Pipeline curled edge cutting device

Abstract

The utility model relates to a pipeline curled edge cutting device which comprises a bearing plate, a clamping plate, a clamping roller and a connecting piece. Clamping plates are arranged on the left portion and the right portion of the bottom face of the bearing plate and slidably connected to the bearing plate, a first driving part is arranged on the bearing plate and drives the two clamping plates to move oppositely or oppositely, a rectangular hole is formed in each clamping plate, and clamping rollers are rotationally connected between the upper portions and the lower portions of the front side face and the rear side face of each rectangular hole. The left end and the right end of the clamping roller extend out of the rectangular hole; a connecting piece is arranged at the front end of the bearing plate and comprises a sleeve and a movable rod, the sleeve is fixedly connected with the bearing plate, the upper end of the movable rod extends into the sleeve in a sliding mode, a second driving piece for driving the movable rod to move upwards or downwards is arranged on the sleeve, and a scraper is connected to the lower end of the movable rod. The pipeline curled edge cutting device solves the problems that when a pipeline curled edge is cut off, the efficiency is low only by manually operating a scraper, and the using effect of an existing device is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline production, in particular to a pipeline curling excision device. Background Art

[0002] Pipeline fusion welding is a welding technology used to connect pipelines or pipe fittings. It involves heating the end of the pipeline to a molten state and then fusing the two pipeline ends together to form a continuous and defect-free weld. During the cooling process of pipeline fusion welding, due to the effects of thermal expansion and cooling contraction, the molten pipeline forms a bulge along the outer side of the pipeline end, and this bulge is called curling. The curling may affect the sealing performance and overall structural strength of the pipeline.

[0003] The authorized publication number CN 219705342 U, "A PE Pipeline Curling Excision Device", mentions that manual use of a scraper is used to remove the curling of the pipeline. The movement of the scraper is generally translational, while the pipeline is generally circular. The excision of the pipeline curling highly depends on manual experience, and the excision efficiency of the pipeline curling is low. Moreover, before scraping the curling of the pipeline, two half sleeves still need to be connected, and the connection of the two half sleeves also takes time, and the use effect is not good. Summary of the Invention

[0004] The utility model aims to solve the problems of low efficiency in removing pipeline curling by only manual operation of a scraper and poor use effect of the existing device, and provides a pipeline curling excision device, which can improve the excision effect and excision efficiency of pipeline curling.

[0005] To solve the above problems, the technical solution of the utility model is as follows:

[0006] A pipeline curling excision device includes a bearing plate, clamping plates, clamping rollers and a connecting member. Clamping plates are provided at the left and right parts of the bottom surface of the bearing plate. The clamping plates are slidably connected to the bearing plate. A driving member one is provided on the bearing plate, and the driving member one drives the two clamping plates to move relatively or away from each other. A rectangular hole is provided on each clamping plate. Clamping rollers are rotatably connected between the upper and lower front and rear side surfaces of the rectangular hole, and the left and right ends of the clamping rollers extend out of the rectangular hole. A connecting member is provided at the front end of the bearing plate. The connecting member includes a sleeve and a movable rod. The sleeve is fixedly connected to the bearing plate, the upper end of the movable rod slides into the sleeve, and a driving member two for driving the movable rod to move up or down is provided on the sleeve. A scraper is connected to the lower end of the movable rod.

[0007] Further, the first driving member includes a chute, a first slider, and a second slider. A chute is recessed upward from the bottom surface of the bearing plate. The upper ends of the two clamping plates are respectively connected to the first slider and the second slider. The first slider and the second slider both extend into the chute. A first screw rod is provided in the chute and is threadedly connected to the first slider and the second slider. The left end of the first screw rod is rotatably connected to the left side surface of the chute, and the right end movably penetrates through the bearing plate on the right side of the chute. The first screw rod drives the first slider and the second slider to move relative to or away from each other.

[0008] Further, a first threaded hole is provided on the first slider, and a second threaded hole with a thread helix direction opposite to that of the first threaded hole is provided on the second slider. The first slider is threadedly connected to the left part of the first screw rod through the first threaded hole, and the second slider is threadedly connected to the right part of the first screw rod through the second threaded hole. The thread on the left part of the first screw rod matches the thread in the first threaded hole, and the thread on the right part matches the thread in the second threaded hole.

[0009] Further, the sleeve is a rectangular tube with an open lower end, and the movable rod is a rectangular rod whose side wall slidably contacts the inner wall of the sleeve. The second driving member includes a second screw rod. The second screw rod is threadedly connected to the movable rod and its upper end penetrates through the top plate of the sleeve. The second screw rod is rotatably connected to the top plate of the sleeve.

[0010] Further, the scraper is an arc-shaped plate with arc-shaped edges at the front and rear and the arc-shaped protrusions facing upward. The middle part of the top surface of the scraper is fixedly connected to the lower end of the movable rod. The thickness of the scraper gradually thins from the middle to the left and right ends. The intersection of the left end of the top surface and the left end of the bottom surface of the scraper forms a first blade, and the intersection of the right end of the top surface and the right end of the bottom surface of the scraper forms a second blade.

[0011] Further, the distance from the center of the scraper to the left and right clamping plates is equal.

[0012] Through the above technical solutions, the beneficial effects of the present utility model are as follows:

[0013] The first driving member of the present utility model drives the two clamping plates to move relative to each other, enabling the clamping rollers on the clamping plates to clamp the pipeline. Moreover, the present utility model can move along the circumference of the pipeline. After the scraper presses against the pipeline, the scraper can cut the curled edge of the pipeline along with the circumferential movement of the bearing plate; therefore, the present utility model can change the translational motion of the scraper into a circumferential motion, improving the scraping quality of the curled edge.

[0014] The present utility model only needs to rotate the first screw rod on the first driving member to realize the rotational connection between the present utility model and the pipeline. The connection time is short, improving the working efficiency of curled edge cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2It is the cross-sectional front view of the clamping plate of the present utility model connected to the bearing plate by the first driving member;

[0017] Figure 3 It is the cross-sectional front view of the movable rod of the present utility model connected to the sleeve by the second driving member;

[0018] Figure 4 It is the structural schematic diagram of the first screw rod of the present utility model connecting the first slider and the second slider;

[0019] Figure 5 It is the usage state diagram (front view) of the present utility model.

[0020] The reference numerals in the drawings are: 1, bearing plate; 2, clamping plate; 3, clamping roller; 4, rectangular hole; 5, sleeve; 6, movable rod; 7, scraper; 8, chute; 9, first slider; 10, second slider; 11, first screw rod; 12, first threaded hole; 13, second threaded hole; 14, first rotating plate; 15, second screw rod; 16, third threaded hole; 17, second rotating plate; 18, bearing; 19, curled edge; 20, pipeline. Specific Embodiments

[0021] The present utility model will be further described below in conjunction with the drawings and specific embodiments:

[0022] As Figures 1 to 5 shown, a pipeline curled edge cutting device includes a bearing plate 1, a clamping plate 2, a clamping roller 3 and a connecting member; the bearing plate 1 is a rectangular plate, the left and right parts of the bottom surface of the bearing plate 1 are both provided with clamping plates 2, the two clamping plates 2 are symmetric left and right, the clamping plate 2 is a rectangular plate, the clamping plate 2 is slidably connected to the bearing plate 1, the bearing plate 1 is provided with a first driving member, the first driving member drives the two clamping plates 2 to move relatively or away from each other, each clamping plate 2 is provided with a rectangular hole 4, the upper and lower sides of the front and rear sides of the rectangular hole 4 are both rotatably connected with a clamping roller 3, the clamping roller 3 is a cylinder, and the left and right ends of the clamping roller 3 both extend out of the rectangular hole 4; a connecting member is provided at the front end of the bearing plate 1, the connecting member includes a sleeve 5 and a movable rod 6, the sleeve 5 is fixedly connected to the bearing plate 1, the upper end of the movable rod 6 slides into the sleeve 5, the sleeve 5 is provided with a second driving member for driving the movable rod 6 to move up or down, and the lower end of the movable rod 6 is connected with a scraper 7.

[0023] The first driving member includes a sliding groove 8, a first slider 9, and a second slider 10. A sliding groove 8 is recessed upward on the bottom surface of the bearing plate 1. The sliding groove 8 is a rectangular groove that is arranged along the length direction of the bearing plate 1 and has an opening facing downward. The upper ends of the two clamping plates 2 are respectively connected to the first slider 9 and the second slider 10. The first slider 9 and the second slider 10 both extend into the sliding groove 8. The first slider 9 and the second slider 10 are both rectangular blocks that are in sliding contact with the sliding groove 8. A first screw rod 11 that is threadedly connected to the first slider 9 and the second slider 10 is provided in the sliding groove 8. The left end of the first screw rod 11 is rotatably connected to the left side surface of the sliding groove 8, and the right end movably penetrates through the bearing plate 1 on the right side of the sliding groove 8. The right end of the first screw rod 11 is connected to a first rotating plate 14. The first screw rod 11 drives the first slider 9 and the second slider 10 to move relative to each other or away from each other.

[0024] A first threaded hole 12 that penetrates the left and right side surfaces of the first slider 9 is provided on the first slider 9. A second threaded hole 13 that penetrates the left and right side surfaces of the second slider 10 and has a thread helix direction opposite to that of the first threaded hole 12 is provided on the second slider 10. The first slider 9 is threadedly connected to the left part of the first screw rod 11 through the first threaded hole 12, and the second slider 10 is threadedly connected to the right part of the first screw rod 11 through the second threaded hole 13. The thread on the left part of the first screw rod 11 matches the thread in the first threaded hole 12, and the thread on the right part matches the thread in the second threaded hole 13.

[0025] The sleeve 5 is a rectangular tube with an opening at the lower end. The movable rod 6 is a rectangular rod whose side wall is in sliding contact with the inner wall of the sleeve 5. The second driving member includes a second screw rod 15. The second screw rod 15 is threadedly connected to the movable rod 6 and penetrates the top plate of the sleeve 5 at the upper end. A third threaded hole 16 that corresponds to the second screw rod 15 is provided at the central axis of the movable rod 6. The second screw rod 15 is rotatably connected to the top plate of the sleeve 5 through a bearing 18. The upper end of the second screw rod 15 is connected to a second rotating plate 17.

[0026] The scraping blade 7 is an arc-shaped plate with arc-shaped edges at the front and rear sides and an arc-shaped protrusion facing upward. The middle part of the top surface of the scraping blade 7 is fixedly connected to the lower end of the movable rod 6. The thickness of the scraping blade 7 gradually becomes thinner from the middle part to the left and right ends. The intersection of the left end of the top surface and the left end of the bottom surface of the scraping blade 7 forms a first cutting edge, and the intersection of the right end of the top surface and the right end of the bottom surface of the scraping blade 7 forms a second cutting edge.

[0027] The distance from the center of the scraping blade 7 to the left and right clamping plates 2 is equal.

[0028] In the initial state, due to the opposite thread helix directions of the first threaded hole 12 on the first slider 9 and the second threaded hole 13 on the second slider 10, by rotating the first screw rod 11, the first slider 9 and the second slider 10 can be driven to drive the two clamping plates 2 to move away from each other until the distance between the two clamping plates 2 is maximized; since the movable rod 6 is a rectangular rod and can only slide up and down in the rectangular sleeve 5, by rotating the second screw rod 15, the movable rod 6 can be driven to drive the scraping blade 7 to move upward to the limit state;

[0029] In use, the user uses a tool to scrape off a part of the curled edge 19 on the upper part of the pipeline, places the pipeline 20 whose curled edge 19 needs to be removed between the two clamping plates 2, with the curled edge of the pipeline located outside between the two clamping plates, the pre-scraped part of the curled edge 19 of the pipeline 20 is located below the scraper 7, and makes the left end of the pipeline wall face between the two clamping rollers 3 on the left clamping plate 2. At this time, the right end of the pipeline wall faces between the two clamping rollers 3 on the right clamping plate 2. Then, reverse-rotate the first screw 11 to drive the first slider 9 and the second slider 10 to drive the two clamping plates 2 to move relatively. The two clamping plates 2 move relatively until the two clamping plates 2 clamp the pipeline wall. At this time, the two clamping rollers 3 on the left clamping plate 2 press against the upper and lower sides of the left end of the pipeline wall, and the left end of the pipeline wall is located between the two left clamping rollers 3. The two clamping rollers 3 on the right clamping plate 2 press against the upper and lower sides of the right end of the pipeline wall, and the right end of the pipeline wall is located between the two right clamping rollers 3. The utility model can rotate counterclockwise or clockwise along the pipeline and will not fall off; reverse-rotate the second screw 15 to drive the movable rod 6 to drive the scraper 7 to move towards the pre-scraped part of the curled edge 19 of the pipeline until the scraper 7 presses against the pipeline. At this time, when the utility model is rotated counterclockwise, the clamping rollers 3 roll along the pipeline, and the first blade of the scraper 7 moves along the circumference of the pipeline to cut the curled edge 19 of the pipeline. Or when the utility model is rotated clockwise, the second blade of the scraper 7 moves along the circumference of the pipeline to cut the curled edge 19 of the pipeline;

[0030] After the curling edge of the pipeline is cut off, rotate the first screw 11 to make the two clamping plates 2 move away from each other, and the connection between the utility model and the pipeline can be released.

[0031] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Without departing from the spirit of the present utility model, that is, within the scope of disclosure, all equivalent or equivalent deformations or substitutions of the technical solutions of the utility model belong to the protection scope of the present utility model.

Claims

1. A pipe edge cutting device, characterized in that: The invention comprises a bearing plate (1), a clamping plate (2), a clamping roller (3) and a connecting member; the left and right parts of the bottom surface of the bearing plate (1) are both provided with clamping plates (2), the clamping plates (2) are slidably connected to the bearing plate (1), a driving member 1 is provided on the bearing plate (1), the driving member 1 drives the two clamping plates (2) to move relative to or away from each other, each of the clamping plates (2) is provided with a rectangular hole (4), the clamping roller (3) is rotatably connected between the upper part and the lower part of the front and rear side surfaces of the rectangular hole (4), and the left and right ends of the clamping roller (3) both extend out of the rectangular hole (4); the front end of the bearing plate (1) is provided with a connecting member, the connecting member comprises a sleeve (5) and a movable rod (6), the sleeve (5) is fixedly connected to the bearing plate (1), the upper end of the movable rod (6) slides into the sleeve (5), the sleeve (5) is provided with a driving member 2 for driving the movable rod (6) to move upward or downward, and the lower end of the movable rod (6) is connected to a scraper (7).

2. A pipe edge cutting device according to claim 1, characterized in that: The driving member 1 comprises a slide groove (8), a slider 1 (9) and a slider 2 (10); the bottom surface of the carrying plate (1) is recessed with a slide groove (8) upward; the upper ends of the two clamping plates (2) are respectively connected with the slider 1 (9) and the slider 2 (10); the slider 1 (9) and the slider 2 (10) are both extended into the slide groove (8); a screw rod 1 (11) is provided in the slide groove (8) and is threadedly connected with the slider 1 (9) and the slider 2 (10); the left end of the screw rod 1 (11) is rotatably connected to the left side of the slide groove (8); the right end of the screw rod 1 (11) is movably connected to the carrying plate (1) on the right side of the slide groove (8); the screw rod 1 (11) drives the slider 1 (9) and the slider 2 (10) to move relative to or opposite to each other.

3. A pipe edge cutting device according to claim 2, characterized in that: The slider one (9) is provided with a threaded hole one (12), and the slider two (10) is provided with a threaded hole two (13) having a threaded direction opposite to that of the threaded hole one (12). The slider one (9) is threadedly connected to the left part of the screw rod one (11) through the threaded hole one (12), and the slider two (10) is threadedly connected to the right part of the screw rod one (11) through the threaded hole two (13). The thread of the left part of the screw rod one (11) matches the thread in the threaded hole one (12), and the thread of the right part matches the thread in the threaded hole two (13).

4. A pipe edge cutting device according to claim 1, characterized in that: The sleeve (5) is a rectangular tube with an opening at the lower end, the movable rod (6) is a rectangular rod with a side wall slidingly contacting the inner wall of the sleeve (5), and the second driving member comprises a second screw rod (15), the second screw rod (15) is threadedly connected to the movable rod (6), and the upper end of the screw rod passes through the top plate of the sleeve (5), and the second screw rod (15) is rotatably connected to the top plate of the sleeve (5).

5. The pipe edge cutting device according to claim 1, characterized in that: The scraper (7) is an arc-shaped plate with arc-shaped edges at the front and rear edges and arc-shaped protrusions facing upwards. The middle of the top surface of the scraper (7) is fixedly connected to the lower end of the movable rod (6). The thickness of the scraper (7) gradually becomes thinner from the middle to the left and right ends of the scraper (7). The left end of the top surface of the scraper (7) and the left end of the bottom surface intersect to form a first blade, and the right end of the top surface of the scraper (7) and the right end of the bottom surface intersect to form a second blade.

6. A pipe edge cutting device according to claim 5, characterized in that: The distances from the center of the scraper (7) to the left and right clamping plates (2) are equal.

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