Welded pipe extrusion device with adjustable upper roller

Abstract

The utility model provides a welded pipe extrusion device with an adjustable upper roller, which belongs to the technical field of welded pipe production equipment and comprises a base, the upper roller and a center line adjusting mechanism. The number of the upper rollers is two. The center line adjusting mechanism is connected to the machine base. The upper roller is connected to the center line adjusting mechanism. According to the welded pipe extrusion device with the adjustable upper rollers, if the upper rollers deviate in the using process, a worker can adjust the positions of the two upper rollers through the center line adjusting mechanism, so that the center line of the two upper rollers is located over the center line of a welded pipe, and the extrusion precision of the welded pipe is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of welded pipe production equipment, and more specifically relates to a welded pipe extrusion device with an adjustable upper roller. Background Art

[0002] Steel pipes are made of steel strips. The production of steel pipes requires multiple processes such as steel strip loading, straightening, feeding, steel pipe forming, and unloading. After the steel pipe is formed, it needs to be extruded by an extrusion device to make the welds tightly combined and the welding reliable.

[0003] When the existing five-roll extruder extrudes welded pipes, the two upper rollers need to remain symmetrical about the center line of the machine base. During the use of the five-roll extruder, the position of the upper roller will slightly shift during the lifting process. After a period of accumulation, the deviation of the upper roller will affect the accuracy of the welded pipe extrusion. Utility Model Content

[0004] The utility model aims to provide a welded pipe extrusion device with an adjustable upper roller, aiming to solve the problem of upper roller deviation.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a welded pipe extrusion device with an adjustable upper roller, comprising:

[0006] Machine base;

[0007] two upper rollers; and

[0008] A centerline adjustment mechanism is connected to the machine base; and the upper roller is connected to the centerline adjustment mechanism.

[0009] In a possible implementation, the midline adjustment mechanism includes:

[0010] A movable seat is slidably connected to the machine base; the upper roller is connected to the movable seat; and

[0011] An adjusting member is connected to the base and is used to adjust the position of the movable base.

[0012] In a possible implementation manner, a connecting ear is connected to the base, and the adjusting member is connected to the connecting ear.

[0013] In a possible implementation, the adjusting member is threadably matched with the connecting ear, and the adjusting member is rotationally matched with the movable seat.

[0014] In a possible implementation, the adjusting member is rotationally matched with the connecting ear, and the adjusting member is threadably matched with the movable seat.

[0015] In a possible implementation, the device further includes: a lifting mechanism connected to the centerline adjustment mechanism, and the upper roller is connected to the lifting mechanism.

[0016] In a possible implementation, the method further includes:

[0017] A spacing adjustment mechanism connected to the base;

[0018] An angle adjustment mechanism connected to the spacing adjustment mechanism; and

[0019] Two side rollers are connected to the angle adjustment mechanism, and the angle adjustment mechanism is used to adjust the angles of the side rollers.

[0020] In a possible implementation, the angle adjustment mechanism includes:

[0021] A mounting frame connected to the spacing adjustment mechanism;

[0022] A rotating seat, which is rotatably connected to the mounting frame, and the side rollers are mounted on the rotating seat; and

[0023] A first driving assembly is connected to the mounting frame, and the first driving assembly is connected to the rotating seat.

[0024] In a possible implementation, a mounting hole is formed on the mounting frame, a rotating shaft is connected to the rotating seat, the rotating shaft is inserted into the mounting hole, and the first driving assembly is connected to the rotating shaft.

[0025] In a possible implementation, the spacing adjustment mechanism includes:

[0026] A second drive assembly connected to the base; and

[0027] Two sliding supports are slidably connected to the machine base; the second driving assembly is used to drive the two sliding supports to move closer or farther away; and the two mounting frames are respectively mounted on the two sliding supports.

[0028] The beneficial effect of the welded pipe extrusion device with adjustable upper rollers provided by the utility model is that, compared with the prior art, if the upper roller of the welded pipe extrusion device with adjustable upper rollers is offset during use, the staff can adjust the positions of the two upper rollers through the centerline adjustment mechanism so that the centerlines of the two upper rollers are located directly above the centerline of the welded pipe, thereby ensuring the accuracy of welded pipe extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the structure of a welded pipe extrusion device with an adjustable upper roller provided in an embodiment of the utility model;

[0031] Figure 2 A schematic diagram of the structure of the centerline adjustment mechanism provided by an embodiment of the utility model;

[0032] Figure 3 A schematic diagram of the axial side of a first driving assembly provided in an embodiment of the utility model;

[0033] Figure 4 A schematic diagram of the structure of a first driving assembly provided in an embodiment of the utility model;

[0034] Figure 5 An axonometric schematic diagram of a second first drive assembly provided in an embodiment of the utility model;

[0035] Figure 6 A schematic diagram of the structure of a second first drive assembly provided in an embodiment of the utility model;

[0036] Figure 7 An axonometric diagram of a third first drive assembly provided in an embodiment of the utility model;

[0037] Figure 8 A schematic structural diagram of a third first drive assembly provided in an embodiment of the utility model.

[0038] Description of reference numerals:

[0039] 1. Machine base; 2. Side rollers; 3. Angle adjustment mechanism; 301. Mounting frame; 302. Rotating seat; 303. Rotating shaft; 304. Driving shaft; 305. Driving gear; 306. Driven gear; 307. Rack; 308. Driving member; 309. Turbine; 310. Worm; 4. Spacing adjustment mechanism; 401. Second driving assembly; 402. Sliding support; 5. Lifting mechanism; 6. Centerline adjustment mechanism; 61. Moving seat; 62. Adjusting member; 63. Connecting ear; 7. Upper roller. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] Reference Figure 1 and Figure 8 Now, the welded pipe extrusion device with adjustable upper roller provided by the utility model is described.

[0042] Reference Figure 1 A welded pipe extrusion device with adjustable upper rollers includes a machine base 1, two upper rollers 7, and a centerline adjustment mechanism 6 installed on the machine base 1. The two upper rollers 7 are installed on the centerline adjustment mechanism 6. The centerline adjustment mechanism 6 is used to adjust the position of the centerline between the two upper rollers 7.

[0043] During the use of the device of this embodiment, the positions of the two upper rollers 7 will be offset due to factors such as mechanical vibration. After a period of accumulation, the center line between the two upper rollers 7 will deviate from the axis of the welded pipe, resulting in a non-ignorable positional offset of the two upper rollers 7. The staff adjusts the positions of the two upper rollers 7 through the center line adjustment mechanism 6 so that the center line between the two upper rollers 7 is located directly above the axis of the welded pipe, thereby ensuring the processing accuracy of the device of this embodiment.

[0044] Reference Figure 2 Optionally, the centerline adjustment mechanism 6 includes: a moving seat 61 slidably mounted on the machine base 1 and an adjustment member 62 mounted on the machine base 1. A slideway is mounted on the machine base 1 using bolts, and the moving seat 61 is slidably mounted in the slideway, and the moving seat 61 can slide in the slideway. Two upper rollers 7 are mounted on the moving seat 61. The adjustment member 62 is used to adjust the position of the moving seat 61.

[0045] Optionally, a connecting ear 63 is installed on the machine base 1 using bolts, a threaded hole is provided on the connecting ear 63, and the adjusting member 62 passes through the threaded hole and is threadedly engaged with the connecting ear 63. A limiting groove is provided on the movable base 61, and a rotating disk is provided on the adjusting member 62, and the rotating disk is installed in the limiting groove.

[0046] When the adjusting member 62 rotates, the adjusting member 62 rotates along the threaded hole under the action of the thread. When the adjusting member 62 moves, the moving member drives the moving seat 61 to move together through the rotating disk and the limiting groove, thereby adjusting the positions of the two upper rollers 7.

[0047] Optionally, a connecting ear 63 is installed on the machine base 1 using bolts, a positioning hole is opened on the connecting ear 63, and the adjusting member 62 passes through the positioning hole. A threaded groove is opened on the movable base 61, and a threaded column is arranged on the adjusting member 62, which is installed in the threaded groove and matched with the thread of the threaded groove.

[0048] When the positions of the two upper rollers 7 need to be adjusted, the staff rotates the adjusting member 62. The adjusting member 62 rotates in the positioning hole, and the adjusting member 62 drives the threaded column to rotate. Under the action of the thread, the threaded column drives the moving seat 61 to move, thereby adjusting the positions of the two upper rollers 7.

[0049] Optionally, two lifting mechanisms 5 are installed on the movable seat 61, and the two upper rollers 7 are respectively installed on the two lifting mechanisms 5. The lifting mechanisms 5 are used to drive the upper rollers 7 to rise or fall. When the welded pipe is extruded, the lifting mechanism 5 drives the upper rollers 7 to fall, and when the welded pipe is not extruded, the lifting mechanism 5 drives the upper rollers 7 to rise.

[0050] Reference Figure 1 Optionally, the welded pipe extrusion device with an adjustable upper roller provided in this embodiment further includes: a spacing adjustment mechanism 4 installed on the machine base 1, an angle adjustment mechanism 3 installed on the spacing adjustment mechanism 4, and a side roller 2 installed on the angle adjustment mechanism 3. Two angle adjustment mechanisms 3 and two side rollers 2 are provided, and the two side rollers 2 are respectively installed on the two angle adjustment mechanisms 3. The two side rollers 2 are symmetrically arranged about the vertical center line of the machine base 1. The spacing adjustment mechanism 4 is used to adjust the distance between the two side rollers, and the angle adjustment mechanism 3 is used to adjust the inclination angle of the side rollers.

[0051] When processing welded pipes of different sizes, the staff adjusts the distance between the two side rollers 2 through the spacing adjustment mechanism 4, so that the distance between the two side rollers 2 can meet the processing requirements of welded pipes of different sizes. Then, the inclination angle of the two side rollers 2 is adjusted through the angle adjustment mechanism 3 to increase the contact area between the side rollers 2 and the welded pipe, so that the side rollers 2 can process welded pipes of different sizes without replacing the side roller 2 mold.

[0052] Optionally, the angle adjustment mechanism 3 includes: a mounting frame 301 connected to the spacing adjustment mechanism 4, a rotating seat 302 rotatably connected to the mounting frame 301, and a first driving assembly connected to the mounting frame 301. The side roller 2 is connected to the rotating seat 302, a mounting shaft is provided on the side roller 2, a rotating hole is provided on the rotating seat 302, the mounting shaft is inserted in the rotating hole, and the side roller 2 and the mounting shaft rotate in the rotating hole. The first driving assembly is used to drive the rotating seat 302 to rotate. When the rotating seat 302 rotates, it carries the side roller 2 to rotate together, thereby adjusting the inclination angle of the side roller 2.

[0053] Optionally, a mounting hole is provided on the mounting frame 301, and a rotating shaft 303 is provided on the rotating seat 302. The rotating shaft 303 is inserted into the mounting hole, and the rotating shaft 303 is horizontal and vertically arranged with the mounting axis. The first driving assembly is connected to the rotating shaft 303, and the first driving assembly is used to drive the rotating shaft 303 to rotate.

[0054] When the first driving assembly drives the rotating shaft 303 to rotate, the rotating shaft 303 drives the entire rotating seat 302 and the side roller 2 to rotate together, thereby adjusting the angle between the rotating axis of the side roller 2 and the horizontal plane. When the size of the welded pipe changes, the first driving assembly drives the rotating shaft 303 and the rotating seat 302 to rotate, thereby adjusting the inclination angle of the side roller 2.

[0055] Reference Figure 3 and 4 Optionally, the first driving assembly includes: a driving shaft 304 connected to the mounting frame 301, a driving gear 305 connected to the driving shaft 304, and a driven gear 306 connected to the rotating shaft 303. The driving shaft 304 is arranged perpendicular to the rotating shaft 303, one end of the driving shaft 304 is exposed outside the mounting frame 301, and the portion of the driving shaft 304 exposed to the mounting frame 301 is a polygonal column. The driving gear 305 is meshed with the driven gear 306.

[0056] When the size of the welded pipe changes, the staff rotates the drive shaft 304 using a wrench or other tool, and the drive shaft 304 drives the drive gear 305 to rotate. The drive gear 305 drives the driven gear 306 to rotate, the driven gear 306 drives the rotating shaft 303 to rotate, and the rotating shaft 303 drives the rotating shaft 303 and the side roller 2 to rotate, thereby adjusting the inclination angle of the side roller 2 and expanding the contact area between the side roller 2 and the welded pipe.

[0057] Reference Figure 5 and 6 A modified implementation of the above-mentioned first driving assembly is: the first driving assembly includes: a rack 307 slidably connected to the mounting frame 301, a driven gear 306 connected to the rotating shaft 303, and a driving member 308 connected to the mounting frame 301. The driving member 308 is connected to the rack 307, and the driving member 308 is used to drive the rack 307 to slide. When the driving member 308 drives the rack 307 to slide, the rack 307 drives the driven gear 306 to rotate, the driven gear 306 drives the rotating shaft 303 to rotate, and the rotating shaft 303 drives the rotating shaft 303 and the side roller 2 to rotate, thereby adjusting the inclination angle of the side roller 2 and expanding the contact area between the side roller 2 and the welded pipe. It should be noted that the driving member 308 can be a hydraulic cylinder or a cylinder or other components, as long as it can drive the rack 307 to slide.

[0058] Reference Figure 7 and 8 A modified implementation of the first driving assembly is as follows: the first driving assembly includes: a turbine 309 connected to the rotating shaft 303 and a worm 310 connected to the mounting frame 301. The worm 310 is arranged perpendicular to the rotating shaft 303, one end of the worm 310 extends out of the mounting frame 301, and the portion of the worm 310 extending out of the mounting frame 301 is a polygonal column. The worm 310 is meshed with the turbine 309.

[0059] When the inclination angle of the side roller 2 needs to be adjusted, the staff rotates the part of the worm 310 exposed at the mounting portion with the help of a tool, thereby rotating the entire worm 310. The worm 310 drives the turbine 309 to rotate, the turbine 309 drives the rotating shaft 303 to rotate, and the rotating shaft 303 drives the rotating seat 302 and the side roller 2 to rotate together, thereby adjusting the inclination angle of the side roller 2.

[0060] It should be noted that the structure of the first driving assembly is illustrative rather than restrictive, and those skilled in the art may use other structures to drive the rotating shaft 303 to rotate, such as Figure 2 A motor is added to the structure, the motor is installed on the mounting frame 301, the drive shaft 304 is connected with the power output shaft of the motor, and the drive shaft 304 is driven by the motor to rotate, which can further simplify the operation of the staff and reduce the labor intensity of the staff.

[0061] Optionally, the spacing adjustment mechanism 4 includes: a second driving assembly 401 connected to the base 1 and a sliding support 402 slidably connected to the base 1. Two sliding supports 402 are provided, and two mounting frames 301 are respectively installed on the two sliding supports 402. The second driving assembly 401 is used to drive the two sliding supports 402 to move closer or farther away at the same time.

[0062] A guide rail is provided on the machine base 1, and a slide groove is provided on the two sliding supports 402. The sliding supports 402 are slidably installed on the machine base 1 through the cooperation of the slide groove and the slide rail. The second drive assembly 401 includes a motor and a lead screw connected to the machine base 1. The lead screw is provided with two sections of threads in opposite directions. The two sliding supports 402 are installed on the lead screw and cooperate with the lead screw threads. When the motor drives the lead screw to rotate, the lead screw drives the two sliding supports 402 to move closer or farther away through the two sections of threads in opposite directions. It should be noted that the structure of the second drive assembly 401 is only illustrative and not restrictive. Those skilled in the art may adopt other structures, for example: the second drive assembly 401 includes two hydraulic cylinders, and the two hydraulic cylinders respectively drive the two sliding supports 402 to move closer or farther away.

[0063] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The welded pipe extrusion device with adjustable upper roller is characterized in that: include: Machine base (1); two upper rollers (7); and A centerline adjustment mechanism (6) is connected to the machine base (1); and the upper roller (7) is connected to the centerline adjustment mechanism (6).

2. The welded pipe extrusion device with adjustable upper roller as claimed in claim 1, characterized in that: The centerline adjustment mechanism (6) comprises: A movable seat (61) is slidably connected to the machine base (1); the upper roller (7) is connected to the movable seat (61); and An adjusting member (62) is connected to the machine base (1), and the adjusting member (62) is used to adjust the position of the movable base (61).

3. The welded pipe extrusion device with adjustable upper roller as claimed in claim 2, characterized in that: The machine base (1) is connected to a connecting ear (63), and the adjusting member (62) is connected to the connecting ear (63).

4. The welded pipe extrusion device with adjustable upper roller as claimed in claim 3, characterized in that: The adjusting member (62) is threadably matched with the connecting ear (63), and the adjusting member (62) is rotationally matched with the movable seat (61).

5. The welded pipe extrusion device with adjustable upper roller as claimed in claim 3, characterized in that: The adjusting member (62) is rotationally matched with the connecting ear (63), and the adjusting member (62) is threadably matched with the movable seat (61).

6. The welded pipe extrusion device with adjustable upper roller as claimed in claim 1, characterized in that: Also includes: A lifting mechanism (5) is connected to the centerline adjustment mechanism (6), and the upper roller (7) is connected to the lifting mechanism (5).

7. The welded pipe extrusion device with adjustable upper roller as claimed in claim 1, characterized in that: Also includes: A spacing adjustment mechanism (4) connected to the machine base (1); An angle adjustment mechanism (3) connected to the spacing adjustment mechanism (4); and Two side rollers are connected to the angle adjustment mechanism (3), and the angle adjustment mechanism (3) is used to adjust the angle of the side rollers.

8. The welded pipe extrusion device with an adjustable upper roller as claimed in claim 7, characterized in that: The angle adjustment mechanism (3) comprises: A mounting frame (301) connected to the spacing adjustment mechanism (4); A rotating seat (302) is rotatably connected to the mounting frame (301), and the side roller (2) is mounted on the rotating seat (302); and A first driving component is connected to the mounting frame (301), and the first driving component is connected to the rotating seat (302).

9. The welded pipe extrusion device with an adjustable upper roller as claimed in claim 8, characterized in that: The mounting frame (301) is provided with a mounting hole, the rotating seat (302) is connected with a rotating shaft (303), the rotating shaft (303) is inserted into the mounting hole, and the first driving component is connected to the rotating shaft (303).

10. The welded pipe extrusion device with adjustable upper roller according to claim 8, characterized in that: The spacing adjustment mechanism (4) comprises: A second driving assembly (401) connected to the base (1); and Two sliding supports (402) are slidably connected to the machine base (1); the second driving assembly (401) is used to drive the two sliding supports (402) to move closer or farther away; and the two mounting frames (301) are respectively mounted on the two sliding supports (402).

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