Spiral steel pipe blank joint welding device

Abstract

The invention relates to the technical field of spiral steel pipe machining, and particularly discloses a spiral steel pipe blank joint welding device which comprises a base, a supporting frame is fixedly connected to the right side of the base, a shape adjusting device is arranged on the left side of the supporting frame, a moving mechanism is arranged at the upper end of the supporting frame, a welding mechanism is arranged at the lower end of the moving mechanism, and a rolling assembly is arranged on the welding mechanism. A transmission assembly and a supporting assembly are arranged at the upper end of the base, and a cleaning mechanism is arranged at the upper end of the supporting assembly and used for cleaning weld joints of the spiral steel pipe. A plurality of sets of bearing assemblies are arranged on the two sides of the upper end of the base, and the front bearing assembly and the rear bearing assembly form one set. When a welding seam of the spiral steel pipe is cleaned, cleaning work can be carried out while welding is carried out, and therefore the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of spiral steel pipe processing, in particular to a spiral steel pipe blank seam welding device. Background Art

[0002] Spiral pipe is a common pipe material characterized by its helical shape. It is made by rolling low-carbon or low-alloy structural steel strip into a tube blank at a specific helical angle (called the forming angle). The tube seam is then welded together using submerged arc welding to form the spiral pipe. The manufacturing process includes shearing the steel plate, rolling it into the pipe shape, welding the spiral seam, removing weld slag, trimming the pipe, and finally performing non-destructive testing and surface treatment.

[0003] The technical problem to be solved by the present application is: currently, when spiral steel pipe blanks are seam-welded, a seam welding device is generally used to weld the seams. Although the existing seam welding device can achieve the purpose of welding when used, after the welding is completed, the welding slag still needs to be manually cleaned. Therefore, it is necessary to design a spiral steel pipe blank seam welding device. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention aims to provide a spiral steel pipe blank seam welding device.

[0005] The technical solution adopted by the present invention is: a spiral steel pipe blank seam welding device, comprising a base, a support frame fixedly connected to the right side of the base, a shape adjustment device provided on the left side of the support frame, a moving mechanism provided at the upper end of the support frame, a welding mechanism provided at the lower end of the moving mechanism, and a rolling assembly provided on the welding mechanism;

[0006] A transmission assembly and a support assembly are provided at the upper end of the base, and a cleaning mechanism is provided at the upper end of the support assembly, and the cleaning mechanism is used to clean the welds of the spiral steel pipe; supporting assemblies are provided on both sides of the upper end of the base, and the supporting assemblies are provided in multiple groups, and the front and rear two supporting assemblies form a group.

[0007] In some embodiments, the moving mechanism includes a screw, a baffle, a moving seat, a first motor, a first synchronous wheel, a second synchronous wheel and a synchronous belt. The support frame is rotatably connected to a screw, and two screws are provided. The left end of the screw is rotatably connected to the baffle, the circumferential surface of the screw is threadedly connected to the moving seat, and the right end of the screw is fixedly connected to the second synchronous wheel; the upper end of the support frame is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the first synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected by a synchronous belt.

[0008] In some embodiments, the welding mechanism includes an electric telescopic rod, a storage barrel, a flux gun head, a fixed plate, a wire guide tube and an electrode head. The upper end of the movable seat is fixedly connected to the electric telescopic rod, the protruding end of the electric telescopic rod passes through the movable seat and is slidably connected to the movable seat, the protruding end of the electric telescopic rod is fixedly connected to the storage barrel, the lower end of the storage barrel is fixedly connected to the flux gun head, the circumferential surface of the lower end of the storage barrel is fixedly connected to the fixed plate, the lower end of the fixed plate is fixedly connected to the wire guide tube and the electrode head, and the end of the wire guide tube away from the fixed plate is connected to the flux gun head.

[0009] In some embodiments, the rolling assembly includes a guide rod, a first spring, a mounting frame and a rolling roller, the guide rod is slidably connected to the inside of the fixed plate, the lower end of the guide rod is fixedly connected to the mounting frame, the rolling roller is rotatably connected to the inside of the mounting frame, and a first spring is provided on the circumferential surface of the guide rod, one end of the first spring is fixedly connected to the mounting frame, and the other end of the first spring is fixedly connected to the fixed plate.

[0010] In some embodiments, the support assembly includes a support column, a movable plate, a second spring, a slide rail and a slider, the upper end of the base is fixedly connected to the support column, the circumferential surface of the support column is slidably connected to the movable plate, the upper end of the movable plate is fixedly connected to the slide rail, and the inside of the slide rail is slidably connected to the slider; the circumferential surface of the support column is provided with a second spring, one end of the second spring is fixedly connected to the movable plate, and the other end of the second spring is fixedly connected to the base.

[0011] In some embodiments, the cleaning mechanism includes a fixed frame, a rotating roller, a belt, a wire brush and a second motor. The upper end of the slider is fixedly connected to the fixed frame, and the fixed frame is rotatably connected to the rotating roller. Two rotating rollers are provided and symmetrically distributed inside the fixed frame. The two rotating rollers are connected by a belt, and the surface of the belt is fixedly connected to the wire brush; the side end of the fixed frame is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to the rotating roller.

[0012] In some embodiments, the transmission assembly includes a transmission rod, a connecting rod, a rack, a gear, a swing rod, a bearing seat and a rotating shaft, and the transmission rod is slidably connected inside the support frame; the upper end of the base is fixedly connected to the bearing seat, and the bearing seat is rotatably connected to the rotating shaft, and both ends of the rotating shaft are fixedly connected to gears, and the lower end of the gear is engaged with a rack, and the end of the rack away from the gear is fixedly connected to the connecting rod, and the connecting rod and the transmission rod are fixedly connected; the circumferential surface of the rotating shaft is fixedly connected to a swing rod, and the end of the swing rod away from the rotating shaft is rotatably connected to the fixed frame; four swing rods are provided, and the left and right swing rods form a group, and the two swing rods are parallel to each other.

[0013] In some embodiments, the upper end of the base is fixedly connected to a limiting groove, and the rack is located inside the limiting groove and is slidably connected to the limiting groove.

[0014] In some embodiments, the supporting assembly includes a supporting bracket, a reinforcement rod and a roller. The upper end of the base is fixedly connected to the supporting bracket, the upper end of the supporting bracket is fixedly connected to the reinforcement rod, and the upper end of the supporting bracket is rotatably connected to the roller.

[0015] The beneficial effects of the present invention are:

[0016] (1) By setting up a support component and a cleaning mechanism, when in use, the support component is used to support the cleaning mechanism, so that the cleaning mechanism is always adaptively in contact with the spiral steel pipe, which is conducive to the cleaning mechanism being in close contact with the lower end of the spiral steel pipe. Then, the cleaning mechanism works to clean the weld, so that when cleaning the weld of the spiral steel pipe, cleaning work can be carried out while welding, thereby improving work efficiency.

[0017] (2) By setting a transmission rod, a connecting rod, a rack, a gear, a swing rod, a bearing seat and a rotating shaft, when in use, the mobile seat approaches the support frame, and when the mobile seat contacts the transmission rod, the transmission rod will be squeezed to move to the right, and then the rack can be driven to move with the cooperation of the connecting rod, and then the rotating shaft can be driven to rotate inside the bearing seat with the cooperation of the gear. As the rotating shaft rotates, the fixed frame can be driven downward with the cooperation of the swing rod, so that the wire brush is away from the lower end of the spiral steel pipe, which makes it easy to replace the damaged wire brush. After the wire brush is replaced, the weld of the spiral steel pipe can be better cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the present invention in conjunction with a spiral steel pipe;

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged view of part A;

[0021] Figure 4 This is a structural diagram of the welding mechanism of the present invention from a first perspective;

[0022] Figure 5 This is a structural diagram of the welding mechanism of the present invention from a second viewing angle;

[0023] Figure 6 For the present invention Figure 5 Enlarged view of part B;

[0024] Figure 7This is a schematic structural diagram of the transmission assembly, support assembly and cleaning mechanism of the present invention after they are coordinated from a first perspective;

[0025] Figure 8 For the present invention Figure 7 Enlarged view of part C in the middle;

[0026] Figure 9 A schematic diagram of the structure of the transmission assembly, support assembly and cleaning mechanism of the present invention after being coordinated from a second perspective;

[0027] Figure 10 For the present invention Figure 9 Enlarged view of part D in the middle;

[0028] Figure 11 It is a schematic diagram of the structure inside the cleaning mechanism of the present invention;

[0029] Figure 12 For the present invention Figure 11 Enlarged view of part E in the middle.

[0030] Legend:

[0031] 1. Base; 2. Support frame; 3. Moving mechanism; 301. Screw; 302. Baffle; 303. Moving seat; 304. First motor; 305. First synchronous pulley; 306. Second synchronous pulley; 307. Synchronous belt; 4. Shaping device; 5. Welding mechanism; 501. Electric telescopic rod; 502. Storage barrel; 503. Flux gun head; 504. Fixing plate; 505. Wire guide tube; 506. Electrode head; 6. Rolling assembly; 601. Guide rod; 602. First spring; 603. Mounting frame; 604. Rolling roller; 7. Transmission assembly ;701, transmission rod; 702, connecting rod; 703, rack; 704, gear; 705, swing rod; 706, bearing seat; 707, rotating shaft; 8, support assembly; 801, support column; 802, movable plate; 803, second spring; 804, slide rail; 805, slider; 9, cleaning mechanism; 901, fixed frame; 902, rotating roller; 903, belt; 904, wire brush; 905, second motor; 10, supporting assembly; 1001, supporting frame; 1002, reinforcement rod; 1003, roller; 11, limit groove. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1 to 12The present invention provides a technical solution: a spiral steel pipe blank seam welding device, comprising a base 1, a support frame 2 is fixedly connected to the right side of the base 1, a shaping device 4 is provided on the left side of the support frame 2, a moving mechanism 3 is provided at the upper end of the support frame 2, a welding mechanism 5 is provided at the lower end of the moving mechanism 3, and a rolling assembly 6 is provided on the welding mechanism 5; a transmission assembly 7 and a support assembly 8 are provided at the upper end of the base 1, a cleaning mechanism 9 is provided at the upper end of the support assembly 8, and the cleaning mechanism 9 is used to clean the weld of the spiral steel pipe; supporting assemblies 10 are provided on both sides of the upper end of the base 1, and a plurality of supporting assemblies 10 are provided, and the front and rear supporting assemblies 10 form a group.

[0034] During use, the steel plate is spirally bent by the shaping device 4 to form a spiral-shaped tube blank. The shaping device 4 is a prior art and will not be described in detail here. The spiral-shaped tube blank can be supported by the supporting assembly 10, which is beneficial for moving the tube blank. When welding the tube blank, the position of the welding mechanism 5 is adjusted by the moving mechanism 3 so that the welding mechanism 5 is located at the weld of the spiral steel pipe, which is convenient for welding the weld of the spiral steel pipe. When the welding mechanism 5 is welding, the weld can be rolled with the cooperation of the rolling assembly 6, which is beneficial for improving the quality of the weld. When the weld of the spiral steel pipe passes through the cleaning mechanism 9, the weld can be cleaned with the cooperation of the cleaning mechanism 9, so that when cleaning the weld of the spiral steel pipe, the cleaning work can be carried out while welding, thereby improving work efficiency; since the cleaning mechanism 9 is located at the upper end of the support assembly 8, with the cooperation of the support assembly 8, it is beneficial for the cleaning mechanism 9 to be in close contact with the lower end of the spiral steel pipe, thereby improving the cleaning effect; when it is necessary to replace the cleaning end of the cleaning mechanism 9, the moving mechanism 3 returns to the initial position, and at this time, with the cooperation of the transmission assembly 7, the cleaning mechanism 9 can be driven away from the lower end of the spiral steel pipe, thereby facilitating the replacement of the cleaning end of the cleaning mechanism 9.

[0035] The moving mechanism 3 includes a screw rod 301, a baffle 302, a moving seat 303, a first motor 304, a first synchronous wheel 305, a second synchronous wheel 306 and a synchronous belt 307. The support frame 2 is internally rotatably connected to the screw rod 301. There are two screw rods 301. The left end of the screw rod 301 is rotatably connected to the baffle 302. The circumferential surface of the screw rod 301 is threadedly connected to the moving seat 303. The right end of the screw rod 301 is fixedly connected to the second synchronous wheel 306. The upper end of the support frame 2 is fixedly connected to the first motor 304. The output end of the first motor 304 is fixedly connected to the first synchronous wheel 305. The first synchronous wheel 305 is connected to the second synchronous wheel 306 by a synchronous belt 307. During operation, the first motor 304 works. At this time, the first synchronous wheel 305, the second synchronous wheel 306 and the synchronous belt 307 cooperate to simultaneously drive the two screw rods 301 to rotate. As the screw rod 301 rotates, the movable seat 303 can be driven to move. As the movable seat 303 moves, the welding mechanism 5 is also driven to move, which makes it convenient to align the welding mechanism 5 with the weld. At the same time, with the cooperation of the baffle 302, the movable seat 303 can be effectively prevented from separating from the screw rod 301.

[0036] The welding mechanism 5 includes an electric telescopic rod 501, a storage barrel 502, a flux gun head 503, a fixed plate 504, a wire guide tube 505 and an electrode head 506. The upper end of the movable seat 303 is fixedly connected to the electric telescopic rod 501. The extended end of the electric telescopic rod 501 passes through the movable seat 303 and is slidably connected to the movable seat 303. The extended end of the electric telescopic rod 501 is fixedly connected to the storage barrel 502. The lower end of the storage barrel 502 is fixedly connected to the flux gun head 503. The circumferential surface of the lower end of the storage barrel 502 is fixedly connected to the fixed plate 504. The lower end of the fixed plate 504 is fixedly connected to the wire guide tube 505. The end of the wire guide tube 505 away from the fixed plate 504 is connected to the flux gun head 503. During operation, when the flux gun head 503 is aligned with the weld, the electric telescopic rod 501 extends, and with the cooperation of the storage barrel 502, the flux gun head 503 can be driven close to the weld, and then with the cooperation of the fixed plate 504, the electrode head 506 is also driven downward, so that the electrode head 506 contacts the spiral steel pipe, and then the welding wire passes through the wire guide tube 505 and enters the interior of the welding gun head, so that the welding wire contacts the weld, and thus submerged arc welding of the weld can be achieved with the cooperation of the flux.

[0037] The rolling assembly 6 includes a guide rod 601, a first spring 602, a mounting frame 603 and a rolling roller 604. The guide rod 601 is slidably connected to the inside of the fixed plate 504, and the lower end of the guide rod 601 is fixedly connected to the mounting frame 603. The rolling roller 604 is rotatably connected to the inside of the mounting frame 603. The circumferential surface of the guide rod 601 is provided with a first spring 602. One end of the first spring 602 is fixedly connected to the mounting frame 603, and the other end of the first spring 602 is fixedly connected to the fixed plate 504. During operation, as the fixed plate 504 moves downward, after the rolling roller 604 contacts the spiral steel pipe, the guide rod 601 can be driven upward with the cooperation of the mounting frame 603, thereby compressing the first spring 602. The compressed first spring 602 is conducive to the close contact between the rolling roller 604 and the spiral steel pipe. In this way, the weld can be rolled with the cooperation of the rolling roller 604, which is conducive to improving the quality of the weld.

[0038] The support assembly 8 includes a support column 801, a movable plate 802, a second spring 803, a slide rail 804 and a slider 805. The upper end of the base 1 is fixedly connected to the support column 801, and the circumferential surface of the support column 801 is slidably connected to the movable plate 802. The upper end of the movable plate 802 is fixedly connected to the slide rail 804, and the slider 805 is slidably connected inside the slide rail 804; a second spring 803 is provided on the circumferential surface of the support column 801, one end of the second spring 803 is fixedly connected to the movable plate 802, and the other end of the second spring 803 is fixedly connected to the base 1. When working, since the second spring 803 is a compression spring, the movable plate 802 can be driven to move upward on the support column 801, and then with the cooperation of the slide rail 804 and the slider 805, the cleaning mechanism 9 can be closely contacted with the lower end of the spiral steel pipe, which is beneficial to improving the cleaning effect of the weld.

[0039] The cleaning mechanism 9 includes a fixed frame 901, a rotating roller 902, a belt 903, a wire brush 904 and a second motor 905. The upper end of the slider 805 is fixedly connected to the fixed frame 901, and the rotating roller 902 is rotatably connected inside the fixed frame 901. There are two rotating rollers 902, which are symmetrically distributed inside the fixed frame 901. The two rotating rollers 902 are connected by a belt 903, and the surface of the belt 903 is fixedly connected to the wire brush 904; the side end of the fixed frame 901 is fixedly connected to the second motor 905, and the output end of the second motor 905 is fixedly connected to the rotating roller 902. When working, the second motor 905 works, and at this time, the belt 903 can be driven to move with the cooperation of the rotating roller 902, and then the wire brush 904 can be driven to move. As the wire brush 904 moves, the weld of the spiral steel pipe can be cleaned, so that when cleaning the weld of the spiral steel pipe, cleaning work can be carried out while welding, thereby improving work efficiency.

[0040] The transmission assembly 7 includes a transmission rod 701, a connecting rod 702, a rack 703, a gear 704, a swing rod 705, a bearing seat 706 and a rotating shaft 707. The transmission rod 701 is slidably connected to the inside of the support frame 2; the upper end of the base 1 is fixedly connected to the bearing seat 706, and the inside of the bearing seat 706 is rotatably connected to the rotating shaft 707. Both ends of the rotating shaft 707 are fixedly connected to the gear 704, and the lower end of the gear 704 is meshed with the rack 703. The end of the rack 703 away from the gear 704 is fixedly connected to the connecting rod 702, and the connecting rod 702 and the transmission rod 701 are fixedly connected; the circumferential surface of the rotating shaft 707 is fixedly connected to the swing rod 705, and the end of the swing rod 705 away from the rotating shaft 707 is rotatably connected to the fixed frame 901; four swing rods 705 are provided, and the left and right swing rods 705 form a group, and The two swing rods 705 are parallel to each other. During operation, when the wire brush 904 needs to be replaced, the moving mechanism 3 works in the opposite direction, and the moving seat 303 can be driven to approach the support frame 2. When the moving seat 303 contacts the transmission rod 701, the transmission rod 701 will be squeezed to move to the right, and then the rack 703 can be driven to move with the cooperation of the connecting rod 702, and then the rotating shaft 707 can be driven to rotate inside the bearing seat 706 with the cooperation of the gear 704. As the rotating shaft 707 rotates, the fixed frame 901 can be driven downward with the cooperation of the swing rod 705, and the wire brush 904 can be moved away from the lower end of the spiral steel pipe, which makes it easy to replace the damaged wire brush 904. After the wire brush 904 is replaced, the weld of the spiral steel pipe can be better cleaned.

[0041] The upper end of the base 1 is fixedly connected to the limiting groove 11, and the rack 703 is located inside the limiting groove 11 and is slidably connected to the limiting groove 11. During operation, by setting the limiting groove 11, the rack 703 can be limited under the action of the limiting groove 11, because the rack 703 moves horizontally smoothly.

[0042] The supporting assembly 10 includes a supporting frame 1001, a reinforcement rod 1002 and a roller 1003. The upper end of the base 1 is fixedly connected to the supporting frame 1001, the upper end of the supporting frame 1001 is fixedly connected to the reinforcement rod 1002, and the upper end of the supporting frame 1001 is internally rotatably connected to the roller 1003. During operation, the reinforcement rod 1002 can enhance the stability of the supporting frame 1001, and at the same time, with the cooperation of the roller 1003, it is beneficial for the spiral steel pipe to move.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features therein. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A spiral steel pipe blank seam welding device, comprising a base (1), characterized in that: The right side of the base (1) is fixedly connected to a support frame (2), the left side of the support frame (2) is provided with a shaping device (4), the upper end of the support frame (2) is provided with a moving mechanism (3), the lower end of the moving mechanism (3) is provided with a welding mechanism (5), and the welding mechanism (5) is provided with a rolling assembly (6); The upper end of the base (1) is provided with a transmission assembly (7) and a support assembly (8), the upper end of the support assembly (8) is provided with a cleaning mechanism (9), and the cleaning mechanism (9) is used to clean the weld of the spiral steel pipe; supporting assemblies (10) are provided on both sides of the upper end of the base (1), and the supporting assemblies (10) are provided in multiple groups, and the front and rear two supporting assemblies (10) form one group.

2. The spiral steel pipe blank seam welding device according to claim 1 is characterized in that: The moving mechanism (3) comprises a screw rod (301), a baffle (302), a moving seat (303), a first motor (304), a first synchronous wheel (305), a second synchronous wheel (306) and a synchronous belt (307); the support frame (2) is internally rotatably connected to a screw rod (301); two screw rods (301) are provided; the left end of the screw rod (301) is rotatably connected to the baffle (302); the circumferential surface of the screw rod (301) is threadedly connected to the moving seat (303); and the right end of the screw rod (301) is fixedly connected to the second synchronous wheel (306); the upper end of the support frame (2) is fixedly connected to the first motor (304); the output end of the first motor (304) is fixedly connected to the first synchronous wheel (305); and the first synchronous wheel (305) and the second synchronous wheel (306) are connected via a synchronous belt (307).

3. The spiral steel pipe blank seam welding device according to claim 2, characterized in that: The welding mechanism (5) comprises an electric telescopic rod (501), a storage barrel (502), a flux gun head (503), a fixed plate (504), a wire guide tube (505) and an electrode head (506); the upper end of the movable seat (303) is fixedly connected to the electric telescopic rod (501); the extended end of the electric telescopic rod (501) passes through the movable seat (303) and is slidably connected to the movable seat (303); the extended end of the electric telescopic rod (501) is fixedly connected to the storage barrel (502); the lower end of the storage barrel (502) is fixedly connected to the flux gun head (503); the circumferential surface of the lower end of the storage barrel (502) is fixedly connected to the fixed plate (504); the lower end of the fixed plate (504) is fixedly connected to the wire guide tube (505) and the electrode head (506); and the end of the wire guide tube (505) away from the fixed plate (504) is connected to the flux gun head (503).

4. The spiral steel pipe blank seam welding device according to claim 3 is characterized in that: The rolling assembly (6) includes a guide rod (601), a first spring (602), a mounting frame (603) and a rolling roller (604); the guide rod (601) is slidably connected inside the fixed plate (504); the lower end of the guide rod (601) is fixedly connected to the mounting frame (603); the rolling roller (604) is rotatably connected inside the mounting frame (603); a first spring (602) is provided on the circumferential surface of the guide rod (601); one end of the first spring (602) is fixedly connected to the mounting frame (603); and the other end of the first spring (602) is fixedly connected to the fixed plate (504).

5. The spiral steel pipe blank seam welding device according to claim 1 is characterized in that: The support assembly (8) comprises a support column (801), a movable plate (802), a second spring (803), a slide rail (804) and a slider (805); the upper end of the base (1) is fixedly connected to the support column (801); the circumferential surface of the support column (801) is slidably connected to the movable plate (802); the upper end of the movable plate (802) is fixedly connected to the slide rail (804); the interior of the slide rail (804) is slidably connected to the slider (805); the circumferential surface of the support column (801) is provided with a second spring (803); one end of the second spring (803) is fixedly connected to the movable plate (802), and the other end of the second spring (803) is fixedly connected to the base (1).

6. The spiral steel pipe blank seam welding device according to claim 5, characterized in that: The cleaning mechanism (9) comprises a fixed frame (901), a rotating roller (902), a belt (903), a wire brush (904) and a second motor (905); the upper end of the slider (805) is fixedly connected to the fixed frame (901); the interior of the fixed frame (901) is rotatably connected to the rotating roller (902); two rotating rollers (902) are provided and symmetrically distributed inside the fixed frame (901); the two rotating rollers (902) are connected by a belt (903); the surface of the belt (903) is fixedly connected to the wire brush (904); the side end of the fixed frame (901) is fixedly connected to the second motor (905); the output end of the second motor (905) is fixedly connected to the rotating roller (902).

7. The spiral steel pipe blank seam welding device according to claim 6, characterized in that: The transmission assembly (7) comprises a transmission rod (701), a connecting rod (702), a rack (703), a gear (704), a swing rod (705), a bearing seat (706) and a rotating shaft (707); the transmission rod (701) is slidably connected inside the support frame (2); the upper end of the base (1) is fixedly connected to the bearing seat (706); the bearing seat (706) is rotatably connected to the rotating shaft (707); both ends of the rotating shaft (707) are fixedly connected to the gear (704); the lower end of the gear (704) is engaged with the gear (704). A rack (703) is provided, and one end of the rack (703) away from the gear (704) is fixedly connected to a connecting rod (702), and the connecting rod (702) is fixedly connected to the transmission rod (701); a swing rod (705) is fixedly connected to the circumferential surface of the rotating shaft (707), and one end of the swing rod (705) away from the rotating shaft (707) is rotatably connected to the fixed frame (901); four swing rods (705) are provided, and the left and right swing rods (705) form a group, and the two swing rods (705) are parallel to each other.

8. The spiral steel pipe blank seam welding device according to claim 7, characterized in that: The upper end of the base (1) is fixedly connected to the limiting groove (11), and the rack (703) is located inside the limiting groove (11) and is slidably connected to the limiting groove (11).

9. The spiral steel pipe blank seam welding device according to claim 1, characterized in that: The supporting assembly (10) comprises a supporting frame (1001), a reinforcing rod (1002) and a roller (1003); the upper end of the base (1) is fixedly connected to the supporting frame (1001); the upper end of the supporting frame (1001) is fixedly connected to the reinforcing rod (1002); and the upper end of the supporting frame (1001) is rotatably connected to the roller (1003).

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