Electromagnetic wire winding device and method
Through the disassembly and assembly mechanism of the electromagnetic wire winding device, the rotating elastic telescopic handle and connecting rod transmission is used to achieve stable winding and convenient disassembly of the coil, solving the problem of difficult coil removal caused by the high design of the outer edge of the winding frame, and improving operating efficiency.
Patent Information
- Application Number
- CN202510670672.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the design of the high outer edge of the winding frame makes it difficult to remove manually after the coil is wound, the friction force is greatly increased, and operation is difficult.
A winding device of electromagnetic wire is adopted, including a disassembly and assembly mechanism, which drives the rotary frame to rotate by rotating the elastic telescopic handle, and uses the connecting rod transmission to push the plate body to move opposite to each other, so that the oblique extrusion stopper rotates outward to form a protrusion, fixes the stability during the winding process of the wire, and manually compresses the handle to remove it from the limit groove, achieving convenient removal of the coil.
It solves the problem of difficult coil removal caused by the high outer edge design of the winding frame, reduces friction, realizes convenient disassembly of the coil, and improves operating efficiency.
Smart Images

Figure CN120377596A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of motor production, and specifically relates to a winding device and method for electromagnetic wires. Background Art
[0002] A three-phase motor is a motor driven by three-phase alternating current, which mainly consists of components such as a stator and a rotor. Among them, the stator is the fixed part of the motor and is responsible for generating a rotating magnetic field. The stator mainly includes a stator core, a stator winding, and a base and end cover. The stator winding is a three-phase winding (U, V, W) and is embedded in the core slots at an electrical angle of 120°.
[0003] The stator winding is generally composed of a multi-turn coil wound by a single copper wire. During production, it is usually wound by driving a winding frame to rotate by a motor. To ensure that multiple copper wires do not spread when the winding frame rotates, the outer periphery of the winding frame is usually of a structure with a high outer edge, thus avoiding the situation of spreading during the coil winding process. However, as the number of winding layers of the coil increases, the inner layer of the coil will be more tightly squeezed by the outer layer during winding. When it is necessary to remove the coil, due to the inner layer of the coil being squeezed too tightly, the friction force with the winding frame increases significantly. At the same time, the design of the high outer edge of the winding frame makes the operation of removing the coil very difficult. Therefore, to solve the above problems, a winding device and method for electromagnetic wires are proposed. Summary of the Invention
[0004] To solve the problems raised in the above background art, the present invention provides a winding device and method for electromagnetic wires, which solves the problem that it is difficult to manually remove the coil after winding due to the design of the high outer edge of the winding frame.
[0005] To achieve the above object, the present invention provides the following technical solution: A winding device for electromagnetic wires, including a motor and a winding frame, further including: a disassembly and assembly mechanism installed in the winding frame;
[0006] The winding frame includes a main frame, two groups of end frames, and a connecting member. The end frames are installed at the ends of the main frame through the connecting member. The edges on one side of the main frame and the end frames are high; a connecting frame connected to the output end of the motor is fixedly connected to the main frame;
[0007] The disassembly and assembly mechanism includes a rotating frame. Pin shafts I and II are fixedly connected to both ends of the rotating frame. Connecting rods are hinged on both the pin shaft I and the pin shaft II, and the other ends of the connecting rods are hinged to a plate body. The plate body is movably installed inside the main frame. Hypotenuses are symmetrically formed on the plate body. A limiting member is fixedly connected to the main frame, and a limiting groove is formed in the limiting member. A central rotating shaft is fixedly connected to the middle of the rotating frame. One end of the central rotating shaft is hinged to the connecting frame through a hairspring, and the other end of the central rotating shaft is hinged to an elastic telescopic handle. One end of the pin shaft II is movably sleeved inside the elastic telescopic handle;
[0008] A stopper that rotates outward by less than twenty degrees is also hinged on the main frame. When the hypotenuse moves, it can squeeze the main frame and cause it to rotate outward;
[0009] When the elastic telescopic handle rotates, one end of it is squeezed and contracted by the limiting part and can be clamped into the limiting groove after resetting.
[0010] Preferably, the connecting member is a spring combined telescopic rod; there is a gap between the end frame and the end of the main frame in the initial state, and the end frame can move axially under the limitation of the connecting member.
[0011] Preferably, top shafts are fixedly connected to the opposite ends of the two plate bodies, and both ends of the top shafts are located between the main frame and the end frame;
[0012] When the two top shafts move away from each other, they can respectively push the two end frames away from each other and cause the spring part on the connecting member to be compressed and store energy.
[0013] Preferably, a through hole is provided on one of the end frames.
[0014] Preferably, a clamping assembly is arranged inside the main frame; the clamping assembly includes a limiting cross bar fixedly connected inside the main frame, symmetrically and movably sleeved with clamping jaws located inside the main frame on the limiting cross bar, and auxiliary grooves are also provided at the ends of the clamping jaws;
[0015] An adjusting assembly for driving the two clamping jaws to move towards each other is also arranged inside the main frame.
[0016] Preferably, a guiding groove is provided at the end of the clamping jaw away from the auxiliary groove;
[0017] The adjusting assembly includes a slider movably connected inside the main frame. A straight slot is provided at one end of the slider, and convex shafts that can slide in the guiding groove are symmetrically fixedly connected to the other end of the straight slot;
[0018] The central rotating shaft penetrates through the center of the straight slot, and one end of the pin shaft two extends into the straight slot;
[0019] Rotating the elastic telescopic handle can cause the pin shaft two to slide in the straight slot and drive the slider to move, and the central rotating shaft will also disengage from the straight slot;
[0020] A sliding groove is also provided on the elastic telescopic handle. Rotating the elastic telescopic handle in the reverse direction can cause the pin shaft two to disengage from the sliding groove.
[0021] Preferably, a counterweight is fixedly connected to the other main frame except the one provided with the through hole.
[0022] A winding method for electromagnetic wires, using a winding device for electromagnetic wires as described above, the winding method is as follows:
[0023] During installation, one end of the wire is fixed to the outer periphery of the winding frame, and the rotating frame is driven to rotate by rotating the elastic telescopic handle and the two sets of plates are pushed to move back to each other through the transmission of the two sets of connecting rods, so that the bevel extrusion stopper rotates outward and forms a bulge outside the main frame. When one end of the elastic telescopic handle is stuck in the limit groove, the elastic telescopic handle cannot rotate and the plate cannot move, thereby ensuring the stability of the stopper during the wire winding process;
[0024] During disassembly, the elastic telescopic handle is manually compressed to disengage it from the limit groove. The rotating frame and the central rotating shaft will be reset by the pulling force of the mainspring, thereby driving the plate body to reset. At this time, the baffle loses the squeezing of the bevel edge, and the coil on the winding frame loses the obstruction of the baffle, so the operator can directly remove the coil outside the winding frame.
[0025] Compared with the prior art, the present invention has the following beneficial effects:
[0026] The above scheme drives the rotating frame to rotate by rotating the elastic telescopic handle and pushes the two sets of plates to move away from each other through the transmission of the two sets of connecting rods, thereby causing the beveled edge extrusion stopper to rotate outward and form a bulge on the outside of the main frame. When one end of the elastic telescopic handle is stuck in the limit groove, the elastic telescopic handle cannot rotate and the plate body is fixed, thereby ensuring the stability of the stopper during the wire winding process; in the process of removing the coil, the elastic telescopic handle is manually compressed to disengage it from the limit groove, and the rotating frame and the central rotating shaft will be reset by the pulling force of the spring, thereby driving the plate body to reset. At this time, the stopper loses the extrusion of the bevel edge, and the coil on the winding frame loses the obstruction of the stopper, so that the operator can directly remove the coil outside the winding frame, solving the problem that the coil is difficult to remove manually after winding due to the high design of the outer edge of the winding frame;
[0027] The above scheme drives the top shaft to push the end frame outward when the plates move back to back, and compresses the spring part on the connecting piece to store force, thereby increasing the distance between the two end frames. At this time, after the motor is driven to rotate the winding frame to wind the coil, the elastic telescopic handle is manually operated to move the plates toward each other and reset, and the connecting piece will drive the end frame to reset due to its own elastic force, thereby reducing the distance between the two end frames, avoiding the problem of difficulty in removing the coil due to the tightening of the inner ring wire and the increase of friction between the main frame and the end frame during the winding process;
[0028] The above scheme fixes one end of the wire on the winding frame, and passes the end of the wire through the through hole and deep into the two clamping claws. When the operator rotates the elastic telescopic handle, one end of the pin shaft will slide in the straight slot and drive the convex shaft to move in the guide slot through the slider. At the same time, under the limit of the limit cross bar, the two clamping claws will move toward each other and clamp the wire between them, so as to facilitate the subsequent winding operation of the winding frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1Schematic diagram of the overall structure of the present invention;
[0030] Figure 2 Schematic diagram of the side view plane structure of the present invention;
[0031] Figure 3 Schematic diagram of the mating structure of the wire winding frame and the clamping assembly of the present invention;
[0032] Figure 4 Schematic diagram of the back structure of the adjusting mechanism of the present invention;
[0033] Figure 5 Schematic diagram of the structure of the limiting member of the present invention;
[0034] Figure 6 is Figure 4 Enlarged view of part A in
[0035] Figure 7 Schematic diagram of the back structure of the wire winding frame of the present invention;
[0036] Figure 8 Schematic diagram of the structure of the clamping assembly of the present invention.
[0037] In the figure: 1, motor; 2, wire winding frame; 21, main frame; 211, connecting frame; 212, blocking member; 22, end frame; 221, through hole; 222, counterweight member; 23, connecting member; 24, height along; 3, disassembly and assembly mechanism; 31, rotating frame; 311, central rotating shaft; 312, pin shaft one; 313, pin shaft two; 32, connecting rod; 33, plate body; 34, bevel edge; 331, top shaft; 35, elastic telescopic handle; 351, sliding groove; 36, limiting member; 361, limiting groove; 4, clamping assembly; 41, limiting cross bar; 42, clamping jaw; 421, auxiliary groove; 422, guiding groove; 5, adjusting assembly; 51, slider; 52, straight notch; 53, convex shaft. Detailed implementation manners
[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0039] As Figures 1 to 8 shown, the present invention provides a wire winding device for electromagnetic wires, including a motor 1 and a wire winding frame 2, and further including: a disassembly and assembly mechanism 3, which is installed in the wire winding frame 2;
[0040] The winding frame 2 includes a main frame 21, two sets of end frames 22 and a connecting piece 23. The end frame 22 is installed at the end of the main frame 21 through the connecting piece 23. The edge of one side of the main frame 21 and the end frame 22 is an edge height 24. A connecting frame 211 connected to the output end of the motor 1 is fixedly connected to the main frame 21.
[0041] The disassembly and assembly mechanism 3 includes a rotating frame 31, and the two ends of the rotating frame 31 are fixedly connected with a pin shaft 1 312 and a pin shaft 2 313. The pin shaft 1 312 and the pin shaft 2 313 are both hinged with a connecting rod 32, and the other end of the connecting rod 32 is hinged with a plate body 33, and the plate body 33 is movably installed inside the main frame 21, and a bevel 34 is symmetrically provided on the plate body 33. A limiting member 36 is fixedly connected to the main frame 21, and a limiting groove 361 is provided on the limiting member 36. A central rotating shaft 311 is fixedly connected to the middle of the rotating frame 31, and one end of the central rotating shaft 311 is hinged with the connecting frame 211 through a spring, and the other end of the central rotating shaft 311 is hinged with an elastic telescopic handle 35, and one end of the pin shaft 2 313 is movably sleeved inside the elastic telescopic handle 35;
[0042] The main frame 21 is also hinged with a stopper 212 with an outward rotation range of less than 20 degrees. When the bevel 34 moves, it can squeeze the main frame 21 and make it rotate outward; when the elastic telescopic handle 35 rotates, one end of it is squeezed and contracted by the limiting member 36 and can be inserted into the limiting groove 361 after being reset.
[0043] By adopting the above scheme, the rotating frame 31 is driven to rotate by rotating the elastic telescopic handle 35 and the two sets of plates 33 are pushed to move in opposite directions through the transmission of the two sets of connecting rods 32, so that the bevel 34 squeezes the stopper 212 to rotate outward and form a bulge outside the main frame 21. When one end of the elastic telescopic handle 35 is inserted into the limiting groove 361, the elastic telescopic handle 35 cannot rotate and the plate 33 is fixed, thereby ensuring the stability of the stopper 212 during the wire winding process.
[0044] During the process of removing the coil, the elastic telescopic handle 35 is manually compressed to disengage it from the limit groove 361, and the rotating frame 31 and the central rotating shaft 311 will be reset by the pulling force of the spring, thereby driving the plate body 33 to reset. At this time, the blocking member 212 loses the squeezing of the bevel edge 34, and the coil on the winding frame 2 loses the obstruction of the blocking member 212. The operator can directly remove the coil outside the winding frame 2, which solves the problem that the high outer edge of the winding frame makes it difficult to manually remove the coil after winding is completed.
[0045] like Figures 1 - 7 As shown, the connecting member 23 is a spring-combined telescopic rod; in the initial state, a gap is left between the end frame 22 and the end of the main frame 21, and the end frame 22 can move axially under the limit of the connecting member 23;
[0046] The two plates 33 are fixedly connected to the opposite ends of each other with a top shaft 331, and both ends of the top shaft 331 are located between the main frame 21 and the end frame 22;
[0047] When the two jacking shafts 331 move away from each other, they can respectively push the two end frames 22 away from each other and compress and store energy in the spring part on the connecting member 23; a through hole 221 is provided on one of the end frames 22.
[0048] With the above solution, when the plate body 33 moves away from each other, it drives the jacking shaft 331 to push the end frame 22 to move outward and compress and store energy in the spring part on the connecting member 23, so as to increase the distance between the two end frames 22. At this time, after the running motor 1 drives the winding frame 2 to rotate and wind the coil, manually operate the elastic telescopic handle 35 to make the plate body 33 move toward each other to reset, and the connecting member 23 will drive the end frame 22 to reset under its own elastic force, thereby reducing the distance between the two end frames 22, avoiding the problem that the wire on the inner circle of the coil is tightened during the winding process and the friction between the main frame 21 and the end frame 22 increases, resulting in difficulty in removing the coil.
[0049] As Figures 3 - 5 、 Figure 6 and Figure 8 shown, a clamping assembly 4 is arranged in the main frame 21; the clamping assembly 4 includes a limiting cross bar 41 fixedly connected in the main frame 21, and clamping jaws 42 symmetrically and movably sleeved on the limiting cross bar 41 and located inside the main frame 21, and an auxiliary groove 421 is also provided at the end of the clamping jaw 42.
[0050] An adjusting assembly 5 for driving the two clamping jaws 42 to move toward each other is also arranged in the main frame 21; a guiding groove 422 is provided at one end of the clamping jaw 42 away from the auxiliary groove 421.
[0051] The adjusting assembly 5 includes a slider 51 movably connected in the main frame 21. A straight slot 52 is provided at one end of the slider 51, and convex shafts 53 capable of sliding in the guiding groove 422 are symmetrically fixedly connected at the other end of the straight slot 52; the central rotating shaft 311 penetrates through the center of the straight slot 52, and one end of the pin shaft two 313 extends into the straight slot 52.
[0052] Rotating the elastic telescopic handle 35 can make the pin shaft two 313 slide in the straight slot 52 and drive the slider 51 to move, and the central rotating shaft 311 will also disengage from the straight slot 52.
[0053] A sliding groove 351 is also provided on the elastic telescopic handle 35. Rotating the elastic telescopic handle 35 in the reverse direction can make the pin shaft two 313 disengage from the sliding groove 351.
[0054] A counterweight 222 is fixedly connected to the other main frame 21 provided with the through hole 221.
[0055] By adopting the above scheme, in the process of fixing one end of the wire on the winding frame 2, the end of the wire is passed through the through hole 221 and penetrated into between the two clamping claws 42. When the operator rotates the elastic telescopic handle 35, one end of the pin shaft 313 will slide in the straight slot 52 and drive the convex shaft 53 to move in the guide groove 422 through the slider 51. At the same time, under the limit of the limit cross bar 41, the two clamping claws 42 will move toward each other and clamp the wire between them, so as to facilitate the subsequent winding operation of the winding frame 2.
[0056] The working principle and use process of the present invention:
[0057] When the wire is in use, one end of the wire is fixed to the outer periphery of the winding frame 2, and the rotating frame 31 is driven to rotate by rotating the elastic telescopic handle 35, and the two sets of plate bodies 33 are pushed to move oppositely through the transmission of the two sets of connecting rods 32, so that the beveled edge 34 squeezes the stopper 212 to rotate outward and forms a bulge on the outside of the main frame 21. When one end of the elastic telescopic handle 35 is stuck in the limiting groove 361, the elastic telescopic handle 35 cannot rotate. At this time, the plate body 33 cannot move, thereby ensuring the stability of the stopper 212 during the wire winding process; when removing the coil, the elastic telescopic handle 35 is manually compressed to disengage it from the limiting groove 361, and the rotating frame 31 and the central rotating shaft 311 will be reset by the pulling force of the spring, thereby driving the plate body 33 to reset. At this time, the stopper 212 loses the squeezing of the beveled edge 34, and the coil on the winding frame 2 loses the obstruction of the stopper 212, and the operator can directly remove the coil outside the winding frame 2;
[0058] When the plates 33 move in opposite directions, the top shaft 331 will push the end frame 22 outward and compress the spring part on the connecting piece 23 to store force, thereby increasing the distance between the two end frames 22. At this time, after the motor 1 is running to drive the winding frame 2 to rotate and wind the coil, the elastic telescopic handle 35 is manually operated to move the plates 33 in opposite directions and reset, and the connecting piece 23 will drive the end frame 22 to reset due to its own elastic force, thereby reducing the distance between the two end frames 22, thereby avoiding the problem that the inner circle of the coil is tightened during the winding process and the friction between the main frame 21 and the end frame 22 increases, making it difficult to remove the coil.
[0059] When the operator fixes one end of the wire on the winding frame 2, the end of the wire is passed through the through hole 221 and penetrated into between the two clamping claws 42. When the operator rotates the elastic telescopic handle 35, one end of the pin shaft 313 will slide in the straight slot 52 and drive the convex shaft 53 to move in the guide slot 422 through the slider 51. At the same time, under the limit of the limit cross bar 41, the two clamping claws 42 will move toward each other and clamp the wire between them, so as to facilitate the subsequent winding operation of the winding frame 2.
[0060] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0061] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A winding device for electromagnetic wire, comprising a motor (1) and a winding frame (2), characterized in that, It further includes: A disassembly and assembly mechanism (3), which is installed in the winding frame (2); The winding frame (2) includes a main frame (21), two groups of end frames (22) and a connecting member (23). The end frames (22) are installed at the ends of the main frame (21) through the connecting member (23). The edges on one side of the main frame (21) and the end frames (22) are the edge along the height (24); A connecting frame (211) connected to the output end of the motor (1) is fixedly connected to the main frame (21); The disassembly and assembly mechanism (3) includes a rotating frame (31). Pin shafts one (312) and two (313) are fixedly connected to both ends of the rotating frame (31). Connecting rods (32) are hinged on both the pin shaft one (312) and the pin shaft two (313). The other end of the connecting rod (32) is hinged to a plate body (33). The plate body (33) is movably installed inside the main frame (21). Hypotenuses (34) are symmetrically formed on the plate body (33). A limiting member (36) is fixedly connected to the main frame (21), and a limiting groove (361) is formed on the limiting member (36). A central rotating shaft (311) is fixedly connected to the middle of the rotating frame (31). One end of the central rotating shaft (311) is hinged to the connecting frame (211) through a spring. The other end of the central rotating shaft (311) is hinged to an elastic telescopic handle (35). One end of the pin shaft two (313) is movably sleeved inside the elastic telescopic handle (35); A stopper (212) that rotates outward by a range less than twenty degrees is also hinged to the main frame (21). When the hypotenuse (34) moves, it can squeeze the main frame (21) and cause it to rotate outward; When the elastic telescopic handle (35) rotates, one end of it is squeezed and contracted by the limiting member (36) and can be snapped into the limiting groove (361) after resetting; 2. The winding device for electromagnetic wire according to claim 1, characterized in that: The connecting member (23) is a spring combined telescopic rod; In the initial state, there is a gap between the end frame (22) and the end of the main frame (21). The end frame (22) can move axially under the limitation of the connecting member (23); 3. The winding device for electromagnetic wires according to claim 2, characterized in that: Top shafts (331) are fixedly connected to the opposite ends of the two plate bodies (33). Both ends of the top shaft (331) are located between the main frame (21) and the end frame (22); When the two top shafts (331) move away from each other, they can respectively push the two end frames (22) away from each other and cause the spring part on the connecting member (23) to be compressed and store energy; 4. The winding device for electromagnetic wire according to claim 1, characterized in that: A through hole (221) is formed in one of the end frames (22); 5. The winding device for electromagnetic wire according to claim 4, characterized in that: A clamping assembly (4) is arranged inside the main frame (21); The clamping assembly (4) includes a limiting cross bar (41) fixedly connected inside the main frame (21). Claw jaws (42) located inside the main frame (21) are symmetrically and movably sleeved on the limiting cross bar (41). An auxiliary groove (421) is also formed at the end of the claw jaw (42); An adjusting assembly (5) for driving the two claw jaws (42) to move towards each other is also arranged inside the main frame (21); 6. The winding device for electromagnetic wire according to claim 5, characterized in that: A guiding groove (422) is formed at the end of the claw jaw (42) away from the auxiliary groove (421); The adjusting component (5) includes a slider (51) movably connected within the main frame (21). One end of the slider (51) is provided with a straight notch (52), and convex shafts (53) capable of sliding within the guiding groove (422) are symmetrically fixedly connected to the other end of the straight notch (52). The central rotating shaft (311) passes through the center of the straight notch (52), and one end of the second pin shaft (313) extends into the straight notch (52). Rotating the elastic telescopic handle (35) can cause the second pin shaft (313) to slide within the straight notch (52) and drive the slider (51) to move, and the central rotating shaft (311) will also disengage from the straight notch (52). A sliding groove (351) is further provided on the elastic telescopic handle (35). Rotating the elastic telescopic handle (35) in the reverse direction can cause the second pin shaft (313) to disengage from the sliding groove (351).
7. The winding device for electromagnetic wire according to claim 6, characterized in that: A counterweight (222) is fixedly connected to the other main frame (21) provided with a through hole (221).
8. A winding method for an electromagnetic wire, using a winding device for an electromagnetic wire as described in claim 1, characterized in that, The winding method is as follows: During installation, fix one end of the wire on the outer periphery of the winding frame (2). By rotating the elastic telescopic handle (35), drive the rotating frame (31) to rotate and, through the transmission of the two groups of connecting rods (32), push the two groups of plate bodies (33) to move away from each other, so that the bevel edge (34) squeezes the stopper (212) to rotate outward and form a protrusion outside the main frame (21). When one end of the elastic telescopic handle (35) is caught in the limiting groove (361), the elastic telescopic handle (35) cannot rotate, and the plate body (33) cannot move, thereby ensuring the stability of the main frame (21) during the wire winding process; During disassembly, manually compress the elastic telescopic handle (35) to make it disengage from the limiting groove (361). The rotating frame (31) and the central rotating shaft (311) will be reset under the tension of the spring, thereby driving the plate body (33) to reset. At this time, the stopper (212) loses the extrusion of the bevel edge (34), and the coil on the winding frame (2) loses the block of the stopper (212), and the operator can directly remove the coil outside the winding frame (2).