Plastic-coated composite steel pipe welding reserved port protection device

Abstract

The utility model discloses a plastic-coated composite steel pipe welding reserved port protection device which comprises two sets of symmetrically-arranged machine frames, a displacement plate is installed on the machine frames through a transverse moving assembly, and a plurality of sets of symmetrically-arranged vertical plates are installed on the top face of the displacement plate. A first longitudinal moving plate and a second longitudinal moving plate are slidably connected to the two vertical plates in the same group through sliding assemblies, the first longitudinal moving plate is pushed through an air cylinder arranged between the two vertical plates, a driving motor is installed on the first longitudinal moving plate, and a rotating shaft is connected to the output end of the driving motor; the other end of the rotating shaft penetrates through a bearing assembly arranged on the second longitudinal moving plate through a bearing and then is connected with a steel pipe clamp, and a protection sleeve is installed on the steel pipe clamp. The two ends of the steel pipe are protected through the two symmetrically-arranged protection sleeves, the end portions of the pipe fitting are prevented from being coated with powder in the spraying process, and the working efficiency of the follow-up welding process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of production equipment for plastic - coated composite steel pipes, in particular to a protection device for welding reserved ports of plastic - coated composite steel pipes. Background Technique

[0002] The plastic - coated composite steel pipe is a steel pipe with a protective function, which can effectively prevent the surface of the steel pipe from being corroded and oxidized, and can also be used to transport fluids such as water and gas inside. During the production process of pipe fittings, since 100 - 300 mm of the end part needs to be reserved for welding, in the prior art, when spraying the outer wall of pipe fittings, the end parts of the pipe fittings are also sprayed. However, in the subsequent process, the end parts need to be welded, and the spraying on the end parts of the pipe fittings will greatly affect the welding effect, and the sprayed coating needs to be scraped off before welding, which greatly reduces the work efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide a protection device for welding reserved ports of plastic - coated composite steel pipes to solve the above problems.

[0004] To solve the above - mentioned technical problems, the utility model adopts the following technical solutions:

[0005] A protection device for welding reserved ports of plastic - coated composite steel pipes of the utility model includes two groups of symmetrically arranged frames. A displacement plate is installed on the frames through a transverse movement assembly. On the top surface of the displacement plate, a number of groups of two symmetrically arranged vertical plates are installed. On the same group of two vertical plates, a first longitudinal movement plate and a second longitudinal movement plate are slidably connected through a sliding assembly. The first longitudinal movement plate is pushed by a cylinder arranged between the two vertical plates. A driving motor is installed on the first longitudinal movement plate. The output end of the driving motor is connected with a rotating shaft. The other end of the rotating shaft passes through a supporting assembly arranged on the second longitudinal movement plate through a bearing and is then connected with a steel pipe clamp. A protection sleeve is installed on the steel pipe clamp.

[0006] Further, the transverse movement assembly includes a rack and a first slide rail installed on the frame. One side of the displacement plate is connected with a transverse movement motor. The output end of the transverse movement motor is connected with a gear. The gear meshes with the rack. The bottom of the displacement plate is connected with a first slider. The first slider is slidably connected to the first slide rail. The top surface height of the first slider is higher than the top height of the rack.

[0007] Further, the transverse movement motor is connected to one side of the displacement plate through a mounting plate.

[0008] Further, the sliding assembly includes a second slide rail disposed on the top surface of the vertical plate and a second slider connected to the bottoms of the first longitudinal moving plate and the second longitudinal moving plate, and the second slider is slidably connected to the second slide rail.

[0009] Further, the cylinder is fixed on the displacement plate, and the piston end of the cylinder is connected to the first longitudinal moving plate through a connecting plate.

[0010] Further, the supporting assembly includes a supporting sleeve, the supporting sleeve is installed on the second longitudinal moving plate, bearings are installed at both ends of the supporting sleeve, and the rotating shaft passes through the center of the supporting sleeve.

[0011] Further, the steel pipe clamp includes a circular top plate connected to the end of the rotating shaft, three triangular clamping plates are connected to the circular top plate, the included angle between two adjacent triangular clamping plates is 120°, three clamping grooves corresponding to the triangular clamping plates are formed on the protection sleeve, the protection sleeve is clamped on the triangular clamping plates through the clamping grooves, three fixing ears are connected to the outer wall of the protection sleeve, threaded holes are formed in the fixing ears, a strip-shaped hole is formed at the position of the circular top plate on one side of the triangular clamping plate, and the fixing ears and the strip-shaped hole are connected by bolts.

[0012] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0013] The present utility model protects both ends of the steel pipe through two symmetrically arranged protection sleeves, preventing the ends of the pipe fittings from being coated with powder during the spraying process and improving the working efficiency of the subsequent welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present utility model with reference to the accompanying drawings.

[0015] Figure 1 is a top view of the protection device for the welding reserved port of the plastic-coated composite steel pipe of the present utility model;

[0016] Figure 2 is Figure 1 the enlarged view at A in

[0017] Figure 3 is a view of the protection device for the welding reserved port of the plastic-coated composite steel pipe of the present utility model;

[0018] Figure 4 is a rear view of the steel pipe clamp;

[0019] Figure 5 is a front view of the supporting sleeve;

[0020] Description of reference numerals: 1, frame; 2, displacement plate; 3, vertical plate; 4, first longitudinal displacement plate; 5, second longitudinal displacement plate; 6, cylinder; 7, drive motor; 8, rotating shaft; 9, steel pipe clamp; 10, protective sleeve; 11, rack; 12, first slide rail; 13, transverse movement motor; 14, gear; 15, first slider; 16, mounting plate; 17, second slide rail; 18, second slider; 19, connecting plate; 20, supporting sleeve; 21, circular top plate; 22, triangular clamping plate; 23, clamping groove; 24, fixed ear; 25, strip-shaped hole. Detailed implementation manner

[0021] As Figures 1-5 shown, a protection device for the welding reserved port of a plastic-coated composite steel pipe includes two sets of symmetrically arranged frames 1. A displacement plate 2 is installed on the frame 1 through a transverse movement assembly. The transverse movement assembly includes a rack 11 and a first slide rail 12 installed on the frame 1. One side of the displacement plate 2 is connected with a transverse movement motor 13 through a mounting plate 16. A gear 14 is connected to the output end of the transverse movement motor 13. The gear 14 meshes with the rack 11. The bottom of the displacement plate 2 is connected with a first slider 15. The first slider 15 is slidably connected to the first slide rail 12. The top surface height of the first slider 15 is higher than the top height of the rack 11.

[0022] A plurality of sets of two symmetrically arranged vertical plates 3 are installed on the top surface of the displacement plate 2. A first longitudinal displacement plate 4 and a second longitudinal displacement plate 5 are slidably connected through a sliding assembly on the two vertical plates 3 in the same group. The sliding assembly includes a second slide rail 17 arranged on the top surface of the vertical plate 3 and second sliders 18 connected to the bottoms of the first longitudinal displacement plate 4 and the second longitudinal displacement plate 5. The second sliders 18 are slidably connected to the second slide rail 17.

[0023] The first longitudinal displacement plate 4 is pushed by a cylinder 6 arranged between the two vertical plates 3. The cylinder 6 is fixed on the displacement plate 2. The piston end of the cylinder 6 is connected with the first longitudinal displacement plate 4 through a connecting plate 19.

[0024] A drive motor 7 is installed on the first longitudinal displacement plate 4. A rotating shaft 8 is connected to the output end of the drive motor 7. The other end of the rotating shaft 8 is connected with a steel pipe clamp 9 through a bearing after passing through a supporting assembly arranged on the second longitudinal displacement plate 5. The supporting assembly includes a supporting sleeve 20. The supporting sleeve 20 is installed on the second longitudinal displacement plate 5. The bearings are installed at both ends of the supporting sleeve 20. The rotating shaft 8 passes through the center of the supporting sleeve 20.

[0025] A protective sleeve 10 is installed on the steel pipe clamp 9. The steel pipe clamp 9 includes a circular top plate 21 connected to the end of the rotating shaft 8. Three triangular clamping plates 22 are connected to the circular top plate 21. The included angle between two adjacent triangular clamping plates 22 is 120°. Three card slots 23 corresponding to the triangular clamping plates 22 are provided on the protective sleeve 10. The protective sleeve 20 is clamped on the triangular clamping plates 22 through the card slots 23. Three fixing ears 24 are connected to the outer wall of the protective sleeve 20. Threaded holes are provided on the fixing ears 24. A strip-shaped hole 25 is provided at a position on the circular top plate 21 on one side of the triangular clamping plate 22. The fixing ears 24 and the strip-shaped hole 25 are connected by bolts.

[0026] The operation process of the present utility model is as follows:

[0027] During use, according to the model of the pipe fitting, select a protective sleeve 10 with an appropriate diameter. Then, clamp the protective sleeve 10 on the triangular clamping plates 22 through the card slots 23. Then, fix the protective sleeve 10 on the circular top plate 21 by passing bolts through the fixing ears 24 and the strip-shaped hole 25. Then, drive the first longitudinal moving plate 4 and the second longitudinal moving plate 5 to move by the air cylinder 6, so that both ends of the pipe fitting are inserted into the two protective sleeves 10. Then, the air cylinder 6 continues to work, so that the triangular clamping plates 22 are inserted into the interior of the pipe fitting, and the pipe fitting is clamped by two symmetrical steel pipe clamps 9. Then, the transverse movement motor 13 drives the displacement plate 2 to move transversely, so that the pipe fitting is placed in the powder spraying chamber. Then, the driving motor 7 drives the pipe fitting to rotate, and at the same time, the powder spraying chamber sprays powder on the pipe fitting for coating.

[0028] The embodiments described above are only descriptions of the preferred modes of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A plastic-coated composite steel pipe welding reserved port protection device, characterized in that: The invention comprises two groups of symmetrically arranged frames (1), wherein a displacement plate (2) is installed on the frame (1) through a transverse movement assembly, and a plurality of groups of symmetrically arranged two vertical plates (3) are installed on the top surface of the displacement plate (2), and a first longitudinal movement plate (4) and a second longitudinal movement plate (5) are slidably connected on the two vertical plates (3) of the same group through a sliding assembly, and the first longitudinal movement plate (4) is pushed by a cylinder (6) arranged between the two vertical plates (3), and a driving motor (7) is installed on the first longitudinal movement plate (4), and a rotating shaft (8) is connected to the output end of the driving motor (7), and the other end of the rotating shaft (8) passes through a supporting assembly arranged on the second longitudinal movement plate (5) through a bearing and is connected to a steel pipe clamp (9), and a protective sleeve (10) is installed on the steel pipe clamp (9).

2. The plastic-coated composite steel pipe welding reserved port protection device according to claim 1 is characterized in that: The transverse movement assembly comprises a rack (11) and a first slide rail (12) mounted on the frame (1); a transverse movement motor (13) is connected to one side of the displacement plate (2); a gear (14) is connected to the output end of the transverse movement motor (13); the gear (14) is meshed with the rack (11); a first slider (15) is connected to the bottom of the displacement plate (2); the first slider (15) is slidably connected to the first slide rail (12); the top surface height of the first slider (15) is higher than the top height of the rack (11).

3. The plastic-coated composite steel pipe welding reserved port protection device according to claim 2 is characterized in that: The transverse movement motor (13) is connected to one side of the displacement plate (2) via a mounting plate (16).

4. The plastic-coated composite steel pipe welding reserved port protection device according to claim 1 is characterized in that: The sliding assembly comprises a second sliding rail (17) arranged on the top surface of the vertical plate (3) and a second sliding block (18) connected to the bottom of the first longitudinal moving plate (4) and the second longitudinal moving plate (5), and the second sliding block (18) is slidably connected to the second sliding rail (17).

5. The plastic-coated composite steel pipe welding reserved port protection device according to claim 1 is characterized in that: The cylinder (6) is fixed on the displacement plate (2), and the piston end of the cylinder (6) is connected to the first longitudinal displacement plate (4) via a connecting plate (19).

6. The plastic-coated composite steel pipe welding reserved port protection device according to claim 1 is characterized in that: The supporting assembly comprises a supporting sleeve (20), the supporting sleeve (20) is mounted on the second longitudinal displacement plate (5), the bearings are mounted on both ends of the supporting sleeve (20), and the rotating shaft (8) passes through the center of the supporting sleeve (20).

7. The plastic-coated composite steel pipe welding reserved port protection device according to claim 1 is characterized in that: The steel pipe clamp (9) comprises a circular top plate (21) connected to the end of the rotating shaft (8), three triangular clamping plates (22) are connected to the circular top plate (21), and the angle between two adjacent triangular clamping plates (22) is 120°. The protective sleeve (10) is provided with three clamping grooves (23) corresponding to the triangular clamping plates (22), and the protective sleeve (10) is clamped on the triangular clamping plates (22) through the clamping grooves (23). Three fixing ears (24) are connected to the outer wall of the protective sleeve (10), and threaded holes are provided on the fixing ears (24). The circular top plate (21) is provided with a strip hole (25) at a position on one side of the triangular clamping plate (22), and the fixing ears (24) and the strip hole (25) are connected by bolts.

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