Straightening device for welded square tube

Abstract

The utility model provides a straightening device of welded square tube, including support subassembly, feed assembly, square tube straightening subassembly and collection square tube subassembly, support subassembly includes two first support plate and second support plate, two first support plate sets up mutually parallel, and the both ends of second support plate are fixedly connected to the one end of a first support plate respectively and form U type support structure after, the U type support structure is along material direction of travel and is provided with feed assembly, pipe face flat device and square tube straightening subassembly respectively, and collection square tube subassembly is hinged in one end of support subassembly, and is located square tube straightening subassembly's one side, the straightening device of welded square tube can straighten square tube continuously under the condition of room temperature, can also adapt to different size's welded square tube, can realize to the straightening of different welded square tube of specification under the condition of not changing equipment.

Description

Technical Field

[0001] This utility model belongs to the field of welded pipe production, and in particular relates to a straightening device for welded square tubes. Background Technology

[0002] Current methods for straightening welded steel pipes often involve manual hammering or mechanical high-temperature straightening. However, these methods are inefficient, energy-intensive, and lack precision. Over-straightening can also easily lead to pipe wall damage. While existing mechanical straightening devices, such as multi-roller straighteners, can achieve continuous operation, they are not adaptable to different specifications of square pipes and are prone to secondary deformation. Therefore, it is necessary to develop a high-precision, continuous straightening device for welded square pipes to improve straightening efficiency, ensure material integrity, and meet the needs of multi-specification production. Summary of the Invention

[0003] In view of this, the present invention aims to propose a straightening device for welded square tubes to solve the problems of low straightening efficiency, high energy consumption and insufficient accuracy of existing technologies that rely on manual hammering or mechanical high-temperature straightening.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows: The straightening device for welded square tubes includes a support assembly, a feeding assembly, a square tube straightening assembly, and a collecting square tube assembly. The support assembly includes two first support plates and a second support plate. The two first support plates are arranged parallel to each other. The two ends of the second support plate are respectively fixedly connected to one end of one of the first support plates to form a U-shaped support structure. The feeding assembly, the square tube straightening assembly, and the collecting square tube assembly are respectively arranged along the material travel direction within the U-shaped support structure. The collecting square tube assembly is hinged to one end of the support assembly and is located on one side of the square tube straightening assembly.

[0005] Furthermore, the feeding assembly includes multiple sets of square tube limiting units, which are arranged sequentially along the material travel direction. A support plate is installed inside the U-shaped support structure. Each set of square steel limiting units is located above the support plate. Each set of square steel limiting units includes two spring rollers, which are parallel to each other and facing each other. One end of each spring roller is rolled to the periphery of the square tube, and the other end of the spring roller is correspondingly installed on a first support plate.

[0006] Furthermore, the spring roller includes a first metal rod, a U-shaped frame, a roller, two second metal rods, and two springs. The roller is rotatably connected to the first metal rod. The first metal rod passes through the two side walls of the open end of the U-shaped frame and is fixedly connected. The two second metal rods are arranged in parallel, and one end of each second metal rod is fixedly connected to the closed end of the U-shaped frame. The other end of each second metal rod is slidably connected to the circular hole of the first support plate. Each spring is correspondingly sleeved on one of the second metal rods, and the two ends of the spring abut against one side of the first support plate and the closed end of the U-shaped frame, respectively.

[0007] Furthermore, the support plate has strip-shaped holes along the material flow direction. The pushing unit is slidably connected in the strip-shaped holes. The pushing unit includes a baffle, a third metal rod, two slide rails, a rack, a first rotating motor, a power gear, a driven gear, and a gear support frame. The third metal rod is slidably connected in the square holes provided on the support plate and can move along the square holes. The lower end of the baffle is connected to one end of the third metal rod, and the other end of the third metal rod is connected to the upper end of the gear support frame. The rack is located below the gear support frame and is mounted on the second support plate. The two slide rails are arranged parallel to each other on both sides of the rack and are mounted on the second support plate, and the two slide rails are arranged opposite each other. The lower end of the gear support frame is slidably connected to the two slide rails. The power gear and the driven gear are both rotatably connected to the gear support frame and mesh with each other. The first rotating motor is fixed on the outside of the gear support frame, and the output shaft of the first rotating motor is fixedly connected to the power gear.

[0008] Furthermore, the square tube straightening assembly includes multiple straightening units, a chain, a second rotating motor, and a third support plate. The multiple straightening units are arranged in parallel with each other, and the two ends of each straightening unit are rotatably connected to a first support plate. A sprocket is fixedly sleeved around the periphery of each straightening unit. The multiple sprockets form a synchronous transmission structure through the chain, and the inner ring of the chain meshes with the periphery of the output gear of the second rotating motor. The second rotating motor is fixedly installed on any one of the first support plates through the third support plate.

[0009] Furthermore, the straightening unit includes a rotating V-shaped roller, and the periphery of the threaded rod is rotatably connected to the first support plate.

[0010] Furthermore, each square hole has a sliding groove on both sides, and each slider is slidably connected to the sliding grooves on both sides of the square hole.

[0011] Furthermore, the collecting square tube assembly includes a collecting panel and two support legs. One side of the collecting panel is hinged to each of the first support plates, and two support legs are provided on the other side of the collecting panel. The upper end of each support leg is hinged to the lower end of the collecting panel.

[0012] Compared with the prior art, the straightening device for welded square tubes described in this utility model has the following advantages: The straightening device for welded square tubes described in this utility model, by installing parallel V-shaped rollers, can straighten the square tubes during transportation, replacing manual hammering or mechanical high-temperature straightening, reducing manpower waste and energy loss caused by high temperatures.

[0013] The straightening device for welded square tubes described in this utility model, by setting a spring roller and a second slider, can adapt to welded square tubes of different sizes, and can straighten welded square tubes of different specifications without changing the equipment.

[0014] The straightening device for welded square tubes described in this utility model, by installing a tube collection device, allows the straightened square tubes to be placed on a collection panel, preventing the straightened welded square tubes from falling directly to the ground and undergoing secondary deformation. Attached Figure Description

[0015] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the straightening device for the welded square tube described in this embodiment of the utility model; Figure 2 This is a schematic diagram of the feeding assembly described in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the spring roller of the feeding assembly described in this embodiment of the utility model; Figure 4 This is a schematic diagram of the pushing unit of the feeding assembly described in an embodiment of the present utility model; Figure 5 This is a cross-sectional schematic diagram of the pushing unit of the feeding assembly described in this embodiment of the utility model; Figure 6 This is a schematic diagram of the square tube straightening assembly described in an embodiment of the present utility model; Figure 7 This is a schematic diagram of the straightening unit of the square tube straightening assembly described in this embodiment of the present utility model; Figure 8 This is a schematic diagram of the collection component described in an embodiment of the present utility model.

[0016] Explanation of reference numerals in the attached figures: 1-Support assembly; 11-First support plate; 12-Second support plate; 2-Feeding assembly; 21-Spring roller; 211-First metal rod; 212-U-shaped frame; 213-Roller; 214-Second metal rod; 215-Spring; 22-Support plate; 23-Pushing unit; 231-Baffle; 232-Third metal rod; 233-Slide rail; 234-Rack; 235-First rotating motor; 236-Power gear; 237-From 238-Gear support frame; 3-Square tube straightening assembly; 31-Straightening unit; 311-Rotating V-shaped roller; 312-Driven V-shaped roller; 313-First rotating shaft; 314-Second rotating shaft; 315-Threaded rod; 316-Threaded hole; 317-Slider; 318-Slide groove; 32-Chain; 33-Second rotating motor; 34-Third support plate; 35-Sprocket; 4-Collecting square tube assembly; 41-Collecting panel; 42-Support leg. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 As shown, the straightening device for welded square tubes includes a support assembly 1, a feeding assembly 2, a square tube straightening assembly 3, and a collecting square tube assembly 4. The support assembly 1 includes two first support plates 11 and a second support plate 12. The two first support plates 11 are arranged parallel to each other. The two ends of the second support plate 12 are respectively fixedly connected to one end of one of the first support plates 11 to form a U-shaped support structure. The feeding assembly 2, the square tube straightening assembly 3, and the collecting square tube assembly 4 are respectively arranged along the material travel direction in the U-shaped support structure. The collecting square tube assembly 4 is hinged to one end of the support assembly 1 and is located on one side of the square tube straightening assembly 3.

[0022] like Figure 2 As shown, the feeding assembly 2 includes multiple sets of square tube limiting units, which are arranged sequentially along the material travel direction. A support plate 22 is installed within the U-shaped support structure. Each set of square steel limiting units is located above the support plate 22. Each set of square steel limiting units includes two spring rollers 21, which are parallel to each other and facing each other. One end of each spring roller 21 is rotatably connected to the periphery of the square tube, and the other end of each spring roller 21 is correspondingly mounted on a first support plate 11. When a square tube is placed on a spring roller 21, the spring roller 21 will fix the square tube under the action of the spring. Since the spring roller 21 can slide on the support assembly 1, it can also fix square tubes of different sizes, adapting to square tubes of different specifications.

[0023] like Figure 3 As shown, the spring roller 21 includes a first metal rod 211, a U-shaped frame 212, a roller 213, two second metal rods 214, and two springs 215. The roller 213 is rotatably connected to the first metal rod 211. The first metal rod 211 passes through the two side walls of the open end of the U-shaped frame 212 and is fixedly connected. The two second metal rods 214 are arranged in parallel, and one end of each second metal rod 214 is fixedly connected to the closed end of the U-shaped frame 212. The other end of each second metal rod 214 is slidably connected to the circular hole of the first support plate 11. Each spring 215 is correspondingly sleeved on one of the second metal rods 214, and the two ends of the spring 215 abut against one side of the first support plate 11 and the closed end of the U-shaped frame 212, respectively.

[0024] like Figure 4 and Figure 5As shown, the support plate 22 has a strip-shaped hole along the material flow direction. The pushing unit 23 is slidably connected in the strip-shaped hole. The pushing unit 23 includes a baffle 231, a third metal rod 232, two slide rails 233, a rack 234, a first rotating motor 235, a power gear 236, a driven gear 237, and a gear support frame 238. The third metal rod 232 is slidably connected in the square hole on the support plate 22 and can move along the square hole. The lower end of the baffle 231 is connected to one end of the third metal rod 232, and the other end of the third metal rod 232 is connected to the upper end of the gear support frame 238. The rack 234 is located below the gear support frame 238 and is installed on the second support plate 12. The two slide rails 233 are arranged parallel to each other on both sides of the rack 234 and are installed on the second support plate 12, and the two slide rails 233 are arranged opposite each other. The lower end of the gear support frame 238... The gear support frame 238 is slidably connected to two slide rails 233. Both the drive gear 236 and the driven gear 237 are rotatably connected to the gear support frame 238, and the drive gear 236 and the driven gear 237 mesh with each other. The first rotating motor 235 is fixed on the outside of the gear support frame 238. The output shaft of the first rotating motor 235 is fixedly connected to the drive gear 236. When feeding is required, the controller is turned on, and the controller controls the first rotating motor 235 to start. The first rotating motor 235 is existing technology, and the model of the first rotating motor 235 is TRF-130CH-18115. The rotation of the drive gear 236, through the meshing of the driven gear 237 and the rack 234, enables the gear support frame 238 to move on the slide rail 233, and drives the third metal rod 232 to move. At the same time, it causes the baffle 231 fixed on it to move, which can push the welded square tube to move towards the square tube straightening assembly 4.

[0025] like Figure 6 As shown, the square tube straightening assembly 3 includes multiple straightening units 31, a chain 32, a second rotating motor 33, and a third support plate 34. The multiple straightening units 31 are arranged in parallel with each other. The two ends of each straightening unit 31 are rotatably connected to a first support plate 11. A sprocket 35 is fixedly sleeved on the periphery of each straightening unit 31. The multiple sprockets 35 form a synchronous transmission structure through the chain 32, and the inner ring of the chain 32 meshes with the periphery of the output gear of the second rotating motor 33. The second rotating motor 33 is fixedly installed on any one of the first support plates 11 through the third support plate 34.

[0026] like Figure 7As shown, the straightening unit 31 includes a rotating V-shaped roller 311, a driven V-shaped roller 312, a first rotating shaft 313, a second rotating shaft 314, two second threaded rods 315, and two sliders 317. The first rotating shaft 313 and the second rotating shaft 314 are arranged parallel to each other. The rotating V-shaped roller 311 is fixedly sleeved around the first rotating shaft 313, and the driven V-shaped roller 312 is fixedly sleeved around the second rotating shaft 314. Both ends of the second rotating shaft 314 are rotatably connected to a first support plate 11, and both ends of the second rotating shaft 314 are rotatably connected to a slider. On 317, a sprocket 35 is fixedly sleeved around the outer periphery of the first rotating shaft 313. Each first support plate 11 has multiple square holes along the material flow direction. Each slider 317 is slidably connected to one square hole. The top of each slider 317 has a threaded hole 316, and a threaded rod 315 is threadedly connected to the threaded hole 316. The outer periphery of the threaded rod 315 is rotatably connected to the first support plate 11. Each square hole has a sliding groove 318 on both sides. The two ends of each slider 317 are slidably connected to the sliding grooves 318 on both sides of the square hole. According to the welding... The size of the square tube is determined by rotating the threaded rod 315. Since the slider 317 and the threaded rod 315 are threadedly connected, and the first support plate 11 and the threaded rod 315 are rotatably connected, rotating the threaded rod 315 will cause the slider 317 to move along the slide groove 318, thereby changing the position of the driven V-shaped roller 312. Because the power V-shaped roller 311 is fixed on the first support plate 11, the distance between the driven V-shaped roller 312 and the power V-shaped roller 311 will change, thus adapting to welded square tubes of different sizes. The second rotating motor 33 is existing technology. Model 3 is YZP112M1-4. When the second rotating motor 33 is started, the output shaft of the second rotating motor 33 drives the chain 32 to rotate. The chain 32 drives the sprocket 35 to rotate, and the sprocket 35 drives the power V-shaped roller 311 to rotate. The power roller 311 will clamp the welded square tube and move. Under the action of the friction of the contact surface of the driven V-shaped roller 312 of the welded square tube, the driven V-shaped roller 312 will also rotate together. Moreover, due to the parallel arrangement of the straightening components 31 and the special V-shaped structure of the roller, the square tube can be straightened during the movement.

[0027] like Figure 8 As shown, the square tube collecting assembly 4 includes a collecting panel 41 and two support legs 42. One side of the collecting panel 41 is hinged to each of the first support plates 11, and the other side of the collecting panel 41 is provided with two support legs 42. The upper end of each support leg 42 is hinged to the lower end of the collecting panel 41. The collecting panel 41 can collect the square tube and prevent the square tube from falling directly to the ground during the straightening process, causing damage and deformation. Also, due to its hinged structure, the collecting panel 41 and support legs 42 can be folded up to reduce the floor space when not in use.

[0028] The working process of the straightening device for welded square tubes: Two first support plates are set parallel to each other. The two ends of a second support plate are fixedly connected to one end of each of the first support plates to form a U-shaped support structure. Within the U-shaped support structure, a feeding assembly, a pipe surface leveling device, and a square tube straightening assembly are respectively arranged along the material travel direction. The square tube assembly is hinged to one end of the support assembly and located on one side of the square tube straightening assembly. The threaded rod 313 is rotated according to the size of the welded square tube. After adjustment, the welded square tube is placed between the spring rollers 21 of the feeding assembly 2. The spring rollers 21 are in contact with the spring... Under the action of 215, the welded square tube will be clamped, the controller will be started, and the controller will send a signal to the first rotating motor 235 and the second rotating motor 33. The baffle 231 of the feeding component 2 will move and push the welded square tube into the square tube straightening component 3. At the same time, the second rotating motor 33 will drive the chain 32. Under the action of the chain 32 and the sprocket 35, the rotating V-shaped roller 311 and the driven V-shaped roller 312 will drive the welded square tube to move in a straight line. The straightened square tube will be placed on the collection panel 41 of the square tube collection component 4.

[0029] The control method in this embodiment is controlled by a controller. The controller circuit can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this document is mainly used to protect mechanical devices, and the control method and circuit connection will not be explained in detail here.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A straightening device for welded square tubing, characterized by: The assembly includes a support component (1), a feeding component (2), a square tube straightening component (3), and a collecting square tube component (4). The support component (1) includes two first support plates (11) and a second support plate (12). The two first support plates (11) are arranged parallel to each other. The two ends of the second support plate (12) are respectively fixedly connected to one end of a first support plate (11) to form a U-shaped support structure. The feeding component (2) and the square tube straightening component (3) are respectively arranged in the U-shaped support structure along the material travel direction. The collecting square tube component (4) is hinged to one end of the support component (1) and located on one side of the square tube straightening component (3).

2. The apparatus of claim 1 wherein: The feeding assembly (2) includes multiple sets of square tube limiting units, and the multiple sets of square tube limiting units are arranged sequentially along the material travel direction. The U-shaped support structure is equipped with a support plate (22). Each set of square steel limiting units is located above the support plate (22). Each set of square steel limiting units includes two spring rollers (21), and the two spring rollers (21) are parallel to each other and opposite to each other. One end of each spring roller (21) is rolled to the periphery of the square tube, and the other end of the spring roller (21) is correspondingly installed on a first support plate (11).

3. The apparatus of claim 2 wherein: The spring roller (21) includes a first metal rod (211), a U-shaped frame (212), a roller (213), two second metal rods (214) and two springs (215). The roller (213) is rotatably connected to the first metal rod (211). The first metal rod (211) passes through the two side walls of the open end of the U-shaped frame (212) and is fixedly connected. The two second metal rods (214) are arranged in parallel, and one end of each second metal rod (214) is fixedly connected to the closed end of the U-shaped frame (212). The other end of each second metal rod (214) is slidably connected to the circular hole of the first support plate (11). Each spring (215) is correspondingly sleeved on one of the second metal rods (214). The two ends of the spring (215) abut against one side of the first support plate (11) and the closed end of the U-shaped frame (212) respectively.

4. The apparatus of claim 2 wherein: The support plate (22) has a strip-shaped hole along the direction of material flow. The pushing unit (23) is slidably connected in the strip-shaped hole. The pushing unit (23) includes a baffle (231), a third metal rod (232), two slide rails (233), a rack (234), a first rotating motor (235), a power gear (236), a driven gear (237), and a gear support frame (238). The third metal rod (232) is slidably connected in the square hole provided on the support plate (22) and can move along the square hole. The lower end of the baffle (231) is connected to one end of the third metal rod (232), and the other end of the third metal rod (232) is connected to the upper end of the gear support frame (238). (234) is located below the gear support frame (238) and installed on the second support plate (12). Two slides (233) are arranged in parallel on both sides of the rack (234) and installed on the second support plate (12). The two slides (233) are arranged opposite to each other. The lower end of the gear support frame (238) is slidably connected to the two slides (233). The power gear (236) and the driven gear (237) are rotatably connected to the gear support frame (238). The power gear (236) and the driven gear (237) mesh with each other. The first rotating motor (235) is fixed on the outside of the gear support frame (238). The output shaft of the first rotating motor (235) is fixedly connected to the power gear (236).

5. The apparatus of claim 1 wherein: The square tube straightening assembly (3) includes multiple straightening units (31), a chain (32), a second rotating motor (33), and a third support plate (34). The multiple straightening units (31) are arranged in parallel to each other. The two ends of each straightening unit (31) are rotatably connected to a first support plate (11). A sprocket (35) is fixedly sleeved on the periphery of each straightening unit (31). The multiple sprockets (35) form a synchronous transmission structure through the chain (32), and the inner ring of the chain (32) meshes with the periphery of the output gear of the second rotating motor (33). The second rotating motor (33) is fixedly installed on any one of the first support plates (11) through the third support plate (34).

6. The apparatus of claim 5 wherein: The straightening unit (31) includes a rotating V-shaped roller (311), a driven V-shaped roller (312), a first rotating shaft (313), a second rotating shaft (314), two second threaded rods (315), and two sliders (317). The first rotating shaft (313) and the second rotating shaft (314) are arranged parallel to each other. The rotating V-shaped roller (311) is fixedly sleeved around the first rotating shaft (313), and the driven V-shaped roller (312) is fixedly sleeved around the second rotating shaft (314). The two ends of the second rotating shaft (314) are respectively rotatably connected to a first V-shaped roller (312). On the support plate (11), the two ends of the second rotating shaft (314) are respectively rotatably connected to a slider (317). The outer periphery of the first rotating shaft (313) is fixedly fitted with a sprocket (35). Each first support plate (11) has multiple square holes along the material flow direction. Each slider (317) is slidably connected to a square hole. The top of each slider (317) is provided with a threaded hole (316). The threaded hole (316) is threadedly connected to a threaded rod (315), and the outer periphery of the threaded rod (315) is rotatably connected to the first support plate (11).

7. The device of claim 6, wherein: Each square hole has a groove (318) on both sides, and each slider (317) is slidably connected to the grooves (318) on both sides of the square hole.

8. The apparatus of claim 1 wherein: The collecting square tube assembly (4) includes a collecting panel (41) and two legs (42). One side of the collecting panel (41) is hinged to each first support plate (11), and the other side of the collecting panel (41) is provided with two legs (42). The upper end of each leg (42) is hinged to the lower end of the collecting panel (41).

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