A square tube hot galvanizing device
By adjusting and designing the clamping components, the problem of square and rectangular tubes shaking during hot-dip galvanizing was solved, achieving stable clamping and odor masking, thus improving production safety and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANDAN ZHENGDA PIPE MFG CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-05
AI Technical Summary
In existing hot-dip galvanizing equipment for square and rectangular tubes, the tubes are prone to shaking during the hot-dip galvanizing process due to a lack of effective constraints, leading to unstable production processes and reduced processing quality.
The device employs an adjustment mechanism and clamping assembly. An electric push rod drives a fixing plate to be inserted into the rectangular tube. Combined with the lifting and lowering movement of the threaded rod and threaded hole, it achieves stable clamping and lifting of the rectangular tube, eliminating the need for manual operation. The device also incorporates a moving mechanism and a cover plate to cover the top of the treatment box, reducing odor emissions.
This technology ensures the stability and safety of square and rectangular tubes during the hot-dip galvanizing process, avoids harm to human health, and improves the stability of the production process and the quality of processing.
Smart Images
Figure CN224325394U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot-dip galvanizing technology for square and rectangular tubes, specifically to a hot-dip galvanizing device for square and rectangular tubes. Background Technology
[0002] Square and rectangular tubes are a type of steel pipe with square and rectangular sides, that is, steel pipes with equal or unequal side lengths. They are made from strip steel through a process of rolling. Generally, the strip steel is unpacked, flattened, rolled, and welded to form a round tube, which is then rolled into a square tube and cut to the required length. Nowadays, square and rectangular tubes also need to undergo hot-dip galvanizing after production.
[0003] According to announcement number CN219526757U, a hot-dip galvanizing device for square and rectangular tubes is disclosed, relating to the field of hot-dip galvanizing of square and rectangular tubes. The device includes a galvanizing tank, a slide rail, and a lifting assembly. The slide rail is located above the galvanizing tank and away from it. The lifting assembly is located below the slide rail. A slag scraping mechanism is provided above the galvanizing tank.
[0004] Regarding the above description, the applicant believes the following issues exist:
[0005] During use, if the rectangular tube is directly inserted into the loading rack when fixing it in this device, the two ends of the rectangular tube will lack effective restraint. During the hot-dip galvanizing process, it is very easy for it to fall off due to shaking, which will affect the stability of the production process and the processing quality. Utility Model Content
[0006] The purpose of this invention is to provide a hot-dip galvanizing device for square and rectangular tubes to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a hot-dip galvanizing device for square and rectangular tubes, comprising a processing box and a cover plate, wherein there are two cover plates, the two cover plates are disposed on the top of the processing box, and the inner sides of the two cover plates are provided with circular slots, the left and right sides of the processing box are provided with adjustment mechanisms, and the front and rear sides of the processing box are provided with moving mechanisms.
[0008] The adjustment mechanism includes a lifting assembly and a clamping assembly, wherein the clamping assembly is disposed on the lifting assembly;
[0009] The lifting assembly includes support plates, which are fixedly connected to the left and right sides of the processing box. There are four support plates, arranged in pairs. Long plates are fixedly connected to the inner sides of the support plates on both sides. There are four long plates, arranged in pairs. A square plate is fixedly connected between the long plates on both sides. Connecting rods are fixedly connected to the top ends of the square plate. A movable plate is slidably connected to the surfaces of the two connecting rods. A first motor is fixedly connected to the top center of the movable plate. A threaded rod is fixedly connected to the bottom of the first motor. A connecting plate is rotatably connected to the bottom of the threaded rod. A threaded hole is opened inside the square plate.
[0010] Preferably, the threaded rod surface and the threaded hole are threadedly connected, and the connecting plate is disposed at the bottom of the square plate.
[0011] Preferably, there are two connecting rods, which are arranged on the front and rear sides of the threaded rod. The threaded rod can be raised and lowered, and the moving plate can also slide on the surface of the connecting rod, which facilitates the lifting and lowering of the clamped square and rectangular tubes, and makes it convenient to perform hot-dip galvanizing treatment or to remove them after treatment.
[0012] Preferably, the clamping assembly includes a push button switch, which is fixedly connected to both ends of the top of the connecting plate. Limiting seats are fixedly connected to the front and rear sides of the connecting plate, and there are four limiting seats in pairs. Electric push rods are fixedly connected to the outer sides of the limiting seats on the left and right sides. The electric push rods on the front and rear sides are electrically connected to the push button switch. A mounting plate is fixedly connected to the other side of the electric push rod. A fixing plate is fixedly connected to the bottom of the mounting plates on the front and rear sides. Insert plates are fixedly connected to the inner sides of the fixing plates on the left and right sides. A T-shaped block is fixedly connected to the top of the fixing plate. A first T-shaped groove is fixedly connected to the bottom of the connecting plate.
[0013] Preferably, there are two T-blocks, and the surfaces of the two T-blocks are slidably connected to the inside of the first T-groove. The fixing plate drives the T-blocks to slide in the first T-groove until the fixing plate drives the insert plate to be inserted into the rectangular tube. This facilitates the immersion of the rectangular tube into the molten zinc liquid for a certain period of time, avoiding manual removal and reducing the risk of harm to the human body.
[0014] Preferably, the moving mechanism includes a second T-slot, which is formed on both sides of the top of the processing box. T-plates are fixedly connected to both sides of the bottom of the cover plate. There are four T-plates arranged in pairs. The surfaces of the T-plates are slidably connected to the interior of the second T-slot. Limiting plates are fixedly connected to the front and rear sides of the processing box. There are four limiting plates arranged in pairs. A second motor is fixedly connected to the right side of the right limiting plate. A lead screw is fixedly connected to the left side of the second motor. Moving seats are threaded onto the left and right sides of the lead screw. A long rod is fixedly connected between the left and right limiting plates. A hinge plate is hinged to the top of the moving seat. A mounting block is hinged to the top of the hinge plate. The mounting block and the cover plate are fixedly connected.
[0015] Preferably, there are two lead screws and two long rods, with the long rods positioned at the top of the lead screws.
[0016] Preferably, the lead screw surface and the inside of the limiting plate are rotatably connected, and the thread specifications of the left and right surfaces of the lead screw are the same and the directions are opposite.
[0017] Compared with the prior art, this utility model provides a hot-dip galvanizing device for square and rectangular tubes, which has the following beneficial effects:
[0018] 1. This hot-dip galvanizing device for square and rectangular tubes uses an adjustment mechanism and an electric push rod to drive the mounting plate, which in turn moves the fixing plate. The fixing plate then moves the insertion plate into the square and rectangular tube groove, facilitating the immersion of the tube in molten zinc for a specific time, which is adjusted according to the tube wall thickness, typically from tens of seconds to several minutes. This avoids manual handling and reduces potential harm to the human body. The threaded rod and threaded hole are connected by threads, allowing the threaded rod to move up and down. Simultaneously, the moving plate can slide on the surface of the connecting rod, facilitating the lifting and lowering of the clamped square and rectangular tubes for hot-dip galvanizing or removal after the process.
[0019] 2. The hot-dip galvanizing device for rectangular tubes, through the moving mechanism, allows the mounting block to move the cover plate when the moving seat moves down. At the same time, the cover plate moves the T-shaped plate to slide in the second T-shaped groove, which facilitates the cover plate to cover the top of the processing box. Meanwhile, the round hole groove is set on the surface of the threaded rod, which can cover the odor generated during the hot-dip galvanizing process of the rectangular tube. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.
[0021] Figure 1 This is a perspective view of the overall structure of this utility model;
[0022] Figure 2 This is a structural schematic diagram of the lifting assembly;
[0023] Figure 3 This is a schematic diagram of the clamping assembly.
[0024] Figure 4 This is a schematic diagram of the moving mechanism;
[0025] Figure 5 for Figure 4 A schematic diagram of the structure of the cut-off portion.
[0026] In the diagram: 1. Processing box; 2. Cover plate; 21. Circular slot; 3. Adjustment mechanism; 31. Lifting assembly; 311. Connecting plate; 312. Long plate; 313. Support plate; 314. Square plate; 315. Threaded rod; 316. First motor; 317. Moving plate; 318. Connecting rod; 319. Threaded hole; 32. Clamping assembly; 321. First T-slot; 322. Mounting plate; 323. Fixing plate; 324. Insert plate; 325. Limiting seat; 326. Electric push rod; 327. T-block; 328. Button switch; 4. Moving mechanism; 41. Hinge plate; 42. Moving seat; 43. Lead screw; 44. Limiting plate; 45. Long rod; 46. T-plate; 47. Second T-slot; 48. Mounting block; 49. Second motor. Detailed Implementation
[0027] 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.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] This utility model provides the following technical solution: Example 1
[0030] Combination Figures 1 to 4 A hot-dip galvanizing device for square and rectangular tubes includes a processing box 1 and a cover plate 2. There are two cover plates 2, which are set on the top of the processing box 1. The inner side of the two cover plates 2 is provided with a circular hole groove 21. Adjustment mechanisms 3 are provided on the left and right sides of the processing box 1, and moving mechanisms 4 are provided on the front and rear sides of the processing box 1.
[0031] The adjustment mechanism 3 includes a lifting component 31 and a clamping component 32, with the clamping component 32 disposed on the lifting component 31;
[0032] The lifting assembly 31 includes a support plate 313, which is fixedly connected to the left and right sides of the processing box 1. There are four support plates 313, which are arranged in pairs. Long plates 312 are fixedly connected to the inner side of the support plates 313 on both sides. There are four long plates 312, which are arranged in pairs. A square plate 314 is fixedly connected between the long plates 312 on both sides. Connecting rods 318 are fixedly connected to the top two ends of the square plate 314. A movable plate 317 is slidably connected to the surface of the two connecting rods 318. A first motor 316 is fixedly connected to the top center of the movable plate 317. A threaded rod 315 is fixedly connected to the bottom of the first motor 316. A connecting plate 311 is rotatably connected to the bottom of the threaded rod 315. A threaded hole 319 is opened inside the square plate 314.
[0033] The threaded rod 315 is threaded to the surface and the threaded hole 319. The connecting plate 311 is located at the bottom of the square plate 314. There are two connecting rods 318, which are located on the front and rear sides of the threaded rod 315.
[0034] The clamping assembly 32 includes a push button switch 328, which is fixedly connected to both ends of the top of the connecting plate 311. Limit seats 325 are fixedly connected to the front and rear sides of the connecting plate 311 respectively. There are four limit seats 325, which are arranged in pairs. Electric push rods 326 are fixedly connected to the outer sides of the left and right limit seats 325. The electric push rods 326 on the front and rear sides are electrically connected to the push button switch 328. Mounting plate 322 is fixedly connected to the other side of the electric push rod 326. Fixing plate 323 is fixedly connected to the bottom of the mounting plate 322 on the front and rear sides. Insert plate 324 is fixedly connected to the inner side of the fixing plate 323 on the left and right sides. T-blocks 327 are fixedly connected to the top of the fixing plate 323. A first T-slot 321 is fixedly connected to the bottom of the connecting plate 311. There are two T-blocks 327, and the surfaces of the two T-blocks 327 are slidably connected to the inside of the first T-slot 321.
[0035] Furthermore, the electric push rod 326 drives the mounting plate 322, which in turn drives the fixing plate 323 to move. The fixing plate 323 then drives the insertion plate 324 to be inserted into the rectangular tube, facilitating the immersion of the rectangular tube in the molten zinc for a certain period of time. This avoids manual handling and reduces the risk to human health. The threaded rod 315 and the threaded hole 319 are connected by threads, allowing the threaded rod 315 to move up and down. At the same time, the moving plate 317 can slide on the surface of the connecting rod 318, facilitating the lifting and lowering of the clamped rectangular tube for hot-dip galvanizing or removal after treatment. Example 2
[0036] See Figure 1-5 Furthermore, based on Embodiment 1, the moving mechanism 4 further includes a second T-slot 47, which is opened on both sides of the top of the processing box 1. T-plates 46 are fixedly connected to both sides of the bottom of the cover plate 2. There are four T-plates 46 in total, and they are in pairs. The surface of the T-plates 46 and the interior of the second T-slot 47 are slidably connected. Limiting plates 44 are fixedly connected to the front and rear sides of the processing box 1 respectively. There are four limiting plates 44 in total, and they are in pairs. A second motor 49 is fixedly connected to the right side of the right limiting plate 44. A lead screw 43 is fixedly connected to the left side of the second motor 49. Moving seats 42 are threadedly connected to the left and right sides of the lead screw 43 respectively. A long rod 45 is fixedly connected between the left and right limiting plates 44. A hinge plate 41 is hinged to the top of the moving seat 42. An mounting block 48 is hinged to the top of the hinge plate 41. The mounting block 48 and the cover plate 2 are fixedly connected.
[0037] There are two lead screws 43 and two long rods 45. The long rod 45 is located on the top of the lead screw 43. The surface of the lead screw 43 is rotatably connected to the inside of the limiting plate 44. The thread specifications of the left and right sides of the lead screw 43 are the same and the directions are opposite.
[0038] Furthermore, when the movable seat 42 moves, the mounting block 48 can move the cover plate 2, and at the same time, the cover plate 2 can move the T-shaped plate 46 in the second T-shaped groove 47, so that the cover plate 2 can cover the top of the processing box 1. Meanwhile, the round hole groove 21 is set on the surface of the threaded rod 315, which can cover the odor generated during the hot-dip galvanizing process of the rectangular tube.
[0039] In actual operation, when this device is used to hot-dip galvanize the rectangular tube, molten zinc at a temperature of about 430-480℃ is first injected into the treatment box 1. Since the motors of the two electric push rods 326 are connected in parallel to the same power supply and control switch, the device is started by controlling the push button switch 328. When the electric push rods 326 are running, they can drive the mounting plate 322. The mounting plate 322 drives the fixing plate 323 to move. At the same time, the fixing plate 323 drives the T-shaped block 327 to slide in the first T-shaped groove 321 until the fixing plate 323 drives the insertion plate 324 to be inserted into the rectangular tube. This makes it easy to immerse the rectangular tube in the molten zinc and stay for a certain period of time, which is adjusted according to the tube wall thickness, usually from tens of seconds to several minutes. This avoids manual handling and reduces the risk of harm to the human body.
[0040] When the first motor 316 starts, it drives the threaded rod 315 to rotate. The threaded rod 315 and the threaded hole 319 are connected by threads. At this time, the threaded rod 315 can move up and down. At the same time, the moving plate 317 can also slide on the surface of the connecting rod 318, which makes it easy to lift and lower the clamped square and rectangular tube, and facilitates hot-dip galvanizing or removal after treatment.
[0041] When the second motor 49 starts, it drives the lead screw 43 to rotate. The two moving seats 42 on the left and right can move to the opposite side on the surface of the lead screw 43. When the moving seat 42, the hinge plate 41 and the mounting block 48 are hinged, when the moving seat 42 moves, the mounting block 48 can drive the cover plate 2 to move. At the same time, the cover plate 2 drives the T-shaped plate 46 to slide in the second T-shaped groove 47, so that the cover plate 2 can cover the top of the processing box 1. Meanwhile, the round hole groove 21 is set on the surface of the threaded rod 315, which can cover the odor generated during the hot-dip galvanizing process of the rectangular tube.
[0042] 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.
Claims
1. A hot-dip galvanizing apparatus for square and rectangular tubes, comprising a processing box (1) and a cover plate (2), characterized in that: There are two cover plates (2), and the two cover plates (2) are set on the top of the processing box (1). The inner side of the two cover plates (2) is provided with a round hole groove (21). The left and right sides of the processing box (1) are provided with adjustment mechanisms (3), and the front and rear sides of the processing box (1) are provided with moving mechanisms (4). The adjustment mechanism (3) includes a lifting assembly (31) and a clamping assembly (32), wherein the clamping assembly (32) is disposed on the lifting assembly (31); The lifting assembly (31) includes a support plate (313), which is fixedly connected to the left and right sides of the processing box (1). There are four support plates (313) in pairs. Long plates (312) are fixedly connected to the inner side of the support plates (313) on the left and right sides. There are four long plates (312) in pairs. A square plate (314) is fixedly connected between the long plates (312) on the left and right sides. Connecting rods (318) are fixedly connected to the top two ends of the square plate (314). A moving plate (317) is slidably connected to the surface of the two connecting rods (318). A first motor (316) is fixedly connected to the center of the top of the moving plate (317). A threaded rod (315) is fixedly connected to the bottom of the first motor (316). A connecting plate (311) is rotatably connected to the bottom of the threaded rod (315). A threaded hole (319) is opened inside the square plate (314).
2. The hot-dip galvanizing apparatus for square and rectangular tubes according to claim 1, characterized in that: The threaded rod (315) is threaded to the surface and the threaded hole (319), and the connecting plate (311) is disposed at the bottom of the square plate (314).
3. The hot-dip galvanizing apparatus for square and rectangular tubes according to claim 1, characterized in that: There are two connecting rods (318), which are located on the front and rear sides of the threaded rod (315).
4. The hot-dip galvanizing apparatus for square and rectangular tubes according to claim 1, characterized in that: The clamping assembly (32) includes a push button switch (328), which is fixedly connected to the top two ends of the connecting plate (311). Limit seats (325) are fixedly connected to the front and rear sides of the connecting plate (311). There are four limit seats (325) in pairs. Electric push rods (326) are fixedly connected to the outer sides of the limit seats (325) on the left and right sides. The electric push rods (326) on the front and rear sides are electrically connected to the push button switch (328). A mounting plate (322) is fixedly connected to the other side of the electric push rod (326). A fixing plate (323) is fixedly connected to the bottom of the mounting plate (322) on the front and rear sides. Insert plates (324) are fixedly connected to the inner side of the fixing plates (323) on the left and right sides. A T-shaped block (327) is fixedly connected to the top of the fixing plate (323). A first T-shaped groove (321) is fixedly connected to the bottom of the connecting plate (311).
5. The hot-dip galvanizing apparatus for square and rectangular tubes according to claim 4, characterized in that: There are two T-blocks (327), and the surfaces of the two T-blocks (327) are slidably connected to the inside of the first T-groove (321).
6. The hot-dip galvanizing apparatus for square and rectangular tubes according to claim 1, characterized in that: The moving mechanism (4) includes a second T-slot (47), which is located on both sides of the top of the processing box (1). T-plates (46) are fixedly connected to both sides of the bottom of the cover plate (2). There are four T-plates (46) arranged in pairs. The surfaces of the T-plates (46) and the interior of the second T-slot (47) are slidably connected. Limiting plates (44) are fixedly connected to the front and rear sides of the processing box (1). There are four limiting plates (44) arranged in pairs. The right side of the... A second motor (49) is fixedly connected to the right side of the limiting plate (44), and a lead screw (43) is fixedly connected to the left side of the second motor (49). A movable seat (42) is threadedly connected to the left and right sides of the lead screw (43). A long rod (45) is fixedly connected between the left and right limiting plates (44). A hinge plate (41) is hinged to the top of the movable seat (42). An mounting block (48) is hinged to the top of the hinge plate (41). The mounting block (48) and the cover plate (2) are fixedly connected.
7. The hot-dip galvanizing apparatus for square and rectangular tubes according to claim 6, characterized in that: The number of the lead screw (43) and the long rod (45) are two, and the long rod (45) is located on the top of the lead screw (43).
8. The hot-dip galvanizing apparatus for square and rectangular tubes according to claim 6, characterized in that: The lead screw (43) is rotatably connected to the inside of the limiting plate (44), and the thread specifications of the left and right sides of the lead screw (43) are the same and the directions are opposite.