Spiral submerged arc welding pipe forming device

Abstract

The utility model discloses a spiral submerged-arc welding pipe forming device, and particularly relates to the technical field of pipe fitting machining, the spiral submerged-arc welding pipe forming device comprises a pipe box, a moving pipe cavity and a collecting cavity are respectively arranged on the upper portion and the lower portion inside the pipe box, a spiral welded pipe penetrates through the moving pipe cavity, and a submerged-arc welding mechanism used for welding a welding seam of the spiral welded pipe is arranged on the pipe box. A collecting cavity is formed in the pipe box, discharging openings are formed in the two sides of the pipe box, the discharging openings correspond to and communicate with the collecting cavity, an annular filter plate is fixedly embedded in the bottom of the pipe box, a plate-shaped filter plate and a T-shaped baffle are fixedly connected into the collecting cavity, a moving channel for welding slag and welding flux is formed between the plate-shaped filter plate and the T-shaped baffle, and a pair of crushing rollers is arranged at an end opening of the moving channel; and the pair of crushing rollers is rotationally connected into the collecting cavity. The device solves the technical problem that particle welding flux which is not melted on a spiral pipe blank is mixed along with welding slag in the scattering process, so that inconvenience is brought to follow-up recycling of the welding flux.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing, and more specifically to a spiral submerged arc welded pipe forming device. Background Art

[0002] Spiral welded pipe is made by rolling low-carbon carbon structural steel or low-alloy structural steel strip into a tube blank at a certain spiral angle (called forming angle), and then welding the tube seam. It can produce large-diameter steel pipes with narrow strip steel. The welding of spiral welded pipe seams is mainly achieved by submerged arc welding. Submerged arc welding (including submerged arc cladding and electroslag cladding, etc.) is a method of welding in which the arc burns under the flux layer. Its inherent advantages such as stable welding quality, high welding productivity, no arc light and little smoke make it the main welding method in the production of important steel structures such as pressure vessels, pipe section manufacturing, box beams and columns.

[0003] At present, since the welding area of ​​the spirally arranged tube blank is welded by burning the arc under the flux layer, the unmelted granular flux will inevitably scatter, and the scattering process will be mixed with the welding slag, which brings inconvenience to the subsequent recycling of the flux. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a spiral submerged arc welded pipe forming device. The technical problem to be solved by the utility model is that the unmelted granular flux on the spiral tube blank will be mixed with the welding slag during the scattering process, which brings inconvenience to the subsequent recycling of the flux.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spiral submerged arc welded pipe forming device, comprising a pipe box, wherein the interior of the pipe box is respectively provided with a movable pipe cavity and a collecting cavity, wherein the movable pipe cavity is used for the spiral welded pipe to pass through, and the pipe box is provided with a submerged arc welding mechanism for welding the weld seam of the spiral welded pipe, and both sides of the pipe box are provided with a feed opening, wherein the feed opening corresponds to and is connected with the collecting cavity, and an annular filter plate is fixedly embedded at the bottom of the pipe box, and a plate-shaped filter plate and a T-shaped baffle are fixedly connected in the collecting cavity, and a moving channel for welding slag and flux is formed between the plate-shaped filter plate and the T-shaped baffle;

[0006] A pair of crushing rollers are arranged at the port of the moving channel, the pair of crushing rollers are rotatably connected in the collecting chamber, and the ends of the pair of crushing rollers are each provided with a gear 1, and the gears 1 are meshed and connected with each other, and the gear 1 is located outside the pipe box;

[0007] A welding slag push plate is slidably connected to the inner bottom wall of the collecting chamber, and the welding slag push plate is arranged in a transverse correspondence with the discharge port. A reciprocating drive component for driving the welding slag push plate to move back and forth is arranged in the collecting chamber.

[0008] In a preferred embodiment, the submerged arc welding mechanism includes a welding head and a flux feeding pipe connected to the welding head, and a telescopic slot is provided on the top of the pipe box, and the welding head passes through the telescopic slot.

[0009] In a preferred embodiment, a linear module for moving the welding head along the length direction of the spiral welded pipe is provided on the top of the pipe box.

[0010] In a preferred embodiment, a collection box is arranged below the annular filter plate.

[0011] In a preferred embodiment, a wear-resistant scraper is fixedly connected to the T-shaped baffle, the wear-resistant scraper is in active contact with the spiral welded pipe, and the wear-resistant scraper is located on the weld path of the spiral welded pipe.

[0012] In a preferred embodiment, the plate-shaped filter plate is arranged obliquely, and a pair of material collecting seats are fixedly connected to the plate-shaped filter plate, and the material collecting seats are located at the upper side of the crushing roller.

[0013] In a preferred embodiment, a rotating device for driving one of the crushing rollers to rotate is disposed on the outer side of the pipe box.

[0014] In a preferred embodiment, the reciprocating drive assembly includes a transmission plate fixedly connected to the top of the welding slag push plate, a reciprocating screw connected to the transmission plate through a threaded transmission, and a pair of light rods that movably pass through the transmission plate, the reciprocating screw is rotatably connected in the collection chamber, a pair of light rods are fixedly connected in the collection chamber, one end of the reciprocating screw is fixedly connected to gear 2, and gear 2 is meshingly connected to one of gears 1.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model discloses a spiral submerged arc welding pipe forming device, which is correspondingly arranged on the outer side of a spiral pipe blank through a pipe box. When the spiral pipe blank is subjected to mobile submerged arc welding processing, the remaining granular flux and welding slag on the pipe blank can be concentratedly introduced through the movable channel position for processing, and the welding slag is crushed by a crushing roller, which can reduce the volume of the material and facilitate collection. At the same time, the granular flux can freely fall to the inner bottom position of the pipe box, and the crushed welding slag is guided out from the discharge port by a reciprocating welding slag pushing plate. When the annular filter plate is used to screen the welding slag and the flux, the welding slag pushing plate can further promote the screening of the moving flux by pushing the moving welding slag, which can bring convenience to the recycling of the flux and facilitate the processing of the welding slag. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 It is a schematic structural diagram of the overall first viewing angle of the utility model.

[0019] Figure 2 It is a schematic structural diagram of the overall second viewing angle of the utility model.

[0020] Figure 3 For this utility model Figure 2 sectional view of .

[0021] Figure 4 It is a schematic structural diagram of the wear-resistant scraper and reciprocating drive assembly of the utility model.

[0022] The accompanying drawings are marked as follows: 1. pipe box; 2. movable tube cavity; 3. collecting cavity; 4. welding head; 41. flux feeding pipe; 5. discharge port; 6. annular filter plate; 7. plate filter plate; 8. T-shaped baffle; 9. crushing roller; 91. gear one; 10. welding slag push plate; 11. transmission plate; 12. reciprocating screw; 13. light rod; 14. linear module; 15. collecting box; 16. collection seat; 17. wear-resistant scraper; 18. rotating device; 19. gear two. DETAILED DESCRIPTION

[0023] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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.

[0024] Combined with reference Figure 1-Figure 4The utility model provides a spiral submerged arc welded pipe forming device, including a pipe box 1, wherein a movable tube cavity 2 and a collecting cavity 3 are respectively arranged at the upper and lower parts of the pipe box 1, and the movable tube cavity 2 is used for the passage of the spiral welded pipe, and the spiral welded pipe is a pipe blank arranged in a spiral shape. A submerged arc welding mechanism for welding the weld seam of the spiral welded pipe is arranged on the pipe box 1, and discharge ports 5 are arranged on both sides of the pipe box 1, and the position of the discharge port 5 is used for centralized discharge of welding slag falling off the pipe blank, and the discharge port 5 corresponds to and is connected with the collecting cavity 3. An annular filter plate 6 is fixedly embedded at the bottom of the pipe box 1, and a plate-shaped filter plate 7 and a T-shaped baffle 8 are fixedly connected in the collecting cavity 3, and a movable channel for welding slag and flux is formed between the plate-shaped filter plate 7 and the T-shaped baffle 8, and a pair of crushing rollers 9 are arranged at the port of the movable channel, and the crushing rollers 9 are used to crush the welding slag, and the collection amount can be increased by reducing the size of the welding slag.

[0025] A pair of crushing rollers 9 are rotatably connected in the collecting chamber 3, and a gear 91 is provided at the end of the pair of crushing rollers 9, and the gears 91 are meshed and connected with each other, and the gear 91 is located outside the pipe box 1;

[0026] A welding slag push plate 10 is slidably connected to the inner bottom wall of the collecting chamber 3. The welding slag push plate 10 is arranged horizontally corresponding to the discharge port 5. The welding slag push plate 10 can be used to push the welding slag and flux to move on the annular filter plate 6. The discharge port 5 can provide a discharge channel for the welding slag. A reciprocating drive component is provided in the collecting chamber 3 for driving the welding slag push plate 10 to move back and forth.

[0027] The submerged arc welding mechanism includes a welding head 4 and a flux delivery pipe 41 connected to the welding head 4. A telescopic slot is provided on the top of the pipe box 1. The welding head 4 passes through the telescopic slot. The flux delivery pipe 41 can be used to transport flux to the position of the welding head 4, and cooperate with the working arc of the welding head 4 to burn under the flux layer to perform welding operations on the gaps of the spiral pipe blank.

[0028] A linear module 14 is provided on the top of the pipe box 1 for moving the welding head 4 along the length direction of the spiral welded pipe. The linear module 14 can be used to control the welding head 4 to move and weld, so as to utilize the change of the weld position.

[0029] A collecting box 15 is provided below the annular filter plate 6. The collecting box 15 is movably provided to receive the flux at the sieve below the annular filter plate 6, so that it can be easily recycled.

[0030] A wear-resistant scraper 17 is fixedly connected to the T-shaped baffle 8. The wear-resistant scraper 17 is in active contact with the spiral welded pipe and is located on the weld path of the spiral welded pipe. The wear-resistant scraper 17 acts on the weld path and can scrape off the welding slag produced by submerged arc welding, thereby improving the welding quality.

[0031] The plate-shaped filter plate 7 is arranged at an angle, and a pair of collecting seats 16 are fixedly connected to the plate-shaped filter plate 7. The collecting seats 16 are located on the upper side of the crushing roller 9. When the remaining flux and welding slag on the spiral tube blank fall off, both can roll down through the plate-shaped filter plate 7 and fall into the position of the crushing roller 9, and the plate-shaped filter plate 7 can screen out the flux in advance and fall into the position of the annular filter plate 6; the setting of a pair of collecting seats 16 can change the channel width of the welding slag and flux on the plate-shaped filter plate 7, and the collecting seat 16 is a triangle with an inner bevel. The minimum spacing of a pair of collecting seats 16 is close to the length of the crushing roller 9, which can prevent the welding slag from falling close to the inner wall of the pipe box 1 and be directly discharged through the discharge port 5.

[0032] A rotating device 18 for driving one of the crushing rollers 9 to rotate is arranged on the outer side of the pipe box 1 . The rotating device 18 can be a rotating motor, which can provide crushing power for the crushing roller 9 .

[0033] The reciprocating drive assembly includes a transmission plate 11 fixedly connected to the top of the slag push plate 10, a reciprocating screw 12 threadedly connected to the transmission plate 11, and a pair of light rods 13 movably passing through the transmission plate 11. The reciprocating screw 12 is rotatably connected in the collecting chamber 3, and the pair of light rods 13 is fixedly connected in the collecting chamber 3. One end of the reciprocating screw 12 is fixedly connected to a gear 2 19, and the gear 2 19 is meshedly connected to one of the gears 1 91.

[0034] Specifically, when one of the crushing rollers 9 rotates, the cooperation of a pair of gears 91 can make the pair of crushing rollers 9 rotate relative to each other, so that the fallen welding slag can be crushed to reduce the size of the welding slag. After the crushed welding slag and welding fall into the bottom of the collecting chamber 3, the meshing rotation of gear 2 19 and one of the gears 91 can make the reciprocating screw 12 rotate. In this way, under the sliding guide provided by the light rod 13 for the transmission plate 11, the transmission plate 11 can drive the welding slag push plate 10 to reciprocate at the inner bottom of the collecting chamber 3, and the welding slag and flux are pushed to the inner surface position of the annular filter plate 6 by the welding slag push plate 10, which can facilitate the screening of the flux. At the same time, the position of the discharge port 5 can facilitate the discharge of welding slag, thereby achieving the effect of classification and screening.

Claims

1. A spiral submerged arc welded pipe forming device, comprising a pipe box (1), wherein the pipe box (1) is provided with a movable pipe cavity (2) and a collecting cavity (3) at the upper and lower parts thereof, respectively, wherein the movable pipe cavity (2) is used for the spiral welded pipe to pass through, and the pipe box (1) is provided with a submerged arc welding mechanism for welding the weld seam of the spiral welded pipe, characterized in that: Both sides of the pipe box (1) are provided with feed openings (5), the feed openings (5) correspond to and are in communication with the collecting chamber (3), an annular filter plate (6) is fixedly embedded in the bottom of the pipe box (1), a plate-shaped filter plate (7) and a T-shaped baffle (8) are fixedly connected in the collecting chamber (3), and a moving channel for welding slag and flux is formed between the plate-shaped filter plate (7) and the T-shaped baffle (8); A pair of crushing rollers (9) are provided at the port of the moving channel, the pair of crushing rollers (9) are rotatably connected in the collecting chamber (3), the ends of the pair of crushing rollers (9) are provided with gears 1 (91), and the gears 1 (91) are meshed and connected with each other, and the gears 1 (91) are located outside the pipe box (1); A welding slag push plate (10) is slidably connected to the inner bottom wall of the collection chamber (3); the welding slag push plate (10) is arranged in a transverse correspondence with the discharge port (5); and a reciprocating drive component for driving the welding slag push plate (10) to reciprocate is arranged in the collection chamber (3).

2. A spiral submerged arc welded pipe forming device according to claim 1, characterized in that: The submerged arc welding mechanism comprises a welding head (4) and a flux delivery pipe (41) connected to the welding head (4); a telescopic slot is provided on the top of the pipe box (1), and the welding head (4) passes through the telescopic slot.

3. A spiral submerged arc welded pipe forming device according to claim 2, characterized in that: A linear module (14) is provided on the top of the pipe box (1) for moving the welding head (4) along the length direction of the spiral welded pipe.

4. The spiral submerged arc welded pipe forming device according to claim 1, characterized in that: A collection box (15) is provided below the annular filter plate (6).

5. The spiral submerged arc welded pipe forming device according to claim 1, characterized in that: A wear-resistant scraper (17) is fixedly connected to the T-shaped baffle (8), the wear-resistant scraper (17) is in active contact with the spiral welded pipe, and the wear-resistant scraper (17) is located on the weld path of the spiral welded pipe.

6. The spiral submerged arc welded pipe forming device according to claim 1, characterized in that: The plate-shaped filter plate (7) is arranged in an inclined manner, and a pair of material collecting seats (16) are fixedly connected to the plate-shaped filter plate (7), and the material collecting seats (16) are located at a side upper position of the crushing roller (9).

7. The spiral submerged arc welded pipe forming device according to claim 1, characterized in that: A rotating device (18) for driving one of the crushing rollers (9) to rotate is arranged on the outside of the pipe box (1).

8. The spiral submerged arc welded pipe forming device according to claim 1, characterized in that: The reciprocating drive assembly comprises a transmission plate (11) fixedly connected to the top of the welding slag push plate (10), a reciprocating screw (12) threadedly connected to the transmission plate (11), and a pair of light rods (13) movably passing through the transmission plate (11), the reciprocating screw (12) being rotatably connected in the collection chamber (3), the pair of light rods (13) being fixedly connected in the collection chamber (3), one end of the reciprocating screw (12) being fixedly connected to a gear 2 (19), and the gear 2 (19) being meshingly connected to one of the gears 1 (91).

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