A wire twisting device

Abstract

The utility model belongs to cable production technical field, concretely relates to a wire twisting device, include: counterweight, wire, fixed pulley, operation bench, hook, guide rod, one end of operation bench is fixed with two fixed pulleys, and the other end sets up fixed bolster, is used for supporting guide rod, guide rod passes through fixed bolster, and one end of guide rod is operation end, and the other end of guide rod is provided with hook, the midpoint of wire is fixed on hook, and wire both ends are respectively hung up counterweight after passing through fixed pulley and present vertical state, and rotating guide rod forces two sections of wire along midpoint even distribution to be twisted and to be formed according to the required number of twists, the device of utility model design can effectively guarantee wire torsion quality, and wire voltage resistance test result is more accurate and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of cable manufacturing technology, and specifically relates to a wire twisting device. Background Technology

[0002] After cable production or use, it needs to be wound and stored. Storing large quantities of cables directly in segments would occupy a significant amount of storage space. Currently, the method involves suspending weights at both free ends of the cable and manually winding the two wires together. This method subjects the wound sample to varying degrees of force during manual winding, easily resulting in one wire wrapping around the other. It also easily scratches the wire surface during winding, and the winding length is difficult to control, often leading to unqualified samples. Twisted samples are used to test the voltage withstand capability of the wires. Manual winding increases the actual force on the wires, causing a voltage drop during the withstand voltage test. One wire wrapped around another increases the conductor's cross-sectional area, also lowering the voltage. Scratches on the wire surface during winding can be misinterpreted as wire breakdown during testing, resulting in inaccurate values. Furthermore, poor control of the winding length, often deviating from the standard requirements, makes it impossible to judge compliance based on standard specifications. Longer samples result in lower withstand voltage values, while shorter samples increase them. In actual measurement and result judgment, certain standards are used to determine whether the conductor meets the requirements. However, the above phenomena may lead to unreliable test results and misjudgment of the results. Utility Model Content

[0003] The technical problem solved by this utility model is to address the issue of inaccurate cable withstand voltage test results due to substandard cable winding in traditional methods. A conductor preparation device is designed to solve this problem.

[0004] The present invention provides a wire twisting device to achieve the aforementioned objectives. The device includes a counterweight, a wire, fixed pulleys, an operating platform, a hook, and a guide rod. Two fixed pulleys are fixed at one end of the operating platform, and a fixed bracket is provided at the other end to support the guide rod. The guide rod passes through the fixed bracket, with one end serving as the operating end and the other end having a hook. The midpoint of the wire is fixed to the hook, and both ends of the wire are suspended by the counterweight in a vertical position after passing through the fixed pulleys. Rotating the guide rod forces the two sections of wire, evenly divided along the midpoint, to be twisted to the required number of twists.

[0005] Furthermore, two fixed pulleys are mounted on the same rotating shaft, which is fixed to the end of the operating table.

[0006] Furthermore, the rotating shaft is fixed to the end of the operating table by a support plate.

[0007] Furthermore, the counterweight is a quantitative weight.

[0008] Furthermore, a stirring handle is fixed to the operating end of the guide rod.

[0009] Furthermore, the fixed bracket is a control box, and the control box is provided with a limit mechanism to restrict the axial movement of the guide rod during rotation.

[0010] Furthermore, the number of turns is determined by the distance between the hook at the end of the guide rod and the fixed pulley.

[0011] Advantages and beneficial effects:

[0012] 1. Economic Benefits: Comparing the quality of the samples and test results before and after the improvement, the repeatability and reproducibility of the improved test are guaranteed. Analysis of the test results shows that the improved test results are more reliable and accurate. This invention ensures more accurate results in conductor withstand voltage tests, facilitating its promotion and use.

[0013] 2. Social benefits: The improvement has increased the accuracy and reliability of the experimental data. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Among them, 1-weight; 2-wire; 3-fixed pulley; 4-operating table; 5-hook; 6-guide rod; 7-stirring handle. Detailed Implementation

[0016] The features and illustrative embodiments of various aspects of this utility model will now be described in detail. In the following detailed description, numerous specific details are set forth in order to provide a comprehensive understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of this utility model by illustrating examples of it. This utility model is by no means limited to any specific arrangements and methods set forth below, but covers any improvements, substitutions, and modifications to the structure, method, and apparatus without departing from the spirit of this utility model. In the accompanying drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring this utility model.

[0017] It should be noted that, where there is no conflict, the embodiments of this utility model and the features therein can be combined with each other, and the various embodiments can be referenced and cited in turn. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] This invention aims to ensure that the test results of the conductor during the withstand voltage test more accurately reflect the electrical performance of the conductor, providing a reliable basis for the conductor's re-inspection upon entering the factory, product research and development, production and application. At the same time, it reduces human error caused by different testers preparing samples during sample preparation, and the reproducibility of the test better determines the reliability of the test values.

[0019] See appendix Figure 1 This utility model specifically designs a wire twisting device, the device comprising: a weight 1, a wire 2, a fixed pulley 3, an operating table 4, a hook 5, a guide rod 6, and a stirring handle 7; one end of the operating table 4 is fixed with two fixed pulleys 3, and the other end is provided with a fixed bracket for supporting the guide rod 6. The guide rod 6 passes through the fixed bracket, one end of the guide rod is the operating end and is fixed with the stirring handle 7, and the other end of the guide rod 6 is provided with a hook 5; the midpoint of one end of the wire 2 is fixed to the hook 5, and the two ends of the wire 2 are respectively suspended by the fixed pulleys 3 and are in a free-falling state under the action of gravity. Rotating the stirring handle 7 forces the two ends of the wire 2 to be twisted into shape according to the required number of twists.

[0020] 1. Sample (wire 2): Based on commonly used standards and wires, select different weights 1 and the number of twists of the wire. However, the winding length remains the same. In the specific implementation process, it can be determined by the distance between the two fixed pulleys and the distance between the hook and the line connecting the fixed pulleys.

[0021] 2. Fixture Design: The distance between the hook and the pulley in the fixed fixture is used to ensure the effective length of the sample twist. The distance between the hook and the pulley was finally determined through theory and continuous practice. Based on the principle that the pulley can change the direction of the force without changing the magnitude of the force, two fixed pulleys are installed on the fixture to change the direction of the force on the two free ends of the wire respectively. The other end of the hook is connected to a handle. It is easier to obtain an ideal sample if the handle rotates at the same speed. The number of rotations is the number of twists of the wire. The number of twists of the sample produced in this way is more accurate.

[0022] 3. Tooling Material Selection: Considering the daily use of the wires and the stress conditions, and ensuring that the external dimensions and accuracy do not change under long-term use, the pulleys, the support columns supporting the pulleys, and the hooks are all made of aluminum alloy; the handles and the guide rods connected to the hooks are made of stainless steel, and non-metallic materials are added to the handles to prevent corrosion.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should be covered within the protection scope of this utility model.

Claims

1. A wire twisting device, characterized in that, The device includes: a counterweight, a wire, fixed pulleys, an operating table, a hook, and a guide rod; one end of the operating table is fixed with two fixed pulleys, and the other end is provided with a fixed bracket to support the guide rod. The guide rod passes through the fixed bracket, one end of the guide rod is the operating end, and the other end of the guide rod is provided with a hook; the midpoint of the wire is fixed to the hook, and the two ends of the wire are respectively suspended by the fixed pulleys and the counterweight is in a vertical state. Rotating the guide rod forces the two segments of the wire, which are evenly divided along the midpoint, to be wound into shape according to the required number of twists.

2. The wire twisting device as described in claim 1, characterized in that, Two fixed pulleys are mounted on the same rotating shaft, which is fixed to the end of the operating table.

3. The wire twisting device as described in claim 2, characterized in that, The rotating shaft is fixed to the end of the operating table by a support plate.

4. The wire twisting device as described in claim 1, characterized in that, The counterweight is a fixed weight.

5. A wire twisting device as described in claim 1, characterized in that, A stirring handle is fixed to the operating end of the guide rod.

6. The wire twisting device as described in claim 1, characterized in that, The fixed bracket is a control box, and the control box is equipped with a limit mechanism to restrict the axial movement of the guide rod during rotation.

7. A wire twisting device as described in claim 1, characterized in that, The number of turns is determined by the distance between the hook at the end of the guide rod and the fixed pulley, as well as the distance between the two fixed pulleys.

Images