An adjustable tension device for cable core entry and exit positions

Abstract

This utility model discloses an adjustable tension device for cable core entry and exit positions, belonging to the field of cable processing technology. It includes a mounting plate and a tension wheel, guide wheel, inlet mechanism, and outlet mechanism mounted on the mounting plate. Both the inlet and outlet mechanisms are located close to the tension wheel. The inlet mechanism includes an inlet slide and an inlet wheel rotatably mounted on the inlet slide. The inlet slide is movable along the axial direction of the tension wheel, and an inlet groove is provided on the outer circumferential surface of the inlet wheel. The outlet mechanism includes an outlet slide and an outlet wheel rotatably mounted on the outlet slide. The outlet wheel is movable in a direction closer to or further away from the tension wheel. The cable core passes through the inlet groove and is wound onto the tension wheel, then passes through the outlet groove and is wound onto the guide wheel. This tension device, by adjusting the inlet position, avoids cross-contact between the inlet and outlet cables, preventing cable core friction and ensuring smooth entry and exit of the cable core from the tension wheel, further reducing cable core wear and ensuring product quality.

Description

Technical Field

[0001] This utility model relates to the field of cable processing equipment technology, and in particular, to a tension device with adjustable cable core entry and exit position. Background Technology

[0002] Before entering the extrusion machine, cable cores (referred to as cable cores) typically require a tensioning device to increase their tension, reduce tension fluctuations, and improve the extrusion effect. Current tensioning devices are usually tension wheels with built-in damping. During operation, the cable core enters horizontally into the groove of the tension wheel, then passes around the wheel once before exiting upwards. During transmission, the tension wheel provides resistance, maintaining tension on the cable core. However, in existing technology, the cable cores entering and exiting the tension wheel often come into contact with each other, resulting in friction during transmission. This friction causes surface wear and increases transmission resistance, especially when the cable core tension is high. This wear can lead to reduced cable core quality, affecting subsequent extrusion quality and ultimately lowering the overall cable quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned defects in the prior art, a tension device is provided to prevent cross contact when the cable core enters and exits the tension wheel.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an adjustable tension device for cable core entry and exit positions, including a mounting plate and a tension wheel, a guide wheel, an entry mechanism, and an exit mechanism mounted on the mounting plate. The entry mechanism and the exit mechanism are both located close to the tension wheel. The entry mechanism includes an entry slide and an entry wheel rotatably mounted on the entry slide. The entry slide is movable relative to the mounting plate along the axial direction of the tension wheel. An entry groove is provided on the outer circumferential surface of the entry wheel. The exit mechanism includes an exit slide and an exit wheel rotatably mounted on the exit slide. The exit wheel is movable relative to the mounting plate in a direction closer to or farther from the tension wheel. An exit groove is provided on the outer circumferential surface of the exit wheel. The cable core passes through the entry groove and is wound around the tension wheel, and then passes through the exit groove and is wound around the guide wheel.

[0005] Furthermore, the central axis of the feed wheel is perpendicular to the central axis of the tension wheel.

[0006] Furthermore, the tension wheel has a disc-shaped structure, and an annular groove is formed on the outer circumferential surface of the tension wheel. The cable core is wound around the groove wall of the annular groove.

[0007] Furthermore, a magnetic powder brake is mounted on the side of the mounting plate opposite the tension wheel, and the tension wheel is mounted on the magnetic powder brake.

[0008] Furthermore, the cable inlet mechanism also includes a cable inlet fixing seat, which is fixedly connected to the mounting plate, and the cable inlet slide is slidably mounted on the cable inlet fixing seat.

[0009] Furthermore, the feed mechanism also includes a first fixing plate and a first bolt. The first fixing plate is fixedly connected to the feed fixing seat, the first bolt passes through the first fixing plate and is threadedly connected to the first fixing plate, and the end of the first bolt is rotatably connected to the feed slide.

[0010] Furthermore, the cable outlet mechanism also includes a cable outlet fixing seat, which is fixedly connected to the mounting plate, and the cable outlet slide is slidably mounted on the cable outlet fixing seat.

[0011] Furthermore, the cable outlet mechanism also includes a second fixing plate and a second bolt. The second fixing plate is fixedly connected to the cable outlet fixing seat, the second bolt passes through the second fixing plate and is threadedly connected to the second fixing plate, and the end of the second bolt is rotatably connected to the cable outlet slide.

[0012] Furthermore, the guide wheel has a disc-shaped structure, and the center of the guide wheel is rotatably mounted on the mounting plate. A guide groove is formed on the outer circumferential surface of the guide wheel.

[0013] The beneficial effects of this utility model are as follows: The adjustable tension device for the cable core entry and exit position of this utility model allows the cable core to achieve directional migration under the action of the inlet wheel and outlet wheel when entering and exiting the tension wheel, respectively. By adjusting the position of the inlet wheel, it can be ensured that the cable core will not cross contact with each other when entering and exiting the tension wheel, thus avoiding wear of the cable core when entering and exiting the tension wheel. At the same time, the inlet wheel and outlet wheel can rotate when the cable core passes through, reducing friction and facilitating smooth entry and exit of the cable core from the tension wheel, further reducing cable core wear and ensuring product quality. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a perspective view of the adjustable tension device for the cable core entry and exit position of this utility model;

[0016] Figure 2 yes Figure 1 A perspective view of the adjustable tension device for the cable core entry and exit positions.

[0017] Figure 3 yes Figure 2A partial enlarged view of point A in the adjustable tension device for cable core entry and exit positions shown;

[0018] Figure 4 yes Figure 1 The front view of the adjustable tension device for cable core entry and exit positions is shown.

[0019] Figure 5 yes Figure 1 The right view of the adjustable tension device for the cable core entry and exit positions shown.

[0020] In the diagram: 100, cable core; 1, mounting plate; 2, tension wheel; 21, annular groove; 3, guide wheel; 31, guide groove; 4, cable inlet mechanism; 41, cable inlet slide; 42, cable inlet wheel; 421, cable inlet groove; 43, cable inlet fixing seat; 44, first fixing plate; 45, first bolt; 5, cable outlet mechanism; 51, cable outlet slide; 52, cable outlet wheel; 521, cable outlet groove; 53, cable outlet fixing seat; 54, second fixing plate; 55, second bolt. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] Please see Figures 1-5 This utility model provides an adjustable tension device for cable core entry and exit positions, including a mounting plate 1, a tension wheel 2, a guide wheel 3, an infeed mechanism 4, and an exit mechanism 5. The tension wheel 2 and guide wheel 3 are both mounted on the mounting plate 1, with the guide wheel 3 positioned above the tension wheel 2. The infeed mechanism 4 and exit mechanism 5 are both mounted on the mounting plate 1 and positioned close to the tension wheel 2. During processing, the cable core 100 released from the cable reel passes horizontally through the infeed mechanism 4 and then winds around the tension wheel 2. It then passes through the exit mechanism 5 and exits from the tension wheel 2, finally passing around the guide wheel 3 before entering the extrusion machine to complete the subsequent extrusion processing.

[0023] The wire feeding mechanism 4 includes a wire feeding slide 41 and a wire feeding wheel 42. The wire feeding wheel 42 is rotatably mounted on the wire feeding slide 41. The wire feeding slide 41 is movable relative to the mounting plate 1 along the axial direction of the tension wheel 2. A wire feeding groove 421 is provided on the outer peripheral surface of the wire feeding wheel 42. The wire discharging mechanism 5 includes a wire discharging slide 51 and a wire discharging wheel 52. The wire discharging wheel 52 is rotatably mounted on the wire discharging slide 51. The wire discharging slide 51 is movable relative to the mounting plate 1 in a direction closer to or farther from the tension wheel 42. A wire discharging groove 521 is provided on the outer peripheral surface of the wire discharging wheel 52.

[0024] During operation, the cable core 100 passes through the inlet slot 421 of the inlet wheel 42 (see [reference]). Figure 5The cable core enters the tension wheel 2 at point B in the middle, and after winding around once, it passes through the outlet groove 521 of the outlet wheel 52, and then enters the guide wheel 3. During the traction process of the cable core, the tension wheel 2 rotates under the action of friction between the cable core and the tension wheel 2 to overcome the damping effect, thereby ensuring the tension of the cable core.

[0025] During the traction process, when the cable core 100 is inserted, it abuts against the insertion groove 421 of the insertion wheel 42, and when it exits, it abuts against the exit groove 521 of the exit wheel 52. Therefore, the insertion wheel 42 and the exit wheel 52 can respectively limit the insertion and exit positions of the cable 100. When the insertion slide 41 is moved, the insertion wheel 42 can be moved, thereby adjusting the insertion position of the cable core 100 along the axial direction of the tension wheel 2 to avoid the insertion and exit positions from contacting and rubbing against each other, thus avoiding cross-wearing of the cable. At the same time, during the migration of the cable core 100, the insertion wheel 42 and the exit wheel 52 will rotate, thereby reducing the friction on the cable core 100, facilitating smooth movement, and further reducing wear on the cable core 100. In addition, the position of the cable exit wheel 52 can be changed by moving the cable exit slide 51, thereby making the cable exit position of the cable core 100 move away from or closer to the tension wheel 2. When the cable exit position is far away from the tension wheel 2, the length of the cable core 100 wound on the tension wheel 2 decreases. When the cable exit position is close to the tension wheel 2, the length of the cable core 100 wound on the tension wheel 2 increases. In this way, the tension of the cable core 100 can be adjusted by adjusting the contact friction between the cable core 100 and the tension wheel 2.

[0026] In this embodiment, the central axis of the feed wheel 42 is perpendicular to the central axis of the tension wheel 2, and the central axis of the output wheel 52 is parallel to the central axis of the tension wheel 2.

[0027] The tension wheel 2 has a disc-shaped structure, and an annular groove 21 is formed on the outer circumference of the tension wheel 2. The cable core 100 is wound around the groove wall of the annular groove 21 after passing through the feed wheel 42. During installation, the feed mechanism 4 is installed at a suitable height so that when the cable core 100 passes horizontally through the feed wheel 42, it can enter the annular groove 21 along the horizontal tangent at the top of the annular groove 21. This prevents the portion of the cable core 100 between the feed wheel 42 and the tension wheel 2 from bending longitudinally, and prevents the cable core 100 from detaching from the feed groove 421 of the feed wheel 42.

[0028] In this embodiment, a magnetic powder brake (not shown) is mounted on the side of the mounting plate 1 opposite to the tension wheel 2. The tension wheel 2 is mounted on the magnetic powder brake. When in operation, after the magnetic powder brake is energized, a binding force is generated between the stator and rotor on it, applying a certain braking torque to the rotor, thereby providing rotational resistance to the tension wheel 2. The magnetic powder brake is prior art, and its structure and working principle will not be described in detail here.

[0029] The guide wheel 3 has a disc-shaped structure. The center of the guide wheel 3 is rotatably mounted on the mounting plate 1. A guide groove 31 is provided on the outer circumference of the guide wheel 3. After passing through the lead wheel 52, the cable core 100 moves upward and finally passes around the guide groove 31 before entering the extrusion machine.

[0030] The cable inlet mechanism 4 also includes a cable inlet fixing seat 43, which is fixedly connected to the mounting plate 1. The cable inlet slide 41 is slidably mounted on the cable inlet fixing seat 43. In this embodiment, the cable inlet fixing seat 43 is fixedly mounted on the mounting plate 1 by bolts, and the cable inlet slide 41 and the cable inlet fixing seat 43 are slidably connected by a sliding rail and a sliding groove structure that cooperate with each other.

[0031] The wire feeding mechanism 4 also includes a first fixing plate 44 and a first bolt 45. The first fixing plate 44 is fixedly connected to the wire feeding fixing seat 43. The first bolt 45 passes through the first fixing plate 44 and is threadedly connected to the first fixing plate 44. The end of the first bolt 45 is rotatably connected to the wire feeding slide 41. In one specific embodiment, a bearing is installed between the end of the first bolt 45 and the wire feeding slide 41. When adjusting the position of the wire feeding slide 41 and the wire feeding wheel 42 on it, the user can rotate the first bolt 45. Under the threaded connection between the first bolt 45 and the first fixing plate 44, the wire feeding slide 41 can be moved, thereby realizing the adjustment of the position of the wire feeding wheel 42.

[0032] The cable outlet mechanism 5 also includes a cable outlet fixing seat 53, which is fixedly connected to the mounting plate 1 by bolts. The cable outlet slide 51 is slidably mounted on the cable outlet fixing seat 53. In addition, the cable outlet slide 51 and the cable outlet fixing seat 53 can also be slidably connected by a matching slide rail or slide groove structure.

[0033] The cable exiting mechanism 5 also includes a second fixing plate 54 and a second bolt 55. The second fixing plate 54 is fixedly connected to the cable exiting fixing seat 53, and the second bolt 55 passes through the second fixing plate 54 and is threadedly connected to the second fixing plate 54. The end of the second bolt 55 is rotatably connected to the cable exiting slide 51. In specific implementations, a bearing can also be set at the connection between the second bolt 55 and the cable exiting slide 51 to provide support. When adjusting the position of the cable exiting slide 51, the user only needs to rotate the second bolt 55 to drive the cable exiting slide 51 to slide relative to the cable exiting fixing seat 53, which in turn drives the cable exiting wheel 52 on it to move.

[0034] This utility model discloses an adjustable tension device for the cable core's entry and exit positions. When the cable core 100 enters the tension wheel 2 and exits the tension wheel 2, it can achieve directional migration under the action of the inlet wheel 42 and the outlet wheel 52, respectively. By adjusting the position of the inlet wheel 42, it can be ensured that the cable core 100 will not cross contact with each other when entering and exiting the tension wheel 2, thus avoiding wear on the cable core 100 when entering and exiting the tension wheel 2. At the same time, the inlet wheel 42 and the outlet wheel 52 can rotate when the cable core 100 passes through, reducing friction and facilitating the smooth entry and exit of the cable core 100 into and out of the tension wheel 2, further reducing wear on the cable core 100 and ensuring product quality.

[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tension device with adjustable cable core entry / exit position, characterized in that: The device includes a mounting plate and a tension wheel, a guide wheel, an infeed mechanism, and an outfeed mechanism mounted on the mounting plate. The infeed mechanism and the outfeed mechanism are both located close to the tension wheel. The infeed mechanism includes an infeed slide and an infeed wheel rotatably mounted on the infeed slide. The infeed slide is movable relative to the mounting plate along the axial direction of the tension wheel. An infeed groove is provided on the outer circumferential surface of the infeed wheel. The outfeed mechanism includes an outfeed slide and an outfeed wheel rotatably mounted on the outfeed slide. The outfeed wheel is movable relative to the mounting plate in a direction closer to or farther from the tension wheel. An outfeed groove is provided on the outer circumferential surface of the outfeed wheel. The cable core passes through the infeed groove and is wound around the tension wheel, and then passes through the outfeed groove and is wound around the guide wheel.

2. The adjustable tension device for cable core entry / exit position as described in claim 1, characterized in that: The central axis of the feed wheel is perpendicular to the central axis of the tension wheel.

3. The adjustable tension device for cable core entry / exit position as described in claim 2, characterized in that: The tension wheel has a disc-shaped structure, and an annular groove is formed on the outer circumferential surface of the tension wheel. The cable core is wound around the groove wall of the annular groove.

4. The adjustable tension device for cable core entry / exit position as described in claim 1, characterized in that: A magnetic powder brake is mounted on the side of the mounting plate opposite to the tension wheel, and the tension wheel is mounted on the magnetic powder brake.

5. The adjustable tension device for cable core entry / exit position as described in claim 1, characterized in that: The cable inlet mechanism also includes a cable inlet fixing seat, which is fixedly connected to the mounting plate, and the cable inlet slide is slidably mounted on the cable inlet fixing seat.

6. The adjustable tension device for cable core entry / exit position as described in claim 5, characterized in that: The feed mechanism further includes a first fixing plate and a first bolt. The first fixing plate is fixedly connected to the feed fixing seat, the first bolt passes through the first fixing plate and is threadedly connected to the first fixing plate, and the end of the first bolt is rotatably connected to the feed slide.

7. The adjustable tension device for cable core entry / exit position as described in claim 1, characterized in that: The cable outlet mechanism also includes a cable outlet fixing seat, which is fixedly connected to the mounting plate, and the cable outlet slide is slidably mounted on the cable outlet fixing seat.

8. The adjustable tension device for cable core entry / exit position as described in claim 7, characterized in that: The cable outlet mechanism further includes a second fixing plate and a second bolt. The second fixing plate is fixedly connected to the cable outlet fixing seat, the second bolt passes through the second fixing plate and is threadedly connected to the second fixing plate, and the end of the second bolt is rotatably connected to the cable outlet slide.

9. The adjustable tension device for cable core entry / exit position as described in claim 1, characterized in that: The guide wheel has a disc-shaped structure, and its center is rotatably mounted on the mounting plate. A guide groove is formed on the outer circumferential surface of the guide wheel.

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