Dismounting tool for cam shaft in wire arranging arm of wire drawing machine

By designing and installing disassembly tools with sleeves and snap-fit ​​components, the problems of time-consuming, labor-intensive, and easily damaged camshaft disassembly in existing technologies have been solved, enabling fast and safe disassembly of camshafts and efficient replacement of bearings.

CN224169724UActive Publication Date: 2026-04-28CHONGQING POLYCOMP INT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING POLYCOMP INT
Filing Date
2025-05-22
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The disassembly of the camshaft inside the wire drawing machine's wire drawing arm is time-consuming, labor-intensive, and prone to damage, making it difficult to efficiently replace the bearings.

Method used

A disassembly tool comprising an installation sleeve, an ejector, and a snap-fit ​​component was designed. By fitting the sleeve onto the cable arm bearing seat and utilizing the coordinated operation of the ejector and snap-fit ​​component, the camshaft can be quickly ejected and stably fixed, thus avoiding damage.

Benefits of technology

It simplifies the camshaft disassembly process, improves bearing replacement efficiency, protects the integrity of the camshaft, and is simple and efficient to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

A disassembling tool for a cam shaft in a wire arranging arm of a wire drawing machine relates to the technical field of wire drawing machines and comprises a mounting sleeve, a cam shaft and a cam shaft, the ejection piece freely penetrates through the mounting sleeve and is movably connected with the mounting sleeve, and the ejection piece moves in the axial direction of the mounting sleeve; the clamping piece is rotationally mounted on the side wall of the mounting sleeve, and the clamping piece is used for being rotationally clamped with the wire arranging arm; the mounting sleeve is sleeved on the bearing seat at one end of the winding displacement arm, the clamping piece is rotated to be clamped with the winding displacement arm so as to fix the mounting sleeve, then the ejection piece is operated to move towards the inside of the winding displacement arm and abut against one end of the cam shaft, and the ejection piece is continuously operated until the cam shaft is ejected out of the winding displacement arm. Then the bearings at the two ends of the cam shaft are checked, maintained or replaced; the device is simple and convenient to operate, can quickly take out the cam shaft, improves the replacement efficiency of the bearing, and can also ensure that the cam shaft is not damaged.
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Description

Technical Field

[0001] This utility model relates to the field of wire drawing machine technology, specifically to a tool for disassembling the inner camshaft of the wire drawing machine's wire drawing arm. Background Technology

[0002] The wire drawing arm is a core component of the wire drawing machine, mainly used to control the uniform distribution and winding management of wires (such as metal wires, plastic wires, etc.).

[0003] like Figure 1 As shown, the existing wire drawing machine has a wire drawing arm 1 with a camshaft 2 installed inside it, which rotates along its axis. Bearings are installed at both ends of the camshaft 2 to ensure the stability and smoothness of the rotation of the camshaft 2. However, after long-term use, the bearings often fail, and the camshaft 2 needs to be removed from the wire drawing arm 1 in order to repair or replace the bearings.

[0004] The existing method for removing the camshaft 2 is to insert an iron rod through the bearing seat 11 at one end of the wire drawing arm 1 and press it against the camshaft 2, and then use a hammer to strike the iron rod to remove the camshaft 2. However, since the bearing and the bearing seat 11 on the wire drawing arm 1 are closely fitted, and the wire drawing machine will have a lot of wetting agent residue inside the wire drawing arm 1 during use, it is very time-consuming and laborious to disassemble the camshaft 2, and it is also easy to damage the camshaft 2 and affect the subsequent bearing assembly. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a disassembly tool for the camshaft inside the wire drawing machine's wire drawing arm, so as to solve the problems of time-consuming, laborious and easily damaged camshaft disassembly in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A tool for disassembling the inner camshaft of a wire drawing machine's wire drawing arm, comprising:

[0008] The mounting sleeve is used to fit onto one of the bearing seats of the cable arm;

[0009] An ejector, which freely penetrates and is movably connected to the mounting sleeve, the ejector moving axially along the mounting sleeve; and

[0010] A snap-fit ​​component, rotatably mounted on the side wall of the mounting sleeve, is used to rotatably engage with the cable arm.

[0011] Compared with the prior art, this utility model has the following advantages: In use, the mounting sleeve is placed on the bearing seat at one end of the cable arm, and the locking piece is rotated to lock with the cable arm to fix the mounting sleeve. Then, the ejector is operated to move it into the cable arm and abut against one end of the camshaft. The ejector is operated continuously until the camshaft is ejected from the cable arm. Then, the bearings at both ends of the camshaft can be inspected, repaired, or replaced. The operation is simple and convenient, and the camshaft can be quickly removed, improving the efficiency of bearing replacement and ensuring that the camshaft is not damaged.

[0012] Preferably, an internally threaded tube is coaxially fixedly installed on the outer wall of the bottom of the mounting sleeve, and the ejector includes a screw rod that coaxially passes through the internally threaded tube and the mounting sleeve, the screw rod being threadedly connected to the internally threaded tube.

[0013] Preferably, the side wall of the cable arm has a strip-shaped hole along its axial direction. The snap-fit ​​component includes two brackets fixedly mounted on the side wall of the mounting sleeve in opposite directions along the axial direction of the mounting sleeve, and a hook rotatably mounted between the two brackets. The hook is used to rotatably snap-fit ​​with the side wall of the strip-shaped hole. A locking component is provided between the hook and the two brackets to fix the snap-fit ​​state of the hook.

[0014] Preferably, the hook includes a connecting section and a hook-connecting section fixedly connected thereto. The connecting section has a rotating hole at one end away from the hook-connecting section, and a limiting hole is provided in the middle of the connecting section. The connecting section is rotatably connected to the two brackets through a rotating shaft that is fixedly inserted through the rotating hole. The locking member cooperates with the limiting hole to fix the hook in a snap-fit ​​state.

[0015] Preferably, the locking component includes a locking bolt that freely passes through both supports, and the locking bolt is used to freely pass through the limiting hole and then be threadedly connected to the nut to achieve locking.

[0016] Preferably, a top cone is coaxially fixedly mounted on one end of the screw that passes through the mounting sleeve.

[0017] Preferably, the side wall of the mounting sleeve is provided with a clearance notch along its axial direction, and the two brackets are respectively located on both sides of the clearance notch, which is located on the rotation trajectory of the hook.

[0018] Preferably, the sidewall of the mounting sleeve has several observation ports facing each other.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the existing wire drawing machine's wire-laying arm.

[0021] Figure 2 This is a schematic diagram of the structure of one embodiment of the present invention.

[0022] Figure 3 for Figure 2 A schematic diagram of the middle hook structure.

[0023] Figure 4 This is an assembly diagram of one embodiment of the present invention.

[0024] The numbers in the diagram are as follows: 1. Cable arm; 11. Bearing housing; 12. Strip hole; 2. Camshaft; 3. Mounting sleeve; 31. Internal threaded tube; 32. Clearance notch; 33. Observation port; 4. Bracket; 41. Rotating shaft; 42. Locking bolt; 5. Hook; 51. Rotating hole; 52. Limiting hole; 6. Screw; 61. Top cone. Detailed Implementation

[0025] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments:

[0026] like Figure 2 as well as Figure 4 As shown, an embodiment of this utility model provides a disassembly tool for the inner camshaft of a wire drawing machine's wire drawing arm, comprising: an installation sleeve 3, which is used to fit onto one of the bearing seats 11 of the wire drawing arm 1; an ejector, which freely passes through the installation sleeve 3 and is movably connected to the installation sleeve 3, the ejector moving along the axial direction of the installation sleeve 3; and a snap-fit, which is rotatably mounted on the side wall of the installation sleeve 3, the snap-fit ​​being used to rotatably snap-fit ​​with the wire drawing arm 1.

[0027] Place the mounting sleeve 3 onto the bearing seat 11 at one end of the cable arm 1, and rotate the locking piece to engage with the cable arm 1 to fix the mounting sleeve 3. Then operate the ejector to move it into the cable arm 1 and abut against one end of the camshaft 2. Continue operating the ejector until the camshaft 2 is ejected from the cable arm 1. Then inspect, repair or replace the bearings at both ends of the camshaft 2. The operation is simple and convenient, and the camshaft 2 can be removed quickly, which improves the efficiency of bearing replacement and ensures that the camshaft 2 is not damaged.

[0028] like Figure 2As shown, according to another embodiment of the present invention, the disassembly tool for the inner camshaft of the wire drawing machine's cable-laying arm is further optimized in terms of its ejector component. An internally threaded tube 31 is coaxially fixedly installed on the outer wall of the bottom of the mounting sleeve 3. The ejector component includes a screw 6 that coaxially passes through the internally threaded tube 31 and the mounting sleeve 3. The screw 6 is threadedly connected to the internally threaded tube 31. Rotating the screw 6 causes it to move along the axial direction of the mounting sleeve 3, thereby ejecting the camshaft 2 from the cable-laying arm 1. During operation, in order to improve efficiency, an electric wrench is generally used to rotate the screw 6.

[0029] like Figure 2-4 As shown, according to another embodiment of the present invention, the disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm further optimizes the locking component. The wire drawing arm 1 has a strip-shaped hole 12 opened along its axial direction on its side wall. The snap-fit ​​component includes two brackets 4 fixedly installed opposite each other on its side wall along the axial direction of the mounting sleeve 3, and a hook 5 rotatably installed between the two brackets 4. The hook 5 is used to rotatably snap-fit ​​with the side wall of the strip-shaped hole 12. A locking component is provided between the hook 5 and the two brackets 4 to fix the snap-fit ​​state of the hook 5.

[0030] Preferably, the hook 5 includes a connecting section and a hooking section fixedly connected thereto. The connecting section has a rotating hole 51 at one end away from the hooking section, and a limiting hole 52 in the middle of the connecting section. The connecting section is rotatably connected to the two supports 4 through a rotating shaft 41 that is fixedly inserted through the rotating hole 51. The locking member cooperates with the limiting hole 52 to fix the hook 5 in a snap-fit ​​state. The locking member includes a locking bolt 42 that freely passes through the two supports 4. The locking bolt 42 is used to freely pass through the limiting hole 52 and then be threadedly connected to a nut to achieve locking.

[0031] When assembling the mounting sleeve 3 with the bearing seat 11 of the cable arm 1, the mounting sleeve 3 is placed on the bearing seat 11, and then the hook 5 is rotated to engage with the side wall of the strip hole 12. Then the locking bolt 42 is installed so that it can freely pass through the limiting hole 52 and the two brackets 4. Then the locking bolt 42 is engaged with the nut to lock it, thereby fixing the position of the hook 5 to ensure the stable installation of the mounting sleeve 3.

[0032] like Figure 2 As shown, according to another embodiment of the present invention, the disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm is preferably provided with a top cone head 61 coaxially fixedly mounted on one end of the screw 6 that passes through the mounting sleeve 3; the top cone head 61 can effectively reduce the contact area between the screw 6 and the camshaft 2, reduce the wear between the screw 6 and the camshaft 2, and improve the smoothness of the screw 6's rotation.

[0033] like Figure 2As shown, according to another embodiment of the present invention, the disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm is preferably provided with a clearance notch 32 along its axial direction on the side wall of the mounting sleeve 3, and the two brackets 4 are respectively located on both sides of the clearance notch 32. The clearance notch 32 is located on the rotation trajectory of the hook 5. The clearance notch 32 can ensure that the hook 5 has a larger rotation space and reduce the interference between the hook 5 and the side wall of the mounting sleeve 3.

[0034] like Figure 2 As shown, according to another embodiment of the present invention, the disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm is preferably provided with a plurality of observation ports 33 facing each other on the side wall of the mounting sleeve 3; this facilitates observation of the fitting state between the mounting sleeve 3 and the bearing seat 11.

[0035] The working principle of this utility model is as follows: When using this utility model, first, the installation sleeve 3 is fitted onto the bearing seat 11 at one end of the cable arm 1. Then, the hook 5 is rotated to engage with the side wall of the strip hole 12. Subsequently, the locking bolt 42 is freely inserted through the two brackets 4 and the limiting hole 52 and locked with the nut, thereby fixing the position of the hook 5. Then, the screw 6 is turned by an electric wrench to rotate relative to the internal thread tube 31, causing the screw 6 to move into the cable arm 1 and drive the top cone 61 to abut against one end of the camshaft 2. Continue to rotate the screw 6 until the camshaft 2 is removed from the cable arm 1. Then, the bearings at both ends of the camshaft 2 can be inspected, repaired, or replaced.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tool for disassembling the inner camshaft of a wire drawing machine's wire drawing arm, characterized in that, include: Installation sleeve (3) is used to fit onto one of the bearing seats (11) of the cable arm (1); An ejector, which freely penetrates the mounting sleeve (3) and is movably connected to the mounting sleeve (3), the ejector moving axially along the mounting sleeve (3); and A snap-fit ​​element is rotatably mounted on the side wall of the mounting sleeve (3), the snap-fit ​​element being used to rotatably snap-fit ​​with the cable arm (1).

2. The disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm according to claim 1, characterized in that, An internally threaded tube (31) is coaxially fixedly installed on the outer wall of the bottom of the mounting sleeve (3). The ejector includes a screw (6) that coaxially passes through the internally threaded tube (31) and the mounting sleeve (3). The screw (6) is threadedly connected to the internally threaded tube (31).

3. The disassembly tool for the inner camshaft of a wire drawing machine's wire drawing arm according to claim 1, characterized in that, The cable arm (1) has a strip hole (12) on its side wall along its axial direction. The snap-fit ​​component includes two brackets (4) fixedly mounted on its side wall along the axial direction of the mounting sleeve (3) and a hook (5) rotatably mounted between the two brackets (4). The hook (5) is used to rotatably snap-fit ​​with the side wall of the strip hole (12). A locking component is provided between the hook (5) and the two brackets (4) to fix the snap-fit ​​state of the hook (5).

4. The disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm according to claim 3, characterized in that, The hook (5) includes a connecting section and a hook section fixedly connected thereto. The connecting section has a rotating hole (51) at one end away from the hook section, and a limiting hole (52) is provided in the middle of the connecting section. The connecting section is rotatably connected to the two brackets (4) through a rotating shaft (41) that is fixedly connected through the rotating hole (51). The locking member cooperates with the limiting hole (52) to fix the hook (5) in a snap-fit ​​state.

5. The disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm according to claim 4, characterized in that, The locking component includes a locking bolt (42) that freely passes through the two brackets (4). The locking bolt (42) is used to freely pass through the limiting hole (52) and then be threadedly connected to the nut to achieve locking.

6. The disassembly tool for the inner camshaft of a wire drawing machine's wire drawing arm according to claim 2, characterized in that, A top cone (61) is coaxially fixedly mounted on one end of the screw (6) that passes through the mounting sleeve (3).

7. The disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm according to claim 3, characterized in that, The side wall of the mounting sleeve (3) is provided with a clearance notch (32) along its axial direction. The two brackets (4) are located on both sides of the clearance notch (32). The clearance notch (32) is located on the rotation trajectory of the hook (5).

8. The disassembly tool for the inner camshaft of the wire drawing machine's wire drawing arm according to claim 1, characterized in that, The mounting sleeve (3) has several observation ports (33) facing each other on its side wall.