A fully automatic coil winding machine

Abstract

The present invention provides a fully automatic coil winding machine, comprising a winding ring, a wire storage ring, a first power mechanism suitable for driving the winding ring to move, and a second power mechanism suitable for driving the wire storage ring to move, the second power mechanism having a first working mode corresponding to a wire storage state, and a second working mode corresponding to a winding state. During the wire storage process, the second power mechanism can drive the wire storage ring to store wire; and during the winding process, the second power mechanism is suitable for outputting a reverse torque to the wire storage ring, and the reverse pulling force generated by the reverse torque on the wire storage ring is opposite to the forward pulling force generated by the winding ring on the wire storage ring, and the reverse pulling force is smaller than the forward pulling force, so that the wire always maintains a certain tension, thereby improving the quality of the product. In this way, only one second power mechanism needs to be provided, which can not only complete the wire storage action, but also keep the wire tension during winding, and has the advantages of simple structure and low production cost.

Description

Technical Field

[0001] The present invention relates to the technical field of mutual inductor coil processing and toroidal transformers, and in particular to a fully automatic coil winding machine. Background Art

[0002] A winding machine is a device that winds a linear object onto a workpiece to be determined. It is usually used for winding inductor coils. It winds enameled copper wire (enameled wire for short) onto a coil ring frame to form an inductor coil.

[0003] The Chinese patent document CN109686562A previously applied by the applicant discloses a winding machine, such as Figure 8 As shown, it includes a winding ring 01, a wire storage ring 02, a first power device and a second power device. The first power device drives the wire storage ring 02 to rotate so as to wind the enameled wire 03 around the outer periphery of the wire storage ring 02. The second power device drives the winding ring 01 to rotate so as to wind the enameled wire 03 around the workpiece 04. The first power device is movably installed on the support platform, and has a driving position that approaches and drives the wire storage ring to store wire, and an empty position away from the wire storage ring when winding wire. The inventor found in actual use that although a friction plate (not shown in the figure) is provided which can rub against the wire storage ring 02 and is used to keep the enameled wire 03 in a certain tension, the coil may still be wound loosely. The reason is that when winding, the workpiece 04 is located at the notch 05 on one side of the winding ring 01, so that the center of the workpiece 04 is eccentric to the rotation center of the winding ring 01. When the wire hanging wheel 06 of the winding ring 01 drives the enameled wire 03 to rotate counterclockwise from the near point A close to the notch 05 to the far point B, the enameled wire 03 outside the wire storage ring 02 is gradually stretched, and due to the friction The friction plate's resistance to the wire storage ring 02 keeps the enameled wire 03 in a tensioned state. As the wire pulley 06 drives the enameled wire 03 counterclockwise from point B near the notch 05 to point A, the distance between the wire pulley 06 and point A gradually decreases, becoming smaller than the length of the enameled wire 03 outside the wire storage ring 02. This prevents the enameled wire 03 from being pulled out of the wire storage ring 02. At this point, the friction plate's resistance to the wire storage ring 02 merely keeps the ring stationary, leaving the enameled wire 03 outside the ring without tension. This results in the coil still being wound loosely. Furthermore, the outer wall of the wire storage ring is provided with a wire hanging opening for securing one end of the enameled wire. However, in actual use, the enameled wire often falls out of the hanging opening, which also results in a loosely wound coil. Therefore, there is an urgent need to design and produce a fully automatic coil winding machine that maintains a constant tension throughout the winding process. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the winding machine in the prior art that the coil is wound relatively loosely, thereby providing a fully automatic coil winding machine that always maintains a certain tension during the winding process and has good coil winding quality.

[0005] To this end, the present invention provides a fully automatic coil winding machine, comprising a winding ring, a wire storage ring, a first power mechanism suitable for driving the winding ring to move, and a second power mechanism suitable for driving the wire storage ring to move, the second power mechanism having a first working mode corresponding to a wire storage state, and a second working mode corresponding to a winding state, wherein, in the second working mode, the second power mechanism is suitable for outputting a reverse torque to the wire storage ring, and the reverse pulling force generated by the reverse torque on the wire storage ring is opposite to the forward pulling force generated by the winding ring on the wire storage ring, and the reverse pulling force is smaller than the forward pulling force, so that the wire maintains a certain tension.

[0006] The second power mechanism includes a second motor, a second transmission wheel and a second transmission belt connecting the second motor and the wire storage ring.

[0007] The second transmission belt is a synchronous belt, and the wire storage ring has a toothed portion distributed circumferentially along its outer edge and matched with the synchronous belt.

[0008] The second motor is a servo motor or a torque motor.

[0009] It also includes a wire hanging structure suitable for hanging wires, which includes a wire hanging piece arranged on the wire storage ring. After the movable end of the wire passes around the wire hanging piece, it is located in the wire storage groove on the same side of the wire hanging piece as the wire body.

[0010] When in the wire hanging position, the movable end and the wire body are arranged to cross each other, and the wire body at the intersection is located above the movable end.

[0011] The wire hanging piece is arranged on one side wall at the notch of the wire storage ring and extends toward the other side wall.

[0012] The top surface of the wire hanging member is flush with the bottom wall of the adjacent wire storage groove, or is arranged lower than the bottom wall.

[0013] It also includes a wire driving mechanism suitable for clamping and cutting the wire, the wire driving mechanism includes a wire clamping and cutting member, a first driving member, a second driving member, a third driving member and a fourth driving member, the wire clamping and cutting member is suitable for clamping and cutting the wire; the first driving member is suitable for driving the wire clamping and cutting member to move back and forth along the Z-axis direction; the second driving member is suitable for driving the wire clamping and cutting member to move back and forth along the X-axis direction; the third driving member is suitable for driving the wire clamping and cutting member to move back and forth along the Y-axis direction; the fourth driving member is suitable for driving the wire clamping and cutting member to rotate around the X-axis direction.

[0014] The wire clamping and cutting member comprises two scissor parts and wire clamping parts respectively arranged on the two scissor parts.

[0015] The technical solution of the present invention has the following advantages:

[0016] 1. The fully automatic coil winding machine provided by the present invention has a second power mechanism that can drive the wire storage ring to store wire during the wire storage process; and during the winding process, the second power mechanism is suitable for outputting a reverse torque to the wire storage ring. The reverse pulling force generated by the reverse torque on the wire storage ring is opposite to the forward pulling force generated by the winding ring on the wire storage ring, and the reverse pulling force is smaller than the forward pulling force, so that the wire always maintains a certain tension, thereby improving the quality of the product. In this way, only one second power mechanism needs to be set up, which can not only complete the wire storage action, but also keep the wire tension during winding, and has the advantages of simple structure and low production cost.

[0017] 2. In the fully automatic coil winding machine provided by the present invention, the second transmission belt is a synchronous belt, and the wire storage ring has a toothed portion distributed circumferentially along its outer edge and cooperating with the synchronous belt, which can avoid slipping between the second transmission belt and the wire storage ring and improve reliability.

[0018] 3. The fully automatic coil winding machine provided by the present invention has a wire hanging structure including a wire hanging piece provided on a wire storage ring. After the movable end of the wire passes around the wire hanging piece, it is located in a wire storage groove on the same side of the wire hanging piece as the wire body, thereby forming a U-shaped buckle. Compared with the existing technology, this wire hanging is more secure.

[0019] 4. The fully automatic coil winding machine provided by the present invention has the movable end and the wire body arranged crosswise when in the wire hanging position, and the wire body at the intersection is located above the movable end, thereby pressing the movable end and the wire storage groove more firmly, and as the number of wire coils wound on the wire storage ring increases, each part of the movable end can be pressed by the wire body, further making the wire hanging more secure.

[0020] 5. In the fully automatic coil winding machine provided by the present invention, the wire hanging piece is arranged on one side wall at the notch of the wire storage ring and extends toward the other side wall. The top surface of the wire hanging piece is flush with the bottom wall of the adjacent wire storage groove, or is arranged lower than the bottom wall. The above arrangement can avoid the situation where the winding amount is reduced due to the wire hanging piece being arranged in the wire storage groove, and reduces the friction with the wire body, thereby ensuring the winding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A perspective view of the fully automatic coil winding machine of the present invention;

[0023] Figure 2 It is an exploded schematic diagram of the wire storage ring, the wire winding ring and the first power mechanism;

[0024] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part C;

[0025] Figure 4 It is a three-dimensional diagram of the wire storage ring;

[0026] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of part D;

[0027] Figure 6 It is a schematic diagram of the active end of the wire and the main body of the wire at the hanging position;

[0028] Figure 7 is a three-dimensional diagram of a wire driving mechanism;

[0029] Figure 8 It is a partial schematic diagram of a winding machine in the prior art.

[0030] Explanation of reference numerals: 01, winding ring; 02, wire storage ring; 03, enameled wire; 04, workpiece; 05, notch; 06, wire hanging wheel;

[0031] 1. Wire winding ring; 2. Wire storage ring; 3. Wire; 4. Second motor; 5. Second transmission wheel; 6. Second transmission belt; 7. Wire hanging member; 8. Movable end; 9. Wire body; 10. Wire storage groove; 11. Intersection; 12. Notch; 13. Wire clamping and cutting member; 14. Scissors part; 15. Wire clamping part; 16. First drive member; 17. Second drive member; 18. Third drive member; 19. Fourth drive member; 20. Wire pressing wheel; 21. Wire pressing drive member; 22. Workpiece; 23. Winding guide plate; 24. Winding guide wheel; 25. First motor; 26. Bridge gear. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Example

[0037] This embodiment provides a fully automatic coil winding machine, such as Figure 1 and 2 As shown, it includes a winding ring 1, a first power mechanism, a wire hanging structure and a second power mechanism.

[0038] Winding ring 1, such as Figure 2 As shown, there is a winding guide assembly suitable for winding the wire 3 onto the workpiece 22 , and the winding guide assembly includes a winding guide plate 23 fixed on the winding ring 1 and a winding guide wheel 24 provided on the winding guide plate 23 .

[0039] The first power mechanism includes a first motor 25 and a bridge gear 26 suitable for driving the winding ring 1 to rotate.

[0040] The wire hanging structure includes a wire storage ring 2, a wire flattening mechanism and a wire driving mechanism.

[0041] Storage ring 2, such as Figure 3-5 As shown, there is a wire hanging member 7, which is arranged on one side wall of the notch 12 of the wire storage ring 2 and extends toward the other side wall. The top surface of the wire hanging member 7 is flush with the bottom wall of the adjacent wire storage groove 10, or is arranged lower than the bottom wall. After the movable end 8 of the wire 3 passes around the wire hanging member 7, it is placed in the wire storage groove 10 on the same side of the wire hanging member 7 as the wire body 9, wherein, as shown in FIG. Figure 6 As shown, in the wire hanging position, the movable end 8 and the wire body 9 are arranged to intersect, and the wire body 9 at the intersection 11 is located above the movable end 8. In this embodiment, the wire hanging member 7 is a wire hanging shaft.

[0042] The wire flattening mechanism is suitable for flattening the movable end 8 of the wire 3 on the bottom wall of the wire storage groove 10 after the wire 3 is hung on the wire hanging member 7. Figure 1 As shown, the wire flattening mechanism includes a wire crimping wheel 20 adapted to extend into the wire storage trough 10, and a wire crimping drive 21 for driving the wire crimping wheel 20 to reciprocate. During wire crimping, the wire crimping wheel 20 extends into the wire storage trough 10, the wire storage ring 2 rotates, and the wire crimping wheel 20 flattens the movable end 8 of the wire 3 and part of the wire body 9 against the bottom wall of the wire storage trough 10, thereby preventing the movable end 8 from tilting upward and causing a reduction in the amount of stored wire wrapped around the wire 2. The wire flattening mechanism has the advantage of a simple structure.

[0043] Wire drive mechanism, such as Figure 7 As shown, it includes: a wire clamping and cutting member 13 having a scissor portion 14 and a wire clamping portion 15, respectively adapted to cut and clamp the wire 3; a first driving member 16 adapted to drive the wire clamping and cutting member 13 to reciprocate along the Z-axis; a second driving member 17 adapted to drive the wire clamping and cutting member 13 to reciprocate along the X-axis; a third driving member 18 adapted to drive the wire clamping and cutting member 13 to reciprocate along the Y-axis; and a fourth driving member 19 adapted to drive the wire clamping and cutting member 13 to rotate about the X-axis. In this embodiment, each driving member is a cylinder.

[0044] The second power mechanism has a first working mode corresponding to the wire storage state and a second working mode corresponding to the wire winding state. In the second working mode, the second power mechanism is suitable for outputting a reverse torque to the wire storage ring 2. The reverse pulling force generated by the reverse torque on the wire storage ring 2 is opposite to the forward pulling force generated by the winding ring 1 on the wire storage ring 2, and the reverse pulling force is smaller than the forward pulling force, so that the wire 3 on the wire storage ring 2 maintains a certain tension. The second power mechanism includes a second motor 4, and a second transmission wheel 5 and a second transmission belt 6 connecting the second motor 4 and the wire storage ring 2. The second transmission belt 6 is a synchronous belt, and the wire storage ring 2 has a toothed portion (not shown in the figure) distributed circumferentially along its outer edge and cooperating with the synchronous belt. In this embodiment, the second motor 4 is a servo motor or a torque motor. In the first working mode, the second motor 4 drives the wire storage ring 2 to rotate clockwise to store the wire; in the second working mode, the winding ring 1 rotates counterclockwise, thereby driving the wire 3 to wind on the workpiece 22 through the winding guide wheel 24. At this time, the second motor 4 outputs a reverse torque to the wire storage ring 2, and the reverse tension generated by the reverse torque is less than the forward tension of the winding guide wheel 24 on the wire storage ring 2, thereby maintaining a certain tension on the wire 3.

[0045] As a convertible embodiment, the second power mechanism includes a second motor 4 and a bridge gear connecting the second motor 4 and the wire storage ring 2 .

[0046] The fully automatic coil winding machine provided by the present invention has a second power mechanism that can drive the wire storage ring 2 to store wire during the wire storage process; and during the winding process, the second power mechanism is suitable for outputting a reverse torque to the wire storage ring 2. The reverse pulling force generated by the reverse torque on the wire storage ring 2 is opposite to the forward pulling force generated by the winding ring 1 on the wire storage ring 2, and the reverse pulling force is smaller than the forward pulling force, so that the wire 3 always maintains a certain tension, thereby improving the quality of the product. In this way, only one second power mechanism needs to be set up, which can not only complete the wire storage action, but also keep the wire tension during winding, and has the advantages of simple structure and low production cost.

[0047] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A fully automatic coil winding machine, characterized in that: The invention comprises a winding ring (1), a wire storage ring (2), a first power mechanism suitable for driving the winding ring (1) to move, and a second power mechanism suitable for driving the wire storage ring (2) to move, wherein the second power mechanism has a first working mode corresponding to a wire storage state, and a second working mode corresponding to a wire winding state, wherein in the second working mode, the second power mechanism is suitable for outputting a reverse torque to the wire storage ring (2), and the reverse pulling force generated by the reverse torque on the wire storage ring (2) is opposite to the forward pulling force generated by the winding ring (1) on the wire storage ring (2), and the reverse pulling force is smaller than the forward pulling force, so that the wire (3) on the wire storage ring (2) maintains a certain tension; It also includes a wire hanging structure suitable for hanging wires, the wire hanging structure including a wire hanging member (7) provided on the wire storage ring (2), and after the movable end (8) of the wire (3) passes around the wire hanging member (7), it is located in a wire storage groove (10) on the same side of the wire hanging member (7) as the wire body (9); When in the wire hanging position, the movable end (8) and the wire body (9) are arranged to intersect, and the wire body (9) at the intersection (11) is located above the movable end (8); The wire hanging member (7) is arranged on one side wall at the notch (12) of the wire storage ring (2) and extends toward the other side wall; The top surface of the wire hanging member (7) is flush with the bottom wall of the adjacent wire storage groove (10), or is arranged below the bottom wall; The wire flattening mechanism flattens the movable end (8) of the wire (3) onto the bottom wall of the wire storage groove (10) after the wire (3) is hung on the wire hanging member (7). The wire flattening mechanism comprises a wire pressing wheel (20) adapted to extend into the wire storage groove (10), and a wire pressing driving member (21) for driving the wire pressing wheel (20) to move back and forth. When pressing the wire, the wire pressing wheel (20) extends into the wire storage groove (10), the wire storage ring (2) rotates, and the wire pressing wheel (20) flattens the movable end (8) of the wire (3) and a part of the wire body (9) onto the bottom wall of the wire storage groove (10).

2. The fully automatic coil winding machine according to claim 1, characterized in that: The second power mechanism comprises a second motor (4), a second transmission wheel (5) and a second transmission belt (6) connecting the second motor (4) and the wire storage ring (2).

3. The fully automatic coil winding machine according to claim 2, characterized in that: The second transmission belt (6) is a synchronous belt, and the wire storage ring (2) has a toothed portion distributed circumferentially along its outer edge and cooperating with the synchronous belt.

4. The fully automatic coil winding machine according to claim 2, characterized in that: The second motor (4) is a servo motor or a torque motor.

5. The fully automatic coil winding machine according to claim 4, characterized in that: It also includes a wire driving mechanism suitable for clamping and cutting the wire (3), and the wire driving mechanism includes: A wire clamping and cutting member (13) adapted to clamp and cut the wire (3); A first driving member (16) adapted to drive the thread clamping and cutting member (13) to reciprocate along the Z-axis direction; A second driving member (17) is adapted to drive the thread clamping and cutting member (13) to move back and forth along the X-axis direction; A third driving member (18) is adapted to drive the thread clamping and cutting member (13) to reciprocate along the Y-axis direction; The fourth driving member (19) is suitable for driving the thread clamping and cutting member (13) to rotate around the X-axis direction.

6. The fully automatic coil winding machine according to claim 5, characterized in that: The wire clamping and cutting member (13) comprises two scissor parts (14) and wire clamping parts (15) respectively provided on the two scissor parts (14).

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