A surface treatment device for galvanized square tube production

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By using a corrective structure and guiding components in the production of galvanized square tubes, the problem of abnormal surface roughness caused by tube misalignment was solved, achieving simultaneous grinding of all four sides and uniform surface quality, thus improving the galvanizing effect.

CN224526846UActive Publication Date: 2026-07-21HUBEI XINHAISHUN BUILDING MATERIALS TECH CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: HUBEI XINHAISHUN BUILDING MATERIALS TECH CO LTD
Filing Date: 2025-08-15
Publication Date: 2026-07-21

AI Technical Summary

Technical Problem

During the production of galvanized square tubes, vibration during transportation can cause the tubes to shift, resulting in one side preferentially contacting the wire wheel. This leads to excessively long grinding time, abnormally high surface roughness, and even wear down the substrate beneath the oxide layer, causing localized thinning of the wall thickness and excessive zinc layer buildup.

Method used

The device employs a correction structure and guiding components. It uses an electric push rod to drive a rack and gear transmission to synchronously adjust the position of the two correction components, so that the four sides of the square tube make synchronous contact with the wire wheel. The elasticity and rotation of the rubber roller reduce frictional resistance and prevent surface scratches.

Benefits of technology

This process enables simultaneous grinding of all four sides of the square tube, avoiding excessive grinding in certain areas and leaving impurities, ensuring uniform surface quality, reducing the risk of wear and zinc layer buildup, and improving galvanizing quality.

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Abstract

The utility model relates to a kind of surface treatment devices for galvanized square tube production, including setting on the surface treatment device and feeding table of polishing chamber, the feeding table is provided with the correction structure for guiding correction galvanized square tube position on feeding table, the correction structure includes two correction components symmetrically distributed and set on the feeding table.The surface treatment device for galvanized square tube production, through the electric push rod telescoping of control cabinet, drive one side rack to slide along feeding table, one side rack moves through gear drive to drive the reverse synchronous movement of the other side rack, so that two correction components are synchronously close or far away, form centering adjustment force, so as to reach the position correction of square tube, ensure that square tube four side surface and wire wheel synchronous contact, avoid local excessive polishing or impurity residue, when rubber roller contacts square tube, both utilize the elastic of rubber to adhere square tube surface and limit deviation, and because of self rotation reduce the obstruction to feeding, simultaneously avoid scratching square tube surface.

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Description

Technical Field

[0001] This utility model relates to the field of galvanized square tube production technology, specifically to a surface treatment device for galvanized square tube production. Background Technology

[0002] Galvanized square tube is a type of steel with a galvanized anti-corrosion layer formed on the surface of a square cross-section steel tube. It is widely used in building structures, machinery manufacturing, municipal engineering and other fields. Its production process mainly includes raw material preparation, forming and welding, pretreatment, galvanizing and posttreatment. Among them, the wire wheel grinding treatment in the pretreatment stage is one of the key steps to prepare for subsequent galvanizing. It mainly removes impurities that affect the galvanizing quality through the friction between the wire wheel and the surface of the square tube.

[0003] In the current technology, the welding slag, oxide scale, oil stains and burrs generated during the forming and welding process of square tubes are removed by friction between the rotating steel wire wheel in the surface treatment device and the surface of the square tube, thereby using rigid friction to remove them and avoid these impurities from causing problems such as incomplete galvanization, blistering or insufficient adhesion of the zinc coating. In practical use, multiple sets of steel wire wheels are used to simultaneously contact and rotate the square tube from all four sides for grinding. However, due to the vibration of the square tube during transportation, the square tube shifts, causing one side of the square tube to contact the rotating steel wire wheels first. This results in a longer grinding time for the first contact surface, leading to abnormally high surface roughness. It may even wear down the substrate under the oxide layer on the surface of the square tube, causing local wall thinning. As a result, during subsequent galvanizing, the zinc layer on the surface with excessive roughness will accumulate too thickly. Therefore, a surface treatment device for the production of galvanized square tubes is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a surface treatment device for the production of galvanized square tubes. It has the advantage of facilitating the correction of the square tube's position and solves the problem of simultaneous contact and rotation grinding from all four sides of the square tube using multiple sets of steel wire wheels. However, due to vibration during transportation, the square tube shifts, causing one side of the square tube to preferentially contact the rotating steel wire wheels. This results in a longer grinding time for the first contact surface, leading to abnormally high surface roughness and even abrasion of the substrate beneath the oxide layer on the square tube's surface, causing localized wall thinning. Consequently, during subsequent galvanizing, the zinc layer on the excessively rough surface accumulates to an excessively thick thickness.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a surface treatment device for the production of galvanized square tubes, comprising a grinding chamber and a feeding table disposed on the surface treatment device, wherein the feeding table is provided with a correction structure for guiding and correcting the position of the galvanized square tubes on the feeding table; The correction structure includes two correction components that are symmetrically distributed on the feeding platform. Each of the two correction components is equipped with a connecting component. The feeding platform is equipped with a control console for controlling the movement of the two connecting components. Each of the two correction components is equipped with a guide component for guiding the galvanized square tube. The corrective component includes a rectangular frame, inside which several rubber rollers for contacting the galvanized square tube are rotatably mounted, and a connecting frame connected to the connecting component is fixedly mounted on the rectangular frame. The connecting component includes a connecting plate fixedly connected to the connecting frame, and a rack slidably connected to the feeding table is fixedly installed on the connecting plate, with the rack and the connecting plate forming an L-shape. The control console includes a mounting plate fixedly installed on the feeding platform. A gear that meshes with a rack is rotatably mounted on the mounting plate, and the two connecting parts are symmetrical about the central axis of the gear. An electric push rod with a telescopic end fixedly connected to one side of the rack is fixedly mounted on the mounting plate.

[0006] Furthermore, the guiding component includes a guide plate, which is hinged to a rectangular frame on the same side. A connector is hinged to the other end of the guide plate, and the connector is slidably connected to the feeding table.

[0007] Furthermore, the feeding platform has two symmetrically distributed anti-detachment grooves, and the T-shaped end of the connector extends through the anti-detachment groove, with the anti-detachment groove and the T-shaped end of the connector being slidably connected.

[0008] Furthermore, a reinforcing plate is fixedly installed at the angle between the rack and the connecting plate.

[0009] Furthermore, the mounting plate has two symmetrically distributed limiting grooves, and a limiting block is fixedly installed at the bottom of the rack, with the limiting block slidably connected to the inner wall of the limiting groove.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The surface treatment device used for the production of galvanized square tubes uses an electric push rod on the control console to extend and retract, which drives one side rack to slide along the feeding table. The movement of one side rack drives the other side rack to move in the opposite direction synchronously through gear transmission, so that the two correction components move closer or further away at the same time, forming a centering adjustment force, thereby achieving the position correction of the square tube and ensuring that the four sides of the square tube are in synchronous contact with the wire wheel, avoiding local over-grinding or impurity residue. 2. The surface treatment device for galvanized square tube production has a rotating rubber roller installed in the rectangular frame of the correction component. When in contact with the square tube, the rubber elasticity adheres to the surface of the square tube to limit the deviation, and the rotation of the roller itself reduces the obstruction to the feeding, while avoiding scratching the surface of the square tube. 3. The surface treatment device used for the production of galvanized square tubes has a guide plate in the guide component that guides the square tubes to be initially aligned in advance, reducing the adjustment pressure of the correction structure; Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an enlarged view of the structural correction structure of this utility model; Figure 3 This is a schematic diagram of the structural correction component and the guiding component of this utility model; Figure 4 This is a schematic diagram of the control console and connecting components of this utility model; Figure 5 This is an enlarged view of the structural connection component of this utility model.

[0012] In the diagram: 1. Surface treatment device; 2. Feeding table; 21. Anti-detachment groove; 3. Correction structure; 31. Correction component; 311. Rectangular frame; 312. Rubber roller; 313. Connecting frame; 32. Connecting component; 321. Connecting plate; 322. Rack; 323. Reinforcing plate; 324. Limiting block; 33. Control console; 331. Mounting plate; 332. Gear; 333. Electric push rod; 334. Limiting groove; 34. Guide component; 341. Guide plate; 342. Connecting piece. Detailed Implementation

[0013] 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.

[0014] Example 1: Please refer to Figure 1-5 The surface treatment device for producing galvanized square tubes in this embodiment includes a grinding chamber 1 and a feeding table 2 disposed on the surface treatment device. The feeding table 2 is provided with a correction structure 3 for guiding and correcting the position of the galvanized square tubes on the feeding table 2.

[0015] Example 2: Please refer to Figure 1-5 Based on Embodiment 1, the correction structure 3 includes two correction components 31 that are symmetrically distributed on the feeding table 2. Each correction component 31 is equipped with a connecting component 32. The feeding table 2 is equipped with a control console 33 for controlling the movement of the two connecting components 32. Each correction component 31 is equipped with a guide component 34 for guiding the galvanized square tube. The correction component 31 includes a rectangular frame 311, and several rubber rollers 312 for contacting the galvanized square tube are rotatably mounted inside the rectangular frame 311. A connecting frame 313 connected to the connecting component 32 is fixedly mounted on the rectangular frame 311. The rotation design of the rubber rollers 312 reduces frictional resistance, and the rubber material can avoid scratching the surface of the square tube, thus balancing correction accuracy, conveying efficiency and protection of the square tube surface. The connecting component 32 includes a connecting plate 321 fixedly connected to the connecting frame 313. A rack 322 slidably connected to the feeding table 2 is fixedly installed on the connecting plate 321, and the rack 322 and the connecting plate 321 are L-shaped. The control console 33 includes a mounting plate 331 fixedly installed on the feeding table 2. A gear 332 that meshes with a rack 322 is rotatably mounted on the mounting plate 331. The two connecting parts 32 are symmetrical about the central axis of the gear 332. An electric push rod 333 with a telescopic end fixedly connected to one side of the rack 322 is fixedly installed on the mounting plate 331. The symmetrical transmission of the gear 332 and the rack 322 causes the two correcting parts 31 to move synchronously in opposite directions, ensuring that the square tube is always in the center position and avoiding preferential contact of the wire wheel on one side.

[0016] A reinforcing plate 323 is fixedly installed at the angle between the rack 322 and the connecting plate 321. The reinforcing plate 323 at the angle between the rack 322 and the connecting plate 321 disperses stress through a triangular stabilizing structure, enhances the connection strength, avoids deformation or breakage after long-term use, ensures that the rubber roller 312 can stably apply the corrective force, and improves the durability of the connecting component 32.

[0017] In addition, two symmetrically distributed limiting grooves 334 are provided on the mounting plate 331. A limiting block 324 is fixedly installed at the bottom of the rack 322, and the limiting block 324 is slidably connected to the inner wall of the limiting groove 334. The limiting groove 334 of the mounting plate 331 and the limiting block 324 at the bottom of the rack 322 slide in a sliding fit, restricting the rack 322 to slide only in a straight line, preventing the rack 322 from deviating or disengaging from the gear 332, ensuring transmission accuracy, and ensuring that the rubber rollers 312 of the two correction components 31 contact the square tube synchronously, further reducing the deviation of the square tube.

[0018] Using the above technical solution, the electric push rod 333 of the control console 33 is started, driving one side rack 322 to slide along the feeding table 2. Since the two racks 322 mesh with the same gear 332 and are symmetrical about the central axis of the gear 332, the movement of one side rack 322 drives the other side rack 322 to move synchronously in the opposite direction through the gear 332 transmission, so that the two correction components 31 move synchronously, forming a centering adjustment force, thereby correcting the position of the square tube. The rectangular frame 311 of the correction component 31 is equipped with a rotating rubber roller 312. When it contacts the square tube, it uses the elasticity of the rubber to adhere to the surface of the square tube to limit the offset, and its own rotation reduces the obstruction to the feeding, while avoiding scratching the surface of the square tube.

[0019] Example 3: Please refer to Figure 1-5 Based on Embodiment 2, the guide component 34 includes a guide plate 341, which is hinged to the rectangular frame 311 on the same side. The other end of the guide plate 341 is hinged to a connector 342, which is slidably connected to the feeding table 2. The guide plate 341 is hinged to the rectangular frame 311 and slidably connected to the feeding table 2 through the connector 342. This allows for adaptive adjustment of the square tube width angle, enabling universal guidance for square tubes of different specifications without manual intervention. The pre-guiding effect reduces the adjustment pressure of the rubber roller 312 in the correction component 31, thereby improving the correction efficiency.

[0020] The feeding platform 2 has two symmetrically distributed anti-detachment grooves 21, and the T-shaped end of the connector 342 extends into the anti-detachment groove 21. The anti-detachment groove 21 and the T-shaped end of the connector 342 are slidably connected. The anti-detachment groove 21 of the feeding platform 2 and the T-shaped end of the connector 342 are slidably engaged to restrict the movement trajectory of the connector 342, prevent the guide plate 341 from falling off under force, ensure the structural stability of the guide component 34, reduce friction through sliding connection, avoid jamming when the guide plate 341 is adjusted, extend the service life of the component, and indirectly ensure the correction effect of the rubber roller 312.

[0021] Using the above technical solution, the feeding table 2 conveys the square tube to the inlet of the grinding chamber 1. The square tube first contacts the guide plate 341 of the guide component 34. The guide plate 341 adjusts its angle adaptively through the hinge and the sliding of the connector 342, initially guiding the square tube to the inlet of the correction structure 3, guiding the square tube to be initially centered in advance, and reducing the adjustment pressure of the correction structure 3.

[0022] The working principle of the above embodiments is as follows: In use, the surface treatment device for galvanized square tube production delivers the square tube to the inlet of the grinding chamber 1 via the feeding table 2. The square tube first contacts the guide plate 341 of the guide component 34. The guide plate 341 adjusts its angle adaptively through the hinge and the sliding of the connector 342, initially guiding the square tube to the inlet of the correction structure 3, thus guiding the square tube to be initially aligned in advance and reducing the adjustment pressure of the correction structure 3. When the electric push rod 333 of the control console 33 is started, it drives one side rack 322 to slide along the feeding table 2. Since the two racks 322 mesh with the same gear 332 and are symmetrical about the central axis of the gear 332, the movement of one side rack 322 drives the other side rack 322 to move in the opposite direction synchronously through the gear 332 transmission, so that the two correction components 31 move synchronously, forming a centering adjustment force, thereby correcting the position of the square tube. The rectangular frame 311 of the correction component 31 contains a rotating rubber roller 312. When it comes into contact with the square tube, the elasticity of the rubber adheres to the surface of the square tube to limit the deviation. The rotation of the roller itself reduces the obstruction to the feeding and avoids scratching the surface of the square tube.

[0023] 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] 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 surface treatment apparatus for the production of galvanized square tubes, comprising a grinding chamber (1) and a feeding table (2) disposed on the surface treatment apparatus, characterized in that: The feeding platform (2) is provided with a correction structure (3) for guiding and correcting the position of the galvanized square tube on the feeding platform (2). The correction structure (3) includes two correction components (31) arranged on the feeding table (2) and symmetrically distributed. Each of the two correction components (31) is equipped with a connecting component (32). The feeding table (2) is provided with a control console (33) for controlling the movement of the two connecting components (32). Each of the two correction components (31) is provided with a guide component (34) for guiding the galvanized square tube. The corrective component (31) includes a rectangular frame (311), and a plurality of rubber rollers (312) for contacting the galvanized square tube are rotatably mounted inside the rectangular frame (311). A connecting frame (313) connected to the connecting component (32) is fixedly mounted on the rectangular frame (311). The connecting component (32) includes a connecting plate (321) fixedly connected to the connecting frame (313), and a rack (322) slidably connected to the feeding table (2) is fixedly installed on the connecting plate (321), and the rack (322) and the connecting plate (321) are L-shaped; The control console (33) includes a mounting plate (331) fixedly installed on the feeding table (2). A gear (332) meshing with a rack (322) is rotatably mounted on the mounting plate (331), and the two connecting parts (32) are symmetrical about the central axis of the gear (332). An electric push rod (333) with a telescopic end fixedly connected to one side of the rack (322) is fixedly mounted on the mounting plate (331).

2. The surface treatment device for the production of galvanized square tubes according to claim 1, characterized in that: The guide component (34) includes a guide plate (341), and the guide plate (341) is hinged to the rectangular frame (311) on the same side. The other end of the guide plate (341) is hinged to a connector (342), and the connector (342) is slidably connected to the feeding table (2).

3. The surface treatment device for producing galvanized square tubes according to claim 2, characterized in that: The feeding platform (2) has two symmetrically distributed anti-detachment grooves (21), and the T-shaped end of the connector (342) extends into the anti-detachment groove (21), and the anti-detachment groove (21) and the T-shaped end of the connector (342) are slidably connected.

4. The surface treatment device for producing galvanized square tubes according to claim 1, characterized in that: A reinforcing plate (323) is fixedly installed at the angle between the rack (322) and the connecting plate (321).

5. A surface treatment device for the production of galvanized square tubes according to claim 1, characterized in that: The mounting plate (331) has two symmetrically distributed limiting grooves (334). The bottom of the rack (322) is fixedly installed with a limiting block (324), and the limiting block (324) is slidably connected to the inner wall of the limiting groove (334).