Steel wire drawing auxiliary device
Patent Information
- Application Number
- CN202522215168.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-20
AI Technical Summary
[0004]本实用新型的目的在于提供一种钢丝拉丝辅助装置，以解决上述背景技术提出的目前钢丝拉丝辅助装置中的导向轮结构刚性固定、无法适应钢丝运行中产生的横向振动，导致钢丝表面擦伤、轮槽磨损不均的问题
[0011]与现有技术相比，本实用新型的有益效果是：该钢丝拉丝辅助装置能够使导向轮具备微幅摆动能力，可被动吸收钢丝振动，减少表面擦伤和轮槽磨损，提升运行平稳性和产品表面质量。该装置通过摆动支架与铰接轴的铰接结构配合扭转弹性件的弹性复位设计，实现了导向轮本体对钢丝振动的自适应响应，无需外部干预即可完成动态缓冲与自动回中，结构紧凑、响应灵敏，显著提高了导向结构的耐久性和维护周期。
Smart Images
Figure CN224808116U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel wire processing technology, specifically to a steel wire drawing auxiliary device. Background Technology
[0002] Wire drawing is a key process that uses dies to gradually thin steel wires to achieve the desired diameter and mechanical properties, and it is widely used in the wire processing industry. During the operation of a wire drawing machine, the steel wire needs to pass through multiple guiding components to guide its path and transmit tension. Auxiliary devices, as an important component, directly affect the smoothness of the wire's movement and the quality of the finished product.
[0003] In most common steel wire drawing auxiliary devices, the guide wheel is fixedly installed with a rigid support. Its structure typically consists of two upright plates with bearing seats on both sides, and the guide wheel shaft fixed at both ends within the bearing seats. While the overall structure is stable, it lacks dynamic adaptability. In actual continuous production, the steel wire generates high-frequency, micro-amplitude vibrations after passing through the drawing die at high speed. This vibration propagates along the wire's axial direction. When passing the fixed guide wheel, the rigid locking of the contact point between the wheel and the wire prevents effective lateral buffering of the vibration. This causes the steel wire to move back and forth slightly on the guide wheel surface, exacerbating uneven wear in the wheel groove and easily forming periodic scratches on the wire surface, affecting the product's surface finish. Utility Model Content
[0004] The purpose of this utility model is to provide a steel wire drawing auxiliary device to solve the problems mentioned in the background art, such as the rigid fixed guide wheel structure of the current steel wire drawing auxiliary device, which cannot adapt to the lateral vibration generated during the operation of the steel wire, resulting in scratches on the surface of the steel wire and uneven wear of the wheel groove.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel wire drawing auxiliary device, comprising a mounting base and a guide wheel body, wherein the two ends of the rotating shaft of the guide wheel body are rotatably mounted in bearing seats, and swing brackets are provided on both sides inside the mounting base, wherein the middle part of the swing bracket is swayably connected to the mounting base via a hinge shaft, the bearing seat is fixed to the inner end of the swing bracket, and a torsional elastic element is connected to the outer end of the swing bracket, wherein the other end of the torsional elastic element is connected to the hinge shaft.
[0006] Preferably, the torsional elastic element is an integrally formed metal elastomer, including a central connecting sleeve, radial spoke rings, and three sets of S-shaped flexible arms evenly distributed in a 120° circumferential direction. The S-shaped flexible arms extend radially and bend in a symmetrical wave shape.
[0007] Preferably, the hinge shaft is a stepped shaft that passes through the side plate of the mounting base. The shoulder of the stepped shaft abuts against one side plate of the mounting base, and the other end is fixed by a locking nut. A radial gap of 0.1-0.3mm is provided between the hinge hole of the swing bracket and the hinge shaft.
[0008] Preferably, the central connecting sleeve is interference-fitted onto the hinge shaft, and the outer edge of the radial spoke ring is provided with an annular connecting boss, which is fixedly connected to the outer end of the swing bracket by screws.
[0009] Preferably, the S-shaped flexible arm has a rectangular cross-section and is formed by wire cutting of high-strength spring steel, and the radial spoke ring and the S-shaped flexible arm are an integral continuous structure.
[0010] Preferably, the swing bracket is provided with guide sliders on both sides, and the guide sliders are slidably embedded in the arc-shaped guide grooves opened on the mounting base.
[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This wire drawing auxiliary device enables the guide wheel to have a micro-oscillation capability, passively absorbing wire vibration, reducing surface scratches and wheel groove wear, and improving operational stability and product surface quality. Through the hinged structure of the swing bracket and the hinge shaft, combined with the elastic reset design of the torsional elastic element, this device achieves an adaptive response of the guide wheel body to wire vibration. Dynamic buffering and automatic centering can be completed without external intervention. The device is compact, responsive, and significantly improves the durability and maintenance cycle of the guide structure. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a steel wire drawing auxiliary device according to the present invention;
[0013] Figure 2 This is a schematic diagram of the inner wall structure of the mounting base of the steel wire drawing auxiliary device of this utility model;
[0014] Figure 3 This is a schematic diagram of the external side view of the guide wheel body of a steel wire drawing auxiliary device according to the present invention.
[0015] In the diagram: 1. Mounting base; 2. Guide wheel body; 3. Bearing seat; 4. Swing bracket; 41. Connecting boss; 5. Hinge shaft; 6. Torsional elastic element; 61. Central connecting sleeve; 62. Radial spoke ring; 63. S-shaped flexible arm; 7. Guide slider; 8. Arc-shaped guide groove. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-3This utility model provides a technical solution: a steel wire drawing auxiliary device, including a mounting base 1 and a guide wheel body 2. The two ends of the guide wheel body 2's rotating shaft are rotatably mounted in bearing seats 3. Swing brackets 4 are provided on both sides of the mounting base 1. The middle part of the swing bracket 4 is swayably connected to the mounting base 1 via a hinge shaft 5. The bearing seats 3 are fixed to the inner end of the swing bracket 4. A torsional elastic element 6 is connected to the outer end of the swing bracket 4, and the other end of the torsional elastic element 6 is connected to the hinge shaft 5. In this structure, when the steel wire passes through the guide wheel body 2 at high speed and generates lateral vibration, the vibration is transmitted to the guide wheel body. 2. Through its rotating shaft, it drives the bearing seat 3, which in turn pushes the swing bracket 4 to swing slightly around the hinge shaft 5. During the movement, the outer end of the swing bracket 4 pulls the torsional elastic element 6 to undergo elastic torsional deformation. One end of the torsional elastic element 6 swings synchronously with the swing bracket 4, while the other end is fixed on the hinge shaft 5 and remains stationary. Through the torsional deformation of its internal elastic structure, it absorbs and buffers vibration energy. After the steel wire vibration weakens, the torsional elastic element 6 recovers its deformation through its own elasticity, pushing the swing bracket 4 to reset, thereby driving the guide wheel body 2 back to the initial center position, realizing dynamic tracking and automatic reset of the steel wire's running posture. This effectively alleviates the periodic friction between the steel wire and the guide wheel groove caused by steel wire vibration, avoiding surface abrasion of the steel wire and local wear of the wheel groove. It solves the technical problems of existing fixed guide wheels lacking dynamic adaptability and failing to buffer high-frequency micro-amplitude vibrations of the steel wire, thus affecting the surface finish of the product. The torsional elastic element 6 is a one-piece molded metal elastomer, including a central connecting sleeve 61, radial spoke rings 62, and three sets of S-shaped flexible arms 63 evenly distributed circumferentially at 120°. The radial spoke rings 62 are welded and sleeved on the outside of the central connecting sleeve 61. The S-shaped flexible arms 63 extend radially and bend symmetrically in a wave-like shape. This structure... The S-shaped flexible arm 63 achieves buffering and reset through elastic torsional deformation. The central connecting sleeve 61 is fixedly connected to the hinge shaft 5. The radial spoke ring 62 moves synchronously with the swing bracket 4. The three sets of S-shaped flexible arms 63 are evenly distributed circumferentially, with balanced force and coordinated deformation, effectively absorbing vibration energy and providing stable restoring force, avoiding stress concentration, and improving the fatigue life and response consistency of the torsional elastic element 6. The hinge shaft 5 is a stepped shaft that passes through the side plate of the mounting base 1. The shoulder of the stepped shaft abuts against one side plate of the mounting base 1, and the other end is fixed by a locking nut. A 0.1-0.1 gap is provided between the hinge hole of the swing bracket 4 and the hinge shaft 5.With a 3mm radial clearance, this structure uses the shoulder of the stepped shaft for positioning and the locking nut for engagement, ensuring a stable installation of the hinge shaft 5 on the mounting base 1 and reliable support. The radial clearance between the hinge hole of the swing bracket 4 and the hinge shaft 5 ensures flexible swinging of the swing bracket 4 around the axis while avoiding motion jamming caused by interference fit, effectively reducing frictional resistance and improving the response sensitivity to wire vibration. The central connecting sleeve 61 is interference-fitted onto the hinge shaft 5. The outer edge of the radial spoke ring 62 is provided with a connecting boss 41, which is fixedly connected to the outer end of the swing bracket 4 by screws. This structure ensures a reliable connection of the fixed end of the torsional elastic element 6, preventing circumferential slippage. The connecting boss 41 is firmly connected to the swing bracket 4 by screws, ensuring effective torque transmission during swinging. The connection is stable and easy to disassemble and assemble, ensuring the synchronization and durability between the elastic element and the moving parts. For durability, the S-shaped flexible arm 63 has a rectangular cross-section and is formed by wire cutting from high-strength spring steel. The radial spoke ring 62 and the S-shaped flexible arm 63 are an integral continuous structure. This structure ensures that the S-shaped flexible arm 63 has excellent elastic properties and fatigue strength. The rectangular cross-section is conducive to bearing torsional loads. The overall continuous structure has no weak points in welding or assembly, which improves the structural integrity and long-term reliability of the torsional elastic component 6. The swing bracket 4 has guide sliders 7 on both sides. The guide sliders 7 are horizontally distributed and are fixed to the swing bracket 4 by welding. The guide sliders 7 slide into the arc-shaped guide grooves 8 opened on the mounting base 1. This structure precisely constrains the movement trajectory of the swing bracket 4, preventing it from deflecting or laterally moving during swinging, ensuring that the guide wheel body 2 always swings smoothly within the predetermined plane, improving the stability of the movement and the repeatability of the positioning.
[0018] Working principle: When using this wire drawing auxiliary device, the wire first passes through the groove of the guide wheel body 2 and begins to run at high speed. When the wire vibrates laterally during the drawing process, the vibration is transmitted to the guide wheel body 2 through the wire. The guide wheel body 2 drives its rotating shaft and the bearing seats 3 on both sides to generate synchronous swing force. The bearing seats 3 transmit the motion to the inner end of the swing bracket 4 fixed to it, causing the swing bracket 4 to swing slightly around the hinge shaft 5. The outer end of the swing bracket 4 deflects outward or inward accordingly. This motion is connected to the radial spoke ring 62 of the torsional elastic element 6 through screws, causing the S-shaped flexible arm 63 to undergo elastic torsional deformation around the central connecting sleeve 61. At the same time, the guide sliders 7 on both sides of the swing bracket 4 slide synchronously along the arc-shaped guide groove 8 on the mounting base 1 to maintain the swing trajectory. When the wire vibration weakens, the S-shaped flexible arm 63 returns to its original shape by relying on the elasticity of the material itself, pushing the swing bracket 4 to reset in the opposite direction, driving the guide wheel body 2 back to the initial centering position, thus completing a series of operations.
[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A wire drawing auxiliary device, comprising a mounting base (1) and a guide wheel body (2), wherein the two ends of the rotating shaft of the guide wheel body (2) are rotatably mounted in a bearing seat (3), characterized in that: The mounting base (1) has swing brackets (4) on both sides inside. The middle part of the swing bracket (4) is swayably connected to the mounting base (1) through the hinge shaft (5). The bearing seat (3) is fixed to the inner end of the swing bracket (4), and the outer end of the swing bracket (4) is connected to a torsion elastic element (6). The other end of the torsion elastic element (6) is connected to the hinge shaft (5).
2. The wire drawing auxiliary device according to claim 1, characterized in that: The torsional elastic element (6) is an integrally formed metal elastomer, including a central connecting sleeve (61), a radial spoke ring (62), and three sets of S-shaped flexible arms (63) evenly distributed in a 120° circumferential direction. The S-shaped flexible arms (63) extend radially and are symmetrically wavy.
3. The wire drawing auxiliary device according to claim 1, characterized in that: The hinge shaft (5) is a stepped shaft that passes through the side plate of the mounting base (1). The shoulder of the stepped shaft abuts against one side plate of the mounting base (1), and the other end is fixed by a locking nut. A radial gap of 0.1-0.3mm is provided between the hinge hole of the swing bracket (4) and the hinge shaft (5).
4. The wire drawing auxiliary device according to claim 2, characterized in that: The central connecting sleeve (61) is interference-fitted onto the hinge shaft (5), and the outer edge of the radial spoke ring (62) is provided with a connecting boss (41), which is fixedly connected to the outer end of the swing bracket (4) by screws.
5. The wire drawing auxiliary device according to claim 2, characterized in that: The S-shaped flexible arm (63) has a rectangular cross-section and is formed by wire cutting of high-strength spring steel. The radial spoke ring (62) and the S-shaped flexible arm (63) are an integral continuous structure.
6. The wire drawing auxiliary device according to claim 1, characterized in that: The swing bracket (4) is provided with guide sliders (7) on both sides, and the guide sliders (7) are slidably embedded in the arc-shaped guide grooves (8) opened on the mounting base (1).