Wire traction device

Abstract

The utility model relates to a wire traction device which comprises a traction head, a traction tube and a wire fixing structure, the traction tube comprises a reducing part and a main body part, the traction head is arranged at the front end of the reducing part, and the main body part is arranged at the rear end of the reducing part. The wire fixing structure for connecting the end part of the core wire group and the traction tube is arranged at the rear end of the main body part; the wire rod fixing structure comprises an accommodating cavity which is arranged at the rear end of the main body part and is used for the insertion of the end part of the core wire group, a screw hole which is arranged on the cavity wall of the accommodating cavity, and a fixing screw which is matched with the screw hole. Or the wire fixing structure comprises a plurality of elastic sheets and a fixing nut, the elastic sheets are arranged at the rear end of the main body part and are provided with external threads, the elastic sheets surround to form an accommodating cavity for the end part of the core wire group to insert, and the fixing nut is provided with internal threads. According to the utility model, the operation efficiency of penetrating the core wire into the woven mesh pipe can be improved, the required working hours are reduced, and the core wire can smoothly penetrate into the woven mesh pipe.

Description

Technical Field

[0001] The utility model relates to a device for pulling wires through a braided mesh tube. Background Art

[0002] When manufacturing certain products using cored wires, a cored wire assembly (i.e., multiple cored wires) needs to be threaded through a braided mesh tube. However, bare cored wires can easily get stuck when threading through the braided mesh tube, resulting in problems such as uneven threading and lengthy threading times. Summary of the Invention

[0003] The utility model aims to provide a wire pulling device which can realize smooth penetration of a core wire into a braided mesh tube, improve the efficiency of the wire threading operation, and reduce the working hours of the wire threading operation.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A wire pulling device for pulling a core wire group through a braided mesh tube, the wire pulling device comprising a pulling head, a pulling tube, and a wire fixing structure, the pulling tube comprising a reducing portion and a main body, the pulling head being arranged at the front end of the reducing portion, the main body being arranged at the rear end of the reducing portion, the outer diameter of the reducing portion gradually transitioning from matching the outer diameter of the pulling head to matching the outer diameter of the main body, the wire fixing structure for connecting the end of the core wire group with the pulling tube being arranged at the rear end of the main body;

[0006] The wire fixing structure includes an accommodating cavity opened at the rear end of the main body and used for inserting the end of the core wire group, a screw hole opened on the cavity wall of the accommodating cavity, and a fixing screw matching the screw hole. When the end of the core wire group is inserted into the accommodating cavity, the fixing screw is screwed into the screw hole and pressed against the side of the core wire group.

[0007] The traction head is a hemispherical ball head embedded in the front end of the diameter-changing part.

[0008] The main body is cylindrical.

[0009] The accommodating cavity includes a first cavity for inserting the ends of part of the core wire group and a second cavity for inserting the ends of all the core wire groups. The first cavity is arranged at the front end of the second cavity, and the screw hole is opened on the cavity wall of the first cavity.

[0010] An observation hole for observing whether a portion of the core wire group is inserted into the first cavity is also provided on the cavity wall of the first cavity.

[0011] A groove is provided on the outer surface of the main body portion, and the screw hole is provided in the groove.

[0012] In order to achieve the above object, another technical solution adopted by the utility model is:

[0013] A wire pulling device for pulling a core wire group through a braided mesh tube, the wire pulling device comprising a pulling head, a pulling tube, and a wire fixing structure, the pulling tube comprising a reducing portion and a main body, the pulling head being arranged at the front end of the reducing portion, the main body being arranged at the rear end of the reducing portion, the outer diameter of the reducing portion gradually transitioning from matching the outer diameter of the pulling head to matching the outer diameter of the main body, the wire fixing structure for connecting the end of the core wire group with the pulling tube being arranged at the rear end of the main body;

[0014] The wire fixing structure includes multiple spring pieces and a fixing nut. The spring piece is arranged at the rear end of the main body and is provided with an external thread. The spring piece is surrounded to form an accommodating cavity for inserting the end of the core wire group. The fixing nut is provided with an internal thread. When the end of the core wire group is inserted into the accommodating cavity, the fixing nut is tightened on the outside of the spring piece to make the spring piece tighten the core wire group.

[0015] The traction head is a hemispherical ball head embedded in the front end of the diameter-changing part.

[0016] The main body is cylindrical.

[0017] Anti-slip lines are provided on the outer side wall of the nut.

[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the existing technology: the utility model can improve the working efficiency of the core wire passing through the braided mesh tube, reduce the required working hours, and realize the smooth penetration of the core wire into the braided mesh tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attachment Figure 1 It is a three-dimensional schematic diagram of embodiment 1 of the present utility model.

[0020] Attachment Figure 2 This is an exploded view of the first embodiment of the present invention.

[0021] Attachment Figure 3 This is a structural cross-sectional view of embodiment 1 of the present utility model.

[0022] Attachment Figure 4 It is a three-dimensional schematic diagram of the second embodiment of the present utility model.

[0023] Attachment Figure 5 This is an exploded view of the second embodiment of the present invention.

[0024] Attachment Figure 6 This is a structural cross-sectional view of embodiment 2 of the present utility model.

[0025] In the above figures: 1. traction head; 2. traction tube; 3. wire fixing structure; 4. diameter-changing part; 5. main body; 6. accommodating chamber; 7. screw hole; 8. fixing screw; 9. first chamber; 10. second chamber; 11. observation hole; 12. spring; 13. fixing nut; 14. core wire group; 15. tape. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0027] Example 1: As shown in the attached Figure 1 To the attached Figure 3 As shown, a wire pulling device for pulling a core wire group 14 composed of multiple core wires through a braided mesh tube includes a pulling head 1, a pulling tube 2 and a wire fixing structure 3.

[0028] The traction tube 2 includes a reducing section 4 and a main section 5. The reducing section 4 forms the front end of the traction tube 2, while the main section 5 forms the rear end. The traction head 1 is located at the front end of the reducing section 4, while the main section 5 is located at the rear end. The outer diameter of the reducing section 4 gradually transitions from matching the outer diameter of the traction head 1 to matching the outer diameter of the main section 5. A wire securing structure 3 is located at the rear end of the main section of the traction tube 2 and is used to connect the ends of the core wire assembly 14 to the main section of the traction tube 2.

[0029] Specifically, the traction head 1 is a hemispherical ball head embedded in the front end of the reducing section 4. The outer diameter of the reducing section 4 of the traction tube 2 gradually changes along its axial direction, forming a smoothly transitional curved surface on its outer circumference. Preferably, the reducing section 4 has a bell-shaped shape. The main body 5 of the traction tube 2 is cylindrical.

[0030] The wire fixing structure 3 includes a accommodating cavity 6, a screw hole 8 and a fixing screw 8. The accommodating cavity 6 is opened at the rear end of the main body 5 of the traction tube 2, and is opened axially forward from the rear end face of the main body 5 to form a blind hole structure. The accommodating cavity 6 is used for inserting the end of the core wire group 14. The screw hole 8 is opened on the cavity wall of the accommodating cavity 6, and the axial direction of the screw hole 8 is arranged along the radial direction of the main body 5, and the fixing screw 8 can cooperate with the screw hole 8 and be screwed in or out of the screw hole 8 along the radial direction of the main body 5. A groove can be opened on the outer surface of the main body 5, and the screw hole 8 is opened in the groove. The bottom surface of the groove is flat, or a countersunk hole for the head of the fixing screw 8 to sink into is opened on the bottom surface of the groove. When the end of the core wire group 14 is inserted into the accommodating cavity 6, the fixing screw 8 is screwed into the screw hole 8 and pressed against the side of the core wire group 14, thereby fixing the core wire group 14. The core wire assembly 14 is pre-processed, and multiple core wires (e.g., 8 or 16 pairs of core wires) are wrapped around the outer periphery with adhesive tape 15 to form a bundle of core wires 14. The core wire assembly 14 is inserted into the accommodating cavity 6 and firmly fixed with the fixing screws 8.

[0031] Furthermore, the accommodating chamber 6 adopts a segmented structure, namely, the accommodating chamber 6 includes a first chamber 9 and a second chamber 10. The first chamber 9 is located at the front end of the second chamber 10. The first chamber 9 has a smaller inner diameter, which can only accommodate the ends of a portion of the core wire assembly 14, for example, a single core wire. The second chamber 10 has a larger inner diameter, which can accommodate the ends of the entire core wire assembly 14. Furthermore, a screw hole 8 is provided on the wall of the first chamber 9. During pre-processing of the core wire assembly 14, a long core wire is reserved so that the end of the long core wire protrudes from the ends of the other core wires. All the core wires are then wrapped with adhesive tape 15 and inserted into the accommodating chamber 6, allowing the long core wire to be inserted into the first chamber 9 while the other core wires are inserted into the second chamber 10. Fixing screws 8 are then used to tighten the side of the long core wire, thereby securing the entire core wire assembly 14. An observation hole 11 can also be provided on the wall of the first chamber 9 to observe whether the core wire assembly 14 is partially inserted into the first chamber 9. The observation hole 11 can be opened on the opposite side of the screw hole 8 .

[0032] After fixing the core wire group 14 to the above-mentioned wire traction device, the threading operation can be carried out. The ball head is inserted into the mouth of the braided mesh tube, so that the braided mesh tube slides smoothly from the outer periphery of the traction tube 2 body to the core wire group 14 without getting stuck, thereby shortening the threading time.

[0033] Example 2: As shown in the attached Figure 4 To the attached Figure 6As shown, the wire pulling device in this embodiment differs from the first embodiment in the wire securing structure 3, specifically as follows: the wire securing structure 3 comprises multiple spring clips 12 and a fixing nut 13. Each spring clip 12 is disposed at the rear end of the main body 5. One end of each spring clip 12 is fixedly connected to the main body 5, extending axially along the main body 5, and the other end of each spring clip 12 is free. Each spring clip 12 is distributed along the periphery of the main body 5, thereby surrounding and forming a receiving cavity 6 for inserting the end of the core wire assembly 14. Each spring clip 12 is provided with external threads. The fixing nut 13 is provided with internal threads that fit over the exterior of each spring clip 12 and form a threaded engagement. The outer wall of the nut may also be provided with anti-slip grooves to facilitate rotation. After the end of the core wire assembly 14, which has been pre-treated and secured with tape 15, is inserted into the receiving cavity 6, the fixing nut 13 is tightened onto the outside of the spring clip 12, securing the core wire assembly 14, allowing threading to proceed.

[0034] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A wire pulling device for pulling a core wire group through a braided mesh tube, characterized by: The wire pulling device includes a pulling head, a pulling tube and a wire fixing structure. The pulling tube includes a reducing portion and a main body portion. The pulling head is arranged at the front end of the reducing portion, and the main body portion is arranged at the rear end of the reducing portion. The outer diameter of the reducing portion gradually transitions from matching the outer diameter of the pulling head to matching the outer diameter of the main body portion. The wire fixing structure for connecting the end of the core wire group and the pulling tube is arranged at the rear end of the main body portion. The wire fixing structure includes an accommodating cavity opened at the rear end of the main body and used for inserting the end of the core wire group, a screw hole opened on the cavity wall of the accommodating cavity, and a fixing screw matching the screw hole. When the end of the core wire group is inserted into the accommodating cavity, the fixing screw is screwed into the screw hole and pressed against the side of the core wire group.

2. The wire pulling device according to claim 1, characterized in that: The traction head is a hemispherical ball head embedded in the front end of the diameter-changing part.

3. The wire pulling device according to claim 1, characterized in that: The main body is cylindrical.

4. The wire pulling device according to claim 1, characterized in that: The accommodating cavity includes a first cavity for inserting the ends of part of the core wire group and a second cavity for inserting the ends of all the core wire groups. The first cavity is arranged at the front end of the second cavity, and the screw hole is opened on the cavity wall of the first cavity.

5. The wire pulling device according to claim 4, characterized in that: An observation hole for observing whether a portion of the core wire group is inserted into the first cavity is also provided on the cavity wall of the first cavity.

6. The wire pulling device according to claim 1, characterized in that: A groove is provided on the outer surface of the main body portion, and the screw hole is provided in the groove.

7. A wire pulling device for pulling a core wire group through a braided mesh tube, characterized in that: The wire pulling device includes a pulling head, a pulling tube and a wire fixing structure. The pulling tube includes a reducing portion and a main body portion. The pulling head is arranged at the front end of the reducing portion, and the main body portion is arranged at the rear end of the reducing portion. The outer diameter of the reducing portion gradually transitions from matching the outer diameter of the pulling head to matching the outer diameter of the main body portion. The wire fixing structure for connecting the end of the core wire group and the pulling tube is arranged at the rear end of the main body portion. The wire fixing structure includes multiple spring pieces and a fixing nut. The spring piece is arranged at the rear end of the main body and is provided with an external thread. The spring piece is surrounded to form an accommodating cavity for inserting the end of the core wire group. The fixing nut is provided with an internal thread. When the end of the core wire group is inserted into the accommodating cavity, the fixing nut is tightened on the outside of the spring piece to make the spring piece tighten the core wire group.

8. The wire pulling device according to claim 7, characterized in that: The traction head is a hemispherical ball head embedded in the front end of the diameter-changing part.

9. The wire pulling device according to claim 7, characterized in that: The main body is cylindrical.

10. The wire pulling device according to claim 7, characterized in that: Anti-slip lines are provided on the outer side wall of the nut.

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