A copper wire stranding device

Abstract

The utility model relates to copper wire stranding technical field, and disclose a copper wire stranding device, include: frame, the upper rotation of frame is provided with the stranding disc for stranding, and one side fixed setting of frame is used for driving the motor of stranding disc, the silk leading structure, the adjusting structure is personally experienced sth, the adjusting structure includes electric push rod, big arm and contact roll, electric push rod and big arm all are hinged with vertical plate, the output shaft of electric push rod is connected with big arm axle, the contact roll is set in the top of big arm, and the tension of single copper wire is controlled through a group of adjusting structure, and then guarantee that the tension of each copper wire being stranding is consistent, can avoid copper wire to be excessively stretched and break or stranding slack because of the insufficient tension, can promote the quality of product, and the output shaft displacement of electric push rod is controlled by controller and pushes the top big arm rotation around its hinged point, and then realizes the tension control of single copper wire, can realize dynamic adjustment in the stranding process.

Description

Technical Field

[0001] This utility model relates to the field of copper wire stranding technology, and in particular to a copper wire stranding device. Background Technology

[0002] Copper wire is usually made by twisting multiple copper wires together. During production, a twisting device is used to twist multiple copper wires into one.

[0003] A search revealed a prior art copper wire stranding device (publication number: CN222980216U), comprising a base, characterized in that: a stranding rotating frame is provided at the upper end of the base, four copper wire rollers are evenly arranged on the inner side of the stranding rotating frame, a positioning arc plate is provided on one side of the copper wire rollers, a fixing frame is fixedly connected to one side of the stranding rotating frame, a second fixing plate is provided on one side of the fixing frame, a bearing is fixedly connected to the inner side of the second fixing plate, a stranding plate is fixedly connected to the inner side of the bearing, a plurality of extension wire exiting plates are evenly arranged on the inner side of the stranding plate, and a collecting rotating roller is provided on one side of the extension wire exiting plate.

[0004] In the prior art, copper wire is guided by rollers and fed into a stranding disc for stranding, while each copper wire is released by a separate pay-off disc. Before stranding, the tension of each copper wire is different. If the tension of each copper wire is not controlled, the copper wire may break during stranding due to excessive tension or be stranded loosely due to insufficient tension. There is room for optimization in the adjustment and control of the tension of each copper wire in the prior art.

[0005] Therefore, we propose a copper wire stranding device. Utility Model Content

[0006] The present invention mainly addresses the technical problem of inconsistent copper wire tension affecting stranding quality by providing a copper wire stranding device.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a copper wire stranding device, comprising: A frame, on which a stranding disc for stranding wire is rotatably mounted, and on one side of the frame a motor for driving the stranding disc is fixedly mounted; The wire guide structure is located on one side of the stranding disc to guide the copper wire; An adjustment structure, located on one side of the frame, is used to adjust the tension of a single strand of copper wire. The adjustment structure includes an electric actuator, a boom, and a contact roller. The top of the frame is provided with an integrally formed upright plate. The electric actuator and the boom are both hinged to the upright plate. The output shaft of the electric actuator is axially connected to the boom. The contact roller rotates to be located on the top of the boom. A set of adjustment structures is provided around each of the four sides of the upright plate.

[0008] In a preferred embodiment of this utility model, the upright plate is welded with a base plate, and the electric actuator and the main arm are respectively hinged to two sets of base plates, with the main arm and the electric actuator arranged in a herringbone shape.

[0009] In a preferred embodiment of this utility model, the top of the upper arm is provided with a mounting groove for mounting a contact roller, and the end of the contact roller is axially connected to the inner sidewall of the mounting groove.

[0010] In a preferred embodiment of this utility model, two contact rollers are provided in the mounting groove, and the two contact rollers are distributed in an X-shape.

[0011] In a preferred embodiment of this utility model, the wire guide structure includes a mounting base, a first guide roller, and a second guide roller. A first guide roller and a second guide roller are arranged around each of the four sides of the mounting base, and the mounting base is fixedly mounted on the top of the frame by a bracket.

[0012] In a preferred embodiment of the present invention, the top of the mounting base is provided with a slot, which is an L-shaped slot that extends from the top of the mounting base to one side of the mounting base. The first guide roller and the second guide roller are both installed in the slot.

[0013] In a preferred embodiment of this utility model, the adjustment structure further includes: a displacement sensor and a controller, wherein the displacement sensor is located on the path of the boom rotation, and both the displacement sensor and the electric push rod are electrically connected to the controller; The controller is configured to receive the boom position signal detected by the displacement sensor and control the extension and retraction of the electric actuator according to the signal, so as to dynamically adjust the pressure on the copper wire and thus maintain the constant tension of the copper wire.

[0014] This utility model provides a copper wire stranding device. It has the following beneficial effects: 1. This copper wire stranding device controls the tension of individual copper wires through a set of adjustment structures, thereby ensuring that the tension of each stranded copper wire remains consistent. This avoids the copper wires from being overstretched and breaking or from insufficient tension causing loose stranding, thus improving product quality. Specifically, a displacement sensor detects and provides feedback on the swing angle of the boom. The copper wires pass around the contact rollers, and the pressure exerted by the copper wires on the contact rollers is transmitted to the controller via a signal received by the displacement sensor. The controller then controls the output shaft of the electric push rod to move and push the boom around its hinge point, thereby achieving tension control of individual copper wires and enabling dynamic adjustment during the stranding process.

[0015] 2. This copper wire stranding device, by setting two cross-distributed mounting grooves on the upper arm, ensures that the copper wire is always confined to the cross position under the guidance of the two mounting grooves, thereby avoiding the probability of the copper wire separating from the contact roller and ensuring the guiding effect of the contact roller on the copper wire.

[0016] 3. In this copper wire stranding device, the copper wire passes over the contact roller and enters from the top of the slot and exits from the side. Then, the copper wire will be wound around the first guide roller and the second guide roller in the same slot. By rotating the first guide roller and the second guide roller, the copper wire is guided and limited, which can reduce the probability of the copper wire jumping in the hinge hole of the stranding disc and ensure the stability of the wire feeding. Attached Figure Description

[0017] Figure 1 This is one of the overall perspective views of this utility model; Figure 2 This is the second overall perspective view of the present utility model; Figure 3 This is a perspective view of the adjustment structure of this utility model; Figure 4 This is a schematic diagram of the contact roller mounting on the boom of this utility model; Figure 5 This is a three-dimensional view of the guide wire structure of this utility model.

[0018] Legend: 10. Frame; 11. Winding disc; 20. Electric actuator; 21. Boom; 22. Contact roller; 23. Mounting groove; 30. Mounting base; 31. Groove opening; 32. First guide roller; 33. Second guide roller. Detailed Implementation

[0019] A copper wire stranding device, such as Figure 1 As shown, it includes: A frame 10 is provided with a stranding disc 11 for stranding wire rotatably mounted on the upper part of the frame 10, and a motor for driving the stranding disc 11 is fixedly mounted on one side of the frame 10. like Figure 2 and Figure 3 As shown, an adjustment structure, located on one side of the frame 10, is used to adjust the tension of a single strand of copper wire. The adjustment structure includes an electric actuator 20, a large arm 21, and a contact roller 22. The top of the frame 10 has an integrally formed upright plate. The electric actuator 20 and the large arm 21 are both hinged to the upright plate. The output shaft of the electric actuator 20 is axially connected to the large arm 21. The contact roller 22 rotates to the top of the large arm 21. An adjustment structure is set around each of the four sides of the upright plate. The upright plate is welded with base plates. The electric actuator 20 and the large arm 21 are respectively hinged to two sets of base plates. The upper arm 21 and the electric actuator 20 are arranged in a herringbone pattern. The adjustment structure also includes a displacement sensor and a controller. The displacement sensor is located on the rotation path of the upper arm 21. The displacement sensor is a rotary potentiometer. The rotating shaft of the potentiometer is coaxially connected to the rotating shaft of the swing arm. Both the displacement sensor and the electric actuator 20 are electrically connected to the controller. The controller is configured to receive the position signal of the upper arm 21 detected by the displacement sensor and control the extension and retraction of the electric actuator 20 according to the signal to dynamically adjust the pressure on the copper wire, thereby maintaining the constant tension of the copper wire. In this design, the motor is fixedly installed on the frame 10 via a bracket. The output shaft of the motor is connected to the stranding disc 11 via a coupling. A wire feeding disc should be provided on one side of the frame 10. The tension of a single copper wire is controlled by a set of adjustment structures, thereby ensuring that the tension of each stranded copper wire remains consistent. This avoids the copper wire from being overstretched and breaking or from insufficient tension causing loose stranding, thus improving product quality. Specifically, the swing angle of the boom 21 is detected and fed back by a displacement sensor. The copper wire passes around the contact roller 22, and the pressure exerted by the copper wire on the contact roller 22 is transmitted to the controller via a signal received by the displacement sensor. The controller controls the output shaft of the electric push rod 20 to move and push the boom 21 to rotate around its hinge point, thereby achieving tension control of a single copper wire and enabling dynamic adjustment during the stranding process.

[0020] like Figure 4 As shown, as a supplement to the above solution and another implementation method, the top of the upper arm 21 is provided with a mounting groove 23 for mounting the contact roller 22. The end of the contact roller 22 is axially connected to the inner side wall of the mounting groove 23. Two contact rollers 22 are arranged in the mounting groove 23 in an X-shape. By setting two cross-distributed mounting grooves 23 on the upper arm 21, the copper wire will always be limited to the cross position under the guidance of the two mounting grooves 23, which can avoid the probability of the copper wire detaching from the contact roller 22 and ensure the guiding effect of the contact roller 22 on the copper wire.

[0021] like Figure 2 and Figure 5 As shown, the guide wire structure is located on one side of the stranding disc 11 to guide the copper wire. The wire guide structure includes a mounting base 30, a first guide roller 32, and a second guide roller 33. A first guide roller 32 and a second guide roller 33 are arranged around the mounting base 30. The mounting base 30 is fixedly mounted on the top of the frame 10 by a bracket. A slot 31 is opened on the top of the mounting base 30. The slot 31 is an L-shaped slot that extends from the top of the mounting base 30 to one side of the mounting base 30. The first guide roller 32 and the second guide roller 33 are both installed in the slot 31. In this scheme, the copper wire passes over the contact roller 22 and enters from the top of the slot 31 and exits from the side. Then, the copper wire will be wound around the first guide roller 32 and the second guide roller 33 in the same slot 31. By rotating the first guide roller 32 and the second guide roller 33, the copper wire is guided and limited, which can avoid the probability of the copper wire jumping in the hinge hole of the stranding disc 11 and ensure the stability of the wire feeding.

[0022] The working principle of this utility model is as follows: The motor is fixedly installed on the frame 10 via a bracket. The output shaft of the motor is connected to the stranding disc 11 via a coupling. A wire feeding disc should be provided on one side of the frame 10. The tension of a single copper wire is controlled by a set of adjustment structures, thereby ensuring that the tension of each stranded copper wire is consistent. This avoids the copper wire from being overstretched and breaking or from insufficient tension causing loose stranding, thus improving product quality. Specifically, the swing angle of the boom 21 is detected and fed back by a displacement sensor, and the copper wire passes over the contact roller 22, exerting a squeezing force on the contact roller 22 through the copper wire. The extrusion pressure is received by the displacement sensor and transmitted to the controller. The controller controls the output shaft of the electric push rod 20 to push the upper arm 21 to rotate around its hinge point, thereby achieving tension control of a single copper wire. After the copper wire passes around the contact roller 22, it enters from the top of the slot 31 and exits from the side. Then the copper wire will be wrapped around the first guide roller 32 and the second guide roller 33 in the same slot 31. The copper wire is guided and limited by the rotation of the first guide roller 32 and the second guide roller 33. The twisting disc 11 is driven by the motor to rotate, so that multiple strands of copper wire are twisted into one. The displacement sensor is a high-precision rotary potentiometer (such as model WDD35D4), whose shaft is coaxially connected to the shaft of the boom 21 via a coupling. The measurement angle range is 0-300°, and the linear accuracy is ±0.1%.

[0023] The controller uses a Siemens S7-1200 PLC and is equipped with analog input / output modules. The potentiometer's signal line is connected to the PLC's analog input channel, and the servo driver of the electric actuator 20 is connected to the PLC's analog output channel.

[0024] The control program employs a PID algorithm, with the proportional gain Kp set within the range of 0.5-2.0, the integral time Ti within the range of 0.1-1.0 s, and the derivative time Td within the range of 0-0.5 s. The tension setpoint is input via a human-machine interface (HMI) and can be adjusted within the range of 5-50 N. The electric actuator 20 is a servo electric cylinder with a rated thrust of 500N, a stroke of 100mm, and a repeatability of ±0.02mm. The end of the actuator 20 is connected to the boom 21 via a fisheye connector to ensure rotational freedom.

[0025] The contact roller 22 has a hard chrome plated surface with a surface roughness Ra≤0.2μm, a diameter of 50mm, and a length of 80mm. Deep groove ball bearings (model 608ZZ) are installed at both ends of the roller body to ensure flexible rotation.

[0026] The boom 21 is made of 6061 aluminum alloy casting with a wall thickness of 8mm and a weight of ≤2kg, ensuring rapid response capability. A self-lubricating copper bushing is installed at the boom 21's pivot point, with a friction coefficient of ≤0.08. Multiple adjustment mechanisms are interconnected via a PROFINET bus and coordinated by the main controller. Upon power-up, the system executes an automatic calibration procedure: each electric actuator 20 returns to zero, the potentiometer reading is zeroed, and then the tension is slowly increased to the set value. The characteristic curves of each channel are recorded. During operation, the main controller compares the tension signals of each channel in real time. If the deviation exceeds the set value (e.g., ±10%), the output is automatically adjusted to ensure consistent tension across all copper wires. The system sampling period is ≤10ms, and the response time is ≤100ms. The system features multiple protections: immediate shutdown upon detecting abnormal tension (exceeding the set value by 150% or falling below 50%); soft and hard limits are set for the electric actuators 20; and the electromagnetic brake automatically locks in the event of a sudden power failure to prevent uncontrolled swinging of the boom 21.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A copper wire stranding device, characterized in that, include: A frame (10) is provided with a twisting disc (11) for twisting wires rotatably mounted on the frame (10), and a motor for driving the twisting disc (11) is fixedly mounted on one side of the frame (10). A wire guide structure is provided on one side of the stranding disc (11) to guide the copper wire; An adjustment structure is set on one side of the frame (10) for adjusting the tension of a single strand of copper wire. The adjustment structure includes an electric push rod (20), a large arm (21) and a contact roller (22). The top of the frame (10) is provided with an integrally formed upright plate. The electric push rod (20) and the large arm (21) are both hinged to the upright plate. The output shaft of the electric push rod (20) is axially connected to the large arm (21). The contact roller (22) rotates to the top of the large arm (21). A set of adjustment structures is set around the four sides of the upright plate.

2. The copper wire stranding device according to claim 1, characterized in that: The upright plate is welded with a seat plate, and the electric actuator (20) and the upper arm (21) are respectively hinged to two sets of seat plates. The upper arm (21) and the electric actuator (20) are distributed in a V-shape.

3. The copper wire stranding device according to claim 1, characterized in that: The top of the upper arm (21) is provided with a mounting groove (23) for mounting a contact roller (22), and the end of the contact roller (22) is axially connected to the inner wall of the mounting groove (23).

4. The copper wire stranding device according to claim 3, characterized in that: Two contact rollers (22) are installed in the mounting groove (23), and the two contact rollers (22) are distributed in an X shape.

5. The copper wire stranding device according to claim 1, characterized in that: The wire guide structure includes a mounting base (30), a first guide roller (32), and a second guide roller (33). A first guide roller (32) and a second guide roller (33) are provided around the mounting base (30). The mounting base (30) is fixedly mounted on the top of the frame (10) by a bracket.

6. The copper wire stranding device according to claim 5, characterized in that: The top of the mounting base (30) is provided with a slot (31), which is an L-shaped slot. The slot (31) extends from the top of the mounting base (30) to one side of the mounting base (30). The first guide roller (32) and the second guide roller (33) are both installed in the slot (31).

7. The copper wire stranding device according to claim 1, characterized in that: The adjustment structure also includes a displacement sensor and a controller. The displacement sensor is located on the rotation path of the boom (21), and both the displacement sensor and the electric push rod (20) are electrically connected to the controller. The controller is configured to receive the position signal of the boom (21) detected by the displacement sensor and control the extension and retraction of the electric push rod (20) according to the signal to dynamically adjust the pressure on the copper wire and thus maintain the constant tension of the copper wire.

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