A double-sided submerged arc welding spiral steel pipe forming device

Abstract

The present invention relates to the technical field of spiral steel pipe forming, and discloses a double-sided submerged arc welding spiral steel pipe forming device, including a long rod arranged at the center of a rotating assembly, a carrier installed at one end of the long rod away from the rotating assembly, and four grooves evenly opened on the outer wall of the carrier. The present invention uses the arrangement of the carrier and the grooves, so that when the long iron sheet moves inside the tube body, it moves along the inclined direction of the forming wheel, and the inclined direction of the forming wheel is used to spirally guide the long iron sheet to form a spiral tube. When the spiral tube passes through a welding gun, the welding gun welds the spiral gap on the spiral tube. During the welding process, the generated slag falls into the groove for collection, thereby solving the problem of cleaning the slag on the inner wall of the spiral tube after the spiral tube is formed.

Description

Technical Field

[0001] The invention relates to the technical field of spiral steel pipe forming, in particular to a double-sided submerged arc welding spiral steel pipe forming device. Background Art

[0002] Spiral steel pipe is made of strip steel coil as raw material, extruded at room temperature, and welded by automatic double-wire double-sided submerged arc welding process. It adopts advanced double-sided submerged arc welding technology to achieve welding in the best position, and is not prone to defects such as misalignment, welding deviation and incomplete penetration. The welding quality is high. Double-sided submerged arc welded spiral steel pipe is a steel pipe produced by a special welding pipe unit. Its production process includes feeding the strip steel into the welding pipe unit, and rolling it through multiple rollers. The strip steel is gradually rolled up to form a circular pipe.

[0003] The Chinese patent application with application number CN201721838206.7 discloses a double-sided submerged arc welding spiral steel pipe forming device, including a base, a feeding mechanism, a leveling mechanism, a cutting mechanism, a welding mechanism, and a main motor. The feeding mechanism, the leveling mechanism, the cutting mechanism, and the welding mechanism are all located on the base, the leveling mechanism is located between the feeding mechanism and the cutting mechanism, the welding mechanism is located on one side of the cutting mechanism, and the main motor is connected to the feeding mechanism, the leveling mechanism, the cutting mechanism, and the welding mechanism through lines. The double-sided submerged arc welding spiral steel pipe forming device described in the utility model is provided with a leveling mechanism, a cutting mechanism, and a welding mechanism, which first flattens the curled steel plate, then curls the outer spiral of the steel plate into a tubular shape, and then welds the tubular steel to complete the forming of the steel pipe, thereby improving the level of automation while ensuring the quality of the steel pipe;

[0004] Although this arrangement curls the outer spiral of the steel plate into a tube and then welds the tubular steel to complete the forming of the steel tube, which improves the level of automation and ensures the quality of the steel tube, when the spiral tube is welded, the debris generated will pass through the spiral gap of the spiral tube and fall into the inside of the spiral tube. In this way, the debris inside the formed spiral tube needs to be cleaned, which will increase the workload of the staff and affect the work efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a double-sided submerged arc welding spiral steel pipe forming device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a double-sided submerged arc welding spiral steel pipe forming device, comprising a bottom plate, a plurality of support frames are installed on the upper surface of the bottom plate, two of the support frames are installed with a pipe body, three forming assemblies are installed on the pipe body, the three forming assemblies are arranged diagonally in an S shape on the pipe body, and a feed port is provided on the pipe body;

[0008] A rotating assembly is installed at one end of the tube body, a motor is installed on the outer wall of the port, a driving gear is installed on the output shaft of the motor, and the driving gear drives the rotating assembly;

[0009] Four limiting holes for matching the rotating assembly are evenly arranged on the outer wall of the port of the tube body;

[0010] A long rod is arranged at the center of the rotating assembly, a carrier is installed at one end of the long rod away from the rotating assembly, and four grooves are evenly opened on the outer wall of the carrier;

[0011] A welding gun is installed on the outer wall of the tube body, and the welding gun extends to the top of the groove.

[0012] Welding the tubular steel to complete the forming of the steel pipe improves the automation level and ensures the quality of the steel pipe. However, when welding the spiral pipe, the generated slag will pass through the spiral gap of the spiral pipe and fall into the inside of the spiral pipe. It is necessary to clean the slag inside the spiral pipe after forming;

[0013] The long strip of iron sheet passes through the feed port of the tube body and moves along the inner wall of the tube body. The forming component spirally guides the entering long strip of iron sheet to form a spiral tube. When the spiral tube passes through the welding gun, the welding gun welds the spiral gap on the spiral tube. During the welding process, the generated slag falls into the groove for collection. After the spiral tube is formed, the output shaft of the motor drives the drive gear to rotate, driving the rotating component to operate. The rotating component drives the groove to flip through the long rod to pour out the slag inside the groove.

[0014] Furthermore, the rotating assembly includes a ring body, which is rotatably connected to the outer wall of the port of the tube body, and four mounting grooves are provided on the ring body. Springs are installed inside the mounting grooves, and a limiting block is slidably connected to the inner wall of the mounting groove. The limiting block cooperates with the limiting hole, and the spring is located between the outer wall of the limiting block and the inner wall of the mounting groove.

[0015] The purpose of the above setting is that when the ring body rotates 90°, the four limit blocks are inserted into the inside of the limit hole, and the limit blocks move from the surface of the tube body to the inside of the limit hole for limiting. The head of the limit block and the port of the limit hole are provided with rounded corners for moving the limit block out from the inside of the limit hole.

[0016] Furthermore, a gear ring is installed on one side of the ring body, and the gear ring is meshed with the driving gear. Four fixing rods are installed on the inner side of the ring body, and one end of the long rod is connected to the ring body through the fixing rod.

[0017] The purpose of the above arrangement is that the output shaft of the motor drives the driving gear to rotate, the driving gear drives the gear ring, the gear ring drives the ring body and the fixed rod to rotate, thereby driving the long rod and the carrier to rotate, thereby turning over the debris inside the groove.

[0018] Furthermore, the forming assembly includes a connecting frame and a forming wheel, the connecting frame is mounted on the tube body, three forming wheels are mounted on the connecting frame, and the three forming wheels are located on the inner side of the tube body and are tilted.

[0019] The purpose of the above arrangement is that when the long iron sheet moves inside the tube body, it moves along the inclined direction of the forming wheel. The inclined direction of the forming wheel guides the long iron sheet in a spiral direction to form a spiral tube.

[0020] Furthermore, one end of the tube body is rotatably connected to four rollers, two of which are respectively connected to cleaning components, and four guide rails are connected to the outer wall of the port of the tube body.

[0021] The purpose of the above arrangement is that during the movement of the spiral tube, the outer wall of the spiral tube and the roller roll and rub against each other, driving the roller to rotate, thereby driving the cleaning component to operate.

[0022] Furthermore, the cleaning assembly includes a curved wheel, a curved rod and a brush ring, the curved wheel is mounted on the rotating shaft of the roller, one end of the curved rod is rotatably connected to the outer wall of the curved wheel, the brush ring is slidably connected through four guide rails, and the end of the curved rod away from the curved wheel is rotatably connected to the brush ring.

[0023] The purpose of the above arrangement is that when the roller rotates, the rotating shaft of the roller drives the crank wheel to rotate, the crank wheel and the crank rod form a crank structure, the crank wheel drives the crank rod to move, the crank rod pushes the brush ring, and the brush ring moves on the guide rail. During the movement, the brush ring rubs and cleans the outer wall of the spiral tube.

[0024] Furthermore, a collecting shell is installed on the other two supporting frames, the bottom of the collecting shell is rotatably connected to a rotating plate, a first spring is connected between the lower surface of the rotating plate and the bottom plate, the upper surface of the rotating plate is connected to a ramp block, and a connecting rod is installed at the bottom of the brush ring, and the bottom end of the connecting rod moves along the inclined surface of the ramp block.

[0025] The purpose of the above-mentioned setting is to make the debris generated by the brush ring cleaning and the debris falling from the groove fall onto the collection shell for centralized collection. During the movement of the brush ring, the bottom end of the connecting rod moves along the inclined surface of the ramp block to open the rotating plate, and the debris is discharged centrally along the port. The spring is used to reset the ramp block.

[0026] The present invention has the following beneficial effects:

[0027] (1) The present invention arranges the carrier and the groove so that when the long iron sheet moves inside the tube body, it moves along the tilting direction of the forming wheel. The tilting direction of the forming wheel spirally guides the long iron sheet to form a spiral tube. When the spiral tube passes through the welding gun, the welding gun welds the spiral gap on the spiral tube. During the welding process, the generated slag falls into the groove and is collected, thereby solving the problem of cleaning the slag on the inner wall of the spiral tube after the spiral tube is formed.

[0028] (2) The present invention provides a cleaning component. When the roller rotates, the rotating shaft of the roller drives the crank wheel to rotate. The crank wheel and the crank rod form a crank structure. The crank wheel drives the crank rod to move. The crank rod pushes the brush ring. The brush ring moves on the guide rail. During the movement, the brush ring rubs and cleans the outer wall of the spiral tube.

[0029] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the rotating assembly of the present invention;

[0033] Figure 3 It is a schematic diagram of the molding assembly of the present invention;

[0034] Figure 4 Schematic diagram of the roller and cleaning assembly of the present invention Figure 1 ;

[0035] Figure 5 Schematic diagram of the roller and cleaning assembly of the present invention Figure 2 ;

[0036] Figure 6It is a schematic diagram of the cleaning component of the present invention;

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] In the figure: 1. tube body; 101. limit hole; 2. forming assembly; 201. connecting frame; 202. forming wheel; 3. motor; 4. rotating assembly; 401. ring body; 402. gear ring; 403. limit block; 404. fixing rod; 5. carrier; 501. groove; 6. bottom plate; 7. roller; 8. cleaning assembly; 801. curved wheel; 802. curved rod; 803. brush ring; 8030. connecting rod; 9. guide rail; 10. welding gun; 11. collecting shell; 1101. ramp block; 1102. rotating plate; 12. long rod; 13. spring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0040] The present invention is a double-sided submerged arc welding spiral steel pipe forming device, such as Figure 1 - Figure 6 As shown, it includes a bottom plate 6, and a plurality of support frames are installed on the upper surface of the bottom plate 6, wherein a tube body 1 is installed on two of the support frames, and three forming assemblies 2 are installed on the tube body 1, and the three forming assemblies 2 are arranged diagonally in an S shape on the tube body 1, and a feed port is provided on the tube body 1;

[0041] A rotating assembly 4 is installed at one end of the tube body 1, a motor 3 is installed on the outer wall of the port, a driving gear is installed on the output shaft of the motor 3, and the driving gear drives the rotating assembly 4;

[0042] Four limiting holes 101 for matching the rotating assembly 4 are evenly arranged on the outer wall of the port of the tube body 1;

[0043] A long rod 12 is provided at the center of the rotating assembly 4, and a carrier 5 is installed at one end of the long rod 12 away from the rotating assembly 4, and four grooves 501 are evenly opened on the outer wall of the carrier 5;

[0044] A welding gun 10 is mounted on the outer wall of the tube body 1 , and the welding gun 10 extends to above the groove 501 .

[0045] In this embodiment, the purpose of the above-mentioned arrangement is that the long strip of iron sheet passes through the feed port of the tube body 1 and moves along the inner wall of the tube body 1. The forming component 2 spirally guides the entering long strip of iron sheet to form a spiral tube. When the spiral tube passes through the welding gun 10, the welding gun 10 welds the spiral gap on the spiral tube. During the welding process, the generated slag falls into the groove 501 for collection. After the spiral tube is formed, the output shaft of the motor 3 drives the driving gear to rotate, driving the rotating component 4 to operate. The rotating component 4 drives the groove 501 to flip through the long rod 12, and the slag inside the groove 501 is poured out.

[0046] As an implementation method, Figure 2 As shown, further:

[0047] The rotating assembly 4 includes a ring body 401, which is rotatably connected to the outer wall of the port of the tube body 1. Four mounting grooves are provided on the ring body 401, and springs are installed inside the mounting grooves. A limiting block 403 is slidably connected to the inner wall of the mounting groove. The limiting block 403 cooperates with the limiting hole 101, and the spring is located between the outer wall of the limiting block 403 and the inner wall of the mounting groove.

[0048] In this embodiment, the purpose of the above-mentioned setting is that when the ring body 401 rotates 90°, the four limit blocks 403 are inserted into the interior of the limit hole 101, and the limit blocks 403 move from the surface of the tube body 1 to the interior of the limit hole 101 for limiting. The head of the limit block 403 and the port of the limit hole 101 are both provided with rounded corners for moving the limit block 403 out from the interior of the limit hole 101.

[0049] As an implementation method, Figure 2 As shown, further:

[0050] A gear ring 402 is installed on one side of the ring body 401 , and the gear ring 402 is meshed with the driving gear. Four fixing rods 404 are installed on the inner side of the ring body 401 , and one end of the long rod 12 is connected to the ring body 401 through the fixing rod 404 .

[0051] In this embodiment, the purpose of the above-mentioned arrangement is that the output shaft of the motor 3 drives the driving gear to rotate, the driving gear drives the gear ring 402, the gear ring 402 drives the ring body 401 and the fixed rod 404 to rotate, thereby driving the long rod 12 and the carrier 5 to rotate, thereby turning over the debris inside the groove 501.

[0052] As an implementation method, Figure 3 As shown, further:

[0053] The forming assembly 2 includes a connecting frame 201 and a forming wheel 202 . The connecting frame 201 is mounted on the tube body 1 . Three forming wheels 202 are mounted on the connecting frame 201 . The three forming wheels 202 are located on the inner side of the tube body 1 and are tilted.

[0054] In this embodiment, the purpose of the above arrangement is that when the long iron sheet moves inside the tube body 1, it moves along the inclined direction of the forming wheel 202. The inclined direction of the forming wheel 202 spirally guides the long iron sheet to form a spiral tube.

[0055] As an implementation method, Figure 4 As shown, further:

[0056] One end of the tube body 1 is rotatably connected to four rollers 7 , wherein two rollers 7 are respectively connected to cleaning components 8 , and four guide rails 9 are connected to the outer wall of the port of the tube body 1 .

[0057] In this embodiment, the purpose of the above arrangement is that during the movement of the spiral tube, the outer wall of the spiral tube and the roller 7 roll and rub against each other, driving the roller 7 to rotate, thereby driving the cleaning assembly 8 to operate.

[0058] As an implementation method, Figure 4-Figure 6 As shown, further:

[0059] The cleaning assembly 8 includes a curved wheel 801, a curved rod 802 and a brush ring 803. The curved wheel 801 is installed on the rotating shaft of the roller 7. One end of the curved rod 802 is rotatably connected to the outer wall of the curved wheel 801. The brush ring 803 is slidably connected through four guide rails 9. The end of the curved rod 802 away from the curved wheel 801 is rotatably connected to the brush ring 803.

[0060] In this embodiment, the purpose of the above arrangement is that when the roller 7 rotates, the rotating shaft of the roller 7 drives the crank wheel 801 to rotate, the crank wheel 801 and the crank rod 802 form a crank structure, the crank wheel 801 drives the crank rod 802 to move, the crank rod 802 pushes the brush ring 803, the brush ring 803 moves on the guide rail 9, and the brush ring 803 rubs and cleans the outer wall of the spiral tube during the movement;

[0061] The outer wall of the spiral tube rolls and rubs against the roller 7, driving the roller 7 to rotate, thereby driving the cleaning assembly 8 to operate. When the roller 7 rotates, the rotating shaft of the roller 7 drives the crank wheel 801 to rotate, and the crank wheel 801 and the crank rod 802 form a crank structure. The crank wheel 801 drives the crank rod 802 to move, and the crank rod 802 pushes the brush ring 803, and the brush ring 803 moves on the guide rail 9. During the movement, the brush ring 803 rubs and cleans the outer wall of the spiral tube. The debris generated by the cleaning of the brush ring 803 falls onto the collection shell 11 for centralized collection. During the movement of the brush ring 803, the bottom end of the connecting rod 8030 moves along the inclined surface of the ramp block 1101 to open the rotating plate 1102, and the debris is discharged centrally along the port. The first spring 13 is used to reset the ramp block 1101.

[0062] As an implementation method, Figure 5 As shown, further:

[0063] The other two support frames are equipped with a collecting shell 11, and the bottom of the collecting shell 11 is rotatably connected to a rotating plate 1102, a first spring 13 is connected between the lower surface of the rotating plate 1102 and the bottom plate 6, and the upper surface of the rotating plate 1102 is connected to a ramp block 1101. A connecting rod 8030 is installed at the bottom of the brush ring 803, and the bottom end of the connecting rod 8030 moves along the inclined surface of the ramp block 1101.

[0064] In this embodiment, the purpose of the above-mentioned arrangement is to make the debris generated by cleaning of the brush ring 803 and the debris falling from the groove 501 fall onto the collecting shell 11 for centralized collection. During the movement of the brush ring 803, the bottom end of the connecting rod 8030 moves along the inclined surface of the ramp block 1101 to open the rotating plate 1102, and the debris is discharged centrally along the port. The spring 13 is used to reset the ramp block 1101.

[0065] When in use, the long strips are conveyed by the discharge mechanism in the prior art. When the long strip of iron sheet moves inside the tube body 1, it moves along the inclined direction of the forming wheel 202. The inclined direction of the forming wheel 202 spirally guides the long strip of iron sheet to form a spiral tube. When the spiral tube passes through the welding gun 10, the welding gun 10 welds the spiral gap on the spiral tube. During the welding process, the generated slag falls into the groove 501 for collection. After the spiral tube is formed, the output shaft of the motor 3 drives the driving gear to rotate, and the driving gear drives the gear ring 402. The gear ring 402 drives the ring body 401 and the fixed rod 404 to rotate, thereby driving the long rod 12 and the carrier 5 to rotate, thereby turning over the slag inside the groove 501. The slag falling from the groove 501 falls onto the collecting shell 11 for centralized collection. In the process of the movement of the spiral tube, the spiral The outer wall of the spiral tube rolls and rubs against the roller 7, driving the roller 7 to rotate, thereby driving the cleaning assembly 8 to operate. When the roller 7 rotates, the rotating shaft of the roller 7 drives the crank wheel 801 to rotate, and the crank wheel 801 and the crank rod 802 form a crank structure. The crank wheel 801 drives the crank rod 802 to move, and the crank rod 802 pushes the brush ring 803, and the brush ring 803 moves on the guide rail 9. During the movement, the brush ring 803 rubs and cleans the outer wall of the spiral tube. The debris generated by the cleaning of the brush ring 803 falls onto the collection shell 11 for centralized collection. During the movement of the brush ring 803, the bottom end of the connecting rod 8030 moves along the inclined surface of the ramp block 1101 to open the rotating plate 1102, and the debris is discharged centrally along the port. The first spring 13 is used to reset the ramp block 1101.

[0066] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A double-sided submerged arc welding spiral steel pipe forming device, comprising a bottom plate (6), characterized in that: A plurality of support frames are installed on the upper surface of the bottom plate (6), wherein a tube body (1) is installed on two of the support frames, and three forming assemblies (2) are installed on the tube body (1), and the three forming assemblies (2) are arranged diagonally in an S shape on the tube body (1), and a feed port is provided on the tube body (1); A rotating assembly (4) is installed at one end of the tube body (1), a motor (3) is installed on the outer wall of the port, a driving gear is installed on the output shaft of the motor (3), and the driving gear drives the rotating assembly (4); Four limiting holes (101) for matching the rotating assembly (4) are evenly arranged on the outer wall of the port of the tube body (1); A long rod (12) is arranged at the center of the rotating assembly (4); a carrier (5) is mounted on one end of the long rod (12) away from the rotating assembly (4); and four grooves (501) are evenly arranged on the outer wall of the carrier (5); A welding gun (10) is mounted on the outer wall of the tube body (1), and the welding gun (10) extends to above the groove (501); The forming assembly (2) comprises a connecting frame (201) and a forming wheel (202); the connecting frame (201) is mounted on the tube body (1); three forming wheels (202) are mounted on the connecting frame (201); the three forming wheels (202) are located on the inner side of the tube body (1) and are arranged to be inclined.

2. A double-sided submerged arc welding spiral steel pipe forming device according to claim 1, characterized in that: The rotating assembly (4) comprises a ring body (401), the ring body (401) being rotatably connected to the outer wall of the port of the tube body (1), the ring body (401) being provided with four mounting grooves, springs being installed inside the mounting grooves, a limiting block (403) being slidably connected to the inner wall of the mounting groove, the limiting block (403) being matched with the limiting hole (101), and the spring being located between the outer wall of the limiting block (403) and the inner wall of the mounting groove.

3. A double-sided submerged arc welding spiral steel pipe forming device according to claim 2, characterized in that: A gear ring (402) is installed on one side of the ring body (401), and the gear ring (402) meshes with the driving gear. Four fixing rods (404) are installed on the inner side of the ring body (401), and one end of the long rod (12) is connected to the ring body (401) via the fixing rod (404).

4. The double-sided submerged arc welding spiral steel pipe forming device according to claim 3, characterized in that: One end of the tube body (1) is rotatably connected to four rollers (7), two of which are respectively connected to cleaning components (8), and the outer wall of the port of the tube body (1) is connected to four guide rails (9).

5. The double-sided submerged arc welding spiral steel pipe forming device according to claim 4, characterized in that: The cleaning assembly (8) comprises a curved wheel (801), a curved rod (802) and a brush ring (803); the curved wheel (801) is mounted on the rotating shaft of the roller (7); one end of the curved rod (802) is rotatably connected to the outer wall of the curved wheel (801).

6. The double-sided submerged arc welding spiral steel pipe forming device according to claim 5, characterized in that: The brush ring (803) is slidably connected via four guide rails (9), and one end of the curved rod (802) away from the curved wheel (801) is rotationally connected to the brush ring (803).

7. The double-sided submerged arc welding spiral steel pipe forming device according to claim 6, characterized in that: A collecting shell (11) is mounted on the two support frames; the bottom of the collecting shell (11) is rotatably connected to a rotating plate (1102); a first spring (13) is connected between the lower surface of the rotating plate (1102) and the bottom plate (6); and the upper surface of the rotating plate (1102) is connected to a ramp block (1101).

8. The double-sided submerged arc welding spiral steel pipe forming device according to claim 7, characterized in that: A connecting rod (8030) is installed at the bottom of the brush ring (803), and the bottom end of the connecting rod (8030) moves along the inclined surface of the ramp block (1101).

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