Constant-tension wrapping device for electromagnetic wire

Abstract

The utility model provides a constant tension wrapping device for an electromagnetic wire, which comprises a rack, the top of the rack is provided with a base, the base is rotatably connected with a hollow rotating shaft, and the hollow rotating shaft is provided with a wire passing through along the axis at a constant speed. A driving device is arranged on one side of the hollow rotating shaft and drives the hollow rotating shaft to rotate. One end, far away from the driving device, of the hollow rotating shaft is connected with a wrapping mechanism, the wrapping mechanism comprises a turntable, the turntable is connected with a support, the support is connected with a tape reel shaft, one end of the tape reel shaft is connected with a tape reel, one end, far away from the tape reel, of the tape reel shaft is connected with a brake mechanism, and the brake mechanism brakes the tape reel shaft to provide tension for the wrapping tape. According to the utility model, the tension of the wrapping tape is ensured to be constant and uniform, the wrapping tape is prevented from loosening or being too tight, the thickness of an insulating layer is ensured to be consistent, and the quality of an electromagnetic wire is improved.

Description

Technical Field

[0001] This utility model belongs to the field of electromagnetic wire production technology, specifically relating to a constant tension wrapping device for electromagnetic wire. Background Technology

[0002] Magnetite wire is a type of conductive metallic wire with an insulated layer, primarily used in the manufacture of coils or windings in electrical products. Magnetite wire consists of a conductor (such as copper, aluminum, or an alloy) and an insulation layer. Depending on the insulation material and manufacturing process, it can be classified as enameled wire, wrapped wire, or inorganic insulated wire. Wrapped wire is made by winding insulating paper, glass fiber, or film around the conductor surface to form an insulation layer. During the wrapping process, uneven tension can cause the wrapping material to loosen or become too tight, resulting in a uniform insulation layer thickness. This poses a risk of partial discharge or breakdown, leading to the failure of the oil-paper insulation structure and affecting equipment safety.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides a constant tension wrapping device for electromagnetic wire, which can monitor the tension of the wrapping tape in real time and adjust the tension of the wrapping tape in real time to ensure uniform tension of the wrapping tape, avoid the wrapping tape from being loose or too tight, ensure the insulation layer thickness is consistent, and improve the quality of electromagnetic wire.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a constant tension wrapping device for electromagnetic wire, including a frame, a base at the top of the frame, and a hollow rotating shaft rotatably connected to the base. A wire passes through the hollow rotating shaft at a constant speed along its axis. A driving device is located on one side of the hollow rotating shaft, driving the hollow rotating shaft to rotate. A wrapping mechanism is connected to the end of the hollow rotating shaft away from the driving device. The wrapping mechanism includes a turntable, a support connected to the turntable, and a belt shaft connected to the support. A belt reel is connected to one end of the belt shaft, and a braking mechanism is connected to the end of the belt shaft away from the belt reel. The braking mechanism brakes the belt shaft to provide tension for the wrapping belt. This utility model is used for wrapping electromagnetic wire. During production, the wire passes through the hollow rotating shaft at a constant speed, and the wrapping mechanism performs a wrapping operation on the wire passing through the hollow rotating shaft. The working steps of the wrapping mechanism include: installing the reel onto the reel shaft, starting the drive device to drive the hollow shaft to rotate, the hollow shaft driving the turntable to rotate, and the reel shaft connected to the turntable rotating around the center of the turntable, spirally winding the wrapping tape on the reel onto the conductor surface to form an insulation layer. During the process of spirally winding the wrapping tape onto the conductor, the braking mechanism brakes the reel shaft, providing stable braking force. At the same time, the turntable rotates at a constant speed to ensure that the tension of the wrapping tape is constant and uniform during the wrapping process, preventing the wrapping tape from becoming loose or too tight, ensuring consistent insulation layer thickness, and improving the quality of the electromagnetic wire.

[0006] Furthermore, in the aforementioned constant tension winding device for electromagnetic wire, the support includes a T-shaped seat and a movable seat. The T-shaped seat is connected to the turntable, and the end of the T-shaped seat away from the turntable is hinged to the movable seat. A drive cylinder is connected between the T-shaped seat and the movable seat. The cylinder body and cylinder shaft of the drive cylinder are respectively axially connected to the T-shaped seat and the movable seat. A displacement sensor is connected to the cylinder body of the drive cylinder, and the displacement sensor is set parallel to the cylinder body. A connecting piece is connected to the cylinder shaft of the drive cylinder, and the moving end of the displacement sensor is fixedly connected to the connecting piece. The drive cylinder is configured as a cylinder with a displacement sensor, which can accurately control the position of the cylinder shaft and achieve precise control. During the winding process, the drive cylinder is activated, and the cylinder shaft of the drive cylinder extends a set length, so that the T-shaped seat and the movable seat form a certain angle, causing the winding tape to spirally wind around the wire. Adjusting the set length of the cylinder shaft of the drive cylinder adjusts the winding angle of the winding tape, thereby adjusting the wrapping rate and winding efficiency of the winding tape to meet different winding requirements and improve the flexibility of the device. During the wrapping process, if the tension changes, the angle between the T-shaped seat and the movable seat changes, which in turn causes the cylinder shaft of the drive cylinder to move. The connecting piece connected to the cylinder shaft of the drive cylinder drives the moving end of the displacement sensor to move. The displacement sensor transmits the displacement signal to the control system. The control system adjusts the braking force of the braking mechanism to reset the drive cylinder, ensuring that the tension of the wrapping tape is stable and preventing the wrapping tape from becoming loose or too tight.

[0007] Furthermore, in the aforementioned constant tension winding device for electromagnetic wire, the braking mechanism includes a brake seat connected to a movable base. A first brake arm and a second brake arm are hinged to both ends of the brake seat. A screw is threadedly connected to the end of the first brake arm away from the brake seat, with one end of the screw connected to a threaded hole in the first brake arm. The other end of the screw passes through a through hole in the second brake arm. A brake motor is connected to the side of the second brake arm away from the first brake arm, and the screw and brake motor are driven together. A spring is sleeved on the outside of the screw, with both ends of the spring abutting against the first and second brake arms respectively. Friction plates are connected to opposite sides of the first and second brake arms, and the friction plates are hinged to the first and second brake arms respectively. When the tension is low, the brake motor drives the screw to rotate, shortening the distance between the first and second brake arms and increasing the friction between the friction plates and the belt shaft. When the tension is high, the brake motor drives the screw to rotate in the opposite direction, increasing the distance between the first and second brake arms and reducing the friction between the friction plates and the belt shaft. This allows for flexible adjustment of the braking force, and thus, flexible adjustment of the winding belt tension.

[0008] Furthermore, in the aforementioned constant tension winding device for electromagnetic wire, the T-shaped seat has a pin hole, and a pin is connected inside the pin hole. The movable seat has an arc-shaped through hole, which is arranged around the hinge point of the T-shaped seat and the movable seat. The pin inside the pin hole passes through the arc-shaped through hole. During the adjustment of the angle between the T-shaped seat and the movable seat, the pin moves along the arc-shaped through hole. The arc-shaped through hole provides a limit for the rotation of the movable seat, preventing the movable seat from rotating too much and thus avoiding damage to the winding device.

[0009] Furthermore, in the aforementioned constant tension winding device for electromagnetic wire, the reel shaft is movably connected to the movable seat via a bushing. A locking mechanism is provided at the end of the reel shaft where the reel is mounted. The locking mechanism includes an expansion ring coaxially connected to the reel shaft. The end of the expansion ring away from the movable seat has an open slot, and the end of the expansion ring with the open slot has a pressure ring. One end of the pressure ring extends into the inner ring of the expansion ring, and the outer wall of the pressure ring gradually increases in size away from the expansion ring. A first pressure plate is provided at the end of the pressure ring away from the expansion ring, and a second pressure plate is provided at the end of the expansion ring away from the pressure ring. The second pressure plate is coaxially connected to the reel shaft. A nut is provided on the side of the first pressure plate away from the pressure ring, and the nut is threadedly connected to the reel shaft. When the reel is fitted onto the expansion ring, the first pressure plate and the nut must be removed. Install the reel, with the reel abutting against one side of the second pressure plate. Insert the first pressure plate onto the reel shaft, tighten the nut, and continue tightening the nut. The nut pushes the first pressure plate towards the second pressure plate. The first pressure plate pushes the pressure ring into the expansion ring. The pressure ring increases the diameter of the expansion ring, causing the outer circumference of the expansion ring to tighten against the inner wall of the reel. This prevents the reel from sliding relative to the reel shaft during the wrapping process, ensuring that the wrapping belt tension remains constant.

[0010] Furthermore, in the aforementioned constant tension winding device for electromagnetic wire, a hinge hole is provided at the end where the first brake arm and brake seat are connected. The hinge shaft connected to the brake seat is hinged within the hinge hole, and the diameter of the hinge hole is larger than the diameter of the hinge shaft connected to the brake seat. This structural configuration provides the first brake arm with room to move, ensuring the friction force of the friction pad.

[0011] Furthermore, in the aforementioned constant tension winding device for electromagnetic wire, the opening slot includes a square slot located near the first pressure plate. The square slot is rectangular and positioned along the axis of the expanding ring. A circular slot is located at the end of the square slot away from the first pressure plate. The circular slot is circular, and its diameter is larger than the short side of the square slot. The circular slot reduces the internal stress during the outward expansion of the expanding ring, prevents tearing during the outward expansion process, and increases the outward expansion range.

[0012] Furthermore, in the aforementioned constant tension winding device for electromagnetic wire, there are two or more supports arranged around the center of the turntable, and the supports, the pulley shaft, and the braking mechanism are correspondingly arranged. The two or more supports, pulley shaft, and braking mechanism can simultaneously wind two or more winding tapes, performing multi-layer winding to meet different winding requirements.

[0013] Furthermore, in the aforementioned constant tension winding device for electromagnetic wire, the driving device includes a drive frame, a worm gear movably connected to the drive frame shaft, a worm wheel connected to the outer side of the hollow rotating shaft, the worm gear and the worm wheel meshing together, a pulley connected to one end of the worm gear, a drive motor connected to the top of the frame, and a pulley connected to the motor shaft of the drive motor. The drive motor and the worm gear are driven together by a belt. The worm gear has a self-locking characteristic, and by driving the hollow rotating shaft to rotate through the worm gear, reverse rotation of the winding mechanism can be prevented.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects: The constant tension winding device for electromagnetic wire uses a braking mechanism to provide stable braking force, ensuring constant and uniform tension of the winding tape during the winding process, preventing the winding tape from becoming loose or too tight, ensuring consistent insulation layer thickness, and improving the quality of the electromagnetic wire. A displacement sensor detects the displacement amplitude of the drive cylinder shaft, and the control system adjusts the braking force of the braking mechanism according to the displacement signal, causing the drive cylinder to reset, ensuring stable tension of the winding tape and preventing it from becoming loose or too tight. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the constant tension wrapping device for electromagnetic wire according to this utility model;

[0016] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0017] Figure 3 This is a schematic diagram of the braking mechanism.

[0018] Figure 4 This is a schematic diagram of the locking mechanism;

[0019] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0020] In the diagram: 1. Frame, 2. Base, 3. Hollow rotating shaft, 4. Drive unit, 41. Drive frame, 42. Worm gear, 43. Drive motor, 51. Turntable, 52. Support, 521. T-shaped seat, 5211. Pin hole, 522. Movable seat, 5221. Arc-shaped through hole, 523. Drive cylinder, 524. Displacement sensor, 525. Connecting piece, 53. Shaft with disc, 54. Braking mechanism, 541. Brake seat, 542. First brake arm, 5421. Hinge hole, 543. Second brake arm, 544. Screw, 545. Brake motor, 546. Spring, 547. Friction plate, 55. Expansion ring, 551. Opening groove, 5511. Square groove, 5512. Round groove, 56. Pressure ring, 57. First pressure plate, 58. Nut, 59. Second pressure plate. Detailed Implementation

[0021] Example 1

[0022] like Figure 1The device shown is a constant tension wrapping device for electromagnetic wire, comprising a frame 1, a base 2 on top of the frame 1, a hollow shaft 3 rotatably connected to the base 2, and a wire passing uniformly along the axis of the hollow shaft 3. A drive device 4 is provided on one side of the hollow shaft 3, driving the hollow shaft 3 to rotate. A wrapping mechanism is connected to the end of the hollow shaft 3 away from the drive device 4. The wrapping mechanism includes a turntable 51, a support 52 connected to the turntable 51, a belt shaft 53 connected to the support 52, a belt reel connected to one end of the belt shaft 53, and a braking mechanism 54 connected to the end of the belt shaft 53 away from the belt reel. The braking mechanism 54 brakes the belt shaft 53 to provide tension to the wrapping belt.

[0023] In this embodiment, the T-shaped seat 521 is provided with a pin hole 5211, and a pin is connected inside the pin hole 5211. The movable seat 522 is provided with an arc-shaped through hole 5221, which is arranged around the hinge point of the T-shaped seat 521 and the movable seat 522. The pin inside the pin hole 5211 passes through the arc-shaped through hole 5221.

[0024] In this embodiment, there are two or more supports 52, which are arranged around the center of the turntable 51. The supports 52, the disc shaft 53 and the braking mechanism 54 are arranged accordingly.

[0025] In this embodiment, the drive device 4 includes a drive frame 41, a worm gear 42 is movably connected to the drive frame 41 shaft, a worm wheel is connected to the outside of the hollow rotating shaft 3, the worm gear 42 and the worm wheel are meshed together, a pulley is connected to one end of the worm gear 42, a drive motor 43 is connected to the top of the frame 1, a pulley is connected to the motor shaft of the drive motor 43, and the drive motor 43 and the worm gear 42 are driven together by a belt.

[0026] like Figure 2 The constant tension winding device for electromagnetic wire shown includes a support 52 comprising a T-shaped base 521 and a movable base 522. The T-shaped base 521 is connected to a turntable 51, and the end of the T-shaped base 521 away from the turntable 51 is hinged to the movable base 522. A drive cylinder 523 is connected between the T-shaped base 521 and the movable base 522. The cylinder body and cylinder shaft of the drive cylinder 523 are respectively axially connected to the T-shaped base 521 and the movable base 522. A displacement sensor 524 is connected to the cylinder body of the drive cylinder 523, and the displacement sensor 524 is arranged parallel to the cylinder body. A connecting piece 525 is connected to the cylinder shaft of the drive cylinder 523, and the moving end of the displacement sensor 524 is fixedly connected to the connecting piece 525. The drive cylinder 523, being a cylinder with a displacement sensor, can precisely control the position of the cylinder shaft, achieving precise control. During the wrapping process, the drive cylinder 523 is activated, and the cylinder shaft of the drive cylinder 523 extends to a set length, so that the T-shaped seat 521 and the movable seat 522 form a certain angle, causing the wrapping tape to spirally wind around the wire. Adjusting the set length of the cylinder shaft of the drive cylinder 523 adjusts the wrapping angle of the wrapping tape, thereby adjusting the wrapping coverage and wrapping efficiency to meet different wrapping requirements and improve the flexibility of the device.

[0027] like Figure 3 The constant tension winding device for electromagnetic wire shown includes a braking mechanism 54 comprising a brake seat 541 connected to a movable base 522. A first brake arm 542 and a second brake arm 543 are hinged to both ends of the brake seat 541. A screw 544 is threadedly connected to the end of the first brake arm 542 away from the brake seat 541. One end of the screw 544 is connected to a threaded hole in the first brake arm 542, and the other end of the screw 544 passes through a through hole in the second brake arm 543. A brake motor 545 is connected to the side of the second brake arm 543 away from the first brake arm 542, and the screw 544 and the brake motor 545 are driven together. A spring 546 is sleeved on the outside of the screw 544, with both ends of the spring 546 abutting against the first brake arm 542 and the second brake arm 543, respectively. Friction plates 547 are connected to opposite sides of the first brake arm 542 and the second brake arm 543, and the friction plates 547 are hinged to both the first brake arm 542 and the second brake arm 543.

[0028] In this embodiment, a hinge hole 5421 is provided at one end of the connection between the first brake arm 542 and the brake seat 541. The hinge shaft connected to the brake seat 541 is hinged within the hinge hole 5421, and the diameter of the hinge hole 5421 is larger than the diameter of the hinge shaft connected to the brake seat 541. This structure provides the first brake arm 542 with room for movement, ensuring the friction force of the friction pads.

[0029] like Figure 4 The constant tension winding device for electromagnetic wire shown includes a reel shaft 53 movably connected to a movable seat 522 via a bushing. A locking mechanism is provided at the end of the reel shaft 53 where it mounts the reel. This locking mechanism includes an expansion ring 55 coaxially connected to the reel shaft 53. The end of the expansion ring 55 away from the movable seat 522 has an open slot 551, and the end of the expansion ring 55 with the open slot 551 has a pressure ring 56. One end of the pressure ring 56 extends into the inner ring of the expansion ring 55, and the outer wall of the pressure ring 56 gradually increases in size away from the expansion ring 55. A first pressure plate 57 is provided at the end of the pressure ring 56 away from the expansion ring 55, and a second pressure plate 59 is provided at the end of the expansion ring 55 away from the pressure ring 56. The second pressure plate 59 is coaxially connected to the reel shaft 53. A nut 58 is provided on the side of the first pressure plate 57 away from the pressure ring 56, and the nut 58 is threadedly connected to the reel shaft 53.

[0030] like Figure 5 The constant tension winding device for electromagnetic wire shown includes an opening slot 551 comprising a square slot 5511 located near the first pressure plate 57. The square slot 5511 is rectangular and runs along the axis of the expansion ring 55. A circular slot 5512 is located at the end of the square slot 5511 furthest from the first pressure plate 57. The circular slot 5512 is circular, and its diameter is larger than the short side of the square slot 5511. The circular slot 5512 reduces internal stress during the expansion process of the expansion ring 55, preventing tearing and increasing the expansion range.

[0031] This invention is used for wrapping electromagnetic wire. During the production process, the wire passes through the hollow rotating shaft 3 at a uniform speed, and the wrapping mechanism performs a wrapping operation on the wire passing through the hollow rotating shaft 3. The working steps of the wrapping mechanism include: removing the first pressure plate 57 and nut 58; installing the reel, with the reel abutting against one side of the second pressure plate 59; fitting the first pressure plate 57 onto the reel shaft 53; and tightening the nut 58. Continuing to tighten the nut 58, the nut 58 pushes the first pressure plate 57 towards the second pressure plate 59. The first pressure plate 57 pushes the pressure ring 56 into the expansion ring 5, causing the diameter of the expansion ring 5 to increase, thus tightening the outer circumference of the expansion ring 5 against the inner wall of the reel.

[0032] The drive unit 4 is started, and the drive motor 43 drives the worm gear 42 to rotate via a belt. The worm gear 42 drives the hollow shaft 3 to rotate, which in turn drives the turntable 51 to rotate. The tape reel shaft 53 connected to the turntable 51 rotates around the center of the turntable 51, spirally winding the wrapping tape on the reel onto the conductor surface to form an insulating layer. During the spiral winding of the wrapping tape onto the conductor, as the tension increases, the angle between the T-shaped seat 521 and the movable seat 522 decreases, the cylinder shaft of the drive cylinder 523 retracts, and the connecting piece 525 connected to the cylinder shaft of the drive cylinder 523 drives the moving end of the displacement sensor 524 to move. The displacement sensor 524 transmits the displacement signal to the control system, which controls the brake motor 545 to drive the screw 544 to rotate counterclockwise. The distance between the first brake arm 542 and the second brake arm 543 increases, reducing the friction between the friction plate 547 and the tape reel shaft 53. The tape unloading speed of the tape reel shaft 53 increases, and the drive cylinder 523 resets. When the tension decreases, the angle between the T-shaped seat 521 and the movable seat 522 increases, the cylinder shaft of the drive cylinder 523 extends, and the connecting piece 525 connected to the cylinder shaft of the drive cylinder 523 drives the moving end of the displacement sensor 524 to move. The displacement sensor 524 transmits the displacement signal to the control system, and the control system controls the brake motor 545 to drive the screw 544 to rotate clockwise, shortening the distance between the first brake arm 542 and the second brake arm 543, increasing the friction between the friction plate 547 and the pulley shaft 53, slowing down the unwinding speed of the pulley shaft 53, and the drive cylinder 523 resets. The above steps are repeated to ensure stable wrapping tape tension and prevent the wrapping tape from becoming loose or too tight.

[0033] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A constant tension wrapping device for electromagnetic wire, characterized by: The utility model provides a kind of winding machine, including rack (1), the bottom of the rack (1) is equipped with base (2), the hollow rotating shaft (3) is rotatably connected in base (2), the hollow rotating shaft (3) has wire along axis uniform speed through;The hollow rotating shaft (3) is equipped with driving device (4) on one side, and driving device (4) drives the rotation of hollow rotating shaft (3);The hollow rotating shaft (3) is connected with winding mechanism in the end away from driving device (4), and the winding mechanism includes rotating disc (51), rotating disc (51) is connected with support (52), support (52) is connected with belt disc shaft (53), one end of belt disc shaft (53) is connected with belt disc, and the end of belt disc shaft (53) away from belt disc is connected with brake mechanism (54), and brake mechanism (54) brakes belt disc shaft (53) to provide tension for winding belt.

2. The constant tension wrapping apparatus for electromagnetic wire of claim 1, wherein: The support (52) includes T-shaped seat (521) and movable seat (522), the T-shaped seat (521) is connected to the rotating disc (51), the T-shaped seat (521) is hingedly connected to the movable seat (522) in the end away from the rotating disc (51), and the T-shaped seat (521) and the movable seat (522) are connected with driving cylinder (523), the cylinder body and the cylinder shaft of driving cylinder (523) are respectively connected with the T-shaped seat (521) and the movable seat (522), the cylinder body of driving cylinder (523) is connected with displacement sensor (524), the displacement sensor (524) is arranged parallel to the cylinder body of driving cylinder (523), and the cylinder shaft of driving cylinder (523) is connected with connecting sheet (525), and the moving end of displacement sensor (524) is fixedly connected with connecting sheet (525).

3. A constant tension wrapping apparatus for electromagnetic wire as defined in claim 2, wherein: The brake mechanism (54) includes brake seat (541) connected to the movable seat (522), the first brake arm (542) and the second brake arm (543) are hingedly connected to the both ends of the brake seat (541) respectively, the screw rod (544) is threadedly connected to the end of the first brake arm (542) away from the brake seat (541), one end of the screw rod (544) is connected to the threaded hole provided in the first brake arm (542), and the end of the screw rod (544) away from the first brake arm (542) penetrates the through hole provided in the second brake arm (543);The brake motor (545) is connected to the side of the second brake arm (543) away from the first brake arm (542), and the screw rod (544) and the brake motor (545) are drivingly connected;The spring (546) is sleeved outside the screw rod (544), and the both ends of the spring (546) abut against the first brake arm (542) and the second brake arm (543) respectively;The friction plate (547) is connected to the opposite sides of the first brake arm (542) and the second brake arm (543) respectively, and the friction plate (547) is hingedly connected with the first brake arm (542) and the second brake arm (543) respectively.

4. The constant tension wrapping apparatus for electromagnetic wire of claim 2, wherein: The T-shaped seat (521) is provided with a pin hole (5211) in which a pin shaft is connected; the movable seat (522) is provided with an arc-shaped through hole (5221) which is arranged around the hinge joint of the T-shaped seat (521) and the movable seat (522), and the pin shaft in the pin hole (5211) penetrates the arc-shaped through hole (5221).

5. The constant tension wrapping apparatus for electromagnetic wire of claim 2, wherein: The tape reel shaft (53) is movably connected to the movable seat (522) through a shaft sleeve, and one end of the tape reel shaft (53) provided with a locking mechanism, the locking mechanism comprises a stretch ring (55) coaxially connected with the tape reel shaft (53), the stretch ring (55) is provided with an open slot (551) at the end away from the movable seat (522), the stretch ring (55) is provided with a pressing ring (56) at the end provided with the open slot (551), the pressing ring (56) extends into the inner ring of the stretch ring (55) at one end, and the outer side wall of the pressing ring (56) is gradually increased away from the stretch ring (55); the pressing ring (56) is provided with a first pressure plate (57) at the end away from the stretch ring (55), the stretch ring (55) is provided with a second pressure plate (59) at the end away from the pressing ring (56), and the second pressure plate (59) is coaxially connected with the tape reel shaft (53); the first pressure plate (57) is provided with a nut (58) on the side away from the pressing ring (56), and the nut (58) is threadedly connected with the tape reel shaft (53).

6. The constant tension wrapping apparatus for electromagnetic wire of claim 3, wherein: The first brake arm (542) and the brake seat (541) are connected at one end and provided with a hinge hole (5421), the hinge shaft connected with the brake seat (541) is hingedly connected in the hinge hole (5421), and the diameter of the hinge hole (5421) is greater than that of the hinge shaft connected with the brake seat (541).

7. The constant tension wrapping apparatus for electromagnetic wire of claim 5, wherein: The open slot (551) comprises a square slot (5511) arranged near the first pressure plate (57), the square slot (5511) is arranged in the shape of a rectangle along the axis of the stretch ring (55), the square slot (5511) is provided with a round slot (5512) at the end away from the first pressure plate (57), the round slot (5512) is arranged in the shape of a circle, and the diameter of the round slot (5512) is greater than that of the short side of the square slot (5511).

8. The constant tension wrapping apparatus for electromagnetic wire of claim 1, wherein: The support (52) is provided with two or more, and the support (52) is arranged around the center of the rotating disc (51), and the support (52), the tape reel shaft (53) and the brake mechanism (54) are correspondingly arranged.

9. The constant tension wrapping apparatus for electromagnetic wire of claim 1, wherein: The driving device (4) comprises a driving frame (41), a worm (42) movably connected to the driving frame (41), a hollow rotating shaft (3) connected to the outside of the driving frame (41), the worm (42) and the worm gear are meshed and connected, one end of the worm (42) is connected with a belt pulley, the top of the rack (1) is connected with a driving motor (43), the motor shaft of the driving motor (43) is connected with a belt pulley, and the driving motor (43) and the worm (42) are drivingly connected through the belt.

Images