Polygonal coil winding die

Abstract

The utility model provides a polygonal coil winding mould which comprises a first clamping plate and a second clamping plate which are detachably connected, a plurality of detachable or movable supporting assemblies are arranged between the first clamping plate and the second clamping plate, and the supporting assemblies are distributed at intervals to form a non-closed polygon. Wherein each supporting assembly is located at one vertex angle of the non-closed polygon. According to the utility model, the plurality of supporting assemblies are arranged in a discrete manner to replace a traditional solid winding frame to bear coils, so that the weight of the mold is greatly reduced, and the cost is reduced; in addition, the coil can be taken out from the inner side during demolding through the multiple supporting assemblies, and the coil demolding difficulty is greatly reduced.

Description

Technical Field

[0001] The utility model relates to a mold, in particular to a polygonal coil winding mold. Background Art

[0002] As electric motors gradually replace traditional fuel-powered engines as the primary power output device in society, coils are essential components of electric motors, serving as the electrical circuits for inputting and outputting electrical energy. Coil production and processing require an internally supported mold, known as a coil winding mold. During winding, the wire is wound onto the coil winding mold with a predetermined number of turns and a specific winding pattern. During the winding process, each turn must be tightly packed and maintained with appropriate tension to ensure overall coil strength and conductor density, thereby improving the motor's slot fill rate and power density. To address the issue of insufficient tension during traditional manual coil winding, the combination of a winding machine and a coil winding mold has gained increasing attention. Specifically, the winding machine rotates the coil winding mold via a rotating shaft, allowing the wire to be wound onto the winding mold mechanism. The mold must then be removed, the coil removed, and the mold mechanism reattached to the rotating shaft for the next winding cycle.

[0003] Traditional coil winding molds are solid structures. When a coil is wound onto the coil winding mold using a winding machine, the high tension forces force the coil tightly against the mold, making it difficult to remove the coil from the mold. Furthermore, traditional solid coil winding molds consume a lot of material and are heavy, increasing wear and tear on the winding machine, hindering winding costs and maintenance.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0005] The utility model aims to address the deficiencies of the prior art and thus provide a polygonal coil winding die that is easy to demould.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a polygonal coil winding mold, comprising a first clamping plate and a second clamping plate that are detachably connected, a plurality of detachable or movable support components are arranged between the first clamping plate and the second clamping plate, and the plurality of support components are arranged at intervals to form a non-closed polygon, wherein each support component is located at a vertex angle of the non-closed polygon.

[0007] Furthermore, each supporting assembly is a polygonal supporting plate, and a vertex angle of the polygonal supporting plate serves as a vertex angle of the non-closed polygon.

[0008] Furthermore, each supporting assembly is a polygonal supporting frame, and one vertex angle of the polygonal supporting frame serves as the vertex angle of the non-closed polygon.

[0009] Furthermore, each supporting assembly is an L-shaped bracket, and the top corner of the L-shaped bracket is arranged outward as the top corner of the non-closed polygon.

[0010] Furthermore, each supporting assembly is a cylinder, and the cylinder is vertically installed at the top corner of the non-closed polygon.

[0011] Furthermore, the multiple support components include at least two of a polygonal support plate, a polygonal support frame, an L-shaped bracket, and a cylinder, wherein one vertex angle of the polygonal support plate serves as the vertex angle of the non-closed polygon, one vertex angle of the polygonal support frame serves as the vertex angle of the non-closed polygon, and the vertex angle of the L-shaped bracket is set outward as the vertex angle of the non-closed polygon; each support component is a cylinder, and the cylinder is vertically installed at the vertex angle of the non-closed polygon.

[0012] Furthermore, a polygonal limiting groove adapted to the shape of the non-closed polygon is provided on the first clamping plate and / or the second clamping plate, and each supporting assembly is correspondingly installed at a vertex corner of the polygonal limiting groove.

[0013] Furthermore, the support assembly is threadedly connected or snap-fitted to the limiting groove.

[0014] Furthermore, a slide rail is provided in the limiting groove, a slider movable along the slide rail is provided in the slide rail, a locking assembly is provided on the slider, and the supporting assembly is provided on the slider.

[0015] Furthermore, the first splint and the second splint are both polygonal fixed plates with the same shape as the non-closed polygon, and positioning holes are provided on the first splint and the second splint. The first splint and the second splint are fixed together by fastening bolts and screws passing through the positioning holes.

[0016] The present invention has substantial features and progress compared to the prior art. Specifically, the present invention proposes a polygonal coil winding mold, which is composed of a non-closed polygon with a plurality of discrete support components. When in use, it is convenient to remove each support component from the gap between the support components, thereby facilitating the demoulding of the entire coil, and solving the problem of difficult demoulding of traditional winding molds; further, the support component can be set as a hollow polygonal support frame, L-shaped bracket and cylinder, which has the advantages of light weight and less consumables. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is an exploded view of a structure of the polygonal coil winding mold described in the present invention.

[0018] FIG2( a ) is a structural example of a first embodiment of the support assembly.

[0019] FIG2( b ) is another structural example of the first embodiment of the support assembly.

[0020] Figure 3 This is a structural example of the second embodiment of the support component.

[0021] Figure 4 This is a structural example of the third embodiment of the support component.

[0022] Figure 5 This is a structural example of the fourth embodiment of the support component.

[0023] Figure 6 This is an example of the structure of the first splint in Example 7.

[0024] Figure 7 This is an example of the structure of the second splint in Example 7.

[0025] Figure 8 This is a schematic diagram of the installation of the first clamping plate and four L-shaped brackets in Example 7.

[0026] Figure 9 Schematic diagram of the positions of the square coil and the square coil winding mold in Example 7.

[0027] Figure 10 This is a schematic diagram of the positions of the square coil, the first clamping plate, and the four L-shaped brackets in Example 7.

[0028] Figure 11 This is an example of the structure of the first splint in Example 8.

[0029] Figure 12 This is an example of the structure of the six L-shaped brackets described in Example 8.

[0030] Figure 13 This is a schematic diagram of the installation of the first clamping plate and six L-shaped brackets in Example 8.

[0031] Figure 14 Schematic diagram of the positions of the regular hexagonal coil and the regular hexagonal coil winding mold in Example 8.

[0032] Figure 15 This is an example of the structure of the first splint in Example 9.

[0033] Figure 16 This is a schematic diagram of the installation of the first clamping plate and four L-shaped brackets in Example 9.

[0034] In the figure: 1. First clamping plate; 2. Support assembly; 3. Second clamping plate; 4. Polygonal coil; 5. Limiting groove; 6. Mold fixing threaded hole; 7. Fixing hole; 8. Support assembly mounting hole; 9. Threaded through hole; 10. Threaded mounting hole; 11. Slide rail. DETAILED DESCRIPTION

[0035] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0036] Example 1

[0037] This embodiment provides a polygonal coil winding mold, such as Figure 1 As shown, it includes a first splint 1 and a second splint 3, and a plurality of detachable or movable support components 3 are arranged between the first splint 1 and the second splint 3. The plurality of support components 3 are arranged at intervals to form a non-closed polygon, wherein each support component 3 is located at a vertex angle of the non-closed polygon to provide a coil bearing surface.

[0038] It can be understood that the first clamping plate 1 and the second clamping plate 3 are both polygonal fixing plates with the same shape as the non-closed polygon, which is convenient for subsequent winding.

[0039] Specifically, the first clamping plate 1 and / or the second clamping plate 3 are provided with a limiting groove 5, and the support assembly 3 is mounted within the limiting groove 5. Furthermore, the limiting groove 5 is a polygonal limiting groove 5 adapted to the non-closed polygonal shape, facilitating the positioning of multiple support assemblies 3. It should be noted that, due to the presence of the limiting groove 5, the width of the polygonal coil 4 formed by winding is equal to the width of each support assembly 3 minus the depth of the limiting groove 5 on the first clamping plate 1 and / or the second clamping plate 3. Specifically, when only the first clamping plate 1 has the limiting groove 5, and the support assembly 3 is mounted within the limiting groove 5, the width of the polygonal coil 4 formed by winding is equal to the width of each support assembly 3 minus the depth of the limiting groove 5 on the first clamping plate 1. Similarly, when only the second clamping plate 3 has the limiting groove 5, and the support assembly 3 is mounted within the limiting groove 5, the width of the polygonal coil 4 formed by winding is equal to the width of each support assembly 3 minus the depth of the limiting groove 5 on the second clamping plate 3.

[0040] Furthermore, when there are limiting grooves 5 on the first clamping plate 1 and the second clamping plate 3, the two ends of the support assembly 3 are respectively installed in the limiting grooves 5 on the first clamping plate 1 and the second clamping plate 3. At this time, the width of the polygonal coil 4 formed by winding is equal to the width of each support assembly 3 minus the depth of the limiting grooves 5 on the first clamping plate 1 and the second clamping plate 3.

[0041] Since a polygon is a plane figure composed of three or more line segments connected end to end, this embodiment uses a square as an example for easy understanding. Figure 1 As shown, the polygonal coil winding mold includes a first clamping plate 1 and a second clamping plate 3, both of which are square clamping plates. Square retaining grooves 5 are provided on the first clamping plate 1 and / or the second clamping plate 3. Multiple detachable or removable support assemblies 3 are spaced apart at the top corners of the square retaining grooves 5 on the first clamping plate 1 and / or the second clamping plate 3, forming a non-closed polygon.

[0042] During use, the first clamping plate 1 and the second clamping plate 3 need to be fixedly connected, so positioning holes are provided on both the first clamping plate 1 and the second clamping plate 3. The polygonal coil winding mold needs to be fixedly connected to the flange of the output shaft of an external winding machine, so mold fixing threaded holes 6 are provided on the first clamping plate 1 or the second clamping plate 3 to fix the connection with the flange of the output shaft of the external winding machine.

[0043] For ease of understanding, this embodiment takes the example of fixing the first clamping plate 1 to the flange of the output shaft of the external winding machine to illustrate the steps of using the polygonal coil winding mold:

[0044] The first splint 1 is provided with a mold fixing threaded hole 6. Before use, the first splint 1 is fixedly connected to the flange of the output shaft of the external winding machine by tightening bolts, screws and the mold fixing threaded hole 6; then multiple support components 3 are respectively installed at the top corners of the polygonal limiting groove on the first splint 1 to form a non-closed polygon; finally, the second splint 3 is fixedly connected to the first splint 1 by tightening bolts and screws through the fixing holes 7 on the second splint 3 and the first splint 1. The first splint 1, the second splint 3 and the non-closed polygon are all fixedly connected; the rotation of the non-closed polygon is achieved by driving the rotation of the output shaft of the external winding machine, thereby realizing automatic winding to form a polygonal coil 4.

[0045] After use, remove the fastening bolts and screws in the fixing holes 7 on the second clamping plate 3 and the first clamping plate 1, thereby disassembling the second clamping plate 3 from the first clamping plate 1, and then move each supporting component 3 away from the polygonal coil 4 in a detachable or movable manner, thereby realizing the demolding of the polygonal coil 4, solving the problem of demolding difficulty in traditional winding molds.

[0046] It is understood that because each support component 3 is discretely arranged, i.e., there are gaps between each support component 3, the resulting structure is a non-enclosed polygonal structure, i.e., a non-solid polygonal structure. This facilitates the removal or removability of each support component 3 from the polygonal coil 4, thereby indirectly achieving demolding of the polygonal coil 4. Furthermore, compared to a solid polygonal winding frame, the non-enclosed polygonal structure in this embodiment has the advantages of being lightweight and requiring less consumables.

[0047] Example 2

[0048] This embodiment provides a first implementation structure of the support assembly 3. In this implementation structure, each support assembly 3 is a polygonal support plate, one vertex of the polygonal support plate serves as the vertex of the non-closed polygon, and the two side lines on both sides of the vertex of the polygonal support plate serve as the partial coil-bearing surface of the non-closed polygon.

[0049] FIG2( a ) shows a structure in which the polygonal support plate is a triangular plate, and FIG2( b ) shows a structure in which the polygonal support plate is a quadrilateral plate.

[0050] In other embodiments, the polygonal support plate may also be a pentagon, etc., as long as it can provide a vertex angle for the non-closed polygon.

[0051] Example 3

[0052] This embodiment provides a second implementation structure of the support assembly 3. In this implementation structure, each support assembly 3 is a polygonal support frame, one vertex of the polygonal support frame serves as the vertex of the non-closed polygon, and the two side lines on both sides of the vertex of the polygonal support frame serve as the partial coil bearing surface of the non-closed polygon.

[0053] like Figure 3 The polygonal support frame is shown as a triangular frame. In other embodiments, the polygonal support frame can also be a quadrilateral, a pentagon, etc., as long as it can provide a vertex angle for the non-closed polygon.

[0054] It can be understood that, compared with Example 2, this embodiment is lighter and uses less consumables.

[0055] Example 4

[0056] This embodiment provides a third implementation structure of the support assembly 3. In this implementation structure, each support assembly 3 is an L-shaped bracket, and the top corner of the L-shaped bracket is set outward as the top corner of the non-closed polygon, specifically as follows Figure 4 As shown, similarly, the two side lines of the L-shaped bracket serve as the partial coil bearing surface of the non-closed polygon.

[0057] It can be understood that, compared with Example 3, this embodiment is lighter and requires less consumables.

[0058] Example 5

[0059] This embodiment provides a fourth implementation structure of the support assembly 3 .

[0060] like Figure 5 As shown, each support assembly 3 is a cylinder, mounted vertically at the vertex of the non-enclosed polygon, serving as the vertex of the non-enclosed polygon. Each cylinder combines with the adjacent cylinders on either side to form a portion of the coil-bearing surface of the non-enclosed polygon. This implementation is easier to disassemble than other implementations.

[0061] Example 6

[0062] This embodiment provides a fifth implementation structure of the support assembly 3 .

[0063] Multiple support components 3 include at least two types of polygonal support plates, polygonal support frames, L-shaped brackets, and cylinders, wherein one vertex angle of the polygonal support plate serves as the vertex angle of the non-closed polygon, one vertex angle of the polygonal support frame serves as the vertex angle of the non-closed polygon, and the vertex angle of the L-shaped bracket is set outward as the vertex angle of the non-closed polygon; the cylinder is vertically installed at the vertex angle of the non-closed polygon.

[0064] The specific configuration of each supporting assembly 3 can be referred to in Examples 2-5, and will not be described in detail here.

[0065] Example 7

[0066] This embodiment provides a first mounting structure for the support assembly 3. In this mounting structure, the support assembly 3 is detachably mounted within the retaining groove 5. In practice, this detachable mounting structure can be achieved through threaded connections, bayonet connections, snap-fit ​​connections, and key connections. Each connection method has different advantages and disadvantages. The most suitable connection method can be selected based on specific needs to ensure reliable and convenient connection.

[0067] For ease of understanding, this embodiment takes the example where the first plywood 1 and the second plywood 3 are both square plywoods with the same structure, each support assembly 3 is an L-shaped bracket, and each L-shaped bracket is threadedly connected between the first plywood 1 and the second plywood 3, and details the detachable principle of the support assembly 3.

[0068] like Figure 6As shown, a square limiting groove 5 is provided on one side of the first splint 1, and a mold fixing threaded hole 6 is provided in the middle part of the square limiting groove 5; a plurality of fixing holes 7 are provided near the four top corners of the square limiting groove 5, and threaded through holes 9 are provided at the top corners of the L-shaped bracket corresponding to the fixing holes 7; at least one threaded mounting hole 10 is also provided on each side of the L-shaped bracket, and a support component mounting hole 3 is provided in the square limiting groove 5 corresponding to the threaded mounting hole 10 on the L-shaped bracket.

[0069] like Figure 7 As shown, a square limiting groove 5 is provided on one side of the second clamping plate 3 , and a plurality of fixing holes 7 are provided near the four corners of the square limiting groove 5 .

[0070] When installing the square coil winding mold, first fix the first clamping plate 1 to the flange of the output shaft of the external winding machine by fastening bolts and screws and the mold fixing threaded holes 6; then, fasten the four L-shaped brackets to the first clamping plate 1 by fastening bolts and screws through the threaded mounting holes 10 on the L-shaped bracket and installing them into the support assembly mounting holes 3 on the first clamping plate 1. Figure 8 As shown; Then, the first clamping plate 1, the L-shaped bracket and the second clamping plate 3 are fixed as a whole by fastening bolts and screws through the fixing holes 7 on the first clamping plate 1, the threaded through holes 9 on the L-shaped bracket and the fixing holes 7 on the second clamping plate 3; Finally, the coil is wound layer by layer on the bearing surface formed by the square coil winding mold to form a square coil, as shown Figure 9 shown.

[0071] When demoulding the square coil winding mold, first remove the fastening bolts and screws in the fixing hole 7 on the first clamping plate 1, the threaded through hole 9 on the L-shaped bracket, and the fixing hole 7 on the second clamping plate 3, and remove the second clamping plate 3. At this time, the position of the square coil, the first clamping plate 1, and the four L-shaped brackets is as follows: Figure 10 Next, remove the fastening bolts and screws from the threaded mounting holes 10 of the L-shaped brackets and the support assembly mounting holes 3 on the first clamping plate 1, and remove the four L-shaped brackets from the first clamping plate 1. Then, remove the wound square coil and demold the coil. Finally, remove the fastening bolts and screws from the mold fixing threaded holes 6 of the first clamping plate 1 and remove the first clamping plate 1 from the flange of the external winding machine output shaft.

[0072] If the n-gonal coil is to be wound repeatedly, there is no need to repeatedly install and remove the second clamping plate 3, which effectively saves operation steps and operation time.

[0073] Example 8

[0074] This embodiment provides another structure of the polygonal coil winding mold. In this structure, the first clamping plate 1 and the second clamping plate 3 are both regular hexagonal clamping plates with the same structure, each support assembly 3 is an L-shaped bracket, and each L-shaped bracket is threadedly connected between the first clamping plate 1 and the second clamping plate 3.

[0075] like Figure 11-12 As shown, one side of the first clamping plate 1 is provided with a regular hexagonal limiting groove 5, and a mold fixing threaded hole 6 is provided in the middle of the regular hexagonal limiting groove 5; multiple fixing holes 7 are provided near the six corners of the regular hexagonal limiting groove 5. Threaded through holes 9 are provided at the corners of the L-shaped bracket corresponding to the fixing holes 7; each side of the L-shaped bracket is also provided with at least one threaded mounting hole 10, and support assembly mounting holes 3 are provided in the regular hexagonal limiting groove 5 corresponding to the threaded mounting holes 10 on the L-shaped bracket.

[0076] When installing the hexagonal coil winding mold, first fix the first clamping plate 1 to the flange of the output shaft of the external winding machine by fastening bolts and screws and the mold fixing threaded holes 6; then, fasten the six L-shaped brackets to the first clamping plate 1 by fastening bolts and screws through the threaded mounting holes 10 on the L-shaped bracket and installing them into the support assembly mounting holes 3 on the first clamping plate 1. Figure 13 As shown; then, by fastening bolts and screws through the fixing holes 7 on the first clamping plate 1, the threaded through holes 9 on the L-shaped bracket and the fixing holes 7 on the second clamping plate 3, the first clamping plate 1, the L-shaped bracket and the second clamping plate 3 are fixed as a whole; finally, the coil is wound layer by layer on the bearing surface formed by the square coil winding mold to form a regular hexagonal coil, as shown Figure 14 shown.

[0077] When demolding the hexagonal coil winding mold, first remove the fastening bolts and screws from the fixing holes 7 on the first clamping plate 1, the threaded through-holes 9 on the L-shaped bracket, and the fixing holes 7 on the second clamping plate 3, and remove the second clamping plate 3. Next, remove the fastening bolts and screws from the threaded mounting holes 10 of the L-shaped bracket and the support assembly mounting holes 3 on the first clamping plate 1, and remove the four L-shaped brackets from the first clamping plate 1. Then, remove the wound hexagonal coil to complete the demolding of the coil. Finally, remove the fastening bolts and screws from the mold fixing threaded holes 6 of the first clamping plate 1 and remove the first clamping plate 1 from the flange of the external winding machine output shaft.

[0078] Example 9

[0079] This embodiment provides a second installation structure for the support assembly 3. In this structure, a slide rail 11 is provided in the limiting groove 5, a slider movable along the slide rail 11 is provided in the slide rail 11, a locking assembly is provided on the slider, and the support assembly 3 is provided on the slider.

[0080] For ease of understanding, the following description will be made using the example where both the first clamping plate 1 and the second clamping plate 3 are square clamping plates of identical structure, and the first clamping plate 1 is fixedly connected to the flange of the output shaft of the external winding machine. It should be noted that the provision of a locking assembly on the slider is prior art, and when in use, a slider with a locking function can be selected, so further explanation will not be given here.

[0081] like Figure 15 As shown, a plurality of fixing holes 7 are provided near the four top corners of the square limiting groove 5 of the first splint 1, and four slide rails 11 are also provided in the square limiting groove 5. Each slide rail 11 is provided on the line connecting the center of gravity of the square limiting groove 5 and a fixing hole 7, and the length is less than the length of the line connecting the center of gravity of the square limiting groove 5 and a fixing hole 7.

[0082] The structure of the second splint 3 still adopts Figure 7 The support assembly 3 still adopts Figure 4 The L-shaped bracket structure shown is different in that the bottom of the L-shaped bracket is fixedly connected to the slider.

[0083] When the initial state is set, the four L-shaped brackets are respectively set in the four slide rails 11 on the first clamping plate 1 through the sliders, and are all located on the slide rails 11 close to the center of gravity of the square limiting groove 5.

[0084] When installing the square coil winding mold, first fix the first clamping plate 1 to the flange of the output shaft of the external winding machine by tightening the bolts, screws and mold fixing threaded holes 6; then loosen the locking assembly, push the slider to move outward along the slide rail 11, and drive the L-shaped bracket to move until the L-shaped bracket contacts the edge of the square limiting groove 5 of the first clamping plate 1, stops moving, and fixes the slider again by the locking assembly. At this time, the position between the L-shaped bracket and the first clamping plate 1 is as shown in FIG. Figure 16 shown.

[0085] By fastening bolts and screws through the fixing holes 7 on the first clamping plate 1, the threaded through holes 9 on the L-shaped bracket and the fixing holes 7 on the second clamping plate 3, the first clamping plate 1, the L-shaped bracket and the second clamping plate 3 are fixed as a whole; finally, the coils are wound layer by layer on the bearing surface formed by the square coil winding mold to form a square coil.

[0086] When demolding the square coil winding mold, first remove the fastening bolts and screws in the fixing hole 7 on the first clamping plate 1, the threaded through hole 9 on the L-shaped bracket, and the fixing hole 7 on the second clamping plate 3, and remove the second clamping plate 3; then loosen the locking assembly and push the slider to move inward along the slide rail 11 until the L-shaped bracket returns to its initial position, stop moving, and secure the slider again with the locking assembly; then remove the wound square coil to complete the coil demolding. Finally, remove the fastening bolts and screws in the mold fixing threaded hole 6 of the first clamping plate 1 and remove the first clamping plate 1 from the flange of the output shaft of the external winding machine.

[0087] It can be understood that in some other embodiments, the L-shaped bracket is detachably connected to the slider. When in use, the L-shaped bracket is installed on the slider; when not in use, the L-shaped bracket is removed from the slider.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A polygonal coil winding mold, comprising a first clamping plate and a second clamping plate that are detachably connected, characterized in that: A plurality of detachable or movable support components are arranged between the first clamping plate and the second clamping plate. The plurality of support components are arranged at intervals and distributed to form a non-closed polygon, wherein each support component is located at a vertex angle of the non-closed polygon.

2. The polygonal coil winding mold according to claim 1, characterized in that: Each supporting assembly is a polygonal supporting plate, and one vertex angle of the polygonal supporting plate serves as the vertex angle of the non-closed polygon.

3. The polygonal coil winding mold according to claim 1, characterized in that: Each supporting assembly is a polygonal supporting frame, and one vertex angle of the polygonal supporting frame serves as the vertex angle of the non-closed polygon.

4. The polygonal coil winding mold according to claim 1, characterized in that: Each supporting assembly is an L-shaped bracket, and the top corners of the L-shaped bracket are arranged outward as the top corners of the non-closed polygon.

5. The polygonal coil winding mold according to claim 1, characterized in that: Each supporting assembly is a cylinder, and the cylinder is vertically installed at the vertex of the non-closed polygon.

6. The polygonal coil winding mold according to claim 1, characterized in that: The multiple support components include at least two types of polygonal support plates, polygonal support frames, L-shaped brackets, and cylinders, wherein one vertex angle of the polygonal support plate serves as the vertex angle of the non-closed polygon, one vertex angle of the polygonal support frame serves as the vertex angle of the non-closed polygon, and the vertex angle of the L-shaped bracket is set outward as the vertex angle of the non-closed polygon; the cylinder is vertically installed at the vertex angle of the non-closed polygon.

7. The polygonal coil winding die according to any one of claims 1 to 6, characterized in that: The first clamping plate and / or the second clamping plate are provided with a polygonal limiting groove adapted to the shape of the non-closed polygon, and each supporting assembly is correspondingly installed at a vertex corner of the polygonal limiting groove.

8. The polygonal coil winding mold according to claim 7, characterized in that: The support assembly is threadedly connected or snap-fitted to the limiting groove.

9. The polygonal coil winding mold according to claim 7, characterized in that: A slide rail is provided in the limiting groove, a slider movable along the slide rail is provided in the slide rail, a locking assembly is provided on the slider, and the supporting assembly is provided on the slider.

10. The polygonal coil winding die according to claim 8 or 9, characterized in that: The first splint and the second splint are both polygonal fixing plates with the same shape as the non-closed polygon. Positioning holes are provided on the first splint and the second splint. The first splint and the second splint are fixed together by fastening bolts and screws passing through the positioning holes.

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