Special-shaped welded pipe pinch roll die

Abstract

The utility model relates to the technical field of pinch rolls, in particular to a special-shaped welded pipe pinch roll die which comprises two roll bodies, connecting plates are arranged on the opposite sides of the two roll bodies, a first fixing plate and a second fixing plate are fixedly connected to the bottom faces of the connecting plates, a guide plate is arranged on one side of each roll body, and a clamping plate is arranged on the other side of each roll body. The two ends of the guide plate are fixedly connected with connecting rings, the opposite faces of the first fixing plate and the second fixing plate are rotationally connected with the side faces of the adjacent connecting rings, and the side face, located on one side of the second fixing plate, of the roller body is rotationally connected with a side plate. According to the utility model, the side surfaces of the side plates are fixedly connected with the supporting plates, so that when the roller bodies need to be replaced, the distance between the two roller bodies can be increased, then the guide plates and the supporting plates are rotated downwards, and after the guide plates are rotated to be horizontal, the roller bodies can be pulled out from the bottom openings of the fixed plates II, so that the supporting plates move along the surfaces of the guide plates; and the roller body is supported through the guide plate, so that the roller body can be quickly taken out and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of pinch rollers, in particular to a pinch roller mould for special-shaped welded pipes. Background Art

[0002] In the production process of special-shaped welded pipes, pinch roller molds are sometimes used. Normal welded pipes can be passed through two pinch roller molds and transported by rotating the two pinch roller molds. The surface of the pinch roller mold is provided with protrusions. When the welded pipe passes through the protrusions on the surface of the pinch roller mold, the protrusions can squeeze the surface of the welded pipe, so that the side wall of the welded pipe is bent inward, and the cross section of the welded pipe changes from the original square to a special shape, thereby forming a special-shaped welded pipe. When the existing pinch roller molds for special-shaped welded pipes are used, most of the pinch roller molds are fixed to the corresponding mounting frame with multiple bolts. Although they have a good fixing effect, when it is necessary to produce special-shaped welded pipes with different cross-sectional shapes, the corresponding pinch roller molds need to be replaced, and the method of fixing with multiple bolts makes it more complicated to disassemble and install the pinch roller molds, and some pinch roller molds are relatively heavy, so it is inconvenient to disassemble and install the pinch roller molds, which is not conducive to the rapid replacement of the pinch roller molds. Utility Model Content

[0003] The utility model aims to provide a special-shaped welded pipe pinch roller die to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A special-shaped welded pipe clamping roller mold comprises two roller bodies, and a connecting plate is provided on the opposite sides of the two roller bodies, and a fixing plate 1 and a fixing plate 2 are fixedly connected to the bottom surface of the connecting plate, and a guide plate is provided on one side of the roller body, and connecting rings are fixedly connected to both ends of the guide plate, and the opposite surfaces of the fixing plate 1 and the fixing plate 2 are rotatably connected to the side surfaces of adjacent connecting rings, and the side surface of the roller body located on the side of the fixing plate 2 is rotatably connected to a side plate, and the side surface of the side plate is fixedly connected to a support plate in contact with the side surface of the guide plate, and the side surface of the support plate is fixedly connected to two connecting seats, and the inner side surface of the connecting seat is rotatably connected to a round rod in contact with the side surface of the roller body.

[0006] Furthermore, mounting frames are provided on the sides of the two connecting plates, the top of the inner side surface of the mounting frame is slidingly connected to the side surface of the connecting plate located at the top, and the bottom of the inner side surface of the mounting frame is fixedly connected to the side surface of the connecting plate located at the bottom, two hydraulic rods are fixedly connected to the inner top surface of the mounting frame, and the output end of the hydraulic rod is transmission-connected to the top surface of the connecting plate located at the top.

[0007] Furthermore, two connecting grooves are provided on the side surface of the guide plate corresponding to the support plate, and the inner side surface of the connecting groove is rotatably connected to a plurality of rolling blocks contacting the inner side surface of the support plate.

[0008] Furthermore, a pull rod is fixedly connected to the side of the side plate, and a locking plate is slidably connected to the inner side of the second fixed plate. Grooves are provided at both ends of the bottom of the locking plate, and the inner sides of the two grooves are in contact with the side of the pull rod, and the two sides of the fixed plate are screwed together with positioning screws corresponding to the top of the locking plate.

[0009] Furthermore, the two roller bodies are equipped with a connecting frame, the bottom surface of the connecting frame is fixedly connected with four roller seats, the inner side surface of the connecting frame is slidably connected with a sliding frame, and the top surface of the sliding frame is fixedly connected with a placement plate.

[0010] Furthermore, the side surface of the fixing plate 1 located on one side of the fixing plate 2 is fixedly connected to a positioning plate, the side surface of the fixing plate 2 located on one side of the positioning plate is fixedly connected to an arc-shaped rod, and the positioning plate and the side surface of the arc-shaped rod are both rotatably connected to the inner side surface of the adjacent connecting ring, and the inner side surface of the arc-shaped rod is in contact with the side surface of the side plate.

[0011] Furthermore, a motor is fixedly connected to the side of the positioning plate away from the roller body, the output end of the motor is transmission-connected to a transmission shaft rotatably connected to the inner side of the positioning plate, a rectangular block is fixedly connected to the side of the transmission shaft, a transmission block in contact with the transmission shaft is fixedly connected to the side of the roller body, and a rectangular groove is opened on the side of the transmission block to be slidably connected to the rectangular block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The side plate is fixedly connected with a support plate, and the welded pipe can be transported by two rollers, and the side wall of the welded pipe can be squeezed by the surface of the roller, so that the cross section of the welded pipe changes from square to irregular. When the roller needs to be replaced, the distance between the two rollers can be pulled apart, and then the guide plate and the support plate can be rotated downward. After the guide plate is rotated to a horizontal level, the roller can be pulled out from the bottom opening of the second fixed plate, and the support plate can be moved along the surface of the guide plate. The roller is supported by the guide plate, which is convenient for quickly taking out and replacing the roller.

[0014] 2. A positioning plate is slidably connected to the inner side of the second fixing plate. The arc rod can support the side plate. The positioning plate can support the roller body through the transmission shaft, thereby supporting and limiting the roller body. The positioning plate can block the side of the side plate and prevent the side plate from rotating, thereby fixing the roller body more stably between the first fixing plate and the second fixing plate. The fixation is relatively simple, which is convenient for the quick disassembly and installation of the roller body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a special-shaped welded pipe pinch roller die of the utility model;

[0016] Figure 2It is a schematic diagram of the internal structure of the mounting frame in the utility model;

[0017] Figure 3 It is a schematic diagram of the roller structure in the utility model;

[0018] Figure 4 It is a schematic diagram of the support plate structure in the utility model;

[0019] Figure 5 It is a structural schematic diagram of a fixed plate in the utility model;

[0020] Figure 6 It is a schematic diagram of the guide plate structure in the utility model;

[0021] Figure 7 It is a schematic diagram of the internal structure of the second fixing plate in the utility model;

[0022] Figure 8 It is a schematic diagram of the connection frame structure in the utility model.

[0023] In the figure: 1. roller body; 11. side plate; 12. support plate; 13. round rod; 14. transmission block; 15. rectangular groove; 16. pull rod; 2. connecting plate; 21. fixing plate 1; 22. fixing plate 2; 24. positioning plate; 25. positioning screw; 26. positioning plate; 27. arc rod; 3. mounting frame; 31. hydraulic rod; 4. motor; 41. transmission shaft; 42. rectangular block; 5. guide plate; 51. connecting ring; 52. rolling block; 6. connecting frame; 61. sliding frame; 62. placement plate; 63. roller seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6In the embodiment of the utility model, a special-shaped welded pipe clamping roller mold includes two roller bodies 1, and connecting plates 2 are provided on the opposite sides of the two roller bodies 1. The bottom surface of the connecting plate 2 is fixedly connected with a fixing plate 1 21 and a fixing plate 2 22, and a guide plate 5 is provided on one side of the roller body 1. Both ends of the guide plate 5 are fixedly connected with connecting rings 51. The opposite surfaces of the fixing plate 1 21 and the fixing plate 2 22 are rotatably connected to the side surfaces of the adjacent connecting rings 51. The side surface of the roller body 1 located on the side of the fixing plate 22 is rotatably connected with a side plate 11, and the side surface of the side plate 11 is fixedly connected with a support plate 12 in contact with the side surface of the guide plate 5. The side surface of the support plate 12 is fixedly connected with two connecting seats, and the inner side surface of the connecting seat is rotatably connected with a round rod 13 in contact with the side surface of the roller body 1, and two connecting grooves are provided on the side surface of the guide plate 5 corresponding to the support plate 12, and the inner side surface of the connecting groove is rotatably connected with a plurality of rolling blocks 52 in contact with the inner side surface of the support plate 12.

[0026] Specifically, the two roller bodies 1 are symmetrically arranged up and down, and the welded pipe can be transported by the two roller bodies 1, and the side wall of the welded pipe can be squeezed by the surface of the roller body 1, so that the side wall of the welded pipe is bent inward, and the cross section of the welded pipe is squeezed from a square to a special shape, thereby forming a special-shaped welded pipe, and the guide plate 5 is located on the side of the roller body 1 to avoid affecting the transportation of the special-shaped welded pipe. When the roller body 1 needs to be replaced, the distance between the two roller bodies 1 is pulled apart, and the guide plate 5 and the support plate 12 can be rotated downward. After the guide plate 5 is rotated to a horizontal position, the guide plate 5 can support the support plate 12 through the rolling block 52, and the support plate 12 can support the roller body 1 through the round rod 13. At this time, the roller body 1 can be pulled out from the bottom opening of the fixed plate 22, so that the support plate 12 moves along the surface of the guide plate 5, so that the roller body 1 can be quickly taken out and replaced.

[0027] Embodiment 1

[0028] like Figure 3-5 As shown, in the present embodiment, the side surface of the fixing plate 1 21 located on one side of the fixing plate 22 is fixedly connected with a positioning plate 26, the side surface of the fixing plate 22 located on one side of the positioning plate 26 is fixedly connected with an arc-shaped rod 27, and the sides of the positioning plate 26 and the arc-shaped rod 27 are both rotatably connected with the inner side surface of the adjacent connecting ring 51, the inner side surface of the arc-shaped rod 27 contacts the side surface of the side plate 11, the side of the positioning plate 26 away from the roller body 1 is fixedly connected with a motor 4, the output end of the motor 4 is transmission-connected with a transmission shaft 41 rotatably connected with the inner side surface of the positioning plate 26, the side surface of the transmission shaft 41 is fixedly connected with a rectangular block 42, the side surface of the roller body 1 is fixedly connected with a transmission block 14 in contact with the transmission shaft 41, and the side surface of the transmission block 14 is provided with a rectangular groove 15 slidably connected with the rectangular block 42.

[0029] In this embodiment, the positioning plate 26 can support the adjacent connecting ring 51, the arc rod 27 can support the adjacent connecting ring 51, thereby supporting the guide plate 5, the arc rod 27 can limit and support the side plate 11, the positioning plate 26 can support the transmission shaft 41, the transmission shaft 41 can support the transmission block 14 through the rectangular groove 15 and the rectangular block 42, thereby supporting both ends of the roller body 1, the motor 4 can drive the transmission shaft 41 to rotate, the transmission shaft 41 can drive the transmission block 14 to rotate through the rectangular block 42 and the rectangular groove 15, thereby driving the roller body 1 to rotate, and transport the special-shaped welded pipe. When the roller body 1 is pulled out from the bottom opening of the fixing plate 22, the rectangular groove 15 will directly disengage from the rectangular block 42, which is convenient for the installation and disassembly of the roller body 1.

[0030] like Figure 7 As shown, in this embodiment, a pull rod 16 is fixedly connected to the side of the side panel 11, and a locking plate 24 is slidably connected to the inner side of the fixing plate 22. Grooves are provided at both ends of the bottom of the locking plate 24, and the inner sides of the two grooves are in contact with the side of the pull rod 16. The side of the fixing plate 22 corresponds to the top of the locking plate 24 and is screwed together with a positioning screw 25.

[0031] During specific implementation, the groove at the bottom of the locking plate 24 can be inserted into the pull rod 16. At this time, the locking plate 24 can prevent the side plate 11 from rotating through the pull rod 16, limiting the angle between the support plate 12 and the guide plate 5. The end of the pull rod 16 has a protrusion, which contacts the side of the locking plate 24. In this way, the locking plate 24 can prevent the side plate 11 from moving toward the fixed plate 22 through the protrusion at the end of the pull rod 16, thereby preventing the roller body 1 from moving horizontally and limiting the roller body 1 between the fixed plate 1 21 and the fixed plate 22. The positioning screw 25 can block the top of the locking plate 24 and prevent the locking plate 24 from moving upward, so that the position of the roller body 1 is completely fixed. The fixation is relatively simple. The positioning screw 25 can be unscrewed. At this time, the locking plate 24 can be moved toward the inside of the fixed plate 22, and the locking plate 24 can be retracted into the fixed plate 22. Then, The locking plate 24 is screwed into the fixed plate 22, and the inner top surface of the locking plate 24 is blocked by the positioning screw 25 to limit the locking plate 24 inside the fixed plate 22. Then the side plate 11 can be rotated by the pull rod 16, and the side plate 11 can drive the support plate 12 to rotate. Since the support plate 12 and the guide plate 5 are in contact with each other, the support plate 12 can drive the guide plate 5 to rotate, thereby rotating the guide plate 5 to the bottom of the roller body 1. Then the side plate 11 can be pulled by the pull rod 16 to pull the roller body 1 out of the bottom opening of the fixed plate 22. The gasket ring that is slidably connected to the inner side surface of the arc rod 27 can be rotated on the side of the side plate 11, so that the side plate 11 contacts the inner wall of the arc rod 27 through the gasket ring, and the arc rod 27 supports the side plate 11 through the gasket ring, and the gasket ring facilitates the side plate 11 to rotate and translate relative to the arc rod 27.

[0032] Embodiment 2

[0033] Based on the first embodiment, Figure 2 As shown, in this embodiment, mounting frames 3 are provided on the sides of the two connecting plates 2, the top of the inner side surface of the mounting frame 3 is slidingly connected to the side surface of the connecting plate 2 located at the top, and the bottom of the inner side surface of the mounting frame 3 is fixedly connected to the side surface of the connecting plate 2 located at the bottom, and two hydraulic rods 31 are fixedly connected to the inner top surface of the mounting frame 3, and the output end of the hydraulic rod 31 is transmission-connected to the top surface of the connecting plate 2 located at the top.

[0034] During specific implementation, the mounting frame 3 can be fixed on the corresponding equipment. When the two rollers 1 convey the special-shaped welded pipe, the top roller 1 can be moved downward by the hydraulic rod 31, so that the top roller 1 presses the special-shaped welded pipe onto the bottom roller 1. When the roller 1 needs to be replaced, the connecting plate 2 at the top can be driven by the hydraulic rod 31 to move, so that the top roller 1 moves upward, and the distance between the two rollers 1 is increased, so as to facilitate the rotation of the top guide plate 5 to the bottom of the roller 1.

[0035] like Figure 8 As shown, in this embodiment, two roller bodies 1 are equipped with a connecting frame 6, four roller seats 63 are fixedly connected to the bottom surface of the connecting frame 6, a sliding frame 61 is slidably connected to the inner side surface of the connecting frame 6, and a placement plate 62 is fixedly connected to the top surface of the sliding frame 61.

[0036] During specific implementation, a corresponding lifting rod, such as an electric telescopic rod, can be set inside the connecting frame 6. The placing plate 62 can be lifted up by the lifting rod, the height of the placing plate 62 can be adjusted, and the placing plate 62 can be moved to the bottom of the corresponding supporting plate 12. In this way, after the roller body 1 is pulled out, the supporting plate 12 can be moved to the top surface of the placing plate 62. At the same time, when installing a new roller body 1, the new roller body 1 can be placed on the placing plate 62, and the placing plate 62 can be lifted up by the lifting rod, and the new roller body 1 can be moved to the side of the corresponding guide plate 5. Then the roller body 1 is inserted between the fixing plate 1 21 and the fixing plate 2 22. The roller seat 63 facilitates the movement of the connecting frame 6 and the transportation of the roller body 1 through the connecting frame 6. A number of ball bearings can be set on the surface of the placing plate 62 to facilitate the translation of the supporting plate 12 on the placing plate 62.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A special-shaped welded pipe pinch roller die, characterized in that: It comprises two roller bodies, and connecting plates are arranged on opposite sides of the two roller bodies, and fixing plate 1 and fixing plate 2 are fixedly connected to the bottom surface of the connecting plate, and a guide plate is arranged on one side of the roller body, and connecting rings are fixedly connected to both ends of the guide plate, and the opposite surfaces of fixing plate 1 and fixing plate 2 are rotatably connected to the side surfaces of adjacent connecting rings, and the side surface of the roller body located on the side surface of fixing plate 2 is rotatably connected to a side plate, and the side surface of the side plate is fixedly connected to a support plate in contact with the side surface of the guide plate, and two connecting seats are fixedly connected to the side surface of the support plate, and the inner side surface of the connecting seat is rotatably connected to a round rod in contact with the side surface of the roller body.

2. The special-shaped welded pipe pinch roller mold according to claim 1, characterized in that: Mounting frames are provided on the sides of the two connecting plates, the top of the inner side surface of the mounting frame is slidably connected to the side surface of the connecting plate located at the top, and the bottom of the inner side surface of the mounting frame is fixedly connected to the side surface of the connecting plate located at the bottom, and two hydraulic rods are fixedly connected to the inner top surface of the mounting frame, and the output end of the hydraulic rod is transmission-connected to the top surface of the connecting plate located at the top.

3. The special-shaped welded pipe pinch roller mold according to claim 1, characterized in that: The side surface of the guide plate is provided with two connection grooves corresponding to the support plate, and the inner side surface of the connection groove is rotatably connected with a plurality of rolling blocks contacting the inner side surface of the support plate.

4. The special-shaped welded pipe pinch roller die according to claim 1, characterized in that: The side surface of the side plate is fixedly connected with a pull rod, and the inner side surfaces of the two fixed plates are slidably connected with a locking plate. Both ends of the bottom of the locking plate are provided with grooves, and the inner sides of the two grooves are in contact with the side surface of the pull rod. The two sides of the fixed plate correspond to the top of the locking plate and are screwed together with positioning screws.

5. The special-shaped welded pipe pinch roller die according to claim 1, characterized in that: The two roller bodies are matched with a connecting frame, the bottom surface of the connecting frame is fixedly connected with four roller seats, the inner side surface of the connecting frame is slidably connected with a sliding frame, and the top surface of the sliding frame is fixedly connected with a placement plate.

6. The special-shaped welded pipe pinch roller die according to claim 1, characterized in that: The side surface of the fixing plate 1 located on one side of the fixing plate 2 is fixedly connected with a positioning plate, and the side surface of the fixing plate 2 located on one side of the positioning plate is fixedly connected with an arc-shaped rod, and the positioning plate and the side surface of the arc-shaped rod are both rotatably connected to the inner side surface of the adjacent connecting ring, and the inner side surface of the arc-shaped rod contacts the side surface of the side plate.

7. The pinch roller die for special-shaped welded pipe according to claim 6, characterized in that: A motor is fixedly connected to the side of the positioning plate away from the roller body, and the output end of the motor is transmission-connected to a transmission shaft rotatably connected to the inner side of the positioning plate. A rectangular block is fixedly connected to the side of the transmission shaft, and a transmission block in contact with the transmission shaft is fixedly connected to the side of the roller body. A rectangular groove is provided on the side of the transmission block that is slidably connected to the rectangular block.

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