Hot dip galvanizing equipment for thin-walled square tubes

Abstract

The present invention provides a hot-dip galvanizing device for thin-walled square tubes. A feed assembly and a rotating wheel are respectively disposed in a zinc pot. The feed assembly is used to define the displacement trajectory of a steel tube, the rotating wheel is used to drive the steel tube to move, and the zinc pot is filled with plating material. A pull-out assembly is used to guide the steel tube out of the zinc pot. The feed assembly includes a first feed frame, the first feed frame is provided with a first guide groove for guiding the steel tube, a reinforcement structure is fixedly mounted on one side of the first feed frame, a plurality of first limiting protrusions are arranged on the blades of the rotating wheel, and the outer periphery of the steel tube is located between two first limiting protrusions. A plurality of second limiting protrusions are provided on the pull-out head of the pull-out assembly, and the outer periphery of the steel tube is located between two second limiting protrusions. The hot-dip galvanizing device for thin-walled square tubes described in the present invention can stabilize the shape of the first guide groove through the reinforcement structure, improve the reliability of the device, and thus improve the galvanizing efficiency of the steel tube. The first limiting protrusion and the second limiting protrusion are respectively used to define the relative position of the steel tube.

Description

Technical Field

[0001] The invention belongs to the field of hot-dip galvanizing production of steel pipes, and in particular relates to a hot-dip galvanizing device for thin-walled square pipes. Background Art

[0002] With the dynamic evolution of the market, the proportion of square and rectangular thin-walled tubes in the product mix has increased significantly, especially with increasing demand for specifications with a wall thickness of 2.0 or less. Existing equipment configurations are difficult to meet the production requirements of thin-walled tubes. During actual production, problems such as tube bending and dents can easily occur due to obstruction in the feed frame chute, seriously affecting product quality. Furthermore, due to the obstruction, production speed cannot be increased and is relatively limited, resulting in a low number of tubes produced per unit time and a low equipment utilization rate. These intertwined problems make it difficult to improve production efficiency, which in turn leads to high production costs. Summary of the Invention

[0003] In view of this, the present invention aims to propose a hot-dip galvanizing device for thin-walled square tubes to solve the problem in the prior art that the thin-walled feeding frame is easily deformed by force, causing the steel tube to be stuck and affecting production quality and production efficiency.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A hot-dip galvanizing device for thin-walled square tubes comprises a zinc pot, a feeding assembly, a rotating wheel and a dialing assembly, wherein the feeding assembly and the rotating wheel are respectively arranged in the zinc pot, the feeding assembly is used to limit the displacement trajectory of the steel tube, the rotating wheel is used to drive the steel tube to move, and the zinc pot is filled with plating material, and the dialing assembly is used to guide the steel tube out of the zinc pot, the feeding assembly comprises a first feeding frame, and the first feeding frame is located inside the zinc pot, the first feeding frame is provided with a first guide groove for guiding the steel tube, a reinforcement structure is fixedly installed on one side of the first feeding frame, and the reinforcement structure is used to prevent the first guide groove from deforming, a plurality of first limiting protrusions are arranged on the blades of the rotating wheel, the periphery of the steel tube is located between the two first limiting protrusions, a plurality of second limiting protrusions are arranged on the dialing head of the dialing assembly, the periphery of the steel tube is located between the two second limiting protrusions, the two first limiting protrusions and the two second limiting protrusions are respectively used to limit the relative position of the steel tube.

[0006] Furthermore, the cross section of the second limiting protrusion is a triangular structure, and the cross section of the first limiting protrusion is an arc structure.

[0007] Furthermore, the first feeding frame is provided with a plurality of first guide grooves from the inside to the outside, and the first guide grooves include a feeding section and a soaking section, one end of the feeding section is provided at one end of the soaking section, and the other end of the soaking section is a discharging end, the cross section of the soaking section is a U-shaped structure, and the bottom of the U-shaped structure is arc-shaped, and the outer contour of the feeding frame is the same as that of the guide grooves;

[0008] Furthermore, the reinforcement structure includes a first support plate and a second support plate, one end of the first support plate is mounted to the fixed plate or the side wall of the zinc pot, the other side of the first support plate is fixedly connected to the first feed frame, and the second support plate is arranged in the U-shaped structure of the first feed frame, the two ends of the second support plate are respectively fixedly connected to the two inner side walls of the U-shaped structure, and a first through hole is arranged on the second support plate, the outer periphery of the rotating wheel is located in the first through hole and does not contact the side wall of the first through hole.

[0009] Furthermore, a third support plate is provided on the first feeding frame, the third support plate is located at the discharge end of the immersion section, and both ends of the third support plate are fixedly connected to the upper ends of the two side walls of the U-shaped structure, the lower side of the third support plate is provided with a first guide slope, and the end of the side wall of the feeding frame located at the discharge end of the immersion section is provided with a second guide slope, and a storage space is formed between the third support plate and the second support plate, and the first guide slope and the second guide slope are used to guide the periphery of the steel pipe into the storage space.

[0010] Furthermore, a second feeding frame is further provided in the zinc pot, the second feeding frame and the first feeding frame are arranged parallel to each other, the second feeding frame is provided with a plurality of second guide grooves from the inside to the outside, the second guide grooves correspond to the first guide grooves one by one, and the discharge end of the second guide groove is higher than the upper end surface of the second support plate;

[0011] Furthermore, the dispensing assembly is located on one side of the second feeding frame, and the dispensing assembly also includes a first linear module, a fourth support plate and a dispensing rod. A support frame is provided on the zinc pot, the first linear module is fixedly installed on the support frame, the movable end of the first linear module is fixedly installed with the fourth support plate, one end of the fourth support plate is rotatably installed with the dispensing rod, one end of the dispensing rod is provided with a dispensing head, a rotating motor is installed on the fourth support plate, the output end of the rotating motor is installed with a first sprocket, a second sprocket is sleeved on the periphery of the dispensing rod, and the first sprocket and the second sprocket form a synchronous rotation structure through the first chain.

[0012] Furthermore, the rotating wheel also includes a central axis, a rotating ring is fixedly mounted on the periphery of the central axis, and the rotating ring is located on one side of the feeding assembly. A plurality of blades are circumferentially arranged on the periphery of the rotating ring, and a plurality of first limiting protrusions are arranged on each blade along the radial direction of the rotating ring.

[0013] Furthermore, a traction assembly is provided on one side of the withdrawal assembly, and the traction assembly includes a traction magnetic roller, a limiting wheel group and a limiting guide plate, and the traction magnetic roller, the limiting wheel group and the limiting guide plate are respectively installed on the fixed frame, and the fixed frame is installed to a fixed position. A traction magnetic roller is provided between the limiting wheel group and the limiting guide plate, and the limiting guide plate is located at the end of the fixed frame. The limiting guide plate is used to limit the relative position of each steel pipe, the traction magnetic roller is used to drive the displacement of the steel pipe, and the limiting wheel group is used to adjust the displacement trajectory of the steel pipe.

[0014] Furthermore, the traction magnetic roller is a magnetic roller, both ends of which are rotatably connected to a fixed frame, and a plurality of magnetic suction grooves are arranged axially on the periphery of the traction magnetic roller, and the magnetic suction grooves are annular grooves with an L-shaped or V-shaped cross-section.

[0015] Furthermore, the limiting wheel group includes multiple limiting screws, and the multiple limiting screws are arranged parallel to each other, and the two ends of each limiting screw are detachably connected to a fifth support plate, and the two fifth support plates are fixedly installed on the fixing frame. Two limiting shafts are correspondingly arranged on each limiting screw, and a limiting roller is rotatably sleeved on the outer periphery of each limiting shaft, and the outer periphery of the limiting roller is rollingly connected to the outer periphery of the steel pipe, and the two limiting rollers are used to adjust the sliding trajectory of the steel pipe. A sliding hole is provided at the upper end of the limiting shaft, and the sliding hole is slidably connected to the outer periphery of the limiting screw. A pin hole is provided on the limiting shaft, and the pin hole is connected to the sliding hole. A positioning pin is installed in the pin hole, and one end of the positioning pin can abut against the outer periphery of the limiting screw.

[0016] Furthermore, the limiting wheel group also includes an upper stop roller, which is rotatably connected to the periphery of the adjusting shaft. Each fifth support plate is provided with an elongated hole at one end close to the traction magnetic roller. The peripheries of both ends of the adjusting shaft are respectively located in an elongated hole, and the two ends of the adjusting shaft can slide in the elongated holes. The two ends of the adjusting shaft are respectively detachably connected to the fifth support plate, and the periphery of the steel pipe is rollingly connected to the periphery of the upper stop roller.

[0017] Furthermore, the limiting guide plate is located at one end of the fixing frame close to the zinc pot, and a plurality of third guide grooves are provided on the limiting guide plate. The third guide grooves correspond to the first guide grooves one by one, and the third guide grooves are used to limit the relative position of the steel pipe.

[0018] Furthermore, a V-shaped avoidance groove is provided at the lower end of the limiting guide plate, and the V-shaped avoidance groove is used for sliding avoidance of multiple steel pipes.

[0019] Furthermore, a fourth guide groove is provided at the inlet end of each third guide groove, and the fourth guide groove is a bell-mouth structure.

[0020] Furthermore, the hot-dip galvanizing device for thin-walled square tubes also includes a scraper assembly, which is installed on the zinc pot and is located on one side of the traction assembly. The scraper assembly includes a slide, a drive motor, a transmission gear, a rack, a second linear module, a sixth support plate and a scraper. A first guide rail is provided on the support frame, and the lower end of the slide is slidably connected to the periphery of the first guide rail. The drive motor is fixedly installed on the slide, a rack is provided on one side of the first guide rail, and a transmission gear is installed on the output end of the drive motor. The periphery of the transmission gear is engaged with the rack. A second linear module is provided on the slide, and the movable end of the second linear module is installed with the sixth support plate. One end of the sixth support plate is installed with the scraper through the first support rod, and the scraper can contact the liquid level surface of the plating material.

[0021] Furthermore, the scraper is evenly distributed with second through holes, and the second through holes are used for the flow of plating material.

[0022] Compared with the prior art, the hot-dip galvanizing device for thin-walled square tubes of the present invention has the following beneficial effects:

[0023] (1) The hot-dip galvanizing device for thin-walled square tubes of the present invention can stabilize the shape of the first guide groove by strengthening the structure, thereby improving the reliability of the device and improving the galvanizing efficiency of the steel tube. The first limiting protrusion and the second limiting protrusion are respectively used to limit the relative position of the steel tube.

[0024] (2) In the hot-dip galvanizing device for thin-walled square tubes described in the present invention, the cross section of the second limiting protrusion is a triangular structure, so that the wall height of the second limiting protrusion is relatively small, and the two side walls of the steel tube will not be stuck between the two second limiting protrusions, so that the pulling component can smoothly guide the steel tube to avoid the jamming of the outer periphery of the steel tube by the pulling head.

[0025] (3) The hot-dip galvanizing device for thin-walled square tubes described in the present invention has a first guide slope on the lower side of the third support plate, a second guide slope on the end of the side wall of the feed frame at the discharge end of the immersion section, and a storage space is formed between the third support plate and the second support plate. The first guide slope and the second guide slope are used to guide the outer periphery of the steel tube into the storage space. The discharge end of the second guide groove is higher than the upper end face of the second support plate. In this way, when the rotating wheel moves the steel tube, one end of the steel tube falls into the storage space, and the other end of the steel tube is lifted by the displacing assembly, so that the steel tube is in an inclined state, so as to facilitate the rapid outflow of the zinc liquid in the steel tube.

[0026] (4) In the hot-dip galvanizing device for thin-walled square tubes described in the present invention, a limiting guide plate is located at the end of the fixed frame, the limiting guide plate is used to limit the relative position of each steel tube, the traction magnetic roller is used to drive the displacement of the steel tube, and the limiting wheel group is used to adjust the displacement trajectory of the steel tube. The traveling trajectory of the steel tube can be positioned by the limiting guide plate and the limiting wheel group, and the steel tube can be driven to move along the traveling trajectory by the rotating traction magnetic roller, so as to achieve the purpose of leading the steel tube out of the zinc pot.

[0027] (5) In the hot-dip galvanizing device for thin-walled square tubes described in the present invention, the second linear module is used to drive the sixth support plate and the scraper to move up and down so as to be able to approach and move away from the liquid surface of the zinc material. The driving motor drives the transmission gear to rotate on the rack to achieve the purpose of moving the slide along the first guide rail. Before the periphery of the steel tube leaves the zinc pot, the scraper is used to scrape the surface of the zinc liquid to prevent the scum on the surface of the zinc liquid from adhering to the periphery of the steel tube, thereby improving production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 This is a schematic structural diagram of a hot-dip galvanizing device for thin-walled square tubes according to an embodiment of the present invention;

[0030] Figure 2 This is a structural diagram of the first feeding frame according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic structural diagram of the first feeding frame and the second feeding frame in the zinc pot according to an embodiment of the present invention;

[0032] Figure 4 A schematic structural diagram of a dialing component according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic structural diagram of a traction assembly according to an embodiment of the present invention;

[0034] Figure 6 This is a schematic structural diagram of the traction magnetic roller according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic structural diagram of a position-limiting wheel assembly according to an embodiment of the present invention;

[0036] Figure 8 This is a schematic structural diagram of a limit shaft according to an embodiment of the present invention;

[0037] Figure 9 This is a front view schematic diagram of a position-limiting wheel assembly according to an embodiment of the present invention;

[0038] Figure 10 This is a structural schematic diagram of a position limiting guide plate according to an embodiment of the present invention provided with only a third guide groove;

[0039] Figure 11 This is a structural schematic diagram of a third guide groove and a V-shaped avoidance groove provided on a position limiting guide plate according to an embodiment of the present invention;

[0040] Figure 12 This is a structural schematic diagram of a third guide groove, a fourth guide groove and a V-shaped avoidance groove provided on a position limiting guide plate according to an embodiment of the present invention;

[0041] Figure 13 This is a schematic structural diagram of the scraper assembly according to an embodiment of the present invention.

[0042] Description of reference numerals:

[0043] 1- zinc pot; 11- support frame; 12- first guide rail; 2- feed assembly; 21- first feed frame; 211- first guide groove; 2111- feed section; 2112- soaking section; 22- reinforcement structure; 221- first support plate; 222- second support plate; 223- fixed plate; 224- first through hole; 225- third support plate; 226- first guide ramp; 227- second guide ramp; 23- second feed frame; 231- second guide groove; 3- rotating wheel; 31- impeller blade; 32- first limiting protrusion; 33- middle shaft; 34- rotating ring; 4- disengagement assembly; 41- disengagement head; 42- second limiting protrusion; 43- first linear module; 44-the fourth support plate; 45-the material removal rod; 46-the rotating motor; 5-the traction assembly; 51-the traction magnetic roller; 511-the magnetic suction groove; 52-the limiting wheel group; 521-the limiting screw; 522-the fifth support plate; 523-the limiting shaft; 524-the limiting roller; 525-the positioning pin; 526-the upper stop roller; 527-the adjusting shaft; 528-the long hole; 53-the limiting guide plate; 531-the third guide groove; 532-the V-shaped avoidance groove; 533-the fourth guide groove; 54-the fixing frame; 6-the scraper assembly; 61-the scraper; 62-the driving motor; 63-the rack; 64-the second linear module; 65-the sixth support plate; 66-the second through hole; 67-the first support rod. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0046] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0048] like Figures 1-13 As shown, the hot-dip galvanizing device for thin-walled square tubes includes a zinc pot 1, a feeding component 2, a rotating wheel 3, a pulling component 4, a traction component 5 and a scraping component 6. The zinc pot 1 is filled with galvanized material, and the galvanized material is in liquid form in the zinc pot 1. The feeding component 2 and the rotating wheel 3 are respectively arranged in the zinc pot 1. The outlet end of the feeding component 2 is provided with a pulling component 4, and the traction component 5 is provided on one side of the pulling component 4. The traction component 5 can transfer the steel pipe to the next process, and the external stepping mechanism can feed the steel pipe into the feeding component 2. The rotating wheel 3 is used to move the steel pipe in the feeding component 2 and guide the end of the steel pipe out of the feeding component 2. The pulled-out end of the steel pipe can be picked up by the pulling component 4 and sent to the traction component 5. Before the pulling-out component 4 picks up the end of the steel pipe, the scraping component 6 can scrape off the scum on the surface of the liquid galvanized material to prevent the scum from adhering to the surface of the steel pipe and affecting the quality of the steel pipe.

[0049] like Figure 2 and Figure 3As shown, the feeding assembly 2 includes a first feeding frame 21 and a second feeding frame 23, the first feeding frame 21 and the second feeding frame 23 are arranged parallel to each other, the first feeding frame 21 and the second feeding frame 23 are respectively connected to the fixed plate 223 through a reinforcing structure 22. During implementation, the reinforcing structure 22 can also be directly connected to the side wall of the zinc pot 1 according to the working conditions. The first feeding frame 21 is sequentially provided with a plurality of first guide grooves 211 from the inside to the outside, and the second feeding frame 23 is sequentially provided with a plurality of second guide grooves 231 from the inside to the outside. The first guide grooves 211 and the second guide grooves 231 correspond to each other one by one, and the periphery of each steel pipe is respectively located at a first guide groove 211 and a second guide groove 231. Toward the groove 231, the rotating wheel 3 is used to move the steel pipe in the first guide groove 211 and the second guide groove 231. In order to prevent the first feed frame 21 and the second feed frame 23 from occupying the space in the zinc pot 1, the volume of the first feed frame 21 and the second feed frame 23 should be reduced as much as possible. However, the first feed frame 21 and the second feed frame 23 are provided with multiple first guide grooves 211 and second guide grooves 231, which will cause the first feed frame 21 and the second feed frame 23 to be easily deformed, resulting in material jamming. The reinforcing structure 22 can stabilize the shape of the first guide groove 211 and the second guide groove 231, improve the reliability of the device, and thus improve the galvanizing efficiency of the steel pipe.

[0050] The first guide groove 211 and the second guide groove 231 have the same structure, both including a soaking section 2112 and a feeding section 2111 provided at one end thereof, and the other end of the soaking section 2112 is a discharging end. Figure 2 As shown, the cross section of the dipping section 2112 is a U-shaped structure, and the bottom of the U-shaped structure is arc-shaped, and the main body contours of the first feeding frame 21 and the second feeding frame 23 are the same as the contours of the first guide groove 211.

[0051] like Figure 2 As shown, the reinforcement structure 22 includes a first support plate 221 and a second support plate 222. One end of the first support plate 221 is mounted to the fixed plate 223 or the side wall of the zinc pot 1, and the other side of the first support plate 221 is fixedly connected to the first feeding frame 21. The second support plate 222 is arranged in the U-shaped structure of the first feeding frame 21, and the two ends of the second support plate 222 are respectively fixedly connected to the two inner side walls of the U-shaped structure, and a first through hole 224 is arranged on the second support plate 222. The periphery of the rotating wheel 3 is located in the first through hole 224 and does not contact the side wall of the first through hole 224.

[0052] The first feeding frame 21 is also provided with a third support plate 225, which is located at the discharge end of the immersion section 2112, and both ends of the third support plate 225 are fixedly connected to the upper ends of the two side walls of the U-shaped structure, the lower side of the third support plate 225 is provided with a first guide slope 226, and the end of the feeding frame side wall located at the discharge end of the immersion section 2112 is provided with a second guide slope 227, and a material storage space is formed between the third support plate 225 and the second support plate 222. The inclined slope 227 is used to guide the periphery of the steel pipe into the storage space. The discharge end of the second guide groove 231 is higher than the upper end surface of the second support plate 222. In this way, when the rotating wheel 3 moves the steel pipe, one end of the steel pipe falls into the storage space, and the other end is lifted by the pulling component 4, so that the steel pipe is in an inclined state to facilitate the rapid outflow of the zinc liquid in the steel pipe. At this time, the inclination angle of the steel pipe is the same as the inclination angle of the traction component 5, so as to achieve the purpose of quickly leading out the steel pipe and improve production efficiency.

[0053] like Figure 4 As shown, the dispensing component 4 is located on one side of the second feeding frame 23, and the dispensing component 4 includes a first linear module 43, a fourth support plate 44, a dispensing rod 45, a dispensing head 41 and a second limiting protrusion 42. A support frame 11 is provided on the zinc pot 1, and the first linear module 43 is fixedly mounted on the support frame 11. The movable end of the first linear module 43 is fixedly mounted on the fourth support plate 44, and the dispensing rod 45 is rotatably mounted on one end of the fourth support plate 44. The dispensing head 41 is provided on one end of the dispensing rod 45, and a rotating motor 46 is installed on the fourth support plate 44. A first sprocket is installed at the output end, and a second sprocket is sleeved on the outer periphery of the material-dispensing rod 45. The first sprocket and the second sprocket form a synchronous rotation structure through the first chain. A plurality of second limiting protrusions 42 are provided on the dispensing head 41. The outer periphery of the steel pipe is located between the two second limiting protrusions 42. The cross-section of the second limiting protrusion 42 is a triangular structure, so that the wall height of the second limiting protrusion 42 is relatively small, and the two side walls of the steel pipe will not be stuck between the two second limiting protrusions 42, so as to facilitate the traction component 5 to smoothly guide out the steel pipe, so as to avoid the obstruction of the outer periphery of the steel pipe by the dispensing head 41.

[0054] During implementation, the first linear module 43 adopts the hydraulic cylinder of the existing technology. The first linear module 43 can drive the lifting and lowering of the digging head 41 so as to extend the digging head 41 into or out of the zinc pot 1, thereby lifting the end of the steel pipe. A digging rod 45 is rotatably set on the fourth support plate 44, and the digging rod 45 is driven to rotate by the rotating motor 46. The digging head can be driven to rotate synchronously to realize the movement of the digging head to the working position or to avoid the travel route of the steel pipe.

[0055] The rotating wheel 3 includes a central axis 33, and a rotating ring 34 is fixedly mounted on the periphery of the central axis 33, and the rotating ring 34 is located on one side of the feeding assembly 2. A plurality of blades 31 are arranged circumferentially on the periphery of the rotating ring 34, and a plurality of first limiting protrusions 32 are arranged radially along the rotating ring 34 on each blade 31. The periphery of the steel pipe is located between the two first limiting protrusions 32, and the cross-section of the first limiting protrusion 32 is an arc-shaped structure. The two first limiting protrusions 32 are used to limit the relative position of the steel pipe so as to achieve the purpose of moving the steel pipe in the first guide groove 211 and the second guide groove 231.

[0056] like Figure 5 As shown, the traction assembly 5 includes a traction magnetic roller 51, a limiting wheel group 52 and a limiting guide plate 53, and the traction magnetic roller 51, the limiting wheel group 52 and the limiting guide plate 53 are respectively installed on the fixed frame 54, the fixed frame 54 is installed to a fixed position, and the traction magnetic roller 51 is arranged between the limiting wheel group 52 and the limiting guide plate 53, and the traction magnetic roller 51 is a magnetic roller in the prior art, the limiting guide plate 53 is located at the end of the fixed frame 54, the limiting guide plate 53 is used to limit the relative position of each steel pipe, the traction magnetic roller 51 is used to drive the steel pipe to move, and the limiting wheel group 52 is used to adjust the displacement trajectory of the steel pipe, the traveling trajectory of the steel pipe can be positioned by the limiting guide plate 53 and the limiting wheel group 52, and the rotating traction magnetic roller 51 can drive the steel pipe to move along the traveling trajectory, so as to achieve the purpose of leading the steel pipe out of the zinc pot 1.

[0057] like Figure 6 As shown, both ends of the traction magnetic roller 51 are rotatably connected to the fixed frame 54, and a plurality of magnetic suction grooves 511 are arranged axially on the periphery of the traction magnetic roller 51. The magnetic suction grooves 511 are annular grooves with an L-shaped or V-shaped cross-section, and the L-shaped or V-shaped annular grooves are adapted to the outer contour of the steel pipe.

[0058] like Figure 7As shown, the limiting wheel group 52 includes a plurality of limiting screws 521, and the plurality of limiting screws 521 are arranged parallel to each other, and the two ends of each limiting screw 521 are detachably connected to a fifth support plate 522, and the two fifth support plates 522 are fixedly installed on the fixing frame 54, and two limiting shafts 523 are correspondingly provided on each limiting screw 521, and the periphery of each limiting shaft 523 is rotatably sleeved with a limiting roller 524, and the periphery of the limiting roller 524 is rollingly connected to the periphery of the steel pipe, and the two limiting rollers 524 are used to adjust the sliding trajectory of the steel pipe, and the upper end of the limiting shaft 523 is provided with a sliding hole, and the sliding hole is slidably connected to the periphery of the limiting screw 521, and a pin hole is provided on the limiting shaft 523, and the pin hole is connected to the sliding hole, and a positioning device is installed in the pin hole. Pin 525, one end of the positioning pin 525 can abut against the periphery of the limiting screw 521. When producing multiple steel pipes, the relative position of a steel pipe can be positioned by the two limiting rollers 524 on the single limiting screw 521, and the limiting roller 524 rotates on the periphery of the limiting shaft 523 to enable the periphery of the steel pipe to be rolled and connected to the periphery of the limiting roller 524. The relative positions of the two limiting shafts 523 are installed through the positioning pin 525 to adjust the distance between the two limiting rollers 524, which has adapted to the production of different steel pipes. When in use, by adjusting the axial position of the limiting screw 521, the relative positions of the two limiting rollers 524 on the fifth support plate 522 can be fine-tuned to achieve on-line adjustment and facilitate adjustment.

[0059] The limiting wheel group 52 also includes an upper stop roller 526, which cooperates with the magnetic suction groove 511 of the traction magnetic roller 51 to limit the relative position of the outer periphery of the steel pipe, and the upper stop roller 526 is rollingly connected to the outer periphery of the steel pipe, which can guide the steel pipe to slide between the two limiting rollers 524. Figure 7 As shown, the upper stop roller 526 is rotatably connected to the periphery of the adjusting shaft 527, and each fifth support plate 522 is provided with an elongated hole 528 at one end close to the traction magnetic roller 51. The peripheries of both ends of the adjusting shaft 527 are respectively located in an elongated hole 528, and the two ends of the adjusting shaft 527 can slide in the elongated hole 528. The two ends of the adjusting shaft 527 are respectively detachably connected to the fifth support plate 522, and the periphery of the steel pipe is rollingly connected to the periphery of the upper stop roller 526.

[0060] like Figures 9-12As shown, the limiting guide plate 53 is located at one end of the fixed frame 54 close to the zinc pot 1, and a plurality of third guide grooves 531 are provided on the limiting guide plate 53. The third guide grooves 531 correspond one-to-one with the first guide grooves 211. The third guide grooves 531 are used to limit the relative position of the steel pipe. The third guide grooves 531 and the two limiting rollers 524 are used to limit the travel trajectory of the steel pipe on the fixed frame 54, and the third guide grooves 531 are the initial limiting structure. The third guide grooves 531 correspond one-to-one with the first guide grooves 211 and the second guide grooves 231. When the steel pipe is out of the second guide grooves 231, the relative position of the end of the steel pipe will change randomly. Although there is a guiding effect of the second limiting protrusion 42, there will be a steel pipe. In the case where the outer periphery of the pipes is in different positions, when the steel pipe enters the third guide groove 531, the outer periphery of the steel pipe will move due to the restriction of the third guide groove 531. In order to avoid the relative movement of the pipe ends affecting each other, a V-shaped avoidance groove 532 is provided at the lower end of the limiting guide plate 53. The V-shaped avoidance groove 532 is used for sliding avoidance of multiple steel pipes. When the width of the third guide groove 531 is implemented, it is greater than the outer contour width of the steel pipe. By providing the V-shaped avoidance groove 532, the steel pipes can enter the corresponding third guide groove 531 one by one, and a fourth guide groove 533 is provided at the inlet end of each third guide groove 531. The fourth guide groove 533 is a trumpet-mouth structure, so that each steel pipe can be introduced into the corresponding third guide groove 531.

[0061] The scraper assembly 6 is installed on the zinc pot 1, and the scraper assembly 6 is located on one side of the traction assembly 5. The scraper assembly 6 includes a slide, a drive motor 62, a transmission gear, a rack 63, a second linear module 64, a sixth support plate 65 and a scraper 61. The support frame 11 is provided with a first guide rail 12. The lower end of the slide is slidably connected to the periphery of the first guide rail 12. The drive motor 62 is fixedly installed on the slide. A rack 63 is provided on one side of the first guide rail 12. The output end of the drive motor 62 is installed with a transmission gear. The periphery of the transmission gear is meshed with the rack 63. A second linear module 64 is provided on the slide. The movable end of the second linear module 64 is installed with the sixth support plate 65. One end of the sixth support plate 65 is arranged through the first support rod 67 A scraper 61 is installed, and the scraper 61 can contact the liquid level surface of the plating material. During implementation, the second linear module 64 adopts a hydraulic cylinder of the existing technology. The second linear module 64 is used to drive the sixth support plate 65 and the scraper 61 to move up and down so as to be close to and away from the liquid surface of the zinc material. The drive motor 62 drives the transmission gear to rotate on the rack 63 to achieve the purpose of moving the slide along the first guide rail 12. Before the periphery of the steel pipe leaves the zinc pot 1, the surface of the zinc liquid is scraped by the scraper 61 to prevent the scum on the surface of the zinc liquid from adhering to the periphery of the steel pipe, thereby improving production quality. In order to prevent the scraper 61 from disturbing the zinc liquid and causing the zinc liquid to surge, second through holes 66 are evenly distributed on the scraper 61. The second through holes 66 are used for the circulation of the plating material.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hot-dip galvanizing device for thin-walled square tubes, comprising a zinc pot (1), a feed assembly (2), a rotating wheel (3) and a pull-out assembly (4), wherein the feed assembly (2) and the rotating wheel (3) are respectively arranged in the zinc pot (1), the feed assembly (2) is used to limit the displacement trajectory of the steel tube, the rotating wheel (3) is used to drive the steel tube to move, and the zinc pot (1) is filled with plating material, and the pull-out assembly (4) is used to guide the steel tube out of the zinc pot (1), the feed assembly (2) comprises a first feed frame (21), and the first feed frame (21) is located inside the zinc pot (1), and a first guide groove (211) for guiding the steel tube is provided on the first feed frame (21), characterized in that: A reinforcement structure (22) is fixedly installed on one side of the first feeding frame (21), and the reinforcement structure (22) is used to prevent the first guide groove (211) from being deformed. A plurality of first limiting protrusions (32) are arranged on the blade (31) of the rotating wheel (3), and the periphery of the steel pipe is located between the two first limiting protrusions (32). A plurality of second limiting protrusions (42) are arranged on the dispensing head (41) of the dispensing component (4), and the periphery of the steel pipe is located between the two second limiting protrusions (42). The two first limiting protrusions (32) and the two second limiting protrusions (42) are respectively used to limit the relative position of the steel pipe, and the cross section of the second limiting protrusion (42) is a triangular structure, and the cross section of the first limiting protrusion (32) is an arc structure.

2. The hot-dip galvanizing device for thin-walled square tubes according to claim 1, characterized in that: The first feeding frame (21) is provided with a plurality of first guide grooves (211) from the inside to the outside, and the first guide grooves (211) include a feeding section (2111) and a soaking section (2112), one end of the feeding section (2111) is provided at one end of the soaking section (2112), and the other end of the soaking section (2112) is a discharge end, the cross section of the soaking section (2112) is a U-shaped structure, and the bottom of the U-shaped structure is arc-shaped, and the outer contour of the first feeding frame (21) is the same as the outer contour of the guide grooves.

3. The hot-dip galvanizing device for thin-walled square tubes according to claim 2, characterized in that: The reinforcement structure (22) includes a first support plate (221) and a second support plate (222), one end of the first support plate (221) is mounted on a fixed plate (223) or a side wall of the zinc pot (1), the other side of the first support plate (221) is fixedly connected to the first feed frame (21), the second support plate (222) is arranged in the U-shaped structure of the first feed frame (21), the two ends of the second support plate (222) are respectively fixedly connected to the two inner side walls of the U-shaped structure, and a first through hole (224) is arranged on the second support plate (222), the outer periphery of the rotating wheel (3) is located in the first through hole (224) and does not contact the side wall of the first through hole (224); A third support plate (225) is also provided on the first feeding frame (21), and the third support plate (225) is located at the discharge end of the immersion section (2112), and both ends of the third support plate (225) are fixedly connected to the upper ends of the two side walls of the U-shaped structure of the first feeding frame (21), a first guide slope (226) is provided on the lower side of the third support plate (225), and a second guide slope (227) is provided on the end of the feeding frame side wall located at the discharge end of the immersion section (2112), and a material storage space is formed between the third support plate (225) and the second support plate (222), and the first guide slope (226) and the second guide slope (227) are used to guide the periphery of the steel pipe into the material storage space.

4. The hot-dip galvanizing device for thin-walled square tubes according to claim 1, characterized in that: A second feeding frame (23) is further provided in the zinc pot (1). The second feeding frame (23) and the first feeding frame (21) are arranged parallel to each other. The second feeding frame (23) is provided with a plurality of second guide grooves (231) from the inside to the outside. The second guide grooves (231) correspond to the first guide grooves (211) one by one. The discharge end of the second guide groove (231) is higher than the upper end surface of the second support plate (222). The dispensing assembly (4) is located on one side of the second feeding frame (23), and the dispensing assembly (4) further comprises a first linear module (43), a fourth support plate (44) and a dispensing rod (45). A support frame (11) is provided on the zinc pot (1), the first linear module (43) is fixedly mounted on the support frame (11), the movable end of the first linear module (43) is fixedly mounted on the fourth support plate (44), one end of the fourth support plate (44) is rotatably mounted on the dispensing rod (45), one end of the dispensing rod (45) is provided with a dispensing head (41), a rotating motor (46) is installed on the fourth support plate (44), the output end of the rotating motor (46) is provided with a first sprocket, the outer periphery of the dispensing rod (45) is provided with a second sprocket, and the first sprocket and the second sprocket form a synchronous rotation structure through a first chain.

5. The hot-dip galvanizing device for thin-walled square tubes according to claim 1, characterized in that: The rotating wheel (3) further comprises a central shaft (33), a rotating ring (34) is fixedly sleeved on the periphery of the central shaft (33), and the rotating ring (34) is located on one side of the feeding assembly (2), a plurality of blades (31) are arranged circumferentially on the periphery of the rotating ring (34), and a plurality of first limiting protrusions (32) are arranged on each blade (31) along the radial direction of the rotating ring (34).

6. The hot-dip galvanizing device for thin-walled square tubes according to claim 1, characterized in that: A traction assembly (5) is provided on one side of the extraction assembly (4), and the traction assembly (5) comprises a traction magnetic roller (51), a limiting wheel group (52) and a limiting guide plate (53), and the traction magnetic roller (51), the limiting wheel group (52) and the limiting guide plate (53) are respectively mounted on a fixing frame (54), and the fixing frame (54) is mounted to a fixed position, and a traction magnetic roller (51) is provided between the limiting wheel group (52) and the limiting guide plate (53), and the limiting guide plate (53) is located at an end of the fixing frame (54), and the limiting guide plate (53) is used to limit the relative position of each steel pipe, and the traction magnetic roller (51) is used to drive the displacement of the steel pipe, and the limiting wheel group (52) is used to adjust the displacement trajectory of the steel pipe.

7. The hot-dip galvanizing device for thin-walled square tubes according to claim 6, characterized in that: The traction magnetic roller (51) is a magnetic roller. Both ends of the traction magnetic roller (51) are rotatably connected to a fixed frame (54). A plurality of magnetic attraction grooves (511) are arranged axially on the periphery of the traction magnetic roller (51). The magnetic attraction grooves (511) are annular grooves with an L-shaped or V-shaped cross section.

8. The hot-dip galvanizing device for thin-walled square tubes according to claim 6, characterized in that: The limiting wheel group (52) includes a plurality of limiting screws (521), and the plurality of limiting screws (521) are arranged in parallel with each other. The two ends of each limiting screw (521) are detachably connected to a fifth support plate (522), and the two fifth support plates (522) are respectively fixedly mounted on the fixing frame (54). Two limiting shafts (523) are correspondingly arranged on each limiting screw (521), and each limiting shaft (523) is rotatably sleeved with a limiting roller. (524), the periphery of the limiting roller (524) is connected to the periphery of the steel pipe by rolling, and the two limiting rollers (524) are used to adjust the sliding track of the steel pipe, the upper end of the limiting shaft (523) is provided with a sliding hole, the sliding hole is slidably connected to the periphery of the limiting screw (521), the limiting shaft (523) is provided with a pin hole, the pin hole is connected to the sliding hole, and a positioning pin (525) is installed in the pin hole, and one end of the positioning pin (525) can abut against the periphery of the limiting screw (521); The limiting wheel group (52) also includes an upper stop roller (526), ​​which is rotatably connected to the periphery of the adjustment shaft (527). Each fifth support plate (522) is provided with an elongated hole (528) at one end close to the traction magnetic roller (51). The peripheries of both ends of the adjustment shaft (527) are respectively located in an elongated hole (528), and the two ends of the adjustment shaft (527) can slide in the elongated hole (528). The two ends of the adjustment shaft (527) are respectively detachably connected to the fifth support plate (522), and the periphery of the steel pipe is rollingly connected to the periphery of the upper stop roller (526).

9. The hot-dip galvanizing device for thin-walled square tubes according to claim 6, characterized in that: The limiting guide plate (53) is located at one end of the fixing frame (54) close to the zinc pot (1), and a plurality of third guide grooves (531) are provided on the limiting guide plate (53), and the third guide grooves (531) correspond to the first guide grooves (211) one by one, and the third guide grooves (531) are used to limit the relative position of the steel pipe; A V-shaped avoidance groove (532) is provided at the lower end of the limiting guide plate (53), and the V-shaped avoidance groove (532) is used for sliding avoidance of multiple steel pipes; A fourth guide groove (533) is provided at the inlet end of each third guide groove (531), and the fourth guide groove (533) is a bell-mouth structure.

10. The hot-dip galvanizing device for thin-walled square tubes according to claim 1, characterized in that: The scraper assembly (6) is also included. The scraper assembly (6) is installed on the zinc pot (1), and the scraper assembly (6) is located on one side of the traction assembly (5). The scraper assembly (6) includes a slide, a drive motor (62), a transmission gear, a rack (63), a second linear module (64), a sixth support plate (65) and a scraper (61). The support frame (11) is provided with a first guide rail (12). The lower end of the slide is slidably connected to the outer periphery of the first guide rail (12). The slide is fixedly installed A drive motor (62) is provided, a rack (63) is provided on one side of the first guide rail (12), a transmission gear is installed at the output end of the drive motor (62), the outer periphery of the transmission gear is meshed with the rack (63), a second linear module (64) is provided on the slide, a sixth support plate (65) is installed at the movable end of the second linear module (64), a scraper (61) is installed at one end of the sixth support plate (65) through a first support rod (67), and the scraper (61) can contact the liquid level surface of the plating material; Second through holes (66) are evenly distributed on the scraper (61), and the second through holes (66) are used for the circulation of plating materials.

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