A winding device for multi-diameter steel wire zinc layer adhesion detection

By setting up a multi-layer nested structure and snap-fit ​​components on the winding device, the sliding adjustment of the core tube on the mandrel is realized, which solves the problems of long time consumption and coaxiality deviation in traditional devices, and improves the consistency and efficiency of the test results.

CN224493319UActive Publication Date: 2026-07-14NINGBO ZHENGXIN TESTING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO ZHENGXIN TESTING TECH CO LTD
Filing Date
2025-09-10
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing steel wire zinc coating adhesion testing devices are time-consuming and prone to coaxiality deviations when changing mandrels of different diameters, affecting the consistency of test results.

Method used

It adopts a multi-layer nested structure and snap-fit ​​components. The sliding adjustment and fixation of the core tube on the mandrel are achieved through the cooperation of the slider and the groove, ensuring coaxiality and eliminating the need to disassemble and replace the mandrel.

Benefits of technology

The process of switching mandrel diameters has been simplified, the consistency and accuracy of test results have been improved, and the difficulty and time cost of operation have been reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to steel wire detection technical field, concretely relates to a kind of winding device for the adhesion of multiple diameter steel wire zinc layer detection.It includes detection equipment, and the detection equipment inside is equipped with winding structure, and the winding structure outer wall is equipped with multilayer nesting structure, and the nesting structure between each layer is equipped with clamping assembly.Through multilayer different diameter sleeve core pipe is successively sleeved on mandrel, and cooperate with the auxiliary push of clamping assembly and handle, through the slider of clamping assembly always sliding in the sliding groove of sleeve core pipe inner wall, make sleeve core pipe always keep coaxial with mandrel in telescopic adjustment process, avoid the steel wire winding deviation problem caused by the cooperation gap of traditional manual plug structure;And, through clamping assembly to the sleeve core pipe position after telescoping is fixed, so as not to disassemble and replace mandrel directly adjust the telescopic state of sleeve core pipe to change winding diameter, avoid the tedious operation of traditional structure frequently disassembling and replacing mandrel.
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Description

Technical Field

[0001] This utility model relates to the field of steel wire testing technology, and more specifically, to a winding device for testing the zinc coating adhesion of multi-diameter steel wires. Background Technology

[0002] The core principle of the wire zinc coating adhesion testing winding device is to simulate the bending conditions of steel wire in actual use. The galvanized steel wire to be tested is wound around a mandrel of a specific diameter a predetermined number of times. Then, visual observation or auxiliary testing methods (such as a magnifying glass or eddy current testing) are used to determine whether cracks, peeling, or wrinkles appear in the zinc coating, thereby assessing whether the adhesion meets the standards. Existing winding devices typically consist of a frame, mandrel mounting assembly, guiding mechanism, tension adjustment mechanism, and control unit. The mandrel, as a key actuator, must have a diameter matched to the diameter of the steel wire to be tested according to a standard ratio.

[0003] In existing wire zinc coating adhesion testing winding devices, to accommodate wires of different diameters, traditional devices require multiple sets of fixed-diameter mandrels of different specifications. The connection between the mandrels and the main shaft is primarily via threaded connection or manual insertion / removal. Threaded connections require tools such as wrenches to remove bolts, take out the old mandrel, and then align it with the threaded hole to install the new mandrel, which is time-consuming. Manual insertion / removal eliminates the need to remove bolts, but requires precise manual alignment of the mandrel with the positioning hole or keyway on the main shaft. Furthermore, limitations in mechanical clearance can lead to coaxiality deviations, causing wire misalignment during winding and affecting the consistency of test results. It is also inconvenient to directly replace different mandrels on the winding device itself.

[0004] Therefore, we propose a winding device for detecting the zinc coating adhesion of multi-diameter steel wires. Utility Model Content

[0005] This invention provides a winding device for detecting the zinc coating adhesion of multi-diameter steel wires. It utilizes a multi-layered nested structure on the outer wall of the winding structure, along with a snap-fit ​​assembly, to achieve sliding adjustment and fixation of the nested structure. This allows for direct extension and retraction adjustment of core tubes of different diameters on the mandrel to match steel wires of varying diameters. The winding diameter can be quickly changed without disassembling or replacing the mandrel. Furthermore, the cooperation between the slider and the groove ensures coaxiality during adjustment, thus solving the problems mentioned in the background art.

[0006] Traditional devices use threaded connections or manual plugging and unplugging to replace the core rod, which has the problems of being time-consuming, prone to coaxiality deviation, and inconvenient to directly replace different core rods on the device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A winding device for detecting zinc coating adhesion of multi-diameter steel wire includes a detection device, wherein the detection device has a winding structure inside, the outer wall of the winding structure has a multi-layer nested structure, and a snap-fit ​​component is provided between each layer of the nested structure;

[0009] The snap-fit ​​assembly is used to adjust and fix the position between the multi-layer nested structures. The nested structures are used to match the winding of steel wires of different diameters. The nested structures can be directly slid and adjusted on the winding structure, and the winding diameter can be directly changed on the testing equipment.

[0010] Preferably, the winding structure includes a mandrel, which is disposed inside the testing equipment. A motor is provided at the end of the mandrel, and a nested structure is slidably connected to the outer wall of the mandrel through a snap-fit ​​assembly. The motor is used to drive the mandrel and the nested structure to rotate simultaneously.

[0011] Preferably, the nested structure includes a core tube, and multiple core tubes of different diameters are sequentially fitted onto the mandrel in ascending order through a snap-fit ​​assembly. The core tube has a through hole inside and a handle on its outer wall, with multiple handles nested together.

[0012] Preferably, the snap-fit ​​assembly includes a slider, which is fixedly connected to the outer wall of the mandrel and the sleeve tube. The inner wall of the sleeve tube is provided with a groove, and the slider is slidably connected inside the groove of the sleeve tube. A locking rod is provided inside the slider, and the locking rod is connected to the inner wall of the slider by a spring. The locking rod is movably snapped into the groove of the sleeve tube.

[0013] Preferably, the through holes of the core tube overlap each other, which can help the steel wire to be inserted into the through hole, and the handle is used to help the worker push the core tube to adjust the diameter shrinkage.

[0014] Preferably, a sealing plate is provided between the outer wall of the nested structure and the testing equipment. The sealing plate is fixedly connected to the inside of the testing equipment by screws. The sealing plate can be disassembled and replaced according to the maximum diameter of the nested structure. The sealing plate can support the expansion and contraction adjustment of the nested structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In a winding device for testing the zinc coating adhesion of multi-diameter steel wires, multiple layers of core tubes of different diameters are sequentially sleeved on the mandrel. With the assistance of a snap-fit ​​assembly and a handle, the slider of the snap-fit ​​assembly always slides within the groove on the inner wall of the core tube, ensuring that the core tube remains coaxial with the mandrel during the extension and retraction adjustment process. This avoids the problem of steel wire winding deviation caused by the fit gap in the traditional manual insertion and removal structure, thus ensuring the consistency and accuracy of the test results.

[0017] Furthermore, the position of the extended core tube is fixed by the snap-fit ​​assembly, so the extension and retraction state of the core tube can be directly adjusted to change the winding diameter without disassembling and replacing the mandrel. This simplifies the mandrel diameter switching process when testing multiple specifications of steel wire and avoids the cumbersome operation of frequently replacing the mandrel in traditional structures.

[0018] 2. In a winding device for testing the zinc coating adhesion of multi-diameter steel wires, the overlapping design of the through holes inside the core tube, combined with the stable state of the core tube after being fixed by the snap-fit ​​component, facilitates the quick insertion and alignment of the steel wire to be tested into the winding position; no additional tools are required, and the extension and retraction of the core tube can be completed by the handle alone, further reducing the difficulty of manual operation and improving the efficiency of the test preparation process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the disassembly structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the sliding buckle structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the nested structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the core structure of this utility model.

[0025] The components represented by each number in the attached diagram are listed below: 1. Testing equipment; 11. Sealing plate; 12. Screw; 13. Winding structure; 130. Mandrel; 131. Motor; 14. Nested structure; 140. Core tube; 141. Through hole; 142. Handle; 15. Snap-fit ​​assembly; 150. Slider; 151. Locking rod; 152. Spring. Detailed Implementation

[0026] 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.

[0027] Example 1

[0028] Please see Figure 1 - Figure 6 The diagram shows a winding device for detecting the zinc coating adhesion of multi-diameter steel wire, including a detection device 1, a winding structure 13 inside the detection device 1, a multi-layer nested structure 14 on the outer wall of the winding structure 13, and a snap-fit ​​component 15 between each nested structure 14.

[0029] The snap-fit ​​assembly 15 is used to adjust and fix the position between the multi-layer nested structures 14. The nested structures 14 are used to match the winding of steel wires of different diameters. The nested structures 14 can be directly slid and adjusted on the winding structure 13, and the winding diameter can be directly changed on the detection device 1.

[0030] When implementing, refer to Figure 3 As shown, the winding structure 13 includes a mandrel 130, which is disposed inside the detection device 1. A motor 131 is provided at the end of the mandrel 130. A nested structure 14 is slidably connected to the outer wall of the mandrel 130 through a snap-fit ​​assembly 15. The motor 131 is used to drive the mandrel 130 and the nested structure 14 to rotate simultaneously.

[0031] Before testing, the nested structure 14 is adjusted on the outer wall of the mandrel 130 according to the diameter requirement of the steel wire to be tested. The operator pushes the nested structure 14 to slide along the outer wall of the mandrel 130. The slider 150 of the snap-fit ​​assembly 15 cooperates with the groove to achieve smooth movement. After the nested structure 14 is adjusted to the position that matches the diameter of the steel wire, the snap-fit ​​assembly 15 will fix its position to ensure that the nested structure 14 and the mandrel 130 are relatively stable and coaxial.

[0032] During testing, the motor 131 at the end of the mandrel 130 is started. The motor 131 outputs power to drive the mandrel 130 to rotate inside the testing equipment 1. Since the nested structure 14 has formed a stable connection with the mandrel 130 through the snap-fit ​​component 15, the mandrel 130 will synchronously drive the nested structure 14 to rotate together during the rotation. At this time, the galvanized steel wire to be tested can be wound around the rotating nested structure 14 a specified number of times to simulate the bending condition of the steel wire in actual use, providing a basis for subsequent judgment on whether the zinc layer adhesion meets the standard.

[0033] For details, please refer to Figure 5 and Figure 6 As shown, the nested structure 14 includes a core tube 140. Multiple core tubes 140 of different diameters are sequentially sleeved on the core rod 130 in ascending order through a snap-fit ​​assembly 15. The core tube 140 has a through hole 141 inside and a handle 142 on the outer wall of the core tube 140. Multiple handles 142 are nested together.

[0034] Since multiple core tubes 140 are pre-attached to the mandrel 130 in ascending order via the snap-fit ​​assembly 15, the core tube 140 matching the wire diameter can be directly selected as the target adjustment object without the need to replace the independent mandrel 130. Because multiple handles 142 are nested together, the target core tube 140 can be precisely pushed during operation, avoiding accidental contact with core tubes 140 of other diameters. During the pushing process, the core tube 140 maintains a stable sliding fit with the mandrel 130 through the snap-fit ​​assembly 15, that is, the slider 150 between the mandrel 130 and the core tube 140 moves along the slide groove, ensuring that the core tube 140 is always coaxial with the mandrel 130 during adjustment. After the target core tube 140 is moved to the position matching the wire diameter, the snap-fit ​​assembly 15 will fix its position to prevent the core tube 140 from shifting during winding.

[0035] Among them, see Figure 4 and Figure 5 As shown, the snap-fit ​​assembly 15 includes a slider 150, which is fixedly connected to the outer wall of the core rod 130 and the sleeve tube 140. The inner wall of the sleeve tube 140 is provided with a groove, and the slider 150 is slidably connected inside the groove of the sleeve tube 140. A locking rod 151 is provided inside the slider 150, and the locking rod 151 is connected to the inner wall of the slider 150 by a spring 152. The locking rod 151 is movably snapped into the groove of the sleeve tube 140.

[0036] Since the slider 150 is fixed to the outer wall of the core rod 130 and the outer wall of the sleeve tube 140 respectively, and the inner wall of the sleeve tube 140 is pre-set with a groove matching the slider 150, when the sleeve tube 140 is pushed, the slider 150 will slide smoothly along the groove on the inner wall of the sleeve tube 140, and the groove will limit the slider 150. During the sliding process of the slider 150, the inner wall of the groove of the sleeve tube 140 will continuously contact and compress the locking rod 151 inside the slider 150. After being compressed, the locking rod 151 will retract into the slider 150, and at the same time compress the spring 152 connected to it, so that the spring 152 is in an energy storage state. At this time, the locking rod 151 temporarily disengages from the locking state with the groove, and does not hinder the sliding adjustment of the sleeve tube 140.

[0037] When the core tube 140 moves to the target position that matches the diameter of the steel wire, the squeezing force of the inner wall of the groove on the locking rod 151 disappears, and the spring 152, which is in the energy storage state, will quickly rebound, pushing the locking rod 151 to extend outward of the slider 150 until the locking rod 151 is re-locked into the groove of the core tube 140. Through the locking action of the locking rod 151 and the groove, the core tube 140 is fixed in the current position, preventing the core tube 140 from being displaced due to the rotation of the mandrel 130 or the action of external force during the subsequent winding process. Finally, the core tube 140 is stably positioned after adjustment, providing a guarantee for the stable winding and detection of multi-diameter steel wires.

[0038] When it is necessary to release the locking state of the latch 151 to readjust the position of the sleeve tube 140, refer to Figure 4 As shown, the end of the clamping rod 151 is arc-shaped, and the groove inside the sleeve tube 140 is also arc-shaped, matching the arc-shaped end of the clamping rod 151. The operator only needs to apply a pushing force along the axial direction of the mandrel 130 to the sleeve tube 140. This pushing force will cause the groove on the inner wall of the sleeve tube 140 to contact the arc-shaped end of the clamping rod 151, forming a lateral squeezing force. This squeezing force can overcome the elastic force of the spring 152 inside the slider 150, pushing the clamping rod 151 to retract into the slider 150. As the clamping rod 151 gradually retracts into the slider 150... 50, the engagement between the core tube 140 and the groove is broken, the spring 152 is compressed again and enters the energy storage state. At this time, the locking state of the core tube 140 is released, and it can continue to slide and adjust to a new target position along the direction of the slider 150 and the groove on the outer wall of the core rod 130. After moving to the position of the appropriate diameter, the spring 152 rebounds and pushes the locking rod 151 to engage with the groove, completing the locking of the new position, realizing the flexible adjustment and stable locking switching of the core tube 140 under different diameter adaptation requirements.

[0039] In addition, the through holes 141 of the sleeve tube 140 overlap, which can help the steel wire to be inserted into the through hole 141. The handle 142 is used to help the staff push the sleeve tube 140 to adjust the diameter shrinkage.

[0040] The mutual overlap of the through holes 141 ensures that no matter what expansion or contraction state the core tube 140 is adjusted to according to the diameter requirement of the steel wire to be tested, the through holes 141 of each layer of core tube 140 will always remain aligned. This avoids difficulties in inserting the steel wire due to misalignment of the through holes 141, thereby assisting the staff to quickly and smoothly thread the steel wire to be tested into the through holes 141, laying the positioning foundation for the subsequent stable winding of the steel wire around the core tube 140.

[0041] The handle 142 provides a precise force application point for the operator to adjust the sleeve tube 140. The operator can apply pushing or pulling force by holding the handle 142, which will drive the sleeve tube 140 along the outer wall of the core rod 130. In conjunction with the slider 150 of the snap-fit ​​assembly 15 and the slide groove, the diameter of the sleeve tube 140 can be adjusted by shrinking or extending. This avoids the inconvenience or accidental contact that may occur when directly contacting the sleeve tube 140, and ensures that the force is evenly distributed during the adjustment of the sleeve tube 140, further improving the efficiency and stability of multi-diameter adaptation adjustment.

[0042] In addition, see Figure 3 As shown, a sealing plate 11 is provided between the outer wall of the nested structure 14 and the testing device 1. The sealing plate 11 is fixedly connected to the inside of the testing device 1 by screws 12. The sealing plate 11 can be disassembled and replaced according to the maximum diameter of the nested structure 14. The sealing plate 11 can support the expansion and contraction adjustment of the nested structure 14.

[0043] Before and during testing, when the core tube 140 slides along the mandrel 130 to adjust its diameter, the sealing plate 11 can limit the radial sway of the core tube 140, preventing the core tube 140 from shifting due to its own weight or external force during adjustment. In conjunction with the slider 150 and the groove of the snap-fit ​​assembly 15, it ensures that the core tube 140 always remains coaxial with the mandrel 130. When the motor 131 drives the mandrel 130 and the core tube 140 to rotate synchronously for winding testing, the sealing plate 11 can counteract the centrifugal force generated by the rotation of the core tube 140, preventing radial displacement of the core tube 140, ensuring the stability of the winding process, and avoiding uneven wire winding due to the sway of the core tube 140, which would affect the zinc layer adhesion test results.

[0044] When the diameter of the steel wire involved in the testing needs changes significantly, causing the nested structure 14 to need to be extended to a larger maximum diameter, a larger diameter core tube 140 needs to be installed on the nested structure 14 according to the requirements. If the hole diameter of the original sealing plate 11 cannot be adapted to the maximum diameter, it will hinder the extension of the core tube 140 or cause friction. At this time, the operator can remove the original sealing plate 11 by disassembling the screws 12 that fix the sealing plate 11, replace it with a new sealing plate 11 that matches the maximum diameter of the current nested structure 14, and then use screws 12 to re-fix the new sealing plate 11 inside the testing equipment 1.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winding device for multi-diameter steel wire zinc layer adhesion detection, comprising a detection equipment (1), wherein a winding structure (13) is arranged inside the detection equipment (1), characterized in that: The outer wall of the winding structure (13) is provided with a multi-layer nested structure (14), and a snap-fit ​​component (15) is provided between each layer of the nested structure (14). The snap-fit ​​assembly (15) is used to adjust and fix the position between the multi-layer nested structures (14). The nested structures (14) are used to match wires of different diameters. The nested structures (14) can be directly slid and adjusted on the winding structure (13) and the winding diameter can be directly changed on the detection device (1).

2. The winding device for the detection of the adhesion of the zinc layer of multi-diameter steel wires according to claim 1, characterized in that: The winding structure (13) includes a mandrel (130), which is disposed inside the detection device (1). A motor (131) is provided at the end of the mandrel (130). A nested structure (14) is slidably connected to the outer wall of the mandrel (130) through a snap-fit ​​assembly (15). The motor (131) is used to drive the mandrel (130) and the nested structure (14) to rotate simultaneously.

3. The winding device for the detection of the adhesion of the zinc layer of multi-diameter steel wires according to claim 2, characterized in that: The nested structure (14) includes a core tube (140), and multiple core tubes (140) of different diameters are sequentially sleeved on the core rod (130) in ascending order through a snap-fit ​​assembly (15). The core tube (140) has a through hole (141) inside and a handle (142) on the outer wall of the core tube (140). Multiple handles (142) are nested together.

4. The winding device for detecting zinc coating adhesion of multi-diameter steel wire according to claim 3, characterized in that: The snap-fit ​​assembly (15) includes a slider (150), which is fixedly connected to the outer wall of the mandrel (130) and the sleeve tube (140). The inner wall of the sleeve tube (140) is provided with a groove, and the slider (150) is slidably connected inside the groove of the sleeve tube (140). The slider (150) is provided with a locking rod (151), and the locking rod (151) is connected to the inner wall of the slider (150) by a spring (152). The locking rod (151) is movably snapped into the groove of the sleeve tube (140).

5. The winding device for detecting zinc coating adhesion of multi-diameter steel wire according to claim 3, characterized in that: The through holes (141) of the core tube (140) overlap each other, which can help the steel wire to be inserted into the through hole (141). The handle (142) is used to help the operator push the core tube (140) to adjust the diameter.

6. The winding device for detecting zinc coating adhesion of multi-diameter steel wire according to claim 1, characterized in that: A sealing plate (11) is provided between the outer wall of the nested structure (14) and the testing device (1). The sealing plate (11) is fixedly connected to the inside of the testing device (1) by screws (12). The sealing plate (11) can be disassembled and replaced according to the maximum diameter of the nested structure (14). The sealing plate (11) can support the expansion and contraction adjustment of the nested structure (14).