Coating and shaping device for eliminating edge effects in electroplating of steel strips

Abstract

This invention provides a coating shaping device for eliminating the edge effect of electroplating on steel strips, belonging to the field of steel strip coating technology. It includes two sets of shaping components spaced apart along a first path. Each shaping component includes an edge cover, a detection mechanism, and a driving mechanism. A shaping groove is formed on the inner side of the edge cover. The detection mechanism is located within the shaping groove and includes a detection element and a controller connected to the detection element. Multiple detection elements are arranged along a second path, which is perpendicular to the first path and parallel to the extension direction of the steel strip. The detection elements are used to detect the distance between the edge cover and the steel strip along the first path. The driving mechanism is connected to the outer side of the edge cover and communicates with the controller. The driving mechanism is used to drive the edge cover to move along the first path. This coating shaping device for eliminating the edge effect of electroplating on steel strips aims to solve the problem of excessively thick edge coatings on steel strips, leading to a decrease in corrosion resistance and adhesion.

Description

Technical Field

[0001] This utility model belongs to the field of steel strip coating technology, and more specifically, it relates to a coating shaping device for eliminating the edge effect of steel strip electroplating. Background Technology

[0002] In the coating process of steel strip, uneven current distribution occurs when current passes through the electrolyte. Metal ions in the plating solution migrate towards the steel strip surface under the drive of the electric field. The special geometry of the steel strip's edge region causes its ion migration rate to be significantly faster than that in the middle region. This results in a significantly higher current density at the steel strip edge compared to the middle. According to Faraday's law of electrolysis, current density is directly proportional to the coating deposition rate. Therefore, during electroplating, the coating at the steel edge will be thicker than that in the middle.

[0003] Uneven coating thickness directly impacts product performance and quality. For example, during subsequent processing or use, excessively thick coatings at the edges can lead to decreased coating adhesion, uneven corrosion resistance, and even affect the mechanical properties of the steel strip. Furthermore, uneven coating distribution increases material waste and production costs. Currently, although the industry attempts to improve current distribution through optimizing electrode arrangement, adjusting plating solution composition, or employing shielding technology, it remains difficult to completely eliminate the uneven coating problem caused by edge effects. Utility Model Content

[0004] The purpose of this invention is to provide a coating shaping device for eliminating the edge effect of electroplating on steel strips, aiming to solve the problem that the edge coating of steel strips is too thick, which leads to a decrease in its corrosion resistance and adhesion.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A coating shaping apparatus for eliminating edge effects in steel strip electroplating is provided, comprising two sets of shaping components spaced apart along a first path, wherein a coating space for accommodating the steel strip is formed between the two sets of shaping components, and the shaping components include:

[0007] An edge cover, wherein a shaping groove is provided on the inner side of the edge cover, the shaping groove being used to achieve an insertion fit with the edge of the steel strip;

[0008] A detection mechanism, located within the forming groove, includes detection elements and a controller communicatively connected to the detection elements. Multiple detection elements are arranged along a second path, which is perpendicular to the first path and parallel to the extension direction of the steel strip. The detection elements are used to detect the distance between the edge cover and the steel strip along the first path.

[0009] A drive mechanism is connected to the outside of the edge cover and communicates with the controller. The drive mechanism is used to drive the edge cover to move along the first path.

[0010] In one possible implementation, the drive mechanism includes:

[0011] A telescopic actuator, connected to the edge cover, the telescopic actuator being a hydraulic telescopic component, extending and retracting along the first path; and

[0012] A regulating valve, connected to the telescopic actuator, is used to control the liquid flow rate within the telescopic actuator. The regulating valve is also communicatively connected to the controller.

[0013] In one possible implementation, the coating shaping apparatus for eliminating edge effects in steel strip electroplating further includes a winding mechanism disposed below the shaping assembly, the winding mechanism comprising:

[0014] The fixed frame has a winding space;

[0015] A winding shaft, disposed within the winding space and rotatably connected to the fixed frame about the first path as its pivot, is used to wind up the coated steel strip; and

[0016] A take-up driver, connected to the take-up shaft, is used to drive the take-up shaft to rotate.

[0017] In one possible implementation, the fixing frame includes:

[0018] Support bracket; and

[0019] The mounting bracket is slidably connected to the support bracket along the third path, the mounting bracket having the winding space, and the third path being perpendicular to the first path and the second path.

[0020] In one possible implementation, the winding mechanism further includes an adjustment driver connected to the mounting bracket, the adjustment driver being used to drive the mounting bracket to move along the third path.

[0021] In one possible implementation, the winding mechanism further includes a tension detector disposed on the winding shaft, the tension detector and the adjustment driver being communicatively connected to the controller, the tension detector being used to detect the tension generated by the steel strip.

[0022] In one possible implementation, the shaping component further includes an elastic buffer layer disposed within the shaping groove, the elastic buffer layer being used to achieve flexible contact with the steel strip.

[0023] In one possible implementation, the detection element is a miniature pressure sensor, and the shaping assembly further includes an elastic element disposed at the detection end of the miniature pressure sensor, the elastic element abutting against the edge of the steel strip along the first path.

[0024] In one possible implementation, the detection element is a laser displacement sensor, and a plurality of the laser displacement sensors are distributed at equal intervals along the second path.

[0025] The beneficial effects of the coating shaping device for eliminating the edge effect of electroplating on steel strips provided by this utility model are as follows: Compared with the prior art, by interlocking the edge cover with the edge of the steel strip, combined with real-time monitoring of the detection mechanism and dynamic adjustment of the drive mechanism, the problem of excessively thick coating caused by excessive current density at the edge of the steel strip can be effectively reduced, thereby improving the unevenness of coating adhesion and corrosion resistance. Multiple detection components in the detection mechanism are distributed along the extension direction of the steel strip, which can comprehensively capture the distance information between different positions of the steel strip edge and the edge cover. Combined with the instantaneous response of the drive mechanism, the position adjustment of the edge cover is more targeted and precise, adapting to minor deviations during the operation of the steel strip and ensuring the consistency of the shaping effect. Through active shaping and dynamic control, this device reduces material waste caused by uneven coating and lowers the scrap rate caused by performance defects in subsequent processing, thereby saving production costs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the coating shaping device for eliminating the edge effect of electroplating on steel strips provided in an embodiment of this utility model;

[0028] Figure 2 for Figure 1 Sectional view of line AA in the middle;

[0029] Figure 3 for Figure 2 A magnified view of part B in the middle.

[0030] In the diagram: 1. Edge cover; 2. Drive mechanism; 3. Steel strip; 4. Winding mechanism; 401. Fixing frame; 4011. Support bracket; 4012. Mounting bracket; 402. Tension detector; 403. Winding driver; 404. Adjustment driver; 405. Winding shaft; 5. Detection component. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. Unless otherwise stated, other directional terms, such as "vertical," "clockwise," and "counterclockwise," indicate orientation or positional relationships based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, not to indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this utility model. In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two, that is, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements. In the claims, description, and accompanying drawings of this utility model, the terms "comprising," "having," and their variations are intended to mean "including but not limited to."

[0033] Please refer to the following: Figures 1 to 3 The present invention provides a coating shaping device for eliminating the edge effect of electroplating on steel strip 3. The coating shaping device for eliminating the edge effect of electroplating on steel strip 3 includes two sets of shaping components spaced apart along a first path. A coating space for accommodating the steel strip 3 is formed between the two sets of shaping components. Each shaping component includes an edge cover 1, a detection mechanism, and a driving mechanism 2. A shaping groove is provided on the inner side of the edge cover 1 for interlocking with the edge of the steel strip 3. The detection mechanism is located within the shaping groove and includes a detection element 5 and a controller communicatively connected to the detection element 5. Multiple detection elements 5 are provided along a second path, which is perpendicular to the first path and parallel to the extension direction of the steel strip 3. The detection elements 5 are used to detect the distance between the edge cover 1 and the steel strip 3 along the first path. The driving mechanism 2 is connected to the outer side of the edge cover 1 and communicatively connected to the controller. The driving mechanism 2 is used to drive the edge cover 1 to move along the first path.

[0034] The coating shaping device for eliminating the edge effect of electroplating on steel strip 3 provided by this utility model, compared with the prior art, effectively reduces the problem of excessively thick coating caused by excessive current density at the edge of steel strip 3 by interlocking the edge cover 1 with the edge of steel strip 3, combined with real-time monitoring of the detection mechanism and dynamic adjustment of the drive mechanism 2. This improves the uneven coating adhesion and corrosion resistance. Multiple detection elements 5 are distributed along the extension direction of steel strip 3 in the detection mechanism, which can comprehensively capture the distance information between different positions of the edge of steel strip 3 and the edge cover 1. Combined with the instantaneous response of the drive mechanism 2, the position adjustment of the edge cover 1 is more targeted and precise, adapting to minor deviations during the operation of steel strip 3 and ensuring the consistency of the shaping effect. This device, through active shaping and dynamic control, reduces material waste caused by uneven coating and lowers the scrap rate caused by performance defects in subsequent processing, thereby saving production costs.

[0035] Work process:

[0036] The steel strip 3 enters the coating space formed by the two sets of shaping components along its extension direction. The shaping groove of the edge cover 1 initially engages with the edge of the steel strip 3 (the initial spacing is preset according to the specifications of the steel strip 3). At this time, multiple detectors 5 distributed along the second path of the detection mechanism begin to detect the spacing between the edge cover 1 and the steel strip 3 in real time along the first path, and transmit the detection signals to the controller. Since the current density at the edge of the steel strip 3 is likely to be higher than that in the middle area, the coating deposition rate is faster, which may cause a slight change in the spacing between the edge of the steel strip 3 and the edge cover 1. The detectors 5 continuously capture this spacing change. When the controller determines that the detected spacing deviation exceeds the set threshold, it immediately sends an adjustment command to the drive mechanism 2. The drive mechanism 2 responds to the command and drives the edge cover 1 to move along the first path: if the spacing is too small, the edge cover 1 moves outward to increase the spacing; if the spacing is too large, the edge cover 1 moves inward to reduce the spacing and suppress excessive ion migration.

[0037] Optionally, the drive mechanism 2 is connected to the non-central area of ​​the edge cover 1 in the second path. When the detection data of multiple detection elements 5 are different, the controller compares the detection structure of multiple detection elements 5 with the preset value to determine the offset direction of the edge cover 1, and controls the drive mechanism 2 to adjust the position of the edge cover 1 so that it no longer offsets and avoids friction with the steel belt 3.

[0038] Optionally, the drive mechanism 2 can be a pneumatic, hydraulic, or electric telescopic structure, or it can be a structure in which a lead screw is connected to a motor.

[0039] In some embodiments, please refer to Figure 1 The drive mechanism 2 includes a telescopic actuator and a regulating valve. The telescopic actuator is connected to the edge cover 1 and is a hydraulic telescopic component that extends and retracts along a first path. The regulating valve is connected to the telescopic actuator and is used to control the liquid flow rate in the telescopic actuator. The regulating valve is also connected to the controller.

[0040] As the steel strip 3 moves within the coating space, the shaping groove of the edge cover 1 engages with the edge of the steel strip 3. Multiple detection elements 5 within the shaping groove continuously monitor the distance between the edge cover 1 and the steel strip 3 along the first path and transmit the data to the controller. After analyzing the data, if the controller determines that the distance needs adjustment, it sends a control command to the regulating valve. Upon receiving the command, the regulating valve precisely controls the fluid flow rate within the hydraulic telescopic component (telescopic actuator), thereby controlling the telescopic actuator's extension and retraction amount and direction along the first path.

[0041] In some embodiments, please refer to Figure 1 The coating shaping device for eliminating the edge effect of electroplating of steel strip 3 also includes a winding mechanism 4 located below the shaping component. The winding mechanism 4 includes a fixed frame 401, a winding shaft 405, and a winding driver 403. The fixed frame 401 has a winding space. The winding shaft 405 is located in the winding space and is rotatably connected to the fixed frame 401 with the first path as the pivot. The winding shaft 405 is used to wind up the coated steel strip 3. The winding driver 403 is connected to the winding shaft 405 and is used to drive the winding shaft 405 to rotate.

[0042] The coated and shaped steel strip 3 is continuously conveyed to the winding mechanism 4 below. The winding driver 403 drives the winding shaft 405 to rotate around the first path as its axis within the winding space of the fixed frame 401. The rotating winding shaft 405 neatly winds up the processed steel strip 3. Throughout the process, the winding speed is matched with the conveying speed of the steel strip 3 within the coating space, ensuring that the steel strip 3 remains stable during winding and preventing the steel strip 3 from shifting due to uneven tension, which would affect the shaping effect. The winding mechanism 4 enables the steel strip 3 to form a complete automated process from coating and shaping to winding. The rotation of the winding shaft 405 around the first path as its axis, combined with the stable drive of the winding driver 403, ensures the neatness and tightness of the steel strip 3 winding, reduces wear during subsequent handling and storage, and improves the convenience of subsequent product processing.

[0043] Optionally, the winding driver 403 can be a pneumatic or hydraulic telescopic component, or an electric telescopic component, or a structure in which a motor is connected to a lead screw.

[0044] In some embodiments, please refer to Figure 1 The fixing frame 401 includes a support bracket 4011 and a mounting bracket 4012. The mounting bracket 4012 is slidably connected to the support bracket 4011 along a third path. The mounting bracket 4012 has a winding space. The third path is perpendicular to the first path and the second path.

[0045] Since the mounting bracket 4012 is slidably connected to the support bracket 4011 along the third path (perpendicular to the surface of the steel strip 3), during the winding process, the spatial position of the winding shaft 405 is adjusted by sliding the mounting bracket 4012 to ensure that the steel strip 3 maintains sufficient tension during the winding process, and to avoid problems such as wrinkles or edge misalignment caused by the loosening of the steel strip 3.

[0046] In some embodiments, please refer to Figure 1 The winding mechanism 4 also includes an adjustment driver 404 connected to the mounting bracket 4012, which is used to drive the mounting bracket 4012 to move along the third path.

[0047] The setting of the adjustment driver 404 realizes the automated control of the movement of the mounting bracket 4012 along the third path. Compared with manual adjustment, it can control the movement distance and speed more accurately, improve the accuracy and efficiency of position adjustment, reduce the workload and danger of manual operation, and also reduce the winding deviation caused by error, further ensuring the neatness and tightness of the steel strip 3 after winding.

[0048] Optionally, the adjusting actuator 404 is a pneumatic or hydraulic telescopic component.

[0049] In some embodiments, please refer to Figure 1 The winding mechanism 4 also includes a tension detector 402 located on the winding shaft 405. The tension detector 402 and the adjustment driver 404 are respectively connected to the controller. The tension detector 402 is used to detect the tension generated by the steel strip 3.

[0050] During the winding process of steel strip 3, the tension detector 402 on the winding shaft 405 detects the tension generated by steel strip 3 in real time and transmits the detected tension data to the controller in real time. After receiving the data, the controller compares the actual tension value with the preset optimal tension range. If the actual tension deviates from the optimal range (such as excessive or insufficient tension), the controller will immediately send an adjustment command to the adjustment driver 404. The adjustment driver 404 responds to the command and drives the mounting bracket 4012 to move along the third path, changing the tension state of steel strip 3 by adjusting the position of the winding shaft 405 until the tension detected by the tension detector 402 returns to the optimal range, ensuring that the tension of steel strip 3 remains stable throughout the winding process. Through the coordinated work of the tension detector 402, the controller, and the adjustment driver 404, real-time monitoring and automatic adjustment of the tension of steel strip 3 are achieved, avoiding problems such as stretching and deformation of steel strip 3 and cracking of the coating due to excessive tension, or loose winding and wrinkling of steel strip 3 due to insufficient tension, effectively ensuring the flatness and coating integrity of steel strip 3 after winding.

[0051] Optionally, the tension detector 402 is a pressure sensor installed on the take-up shaft 405, with pressure sensors installed at both ends of the take-up shaft 405 to directly measure the radial force.

[0052] In some embodiments, please refer to Figure 1 The shaping assembly also includes an elastic buffer layer disposed in the shaping groove, which is used to achieve flexible contact with the steel strip 3.

[0053] The elastic buffer layer enables flexible contact between the edge cover 1 and the steel strip 3, which can effectively avoid physical damage such as scratches and indentations caused by rigid contact to the edge of the steel strip 3. Especially when the steel strip 3 moves at high speed or there are small protrusions on the edge, it can adapt to the surface state of the steel strip 3 through its own deformation, thus protecting the integrity of the steel strip 3 substrate and coating.

[0054] Optionally, the elastic buffer layer is a rubber component.

[0055] In some embodiments, please refer to Figure 1 The detection element 5 is a miniature pressure sensor, and the shaping assembly also includes an elastic element disposed at the detection end of the miniature pressure sensor, the elastic element abutting against the edge of the steel strip 3 along the first path.

[0056] When the edge cover 1 engages with the edge of the steel strip 3, the elastic element located at the detection end of the miniature pressure sensor abuts against the edge of the steel strip 3 along the first path. The elastic element deforms under the reaction force of the steel strip 3, causing the miniature pressure sensor to sense the corresponding pressure. Since the degree of deformation of the elastic element is related to the distance between the edge cover 1 and the steel strip 3 along the first path (the smaller the distance, the more the elastic element is compressed, and the greater the pressure value detected by the pressure sensor; the larger the distance, the smaller the deformation of the elastic element, and the smaller the pressure value), the miniature pressure sensor can indirectly reflect the distance between the edge cover 1 and the steel strip 3 by detecting the pressure value transmitted by the elastic element, and transmit the pressure signal to the controller, providing a basis for the drive mechanism 2 to adjust the position of the edge cover 1. The deformation of the elastic element is continuous and stable, making the pressure sensor more sensitive and accurate in detecting changes in distance. Even slight changes in distance can be captured through changes in pressure value, improving the response accuracy of the detection mechanism.

[0057] In some embodiments, please refer to Figure 2 and Figure 3 The detection component 5 is a laser displacement sensor, and multiple laser displacement sensors are distributed at equal intervals along the second path.

[0058] As the steel strip 3 moves within the coating space, multiple laser displacement sensors, evenly spaced along the second path (perpendicular to the first path and parallel to the extension direction of the steel strip 3), continuously emit lasers towards the edge of the steel strip 3. The lasers are reflected by the edge of the steel strip 3 and received by the laser displacement sensors. Based on the time difference or phase difference between the emission and reception of the laser, the laser displacement sensors calculate their distance from the steel strip 3 along the first path (the direction in which the edge cover 1 approaches or moves away from the steel strip 3) and transmit the real-time detection data to the controller. The controller comprehensively analyzes the detection data from multiple sensors. If it determines that the distance between the edge cover 1 and the steel strip 3 does not meet the shaping requirements, it sends a command to the drive mechanism 2, driving the edge cover 1 to move along the first path until the distance is adjusted to the appropriate range. The laser displacement sensors employ a non-contact detection method, avoiding direct contact with the edge of the steel strip 3. This prevents wear or indentation on the coating surface of the steel strip 3, better protecting the integrity of the coating, reducing sensor wear, and extending service life. Moreover, multiple laser displacement sensors are evenly distributed along the second path, which can simultaneously collect the spacing information at different positions on the edge of the steel strip 3. The controller can promptly detect the tilt or local offset of the edge of the steel strip 3 through data comparison, making the adjustment of the drive mechanism 2 more comprehensive and targeted, and effectively improving the accuracy of the position control of the edge cover 1.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coating and shaping device for eliminating edge effects in steel strip electroplating, characterized in that, The assembly includes two sets of shaping components spaced apart along a first path, with a coating space formed between the two sets of shaping components for accommodating the steel strip. Each shaping component includes: An edge cover, wherein a shaping groove is provided on the inner side of the edge cover, the shaping groove being used to achieve an insertion fit with the edge of the steel strip; A detection mechanism, located within the forming groove, includes detection elements and a controller communicatively connected to the detection elements. Multiple detection elements are arranged along a second path, which is perpendicular to the first path and parallel to the extension direction of the steel strip. The detection elements are used to detect the distance between the edge cover and the steel strip along the first path. A drive mechanism is connected to the outside of the edge cover and communicates with the controller. The drive mechanism is used to drive the edge cover to move along the first path.

2. The coating and shaping device for eliminating the edge effect of electroplating on steel strips as described in claim 1, characterized in that, The drive mechanism includes: A telescopic actuator, connected to the edge cover, the telescopic actuator being a hydraulic telescopic component, extending and retracting along the first path; and A regulating valve, connected to the telescopic actuator, is used to control the liquid flow rate within the telescopic actuator. The regulating valve is also communicatively connected to the controller.

3. The coating and shaping device for eliminating the edge effect of electroplating on steel strips as described in claim 1, characterized in that, The coating shaping device for eliminating the edge effect of steel strip electroplating further includes a winding mechanism located below the shaping assembly, the winding mechanism comprising: The fixed frame has a winding space; A winding shaft, disposed within the winding space and rotatably connected to the fixed frame about the first path as its pivot, is used to wind up the coated steel strip; and A take-up driver, connected to the take-up shaft, is used to drive the take-up shaft to rotate.

4. The coating and shaping device for eliminating the edge effect of electroplating on steel strips as described in claim 3, characterized in that, The fixing frame includes: Support bracket; and The mounting bracket is slidably connected to the support bracket along the third path, the mounting bracket having the winding space, and the third path being perpendicular to the first path and the second path.

5. The coating and shaping device for eliminating the edge effect of electroplating on steel strips as described in claim 4, characterized in that, The winding mechanism further includes an adjustment driver connected to the mounting bracket, the adjustment driver being used to drive the mounting bracket to move along the third path.

6. The coating and shaping device for eliminating the edge effect of electroplating on steel strips as described in claim 5, characterized in that, The winding mechanism also includes a tension detector located on the winding shaft. The tension detector and the adjustment driver are respectively communicatively connected to the controller. The tension detector is used to detect the tension generated by the steel strip.

7. The coating and shaping device for eliminating the edge effect of electroplating on steel strips as described in claim 1, characterized in that, The shaping assembly also includes an elastic buffer layer disposed within the shaping groove, the elastic buffer layer being used to achieve flexible contact with the steel strip.

8. The coating and shaping device for eliminating the edge effect of electroplating on steel strips as described in claim 1, characterized in that, The detection element is a miniature pressure sensor, and the shaping assembly also includes an elastic element disposed at the detection end of the miniature pressure sensor, the elastic element abutting against the edge of the steel strip along the first path.

9. The coating and shaping device for eliminating the edge effect of electroplating on steel strips as described in claim 1, characterized in that, The detection device is a laser displacement sensor, and multiple laser displacement sensors are distributed at equal intervals along the second path.

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