An adaptive constant tension wrapping device for cable shielding layers

Abstract

The utility model discloses a kind of self-adapting constant tension winding devices for cable shielding layer, belong to cable processing technical field, including mounting bracket, wire roller is rotatably connected on the mounting bracket, cable is wound on wire roller, back-shaped frame is sleeved on the cable, directional wheel and dynamic wheel are rotatably installed in the back-shaped frame, directional wheel and dynamic wheel are clamped with cable, one side of the mounting bracket is rotatably connected with swing bar. By directional wheel and dynamic wheel, clamping cooperation structure is formed to cable, can accurately guide cable, ensure that cable always keeps preset wiring track in winding process, prevent cable from deviating, twist, at the same time, cooperate with the bending limiting action of positioning ring to cable, further constrain the movement posture of cable, so that the winding process of cable shielding layer can be carried out smoothly according to the established path, effectively improve the uniformity and tightness of shielding layer winding, guarantee the electromagnetic shielding performance of cable finished product.

Description

Technical Field

[0001] This utility model belongs to the field of cable processing technology, specifically, it relates to an adaptive constant tension winding device for cable shielding layers. Background Technology

[0002] In the cable manufacturing process, the winding quality of the cable shielding layer directly determines the cable's electromagnetic shielding performance, anti-interference capability, and overall service life. The tension stability of the cable during winding is a core factor ensuring the uniformity and tightness of the shielding layer winding. With the rapid development of industries such as power and communications, the market's quality requirements for cables are constantly increasing, placing higher standards on the precision and stability of the cable shielding layer winding process.

[0003] Currently, the tension control mechanisms of existing cable shielding winding devices are mainly divided into two categories: manual adjustment type and simple mechanical control type. Among them, the manual adjustment type requires operators to observe the cable winding status in real time based on production experience, and adjust the tension by manually rotating adjusting bolts to change the pressure between the guide wheel and the cable. This method not only requires a high level of operator experience, but also has a slow adjustment response, unable to promptly respond to sudden tension changes caused by factors such as changes in winding roller speed and cable specification fluctuations. This easily leads to excessive cable tension causing shielding layer stretching and damage, cable conductor deformation, or insufficient tension causing cable slack, loose shielding winding, and defects such as lamination and gaps, seriously affecting the quality of cable products.

[0004] Simple mechanical tension control mechanisms often employ a spring-loaded guide wheel structure to achieve tension control. This structure uses the elastic force of the spring to apply a constant pressure to the cable to maintain tension. However, this type of structure has significant drawbacks: firstly, the spring's elastic coefficient is fixed, limiting its tension adjustment range and making it unsuitable for winding cables of different diameters and materials, resulting in poor versatility; secondly, the spring is prone to elastic fatigue and deformation failure during long-term use, leading to a gradual decrease in tension control accuracy and requiring frequent spring replacements, increasing equipment maintenance costs and production downtime. To address the aforementioned issues, this application proposes an adaptive constant tension winding device for cable shielding layers. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes an adaptive constant tension winding device for cable shielding layers to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An adaptive constant tension winding device for cable shielding includes a mounting frame, a winding roller rotatably connected to the mounting frame, a cable wound on the winding roller, a spiral frame sleeved on the cable, a directional wheel and a moving wheel rotatably mounted inside the spiral frame, the directional wheel and the moving wheel clamping and cooperating with the cable, and a swing rod rotatably connected to one side of the mounting frame. The adaptive tension adjustment mechanism includes movable blocks. Movable holes are provided on both sides of the ring frame. The movable blocks are slidably connected to the corresponding movable holes, and the two movable blocks are movably connected to the moving wheel.

[0007] Preferably, the adaptive tension adjustment mechanism further includes a movable groove, which is opened on one side of the movable block and is movably connected to the central shaft of the moving wheel. A rubber sheet is installed on the top inner wall of the movable groove, and the rubber sheet cooperates with the moving wheel.

[0008] Preferably, the top of the two movable blocks is fixedly installed with the same portal frame, the top of the portal frame is slidably connected with a movable plate, both sides of the movable plate are provided with inclined grooves, and a movable shaft is slidably connected in the inclined grooves and fixedly connected to the portal frame.

[0009] Preferably, a mounting rod is fixedly installed on the top of the swing arm, and a positioning ring is fixedly installed on the top of the mounting rod, with the cable located inside the positioning ring.

[0010] Preferably, a counterweight is installed at the bottom of the swing arm, and a pull rod is rotatably connected to the top of the mounting rod, with the pull rod rotatably connected to the movable plate.

[0011] Preferably, a mounting plate is rotatably connected to one side of the mounting frame, and the mounting plate is rotatably connected to the swing arm.

[0012] In summary, the technical effects and advantages of this utility model are as follows: Through the coordinated design of the swing arm, counterweight, positioning ring, and adaptive tension adjustment mechanism, the friction force can be automatically adjusted according to the actual winding tension of the cable. When the winding tension of the winding roller increases, the cable tightening force increases, the bending angle of the positioning ring on the cable increases, causing the swing arm and mounting rod to change their posture. This, in turn, pulls the movable plate laterally via the pull rod. The sliding cooperation between the inclined groove and the movable shaft drives the gantry frame and movable block to move downward, increasing the pressure between the moving wheel and the rubber sheet, and increasing the friction force between the moving wheel and the directional wheel on the cable. When the winding tension decreases, the downward pull of the counterweight increases the drooping amplitude of the mounting rod, and the reverse drive mechanism reduces the friction force. This adaptive adjustment process requires no manual intervention and can always maintain the cable tension within a stable range, avoiding problems such as cable stretching and deformation and shielding layer damage due to excessive tension, or cable loosening and disordered winding arrangement due to insufficient tension.

[0013] The cable is precisely guided by the clamping structure formed by the directional wheel and the moving wheel, ensuring that the cable always maintains the preset trajectory during the winding process and preventing the cable from deviating or twisting. At the same time, the positioning ring further constrains the cable's movement by limiting its bending, allowing the cable shielding layer winding process to proceed smoothly along the predetermined path. This effectively improves the uniformity and tightness of the shielding layer winding and ensures the electromagnetic shielding performance of the finished cable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from below; Figure 3 This is a schematic diagram of the adaptive tension adjustment mechanism of this utility model; Figure 4 This is a side view of the mounting block structure of this utility model.

[0015] In the picture: 1. Mounting frame; 2. Winding roller; 3. Cable; 4. Swing rod; 5. Adaptive tension adjustment mechanism; 51. Movable hole; 52. Movable block; 53. Movable groove; 54. Rubber sheet; 55. Movable plate; 56. Portal frame; 57. Inclined groove; 58. Movable shaft; 59. Counterweight; 510. Mounting rod; 511. Positioning ring; 512. Tie rod; 6. Reverse frame; 7. Directional wheel; 8. Moving wheel; 9. Mounting plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 An adaptive constant tension winding device for cable shielding includes a mounting frame 1, a winding roller 2 rotatably connected to the mounting frame 1, a cable 3 wound on the winding roller 2, a spiral frame 6 sleeved on the cable 3, a directional wheel 7 and a moving wheel 8 rotatably installed inside the spiral frame 6, the directional wheel 7 and the moving wheel 8 clamping and cooperating with the cable 3, and a swing rod 4 rotatably connected to one side of the mounting frame 1. The adaptive tension adjustment mechanism 5 includes movable blocks 52. Movable holes 51 are provided on both sides of the U-shaped frame 6. The movable blocks 52 are slidably connected to the corresponding movable holes 51, and the two movable blocks 52 are movably connected to the moving wheel 8.

[0018] Reference Figure 3 and Figure 4The adaptive tension adjustment mechanism 5 also includes a movable groove 53, which is located on one side of the movable block 52 and is movably connected to the central shaft of the directional wheel 8. A rubber sheet 54 is installed on the top inner wall of the movable groove 53, and the rubber sheet 54 cooperates with the directional wheel 8. The tops of the two movable blocks 52 are fixedly mounted with the same portal frame 56. The top of the portal frame 6 is slidably connected to a movable plate 55. Inclined grooves 57 are provided on both sides of the movable plate 55, and a movable shaft 58 is slidably connected in the inclined grooves 57. The movable shaft 58 is connected to the central shaft of the directional wheel 8. The gantry frame 56 is fixedly connected and movably connected to the central shaft of the directional wheel 8 through the movable groove 53. Under the pressure of the rubber sheet 54, it can press the force between the directional wheel 8 and the rubber sheet 54, increasing the friction when the directional wheel 8 rotates, thereby increasing the friction between the directional wheel 8 and the directional wheel 7 on the cable 3, thus facilitating the adjustment of the tension of the cable 3. At the same time, the movable plate 55 is slidably connected to the movable shaft 58 through the inclined groove 57, thereby driving the gantry frame 56 to move, which in turn drives the movable block 52 to move up and down.

[0019] Reference Figure 1 A mounting rod 510 is fixedly installed on the top of the swing arm 4, and a positioning ring 511 is fixedly installed on the top of the mounting rod 510. The cable 3 is located inside the positioning ring 511. A counterweight 59 is installed at the bottom of the swing arm 4. A pull rod 512 is rotatably connected to the top of the mounting rod 510. The pull rod 512 is rotatably connected to the movable plate 55. Through the rotatable connection between the swing arm 4 and the mounting frame 1, and the downward pull of the counterweight 59 on the swing arm 4, the swing arm 4 pulls the cable 3 downward through the mounting rod 510 and the positioning ring 511, forming a certain bending angle. When the winding tension of the winding roller 2 is large, the cable 3 is tightened. The increased force causes the bending angle of the positioning ring 511 on the cable 3 to increase, and the mounting rod 510 and the swing rod 4 hang downward through the bending angle of the cable 3. When the angle is small, the mounting rod 510 hangs down a large distance under the action of the counterweight block 59. Then the mounting rod 510 pulls the movable plate 55 to move laterally through the pull rod 512. The moving movable plate 55 is slidably connected to the movable shaft 58 through the inclined groove 57, which can drive the gantry frame 56 to move up and down. This causes the gantry frame 56 and the movable block 52 to press the moving wheel 8, thereby adjusting the friction between the moving wheel 8 and the cable 3.

[0020] Reference Figure 1 One side of the mounting frame 1 is rotatably connected to a mounting plate 9. The mounting plate 9 is rotatably connected to the swing rod 4. Through the rotatable connection between the mounting plate 9 and the mounting frame 1, the swing rod 4 can be rotatably connected to the mounting frame 1 through the mounting plate 9, so that the vertical angle can be changed. At the same time, through the rotatable connection between the mounting plate 9 and the swing rod 4, it can swing back and forth with the return frame 6.

[0021] Working principle: During operation, the guide frame 6 is installed on the cable processing machine body 3. The rotating winding roller 2 winds the cable 3. At the same time, the directional wheel 7 and the moving wheel 8 guide and tighten the cable 3. The moving groove 53 is movably connected to the central shaft of the moving wheel 8. Under the pressure of the rubber sheet 54, the force between the moving wheel 8 and the rubber sheet 54 is pressed, increasing the friction when the moving wheel 8 rotates. This increases the friction between the moving wheel 8 and the directional wheel 7 on the cable 3, thus facilitating the adjustment of the cable tension. The swing rod 4 is rotatably connected to the mounting frame 1, and the counterweight 59 pulls down the swing rod 4, causing the swing rod 4 to connect with the mounting rod 510 and the positioning ring 511 to the cable 3. Pulling downwards and forming a certain bending angle, when the winding roller 2 has a large winding tension, the tightening force on the cable 3 increases, making the bending angle of the positioning ring 511 on the cable 3 larger, and the mounting rod 510 and the swing rod 4 hang downwards through the bending angle of the cable 3. When the angle is small, the mounting rod 510 hangs down a large amplitude under the action of the counterweight block 59. Then the mounting rod 510 pulls the movable plate 55 laterally through the pull rod 512. The moving movable plate 55 is slidably connected to the movable shaft 58 through the inclined groove 57, which can drive the gantry frame 56 to move up and down, thereby making the gantry frame 56 and the movable block 52 press the moving wheel 8, thereby adjusting the friction between the moving wheel 8 and the cable 3.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adaptive constant tension winding device for cable shielding, comprising a mounting frame (1), characterized in that, A winding roller (2) is rotatably connected to the mounting frame (1), and a cable (3) is wound on the winding roller (2). A spiral frame (6) is sleeved on the cable (3), and a directional wheel (7) and a moving wheel (8) are rotatably installed inside the spiral frame (6). The directional wheel (7) and the moving wheel (8) are clamped and cooperated with the cable (3). A swing rod (4) is rotatably connected to one side of the mounting frame (1). The adaptive tension adjustment mechanism (5) includes movable blocks (52), and movable holes (51) are provided on both sides of the circular frame (6). The movable blocks (52) are slidably connected to the corresponding movable holes (51), and the two movable blocks (52) are movably connected to the moving wheels (8).

2. The adaptive constant tension winding device for cable shielding layer according to claim 1, characterized in that, The adaptive tension adjustment mechanism (5) also includes a movable groove (53), which is located on one side of the movable block (52) and is movably connected to the central axis of the moving wheel (8). A rubber sheet (54) is installed on the top inner wall of the movable groove (53), and the rubber sheet (54) cooperates with the moving wheel (8).

3. The adaptive constant tension winding device for cable shielding layer according to claim 2, characterized in that, The top of the two movable blocks (52) is fixedly installed with the same portal frame (56), and the top of the loop frame (6) is slidably connected with a movable plate (55). Both sides of the movable plate (55) are provided with inclined grooves (57), and a movable shaft (58) is slidably connected in the inclined grooves (57). The movable shaft (58) is fixedly connected to the portal frame (56).

4. The adaptive constant tension winding device for cable shielding layer according to claim 1, characterized in that, The top of the swing arm (4) is fixedly installed with an installation rod (510), and the top of the installation rod (510) is fixedly installed with a positioning ring (511). The cable (3) is located inside the positioning ring (511).

5. The adaptive constant tension winding device for cable shielding layer according to claim 3, characterized in that, A counterweight (59) is installed at the bottom of the swing arm (4), and a pull rod (512) is rotatably connected to the top of the mounting rod (510). The pull rod (512) is rotatably connected to the movable plate (55).

6. The adaptive constant tension winding device for cable shielding layer according to claim 1, characterized in that, The mounting bracket (1) is connected to a mounting plate (9) on one side, which rotates up and down. The mounting plate (9) is connected to the swing rod (4) in a rotating manner.

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