Tension device for copper clad aluminium wire

Abstract

The utility model discloses a copper clad aluminum wire tension device belongs to wire and cable production equipment technical field, including fixed frame and install on the fixed frame and winding mechanism, be provided with tension assembly in winding mechanism, and tension assembly includes slide rail, the slide plate of sliding connection in slide rail, rotatablely installed on the pivot of slide plate and the cylinder of drive slide plate movement, copper wire is around the pivot, and the cylinder changes the pivot height through drive slide plate up and down removal, realizes the dynamic regulation to copper wire tension, and the device still includes the tensioning mechanism, and the tensioning mechanism carries out basic tension setting to copper wire before entering winding mechanism through the change of outer periphery diameter. The utility model discloses through the combination of basic tension setting and dynamic tension compensation, solved the tension fluctuation of prior art, control the problem of not accurate, realized the stable, accurate control to copper wire tension, effectively guaranteed the product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of wire and cable production equipment, and in particular to a copper-clad aluminum wire tensioning device. Background Technology

[0002] Copper-clad aluminum wire is an important conductor material widely used in the wire and cable industry. Its manufacturing process typically involves high-speed winding of copper strip or wire around an aluminum core. In this process, the tension of the copper wire is a crucial process parameter.

[0003] The stability of copper wire tension directly affects the quality of the final product. Excessive tension may cause the copper wire to be overstretched or even break, or cause deformation of the aluminum core wire; while insufficient tension will result in a loose copper layer, poor adhesion, and gaps, affecting the product's conductivity and mechanical strength.

[0004] Currently, some copper-clad aluminum wire production equipment uses passive tensioning devices, such as spring-loaded friction wheels or magnetic powder brakes, to apply a constant damping force to the pay-off reel, thereby providing basic tension for the copper wire. This tension is set once before production begins and remains essentially constant throughout the process.

[0005] However, during the dynamic process of high-speed winding, the actual tension of the copper wire will inevitably fluctuate in real time due to equipment vibration, continuous changes in the diameter of the pay-off reel, and slight differences in the diameter of the wire itself. The aforementioned passive tension device cannot actively sense and quickly respond to these instantaneous changes, lacking dynamic compensation capabilities.

[0006] The lack of this dynamic compensation capability results in unstable copper wire tension in actual production, making it difficult to maintain it within the optimal process range, thus affecting the uniformity and reliability of the final product. Utility Model Content

[0007] In view of the problems existing in the copper-clad aluminum wire tensioning device, such as the inability to dynamically compensate for the tension of the copper wire during high-speed winding, resulting in large tension fluctuations and low control accuracy, this utility model aims to provide a copper-clad aluminum wire tensioning device with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a copper-clad aluminum wire tension device, including a fixed frame and a winding mechanism installed on the fixed frame. The winding mechanism includes a motor for driving, a gear mechanism for transmission, and a fixed cylinder driven to rotate by the gear mechanism. The device also includes a tension component disposed within the winding mechanism.

[0009] The tension assembly includes a slide rail arranged vertically, a slide plate slidably connected to the slide rail, a pivot rotatably mounted on the slide plate, and a cylinder that drives the slide plate to reciprocate along the slide rail.

[0010] Furthermore, the fixing frame, winding mechanism, and tension assembly are combined in the following way: the cylinder body is fixed to the fixing frame, the cylinder piston rod is connected to the slide plate, and the copper wire is wound around the rotating shaft set on the slide plate before being wound around the aluminum wire passing through the fixing cylinder. The cylinder drives the slide plate to move up and down, thereby changing the height of the rotating shaft and realizing the dynamic adjustment of the tension of the copper wire.

[0011] Preferably, a copper-clad aluminum wire tensioning device further includes a tensioning mechanism mounted on a fixed frame and located on the wire inlet side of the winding mechanism. The tensioning mechanism includes a rotating shaft, a turntable, a moving ring, an adjusting rod, a connecting rod, and connecting plates. By rotating the rotating shaft, the adjusting rod is driven to move radially via the moving ring and connecting rod, thereby changing the outer circumferential diameter formed by multiple connecting plates, which is used to set the basic tension of the copper wire initially wound around the outer circumference of the connecting plates.

[0012] Preferably, in order to reduce friction during shaft rotation and improve response speed, both ends of the shaft are rotatably connected to the slide plate via bearing two, and the outer ring of bearing two is fixedly connected to the slide plate to provide stable rolling support for the rotation of the shaft.

[0013] Preferably, in order to achieve stable and direct drive, the cylinder body is fixedly connected to the fixed frame, and the cylinder piston rod is directly fixedly connected to the slide plate, forming a direct linear drive relationship and ensuring the precise transmission of adjustment actions.

[0014] Preferably, the tensioning mechanism has multiple connecting plates arranged circumferentially to form a cylindrical surface whose diameter can vary with the radial movement of the adjusting rod, providing a continuous and smooth contact surface for the copper wire and avoiding damage to the wire due to surface discontinuity.

[0015] Preferably, the tensioning mechanism has multiple adjusting rods that are evenly distributed along the radial direction of the turntable and slidably housed in the grooves opened on the turntable. This structural design can ensure the synchronization and structural stability of the multi-link mechanism during the transmission process.

[0016] Preferably, in order to reliably lock after the basic tension is set, a screw is fixedly connected to one end of the rotating shaft of the tensioning mechanism, and a nut is threaded onto the screw. The nut is used to abut against the fixed frame after adjustment to lock the position of the rotating shaft, thereby preventing unexpected changes during equipment operation vibration.

[0017] Preferably, bolts are fixedly connected to the outer walls of both ends of the fixed cylinder of the winding mechanism. The bolts are used to install gears or to add counterweights to improve rotational stability, thus ensuring smooth operation during the winding process.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problem of large tension fluctuations and inability to compensate in real time during the winding process in the prior art by setting a tension component driven by a cylinder. The tension component changes the path of the copper wire by moving the rotating shaft of the copper wire up and down. It achieves the technical effect of dynamically and accurately adjusting the winding tension, and significantly improves the winding quality and performance consistency of copper-clad aluminum wire.

[0020] 2. This utility model solves the problems of limited response range and insufficient control stability of a single adjustment method by setting an adjustable diameter tensioning mechanism and a dynamically adjustable tension component in synergy. It achieves the technical effect of dual control of copper wire tension through "basic setting" and "dynamic fine adjustment", making the overall tension control system more stable and reliable.

[0021] 3. This utility model solves the problems of jamming, high friction, and insensitive response that may occur in the adjustment mechanism during movement by adopting a guide structure of slide rail and slide plate in the moving part of the tension component and setting a bearing at the rotating shaft. This achieves the goals of reducing motion friction, improving adjustment sensitivity, and extending the service life of the equipment. Attached Figure Description

[0022] Figure 1 This is a perspective view of a copper-clad aluminum wire tension device proposed in this utility model;

[0023] Figure 2 This is a top view of a copper-clad aluminum wire tensioning device proposed in this utility model;

[0024] Figure 3 This is a partial structural schematic diagram of a copper-clad aluminum wire tension device proposed in this utility model;

[0025] Figure 4 This is a partial structural exploded view of a copper-clad aluminum wire tensioning device proposed in this utility model.

[0026] Legend:

[0027] 1. Fixing frame; 2. Winding mechanism; 201. Motor; 202. Gear 1; 203. Gear 2; 204. Fixing cylinder; 205. Bolt; 206. Tension assembly; 2061. Slide rail; 2062. Slide plate; 2063. Bearing 2; 2064. Rotating shaft; 2065. Cylinder; 3. Tensioning mechanism; 301. Rotating shaft; 302. Turntable; 303. Connecting rod; 304. Moving ring; 305. Adjusting rod; 306. Connecting plate; 307. Screw; 308. Nut. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example:

[0030] Please refer to Figures 1 to 4 This utility model provides a copper-clad aluminum wire tension device, which aims to solve the technical problem of large fluctuations in copper wire tension and difficulty in dynamic and precise control during the winding process of copper-clad aluminum wire in the prior art.

[0031] like Figure 1 and Figure 2 As shown, a copper-clad aluminum wire tension device includes a fixed frame 1 and a winding mechanism 2 mounted on the fixed frame 1. The fixed frame 1 serves as the mounting base for the entire device and is used to support all other components. The winding mechanism 2 is used to perform the winding action of the copper wire and to dynamically adjust the tension of the copper wire.

[0032] Specifically, the winding mechanism 2 includes a motor 201 for driving, a gear mechanism connected to the motor 201 for driving the fixed cylinder 204 to rotate, and a tension assembly 206 for dynamically adjusting the tension; wherein, the gear mechanism includes a first gear 202 and a second gear 203, the output shaft of the motor 201 is fixedly connected to the second gear 203, the second gear 203 meshes with the first gear 202 for transmission, the first gear 202 is coaxially fixedly connected to the fixed cylinder 204, thereby transmitting the power of the motor 201 to the fixed cylinder 204; when the equipment is working, the aluminum wire is suitable to pass through the center of the fixed cylinder 204, and the copper wire is wound around the outer circumference of the aluminum wire under the rotation of the fixed cylinder 204; bolts 205 are also fixedly connected to the outer walls at both ends of the fixed cylinder 204, the bolts 205 are used to install the first gear 202 or to add counterweight to improve rotational stability;

[0033] The tension assembly 206 includes a slide rail 2061 vertically mounted on a fixed frame 1, a slide plate 2062 slidably connected to the slide rail 2061, a rotating shaft 2064 rotatably mounted on the slide plate 2062, and a cylinder 2065 whose output end is connected to the slide plate 2062 to drive the slide plate 2062 to reciprocate along the slide rail 2061. Specifically, the cylinder body of the cylinder 2065 is fixedly connected to the fixed frame 1, and the piston rod of the cylinder 2065 is fixedly connected to the slide plate 2062, thereby achieving tension on the slide plate 2062. The cylinder 2065 drives the rotating shaft 2064 up and down. To ensure the smooth rotation of the rotating shaft 2064, both ends of the rotating shaft 2064 are rotatably connected to the sliding plate 2062 through bearing 2063. The outer ring of bearing 2063 is fixedly connected to the sliding plate 2062. During the tension adjustment process, the copper wire in the copper-clad aluminum wire is suitable to be wound around the rotating shaft 2064 before being wound around the aluminum wire. The cylinder 2065 drives the sliding plate 2062 to move up and down, thereby changing the height of the rotating shaft 2064, and finally changing the length of the copper wire path to achieve the purpose of adjusting the tension of the copper wire.

[0034] Please refer to Figure 4 The tensioning mechanism 3 includes a rotating shaft 301, a turntable 302 coaxially arranged with the rotating shaft 301, multiple adjusting rods 305 radially slidably arranged on the turntable 302, a moving ring 304 threadedly connected to the rotating shaft 301, multiple connecting rods 303 with their ends respectively hinged to the moving ring 304 and the adjusting rods 305, and multiple connecting plates 306 fixedly connected to the outer ends of the adjusting rods 305. The tensioning mechanism 3 is installed on the fixed frame 1 and located on the wire inlet side of the winding mechanism 2. Its function is to provide a controllable basic tension for subsequent dynamic tension adjustment.

[0035] In the assembled state, multiple adjusting rods 305 are evenly distributed radially along the turntable 302 and slidably housed in the grooves opened in the turntable 302. Multiple connecting plates 306 are arranged circumferentially to form a cylindrical surface whose diameter can change with the radial movement of the adjusting rods 305. When the rotating shaft 301 is rotated, the moving ring 304 moves axially along the rotating shaft 301, pushing or pulling the adjusting rods 305 radially within the turntable 302 via the connecting rods 303, thereby changing the outer circumferential diameter formed by the multiple connecting plates 306.

[0036] In the working state, before entering the winding mechanism 2, the copper wire is first wound on the outer cylindrical surface formed by multiple connecting plates 306. By changing the diameter of the cylindrical surface, the basic tension of the copper wire can be adjusted. This variable diameter pre-tensioning structure realized by the linkage mechanism ensures that the copper wire entering the dynamic adjustment stage has a stable and adjustable initial tension, effectively avoiding the problem of excessively loose or tight tension when releasing the wire from the source.

[0037] The locking of the tensioning mechanism 3 after adjustment is achieved by a screw 307 set at one end of the rotating shaft 301 and a nut 308 threaded onto the screw 307. The nut 308 is used to abut against the fixing frame 1 after adjustment to lock the position of the rotating shaft 301. The specific locking method of the rotating shaft 301 is a conventional technology in the field and will not be described in detail here.

[0038] In a preferred embodiment, in order to improve the smoothness and response speed of dynamic adjustment, the two ends of the rotating shaft 2064 are rotatably connected to the slide plate 2062 through the bearing 2063. Specifically, the outer ring of the bearing 2063 is fixedly connected to the slide plate 2062, and the two ends of the rotating shaft 2064 are fixedly connected to the inner ring of the bearing 2063. By replacing sliding friction with rolling friction, the frictional resistance of the rotating shaft 2064 when rotating at high speed is significantly reduced.

[0039] As another preferred embodiment, in order to achieve precise and stable driving of the slide plate 2062, the cylinder body of the cylinder 2065 is firmly fixedly connected to the fixed frame 1, and the end of the piston rod of the cylinder 2065 is fixedly connected to the slide plate 2062. By controlling the extension and retraction of the cylinder 2065, the slide plate 2062 is directly driven to achieve precise up and down reciprocating motion.

[0040] As another preferred embodiment, in order to ensure the adjustment range and structural stability of the tensioning mechanism 3, there are multiple connecting plates 306. These connecting plates 306 are evenly arranged in the circumferential direction and, under the radial movement of the adjusting rod 305, together form a cylindrical surface in which the diameter of the connecting plates 306 can change with the radial movement of the adjusting rod 305, thereby providing a continuous and smooth contact surface for the copper wire.

[0041] In another preferred embodiment, in order to ensure the synchronization and stability of the internal transmission of the tensioning mechanism 3, there are multiple adjusting rods 305. These adjusting rods 305 are evenly distributed along the radial direction of the turntable 302 and are slidably received in the groove opened in the turntable 302, ensuring that the multiple adjusting rods 305 can move radially synchronously under the drive of the moving ring 304.

[0042] In another preferred embodiment, in order to achieve reliable locking of the tensioning mechanism 3 after adjustment, a screw 307 is fixedly connected to one end of the rotating shaft 301, and a nut 308 is threaded onto the screw 307. After adjustment, the nut 308 is rotated to abut against the fixed frame 1 to lock the position of the rotating shaft 301, preventing the set basic tension from changing due to vibration during equipment operation.

[0043] In another preferred embodiment, in order to improve the stability of the winding mechanism 2 when it is running at high speed, bolts 205 are fixedly connected to the outer walls of both ends of the fixed cylinder 204. These bolts 205 are used to install gear 202 or to add counterweights to improve rotational stability, thus ensuring the dynamic balance of the fixed cylinder 204 when it is rotating at high speed.

[0044] Working principle: Before the winding operation, the basic tension of the copper wire is first set. The operator rotates the rotating shaft 301. Since the moving ring 304 is threadedly connected to the rotating shaft 301, the moving ring 304 will move along the axial direction of the rotating shaft 301. It will push or pull multiple adjusting rods 305 through the connecting rod 303. The adjusting rods 305 slide radially in the groove opened in the turntable 302. This action changes the diameter of the cylindrical surface formed by multiple connecting plates 306 fixed to the outer end of the adjusting rod 305. Since the copper wire is first wound around the outer circumference of these connecting plates 306 before entering the winding mechanism 2, the initial tension of the copper wire can be adjusted by changing the diameter of the connecting plates 306. After the adjustment is completed, the nut 308 is tightened to abut against the fixed frame 1 to lock the position of the rotating shaft 301, thereby completing the setting of the basic tension.

[0045] After the basic tension is set, motor 201 is started. Motor 201 drives the fixed cylinder 204 to rotate at high speed through the gear mechanism composed of gear 203 and gear 202. At this time, the aluminum wire passes through the center hole of the fixed cylinder 204, while the copper wire with the tension preset by the tensioning mechanism 3 winds around the rotating shaft 2064 in the tension assembly 206 and is guided to the outer periphery of the rotating fixed cylinder 204 to achieve winding of the aluminum wire. During the high-speed winding process, in order to achieve dynamic compensation and precise adjustment of the copper wire tension, the control system starts cylinder 20. 65. The piston rod of cylinder 2065 extends and retracts, driving slide plate 2062 to move up and down along slide rail 2061. Since the rotating shaft 2064 is mounted on slide plate 2062 through bearing 2063, the height of rotating shaft 2064 also changes accordingly. This height change directly changes the path length and angle of the copper wire before entering the winding point, thereby adjusting the tension of the copper wire in real time and actively. Through the synergistic effect of tensioning mechanism 3 and tension component 206, this utility model solves the problem of wire performance degradation caused by unstable tension in the prior art.

Claims

1. A copper-clad aluminum wire tensioning device, comprising a fixed frame (1) and a winding mechanism (2) mounted on the fixed frame (1), the winding mechanism (2) comprising a motor (201) for driving and a gear mechanism for driving a fixed cylinder (204) to rotate, the gear mechanism comprising a first gear (202) and a second gear (203), the aluminum wire being adapted to pass through the center of the fixed cylinder (204), characterized in that, The winding mechanism (2) further includes a tension assembly (206), which includes a slide rail (2061) arranged vertically on the fixed frame (1), a slide plate (2062) slidably connected to the slide rail (2061), a rotating shaft (2064) rotatably mounted on the slide plate (2062), and a cylinder (2065) whose output end is connected to the slide plate (2062) to drive the slide plate (2062) to reciprocate along the slide rail (2061). Before being wound around the aluminum wire, the copper wire in the copper-clad aluminum wire is suitable to be wound around the rotating shaft (2064). The cylinder (2065) adjusts the tension of the copper wire by changing the height of the rotating shaft (2064).

2. The copper-clad aluminum wire tensioning device according to claim 1, characterized in that, The device includes a tensioning mechanism (3), which is mounted on the fixed frame (1) and located on the wire inlet side of the winding mechanism (2). The tensioning mechanism (3) includes a rotating shaft (301), a turntable (302), a moving ring (304), an adjusting rod (305), a connecting rod (303), and a connecting plate (306). The moving ring (304) is threaded to the rotating shaft (301). The adjusting rod (305) is radially slidably disposed on the turntable (302). The connecting rod (303) is hinged between the moving ring (304) and the adjusting rod (305). The connecting plate (306) is fixed to the outer end of the adjusting rod (305). Before entering the winding mechanism (2), the copper wire is first wound around the outer periphery of the connecting plate (306).

3. The copper-clad aluminum wire tensioning device according to claim 1, characterized in that, The two ends of the rotating shaft (2064) are rotatably connected to the slide plate (2062) through bearing two (2063), and the outer ring of bearing two (2063) is fixedly connected to the slide plate (2062).

4. The copper-clad aluminum wire tensioning device according to claim 1, characterized in that, The cylinder body of the cylinder (2065) is fixedly connected to the fixed frame (1), and the piston rod of the cylinder (2065) is fixedly connected to the slide plate (2062) to realize the up and down driving of the slide plate (2062).

5. A copper-clad aluminum wire tensioning device according to claim 2, characterized in that, The connecting plate (306) has multiple plates arranged circumferentially to form a cylindrical surface whose diameter can change with the radial movement of the adjusting rod (305).

6. A copper-clad aluminum wire tensioning device according to claim 2, characterized in that, The adjusting rod (305) has multiple rods, which are evenly distributed along the radial direction of the turntable (302) and are slidably received in the groove opened in the turntable (302).

7. The copper-clad aluminum wire tensioning device according to claim 2, characterized in that, One end of the rotating shaft (301) is fixedly connected to a screw (307), and a nut (308) is threaded onto the screw (307). The nut (308) is used to abut against the fixing frame (1) after adjustment to lock the position of the rotating shaft (301).

8. The copper-clad aluminum wire tensioning device according to claim 1, characterized in that, Bolts (205) are fixedly connected to the outer walls of both ends of the fixed cylinder (204). The bolts (205) are used to install the gear (202) or to add counterweight to improve rotational stability.

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