Wire cutting mechanism for winding machine

Abstract

The utility model discloses a wire cutting mechanism for a winding machine, which comprises a mounting seat, a wire cutting sleeve, a wire cutting tool post, a linear driving unit, a wire pressing post and an elastic piece, the wire cutting sleeve is of a hollow pipe structure, and a wire cutting opening is formed in the side wall of the wire cutting sleeve; the wire cutting sleeve is fixed on the mounting seat, the wire cutting tool post and the wire pressing post are arranged in the wire cutting sleeve in a sliding manner, a wire clamping area is formed between the wire cutting tool post and the wire pressing post, and the wire cutting tool post is driven by the linear driving unit to move back and forth so as to control the closing and opening of the wire clamping area; the elastic piece provides elastic force for the wire pressing column. When the wire clamping area is opened, the wire clamping area is opposite to the wire cutting opening so that wires can be placed in. In the wire cutting stage, the linear driving unit drives the wire cutting tool post to abut against the wire pressing post so that the wire can be clamped in the wire clamping area, and the edge of the wire cutting tool post and the edge of the wire cutting opening form a shearing structure so that the wire can be cut off. By optimizing the structure of the wire cutting mechanism, the wire cutting mechanism can be used on the winding machine to realize automatic wire cutting, the wire cutting efficiency is improved, and the wire cutting mechanism has a good use effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of winding machines, and particularly relates to a wire cutting mechanism for a winding machine. Background Art

[0002] During the manufacturing process of annular coils, a winding machine is a key technical equipment for winding wire materials (such as copper wires) onto a core ring according to specific rules. After the annular coil is wound, the redundant waste wire at the end needs to be cut off. Most of the existing winding machines are semi-automatic machines, and manual operation is required during the wire cutting stage. With the continuous development of electronic devices towards miniaturization and high density, strict requirements are put forward for the winding accuracy, size consistency, and production efficiency of coils. The traditional manual wire cutting method has obvious deficiencies. The manual wire cutting method increases the process time, the manual operation speed is slow, and the manufacturing cycle of a single product is significantly extended in mass production, becoming a bottleneck restricting the improvement of the overall production capacity. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a wire cutting mechanism for a winding machine with stable performance, which can realize automatic wire cutting, thereby being beneficial to improving the wire cutting efficiency.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a wire cutting mechanism for a winding machine, including a mounting base, a wire cutting sleeve, a wire cutting knife post, a linear driving unit, a wire pressing post, and an elastic member. The wire cutting sleeve is a hollow tube structure, and a wire cutting opening communicating with the inner cavity is formed on its side wall. The wire cutting sleeve is fixed on the mounting base. The wire cutting knife post and the wire pressing post are slidably arranged in the wire cutting sleeve. A wire clamping area for the wire material to pass through is formed between the wire cutting knife post and the wire pressing post. The wire cutting knife post is driven by the linear driving unit to move back and forth to control the closing and opening of the wire clamping area. The elastic member provides an elastic force for the wire pressing post towards the direction of the wire cutting knife post. When the wire clamping area is open, it is opposite to the wire cutting opening for the wire material to be placed. During the wire cutting stage, the linear driving unit drives the wire cutting knife post to move towards the wire pressing post to clamp the wire material, and a shearing structure is formed by the edge of the wire cutting knife post and the edge of the wire cutting opening to cut off the wire material.

[0006] Preferably, a cutting surface perpendicular to the axial direction of the wire cutting sleeve is provided at one end of the wire cutting opening close to the wire pressing post.

[0007] Preferably, the wire cutting opening is a wedge-shaped groove opening with a radial depth greater than the radius of the wire cutting sleeve, and the radial depth of the wedge-shaped groove opening gradually deepens in the direction from far to near the wire pressing post.

[0008] Preferably, the linear driving unit includes a driving cylinder, and the driving cylinder is fixed on the mounting base.

[0009] Preferably, a connecting jacket is provided at one end of the tangent cutter post away from the wire pressing post. A floating joint is installed at the end of the cylinder rod of the driving air cylinder, and a limit bayonet for movably clamping with the floating joint is provided on the connecting jacket.

[0010] Preferably, a stop block is fixed inside the tangent sleeve, and the elastic member is installed in a limited manner between the stop block and the wire pressing post.

[0011] Preferably, a limiting sliding hole extending along the axial direction is provided on the wire pressing post, and the stop block penetrates into the limiting sliding hole in the radial direction.

[0012] Preferably, the elastic member is a compression spring.

[0013] Preferably, the mounting seat is installed on the base in a laterally slidable manner, and a lateral air cylinder is installed between the base and the mounting seat. The lateral air cylinder is used to drive the mounting seat to move laterally; the base is driven by a lifting air cylinder to move up and down.

[0014] Preferably, an avoidance notch is provided at a partial edge of one end of the tangent cutter post close to the wire pressing post.

[0015] The positive effects of the present utility model are as follows: The structure of the tangent mechanism in the present utility model is reasonably set. The tangent sleeve adopts a hollow tube structure, and a tangent opening is provided on its side wall. A wire pressing post and a tangent cutter post are arranged inside the tangent sleeve. When tangentting, the wire passes through the tangent opening, the cooperation between the tangent cutter post and the wire pressing post is controlled to clamp the wire, and the wire is cut off by the shearing force generated between the edge of the tangent cutter post and the edge of the tangent opening, completing the automatic tangent operation, which is beneficial to improving the efficiency of the tangent process; moreover, the way of installing the tangent cutter post and the wire pressing post in the tangent sleeve, the inner tube wall of the tangent sleeve provides guidance and constraint for the movement of the tangent cutter post and the wire pressing post, effectively restricting their movement trajectories and preventing deviation or shaking. This built-in design enhances the stability of the tangent cutter post and the wire pressing post during movement, ensuring the reliability of the shearing line and the durability of the mechanism. In addition, the coordinated design of the built-in layout of the tangent cutter post and the non-terminal opening of the tangent opening can provide shielding protection for the tangent edge (i.e., the edge of the tangent cutter post and the edge of the tangent opening), thereby reducing the probability of damage to the tangent edge caused by accidental collision to a certain extent, and having good practicability and operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the description of the specific embodiments or the prior art. Similar elements or parts in the drawings are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to actual scale.

[0017] Figure 1This is a schematic structural diagram of the tangent mechanism in the present utility model;

[0018] Figure 2 is Figure 1 a schematic structural diagram of another perspective of the shown tangent mechanism;

[0019] Figure 3 is Figure 1 a schematic structural diagram of the shown tangent mechanism with some components omitted;

[0020] Figure 4 is Figure 3 a top view of the shown tangent mechanism;

[0021] Figure 5 is Figure 4 a cross-sectional view taken along the A-A line in

[0022] Figure 6 is Figure 5 a partial enlarged view at B in

[0023] Figure 7 This is a schematic structural diagram of the tangent sleeve of the present utility model;

[0024] Figure 8 is Figure 3 an exploded view of the shown tangent mechanism;

[0025] Figure 9 is a schematic diagram when the wire is initially placed into the tangent opening;

[0026] Figure 10 is a schematic diagram when the wire is clamped by the tangent knife post and the wire pressing post.

[0027] The reference numerals shown in the figure are: 1, mounting base; 2, tangent sleeve; 21, tangent opening; 22, cutting surface; 23, stop block; 3, tangent knife post; 31, connecting clamp sleeve; 32, limiting bayonet; 33, avoiding notch; 4, linear drive unit; 41, drive cylinder; 42, floating joint; 5, wire pressing post; 51, limiting sliding hole; 6, elastic member; 7, wire clamping area; 8, base; 81, transverse cylinder; 9, lifting cylinder; 10, wire. Detailed implementation mode

[0028] The following will describe in detail the embodiments of the technical solutions of the present utility model with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0029] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0030] The tangent mechanism in the embodiment of the utility model is suitable for a winding machine for manufacturing annular coils; its structure is as follows Figures 1 to 10 As shown, it includes a mounting seat 1, a tangent sleeve 2, a tangent knife column 3, a linear drive unit 4, a wire pressing column 5 and an elastic member 6. The tangent sleeve 2 is a hollow tube structure, and a tangent opening 21 connected to the inner cavity is opened on its side wall; the tangent sleeve 2 is fixed on the mounting seat 1, and the tangent knife column 3 and the wire pressing column 5 are slidably arranged in the tangent sleeve 2, and a wire clamping area 7 for the wire 10 to pass through is formed between the tangent knife column 3 and the wire pressing column 5. The tangent knife column 3 is driven by the linear drive unit 4 to make a reciprocating movement to control the closing and opening of the wire clamping area 7. The movable direction of the tangent knife column 3 is the direction of approaching and moving away from the wire pressing column 5. When there is a distance between the tangent knife column 3 and the wire pressing column 5, the wire clamping area 7 is in an open state, and when the tangent knife column 3 moves to the wire pressing column 5 to contact, the wire clamping area 7 is in a closed state; the elastic member 6 is preferably a compression spring, and the elastic member 6 is used to clamp the wire The column 5 provides elastic force so that the wire pressing column 5 maintains a tendency to move toward the direction of the tangent knife column 3. When the wire clamping area 7 is open, it is opposite to the tangent opening 21 for the wire 10 to be placed. In the tangent stage, the linear drive unit 4 drives the tangent knife column 3 to move toward the wire pressing column 5 to clamp the wire 10, and forms a shearing structure through the edge of the tangent knife column 3 and the edge of the tangent opening 21 to cut the wire 10. The tangent mechanism adopts the structure in this embodiment to realize automatic cutting of the wire, thereby effectively improving the tangent efficiency. Moreover, the tangent knife column 3 and the wire pressing column 5 are installed in the tangent sleeve 2. The inner tube wall of the tangent sleeve 2 provides guidance and constraint for the movement of the tangent knife column 3 and the wire pressing column 5, effectively limiting their movement trajectory and preventing deflection or shaking. This built-in design enhances the stability of the tangent knife column 3 and the wire pressing column 5 in motion, ensuring the reliability of the shearing line and the durability of the mechanism. In addition, the built-in layout of the tangent knife column 3 and the coordinated design of the non-end opening of the tangent opening 21 can provide shielding and protection for the tangent blade (i.e., the edge of the tangent knife column 3 and the edge of the tangent opening 21), thereby reducing the probability of damage to the tangent blade due to accidental collision to a certain extent.

[0031] In this embodiment, the working process of the tangent mechanism during the tangent stage is specifically as follows: Initially, the wire clamping area 7 is in an open state (i.e., there is a gap between the tangent knife post 3 and the wire pressing post 5). At this time, the wire clamping area 7 is opposite to and communicates with the tangent opening 21, so that the wire 10 is inserted into the wire clamping area 7 from the tangent opening 21 (the wire 10 passes through the wire clamping area 7). Then, the linear drive unit 4 drives the tangent knife post 3 to move towards the wire pressing post 5 to gradually narrow the wire clamping area 7 until the opposite end faces of the tangent knife post 3 and the wire pressing post 5 clamp the wire 10. As the linear drive unit 4 continues to drive the tangent knife post 3 and the wire pressing post 5 to move together (during this process, the elastic member 6 is continuously compressed), the wire 10 is cut by using the shearing structure formed between the edge of the tangent knife post 3 and the edge of the tangent opening 21 and the powerful shearing force generated by their relative movement, thus completing the automatic tangent. After the tangent action is completed, the linear drive unit 4 drives the tangent knife post 3 to move away from the wire pressing post 5 (i.e., in the direction of the initial position). The elastic force released by the compressed elastic member 6 pushes the wire pressing post 5 to move in the direction of the retreat of the tangent knife post 3 until it is reset. When a gap is formed again between the wire pressing post 5 and the tangent knife post 3, the wire clamping area 7 reopens, releasing the end (waste wire) of the cut wire 10, preparing for the next tangent operation.

[0032] Combined with Figure 6 and Figure 8 As shown, a relief notch 33 is provided at a partial edge of the end of the tangent knife post 3 close to the wire pressing post 5. The existence of the relief notch 33 can prevent a tangent edge from being formed at the corresponding edge part of the tangent knife post 3, so that the wire 10 will not be cut from here during the tangent process, thereby controlling the cutting part of the wire 10.

[0033] Refer to Figure 7 As shown, in order to prevent the wire 10 from slipping out of the tangent opening 21 during the tangent process, it is preferably set that one end of the tangent opening 21 close to the wire pressing post 5 is provided with a cut surface 22 perpendicular to the axis of the tangent sleeve 2. In this way, during the tangent stage, the cut surface 22 can also effectively block the wire, which is beneficial to wire cutting.

[0034] Refer to Figure 9 and Figure 10 As shown, the tangent opening 21 is further set as a wedge-shaped groove opening with a radial depth greater than the radius of the tangent sleeve 2. The radial depth of the wedge-shaped groove opening gradually deepens in the direction from far to near the wire pressing post 5. With this structure, in practical applications, after the winding is completed, the wire 10 is placed in the tangent opening 21 and straightened on the inner inclined surface of the tangent opening 21. During the process of the tangent knife post 3 moving towards the wire pressing post 5, the tangent knife post 3 pushes the wire 10 to gradually slide along the inner inclined surface of the tangent opening 21 towards the deep end of the tangent opening 21. During this process, as the depth of the tangent opening 21 gradually increases, the wire 10 is moderately relaxed, and then the wire 10 is cut by the cooperation of the edge of the tangent knife post 3 and the edge of the tangent opening 21 at the set position, so as to ensure the accuracy of the tangent position and improve the consistency of the coil production quality.

[0035] Combined with Figures 3 to 5 , in this embodiment, the linear drive unit 4 includes a drive cylinder 41 fixed on the mounting base 1. The movement of the tangent cutter post 3 is controlled by the telescopic movement of the cylinder rod of the drive cylinder 41. Its structure is simple and the action is stable.

[0036] Refer to Figures 3 to 5 and Figure 8 , a connecting jacket 31 is fixed at one end of the tangent cutter post 3 away from the wire pressing post 5. A floating joint 42 is installed at the end of the cylinder rod of the drive cylinder 41. A limit bayonet 32 for forming a movable clamping connection with the floating joint 42 is provided on the connecting jacket 31; the movable clamping cooperation between the floating joint 42 and the limit bayonet 32 can ensure the connection between the two, and at the same time allow a small amount of movement amplitude between the two to compensate for the small deviation caused by the movement of the cylinder rod or the vibration of the equipment, avoid the stress concentration caused by rigid connection, play a certain protective role for the mechanism, and is also convenient for assembly.

[0037] Refer to Figure 5 and Figure 6 , in order to facilitate the installation of the elastic member 6, a stop block 23 is fixed in the tangent sleeve 2. The elastic member 6 is limitedly installed between the stop block 23 and the wire pressing post 5. The two ends of the elastic member 6 act on the stop block 23 and the wire pressing post 5 respectively, so that the elastic member 6 provides the elastic force in the required direction for the wire pressing post 5. Exemplarily, a fixing hole penetrating radially is provided on the side wall of the tangent sleeve 2. The two ends of the stop block 23 are fixed in the fixing hole; and a spring installation cavity extending axially is further provided in the wire pressing post 5 to effectively install and limit the elastic member 6.

[0038] Refer to Figure 6 and Figure 8 , in order to limit the movement range of the wire pressing post 5, a limit sliding hole 51 extending along its axis is provided on the wire pressing post 5. The stop block 23 penetrates into the limit sliding hole 51 along the radial direction. When the wire pressing post 5 moves, the maximum range of its axial movement is limited by the relative displacement of the stop block 23 in the limit sliding hole 51, and the length of the limit sliding hole 51 determines the movable range of the wire pressing post 5.

[0039] In a further embodiment, please refer to Figure 1 and Figure 2As shown, the mounting base 1 is installed on the base 8 in a laterally slidable manner, and a lateral cylinder 81 is installed between the base 8 and the mounting base 1. The mounting base 1 is driven by the lateral cylinder 81 to move laterally on the base 8; the base 8 is driven by a lifting cylinder 9 to move up and down. During installation, the lifting cylinder 9 is fixed on the frame of the winding machine. In practical applications, through the cooperation of the lifting cylinder 9 and the lateral cylinder 81, the mounting base 1 can move laterally and vertically to meet the moving control requirements in a two-dimensional space; for example, in practical applications, after the tangent mechanism is lowered by the lifting cylinder 9, the cut waste wire can be released so that it can fall into the recycling bin below.

[0040] For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the embodiments here. And these obvious changes or variations derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A tangent mechanism for a winding machine, characterized in that: It includes a mounting base (1), a wire cutting sleeve (2), a wire cutting knife post (3), a linear drive unit (4), a wire pressing post (5) and an elastic member (6). The wire cutting sleeve (2) is a hollow tube structure, and a wire cutting opening (21) communicating with the inner cavity is formed on its side wall. The wire cutting sleeve (2) is fixed on the mounting base (1). The wire cutting knife post (3) and the wire pressing post (5) are slidably arranged in the wire cutting sleeve (2). A wire clamping area (7) for the wire to pass through is formed between the wire cutting knife post (3) and the wire pressing post (5). The wire cutting knife post (3) is driven by the linear drive unit (4) to move back and forth to control the closing and opening of the wire clamping area (7). The elastic member (6) provides an elastic force for the wire pressing post (5) towards the direction of the wire cutting knife post (3). When the wire clamping area (7) is open, it is opposite to the wire cutting opening (21) for the wire to be placed. In the wire cutting stage, the linear drive unit (4) drives the wire cutting knife post (3) to move towards the wire pressing post (5) to clamp the wire, and a shearing structure is formed by the edge of the wire cutting knife post (3) and the edge of the wire cutting opening (21) to cut the wire.

2. The wire cutting mechanism for a winding machine according to claim 1, wherein: One end of the wire cutting opening (21) close to the wire pressing post (5) is provided with a cutting surface (22) perpendicular to the axial direction of the wire cutting sleeve (2).

3. The wire cutting mechanism for a winding machine according to claim 1 or 2, characterized in that: The wire cutting opening (21) is a wedge-shaped groove opening with a radial depth greater than the radius of the wire cutting sleeve (2), and the radial depth of the wedge-shaped groove opening gradually deepens in the direction from far to near the wire pressing post (5).

4. The wire cutting mechanism for a winding machine according to claim 1, characterized in that: The linear drive unit (4) includes a drive cylinder (41), and the drive cylinder (41) is fixed on the mounting base (1).

5. The tangent mechanism for a winding machine according to claim 4, wherein: A connecting clamp sleeve (31) is provided at one end of the wire cutting knife post (3) away from the wire pressing post (5). A floating joint (42) is installed at the end of the cylinder rod of the drive cylinder (41), and a limit bayonet (32) for forming an active clamping connection with the floating joint (42) is provided on the connecting clamp sleeve (31).

6. The tangent mechanism for a winding machine according to claim 1, characterized in that: A stop block (23) is fixed in the wire cutting sleeve (2), and the elastic member (6) is installed in a limited way between the stop block (23) and the wire pressing post (5).

7. The wire cutting mechanism for a winding machine according to claim 6, characterized in that: A limit sliding hole (51) extending along its axial direction is provided on the wire pressing post (5), and the stop block (23) penetrates into the limit sliding hole (51) along the radial direction.

8. The wire cutting mechanism for a winding machine according to claim 1, wherein: The elastic member (6) is a compression spring.

9. The tangent mechanism for a winding machine according to claim 1, wherein: The mounting base (1) is installed on the base (8) in a horizontally slidable manner, and a horizontal cylinder (81) is installed between the base (8) and the mounting base (1). The horizontal cylinder (81) is used to drive the mounting base (1) to move horizontally. The base (8) is driven by a lifting cylinder (9) to move up and down.

10. The wire cutting mechanism for a winding machine according to claim 9, wherein: An avoidance notch (33) is provided at a partial edge of one end of the wire cutting knife post (3) close to the wire pressing post (5).

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