A hook device for hot-dip galvanizing surface treatment and its use method

Abstract

The present invention relates to the technical field of hangers, and specifically to a hook device for hot-dip galvanizing surface treatment, comprising a connecting frame, a connecting column rotatably connected to the connecting frame, a connecting disk fixedly sleeved on the outer wall of the connecting column, a hook for hanging a metal workpiece provided on the lower end surface of the connecting disk, a driving assembly for driving the hook to rotate to improve the uniformity of galvanizing the metal workpiece, and a limiting assembly for preventing the metal workpiece on the hook from swinging and causing collision when the connecting disk rotates, provided on the circumferential outer wall of the lower end of the connecting column. The present invention can clamp and limit the workpiece hung on the hook under the action of the limiting assembly, so that when the workpiece rotates with the connecting column, the zinc liquid can fully adhere to the surface of the workpiece, while avoiding damage to the workpiece caused by collision between the workpieces due to swinging, thereby improving the surface treatment effect of the workpiece.

Description

Technical Field

[0001] The invention relates to a hook device, in particular to a hook device for hot-dip galvanizing surface treatment and a use method thereof, belonging to the technical field of hangers. Background Art

[0002] Hot-dip galvanizing is a surface treatment process in metal processing. It mainly involves immersing the metal workpiece in molten zinc liquid, causing the molten metal to react with the iron matrix to produce an alloy layer, thereby combining the matrix and the coating. It is widely used in metal anti-corrosion treatment.

[0003] In order to ensure that the zinc liquid adheres evenly and completely to the surface of the metal workpiece during galvanizing, the hanger on which the metal workpiece is suspended is usually swung or rotated so that the zinc liquid can adhere evenly to the surface of the metal workpiece in a dynamic manner, thereby improving the surface treatment effect. However, in actual use, when the suspended metal workpiece is swung under force, collisions may occur between adjacent metal workpieces, resulting in damage between the metal workpieces and affecting the processing quality.

[0004] Therefore, it is urgent to improve the hook device for hot-dip galvanizing surface treatment to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a hook device for hot-dip galvanizing surface treatment and a method of using the same, which can clamp and limit the workpiece hung on the hook under the action of a limiting component, so that the workpiece can follow the rotation of the connecting column so that the zinc liquid can fully adhere to the surface of the workpiece, while avoiding damage to the workpiece caused by collision between the workpieces due to swinging, thereby improving the surface treatment effect of the workpiece.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the present invention include: a hook device for hot-dip galvanizing surface treatment, comprising a connecting frame, a connecting column rotatably connected to the connecting frame, a connecting disk fixedly sleeved on the outer wall of the connecting column, a hook for hanging a metal workpiece on the lower end surface of the connecting disk, a driving component for driving the hook to rotate to improve the uniformity of galvanizing the metal workpiece, and a limiting component for preventing the metal workpiece on the hook from swinging and causing collision when the connecting disk rotates.

[0007] The limiting assembly includes a receiving plate, a receiving platform provided on the upper end of the receiving plate, an adjusting rod screwed with the receiving platform, two cross frames and a wedge block, one end of the wedge block is fixedly connected to a vertical plate, the vertical plate is sleeved on the outer side of the adjusting rod and is rotatably connected to the adjusting rod, a connecting shaft is provided above the end of the receiving plate away from the receiving platform, the connecting shaft passes through the two cross frames and is rotatably connected to the two cross frames;

[0008] The driving assembly includes a gear sleeved on the outer wall of the connecting column and a rack meshing with the gear. The rack is slidably connected to the connecting frame. A hydraulic telescopic rod is provided at one end of the connecting frame. The movable end of the hydraulic telescopic rod is fixedly connected to one end of the rack.

[0009] Preferably, the two cross frames are provided with clamping seats opposite to each other at one end away from the receiving platform, and the opposite sides of the two clamping seats are arc-shaped. When the two cross frames drive the two clamping seats to move relative to each other to clamp the workpiece, line contact is generated between the clamping seats and the workpiece.

[0010] Preferably, the clamping seat includes a solid support portion with a semicircular cross-section and a hollow liquid inlet portion arranged above the support portion. The upper end of the liquid inlet portion is connected to a liquid inlet hole, and the outer wall of the liquid inlet portion on the side in contact with the workpiece is connected to a liquid outlet hole.

[0011] Preferably, the connecting column is provided with an anti-hooking component to prevent the workpiece on the hook from falling off during rotation. The anti-hooking component includes a positioning plate movably mounted on the outer wall of the connecting column and an adjusting handle rotatably connected to the positioning plate. The adjusting handle is threadedly connected to the connecting column.

[0012] Preferably, a limiting groove is provided on an end surface of the hook away from the connecting plate.

[0013] Preferably, a sliding groove is provided on the circumferential outer wall of the lower end of the connecting column, and the limiting assembly is slidably connected to the outer wall of the connecting column through the sliding groove.

[0014] Preferably, there are multiple groups of the limiting components, and the multiple groups of the limiting components are equidistantly arranged around the central axis of the connecting column, and the multiple groups of the limiting components correspond one-to-one to the multiple hooks.

[0015] Preferably, the clamping seat is made of a metal material resistant to hydrochloric acid corrosion, such as Hastelloy alloy, nickel-molybdenum alloy, etc.

[0016] Preferably, the upper ends of the connecting frames are each provided with a lifting lug, and the lifting lug is rotatably connected to the upper end surface of the connecting frame.

[0017] A method for using a hook device for hot-dip galvanizing surface treatment comprises the following steps:

[0018] S1: First, hang the workpiece on the hook, rotate the adjustment rod to drive the wedge block to contact the tail end of the cross frame, and then make the two cross frames swing around the connecting axis, driving the two clamping seats to clamp the workpiece;

[0019] S2: Then rotate the adjustment handle to drive the positioning plate to move downward, so that the lower edge of the positioning plate is stuck in the limiting groove of the hook to prevent the workpiece from falling off the hook;

[0020] S3: Finally, under the action of the driving component, the connecting column drives the workpiece to rotate, so that the zinc liquid is fully and evenly attached to the surface of the workpiece, and under the action of the limiting component, the workpieces are prevented from colliding with each other when following the rotation of the connecting column.

[0021] The present invention has at least the following beneficial effects:

[0022] 1. The workpiece hanging on the hook is clamped and limited by the limit assembly, so that the workpiece can follow the rotation of the connecting column so that the zinc liquid can fully adhere to the surface of the workpiece. At the same time, it can avoid the damage of the workpiece caused by the impact between the workpieces due to the swing, and improve the surface treatment effect of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 A schematic diagram of the isometric structure provided by the present invention;

[0025] Figure 2 A schematic diagram of the structure of the limit assembly provided by the present invention;

[0026] Figure 3 A schematic diagram of the cross-sectional structure of the clamping seat provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting column provided by the present invention.

[0028] In the figure, 1. connecting frame; 101. connecting column; 102. connecting plate; 103. hook; 2. driving assembly; 201. gear; 202. rack; 203. hydraulic telescopic rod; 3. limiting assembly; 301. receiving plate; 302. receiving platform; 303. adjusting rod; 304. cross frame; 305. wedge block; 306. vertical plate; 307. connecting shaft; 4. clamping seat; 401. supporting part; 402. liquid inlet part; 403. liquid inlet hole; 404. liquid outlet hole; 5. anti-unhooking assembly; 501. positioning plate; 502. adjusting handle; 503. limiting groove; 6. sliding groove; 7. lifting ear. DETAILED DESCRIPTION

[0029] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0030] like Figures 1-4 As shown, the hook 103 device for hot-dip galvanizing surface treatment provided in this embodiment includes a connecting frame 1, and the upper end of the connecting frame 1 is provided with a lifting ear 7, and the lifting ear 7 is rotatably connected to the upper end surface of the connecting frame 1. The connecting frame 1 can be connected by hanging on the lifting ear 7 through a crane, so as to facilitate the lifting or lowering of the connecting frame 1 from the zinc liquid. A connecting column 101 is rotatably connected to the connecting frame 1, and a connecting disk 102 is fixedly sleeved on the outer wall of the connecting column 101. A hook 103 for hanging a metal workpiece is provided on the lower end surface of the connecting disk 102. The connecting frame 1 is provided with a device for driving the hook 103 to rotate to improve the plating of the metal workpiece. The zinc uniformity drive assembly 2 includes a gear 201 sleeved on the outer wall of the connecting column 101 and a rack 202 meshing with the gear 201. The rack 202 is slidably connected to the connecting frame 1. A hydraulic telescopic rod 203 is provided at one end of the connecting frame 1. The movable end of the hydraulic telescopic rod 203 is fixedly connected to one end of the rack 202. The hydraulic telescopic rod 203 drives the rack 202 to reciprocate, thereby causing the rack 202 to drive the gear 201 to rotate, thereby driving the connecting column 101 and the connecting plate 102 to rotate, so that the hook 103 drives the workpiece to rotate, so that the zinc liquid fully adheres to the surface of the workpiece;

[0031] Further, such as Figure 2As shown, a limit assembly 3 is provided on the circumferential outer wall of the lower end of the connecting column 101 to prevent the metal workpiece on the hook 103 from swinging and causing collision when the connecting disk 102 rotates. The limit assembly 3 includes a receiving plate 301, a receiving platform 302 provided on the upper end of the receiving plate 301, an adjusting rod 303 threadedly connected to the receiving platform 302, two cross-arranged cross frames 304 and a wedge block 305. One end of the wedge block 305 is fixedly connected to a vertical plate 306. The vertical plate 306 is sleeved on the outside of the adjusting rod 303 and is connected to the adjusting rod 303 is rotatably connected. A connecting shaft 307 is provided above the end of the receiving plate 301 away from the receiving platform 302. The connecting shaft 307 passes through the two cross frames 304 and is rotatably connected to the two cross frames 304. By rotating the adjusting rod 303 to move away from the receiving platform 302, the adjusting rod 303 can drive the wedge block 305 to move under the action of the vertical plate 306. The wedge block 305 contacts the tail ends of the two cross frames 304, so that the cross frames 304 swing around the connecting shaft 307 to clamp and limit the workpiece.

[0032] Further, if Figure 1 As shown, there are multiple groups of limit assemblies 3, and the multiple groups of limit assemblies 3 are equidistantly arranged around the central axis of the connecting column 101, and the multiple groups of limit assemblies 3 correspond one-to-one to the multiple hooks 103, which can clamp and limit multiple workpieces, thereby improving work efficiency;

[0033] Furthermore, if Figure 4 As shown, a sliding groove 6 is provided on the circumferential outer wall of the lower end of the connecting column 101. The limiting assembly 3 is slidably connected to the outer wall of the connecting column 101 through the sliding groove 6. The height of the limiting assembly 3 can be adjusted, so that it can be suitable for limiting workpieces of different sizes.

[0034] The two cross frames 304 are provided with clamping seats 4 at one end away from the receiving platform 302, and the opposite sides of the two clamping seats 4 are arranged in an arc shape. When the two cross frames 304 drive the two clamping seats 4 to move relative to each other to clamp the workpiece, line contact is generated between the clamping seats 4 and the workpiece. The contact between the clamping seats 4 and the workpiece surface can reduce the contact area between the cross frames 304 and the workpiece, thereby avoiding a large contact area between the cross frames 304 and the workpiece that affects the uniformity of zinc liquid adhesion.

[0035] Going further, Figure 3As shown, the clamping seat 4 includes a solid support portion 401 with a semicircular cross-section and a hollow liquid inlet portion 402 provided above the support portion 401. The upper end of the liquid inlet portion 402 is connected to a liquid inlet hole 403. When the clamping seat 4 is immersed in the zinc liquid, the zinc liquid can first enter through the liquid inlet hole 403. Under the action of the support portion 401, the zinc liquid can be prevented from remaining in the clamping seat 4. The outer wall of the liquid inlet portion 402 on the side in contact with the workpiece is connected to a liquid outlet hole 404. The zinc liquid in the liquid inlet portion 402 flows out through the liquid outlet hole 404 to the contact surface between the clamping seat 4 and the workpiece, further improving the uniformity of the zinc liquid adhering to the workpiece.

[0036] Furthermore, the clamping seat 4 is made of a metal material resistant to hydrochloric acid corrosion, such as Hastelloy, nickel-molybdenum alloy, etc., which can prevent zinc liquid from corroding the inside of the clamping seat 4, thereby increasing the service life of the clamping seat 4;

[0037] Further, if Figure 4 As shown, the connecting column 101 is provided with an anti-unhooking component 5 for preventing the workpiece on the hook 103 from falling off during rotation. The anti-unhooking component 5 includes a positioning plate 501 movably sleeved on the outer wall of the connecting column 101 and an adjusting grip 502 rotatably connected to the positioning plate 501. The adjusting grip 502 is threadedly screwed to the connecting column 101. By rotating the adjusting grip 502 to drive the positioning plate 501 to move downward, the lower end edge of the positioning plate 501 can be stuck on the upper end of the hook 103, thereby blocking the opening of the hook 103 and preventing the workpiece from falling off the hook 103.

[0038] A limiting groove 503 is formed on the end surface of the hook 103 away from the connecting plate 102. When the positioning plate 501 moves downward, its lower edge can be stuck in the limiting groove 503, thereby making the connection between the limiting plate and the hook tighter.

[0039] like Figures 1-4 As shown, the method for using a hook 103 device for hot-dip galvanizing surface treatment provided in this embodiment includes the following steps:

[0040] S1: First, hang the workpiece on the hook 103, rotate the adjustment rod 303 to drive the wedge block 305 to contact the tail end of the cross frame 304, and then make the two cross frames 304 swing around the connecting shaft 307 as the center, driving the two clamping seats 4 to clamp the workpiece;

[0041] S2: Then, the adjusting handle 502 is rotated to drive the positioning plate 501 to move downward, so that the lower edge of the positioning plate 501 is stuck in the limiting groove 503 of the hook 103 to prevent the workpiece from falling off the hook 103;

[0042] S3: Finally, under the action of the driving component 2, the connecting column 101 drives the workpiece to rotate, so that the zinc liquid is fully and evenly attached to the surface of the workpiece, and under the action of the limiting component 3, the workpieces are prevented from colliding with each other when following the rotation of the connecting column 101.

[0043] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0044] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0045] The foregoing description shows and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the inventive concept described herein by the teachings above or by techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be within the scope of the appended claims.

Claims

1. A hook device for hot-dip galvanizing surface treatment, comprising a connecting frame (1), a connecting column (101) rotatably connected to the connecting frame (1), a connecting plate (102) fixedly sleeved on the outer wall of the connecting column (101), and a hook (103) for hanging a metal workpiece on the lower end surface of the connecting plate (102), characterized in that: The connecting frame (1) is provided with a driving assembly (2) for driving the hook (103) to rotate to improve the uniformity of galvanizing the metal workpiece, and the circumferential outer wall of the lower end of the connecting column (101) is provided with a limiting assembly (3) for preventing the metal workpiece on the hook (103) from swinging and causing collision when the connecting plate (102) rotates; The limiting assembly (3) includes a receiving plate (301), a receiving platform (302) provided at the upper end of the receiving plate (301), an adjusting rod (303) screwed together with the receiving platform (302), two cross frames (304) arranged crosswise, and a wedge block (305), one end of the wedge block (305) is fixedly connected to a vertical plate (306), the vertical plate (306) is sleeved on the outer side of the adjusting rod (303) and is rotatably connected to the adjusting rod (303), a connecting shaft (307) is provided above one end of the receiving plate (301) away from the receiving platform (302), the connecting shaft (307) passes through the two cross frames (304) and is rotatably connected to the two cross frames (304); The driving assembly (2) comprises a gear (201) sleeved on the outer wall of the connecting column (101) and a rack (202) meshing with the gear (201), the rack (202) being slidably connected to the connecting frame (1), and a hydraulic telescopic rod (203) being provided at one end of the connecting frame (1), the movable end of the hydraulic telescopic rod (203) being fixedly connected to one end of the rack (202).

2. The hook device for hot-dip galvanizing surface treatment according to claim 1, characterized in that: A clamping seat (4) is provided opposite to one end of the two cross frames (304) away from the receiving platform (302), and the opposite sides of the two clamping seats (4) are arranged in an arc shape. When the two cross frames (304) drive the two clamping seats (4) to move relative to each other to clamp the workpiece, line contact is generated between the clamping seat (4) and the workpiece.

3. The hook device for hot-dip galvanizing surface treatment according to claim 2, characterized in that: The clamping seat (4) comprises a solid supporting portion (401) with a semicircular cross section and a hollow liquid inlet portion (402) provided above the supporting portion (401); a liquid inlet hole (403) is provided at the upper end of the liquid inlet portion (402); and a liquid outlet hole (404) is provided on the outer wall of the liquid inlet portion (402) on the side in contact with the workpiece.

4. The hook device for hot-dip galvanizing surface treatment according to claim 1, characterized in that: The connecting column (101) is provided with an anti-hooking assembly (5) for preventing a workpiece on the hook (103) from falling off during rotation. The anti-hooking assembly (5) comprises a positioning plate (501) movably sleeved on the outer wall of the connecting column (101) and an adjusting handle (502) rotatably connected to the positioning plate (501). The adjusting handle (502) is threadedly connected to the connecting column (101).

5. The hook device for hot-dip galvanizing surface treatment according to claim 4, characterized in that: A limiting groove (503) is provided on an end surface of the hook (103) away from the connecting plate (102).

6. The hook device for hot-dip galvanizing surface treatment according to claim 1, characterized in that: A sliding groove (6) is provided on the circumferential outer wall of the lower end of the connecting column (101), and the limiting assembly (3) is slidably connected to the outer wall of the connecting column (101) via the sliding groove (6).

7. The hook device for hot-dip galvanizing surface treatment according to claim 1, characterized in that: There are multiple groups of the limiting components (3), and the multiple groups of the limiting components (3) are equidistantly arranged around the central axis of the connecting column (101), and the multiple groups of the limiting components (3) correspond one-to-one to the multiple hooks (103).

8. The hook device for hot-dip galvanizing surface treatment according to claim 2, characterized in that: The clamping seat (4) is made of a metal material such as Hastelloy or nickel-molybdenum alloy that is resistant to hydrochloric acid corrosion.

9. The hook device for hot-dip galvanizing surface treatment according to claim 8, characterized in that: The upper end of the connecting frame (1) is provided with a lifting lug (7), and the lifting lug (7) is rotatably connected to the upper end surface of the connecting frame (1).

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