 21, the telescopic positioning post 21 will not move, further ensuring the smooth implementation of the rolling process.

[0119] More specifically, the retractable positioning column 21 includes a connected positioning main body section 211 and a column head section 212; the positioning main body section 211 is cylindrical in shape, the column head section 212 is cylindrical in shape, the positioning main body section 211 and the column head section 212 are coaxially arranged, and the diameter of the column head section 212 is larger than the diameter of the positioning main body section 211; the column head section 212 is located inside the rotatable central cylinder 11, and the positioning main body section 211 is slidably connected to the sliding hole 112; the side of the column head section 212 away from the positioning main body section 211 is the positioning end 2121; the side of the positioning main body section 211 away from the column head section 212 is the abutment end 2111; the positioning end 2121 and the outer surface of the column head section 212 are connected by an arc surface 2122.

[0120] In this embodiment, the retractable positioning post 21 is generally bolt-shaped without threads, and the head section 212 has a large diameter to prevent it from falling off. The positioning body section 211 and the head section 212 are connected by a rounded surface. This smooth transition structure facilitates contact with the guide surface 281 and compresses the guide surface 281 to move upward.

[0121] According to a specific embodiment of the present invention, the central abutment 22 further includes a spring-loaded section 221 fixed to the top of the pushing section 222, and the lower part of the spring-loaded section 221 is provided with a protruding support step ring 2211; the coil placement platform module 120 further includes a locking head unit, which includes: a pressure plate 38, a compression spring 39, and a spring pressure ring 28; the pressure plate 38 is fixed to the top of the spring-loaded section 221; the spring pressure ring 28 is generally a round cap with an opening facing downwards, and the upper part of the spring pressure ring 28 is movably sleeved on the support step ring 2211, and the inner side of the spring pressure ring 28 is adjacent to the outer side of the spring-loaded section 221. The column head snap-fit ​​gap 27 is formed by the spacer, and the outer bottom of the spring pressure ring 28 has an inclined guide surface 281; the compression spring 39 is sleeved outside the spring mounting section 221, and the two ends of the compression spring 39 abut against the pressure plate 38 and the spring pressure ring 28 respectively; the coil placement platform module 120 also includes a transition state. When the coil placement platform module 120 is in the transition state, the compression spring 39 is in a compressed state under the squeezing action of the column head section 212; when the coil placement platform module 120 is in the unloading state, the compression spring 39 is in a relaxed state, and the column head section 212 is snapped into the column head snap-fit ​​gap 27.

[0122] In this embodiment, the spring section 221 is used to install the locking head unit. The two ends of the pressure plate 38 and the spring pressure ring 28 respectively abut against the compression spring 39. The pressure plate 38 is a fixed structure, and the spring pressure ring 28 is a movable structure. By squeezing the spring pressure ring 28, the compression spring 39 can be compressed.

[0123] When the coil placement platform module 120 is in the positioning state, the telescopic drive 23 drives the central abutment 22 together with the locking head unit downward, so that the locking head section 212 presses the guide surface 281, causing the spring pressure ring 28 to compress the compression spring 39 upward. The compression spring 39 accumulates elastic force, so that the coil placement platform module 120 is in the transition state.

[0124] When the coil placement platform module 120 is in the transition state, under the action of the external device, the positioning end 2121 is squeezed along the axial direction of the telescopic positioning column 21 until the column head section 212 moves to the bottom of the column head locking gap 27. Under the action of the elastic force of the compression spring 39, the spring pressure ring 28 is pushed down, and the column head section 212 is locked in the column head locking gap 27 to realize the anti-retraction function. The coil placement platform module 120 switches to the unloading state.

[0125] In this embodiment, a locking column unit is added so that when the coil placement platform module 120 is in the unloading state, the column head section 212 can be locked in the column head locking gap 27 to prevent the retractable positioning column 21 from moving. This ensures that even if there is an external impact during operation, the retractable positioning column 21 can be firmly fixed and will not protrude from the sliding hole 112, thus ensuring the smooth unloading of the coil 300.

[0126] According to a specific embodiment of the present invention, the synchronous pressing column device 7 further includes: a front pressing positioning member fixing plate 71, a lower lifting ring plate 73, and a lower lifting power member 74; a telescopic pressing column unit 72 is installed on the upper part of the front pressing positioning member fixing plate 71, and multiple sets of telescopic pressing column units 72 are arranged around the rotatable central cylinder 11; the lower lifting ring plate 73 is slidably connected to the front pressing positioning member fixing plate 71 in a vertical direction; the telescopic pressing column unit 72 includes: a double pressing point mounting plate 721, a lower driven force receiving member and a positioning member pressing head 723 respectively provided at both ends of the double pressing point mounting plate 721; the double pressing point mounting plate 721 is slidably connected to the lower lifting ring plate 73 in a horizontal direction; the positioning member pressing head 723... Facing the central axis of the rotatable central cylinder 11, each lower driven force-bearing component has a lower wedge-shaped active pressure block 75 on one side of its lower part. The lower wedge-shaped active pressure block 75 is fixed on the lower lifting ring plate 73. The lower part of the lower wedge-shaped active pressure block 75 has an inclined lower active extrusion surface 751 on the side near the lower driven force-bearing component. The lower active extrusion surface 751 abuts against the lower driven force-bearing component. The lower lifting power component 74 is connected to the lower lifting ring plate 73 and is used to drive the lower lifting ring plate 73 and all the lower wedge-shaped active pressure blocks 75 to rise together, extruding the lower driven force-bearing component and driving all the double pressure point mounting plates 721 carrying all the positioning component pressure heads 723 to approach the rotatable central cylinder 11 synchronously.

[0127] In this embodiment, the front pressure positioning plate 71 is a fixed structure, the lower lifting ring plate 73 is a liftable structure, and the lower lifting power component 74 provides lifting power to drive the lower lifting ring plate 73 to move up and down relative to the front pressure positioning plate 71. The dual pressure point mounting plate 721 is used to mount the lower driven force-bearing component and the positioning pressure head 723. The positioning pressure head 723 directly acts on the retractable positioning column 21. In use, the lower lifting power component 74 extends, driving the lower lifting ring plate 73 to rise. Since the lower wedge-shaped active pressure block 75 is fixed on the lower lifting ring plate 73, all the lower wedge-shaped active pressure blocks 75 rise together with the lower lifting ring plate 73. Each lower wedge-shaped active pressure block 75 presses upward against a lower driven force-bearing component. The lower wedge-shaped active pressure block 75 and the lower driven force-bearing component cooperate to convert the upward movement of the lower lifting ring plate 73 into the movement of the dual pressure point mounting plate 721 and the positioning pressure head 723 moving laterally toward the retractable positioning column 21.

[0128] A coil 300 is arranged around the rotatable central cylinder 11, and multiple retractable positioning posts 21 are arranged around the rotatable central cylinder 11. One side of each retractable positioning post 21 is located inside the rotatable central cylinder 11, and the other side of each retractable positioning post 21 passes through the coil 300. A material ejection ring 133 is provided below the coil 300. Multiple sets of retractable pressure post units 72 are arranged around the outside of the multiple retractable positioning posts 21. In specific implementation, the same number of retractable pressure post units 72 can be set according to the number of retractable positioning posts 21, and the positions of the two correspond one-to-one.

[0129] In use, the lower lifting power component 74 drives the lower lifting ring plate 73, along with all the lower wedge-shaped active pressure blocks 75, to rise together, squeezing the lower driven force-bearing components. This drives all the double-pressure point mounting plates 721, carrying all the positioning component pressure heads 723, to extend synchronously and approach the center of the rotatable central cylinder 11, applying pressure to the outer end face of the retractable positioning column 21. This completely presses the multiple retractable positioning columns 21 surrounding the rotatable central cylinder 11 into the rotatable central cylinder 11, thus completely separating the retractable positioning columns 21 from the coil 300. Then, the lower lifting power component 74 drives the lower lifting ring plate 73 to descend, and the retractable pressure column unit 72 retracts, completely separating the retractable pressure column unit 72 from the coil 300. In this state, no components obstruct the axial movement of the coil 300, facilitating the smooth implementation of the next unloading process.

[0130] In specific implementation, the retraction of the retractable pressure column unit 72 can be achieved through various structures. For example, the retraction of the retractable pressure column unit 72 can be achieved by using a lower tension spring 76. Another example is that the lower driven force-bearing member is a wedge block 1531 structure that is slidably connected to the lower wedge-shaped active pressure block 75.

[0131] Compared with the prior art, the synchronous pressing device 7 of the present invention can use the telescopic pressing unit 72 to completely press the multiple telescopic positioning columns 21 arranged around the rotatable central cylinder 11 into the rotatable central cylinder 11. Then the telescopic pressing unit 72 is retracted, so that there are no components to block the axial movement of the coil 300, which facilitates the smooth implementation of the next unloading process and provides specific structural support for the implementation of the new coiling scheme.

[0132] More specifically, the front pressure positioning plate 71 is generally in the shape of a circular ring; the lower lifting ring plate 73 is generally in the shape of a circular ring coaxially arranged with the front pressure positioning plate 71, and the lower lifting ring plate 73 is sleeved on the outside of the front pressure positioning plate 71, and the lower wedge-shaped active pressure block 75 is fixed on the upper part of the lower lifting ring plate 73.

[0133] In this embodiment, the front pressure positioning plate 71 is configured as an annular plate that matches the shape of the retractable pressure column unit 72, and the lower lifting ring plate 73 is configured as an annular plate that matches the shape of the front pressure positioning plate 71. With this structure, the structure of the synchronous pressure column device 7 can be simplified, making the mass and volume smaller. The synchronous pressure column device 7 of the present invention presents an overall cylindrical shape.

[0134] More specifically, the synchronous pressing column device 7 also includes: a lower tension spring 76, a lower upright rod 77, and a fixed cover 78. The fixed cover 78 is located above the front pressing positioning member fixing plate 71. The two ends of the lower upright rod 77 are fixedly connected to the front pressing positioning member fixing plate 71 and the fixed cover 78, respectively. The two ends of the lower tension spring 76 are connected to the fixed cover 78 and the double pressure point mounting plate 721, respectively. When all the double pressure point mounting plates 721 move synchronously toward the center of the rotatable central cylinder 11, all the lower tension springs 76 are stretched and accumulate a second elastic force. When the lower lifting power member 74 drives the lower lifting ring plate 73 to descend together with all the lower wedge-shaped active pressing blocks 75, under the action of the second elastic force, all the double pressure point mounting plates 721 carrying the positioning member pressing head 723 move synchronously away from the center of the rotatable central cylinder 11. The lower driven force-bearing member is a second rotating wheel 722 that is rotatably connected to the double pressure point mounting plate 721. The outer side of the second rotating wheel 722 abuts against the lower active pressing surface 751.

[0135] This embodiment discloses a specific retractable pressure column unit 72 retraction structure. Specifically, a fixed cover 78 is fixed above the front pressure positioning member fixing plate 71 via a lower upright rod 77, and the fixed cover 78 is used to fix one end of the lower tension spring 76. This embodiment also discloses a specific structure of the lower driven force-bearing member, namely, the driven member is a second rotating wheel 722. In use, the lower active pressing surface 751 presses the cylindrical second rotating wheel 722 to rotate, which can flexibly and smoothly convert the pressure of the lower wedge-shaped active pressure block 75 into the centripetal thrust of the dual-pressure point mounting plate 721. In specific implementation, a bearing can be directly used as the second rotating wheel 722, which is low-cost, easy to implement, and provides good rotational flexibility.

[0136] More specifically, the synchronous pressing column device 7 also includes a lower vertical sliding assembly 79, and the lower lifting ring plate 73 is slidably connected to the front pressing positioning member fixing plate 71 via the lower vertical sliding assembly 79. The lower vertical sliding assembly 79 includes a lower vertical slide rail 791 and a lower vertical slider 792 slidably connected to the lower vertical slide rail 791. The lower vertical slider 792 is fixed to the lower lifting ring plate 73, and the lower vertical slide rail 791 is fixed to the front pressing positioning member fixing plate 71. The synchronous pressing column device 7 also includes a second transverse slider 80 fixed to the upper part of the front pressing positioning member fixing plate 71. The lower part of the double pressing point mounting plate 721 extends into the second transverse slider 80, and the lower part of the double pressing point mounting plate 721 is provided with a transverse guide structure 7211 that cooperates with the second transverse slider 80 to form a sliding structure. The transverse guide structure 7211 is a recessed guide groove or a raised transverse guide bar.

[0137] According to a specific embodiment of the present invention, the synchronous coil pressing device 5 includes: a front coil fixing plate 51, a retractable coil pressing unit 52, an upper lifting ring plate 53, and an upper lifting power component 54; the retractable coil pressing unit 52 is installed on the lower part of the front coil fixing plate 51, and the upper lifting ring plate 53 is slidably connected to the front coil fixing plate 51 vertically; the retractable coil pressing unit 52 includes: a three-pressure point mounting plate 521, upper driven force-bearing components respectively disposed at both ends of the three-pressure point mounting plate 521, and a coil. The pressure head 523; the three-pressure point mounting plate 521 is slidably connected to the upper lifting ring plate 53 in the transverse direction; the coil pressure head 523 faces the central axis of the rotatable central cylinder 11, and each upper driven force-bearing component has an upper wedge-shaped active pressure block 55 on one side of its upper part. The upper wedge-shaped active pressure block 55 is fixed on the upper lifting ring plate 53, and the lower part of the upper wedge-shaped active pressure block 55 has an inclined upper active extrusion surface 551 on the side near the upper driven force-bearing component. The upper active extrusion surface 551 abuts against the upper driven force-bearing component; The lifting power component 54 is connected to the upper lifting ring plate 53 and is used to drive the upper lifting ring plate 53 and all the upper wedge-shaped active pressure blocks 55 to descend together, squeezing the upper driven force-bearing component, and driving all the three-pressure point mounting plates 521 carrying all the coil pressure heads 523 to synchronously approach the rotatable central cylinder 11; the front pressure coil fixing plate 51 is generally in the shape of a circular plate, and the upper middle part of the front pressure coil fixing plate 51 is the feed port 511; the upper lifting ring plate 53 is generally a circular ring coaxially arranged with the front pressure coil fixing plate 51. The plate is plate-shaped, with the upper lifting ring plate 53 sleeved on the outside of the front pressure coil fixing plate 51, and the upper wedge-shaped active pressure block 55 fixed to the lower part of the upper lifting ring plate 53; there are n sets of retractable pressure coil units 52, which are evenly distributed around the central axis of the rotatable central cylinder 11, and the retractable pressure coil units 52 and the retractable pressure column units 72 are arranged alternately; and the included angle between any set of retractable pressure coil units 52 and the two adjacent retractable pressure column units 72 is the same.

[0138] It should be noted that the structure and function of the synchronous pressure coil device 5 are similar to those of the synchronous pressure column device 7, and their working principles can be referred to each other.

[0139] The front pressure coil fixing plate 51 is a fixed structure, while the upper lifting ring plate 53 is a liftable structure. The upper lifting power component 54 provides lifting power to drive the upper lifting ring plate 53 to move up and down relative to the front pressure coil fixing plate 51. The three-pressure point mounting plate 521 is used to mount the upper driven force-bearing component and the coil pressure head 523. The coil pressure head 523 directly acts on the arc-shaped sheet-like diamond coil 100. In use, the upper lifting power component 54 extends, driving the upper lifting ring plate 53 to descend. Since the upper wedge-shaped active pressure block 55 is fixed on the upper lifting ring plate 53, all the upper wedge-shaped active pressure blocks 55 descend together with the upper lifting ring plate 53. Each upper wedge-shaped active pressure block 55 presses down on an upper driven force-bearing component. The upper wedge-shaped active pressure block 55 and the upper driven force-bearing component cooperate to convert the descent of the upper lifting ring plate 53 into the action of the three-pressure point mounting plate 521 and the coil pressure head 523 moving laterally toward the arc-shaped sheet-like diamond coil 100.

[0140] Multiple sets of retractable coil pressing units 52 and multiple sets of retractable pressure column units 72 are respectively arranged around the outside of multiple retractable positioning columns 21, and the retractable coil pressing units 52 and retractable pressure column units 72 are arranged at intervals. Multiple retractable positioning columns 21 are arranged around a rotatable central cylinder 11, with one side of each column located inside the rotatable central cylinder 11 and the other side passing through a coil 300. A material ejection ring 133 is provided below the coil 300. In specific implementation, the same number of retractable pressure column units 72 can be set according to the number of retractable positioning columns 21, and their positions correspond one-to-one. Multiple arc-shaped, sheet-like rhomboid coils 100 are arranged around the rotatable central cylinder 11. In this embodiment, the number of retractable positioning columns 21, the number of arc-shaped, sheet-like rhomboid coils 100, the number of retractable pressure column units 72, and the number of retractable coil pressing units 52 are all equal. The usage process is as follows.

[0141] First, the retractable coil pressing unit 52 is used to repeatedly compress the arc-shaped sheet-like rhomboid coil 100. Specifically, the upper lifting power component 54 drives the upper lifting ring plate 53 and all the upper wedge-shaped active pressure blocks 55 to descend together, compressing the upper driven force-bearing component. This drives all the three-pressure point mounting plates 521, carrying all the coil pressing heads 523, to extend synchronously and approach the central axis of the rotatable central cylinder 11, so as to apply pressure to the outer surface of the arc-shaped sheet-like rhomboid coil 100, making the arc-shaped sheet-like rhomboid coil 100 tightly attached to the rotatable central cylinder 11. The upper lifting power component 54 drives the upper lifting ring plate 53 to rise, and the retractable coil pressing unit 52 retracts. When descending, the retractable coil pressing unit 52 extends and repeatedly applies pressure to the outer surface of the arc-shaped sheet-like rhomboid coil 100 to achieve the winding of the arc-shaped sheet-like rhomboid coil 100 into a whole coil 300.

[0142] Then, the retractable pressure column unit 72 is used to press the retractable positioning column 21. Specifically, the lower lifting power component 74 drives the lower lifting ring plate 73, along with all the lower wedge-shaped active pressure blocks 75, to rise together, pressing the lower driven force-bearing component. This drives all the double-pressure point mounting plates 721, carrying all the positioning component pressure heads 723, to extend synchronously and approach the center of the rotatable central cylinder 11, applying pressure to the outer end face of the retractable positioning column 21. This completely presses the multiple retractable positioning columns 21 surrounding the rotatable central cylinder 11 into the rotatable central cylinder 11, thus completely separating the retractable positioning column 21 from the coil 300. Afterward, the lower lifting power component 74 drives the lower lifting ring plate 73 to descend, and the retractable pressure column unit 72 retracts and completely separates from the coil 300. In this state, no component obstructs the axial movement of the coil 300, and the ejection ring 133 rises, which can push out the coil 300, ensuring the smooth implementation of the ejection process.

[0143] In practice, the retraction of the retractable pressure coil unit 52 and the retractable pressure column unit 72 can be achieved through various structures. For example, the retraction of the retractable pressure coil unit 52 can be achieved using an upper tension spring 56; another example is that the upper driven force-bearing member is a wedge-shaped passive pressure block (not shown in the figure) that is slidably connected to the upper wedge-shaped active pressure block 55. A similar structure can be used for the retractable pressure column unit 72.

[0144] The upper plate module 570 of the present invention can press multiple arc-shaped sheet-like rhomboid coils 100 arranged around the same rotatable central cylinder 11 against the rotatable central cylinder 11, so that the arc-shaped sheet-like rhomboid coils 100 are tightly attached to the rotatable central cylinder 11. By repeatedly lifting and lowering the upper lifting power member 54, pressure can be repeatedly applied to the outer surface of the arc-shaped sheet-like rhomboid coils 100, and finally the arc-shaped sheet-like rhomboid coils 100 are wound into a stable coil 300.

[0145] In this embodiment, the front pressure coil fixing plate 51 is provided with a feed port 511 to facilitate the insertion of the arc-shaped rhomboid coil 100. The front pressure coil fixing plate 51 is configured as an annular plate that matches the distribution shape of the retractable pressure coil unit 52, and the upper lifting ring plate 53 is configured as an annular plate that matches the shape of the front pressure coil fixing plate 51. The retractable pressure coil unit 52 surrounds the central axis of the rotatable central cylinder 11. With this structure, the structure of the upper plate module 570 can be simplified, resulting in a smaller weight and volume. The multi-rhomboid coil winding and synthesis hollow cup motor coil special equipment of the present invention presents an overall cylindrical shape.

[0146] In summary, the multi-rhomboid coil rolling and forming hollow cup motor coil of the present invention is composed of a synchronous coil pressing device 5 and a synchronous pressing column device 7, which are coaxially arranged vertically. The retractable pressing column unit 72 and the retractable coil pressing unit 52 are staggered, forming an integrated structure capable of simultaneously pressing the coil and the retractable positioning column 21. The structure is compact and reasonable, making full use of space and occupying little space. The multi-rhomboid coil rolling and forming hollow cup motor coil of the present invention provides specific structural support for the implementation of a novel rolling scheme.

[0147] Please continue to combine Figure 6 According to a specific embodiment of the present invention, the double-pressure point mounting plate 721 has a pressure member mounting boss 7212 on the top side near the rotatable central cylinder 11. The pressure member mounting boss 7212 has a recessed positioning groove 72121 on the side near the rotatable central cylinder 11, and a screw mounting groove 72122 communicating with the positioning groove 72121 on the side away from the rotatable central cylinder 11. The positioning member pressure head 723 includes: a pin sleeve 7231, a pressure pin 7232, a second compression spring 7233, and a connecting adjusting screw 7234. One end of the pin sleeve 7231 is inserted into the positioning... The adjusting screw 7234 passes through the screw mounting groove 72122 and extends into the pin sleeve 7231, and is threadedly connected to the pin sleeve 7231. One end of the pressure pin 7232 is located inside the pin sleeve 7231, and the pressure pin 7232 is slidably connected to the pin sleeve 7231. The other end of the pressure pin 7232 extends out of the pin sleeve 7231 and faces the rotatable central cylinder 11. The second compression spring 7233 is located inside the pin sleeve 7231, and both ends of the second compression spring 7233 abut against the pressure pin 7232 and the adjusting screw 7234, respectively.

[0148] This embodiment specifically discloses the mounting structure of the positioning member pressure head 723, where the positioning groove 72121 is used to position the pin sleeve 7231. This embodiment also specifically discloses the structure of the positioning member pressure head 723 itself. When the pressure pin 7232 applies pressure to the retractable positioning post 21, it first compresses the second compression spring 7233 to absorb impact energy and prevent damage to the pressure pin 7232 and the retractable positioning post 21 due to rigid collision.

[0149] More specifically, the pressure pin 7232 is a stepped shaft shape, smaller at both ends and larger in the middle. The end of the pressure pin 7232 near the second compression spring 7233 is inserted into one side of the second compression spring 7233 to position the second compression spring 7233. The end of the pressure pin 7232 away from the second compression spring 7233 extends out of the pin sleeve 7231. The pin sleeve 7231 has a constricted structure, which cooperates with the stepped structure on the pressure pin 7232 to prevent the pressure pin 7232 from completely dislodging from the pin sleeve 7231.

[0150] According to a specific embodiment of the present invention, the upper plate module 570 further includes an upper tension spring 56 and an upper upright rod 57. The fixed cover 78 is located below the front pressure coil fixing plate 51. The two ends of the upper upright rod 57 are fixedly connected to the front pressure coil fixing plate 51 and the fixed cover 78, respectively. The two ends of the upper tension spring 56 are connected to the fixed cover 78 and the three-pressure point mounting plate 521, respectively. When all the three-pressure point mounting plates 521 move synchronously toward the central axis of the rotatable central cylinder 11, all the upper tension springs 56 are stretched and accumulate elastic force. The upper lifting power component 54 drives the upper lifting ring plate 5. When the 3rd wedge-shaped active pressure block 55 rises together, under the action of elastic force, it drives all three-pressure point mounting plates 521 carrying all coil pressure heads 523 to move away from the central axis of the rotatable central cylinder 11 synchronously; the upper driven force-bearing component is the first rotating wheel 522 which is rotatably connected to the three-pressure point mounting plate 521; the outer side of the first rotating wheel 522 abuts against the upper active extrusion surface 551; the lower tension spring 76 is located above the fixed cover 78, and the upper tension spring 56 is located below the fixed cover 78; the lower upright 77 and the upper upright 57 are vertically staggered in the synchronous pressure column device 7.

[0151] In this embodiment, the fixed cover 78 also provides an installation base for the fixed connection of one end of the upper tension spring 56. The lower tension spring 76 and the upper tension spring 56 are located at the upper and lower parts of the fixed cover 78, respectively, so that the synchronous coil pressing device 5 and the synchronous pressing column device 7 have a nested overlapping section in the structure. Furthermore, the front coil fixing plate 51, the upper upright rod 57, the fixed cover 78, the lower upright rod 77, and the front pressing positioning member fixing plate 71 are fixedly connected from top to bottom to form an integrated fixed structure, providing a stable foundation for the installation and smooth operation of the retractable coil pressing unit 52 and the retractable pressing column unit 72. The staggered arrangement of the lower upright rod 77 and the upper upright rod 57 facilitates the staggered installation of the retractable coil pressing unit 52 and the retractable pressing column unit 72, so that the retractable coil pressing unit 52 and the retractable pressing column unit 72 can ultimately act on the same work station to realize the coil winding and provide conditions for the material unloading after winding.

[0152] This embodiment also discloses a specific retraction structure for the retractable pressure coil unit 52. The retraction structure of the retractable pressure coil unit 52 is similar to that of the retractable pressure column unit 72 and can be achieved through an upper tension spring 56. This embodiment also discloses a specific structure for the upper driven force-bearing member, namely, the driven member is a first rotating wheel 522. In use, the upper active pressing surface 551 presses the cylindrical first rotating wheel 522 to rotate, which can flexibly and smoothly convert the pressure of the upper wedge-shaped active pressing block 55 into the centripetal thrust of the three-pressure-point mounting plate 521. In specific implementation, the bearing can be directly used as the first rotating wheel 522, which is low-cost, easy to implement, and provides good rotational flexibility.

[0153] According to a specific embodiment of the present invention, the upper plate module 570 further includes an upper vertical sliding assembly 59, and the upper lifting ring plate 53 is slidably connected to the front pressure coil fixing plate 51 via the upper vertical sliding assembly 59. The upper vertical sliding assembly 59 includes an upper vertical slide rail 591 and an upper vertical slider 592 slidably connected to the upper vertical slide rail 591. The upper vertical slide rail 591 is fixed to the upper lifting ring plate 53, and the upper vertical slider 592 is fixed to the front pressure coil fixing plate 51. The upper plate module 570 also includes a horizontal sliding assembly 60 for three-point mounting. Plate 521 is slidably connected to the front pressure coil fixing plate 51 via the transverse sliding assembly 60. The transverse sliding assembly 60 includes a transverse slide rail 601 and a first transverse slider 602 slidably connected to the transverse slide rail 601. The transverse slide rail 601 is fixed to the three-pressure point mounting plate 521, and the first transverse slider 602 is fixed to the front pressure coil fixing plate 51. Two sets of upper vertical sliding assemblies 59 are formed, and the two sets of upper vertical sliding assemblies 59 and one upper power component mounting plate 63 are evenly distributed around the central axis of the rotatable central cylinder 11. More specifically, the upper lifting power component 54 is an electric push rod.

[0154] In this embodiment, the upper vertical sliding component 59 is used to achieve a sliding connection between the upper lifting ring plate 53 and the front pressure coil fixing plate 51, and the horizontal sliding component 60 is used to achieve a sliding connection between the front pressure coil fixing plate 51 and the three-pressure point mounting plate 521. This ensures the smoothness and stability of the sliding connection of the components.

[0155] According to a specific embodiment of the present invention, the three-pressure point mounting plate 521 is generally a right-angled plate composed of a horizontal right-angled side plate 5211 and a vertical right-angled side plate 5212; the horizontal slide rail 601 is fixed to the upper part of the horizontal right-angled side plate 5211; the pressure component mounting groove 52121 is provided on the side of the vertical right-angled side plate 5212 near the central axis of the rotatable central cylinder 11, and each vertical right-angled side plate 5212 is provided with two vertically arranged pressure component mounting grooves 52121; each set of retractable pressure coil unit 52 includes two sets of coil pressure heads 523 installed in the two pressure component mounting grooves 52121 respectively; each vertical right-angled side plate 5212 is also provided with a tension spring connecting adjustment screw 61, the tension spring connecting adjustment screw 61 is located between the two pressure component mounting grooves 52121, and one end of the upper tension spring 56 is connected to the tension spring connecting adjustment screw 61; the positioning pressure head 723 is located between the two sets of coil pressure heads 523.

[0156] In this embodiment, the three-pressure-point mounting plate 521 integrates two sets of coil pressure heads 523 and a first rotating wheel 522. The two sets of coil pressure heads 523 are used to press the upper and lower parts of the arc-shaped sheet-like rhomboid coil 100, respectively, to expand the range of action on the arc-shaped sheet-like rhomboid coil 100 and improve the uniformity of the deformation of the arc-shaped sheet-like rhomboid coil 100. The first rotating wheel 522 is used to press the upper wedge-shaped active pressure block 55. That is, three pressure points are formed on the three-pressure-point mounting plate 521.

[0157] It should be noted that although the retractable coil pressing unit 52 and the retractable column pressing unit 72 are respectively mounted on the upper and lower front coil pressing fixing plate 51 and the front pressing positioning fixing plate 71; however, the structural design of the right-angle plate-shaped three-pressure point mounting plate 521 ensures that the installation position of the retractable coil pressing unit 52 is lower, and the structural design of the pressing mounting boss 7212 located at the top of the double-pressure point mounting plate 721 ensures that the installation position of the retractable column pressing unit 72 is higher; ultimately, the retractable coil pressing unit 52 and the retractable column pressing unit 72 can be vertically staggered to avoid interference; and can work together on the arc-shaped sheet-like rhomboid coil 100 located at the same workstation (coil placement platform module 120).

[0158] The tension spring connecting adjusting screw 61 serves two purposes: firstly, it connects to the upper tension spring 56; secondly, rotating the tension spring connecting adjusting screw 61 adjusts its extension length, thereby adjusting the tension of the upper tension spring 56. The tension spring connecting adjusting screw 61 is located between the two pressure member mounting slots 52121, which improves the smoothness of the force applied by the upper tension spring 56.

[0159] A further preferred embodiment: The synchronous pressing column device 7 also includes a lower vertical sliding assembly 79. The lower lifting ring plate 73 is slidably connected to the front pressing positioning member fixing plate 71 via the lower vertical sliding assembly 79. The lower vertical sliding assembly 79 includes a lower vertical slide rail 791 and a lower vertical slider 792 slidably connected to the lower vertical slide rail 791. The lower vertical slider 792 is fixed to the lower lifting ring plate 73, and the lower vertical slide rail 791 is fixed to the front pressing positioning member fixing plate 71. The synchronous pressing column device 7 also includes a second transverse slider 80 fixed to the upper part of the front pressing positioning member fixing plate 71. The lower part of the double pressing point mounting plate 721 extends into the second transverse slider 80, and the lower part of the double pressing point mounting plate 721 is provided with a transverse guide structure 7211 that cooperates with the second transverse slider 80 to form a sliding structure. The transverse guide structure 7211 is a recessed guide groove or a raised transverse guide bar.

[0160] In this embodiment, the lower vertical sliding component 79 is used to realize the sliding connection between the lower lifting ring plate 73 and the front pressure positioning component fixing plate 71, and the second horizontal slider 80 and the horizontal guide structure 7211 are used to realize the sliding connection between the front pressure positioning component fixing plate 71 and the double pressure point mounting plate 721, ensuring the smoothness and stability of the component sliding connection.

[0161] Further preferred option: The synchronous pressing column device 7 also includes a lower power component mounting plate 81. The lower power component mounting plate 81 includes: a lower mounting vertical plate 811, a second upper mounting horizontal plate 812 and a second lower mounting horizontal plate (not shown in the figure) respectively fixed to the upper and lower parts of the lower mounting vertical plate 811. The second upper mounting horizontal plate 812 and the second lower mounting horizontal plate are located on both sides of the lower mounting vertical plate 811. The second upper mounting horizontal plate 812 is fixedly installed on the lower part of the front pressing positioning component fixing plate 71. The lower lifting power component 74 is installed on the second lower mounting horizontal plate. The lower lifting power component 74 includes a second power telescopic shaft 741. The extended end of the second power telescopic shaft 741 is connected to the lower lifting ring plate 73.

[0162] Because the fixed mounting parts (front pressure positioning plate 71) and the actuating parts (lower lifting ring plate 73) of the lower lifting power component 74 are arranged laterally, the lower lifting power component 74 cannot be directly installed. In this embodiment, the lower power component mounting plate 81 has a stepped structure. This structure allows the lower lifting power component 74 to be installed on the front pressure positioning plate 71, and also enables the second power telescopic shaft 741 to be connected to the lower lifting ring plate 73.

[0163] Further optimized solution: There are two sets of lower vertical sliding components 79, and the two sets of lower vertical sliding components 79 and a lower power component mounting plate 81 are evenly distributed around the central axis of the rotatable central cylinder 11; the lower lifting power component 74 is an electric push rod.

[0164] In this embodiment, two sets of lower vertical sliding components 79 are provided to further improve the smoothness of sliding. The position of the lower power component mounting plate 81 determines the position of the lower lifting power component 74. That is, the lower lifting power component 74 and the two sets of lower vertical sliding components 79 are evenly distributed, which can further improve the balance and stability of the force.

[0165] Please continue to combine Figure 7-8Further optimized solution: The three-pressure point mounting plate 521 has a recessed pressure component mounting groove 52121 on one side near the central axis of the rotatable central cylinder 11; the coil pressure head 523 includes: a spring sleeve 5231, a first compression spring 5232 and a pressure head plunger. One end of the spring sleeve 5231 extends into and is fixed in the pressure component mounting groove 52121. The spring sleeve 5231 is a hollow cylinder, and an elastic pressure component mounting hole is provided inside the spring sleeve 5231; one end of the pressure head plunger is located in the elastic pressure component mounting hole and is slidably connected to the spring sleeve 5231, and the other end of the pressure head plunger faces the central axis of the rotatable central cylinder 11; the first compression spring 5232 is located in the elastic pressure component mounting hole, and both ends of the first compression spring 5232 abut against the bottom of the pressure component mounting groove 52121 and the pressure head plunger, respectively.

[0166] This embodiment specifically discloses the mounting structure of the coil pressure head 523. The spring sleeve 5231 is fixed by the pressure mounting groove 52121, ensuring the stability of the spring sleeve 5231 installation. This embodiment also specifically discloses the structure of the coil pressure head 523 itself. When the pressure head plunger applies pressure to the arc-shaped rhomboid coil 100, it first squeezes the first compression spring 5232 to absorb impact energy, preventing damage to the pressure head plunger and the arc-shaped rhomboid coil 100 due to rigid collision, thus achieving flexible processing.

[0167] A further preferred embodiment: The coil pressure head 523 also includes a set screw 62 that penetrates the vertical right-angled side plate 5212 and acts on the spring sleeve 5231. The set screw 62 is used to fix the spring sleeve 5231 in the pressure mounting groove 52121. In this embodiment, the structure of locking and fixing the spring sleeve 5231 with the set screw 62 is convenient and quick.

[0168] Further preferred embodiment: The pressure head plunger includes a plunger mounting rod 5233 and a spring plunger 5234. One end of the plunger mounting rod 5233 is provided with a protruding second limiting ring 52331, and the other end of the plunger mounting rod 5233 is provided with a connecting internal thread 52332. One end of the spring plunger 5234 is fixedly connected to the plunger mounting rod 5233 through the connecting internal thread 52332. One end of the spring plunger 5234 is provided with a protruding pressure rod 52341. The end of the pressure rod 52341 near the central axis of the rotatable central cylinder 11 is a ball head structure 52342. The elastic pressure component mounting hole includes a first mounting hole and a second mounting hole that are connected. The first compression spring 5232 and the second limiting ring 52331 are both provided in the first mounting hole. The connection between the first mounting hole and the second mounting hole forms a limiting step to prevent the second limiting ring 52331 from dislodging from the elastic pressure component mounting hole.

[0169] In this embodiment, the pressure head plunger consists of a threaded plunger mounting rod 5233 and a spring plunger 5234, which improves the applicability of the invention. Specifically, during implementation, various specifications of spring plungers 5234 can be set according to different specifications of arc-shaped, sheet-like, and rhomboid coils. During use, a suitable specification of spring plunger 5234 can be selected and connected to the plunger mounting rod 5233 according to requirements.

[0170] Further optimized solution: The upper plate module 570 also includes an upper power component mounting plate 63. The upper power component mounting plate 63 includes: an upper mounting vertical plate 631, a first upper mounting horizontal plate 632 and a first lower mounting horizontal plate 633 respectively fixed to the upper and lower parts of the upper mounting vertical plate 631. The first upper mounting horizontal plate 632 and the first lower mounting horizontal plate 633 are located on both sides of the upper mounting vertical plate 631. The first lower mounting horizontal plate 633 is fixedly mounted on the upper part of the front pressure coil fixing plate 51. The upper lifting power component 54 is mounted on the first lower mounting horizontal plate 633. The upper lifting power component 54 includes a first power telescopic shaft 541. The extended end of the first power telescopic shaft 541 is connected to the upper lifting ring plate 53.

[0171] Because the fixing components (front pressure coil fixing plate 51) and the actuating components (upper lifting ring plate 53) of the lifting power component 54 are arranged horizontally, the lifting power component 54 cannot be directly installed. In this embodiment, the upper power component mounting plate 63 has a stepped structure. This structure allows the lifting power component 54 to be installed on the front pressure coil fixing plate 51, and enables the first power telescopic shaft 541 to be connected to the upper lifting ring plate 53.

[0172] Further preferred embodiment: The coil placement platform module 120 also includes a support frame 16, which includes a support base 161 and multiple support columns 162 fixed to the upper outer side of the support base 161; the top of each support column 162 is fixedly connected to the lower part of the fixed disk body 121; the upper part of the support base 161 is provided with a recessed central column insertion groove 1611, the lower section of the rotatable central cylinder 11 passes through the guide disk 152 and is slidably connected to the guide disk 152, and the bottom of the rotatable central cylinder 11 is inserted into the central column insertion groove 1611; the lateral telescopic drive 1532 is positioned directly between two adjacent support columns 162.

[0173] In this embodiment, the support frame 162 provides a stable fixed support for the fixed disk body 121. The bottom of the rotatable central cylinder 11 is inserted into the groove, which facilitates the vertical positioning of the rotatable central cylinder 11. The lateral telescopic drive 1532 is staggered from the support frame 162 to avoid interference.

[0174] Further preferred embodiment: The rotatable central cylinder 11 has a recessed locking ring groove 111 on its bottom outer side; the support base 161 is generally annular in shape; the support base 161 has a locking component mounting hole 1612 connecting its outer and inner sides, and the locking component mounting hole 1612 also connects to the locking ring groove 111; the coil placement platform module 120 also includes a locking screw 17, one end of which is fixed in the locking component mounting hole 1612, and the other end of which is connected to the locking ring groove. The bottom of the groove of 111 abuts; the outer side of the guide plate 152 is also provided with a raised first limiting ring 1522, the lower part of the first limiting ring 1522 is a descending limiting plane 15221; the coil placement platform module 120 also includes an adjusting screw 18, the lower part of the adjusting screw 18 is threadedly connected to the support base 161, and the upper part of the adjusting screw 18 is set directly opposite the descending limiting plane 15221; the top surface of the movable locking post 132 is a plane, and the top surface of the ejector ring 133 and the top surface of the movable locking post 132 are located in the same horizontal plane.

[0175] In this embodiment, the locking screw 17 is inserted through the locking mounting hole 1612 to lock and fix the support chassis 161 and the rotatable central cylinder 11, ensuring that the lower part of the rotatable central cylinder 11 is fixed in the central column insertion groove 1611. Adjusting the position between the top of the adjusting screw 18 and the lowering limit plane 15221 controls the lowering stroke of the guide plate 152 under the force of the lowering drive spring 151, achieving precise control of the lowering stroke.

[0176] In this embodiment, the top surfaces of the movable locking post 132 and the ejector ring 133 are located in the same horizontal plane, meaning that the movable locking post 132 and the ejector ring 133 have the same height. With this structure, the movable locking post 132 and the ejector ring 133 can simultaneously descend below the upper surface of the fixed disk body 121, forming a flat coil winding channel 19; the top surfaces of the movable locking post 132 and the ejector ring 133 can simultaneously rise, forming a coil slot 14 or being used for ejecting material, without any wasted travel. This structure ensures minimal lifting travel while meeting functional requirements, thus reducing the overall size of the device.

[0177] A further preferred embodiment: the coil placement platform module 120 also includes a rotating unit connected to the support chassis 161 and used to drive the support chassis 161 to rotate.

[0178] In this embodiment, the rotating unit drives the supporting chassis 161 to rotate, which in turn drives the rotatable central cylinder 11 and the retractable positioning post 21 to rotate synchronously. The synchronous rotation of the rotatable central cylinder 11 and the retractable positioning post 21 has the following functions: First, it can adjust the position of the retractable positioning post 21, making it easier for the retractable positioning post 21 to be aligned and inserted into the arc-shaped rhomboid coil 100. Second, when used in conjunction with the positioning member pressure head 723, after the positioning member pressure head 723 is inserted into the arc-shaped rhomboid coil 100, the rotatable central cylinder 11 and the retractable positioning post 21 rotate as a whole, causing the retractable positioning post 21 to move away from the positioning member pressure head 723. This can automatically widen the distance between the two diagonal points A and B of the arc-shaped rhomboid coil 100, making it easier to fit the other end of the arc-shaped rhomboid coil 100 onto the corresponding retractable positioning post 21.

[0179] A further preferred embodiment: The rotating unit includes a rotating drive 40, a driving gear 41, and a driven gear 42; the driven gear 42 is a cylindrical gear coaxially arranged with the supporting chassis 161, and the cylindrical gear is fixed to the lower or outer part of the supporting chassis 161; the driving gear 41 meshes with the driven gear 42; the rotating drive 40 is located on one side of the supporting chassis 161, and the rotating drive 40 is connected to the driving gear 41 and is used to drive the driving gear 41 to rotate.

[0180] Since the telescopic drive 23 is connected to the lower part of the central abutment 22, meaning that the telescopic drive 23 occupies the position of the rotation center of the support chassis 161, it is difficult to directly connect the rotational power at the rotation center. In this embodiment, the rotational drive 40 (such as a motor) is located on one side. By using the structure of the rotational drive 40 driving the driving gear 41 and the driven gear 42 to rotate, the support chassis 161 together with the rotatable central cylinder 11 and the telescopic positioning column 21 can be rotated as a whole by driving the side.

[0181] Since the rotatable central cylinder 11 needs to rotate at a relatively small angle during operation (to adjust the rotation angle of the telescopic positioning column 21 to align with the inner hole of the arc-shaped rhomboid coil 100; and to slightly widen the distance between the diagonal points A and B), in specific implementation, the number of teeth of the driving gear 41 is less than the number of teeth of the driven gear 42, which is conducive to deceleration drive and facilitates precise control of the rotation angle of the support chassis 161.

[0182] A further preferred embodiment: The coil placement platform module 120 further includes: a base plate 24, a fixing ring 25 fixed above the base plate 24, and a bushing 26 disposed inside the fixing ring 25. The lower part of the bushing 26 is rotatably connected to the fixing ring 25 via a bearing, and the upper part of the bushing 26 is fixedly connected to the driven gear 42 and the support chassis 161. The bushing 26 is a cylindrical shape with openings at the top and bottom. The connecting section 224 and the telescopic drive 23 extend into the bushing 26 from both ends. More specifically, the base plate 24 is flat, the fixing ring 25 is annular, and the bushing 26 is annular overall. In this embodiment, the base plate 24 is used to provide fixed support, and the bushing 26, the support chassis 161, and the driven gear 42 are rotatably connected to the fixing ring 25. This embodiment provides a rotating support structure, which helps to improve the overall stability and integrity of the invention.

[0183] A further preferred embodiment: A connector mounting bracket 30 is fixed to the lower part of the base plate 24. An air pipe connector 31 is provided on the connector mounting bracket 30. The telescopic drive 23 is a cylinder. A rotary connector 32 for introducing pressurized gas into the cylinder is provided at the bottom of the cylinder. A connecting air pipe is provided between the air pipe connector 31 and the rotary connector 32. In this embodiment, the air pipe connector 31 is used to introduce pressurized gas into the cylinder, and the rotary connector 32 satisfies the requirements for rotary connection, accommodating the axial rotation of the cylinder.

[0184] Further preferred embodiment: The coil placement platform module 120 also includes a sensor mounting bracket 34. The upper part of the sensor mounting bracket 34 is fixed to the connecting section 224, and the lower part of the sensor mounting bracket 34 extends downward from the bushing 26. A sensor ring 35 is fixedly installed below the sensor mounting bracket 34. A lifting position sensor is provided on one side of the sensor ring 35 to cooperate with the sensor ring 35 and to detect the lifting position of the center stop bar 22. The lifting position sensor includes a first sensor and a second sensor 37 arranged vertically. The first sensor and the second sensor 37 are respectively installed on the lower part of the base plate 24. The coil placement platform module 120 also includes a third sensor located on one side of the driven gear 42 and used to detect the rotation angle of the driven gear 42. A sensor plate is provided on the driven gear 42 to cooperate with the third sensor.

[0185] In this embodiment, by using a sensor in conjunction with an induction ring 35 or an induction plate, the lifting and rotating positions of the center stop 22 can be detected, which facilitates integration with the electrical control system and enables precise control of the lifting stroke of the cylinder and the rotation angle of the driven gear 42.

[0186] Further optimized solution: The arc-shaped rhomboid coil 100 is an arc-shaped sheet; the side of the fixed locking post 122 near the rotatable central cylinder 11 is an arc surface that matches the curvature of the outer wall of the arc-shaped rhomboid coil 100, and the side of the movable locking post 132 away from the rotatable central cylinder 11 is an arc surface that matches the curvature of the inner wall of the arc-shaped rhomboid coil 100; the lower part of the arc-shaped rhomboid coil 100 includes a proximal section 101, a middle section 102, and a distal section 103 connected in sequence; the arc-shaped rhomboid coil 100 includes a rhomboid inner hole, and the wall of the rhomboid inner hole includes an inner diagonal point A and a diagonal point B arranged laterally opposite each other; when the arc-shaped rhomboid coil 100 is in the locked state, the positioning member pressure head 723 is inserted into one arc-shaped rhomboid coil 100 in a corresponding manner, and the outer side of the telescopic positioning post 21 is set directly opposite the diagonal point A.

[0187] The special equipment for rolling multi-rhomboid coils to form hollow cup motor coils also includes a pre-tension state; when the special equipment for rolling multi-rhomboid coils to form hollow cup motor coils is in the pre-tension state, the arc-shaped sheet rhomboid coil 100 is in a snap-fit ​​state, and the retractable positioning post 21 is inserted into one arc-shaped sheet rhomboid coil 100 in a one-to-one correspondence, and the outer side of the positioning member pressure head 723 is set directly opposite the diagonal point B.

[0188] The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils also includes a coil pulling state; when the special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils is in the coil pulling state, the rotatable central cylinder 11 rotates so that the positioning pressure head 723 and the telescopic positioning column 21 act on the diagonal point A and the diagonal point B respectively, and increase the distance between the diagonal point A and the diagonal point B; when the distance between the diagonal point A and the diagonal point B increases to a preset value, the rotation of the rotatable central cylinder 11 stops.

[0189] The special equipment for rolling multi-rhomboid coils to form hollow cup motor coils also includes a coil pressing state; when the special equipment for rolling multi-rhomboid coils to form hollow cup motor coils is in the coil pulling state, when the distance between diagonal point A and diagonal point B expands to a preset value, the coil pressing head 523 presses the distal segment 103 and presses diagonal point B to hang on the corresponding retractable positioning column 21.

[0190] In summary, the multi-rhomboid coil rolling and synthesis hollow cup motor coil special equipment of the present invention takes "central cylinder 11" as the core. The upper and lower modules (coil placement platform and upper plate) cooperate through precise alignment, extension and retraction, and lifting. The sub-components support each other in structure and complement each other in function, so as to realize the automated process of coil rolling.

[0191] Figure 21 These are photographs of the actual product of the invention. From left to right, they are a stereoscopic photograph, a front view photograph, and a top view partial photograph.

[0192] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components; and they can also refer to a "transmission connection," that is, a power connection through various suitable methods such as belt drive, gear drive, or sprocket drive. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A special equipment for rolling multi-rhomboid coils into hollow cup motor coils, characterized in that, The system includes a coil placement platform module and an upper plate module surrounding the coil placement platform module. The coil placement platform module includes a rotatable central cylinder and n retractable positioning columns evenly arranged around the rotatable central cylinder, where n ≥ 3 and n is a natural number. The retractable positioning columns are slidably connected to the rotatable central cylinder along its radial direction. The upper plate module includes a synchronous pressing column device and a synchronous coil pressing device. The synchronous pressing column device includes retractable pressing column units, and there are n sets of retractable pressing column units. The column units are evenly arranged around the outside of the rotatable central cylinder; the special equipment for winding multi-rhomboid coils to form hollow cup motor coils includes a column-column aligned state, and when the special equipment for winding multi-rhomboid coils to form hollow cup motor coils is in the column-column aligned state, each group of retractable pressure column units is set directly opposite one of the retractable positioning columns; the synchronous pressure coil device includes: a front pressure coil fixing plate, a retractable pressure coil unit, an upper lifting ring plate, and an upper lifting power component; the retractable pressure coil unit is installed on the lower part of the front pressure coil fixing plate, and the upper lifting ring plate is connected to the front pressure coil fixing plate. The coil fixing plate is vertically slidably connected; the retractable coil pressing unit includes: a three-pressure point mounting plate, upper driven force-bearing components and coil pressing heads respectively disposed at both ends of the three-pressure point mounting plate; the three-pressure point mounting plate is horizontally slidably connected to the upper lifting ring plate; the coil pressing head faces the central axis of the rotatable central cylinder, and an upper wedge-shaped active pressing block is provided on one side of the upper part of each upper driven force-bearing component, the upper wedge-shaped active pressing block is fixed to the upper lifting ring plate, and an inclined upper active pressing block is provided on the lower part of the upper wedge-shaped active pressing block near the upper driven force-bearing component. The upper active extrusion surface abuts against the upper driven force-bearing component; the upper lifting power component is connected to the upper lifting ring plate and is used to drive the upper lifting ring plate together with all the upper wedge-shaped active pressure blocks to descend, extruding the upper driven force-bearing component, and driving all the three-pressure point mounting plates carrying all the coil pressure heads to synchronously approach the rotatable central cylinder; the retractable pressure coil unit consists of n groups, and the n groups of retractable pressure coil units are evenly distributed around the central axis of the rotatable central cylinder, with the retractable pressure coil units and retractable pressure column units arranged alternately.

2. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to claim 1, characterized in that, The coil placement platform module further includes a fixed support plate and a movable lifting plate respectively arranged around the rotatable central cylinder; the fixed support plate includes a fixed plate body and n fixed pins fixed to the upper part of the fixed plate body, and the movable lifting plate includes a movable plate body and n movable pins fixed to the upper part of the movable plate body; the movable plate body is located below the fixed plate body; the n fixed pins are evenly arranged around the rotatable central cylinder, and the n movable pins are evenly arranged around the rotatable central cylinder, with the movable pins located near the fixed pins on the rotatable central cylinder. On one side, and each of the fixed pins has a corresponding movable pin on one side; the movable lifting plate includes an upward state and a downward state; when the movable lifting plate is in the upward state, the movable pin penetrates the main body of the fixed plate, and each movable pin and a fixed pin located on one side of it together form a coil slot, each coil slot is used to clamp and fix an arc-shaped sheet-like rhomboid coil; when the movable lifting plate is in the downward state, the top of the movable pin is lower than the upper surface of the main body of the fixed plate, and a coil winding channel is formed between the fixed pin and the rotatable central cylinder.

3. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to claim 2, characterized in that, The coil winding channel is generally annular, and the bottom surface of the coil winding channel is flat. The main body of the movable disc is generally annular, and the movable lifting disc also includes a material ejection ring fixed to the upper inner side of the main body of the movable disc and surrounding the rotatable central cylinder. The material ejection ring is generally annular and is slidably connected to the rotatable central cylinder. When the movable lifting disc is in the descending state, the top surface of the material ejection ring is lower than the upper surface of the fixed disc main body. When the movable lifting disc is in the ascending state, the top surface of the material ejection ring is higher than the upper surface of the fixed disc main body.

4. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to claim 3, characterized in that, The coil placement platform module further includes a lifting power source for driving the movable lifting plate to switch between the rising and falling states; the lifting power source includes: a lowering drive spring, a guide plate, and a lateral telescopic power unit; the lateral telescopic power unit includes a wedge and a lateral telescopic drive; the lowering drive spring is located between the fixed plate body and the movable plate body; the guide plate is fixed to the lower part of the fixed plate body, and the lower outer side of the guide plate is a driven drive surface, which is a cone shape with a smaller bottom and a larger top; the upper part of the wedge has an active drive surface that abuts against the driven drive surface, and the active drive surface is an inclined surface that matches the driven drive surface; the lateral telescopic drive is installed laterally on one side of the guide plate, and the lateral telescopic drive is connected to the wedge to drive the wedge to extend and retract; a rolling element is embedded on the driven drive surface and is tactilely connected to the wedge, and the active drive surface abuts against the driven drive surface through the rolling element; the number of lateral telescopic power units is m sets, where m is 2 or 3, and the m sets of lateral telescopic power units are evenly distributed on the outer side of the guide plate.

5. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to any one of claims 1-4, characterized in that, The rotatable central cylinder is cylindrical in shape. N sliding holes are circumferentially arranged on the side wall of the rotatable central cylinder. A retractable positioning post is slidably connected within each sliding hole. The end of the retractable positioning post furthest from the central axis of the rotatable central cylinder is the positioning end. The coil placement platform module includes a positioning state and a retraction state. When the coil placement platform module is in the positioning state, the positioning ends of all the retractable positioning posts extend out of the outer side wall of the rotatable central cylinder. When the coil placement platform module is in the retraction state, all the positioning ends are received within the sliding holes. The coil placement platform module also includes a central abutment rod with one end extending into the rotatable central cylinder. The central abutment rod includes a pushing section that is shaped like a frustum of a cone. The pushing section is used to push all the retractable positioning posts out of the sliding holes, thus positioning the coil placement platform module in the positioning state. The n sliding holes are located at the same height on the rotatable central cylinder and are evenly distributed around the central axis of the rotatable central cylinder.

6. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to claim 5, characterized in that, The central abutment also includes a sliding section fixed to the lower part of the pushing section and a connecting section fixed to the lower part of the sliding section; both the pushing section and the sliding section are located inside the rotatable central cylinder, and the connecting section is located below the rotatable central cylinder. The pushing section is generally shaped like a frustum of a cone, smaller at the top and larger at the bottom; the sliding section is cylindrical and slidably connected to the inner wall of the rotatable central cylinder; the coil placement platform module also includes a telescopic drive connected to the connecting section and used to drive the central abutment to slide along the axial direction of the rotatable central cylinder; the end of the telescopic positioning post away from the positioning end is the abutment end; the coil placement platform module is located in the... In the positioning state, the upper part of the sliding section abuts against the abutting end; the retractable positioning column includes a connected positioning main body section and a column head section; the positioning main body section is cylindrical in shape, the column head section is cylindrical in shape, the positioning main body section and the column head section are coaxially arranged, and the diameter of the column head section is larger than the diameter of the positioning main body section; the column head section is located inside the rotatable central cylinder, and the positioning main body section is slidably connected to the sliding hole; the side of the column head section away from the positioning main body section is the positioning end; the side of the positioning main body section away from the column head section is the abutting end; the positioning end and the outer surface of the column head section are connected by an arc surface transition.

7. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to claim 6, characterized in that, The central abutment also includes a spring-loaded section fixed to the top of the pushing section, and the lower part of the spring-loaded section is provided with a raised support step ring; the coil placement platform module also includes a locking head unit, which includes: a pressure plate, a compression spring, and a spring pressure ring; the pressure plate is fixed to the top of the spring-loaded section; the spring pressure ring is generally a downward-opening circular cap, the upper part of the spring pressure ring is movably sleeved on the support step ring, the inner side of the spring pressure ring and the outer side of the spring-loaded section form a locking gap, and the bottom of the outer side of the spring pressure ring has an inclined guide surface; the compression spring is sleeved on the spring-loaded section, and the two ends of the compression spring abut against the pressure plate and the spring pressure ring respectively; the coil placement platform module also includes a transition state, when the coil placement platform module is in the transition state, the compression spring is in a compressed state under the squeezing action of the locking head section; when the coil placement platform module is in the unloading state, the compression spring is in a relaxed state, and the locking head section is locked in the locking gap.

8. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to any one of claims 1-4, characterized in that, The synchronous pressure column device further includes: a front pressure positioning component fixing plate, a lower lifting ring plate, and a lower lifting power component; the retractable pressure column unit is installed on the upper part of the front pressure positioning component fixing plate, and multiple sets of the retractable pressure column units are arranged around the rotatable central cylinder; the lower lifting ring plate is slidably connected to the front pressure positioning component fixing plate vertically; the retractable pressure column unit includes: a double pressure point mounting plate, a lower driven force-bearing component and a positioning component pressure head respectively disposed at both ends of the double pressure point mounting plate; the double pressure point mounting plate is slidably connected to the lower lifting ring plate horizontally; the positioning component pressure head faces the rotatable center. Along the central axis of the cylinder, each of the lower driven force-bearing components has a lower wedge-shaped active pressure block on one side of its lower portion. The lower wedge-shaped active pressure block is fixed to the lower lifting ring plate. The lower part of the lower wedge-shaped active pressure block, near the lower driven force-bearing component, has an inclined lower active pressing surface that abuts against the lower driven force-bearing component. The lower lifting power component is connected to the lower lifting ring plate and is used to drive the lower lifting ring plate, along with all the lower wedge-shaped active pressure blocks, to rise together, pressing against the lower driven force-bearing component. This drives all the dual-pressure-point mounting plates, carrying all the positioning component pressure heads, to synchronously approach the cylinder. The rotatable central cylinder; the synchronous pressure column device further includes: a lower tension spring, a lower upright rod, and a fixed cover, the fixed cover being located above the front pressure positioning component fixing plate; the two ends of the lower upright rod being fixedly connected to the front pressure positioning component fixing plate and the fixed cover respectively; the two ends of the lower tension spring being connected to the fixed cover and the double pressure point mounting plate respectively; when all the double pressure point mounting plates synchronously move towards the center of the rotatable central cylinder, all the lower tension springs are stretched and accumulate a second elastic force, and the lower lifting power component drives the lower lifting ring plate together with all the lower wedge-shaped active pressure blocks. As they descend together, under the action of the second elastic force, all the dual-pressure point mounting plates carrying the positioning pressure heads synchronously move away from the center of the rotatable central cylinder; the lower driven force-bearing component is a second rotating wheel that is rotatably connected to the dual-pressure point mounting plates; the outer side of the second rotating wheel abuts against the lower active extrusion surface; the front pressure positioning fixing plate is generally in the shape of a circular ring plate; the lower lifting ring plate is generally in the shape of a circular ring plate coaxially arranged with the front pressure positioning fixing plate, and the lower lifting ring plate is sleeved on the outside of the front pressure positioning fixing plate; the lower wedge-shaped active pressure block is fixed to the upper part of the lower lifting ring plate.

9. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to claim 8, characterized in that, The front pressure coil fixing plate is generally in the shape of a circular ring, with a feed inlet at the top center; the upper lifting ring plate is generally in the shape of a circular ring coaxially arranged with the front pressure coil fixing plate, and the upper lifting ring plate is sleeved on the outside of the front pressure coil fixing plate, and the upper wedge-shaped active pressure block is fixed to the lower part of the upper lifting ring plate; the included angle between any group of the retractable pressure coil units and the two adjacent retractable pressure column units is the same.

10. The special equipment for forming hollow cup motor coils by rolling multi-rhomboid coils according to claim 9, characterized in that, The dual-pressure point mounting plate has a pressure member mounting boss on the top side near the rotatable central cylinder. The pressure member mounting boss has a recessed positioning groove on the side near the rotatable central cylinder, and a screw mounting groove communicating with the positioning groove on the side away from the rotatable central cylinder. The positioning member pressure head includes: a pin sleeve, a pressure pin, a second compression spring, and a connecting adjusting screw. One end of the pin sleeve is inserted into the positioning groove and positioned by it. The connecting adjusting screw passes through the screw mounting groove and extends into the pin sleeve, threadedly connected to it. One end of the pressure pin is located inside the pin sleeve and is slidably connected to it. The other end of the pressure pin extends out of the pin sleeve and faces the rotatable central cylinder. The second compression spring is located inside the pin sleeve, and both ends of the second compression spring abut against the pressure pin and the connecting adjusting screw, respectively.

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