A multi-strand harness tensioning device

Abstract

The utility model relates to cable tension adjusting device technical field discloses a kind of multi-strand wire harness uniform tension device, including a plurality of tension adjusting unit sequentially arranged distribution, and tension adjusting unit includes piston cylinder, and piston cylinder is equipped with adjusting piston in clearance fit and sliding, and adjusting piston separates the piston cylinder inside into tension adjusting chamber and control chamber;The control chamber of a plurality of tension adjusting units is interconnected and is commonly connected with tension control mechanism;Piston rod is equipped in tension adjusting chamber, and piston rod is fixedly connected with adjusting piston, and the end of piston rod far from piston is worn to tension regulation chamber outside and is fixedly connected with guide pulley support, and guide pulley support is equipped with guide pulley rotation. Through the utility model, the problem that each wire tension exists difference in the process of take-up and pay-off of existing tension control device can be solved.

Description

Technical Field

[0001] This utility model relates to the technical field of cable tension adjustment devices, specifically to a multi-strand wire harness tension equalization device. Background Technology

[0002] Multi-head wire drawing machines are becoming increasingly popular in the cable manufacturing industry due to their advantages such as high production efficiency, consistent product quality, energy saving, low operating costs, and ease of production management. The winding process of multi-head wire drawing is as follows: Figure 1 As shown, the common practice is to combine multiple monofilaments into a single bundle and then wind them onto a spool. In subsequent stranding processes, such as... Figure 2 As shown, the multi-strand wire bundle collected in a coil is then released and separated into individual strands by a wire splitter before being twisted into multi-strand conductor cores by a stranding machine.

[0003] During the aforementioned take-up and release processes, multiple conductors are combined into a single bundle using a shared tension control device. Due to slight differences in wire diameter and other factors, the actual tension of each conductor within this bundle varies. This tension difference directly affects the annealing effect of the conductors during the drawing process, resulting in uneven annealing hardness and inconsistent conductor elongation. In the stranding process, this tension difference can cause conductor skipping, back stranding, and bulging, ultimately impacting product quality. Utility Model Content

[0004] The present invention aims to provide a multi-strand wire harness tension equalization device to solve the problem of tension differences among conductors during the winding and unwinding processes of existing tension control devices.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-strand wire harness tension equalization device, comprising multiple tension adjustment units arranged sequentially, each tension adjustment unit comprising a piston cylinder, wherein an adjusting piston is slidably disposed within the piston cylinder with clearance fit, the adjusting piston dividing the interior of the piston cylinder into a tension adjustment chamber and a control chamber; the control chambers of the multiple tension adjustment units are interconnected and are jointly connected to a tension control mechanism; a piston rod is disposed within the tension adjustment chamber, the piston rod is fixedly connected to the adjusting piston, and the end of the piston rod away from the piston extends out to the outside of the tension adjustment chamber and is fixedly connected to a guide wheel bracket, wherein a guide wheel is rotatably disposed on the guide wheel bracket.

[0006] The principle and advantages of this scheme are: when used for wire drawing and take-up, the wire first passes through the guide roller and then enters the take-up reel; when used for stranding, the wire coming out of the pay-off reel first passes through the guide roller and then enters the stranding machine.

[0007] Multiple tension adjustment units are used to guide a single strand of conductor. The tension control mechanism adjusts the tension of multiple tension adjustment units simultaneously, ensuring that the tension control degree of each tension adjustment unit is consistent. This guarantees uniform tension when taking in or releasing the conductor on multiple tension adjustment units, making the tension on the conductor by the guide wheel more uniform and consistent.

[0008] After the wires are installed on the device, each wire exerts its tension on the adjusting piston via guide rollers. If the tension of a wire decreases, the pressure of the wire on the guide roller decreases, and the adjusting piston corresponding to that wire moves upward, tightening the wire and increasing the tension. Conversely, if the tension of a wire increases for some reason, the pressure of the wire on the guide roller increases, and the adjusting piston corresponding to that wire moves downward, relaxing the wire and decreasing the tension. This allows for flexible adjustment of the wire tension. Furthermore, because the control chambers of multiple tension adjustment units are interconnected and share a common tension control mechanism, there is a communicating vessel phenomenon among the control chambers. If the pressure in one control chamber changes, it will affect the other control chambers through pressure transmission, causing corresponding pressure changes in the other control chambers, thus stabilizing and unifying the tension of each wire. The tension control mechanism is used to regulate the overall pressure of each control chamber, ensuring uniform wire tension on each guide roller.

[0009] Preferably, as an improvement, the tension control mechanism includes a main cylinder body, in which a control piston is slidably fitted with a clearance fit. The control piston divides the interior of the main cylinder body into a connecting chamber and a main control chamber. Multiple control chambers are simultaneously connected to the connecting chamber, which is filled with a pressure regulating medium. A spring pressure plate is slidably installed in the main control chamber, and a tension spring is installed between the spring pressure plate and the control piston. A sliding drive component is connected to the spring pressure plate.

[0010] Through the above scheme, the main cylinder is used to control the pressure of each control chamber, keeping the pressure in each control chamber within a suitable range and preventing the tension of the wires from being too high or too low. By controlling the position of the spring pressure plate through the sliding drive, the position of the control piston can be changed, thereby adjusting the pressure in the connecting chamber to ensure the consistency of the tension on the wires by each group of tension adjustment units, so that the tension on each wire is uniform.

[0011] Preferably, as an improvement, the sliding drive component is a cylinder, and the drive shaft of the cylinder is fixed on the spring pressure plate.

[0012] The above scheme uses a cylinder to drive the spring pressure plate to move, resulting in a simple structure that is easy to control.

[0013] Preferably, as an improvement, the sliding drive component is a bolt, and a threaded hole is provided on the side wall of the main control chamber. The bolt passes through the threaded hole and is threadedly connected to the threaded hole. One end of the bolt located inside the main control chamber is rotatably connected to the spring pressure plate.

[0014] The above solution uses bolts to move and adjust the spring pressure plate. Its structure is simple and easy to adjust. Compared with the cylinder adjustment method, the adjustment accuracy is higher and it does not require a larger space configuration structure, which is conducive to the simplification and integration of equipment.

[0015] Preferably, as an improvement, the two ends of the tension spring are fixed to the control piston and the spring pressure plate, respectively.

[0016] With the above solution, both ends of the spring are fixedly connected, making the spring more stable under force.

[0017] Preferably, as an improvement, the pressure regulating medium is hydraulic oil or compressed air.

[0018] The above scheme uses hydraulic oil or compressed air as a pressure regulating medium, which is conducive to the uniform transmission of pressure, thereby ensuring the uniformity and consistency of the tension of each group of conductors.

[0019] Preferably, as an improvement, the guide wheel has an annular groove on its circumference, and the center of the groove coincides with the center of the guide wheel.

[0020] The above solution allows the groove to limit the wire's position, thereby ensuring the guide wheel effectively guides the wire and preventing the wire from slipping off the guide wheel. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the process of reeling in the wire.

[0022] Figure 2 This is a schematic diagram of the line laying process.

[0023] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0024] Figure 4 for Figure 3 The diagram shows a partially enlarged view of the guide wheel.

[0025] The reference numerals in the accompanying drawings include: tension adjustment unit 1, piston cylinder 2, adjusting piston 3, tension adjustment chamber 4, control chamber 5, piston rod 6, guide wheel bracket 7, guide wheel 8, groove 9, main cylinder body 10, control piston 11, connecting chamber 12, main control chamber 13, spring pressure plate 14, tension spring 15, bolt 16, wire 17, take-up reel 18, and pay-off reel 19. Detailed Implementation

[0026] The following detailed description provides further details on specific embodiments, but the embodiments of this utility model are not limited thereto. Unless otherwise specified, the technical means used in the following embodiments are conventional means well known to those skilled in the art; the experimental methods used are all conventional methods; and the materials and reagents used are all commercially available.

[0027] Example 1

[0028] A multi-strand wire harness tension equalization device, such as Figure 3 As shown, the device includes multiple tension adjustment units 1 arranged sequentially. Each tension adjustment unit 1 includes a piston cylinder 2. An adjusting piston 3 is slidably mounted within the piston cylinder 2 with a clearance fit. The adjusting piston 3 divides the interior of the piston cylinder 2 into a tension adjustment chamber 4 and a control chamber 5. A piston rod 6 is located within the tension adjustment chamber 4. The piston rod 6 is fixedly connected to the adjusting piston 3, and one end of the piston rod 6, away from the piston, extends out of the tension adjustment chamber 4 and is fixedly connected to a guide wheel bracket 7. A guide wheel 8 is rotatably mounted on the guide wheel bracket 7. (Combined with...) Figure 4 As shown, the guide wheel 8 has an annular groove 9 on its circumference, and the center of the groove 9 coincides with the center of the guide wheel 8.

[0029] Multiple tension adjustment units 1 have interconnected control chambers 5, all connected to a common tension control mechanism. The tension control mechanism includes a main cylinder 10, within which a control piston 11 is slidably mounted with a clearance fit. The control piston 11 divides the interior of the main cylinder 10 into a connecting chamber 12 and a main control chamber 13. Multiple control chambers 5 are simultaneously connected to the connecting chamber 12, which is filled with a pressure regulating medium, either hydraulic oil or compressed air. In this embodiment, hydraulic oil is used as the pressure regulating medium for specific implementation. A spring pressure plate 14 is slidably mounted within the main control chamber 13. A tension spring 15 is positioned between the spring pressure plate 14 and the control piston 11. A sliding drive component is connected to the spring pressure plate 14. In this embodiment, the sliding drive component is a cylinder, located outside the main cylinder 10, with its drive shaft extending into the main cylinder 10 and fixed to the spring pressure plate 14. The two ends of the tension spring 15 are respectively fixed to the control piston 11 and the spring pressure plate 14.

[0030] In this embodiment, during winding, multiple strands of wire 17 are passed around guide wheels 8 and connected to the take-up reel 18. During winding, if the tension of one of the wires 17 decreases, the pressure of the wire 17 on the guide wheel 8 decreases, and the adjusting piston 3 corresponding to that wire 17 moves upward, tightening the wire 17 and increasing its tension. Conversely, if the tension of one wire 17 increases for some reason, the pressure of the wire 17 on the guide wheel 8 increases, and the adjusting piston 3 corresponding to that wire 17 moves downward, relaxing the wire 17 and decreasing its tension. This allows for flexible adjustment of the tension of the wires 17, ensuring stable and uniform tension for each wire 17. A cylinder controls the movement of the spring pressure plate 14, adjusting the tension of the tension spring 15, which in turn moves the control piston 11, thus adjusting the tension of each wire 17. In practical applications, to further ensure stable and uniform tension for each wire 17, the dimensions of each piston cylinder 2 and adjusting piston 3 can be designed to be identical, which is more conducive to maintaining stable tension for each wire 17.

[0031] Example 2

[0032] The difference between this embodiment and Embodiment 1 lies in the structure of the sliding drive component. Figure 3 As shown, the sliding drive component in this embodiment is a bolt 16. A threaded hole is provided on the side wall of the main control chamber 13. The bolt 16 passes through the threaded hole and is threadedly connected to the threaded hole. One end of the bolt 16 located in the main control chamber 13 is rotatably connected to the spring pressure plate 14.

[0033] In this embodiment, when it is necessary to apply pressure from the tension adjustment unit 1 to the main cylinder 10, the bolt 16 is rotated. The bolt 16 pushes or pulls the spring pressure plate 14 to move within the main control chamber 13, thereby adjusting the tension of the tension spring 15 and adjusting the tension of each wire 17.

[0034] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A multi-strand wire harness tension equalization device, characterized in that: It includes multiple tension adjustment units arranged in sequence. Each tension adjustment unit includes a piston cylinder. An adjustment piston is slidably mounted inside the piston cylinder with clearance fit. The adjustment piston divides the inside of the piston cylinder into a tension adjustment chamber and a control chamber. The control chambers of the multiple tension adjustment units are interconnected and are all connected to a tension control mechanism. A piston rod is provided in the tension regulating chamber. The piston rod is fixedly connected to the regulating piston, and the end of the piston rod away from the piston extends out to the tension regulating chamber and is fixedly connected to a guide wheel bracket. A guide wheel is rotatably mounted on the guide wheel bracket.

2. The multi-strand wire harness tension equalization device according to claim 1, characterized in that: The tension control mechanism includes a main cylinder body, within which a control piston is slidably fitted with a clearance fit. The control piston divides the interior of the main cylinder body into a connecting chamber and a main control chamber. Multiple control chambers are simultaneously connected to the connecting chamber, which is filled with a pressure regulating medium. A spring pressure plate is slidably installed in the main control chamber, with a tension spring between the spring pressure plate and the control piston. A sliding drive component is connected to the spring pressure plate.

3. The multi-strand wire harness tension equalization device according to claim 2, characterized in that: The sliding drive component is a cylinder, and the cylinder's drive shaft is fixed to the spring pressure plate.

4. The multi-strand wire harness tension equalization device according to claim 2, characterized in that: The sliding drive component is a bolt. The side wall of the control room has a threaded hole. The bolt passes through the threaded hole and is threadedly connected to the threaded hole. One end of the bolt located inside the control room is rotatably connected to the spring pressure plate.

5. A multi-strand wire harness tension equalization device according to claim 3 or 4, characterized in that: The two ends of the tension spring are fixed to the control piston and the spring pressure plate, respectively.

6. The multi-strand wire harness tension equalization device according to claim 5, characterized in that: The pressure regulating medium is hydraulic oil or compressed air.

7. A multi-strand wire harness tension equalization device according to claim 6, characterized in that: The guide wheel has an annular groove on its circumference, and the center of the groove coincides with the center of the guide wheel.

Images