A lead-out self-adhesive coil winding device

Abstract

The present application discloses a lead-outward self-adhesive coil winding device, comprising an upper jig and a lower jig arranged relatively; the lower jig comprises a lower die end cover, a core mechanism, a lower demoulding mechanism, a lower bending mechanism, a wire pressing mechanism, a tail lead clamp and a lower die base; the lower die end cover is provided with a first through hole, a second through hole, a third through hole, a fourth through hole, and a plurality of first heat dissipation through holes, the side of the lower die end cover facing the upper jig comprises a first plane, a first inclined surface located on the periphery of the first plane, and the first through hole, the second through hole, the third through hole, the fourth through hole and the first heat dissipation through hole are all located on the first plane; the core mechanism comprises a square die core; the upper jig comprises an upper die end cover, a cutter mechanism, an upper demoulding mechanism and an upper die base; the upper die end cover is provided with a fifth through hole and a second heat dissipation through hole, and the side of the upper die end cover facing the lower jig comprises a second plane and a second inclined surface located on the periphery of the second plane. The lead-outward self-adhesive coil winding device can avoid multi-station processing of products, directly saving labor and equipment costs.

Description

Technical Field

[0001] The present invention relates to the technical field of winding mechanisms, and in particular to a lead-outward-turned self-adhesive coil winding device. Background Art

[0002] The most common existing wireless charging coils are circular coils, and square wireless charging coils are relatively rare due to the special structure. The most common products used in the receiving end of wireless charging coils are mobile phones, watches, cars, headphones, etc. With the development and iterative updates of communication technology, the structural process of electronic products has also been updated. At present, a single circular wireless charging coil cannot meet the product structure requirements. Summary of the invention

[0003] In view of the deficiencies in the prior art, one purpose of this specification is to provide a lead-outward self-adhesive coil winding device that can avoid multi-station processing of products and directly save labor and equipment costs.

[0004] To achieve the above-mentioned purpose, the embodiment of the present specification provides a lead-outward self-adhesive coil winding device, comprising an upper jig and a lower jig arranged opposite to each other;

[0005] The lower fixture comprises a lower die end cover, a core mechanism, a lower demoulding mechanism, a lower bending mechanism, a wire pressing mechanism, a tail lead clamp and a lower die base; the lower die end cover is fixedly connected to the lower die base; the core mechanism, the lower demoulding mechanism, the lower bending mechanism and the wire pressing mechanism are all movably connected to the lower die base and can move axially; the tail lead clamp is fixedly connected to the side of the lower die end cover; the lower die end cover is provided with a first through hole for part of the core mechanism to pass through, a plurality of second through holes for part of the lower demoulding mechanism to pass through, a third through hole for part of the lower bending mechanism to pass through, and a third through hole for part of the The wire pressing mechanism is provided with a fourth through hole and a plurality of first heat dissipation through holes. The side of the lower mold end cover facing the upper fixture includes a first plane and a first inclined surface located on the circumference of the first plane. The first through hole, the second through hole, the third through hole, the fourth through hole and the first heat dissipation through hole are all located on the first plane. The second through hole and the first heat dissipation through hole are arranged at intervals on the circumference of the first through hole. The fourth through hole is located between the first through hole and the tail lead clip, and the third through hole is located between the first through hole and the fourth through hole. The core mechanism includes a square core that is provided through the first through hole.

[0006] The upper fixture comprises an upper die end cover, a cutter mechanism, an upper demolding mechanism and an upper die base; the upper die end cover is fixedly connected to the upper die base; the upper demolding mechanism is movably connected to the upper die base and can move axially; the cutter mechanism is fixedly connected to the side of the upper die end cover and is aligned with the tail lead clamp; the upper die end cover is provided with a plurality of fifth through holes and a plurality of second heat dissipation through holes for part of the upper demolding mechanism to pass through, and a side of the upper die end cover facing the lower fixture comprises a second plane, a second inclined surface located on the circumferential side of the second plane, and the fifth through hole and the second heat dissipation through hole are located on the second plane; the fifth through hole and the second heat dissipation through hole are spaced apart in the circumferential direction; the first plane and the second plane are arranged opposite to each other, the first inclined surface and the second inclined surface are arranged opposite to each other, and in the direction from the center to the circumferential side, the distance between the first inclined surface and the second inclined surface gradually increases.

[0007] As a preferred embodiment, the mold core mechanism also includes a connecting rod fixedly arranged on the end of the square mold core away from the upper jig, the connecting rod is provided with a first limiting hole extending radially for a first connecting pin to pass through, the axial size of the first limiting hole is larger than the size of the first connecting pin, and the circumferential size of the first limiting hole is equal to the size of the first connecting pin; the first connecting pin is fixedly connected to the lower mold base; the surface of the square mold core is provided with a wire entry groove, the square mold core is fixedly connected to the connecting rod through an extension shaft, the size of the extension shaft is smaller than the size of the square mold core, and a first spring is provided on the outer sleeve of the extension shaft, and the first spring presses against between the square mold core and the connecting rod.

[0008] As a preferred embodiment, the lower demolding mechanism includes a plurality of lower demolding parts and two lower demolding ejector rods, wherein the plurality of lower demolding parts are passed through the second through holes and are arranged at intervals around the square mold core; the lower demolding parts and the lower demolding ejector rods are fixedly connected via a lower demolding seat; the lower demolding ejector rods are passed through the lower mold base, and a second spring is provided between the lower demolding seat and the lower end surface of the lower mold end cover.

[0009] As a preferred embodiment, the lower fixture further includes a lower die mounting seat, the lower die mounting seat is fixedly connected between the lower die base and the lower die end cover, and the extension shaft and the lower demolding ejector rod are passed through the lower die mounting seat.

[0010] As a preferred embodiment, the lower bending mechanism includes a lower bending pin and a lower bending top block which are fixedly connected, and the lower bending pin is passed through the third through hole; the lower bending top block is passed through the lower mold mounting seat, and a third spring is provided between the lower bending top block and the upper end surface of the lower mold base.

[0011] As a preferred embodiment, the wire crimping mechanism includes a wire crimping block and a wire crimping push rod fixedly connected to each other, the wire crimping block is passed through the fourth through hole; the upper end surface of the wire crimping block is provided with a plurality of first air holes, and the outer side surface of the wire crimping block is provided with a second air hole, and the plurality of first air holes are connected to the second air holes; the upper end surface of the wire crimping block is provided with a protrusion, the protrusion avoids the position of the first air hole and has a side parallel to the radial direction; the wire crimping push rod is passed through the lower mold mounting seat, and a fourth spring is provided between the wire crimping push rod and the lower end surface of the lower mold end cover; the wire crimping push rod and the lower bending push block are arranged parallel to the axial direction and are arranged opposite to the tail lead clamp.

[0012] As a preferred embodiment, the tail lead wire clamp includes a starting wire clamp, a tail wire clamp and a support pin, the starting wire clamp and the tail wire clamp are arranged opposite to each other, and the support pin is located between the starting wire clamp and the lower mold end cover; the tail lead wire clamp also includes a wire clamp mounting seat fixedly connected to the lower mold mounting seat, the support pin is fixedly installed on the wire clamp mounting seat, a fifth spring is provided between the starting wire clamp and the wire clamp mounting seat, and a sixth spring is provided between the tail wire clamp and the wire clamp mounting seat.

[0013] As a preferred embodiment, the upper jig also includes an upper mold mounting seat, which is fixedly connected between the upper mold base and the upper mold end cover; the upper jig also includes an upper bending mechanism, which is movably connected to the upper mold base and can move axially, and the upper mold end cover is provided with a sixth through hole for part of the upper bending mechanism to pass through; in the radial direction, the sixth through hole is located on the outside of the third through hole; the sixth through hole is located between the fifth through hole and the cutting mechanism.

[0014] As a preferred embodiment, the upper demoulding mechanism comprises a plurality of upper demoulding members and two upper demoulding ejector rods, wherein the plurality of upper demoulding members are inserted through the fifth through hole; the upper demoulding members and the upper demoulding ejector rods are fixedly connected through an upper demoulding seat; the upper demoulding ejector rods are inserted through the upper mold base and the upper mold mounting seat, and a seventh spring is provided between the upper demoulding seat and the lower end surface of the upper mold end cover;

[0015] The upper bending mechanism includes an upper bending pin, an upper bending top block and a driving shaft, the upper bending pin and the upper bending top block are fixedly connected, and the upper bending top block and the driving shaft are fixedly connected; the upper bending pin is passed through the sixth through hole; the upper bending top block is passed through the upper mold mounting seat, and the driving shaft is passed through the upper mold mounting seat and the upper mold base; the upper mold base is provided with a second limiting hole extending radially for the second connecting pin to pass through, the axial size of the second limiting hole is larger than the size of the second connecting pin, and the circumferential size of the second limiting hole is equal to the size of the second connecting pin; the second connecting pin is fixedly connected to the driving shaft.

[0016] As a preferred embodiment, the cutter mechanism includes a cutter mounting seat fixedly connected to the upper mold mounting seat, a lead cutter mounted on the cutter mounting seat, and an eighth spring pressed between the cutter mounting seat and the lead cutter, the lead cutter is provided with a third limiting hole for a third connecting pin to pass through, the third connecting pin is fixedly connected to the cutter mounting seat, the axial size of the third limiting hole is larger than the size of the third connecting pin, and the circumferential size of the third limiting hole is equal to the size of the third connecting pin.

[0017] Beneficial effects: The lead-outward self-adhesive coil winding device provided in this embodiment can realize the winding of a single-layer multi-turn square wireless charging coil by providing a core mechanism with a square core; the lead can be bent by providing a lower bending mechanism and an upper bending mechanism; the lead and the coil body can be bonded by providing a wire pressing mechanism; the spacing size of the two leads can be controlled by providing a tail lead clamp; the wire cutting function can be realized by providing a cutter mechanism, that is, the lead-outward self-adhesive coil winding device integrates winding, lead-outward bending, lead-adhesive coil body, control of the spacing size of the two leads, and wire cutting functions, which can avoid multi-station processing of products and directly save labor and equipment costs.

[0018] The lead-out self-adhesive coil winding device provided in this embodiment can wind a square coil formed by heating copper wire. The two tail leads of the square coil are led outward, maintaining the structural and process characteristics of the designed spacing size control, tangent length control, and bonding of the inner lead and the coil body. The square coil with two tail leads leading outward can be made by this lead-out self-adhesive coil winding device using a one-time molding process, which reduces the process of the coil's subsequent processes (such as bending the lead outward, fixing the inner lead with glue, and tangent process). The one-time molding process has great advantages and can directly save labor and equipment costs and improve equipment utilization. It is a great improvement relative to the improvement of product process technology, breaking through the original process links, and has reliability. It will effectively improve product quality, while also meeting the client's requirements for its products.

[0019] With reference to the following description and the accompanying drawings, the specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby.

[0020] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0021] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a structural schematic diagram of a lead-outward self-adhesive coil winding device provided in this embodiment;

[0024] Figure 2 It is a partial structural schematic diagram of an upper jig and a lower jig of a lead-outward-turned self-adhesive coil winding device provided in this embodiment when the upper jig and the lower jig are molded together;

[0025] Figure 3 A schematic diagram of an exploded structure of a lower fixture provided in this embodiment;

[0026] Figure 4 This is a schematic structural diagram of a lower die end cover provided in this embodiment;

[0027] Figure 5 A schematic structural diagram of a mold core mechanism provided in this embodiment;

[0028] Figure 6 It is a structural schematic diagram of a lower demoulding mechanism provided in this embodiment;

[0029] Figure 7 It is a structural schematic diagram of a lower bending mechanism provided in this embodiment;

[0030] Figure 8 It is a structural schematic diagram of a wire pressing mechanism provided in this embodiment;

[0031] Fig. 9 for Figure 8 A partially enlarged structural diagram of a medium voltage line block;

[0032] Fig.10 It is a structural schematic diagram of a tail lead clip provided in this embodiment;

[0033] Fig.11 A schematic diagram of the structure of an upper fixture provided in this embodiment;

[0034] Fig.12 It is a structural schematic diagram of an upper bending mechanism provided in this embodiment;

[0035] Fig.13 A schematic structural diagram of a cutter mechanism provided in this embodiment;

[0036] Fig.14 It is a structural schematic diagram of an upper demoulding mechanism provided in this embodiment.

[0037] Description of reference numerals:

[0038] 10. Lower fixture; 11. Lower mold end cover; 111. First through hole; 112. Second through hole; 113. Third through hole; 114. Fourth through hole; 115. First heat dissipation through hole; 116. First plane; 117. First inclined surface; 12. Core mechanism; 121. Square core; 122. Wire entry groove; 123. Connecting rod; 124. First limiting hole; 125. First connecting pin; 126. Extension shaft; 13. Lower demoulding mechanism; 131. Lower demoulding member; 132. Lower demoulding ejector; 133. Lower demoulding seat; 134, second spring; 14, lower bending mechanism; 141, lower bending pin; 142, lower bending top block; 15, wire pressing mechanism; 151, wire pressing block; 152, first vent hole; 153, second vent hole; 154, raised portion; 155, side; 156, wire pressing top rod; 16, tail lead clamp; 161, wire starting clamp; 162, tail wire clamp; 163, pin; 164, wire clamp mounting seat; 165, fifth spring; 166, sixth spring; 17, lower die base; 18, lower die mounting seat;

[0039] 20. Upper fixture; 21. Upper mold end cover; 211. Fifth through hole; 212. Sixth through hole; 213. Second heat dissipation through hole; 214. Second plane; 215. Second inclined surface; 22. Upper bending mechanism; 221. Upper bending pin; 222. Upper bending top block; 223. Drive shaft; 224. Second connecting pin; 23. Cutter mechanism; 231. Cutter mounting seat; 232. Lead cutter; 233. Third connecting pin; 24. Upper demoulding mechanism; 241. Upper demoulding member; 242. Upper demoulding ejector pin; 243. Upper demoulding seat; 244. Seventh spring; 25. Upper mold base; 251. Second limiting hole; 26. Upper mold mounting seat; 30. Bell mouth. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0041] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be another element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be another element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0043] See also Figures 1 to 14 The embodiment of the present application provides a lead-outward self-adhesive coil winding device, comprising an upper fixture 20 and a lower fixture 10 that are arranged opposite to each other.

[0044] Among them, Figure 1 and Figure 3 As shown, the lower fixture 10 includes a lower mold end cover 11, a core mechanism 12, a lower demoulding mechanism 13, a lower bending mechanism 14, a wire pressing mechanism 15, a tail lead clamp 16 and a lower mold base 17. The lower mold end cover 11 is fixedly connected to the lower mold base 17. The core mechanism 12, the lower demoulding mechanism 13, the lower bending mechanism 14, and the wire pressing mechanism 15 are all movably connected to the lower mold base 17 and can move axially. The tail lead clamp 16 is fixedly connected to the side of the lower mold end cover 11. The axial direction in this application is parallel to the vertical direction. In the vertical direction, the upper fixture 20 is located above the lower fixture 10.

[0045] like Figure 4As shown, the lower mold end cover 11 is provided with a first through hole 111 for part of the core mechanism 12 to pass through, a plurality of second through holes 112 for part of the lower demolding mechanism 13 to pass through, a third through hole 113 for part of the lower bending mechanism 14 to pass through, a fourth through hole 114 for part of the wire pressing mechanism 15 to pass through, and a plurality of first heat dissipation through holes 115. The side of the lower mold end cover 11 facing the upper fixture 20 includes a first plane 116 and a first inclined surface 117 located on the periphery of the first plane 116. The first through hole 111, the second through hole 112, the third through hole 113, the fourth through hole 114 and the first heat dissipation through hole 115 are all located on the first plane 116. The second through hole 112 and the first heat dissipation through hole 115 are arranged at intervals on the periphery of the first through hole 111. The fourth through hole 114 is located between the first through hole 111 and the tail lead clamp 16. The third through hole 113 is located between the first through hole 111 and the fourth through hole 114. The core mechanism 12 includes a square core 121 penetrating through the first through hole 111 .

[0046] like Figure 1 and Fig.11 As shown, the upper fixture 20 includes an upper die end cover 21, a cutter mechanism 23, an upper demolding mechanism 24 and an upper die base 25. The upper die end cover 21 is fixedly connected to the upper die base 25. The upper demolding mechanism 24 is movably connected to the upper die base 25 and can move in the axial direction. The cutter mechanism 23 is fixedly connected to the side of the upper die end cover 21 and is aligned with the tail lead clamp 16. The upper die end cover 21 is provided with a plurality of fifth through holes 211 and a plurality of second heat dissipation through holes 213 for part of the upper demolding mechanism 24 to pass through. The side of the upper die end cover 21 facing the lower fixture 10 includes a second plane 214 and a second inclined surface 215 located on the circumferential side of the second plane 214. The fifth through hole 211 and the second heat dissipation through hole 213 are located on the second plane 214. The fifth through hole 211 and the second heat dissipation through hole 213 are spaced apart in the circumferential direction. The first plane 116 and the second plane 214 are arranged opposite to each other, and the first inclined surface 117 and the second inclined surface 215 are arranged opposite to each other. In the direction from the center to the circumference, the distance between the first inclined surface 117 and the second inclined surface 215 gradually increases, so that Figure 2 As shown, when the upper jig 20 and the lower jig 10 are molded together, a bell mouth 30 is formed between the first bevel 117 and the second bevel 215 to guide the external hot air to the inside of the device, so that the copper wires arranged in the device can be heated better and faster and can be quickly arranged and bonded.

[0047] The lead-outward self-adhesive coil winding device provided in this embodiment can realize the winding of a single-layer multi-turn square wireless charging coil by providing a core mechanism 12 with a square core 121; the bending of the lead can be realized by providing a lower bending mechanism 14 and an upper bending mechanism 22; the lead and the coil body can be bonded by providing a wire pressing mechanism 15; the spacing size of the two leads can be controlled by providing a tail lead clamp 16; the wire cutting function can be realized by providing a cutter mechanism 23, that is, the lead-outward self-adhesive coil winding device integrates winding, lead-outward bending, lead-adhesive coil body, control of the spacing size of the two leads, and wire cutting functions, which can avoid multi-station processing of products and directly save labor and equipment costs.

[0048] The lead-out self-adhesive coil winding device provided in this embodiment can wind a square coil formed by heating copper wire. The two tail leads of the square coil are led outward, maintaining the structural and process characteristics of the designed spacing size control, tangent length control, and bonding of the inner lead and the coil body. The square coil with two tail leads leading outward can be made by this lead-out self-adhesive coil winding device using a one-time molding process, which reduces the process of the coil's subsequent processes (such as bending the lead outward, fixing the inner lead with glue, and tangent process). The one-time molding process has great advantages and can directly save labor and equipment costs and improve equipment utilization. It is a great improvement relative to the improvement of product process technology, breaking through the original process links, and has reliability. It will effectively improve product quality, while also meeting the client's requirements for its products.

[0049] In this embodiment, if Figure 5As shown, the core mechanism 12 also includes a connecting rod 123 fixedly arranged at one end of the square core 121 away from the upper fixture 20, and the end of the connecting rod 123 away from the square core 121 can be connected to an external core pulling rod, and the external core pulling rod can push the connecting rod 123 as required to drive the square core 121 to move up and down in the lower fixture 10. The connecting rod 123 is provided with a first limiting hole 124 extending in the radial direction, which is used for a first connecting pin 125 to pass through, and the first connecting pin 125 is fixedly connected to the lower mold base 17, so as to realize the connection of the core mechanism 12 to the lower mold base 17. The size of the first limiting hole 124 in the axial direction is larger than the size of the first connecting pin 125, so as to allow the connecting rod 123 to move in the axial direction. The size of the first limiting hole 124 in the circumferential direction is equal to the size of the first connecting pin 125, so as to limit and fix the circumferential direction of the connecting rod 123. The surface of the square core 121 is provided with a wire entry groove 122. The square core 121 is fixedly connected to the connecting rod 123 through an extension shaft 126. The size of the extension shaft 126 is smaller than that of the square mold core 121. A first spring (not shown) is provided on the outer sleeve of the extension shaft 126, and the first spring abuts between the square mold core 121 and the connecting rod 123, so that in a natural state (when the external core-pulling rod does not act on the connecting rod 123), the first spring makes the top end of the first limiting hole 124 contact with the first connecting pin 125, and the first spring has a buffering and resetting effect.

[0050] like Figure 6 As shown, the lower demoulding mechanism 13 includes a plurality of lower demoulding members 131 and two lower demoulding ejector pins 132. The lower demoulding ejector pins 132 are driven by an external power member, and the lower demoulding mechanism 13 can slide up and down in the lower fixture 10, so that after the square coil is formed, it can be lifted up by the lower demoulding member 131, and then successfully separated from the upper surface of the lower mold end cover 11. A plurality of lower demoulding members 131 are arranged through the second through hole 112 and are arranged at intervals around the square mold core 121. The lower demoulding members 131 and the lower demoulding ejector pins 132 are fixedly connected through the lower demoulding seat 133. The lower demoulding ejector pins 132 are arranged through the lower mold base 17, and a second spring 134 is provided between the lower demoulding seat 133 and the lower end surface of the lower mold end cover 11, so that the lower demoulding mechanism 13 and the lower mold end cover 11 are elastically connected, which has the function of buffering and resetting.

[0051] like Figure 3 As shown, the lower fixture 10 also includes a lower die mounting seat 18, which can assist in the installation of the core mechanism 12, the lower demoulding mechanism 13, the lower bending mechanism 14 and the wire pressing mechanism 15. The lower die mounting seat 18 is fixedly connected between the lower die base 17 and the lower die end cover 11, and the extension shaft 126 and the lower demoulding ejector rod 132 are passed through the lower die mounting seat 18.

[0052] like Figure 7As shown, the lower bending mechanism 14 includes a lower bending pin 141 and a lower bending top block 142 which are fixedly connected. The lower bending pin 141 is inserted into the third through hole 113, and the lower bending pin 141 is used for bending the inner lead wire. The lower bending top block 142 is driven by an external power member, and the lower bending mechanism 14 can slide up and down in the lower fixture 10, thereby achieving a 90° bending effect for the inner lead wire of the coil. The lower bending top block 142 is inserted into the lower die mounting seat 18, and a third spring (not shown) is provided between the lower bending top block 142 and the upper end surface of the lower die base 17, so that the lower bending mechanism 14 and the lower die base 17 are elastically connected, which has a buffering and resetting effect.

[0053] like Figure 8 As shown, the wire pressing mechanism 15 includes a wire pressing block 151 and a wire pressing push rod 156 which are fixedly connected. The wire pressing block 151 is inserted into the fourth through hole 114, and the coil body and the lead wire can be bonded together by the wire pressing block 151. The wire pressing push rod 156 is driven by an external power member, and the wire pressing mechanism 15 can slide up and down in the lower fixture 10, so that the lead wire and the coil body can be pressed together. Fig. 9 As shown, the upper end surface of the wire pressing block 151 is provided with a plurality of first vents 152, and the outer side surface of the wire pressing block 151 is provided with a second vent 153, and the plurality of first vents 152 are connected to the second vents 153. In the wire arrangement step, after the wire pressing mechanism 15 is moved upward to press the lead wire and the coil body together, the first vent 152 and the second vent 153 can be ventilated and heated, so that the lead wire and the coil body are bonded. The upper end surface of the wire pressing block 151 is provided with a protrusion 154, which avoids the position of the first vent 152 and has a side 155 parallel to the radial direction, and the lead wire can be attached to the side 155, so that when the lead wire is pressed with the coil body, the lead wire can be kept straight to prevent the lead wire from being deformed by heat. The wire pressing rod 156 is inserted into the lower die mounting seat 18, and a fourth spring (not shown) is arranged between the wire pressing rod 156 and the lower end surface of the lower die end cover 11, so that the wire pressing mechanism 15 and the lower die end cover 11 are elastically connected, which has the function of buffering and resetting. The wire pressing rod 156 and the lower bending top block 142 are arranged parallel to the axial direction and are arranged opposite to the tail lead clamp 16, so that the components of the lower fixture 10 can effectively utilize the space and have a more reasonable layout.

[0054] like Fig.10As shown, the tail lead wire clamp 16 includes a starting wire clamp 161, a tail wire clamp 162 and a support pin 163. The starting wire clamp 161 and the tail wire clamp 162 are arranged opposite to each other, and the support pin 163 is located between the starting wire clamp 161 and the lower mold end cover 11. The lower fixture 10 clamps one end of the lead wire through the tail lead wire clamp 16 during the coil winding process to achieve the coil winding action, and the support pin 163 is used to prevent the lead wire from deviating. The tail lead wire clamp 16 also includes a wire clamp mounting seat 164 fixedly connected to the lower mold mounting seat 18, and the support pin 163 is fixedly mounted on the wire clamp mounting seat 164. A fifth spring 165 is provided between the starting wire clamp 161 and the wire clamp mounting seat 164, and a sixth spring 166 is provided between the tail wire clamp 162 and the wire clamp mounting seat 164. The fifth spring 165 and the sixth spring 166 make the starting wire clamp 161 and the tail wire clamp 162 float up and down when subjected to force, which has a buffering and resetting effect.

[0055] like Fig.11 As shown, the upper fixture 20 also includes an upper die mounting seat 26, which can assist in the installation of the upper demolding mechanism 24. The upper die mounting seat 26 is fixedly connected between the upper die base 25 and the upper die end cover 21. The upper fixture 20 also includes an upper bending mechanism 22, which is used for bending the tail line. The upper bending mechanism 22 is movably connected to the upper die base 25 and can move axially, and the upper die end cover 21 is provided with a sixth through hole 212 for part of the upper bending mechanism 22 to pass through. In the radial direction, the sixth through hole 212 is located on the outside of the third through hole 113, that is, the upper bending mechanism 22 passing through the sixth through hole 212 is located on the outside of the lower bending pin 141. The sixth through hole 212 is located between the fifth through hole 211 and the cutting knife mechanism 23.

[0056] like Fig.14 As shown, the upper demoulding mechanism 24 includes a plurality of upper demoulding members 241 and two upper demoulding ejector rods 242. The upper demoulding ejector rods 242 are driven by an external power member, and the upper demoulding mechanism 24 can slide up and down in the upper fixture 20, so that the upper demoulding member 241 can lift up the square coil after the square coil is formed, and then successfully detach from the lower surface of the upper mold end cover 21. A plurality of upper demoulding members 241 are arranged in the fifth through hole 211. The upper demoulding members 241 and the upper demoulding ejector rods 242 are fixedly connected by the upper demoulding seat 243. The upper demoulding ejector rods 242 are arranged in the upper mold base 25 and the upper mold mounting seat 26. A seventh spring 244 is arranged between the upper demoulding seat 243 and the lower end surface of the upper mold end cover 21, so that the upper demoulding mechanism 24 and the upper mold end cover 21 are elastically connected, which has the function of buffering and resetting.

[0057] like Fig.12As shown, the upper bending mechanism 22 includes an upper bending pin 221, an upper bending top block 222 and a driving shaft 223, wherein the upper bending pin 221 and the upper bending top block 222 are fixedly connected, and the upper bending top block 222 and the driving shaft 223 are fixedly connected. The upper bending pin 221 is arranged in the sixth through hole 212, and the upper bending pin 221 is used for bending the tail line. The upper bending top block 222 is arranged in the upper die mounting seat 26, and the driving shaft 223 is arranged in the upper die mounting seat 26 and the upper die base 25. The upper die base 25 is provided with a second limiting hole 251 extending in the radial direction, for allowing the second connecting pin 224 to pass through, and the second connecting pin 224 is fixedly connected to the driving shaft 223, so as to realize the connection of the upper bending mechanism 22 to the upper die base 25. The size of the second limiting hole 251 in the axial direction is larger than the size of the second connecting pin 224, so as to allow the upper bending mechanism 22 to move in the axial direction. The size of the second limiting hole 251 in the circumferential direction is equal to the size of the second connecting pin 224, thereby limiting and fixing the circumferential direction of the upper bending mechanism 22. The driving shaft 223 is driven by an external power member, and the upper bending mechanism 22 can slide up and down in the upper fixture 20, and the upper bending pin 221 extends out of the lower surface of the upper die end cover 21, rotating the winding device to achieve the effect of bending the tail wire of the coil by 90°.

[0058] like Fig.13 As shown, the cutter mechanism 23 includes a cutter mounting seat 231 fixedly connected to the upper mold mounting seat 26, a lead cutter 232 mounted on the cutter mounting seat 231, and an eighth spring (not shown) pressed between the cutter mounting seat 231 and the lead cutter 232. The lead cutter 232 is provided with a third limiting hole (not shown) for the third connecting pin 233 to pass through. The third connecting pin 233 is fixedly connected to the cutter mounting seat 231. The size of the third limiting hole in the axial direction is larger than the size of the third connecting pin 233, thereby allowing the lead cutter 232 to move in the axial direction. The size of the third limiting hole in the circumferential direction is equal to the size of the third connecting pin 233, thereby limiting and fixing the lead cutter 232 in the circumferential direction. The eighth spring allows the lead cutter 232 to float up and down when subjected to force, and has the function of buffering and resetting. When the upper jig 20 and the lower jig 10 are molded together, the tail lead clamp 16 of the lower jig 10 clamps the copper wire, and the lead cutter 232 of the upper jig 20 can cut off one end of the copper wire.

[0059] In this embodiment, the radial length of the first heat dissipation through hole 115 and the second heat dissipation through hole 213 is greater than the radial length of the second through hole 112 and the fifth through hole 211, so as to better dissipate heat. The hot air inside the upper fixture 20 and the lower fixture 10 can be discharged through the first heat dissipation through hole 115 and the second heat dissipation through hole 213, so that the coil is better cooled and solidified. At the same time, the first heat dissipation through hole 115 and the second heat dissipation through hole 213 also have an anti-sticking effect, reducing the contact area between the copper wire and the end surface after being heated, thereby achieving an anti-sticking effect.

[0060] The invention is suitable for manufacturing square wireless charging induction coils, mainly involving various products such as mobile phone wireless charging coils, headphone socket wireless charging coils, and car wireless charging coils, and can realize winding of a single-layer, single-root, neatly arranged square coil with multiple turns.

[0061] In a specific application scenario, when using the lead-outward self-adhesive coil winding device provided in the embodiment of the present application to wind the wire, first use the wire feeding guide wheel and the wire feeding clamp to feed the copper wire between the upper jig 20 and the lower jig 10, and the lower bending pin 141 of the lower jig 10 extends out to contact the copper wire; the wire starting clamp 161 of the lower jig 10 clamps the copper wire, and at the same time the lead cutter 232 of the upper jig 20 cuts off the starting wire, and the wire feeding clamp is removed; the winding device rotates 90° clockwise to complete the bending of the starting wire, the wire feeding guide wheel moves to the winding position, and the winding device starts to rotate counterclockwise for winding, and the square core 121 extends upward during winding; after the winding device rotates counterclockwise a predetermined number of times (for example, 29 times), the upper bending pin 221 of the upper jig 20 extends out to contact the copper wire. , the winding device rotates 90° clockwise to complete the bending of the tail wire; the wire feeding guide wheel feeds the tail wire into the tail wire clamp 162 of the lower fixture 10, the winding device rotates 90° clockwise, and the wire feeding guide wheel moves to the initial position at the same time; the wire feeding clamp extends to clamp the copper wire, and the lead cutter 232 cuts off the tail wire; after the winding is completed, the wire pressing block 151 extends to press the starting wire with the coil body, and the first vent hole 152 and the second vent hole 153 are ventilated and heated, so as to bond the lead wire to the coil body; at the same time, the coil body is also heated, and the tail wire is heated and bonded to the coil body; finally, the lower demolding member 131 and the upper demolding member 241 extend to separate the coil from the upper fixture 20 and the lower fixture 10, thereby obtaining a square coil with neatly arranged coil lead self-adhesive bodies.

[0062] It should be noted that, in the description of this specification, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this specification, unless otherwise specified, the meaning of "plurality" is two or more.

[0063] Any numerical value cited herein includes all values ​​of lower and upper values ​​that increase by one unit from the lower limit to the upper limit, and there is at least a two-unit interval between any lower value and any higher value. For example, if the value of the quantity of a component or a process variable (such as temperature, pressure, time, etc.) is set forth to be from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in the specification. For values ​​less than 1, one unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be clearly expressed, and it can be considered that all possible combinations of numerical values ​​listed between the lowest value and the highest value are clearly set forth in the specification in a similar manner.

[0064] Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", including at least the specified endpoints.

[0065] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0066] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0067] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by such claims. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims

1. A lead-out self-adhesive coil winding device, characterized in that: It includes an upper jig and a lower jig which are relatively arranged; The lower fixture comprises a lower die end cover, a core mechanism, a lower demoulding mechanism, a lower bending mechanism, a wire pressing mechanism, a tail lead clamp and a lower die base; the lower die end cover is fixedly connected to the lower die base; the core mechanism, the lower demoulding mechanism, the lower bending mechanism and the wire pressing mechanism are all movably connected to the lower die base and can move axially; the tail lead clamp is fixedly connected to the side of the lower die end cover; the lower die end cover is provided with a first through hole for part of the core mechanism to pass through, a plurality of second through holes for part of the lower demoulding mechanism to pass through, a third through hole for part of the lower bending mechanism to pass through, and a third through hole for part of the The wire pressing mechanism is provided with a fourth through hole and a plurality of first heat dissipation through holes. The side of the lower mold end cover facing the upper fixture includes a first plane and a first inclined surface located on the circumference of the first plane. The first through hole, the second through hole, the third through hole, the fourth through hole and the first heat dissipation through hole are all located on the first plane. The second through hole and the first heat dissipation through hole are arranged at intervals on the circumference of the first through hole. The fourth through hole is located between the first through hole and the tail lead clip, and the third through hole is located between the first through hole and the fourth through hole. The core mechanism includes a square core that is provided through the first through hole. The upper fixture comprises an upper die end cover, a cutter mechanism, an upper demolding mechanism and an upper die base; the upper die end cover is fixedly connected to the upper die base; the upper demolding mechanism is movably connected to the upper die base and can move axially; the cutter mechanism is fixedly connected to the side of the upper die end cover and is aligned with the tail lead clamp; the upper die end cover is provided with a plurality of fifth through holes and a plurality of second heat dissipation through holes for part of the upper demolding mechanism to pass through, and a side of the upper die end cover facing the lower fixture comprises a second plane, a second inclined surface located on the circumferential side of the second plane, and the fifth through hole and the second heat dissipation through hole are located on the second plane; the fifth through hole and the second heat dissipation through hole are spaced apart in the circumferential direction; the first plane and the second plane are arranged opposite to each other, the first inclined surface and the second inclined surface are arranged opposite to each other, and in the direction from the center to the circumferential side, the distance between the first inclined surface and the second inclined surface gradually increases.

2. The lead-out self-adhesive coil winding device according to claim 1, characterized in that: The mold core mechanism also includes a connecting rod fixedly arranged on an end of the square mold core away from the upper jig, the connecting rod is provided with a first limiting hole extending radially for a first connecting pin to pass through, the axial size of the first limiting hole is larger than the size of the first connecting pin, and the circumferential size of the first limiting hole is equal to the size of the first connecting pin; the first connecting pin is fixedly connected to the lower mold base; a wire entry groove is provided on the surface of the square mold core, the square mold core is fixedly connected to the connecting rod through an extension shaft, the size of the extension shaft is smaller than the size of the square mold core, and a first spring is provided on the outer sleeve of the extension shaft, and the first spring presses against between the square mold core and the connecting rod.

3. The lead-out self-adhesive coil winding device according to claim 2, characterized in that: The lower demoulding mechanism includes a plurality of lower demoulding parts and two lower demoulding ejector rods. The plurality of lower demoulding parts are passed through the second through holes and are arranged at intervals around the square mold core. The lower demoulding parts and the lower demoulding ejector rods are fixedly connected via a lower demoulding seat. The lower demoulding ejector rods are passed through the lower mold base, and a second spring is provided between the lower demoulding seat and the lower end surface of the lower mold end cover.

4. The lead-out self-adhesive coil winding device according to claim 3, characterized in that: The lower fixture also includes a lower die mounting seat, which is fixedly connected between the lower die base and the lower die end cover, and the extension shaft and the lower demoulding ejector rod are inserted through the lower die mounting seat.

5. The lead-out self-adhesive coil winding device according to claim 4, characterized in that: The lower bending mechanism includes a lower bending pin and a lower bending top block which are fixedly connected, the lower bending pin is passed through the third through hole; the lower bending top block is passed through the lower mold mounting seat, and a third spring is provided between the lower bending top block and the upper end surface of the lower mold base.

6. The lead-out self-adhesive coil winding device according to claim 4, characterized in that: The wire pressing mechanism includes a wire pressing block and a wire pressing push rod which are fixedly connected, and the wire pressing block is inserted into the fourth through hole; the upper end surface of the wire pressing block is provided with a plurality of first air holes, and the outer side surface of the wire pressing block is provided with a second air hole, and the plurality of first air holes are connected with the second air holes; the upper end surface of the wire pressing block is provided with a protrusion, and the protrusion avoids the position of the first air hole and has a side parallel to the radial direction; the wire pressing push rod is inserted into the lower mold mounting seat, and a fourth spring is provided between the wire pressing push rod and the lower end surface of the lower mold end cover; the wire pressing push rod and the lower bending push block are arranged in parallel along the axial direction and are arranged opposite to the tail lead clamp.

7. The lead-out self-adhesive coil winding device according to claim 4, characterized in that: The tail lead clamp includes a starting wire clamp, a tail wire clamp and a support pin, the starting wire clamp and the tail wire clamp are arranged opposite to each other, and the support pin is located between the starting wire clamp and the lower mold end cover; the tail lead clamp also includes a wire clamp mounting seat fixedly connected to the lower mold mounting seat, the support pin is fixedly installed on the wire clamp mounting seat, a fifth spring is provided between the starting wire clamp and the wire clamp mounting seat, and a sixth spring is provided between the tail wire clamp and the wire clamp mounting seat.

8. The lead-out self-adhesive coil winding device according to claim 1, characterized in that: The upper jig also includes an upper die mounting seat, which is fixedly connected between the upper die base and the upper die end cover; the upper jig also includes an upper bending mechanism, which is movably connected to the upper die base and can move axially, and the upper die end cover is provided with a sixth through hole for part of the upper bending mechanism to pass through; in the radial direction, the sixth through hole is located on the outside of the third through hole; the sixth through hole is located between the fifth through hole and the cutting knife mechanism.

9. The lead-out self-adhesive coil winding device according to claim 8, characterized in that: The upper demoulding mechanism comprises a plurality of upper demoulding members and two upper demoulding ejector rods, wherein the plurality of upper demoulding members are inserted through the fifth through hole; the upper demoulding members and the upper demoulding ejector rods are fixedly connected through an upper demoulding seat; the upper demoulding ejector rods are inserted through the upper mold base and the upper mold mounting seat, and a seventh spring is provided between the upper demoulding seat and the lower end surface of the upper mold end cover; The upper bending mechanism includes an upper bending pin, an upper bending top block and a driving shaft, the upper bending pin and the upper bending top block are fixedly connected, and the upper bending top block and the driving shaft are fixedly connected; the upper bending pin is passed through the sixth through hole; the upper bending top block is passed through the upper mold mounting seat, and the driving shaft is passed through the upper mold mounting seat and the upper mold base; the upper mold base is provided with a second limiting hole extending radially for the second connecting pin to pass through, the axial size of the second limiting hole is larger than the size of the second connecting pin, and the circumferential size of the second limiting hole is equal to the size of the second connecting pin; the second connecting pin is fixedly connected to the driving shaft.

10. The lead-out self-adhesive coil winding device according to claim 8, characterized in that: The cutter mechanism includes a cutter mounting seat fixedly connected to the upper mold mounting seat, a lead cutter mounted on the cutter mounting seat, and an eighth spring pressed between the cutter mounting seat and the lead cutter, the lead cutter is provided with a third limiting hole for a third connecting pin to pass through, the third connecting pin is fixedly connected to the cutter mounting seat, the axial size of the third limiting hole is larger than the size of the third connecting pin, and the circumferential size of the third limiting hole is equal to the size of the third connecting pin.

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