A circular magnetic ring winding device

Abstract

The utility model relates to the technical field of coil winding, specifically relates to a circular magnetic ring coil winding device, including the machine table and the disc seat of verticality of being equipped with on it, the tangent mouth of output wire material is equipped with in the disc seat axle center, is equipped with the sliding frame on the disc surface, and the sliding frame is arranged with a plurality of magnetic rings that can be kept close equal interval by magnetic force automatically, the disc surface still is equipped with angle guide assembly and curvature guide assembly, and the helix angle and curvature needed for wire material are respectively given to the inclined block and guide wheel in the corresponding assembly, make it stably wind on the magnetic ring. The cutting mechanism includes the cutting knife and transmission assembly, when the cutting knife drops and cuts off the wire, can drive the extrusion assembly on the sliding frame through the transmission assembly, makes the inserted strip insert and extrudes the magnetic ring that has wound up completely. The utility model realizes the full process automation from winding, cutting to finished product drop, effectively improves production efficiency and product consistency.

Description

Technical Field

[0001] This utility model relates to the field of coil winding technology, and in particular to a device for winding a circular magnetic ring coil. Background Technology

[0002] Magnetic ring coils, also known as magnetic ring inductors, are fundamental passive components in electronic circuits that enable the conversion between electrical and magnetic energy. They are widely used in filtering, energy storage, and electromagnetic interference suppression. Based on the material of the magnetic ring, they can be classified as ferrite rings, amorphous / nanocrystalline rings, alloy rings, etc., to meet different frequency and power requirements. Based on the winding structure, they can be classified as single-layer helical windings, multi-layer close-wound windings, etc. Regardless of the type, their core structure consists of an inductor formed by winding insulated wires around a toroidal magnetic ring with high permeability. These magnetic rings are usually hollow, and their outlines include, but are not limited to, circles, rectangles, or other polygons, with corresponding variations in the shape of the inner hole. The uniformity, tightness, and consistency of the winding directly determine the final inductance, quality factor, and operational stability of the coil.

[0003] Currently, the process of winding wire on magnetic rings still largely relies on manual labor or semi-automated equipment. Operators manually pass the wire through the inner hole of the magnetic ring and spirally wind it at a specific pitch, resulting in high labor intensity, poor winding consistency, and low production efficiency. Some commercially available automatic winding equipment often has limited functionality, typically only performing basic winding actions. After winding one magnetic ring, manual intervention is often required to cut the wire, remove the finished product, and reload, making continuous and efficient mass production difficult. Furthermore, existing equipment lacks precise control over the spiral angle and curvature of the wire, easily leading to loose and uneven winding, affecting the coil's inductance characteristics. To further improve automation, some solutions attempt to integrate cutting and unloading functions, but these often use independent drive sources, resulting in poor coordination and high costs. Therefore, there is an urgent need in this field for a high-efficiency winding device that integrates precise winding, automatic cutting, and finished product extrusion to achieve a smooth, stable, and automated entire magnetic ring coil production process. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a circular magnetic ring coil winding device to solve the problems of low automation and poor connection between processes in existing magnetic ring coil winding equipment, which leads to low production efficiency.

[0005] To achieve the above objectives, this utility model provides a circular magnetic ring coil winding device, including a machine base. A circular base is vertically mounted on the upper part of the machine base, and a channel is provided at the center of the circular base for the wire to be wound to pass through. A sliding frame is provided on the surface of the circular base, and a plurality of magnetic rings are slidably mounted inside the sliding frame for winding the wire. An angle guiding component is provided on the surface of the circular base, and the angle guiding component includes a ramp block for changing the rise angle of the wire. A curvature guiding component is provided on the surface of the circular base, and the curvature guiding component includes a guide wheel for guiding the bending of the wire. A cutting mechanism is provided on the surface of the circular base, and the cutting mechanism includes a cutter for slidingly cutting the wire. The cutting mechanism further includes a transmission assembly, and the sliding frame includes a dropping assembly; when the cutter descends to cut the wire, the cutting mechanism drives the dropping assembly through the transmission assembly to drop the wound magnetic ring.

[0006] According to the technical solution provided in this application example, a collection box is provided on one side of the machine tool for collecting the wound magnetic ring.

[0007] According to the technical solution provided in this application example, a wire cutter is provided at the channel of the disc seat axis for outputting the wire. A side groove is provided on one side of the wire cutter for cooperating with the cutter to cut the wire. A feeding slope is fixedly installed at the lower part of the disc surface of the disc seat for guiding the wound magnetic ring into the collection box.

[0008] According to the technical solution provided in this application, the sliding frame includes a lower sliding frame and an upper sliding frame, and the vertical cross-sections of both are symmetrically U-shaped. The lower sliding frame and the upper sliding frame are used to limit the magnetic ring arranged between them. The bottom of the lower sliding frame is provided with a support leg, and the middle of the sliding frame is provided with a conveyor belt. The rear of the support leg is equipped with a servo motor for driving the conveyor belt. The conveyor belt is used to drive the magnetic ring to move along the sliding frame towards the end closer to the tangent nozzle.

[0009] According to the technical solution provided in this application, the extrusion assembly is disposed on the top of the upper slide. The extrusion assembly includes a housing, a cover plate, and an insert that is slidably inserted between the housing and the cover plate. The upper slide has an opening for slidingly inserting the insert, and the insert is used to insert and extrude the wound magnetic ring.

[0010] According to the technical solution provided in this application, a protrusion is slidably inserted into the cover plate, and a slanted groove is provided on one side of the insert strip for fitting the protrusion. A first spring is connected between the protrusion and the cover plate. When the insert strip is pressed down, the first spring contracts, and the protrusion disengages from the slanted groove.

[0011] According to the technical solution provided in this application, the angle guide component includes a fixed block and a ramp block. The fixed block is fixedly installed on the disk surface of the disk base, and the ramp block is hinged to one end of the fixed block near the disk base.

[0012] According to the technical solution provided in this application, the cutting mechanism includes a second slide bar fixedly installed on the disc base surface, a second slider slidably sleeved on the outside of the second slide bar, a cutter fixedly inserted into one end of the second slider near the wire, a second pneumatic rod installed on the second slide bar, the output end of the second pneumatic rod being connected to the second slider, and the second pneumatic rod being used to drive the cutter to slide.

[0013] According to the technical solution provided in this application, the transmission assembly includes an internal rack, several spur gears, and an external rack fixedly mounted on the surface of the disc base. The internal rack, the external rack, and the insert are parallel to each other. The internal rack and the external rack are arranged opposite to each other and simultaneously mesh with the same spur gear. The spur gear is rotatably connected to one side of the second slider. All the spur gears do not contact each other. The external rack is slidably connected to the outside of the extrusion assembly. A pressure block is fixedly provided on the upper part of the external rack, and a second spring is connected between the pressure block and the insert.

[0014] The beneficial effects of this utility model are: 1. This circular magnetic ring coil winding device comprises a disc base, a sliding frame, a ramp block, guide wheels, a cutter, a transmission assembly, and insert bars. Multiple magnetic rings are slidably inserted into the sliding frame. During operation, the wire starts from the center of the disc base and is guided sequentially by the guide wheels and ramp blocks to obtain the required curvature and helix angle, thus stably spirally winding onto the magnetic rings within the sliding frame. When the winding of one side of the magnetic ring is complete, the cutter descends to cut the wire, and the transmission assembly drives the insert bars to descend, automatically separating and dislodging the finished magnetic ring from the ring to be wound. This device achieves a high degree of automation throughout the entire magnetic ring coil winding process, improving production efficiency and product consistency, and reducing labor costs and intervention.

[0015] 2. This circular magnetic ring coil winding device, through a sliding frame and conveyor belt, allows multiple magnetic rings to be arranged side-by-side within the sliding frame. Under the mutual attraction of magnetic forces, they automatically maintain a tight and equidistant arrangement. Furthermore, the conveyor belt only needs to act on a portion of the magnetic rings in the queue to achieve stable and synchronous movement of the entire queue through magnetic coupling. This device cleverly utilizes the inherent magnetism of the magnetic rings, thereby eliminating the need for complex mechanical limiting structures, simplifying the device, and improving the reliability of feeding. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model embodiment with the sliding frame removed; Figure 3 for Figure 1 A magnified view of a section at point A in the middle; Figure 4 This is a rear view structural diagram of an embodiment of the present utility model; Figure 5 This is a schematic diagram of the tangent nozzle in an embodiment of the present invention; Figure 6 This is a front view of the sliding frame and the cutting mechanism in an embodiment of this utility model; Figure 7 This is a partial disassembled structural diagram of the cutting mechanism in an embodiment of this utility model; Figure 8 This is a schematic diagram of the disassembled structure of the transmission component in an embodiment of the present invention; Figure 9 This is a schematic diagram of the disassembled structure at the extrusion component in an embodiment of this utility model.

[0018] The diagram is marked as follows: 100. Machine base; 110. Collection box; 200. Disc base; 210. Cutting nozzle; 211. Side groove; 220. Discharge slope; 300, Sliding frame; 301, Magnetic ring; 310, Lower slide frame; 311, Support leg; 312, Support plate; 313, Servo motor; 320, Upper slide frame; 321, Insert; 322, Connecting rod; 330, Conveyor belt; 340, Extrusion assembly; 341, Housing; 342, Cover plate; 3420, Protrusion; 3421, First spring; 343, Insert bar; 3430, Second spring; 3431, Inclined groove; 400. Angle guide component; 410. Fixing block; 411. Ramp block; 500, Curvature guide assembly; 510, First slide rail; 520, First slider; 521, Extension seat; 5210, Guide wheel; 530, First pneumatic rod; 600. Cutting mechanism; 610. Second slide rail; 620. Second slider; 621. Cutter; 630. Second pneumatic rod; 640. Transmission assembly; 641. Internal rack; 642. Flat gear; 643. External rack; 6430. Pressure block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] like Figures 1-9 As shown, a circular magnetic ring coil winding device includes a machine base 100. A disc base 200 is vertically arranged on the upper part of the machine base 100. A channel is provided at the axis of the disc base 200 for the wire to be wound to pass through. A sliding frame 300 is provided on the disc surface of the disc base 200. A plurality of magnetic rings 301 are arranged inside the sliding frame 300 for winding the wire. Since the multiple magnetic rings 301 are magnetic, when they are arranged side by side in the sliding frame 300, they can automatically maintain a tight and equally spaced arrangement under the mutual attraction of magnetic forces. An angle guide component 400 is provided on the disc surface of the disc base 200. The angle guide component 400 includes a ramp. Block 411, the ramp block 411 is used to change the helix angle of the wire travel; the disk surface of the disc base 200 is provided with a curvature guide component 500, the curvature guide component 500 includes a guide wheel 5210, the guide wheel 5210 is used to guide the wire to bend; when the wire contacts the guide wheel 5210 during forward travel, its travel path is guided and bends towards the inside of the magnetic ring 301, thereby obtaining the required helical curvature; subsequently, the wire passes through the inclined surface of the ramp block 411 and is given a spiral upward trajectory, thereby obtaining the required helix angle; the disk surface of the disc base 200 is provided with a cutting mechanism 600, the cutting mechanism 600 includes a cutter 621, used for sliding cutting the wire; The cutting mechanism 600 also includes a transmission assembly 640, and the sliding frame 300 includes a dropping assembly 340; when the cutter 621 descends to cut the wire, the cutting mechanism 600 drives the dropping assembly 340 to drop the wound magnetic ring 301 through the transmission assembly 640.

[0022] Preferably, a collection box 110 is provided on one side of the machine 100 for collecting the wound magnetic rings 301.

[0023] The disc base 200 has a wire cutter 210 at the channel of the shaft for outputting wire. The upper side of the wire cutter 210 has a side groove 211 for cutting the wire with the cutter 621. The disc base 200 has a feeding slope 220 fixedly installed at the lower part of the disc surface for guiding the wound magnetic ring 301 into the collection box 110.

[0024] It should be noted that the wire is powered and fed to this device by a separate wire supply mechanism (not shown in the figure). This wire supply mechanism is prior art and may include, for example, a wire reel, a tension controller, and a motor-driven wire feeding wheel assembly, which continuously feeds the wire at a constant or controlled tension and speed to the cutting nozzle 210 at the center of the disc seat 200. The improvement of this invention lies in the process after receiving the wire from the cutting nozzle 210.

[0025] In this embodiment, as Figure 4 and Figure 6 As shown, the sliding frame 300 includes a lower sliding frame 310 and an upper sliding frame 320, both of which have symmetrical U-shaped vertical cross-sections. The lower sliding frame 310 and the upper sliding frame 320 are used to limit the magnetic rings 301 arranged between them. A support leg 311 is provided at the bottom of the lower sliding frame 310, and a conveyor belt 330 is provided in the middle of the sliding frame 300. A servo motor 313 for driving the conveyor belt 330 is installed at the rear of the support leg 311. The conveyor belt 330 is used to drive the magnetic rings 301 along... The sliding frame 300 moves towards the end closer to the tangent nozzle 210; when multiple magnetic rings 301 are arranged side by side in the sliding frame 300, they can automatically maintain a tight and equally spaced arrangement under the mutual attraction of magnetic force. The conveyor belt 330 only acts on a portion of the magnetic rings in the middle of the queue, and can drive the entire magnetic ring 301 queue to move synchronously through magnetic coupling; the servo motor 313 is also equipped with an angle sensor, which can control the conveying stroke of the conveyor belt 330.

[0026] Preferably, the extrusion assembly 340 is disposed on the top of the upper slide 320. The extrusion assembly 340 includes a housing 341, a cover plate 342, and an insert 343 that is slidably inserted between the housing 341 and the cover plate 342. The upper slide 320 has an insertion port 321 for slidingly inserting the insert 343. The insert 343 is used to insert between two magnetic rings 301 and extrude the wound magnetic rings 301 at the end of the queue of the slide 300.

[0027] In this embodiment, as Figure 8 and Figure 9 As shown, a protrusion 3420 is slidably inserted into the cover plate 342, and a groove 3431 is provided on one side of the insert 343. The groove 3431 is used to engage with the protrusion 3420. A first spring 3421 is connected between the protrusion 3420 and the cover plate 342. When the insert 343 is pressed down, only when the downward pressure of the insert 343 is large enough, the inclined side of the groove 3431 on it forms an inclined surface engagement with the end of the protrusion 3420. This engagement forces the protrusion 3420 to overcome the elastic force of the first spring 3421 and undergo radial displacement until the protrusion 3420 disengages from the groove 3431. Only then can the insert 343 be released and continue to descend into the insertion port 321.

[0028] Preferably, the angle guide assembly 400 includes a fixed block 410 and a ramp block 411. The fixed block 410 is fixedly mounted on the disk surface of the disk base 200, and the ramp block 411 is hinged to one end of the fixed block 410 near the disk base, so that the angle of the ramp block 411 can be adjusted within a small range, thereby changing the helix angle of the wound wire.

[0029] Preferably, the cutting mechanism 600 includes a second slide bar 610 fixedly installed on the surface of the disc base 200, a second slider 620 slidably sleeved on the outside of the second slide bar 610, a cutter 621 fixedly inserted into the end of the second slider 620 near the wire, a second pneumatic rod 630 installed on the second slide bar 610, the output end of the second pneumatic rod 630 connected to the second slider 620, and the second pneumatic rod 630 used to drive the cutter 621 to slide downward and cut into the side groove 211.

[0030] In this embodiment, as Figure 8 and Figure 9As shown, the transmission assembly 640 includes an internal rack 641, several spur gears 642, and an external rack 643, all fixedly mounted on the surface of the disc base 200. The internal rack 641, external rack 643, and insert 343 are parallel to each other. The internal rack 641 and external rack 643 are arranged opposite to each other and simultaneously mesh with the same spur gear 642. The spur gear 642 is rotatably connected to one side of the second slider 620. All spur gears 642 do not contact each other. Setting at least two spur gears 642 can make the transmission effect more reliable. The external rack 643 is slidably connected to the outside of the extrusion assembly 340 through the cooperation of the slide bar and the slide groove. A pressure block 6430 is fixedly provided on the upper part of the external rack 643. A second spring 3430 is connected between the pressure block 6430 and the insert 343.

[0031] Specifically, when the second slider 620 descends, it drives the spur gear 642 to descend as well. The spur gear 642 is driven to rotate by the fixedly mounted internal rack 641. The rotation of the spur gear 642 drives the external rack 643 to descend relative to the outer shell 341, causing the pressure block 6430 to descend and press down the second spring 3430. As a result, the insert 343 accumulates downward pressure through the elastic force of the second spring 3430, which, in conjunction with the protrusion 3420 and the first spring 3421, delays the release of the descending insert 343. This staggers the time when the cutter 621 cuts the wire, thus squeezing out the cut and wound magnetic ring 301. Through the cooperation of the aforementioned transmission component 640, the cutting and descending stroke of the cutter 621 can also be amplified to the insert 343, allowing the insert 343 to obtain sufficient insertion depth into the insertion socket 321, which facilitates the squeezing out of the wound magnetic ring 301.

[0032] Working principle: To ensure a continuous and uniform output of the wire used for winding at the tangent, a magnetic ring 301 is placed at the end of the sliding frame 300 queue. The first pneumatic rod 530 extends, driving the guide wheel 5210 to move in front of the wire. When the front end of the wire touches the guide wheel 5210, it bends inward towards the magnetic ring 301 to obtain a helical curvature, and then contacts the inclined surface of the ramp block 411 to obtain a helical rise, thus spiraling around the magnetic ring 301. After the magnetic ring 301 at the end of the queue is wound, the wire stops moving, and the second pneumatic rod 630 extends to carry... The moving cutter cuts the wire downwards, and at the same time, the transmission component 640 delays the movement of the insert 343 downwards, squeezing out the magnetic ring 301 wound at the end of the queue, causing it to fall into the collection box 110. At this time, the conveyor belt 330 is started, and the matching angle sensor causes the magnetic rings arranged in the sliding frame 300 to move forward synchronously, so that the next unwound magnetic ring 301 moves to the previously wound position, and the conveyor belt 330 is paused, and the wire continues to be output, returning to the above-mentioned step of the wire contacting the guide wheel 5210, and then automatically winding the magnetic rings 301 arranged on the sliding frame 300 in sequence.

[0033] It is important to understand that the terms magnetic ring and circular magnetic ring are not intended to limit them to an absolute geometric circle. They refer broadly to all ring-shaped magnetic elements with a central through-hole, whose external contours can include, but are not limited to, circles, ellipses, racetrack shapes, or rounded polygons. The device of this invention is applicable to magnetic cores with such general ring-shaped structures.

[0034] Furthermore, it should be noted that the servo motor 313, conveyor belt 330, first pneumatic rod 530, second pneumatic rod 630, angle sensor, and matching controller involved in this invention are all general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection methods should refer to the working principle in this invention. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0036] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A circular magnetic ring coil winding device, comprising a machine base (100), characterized in that, A disc base (200) is vertically mounted on the upper part of the machine base (100). A channel is provided at the center of the disc base (200) for the wire to be wound to pass through. A sliding frame (300) is provided on the disc surface of the disc base (200). Several magnetic rings (301) are slidably arranged inside the sliding frame (300) for winding the wire. An angle guide assembly (400) is provided on the disc surface of the disc base (200). 0) Includes a ramp block (411), which is used to change the rise angle of the wire travel; the disk seat (200) is provided with a curvature guide component (500) on the disk surface, the curvature guide component (500) includes a guide wheel (5210), the guide wheel (5210) is used to guide the wire to bend; the disk seat (200) is provided with a cutting mechanism (600) on the disk surface, the cutting mechanism (600) includes a cutter (621), which is used to slide and cut the wire; The cutting mechanism (600) further includes a transmission assembly (640), and the sliding frame (300) includes a deflection assembly (340); when the cutter (621) descends to cut the wire, the cutting mechanism (600) drives the deflection assembly (340) through the transmission assembly (640) to deflect the wound magnetic ring (301).

2. The circular magnetic ring coil winding device according to claim 1, characterized in that, A collection box (110) is provided on one side of the machine (100) for collecting the wound magnetic ring (301).

3. The circular magnetic ring coil winding device according to claim 2, characterized in that, A wire cutter (210) is provided at the channel of the axis of the disc base (200) for outputting the wire. A side groove (211) is provided on one side of the wire cutter (210) for cooperating with the cutter (621) to cut the wire. A feeding slope (220) is fixedly installed at the lower part of the disc surface of the disc base (200) for guiding the wound magnetic ring (301) into the collection box (110).

4. The circular magnetic ring coil winding device according to claim 3, characterized in that, The sliding frame (300) includes a lower slide (310) and an upper slide (320), both of which have symmetrical U-shaped vertical cross sections. The lower slide (310) and the upper slide (320) are used to limit the magnetic ring (301) arranged between them. The lower slide (310) is provided with a support leg (311) at its bottom. The sliding frame (300) is provided with a conveyor belt (330) in the middle. The support leg (311) is equipped with a servo motor (313) for driving the conveyor belt (330) at its rear. The conveyor belt (330) is used to drive the magnetic ring (301) to move along the sliding frame (300) towards the end closer to the tangent nozzle (210).

5. A circular magnetic ring coil winding device according to claim 4, characterized in that, The extrusion assembly (340) is disposed on the top of the upper slide (320). The extrusion assembly (340) includes a housing (341), a cover plate (342), and an insert (343) that is slidably inserted between the housing (341) and the cover plate (342). The upper slide (320) has an insertion port (321) for slidingly inserting the insert (343). The insert (343) is used to insert and extrude the wound magnetic ring (301).

6. A circular magnetic ring coil winding device according to claim 5, characterized in that, A protrusion (3420) is slidably inserted into the cover plate (342), and a groove (3431) is provided on one side of the insert (343). The groove (3431) is used to cooperate with the insertion of the protrusion (3420). A first spring (3421) is connected between the protrusion (3420) and the cover plate (342). When the insert (343) is pressed down, the first spring (3421) contracts, and the protrusion (3420) disengages from the groove (3431).

7. A circular magnetic ring coil winding device according to claim 6, characterized in that, The angle guide assembly (400) includes a fixed block (410) and a ramp block (411). The fixed block (410) is fixedly mounted on the disk surface of the disk base (200), and the ramp block (411) is hinged to one end of the fixed block (410) near the disk base.

8. A circular magnetic ring coil winding device according to claim 7, characterized in that, The cutting mechanism (600) includes a second slide bar (610) fixedly installed on the surface of the disc base (200). A second slider (620) is slidably sleeved on the outside of the second slide bar (610). The cutter (621) is fixedly inserted into one end of the second slider (620) near the wire. A second pneumatic rod (630) is installed on the second slide bar (610). The output end of the second pneumatic rod (630) is connected to the second slider (620). The second pneumatic rod (630) is used to drive the cutter (621) to slide.

9. A circular magnetic ring coil winding device according to claim 8, characterized in that, The transmission assembly (640) includes an internal rack (641), several spur gears (642), and an external rack (643) fixedly mounted on the surface of the disc base (200). The internal rack (641), the external rack (643), and the insert (343) are parallel to each other. The internal rack (641) and the external rack (643) are arranged opposite to each other and simultaneously mesh with the same spur gear (642). The spur gear (642) is rotatably connected to one side of the second slider (620). All the spur gears (642) do not contact each other. The external rack (643) is slidably connected to the outside of the extrusion assembly (340). A pressure block (6430) is fixedly mounted on the upper part of the external rack (643). A second spring (3430) is connected between the pressure block (6430) and the insert (343).

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