Automatic winding device and method for current transformer production

Abstract

The invention relates to the technical field of current transformers, and particularly discloses an automatic winding device and method for current transformer production, the automatic winding device comprises a first base and a second base, the first base and the second base are connected with a limiting mechanism, and the second base is connected with a winding mechanism matched with the limiting mechanism; the winding mechanism is matched with the limiting mechanism, so that the winding wheel and the framework are staggered in a buckle mode and then independently rotate, wires on the winding wheel are regularly wound on the framework, manual whole-process production operation is not needed, an operator can operate multiple mechanisms at the same time, the requirement for the operation experience of the operator is low, and the production efficiency is improved. The labor cost is saved, the production efficiency of products is improved, and the yield of the products is also improved.

Description

Technical Field

[0001] The present invention relates to the technical field of current transformers, and in particular to an automatic winding device and method for producing current transformers. Background Art

[0002] The current transformer is an instrument that converts the large current on the primary side into the small current on the secondary side for measurement based on the principle of electromagnetic induction. The core component of the current transformer is the inductor, which is a component that can convert electrical energy into magnetic energy and store it. The structure of the inductor is similar to that of a transformer, but it has only one winding. The inductor has a certain inductance, which only hinders the change of current. If the inductor is in a state where no current passes through it, it will try to hinder the current from flowing through it when the circuit is connected; if the inductor is in a state where current passes through it, it will try to maintain the current unchanged when the circuit is disconnected. Inductors are also called chokes, reactors, and dynamic reactors.

[0003] Most existing inductor manufacturers use manual production. The operator clamps the frame on a fixed tool, and then manually threads the wire. The operator then uses a handheld hook rod to perform a reciprocating hook operation to wind the wire around the frame. This requires high operating experience from the operator, is time-consuming and labor-intensive, and has low efficiency and yield.

[0004] Therefore, we provide an automatic winding device and method for current transformer production to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved The problem to be solved by the present invention is to provide an automatic winding device and method for producing a current transformer, so as to overcome the defects in the prior art.

[0006] (II) Technical solution In order to solve the technical problem, the present invention provides an automatic winding device for current transformer production, comprising a first base and a second base, wherein the first base and the second base are connected with a limiting mechanism, and the second base is connected with a winding mechanism cooperating with the limiting mechanism; The winding mechanism comprises a C-shaped plate and a mounting plate detachably connected to the second base, an arc-shaped locking plate is hinged on the C-shaped plate, a first limiting wheel is arranged on the arc-shaped locking plate, a second limiting wheel and a third limiting wheel are arranged on the C-shaped plate, the first limiting wheel, the second limiting wheel and the third limiting wheel are distributed in a triangular shape, a winding wheel is rotatably matched between the first limiting wheel, the second limiting wheel and the third limiting wheel, the winding wheel is composed of a first C-shaped wheel and a second C-shaped wheel, and a wire roller frame is rotatably arranged on the second C-shaped wheel; The limiting mechanism includes a connecting frame connected to the first base and the second base, a second reduction motor is installed on the connecting frame, a second matching ring is installed on the output shaft of the second reduction motor, the first base and the second base are respectively detachably connected with the first adjusting rod and the second adjusting rod, the first adjusting rod and the second adjusting rod are both rotatably connected with the first matching ring, the two first matching rings and the second adjusting rods are distributed in a triangle, a skeleton is rotatably matched between the two first matching rings and the second adjusting rods, and the wire material on the wire roller frame in the winding mechanism is matched with the skeleton in the limiting mechanism.

[0007] Furthermore, the winding mechanism also includes a first reduction motor connected to the mounting plate, a tensioning wheel is rotatably arranged on the C-shaped plate, the output wheel of the first reduction motor is cooperated with the second limiting wheel, the third limiting wheel and the tensioning wheel to be connected with a transmission belt, and the transmission belt cooperates with the winding wheel.

[0008] Furthermore, the C-shaped plate is hinged to the arc-shaped locking plate through a hinged locking bolt. When the arc-shaped locking plate and the C-shaped plate are locked together, the C-shaped plate and the arc-shaped locking plate are in the shape of a circular ring with a small notch. When the C-shaped arc-shaped locking plate and the C-shaped plate are released from locking cooperation, the C-shaped plate and the arc-shaped locking plate are in the shape of a large-opening hook.

[0009] Furthermore, the first C-shaped wheel is hinged to the second C-shaped wheel via a hinge bolt, a hook is provided on the second C-shaped wheel, a lock buckle is hinged on the first C-shaped wheel, and the second C-shaped wheel cooperates with the lock buckle on the first C-shaped wheel via the hook.

[0010] Furthermore, when the first C-shaped wheel and the second C-shaped wheel are locked together, the first C-shaped wheel and the second C-shaped wheel are in a circular ring shape; when the first C-shaped wheel and the second C-shaped wheel are unlocked, the second C-shaped wheel and the first C-shaped wheel are in an ε shape.

[0011] Furthermore, a guide rod is provided on the wire roller frame, the first base and the second base adopt a groove frame, and the first adjustment rod and the second adjustment rod are respectively connected to the first base and the second base through a rotating locking bolt.

[0012] Furthermore, the skeletons of the two first matching rings and the second matching rings are arranged horizontally compared to the first base, the winding wheel on the C-shaped plate is arranged vertically compared to the first base, and the winding wheel is in a ring-locking fit with the skeleton.

[0013] A method for producing an automatic winding device for a current transformer, comprising the following steps: S1, flip the arc-shaped locking plate on the C-shaped plate upward, so that the C-shaped plate is in a hook-shaped large opening shape, flip the second C-shaped wheel upward, so that the second C-shaped wheel and the first C-shaped wheel are in an ε-opening shape, there is an empty space between the second C-shaped wheel and the arc-shaped locking plate, and the frame passes through the second C-shaped wheel; S2, the skeleton is firstly abutted against the second matching ring, and then the first adjusting rod and the second adjusting rod are adjusted to make the two first matching rings also abut against the skeleton, so that the skeleton is clamped and limited by the first matching rings and the second matching rings distributed in a triangular shape; S3, by means of the lock buckle cooperating with the hook, the second C-shaped wheel is locked with the first C-shaped wheel to form a circular winding wheel, and then the arc-shaped lock plate is turned down, so that the first limiting wheel presses the winding wheel and then locks the hinged lock bolt, so that the first limiting wheel, the second limiting wheel and the third limiting wheel perform triangular environmental protection limiting on the winding wheel; S4. After the wire on the wire roller rack is pulled out along the guide rod and wound around the outer wall of the skeleton for one circle, the first reduction motor and the second reduction motor are started through the controller. The first reduction motor drives the winding wheel to rotate through the transmission belt, and the second reduction motor drives the skeleton to operate through the second matching ring, so that the wire on the wire roller rack is regularly wound around the skeleton. When the skeleton wire winding is completed, the wire is cut by the shears to complete the automatic winding of the inductor.

[0014] (III) Beneficial effects Compared with the prior art, the automatic winding device and method for current transformer production provided by the present invention have the following beneficial effects: 1. The present invention provides a winding mechanism in conjunction with a limiting mechanism, so that the winding wheel and the frame are arranged in a staggered manner in a buckled manner and rotate independently, so that the wire material on the winding wheel is regularly wound on the frame. There is no need for manual production operation throughout the process. The operator can operate multiple mechanisms at the same time, which has low requirements on the operator's operating experience, saves labor costs, improves product production efficiency and also improves the product yield.

[0015] 2. When the arc-shaped locking plate of the present invention is locked with the C-shaped plate, the C-shaped plate and the arc-shaped locking plate are in the shape of a circular ring with a small notch. When the C-shaped arc-shaped locking plate is unlocked from the C-shaped plate, the C-shaped plate and the arc-shaped locking plate are in the shape of a large-opening hook. The second C-shaped wheel is turned upside down so that the second C-shaped wheel and the first C-shaped wheel are in an ε-opening shape. There is an empty space between the second C-shaped wheel and the arc-shaped locking plate, which is convenient for the skeleton to penetrate the second C-shaped wheel and cooperate with and remove the limiting mechanism. The operation steps are simple and portable, which brings convenience to the operator.

[0016] 3. The present invention makes the skeleton first contact with the second matching ring, and then adjusts the first adjusting rod and the second adjusting rod to make the two first matching rings also contact with the skeleton, so that the skeleton is clamped and limited by the first matching rings and the second matching rings distributed in a triangular shape; through the locking hook, the second C-shaped wheel and the first C-shaped wheel are kept locked to form a circular winding wheel, and then the arc-shaped locking plate is flipped down to make the first limiting wheel press the winding wheel and then lock the hinged locking bolt, so that the first limiting wheel, the second limiting wheel and the third limiting wheel perform triangular environmental protection limiting on the winding wheel; the skeleton and the winding wheel are limited by a simple structural design, which achieves multi-functions without complicated structural design, thereby reducing the manufacturing difficulty and cost of production tooling.

[0017] 4. The overall structural design of the present invention is simple, the cost of parts is low, and the disassembly and assembly steps of the device are simple and clear, which brings convenience to the operator. The operator can operate multiple devices at the same time, improves the production efficiency of the inductor, and saves industrial costs and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A first stereogram of an automatic winding device for producing a current transformer according to the present invention; Figure 2 A second stereoscopic view of an automatic winding device for producing a current transformer according to the present invention; Figure 3 This is a front view of an automatic winding device for current transformer production according to the present invention; Figure 4 A top view of an automatic winding device for producing a current transformer according to the present invention; Figure 5 A side view of an automatic winding device for producing a current transformer according to the present invention; Figure 6 A schematic diagram of the structure of a winding mechanism of an automatic winding device for current transformer production according to the present invention; Figure 7 This is a schematic diagram of the structure of a limit mechanism of an automatic winding device for current transformer production according to the present invention; Figure 8 This is a schematic diagram of a winding mechanism of an automatic winding device for current transformer production according to the present invention in an open state; Fig. 9 This is a schematic diagram of the inductor structure of an automatic winding device for current transformer production according to the present invention; The names of the components corresponding to the various figure marks in the figure are: 1. First base; 2. Second base; 3. C-shaped plate; 301. Arc-shaped lock plate; 3011. First limit wheel; 302. Articulated lock bolt; 303. Second limit wheel; 304. Third limit wheel; 305. Tensioning wheel; 4. Mounting plate; 401. First reduction motor; 402. Transmission belt; 5. First C-shaped wheel; 501. Second C-shaped wheel; 502. Lock buckle; 6. Wire roller frame; 601. Guide rod; 7. First adjusting rod; 8. Second adjusting rod; 9. First matching ring; 10. Connecting frame; 11. Second reduction motor; 12. Second matching ring; 13. Frame. DETAILED DESCRIPTION

[0020] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0022] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0023] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0024] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0025] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0026] See also Figures 1 to 9 The present invention provides an automatic winding device for current transformer production, comprising a first base 1 and a second base 2, the first base 1 and the second base 2 are connected with a limiting mechanism, and the second base 2 is connected with a winding mechanism that cooperates with the limiting mechanism; The winding mechanism includes a C-shaped plate 3 and a mounting plate 4 detachably connected to the second base 2, an arc-shaped locking plate 301 is hinged on the C-shaped plate 3, a first limiting wheel 3011 is arranged on the arc-shaped locking plate 301, a second limiting wheel 303 and a third limiting wheel 304 are arranged on the C-shaped plate 3, the first limiting wheel 3011, the second limiting wheel 303 and the third limiting wheel 304 are distributed in a triangular shape, a winding wheel is rotatably matched between the first limiting wheel 3011, the second limiting wheel 303 and the third limiting wheel 304, the winding wheel is composed of a first C-shaped wheel 5 and a second C-shaped wheel 501, and a wire roller frame 6 is rotatably arranged on the second C-shaped wheel 501; The limiting mechanism includes a connecting frame 10 connected to the first base 1 and the second base 2, a second reduction motor 11 is installed on the connecting frame 10, a second matching ring 12 is installed on the output shaft of the second reduction motor 11, the first base 1 and the second base 2 are respectively detachably connected with the first adjusting rod 7 and the second adjusting rod 8, the first adjusting rod 7 and the second adjusting rod 8 are both rotatably connected with the first matching ring 9, the two first matching rings 9 and the second adjusting rods 8 are distributed in a triangle, a skeleton 13 is rotatably matched between the two first matching rings 9 and the second adjusting rods 8, and the wire material on the wire roller frame 6 in the winding mechanism cooperates with the skeleton 13 in the limiting mechanism.

[0027] See also Figure 6 The winding mechanism also includes a first reduction motor 401 connected to the mounting plate 4, a tensioning wheel 305 is rotatably arranged on the C-shaped plate 3, the output wheel of the first reduction motor 401 is matched with the second limiting wheel 303, the third limiting wheel 304 and the tensioning wheel 305 to be connected with a transmission belt 402, and the transmission belt 402 is matched with the winding wheel.

[0028] See also Figure 6 and Figure 8The C-shaped plate 3 is hinged to the arc-shaped locking plate 301 through a hinged locking bolt 302. When the arc-shaped locking plate 301 is locked with the C-shaped plate 3, the C-shaped plate 3 and the arc-shaped locking plate 301 are in the shape of a circular ring with a small notch. When the C-shaped arc-shaped locking plate 301 is unlocked from the C-shaped plate 3, the C-shaped plate 3 and the arc-shaped locking plate 301 are in the shape of a large-opening hook. The first C-shaped wheel 5 is hinged to the second C-shaped wheel 501 through a hinged bolt. The second C-shaped wheel 501 is provided with a hook. A lock buckle 502 is hinged on the first C-shaped wheel 5. The second C-shaped wheel 501 is matched with the lock buckle 502 on the first C-shaped wheel 5 through the hook. When the first C-shaped wheel 5 and the second C-shaped wheel 501 are locked, the first C-shaped wheel 5 and the second C-shaped wheel 501 are in the shape of a circular ring. When the first C-shaped wheel 5 and the second C-shaped wheel 501 are unlocked, the second C-shaped wheel 501 and the first C-shaped wheel 5 are in an ε shape.

[0029] See also Figures 3 to 8 A guide rod 601 is provided on the wire roller frame 6, the first base 1 and the second base 2 adopt a groove frame, the first adjusting rod 7 and the second adjusting rod 8 are respectively connected to the first base 1 and the second base 2 through a rotating lock bolt, the frame 13 of the two first matching rings 9 and the second matching ring 12 is horizontally arranged compared to the first base 1, and the winding wheel on the C-shaped plate 3 is vertically arranged compared to the first base 1, and the winding wheel and the frame 13 are in a ring-locking fit.

[0030] See also Figures 1 to 9 , a method for producing an automatic winding device for a current transformer, comprising the following steps: S1, flip the arc-shaped locking plate 301 upward on the C-shaped plate 3, so that the C-shaped plate 3 is in a hook-shaped large opening shape, flip the second C-shaped wheel 501 upward, so that the second C-shaped wheel 501 and the first C-shaped wheel 5 are in an ε-opening shape, there is an empty space between the second C-shaped wheel 501 and the arc-shaped locking plate 301, and the frame 13 passes through the second C-shaped wheel 501; S2, the skeleton 13 is firstly brought into contact with the second matching ring 12, and then the first adjusting rod 7 and the second adjusting rod 8 are adjusted to make the two first matching rings 9 also contact the skeleton 13, so that the skeleton 13 is clamped and limited by the first matching rings 9 and the second matching rings 12 distributed in a triangular shape; S3, the second C-shaped wheel 501 is locked with the first C-shaped wheel 5 by cooperating with the hook through the lock buckle 502 to form a circular winding wheel, and then the arc-shaped lock plate 301 is turned down to make the first limiting wheel 3011 press the winding wheel and then lock the hinged lock bolt 302, so that the first limiting wheel 3011, the second limiting wheel 303 and the third limiting wheel 304 perform triangular environmental protection limiting on the winding wheel; S4. After the wire on the wire roller frame 6 is pulled out along the guide rod 601 and wound around the outer wall of the skeleton 13 for one circle, the first reduction motor 401 and the second reduction motor 11 are started through the controller. The first reduction motor 401 drives the winding wheel to rotate through the transmission belt 402, and the second reduction motor 11 drives the skeleton 13 to operate through the second matching ring 12, so that the wire on the wire roller frame 6 is regularly wound around the skeleton 13. When the wire winding of the skeleton 13 is completed, the wire is cut by the shears to complete the automatic winding of the inductor.

[0031] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0032] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An automatic winding device for current transformer production, characterized in that: It comprises a first base (1) and a second base (2), wherein the first base (1) and the second base (2) are connected with a limiting mechanism, and the second base (2) is connected with a winding mechanism that cooperates with the limiting mechanism; The winding mechanism comprises a C-shaped plate (3) and a mounting plate (4) which are detachably connected to the second base (2); an arc-shaped locking plate (301) is hingedly connected to the C-shaped plate (3); a first limiting wheel (3011) is arranged on the arc-shaped locking plate (301); a second limiting wheel (303) and a third limiting wheel (304) are arranged on the C-shaped plate (3); the first limiting wheel (3011), the second limiting wheel (303) and the third limiting wheel (304) are distributed in a triangular shape; a winding wheel is rotatably matched between the first limiting wheel (3011), the second limiting wheel (303) and the third limiting wheel (304); the winding wheel is composed of a first C-shaped wheel (5) and a second C-shaped wheel (501); a wire roller frame (6) is rotatably arranged on the second C-shaped wheel (501); The limiting mechanism comprises a connecting frame (10) connected to the first base (1) and the second base (2); a second reduction motor (11) is mounted on the connecting frame (10); a second matching ring (12) is mounted on the output shaft of the second reduction motor (11); a first adjusting rod (7) and a second adjusting rod (8) are detachably connected to the first base (1) and the second base (2), respectively; the first adjusting rod (7) and the second adjusting rod (8) are both rotatably connected to a first matching ring (9); the two first matching rings (9) and the second adjusting rod (8) are distributed in a triangular shape; a frame (13) is rotatably matched between the two first matching rings (9) and the second adjusting rod (8); the wire material on the wire roller frame (6) in the winding mechanism matches the frame 13 in the limiting mechanism.

2. The automatic winding device for current transformer production according to claim 1, characterized in that: The winding mechanism further comprises a first reduction motor (401) connected to the mounting plate (4); a tension wheel (305) is rotatably arranged on the C-shaped plate (3); an output wheel of the first reduction motor (401) cooperates with a second limiting wheel (303), a third limiting wheel (304) and the tension wheel (305) to be connected with a transmission belt (402); and the transmission belt (402) cooperates with the winding wheel.

3. The automatic winding device for current transformer production according to claim 1, characterized in that: The C-shaped plate (3) is hingedly connected to the arc-shaped locking plate (301) via a hinged locking bolt (302); when the arc-shaped locking plate (301) and the C-shaped plate (3) are locked together, the C-shaped plate (3) and the arc-shaped locking plate (301) are in the shape of a small-notched circular ring; when the C-shaped arc-shaped locking plate (301) and the C-shaped plate (3) are released from the locking cooperation, the C-shaped plate (3) and the arc-shaped locking plate (301) are in the shape of a large-opening hook.

4. The automatic winding device for current transformer production according to claim 1, characterized in that: The first C-shaped wheel (5) is hinged to the second C-shaped wheel (501) via a hinge bolt, the second C-shaped wheel (501) is provided with a hook, the first C-shaped wheel (5) is hinged with a lock buckle (502), and the second C-shaped wheel (501) cooperates with the lock buckle (502) on the first C-shaped wheel (5) via the hook.

5. The automatic winding device for current transformer production according to claim 4, characterized in that: When the first C-shaped wheel (5) and the second C-shaped wheel (501) are locked together, the first C-shaped wheel (5) and the second C-shaped wheel (501) are in a circular ring shape; when the first C-shaped wheel (5) and the second C-shaped wheel (501) are unlocked, the second C-shaped wheel (501) and the first C-shaped wheel (5) are in an ε shape.

6. The automatic winding device for current transformer production according to claim 1, characterized in that: The wire roller frame (6) is provided with a guide rod (601), the first base (1) and the second base (2) adopt a slot frame, and the first adjustment rod (7) and the second adjustment rod (8) are respectively connected to the first base (1) and the second base (2) via a rotating locking bolt.

7. The automatic winding device for current transformer production according to claim 1, characterized in that: The skeletons (13) of the two first matching rings (9) and the second matching ring (12) are arranged horizontally relative to the first base (1), the winding wheel on the C-shaped plate (3) is arranged vertically relative to the first base (1), and the winding wheel and the skeleton (13) are in a buckle fit.

8. A method for producing an automatic winding device for a current transformer, applied to the automatic winding device for producing a current transformer as claimed in claims 1 to 7, characterized in that: The steps include: S1, turning the arc-shaped locking plate (301) upward on the C-shaped plate (3) so that the C-shaped plate (3) is in the shape of a large hook opening, turning the second C-shaped wheel (501) upward so that the second C-shaped wheel (501) and the first C-shaped wheel (5) are in the shape of an ε opening, and there is a space between the second C-shaped wheel (501) and the arc-shaped locking plate (301), and passing the frame (13) through the second C-shaped wheel (501); S2, the frame (13) is first brought into contact with the second matching ring (12), and then the first adjustment rod (7) and the second adjustment rod (8) are adjusted so that the two first matching rings (9) also contact the frame (13), so that the frame (13) is clamped and limited by the first matching rings (9) and the second matching rings (12) distributed in a triangular shape; S3, the second C-shaped wheel (501) and the first C-shaped wheel (5) are locked together to form a circular winding wheel by means of the lock buckle (502) and the hook, and then the arc-shaped lock plate (301) is turned down so that the first limiting wheel (3011) is pressed against the winding wheel and then the hinged lock bolt (302) is locked, so that the first limiting wheel (3011), the second limiting wheel (303) and the third limiting wheel (304) perform triangular environmental protection limiting on the winding wheel; S4, after the wire on the wire roller frame (6) is pulled out along the guide rod (601) and wound along the outer wall of the frame (13) for one circle, the first reduction motor (401) and the second reduction motor (11) are started through the controller, the first reduction motor (401) drives the winding wheel to rotate through the transmission belt (402), and the second reduction motor (11) drives the frame (13) to operate through the second matching ring (12), so that the wire on the wire roller frame (6) is regularly wound on the frame (13), and when the wire winding on the frame (13) is completed, the wire is cut by a shearing tool, and the automatic winding of the inductor is completed.

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