A plastic-coated steel pipe spraying processing equipment

CN224373660UActive Publication Date: 2026-06-19HEBEI HENGYUAN PIPELINE EQUIP GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI HENGYUAN PIPELINE EQUIP GRP CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-19

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    Figure CN224373660U_ABST
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Abstract

This utility model discloses a plastic-coated steel pipe spraying processing equipment, including a rotatable three-jaw chuck, a rotatable support roller on a processing base, a steel pipe placed on the upper end of the support roller, a movable seat on one side of the processing base, and an mounting plate on the side of the movable seat facing the steel pipe. The mounting plate is equipped with a rotatable wire brush, an adjustable cleaning brush, a spray pipe, and a blow pipe. This utility model, by setting an mounting plate on one side of the steel pipe and sequentially arranging the wire brush, cleaning brush, blow pipe, and spray pipe on the mounting plate, allows the steel pipe to be polished by the wire brush to remove the oxide layer or rust stains on its surface. The blow pipe blows away the impurities removed by the polishing, while the cleaning brush cleans the polished area, removing dust and impurities from the steel pipe surface. Finally, the spray pipe sprays the coating onto the polished and cleaned area of ​​the steel pipe. The entire process eliminates the need for transporting the steel pipe, greatly facilitating the plastic coating process.
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Description

Technical Field

[0001] This utility model relates to the technical field of steel pipe processing equipment, specifically to a plastic-coated steel pipe spraying processing equipment. Background Technology

[0002] Plastic-coated steel pipes use steel pipes as the base material and spray a layer of plastic anti-corrosion coating onto the surface to improve the corrosion resistance of the steel pipes. Currently, during the plastic coating process, the steel pipes are generally placed on a rotating fixture, which drives the steel pipe to rotate. A spray pipe is arranged on one side of the steel pipe, and the coating material in the spraying equipment is transported through pipelines and finally evenly sprayed onto the surface of the steel pipe through the spray pipe. However, in the actual spraying process, due to the potential formation of oxide scale on the surface of the steel pipe during storage and the easy adhesion of various floating impurities, it is necessary to clean the surface of the steel pipe in order to improve the plastic coating performance. This requires first placing the steel pipe on a cleaning fixture for manual or automatic cleaning, and then transferring the cleaned steel pipe to the spraying station. The entire process requires transferring the steel pipe between different pieces of equipment, which greatly increases the workload of the spraying work and brings greater inconvenience to production. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a plastic-coated steel pipe spraying processing equipment to solve the aforementioned technical problems.

[0004] The present invention adopts the following technical solution: a plastic-coated steel pipe spraying processing equipment, including a rotatable three-jaw chuck set on one side of a processing base, the three-jaw chuck gripping one end of a steel pipe, a rotatable support roller set on the processing base at the position corresponding to the steel pipe, the steel pipe being placed on the upper end of the support roller, a movable seat set on one side of the processing base that can move left and right, an installation plate set on the side of the movable seat facing the steel pipe that can move back and forth, a rotatable wire brush, an adjustable cleaning brush and a spraying pipe set sequentially from right to left on the installation plate, the spraying pipe being connected to a spraying device via a hose, and a purging pipe set on the installation plate at the position corresponding to the wire brush, the purging pipe being connected to an air supply device via a hose.

[0005] Furthermore, a motor is provided on the mounting plate at the position corresponding to the wire brush. The wire brush is driven to rotate by the motor, and the bristles of the wire brush come into contact with the surface of the steel pipe.

[0006] Furthermore, a cylindrical base is provided on the mounting plate at the position corresponding to the cleaning brush. The cylindrical base has a mounting cavity on the side facing the steel pipe. A retaining edge is provided at the port of the mounting cavity. A telescopic rod is provided inside the mounting cavity. One end of the telescopic rod passes through the retaining edge and extends outward from the cylindrical base. A limiting edge is provided at the end of the telescopic rod inside the mounting cavity. The limiting edge cooperates with the retaining edge to restrict the telescopic rod inside the mounting cavity. A spring seat is fitted at the end of the telescopic rod outside the cylindrical base. The brush handle of the cleaning brush is fixedly connected to the end of the telescopic rod. One end of the spring seat is fixedly connected to the brush handle, and the other end of the spring seat is fixedly connected to the end of the cylindrical base.

[0007] Furthermore, a baffle is provided on the mounting plate at the position corresponding to the cleaning brush and the spray tube, and the baffle has an avoidance groove on the side facing the steel pipe that is adapted to the shape of the steel pipe.

[0008] Furthermore, an electric push rod is provided on the top of the movable seat, the piston rod of the electric push rod is arranged facing the steel pipe side, and the mounting plate is provided at the end of the piston rod.

[0009] Furthermore, the lower end of the movable seat is provided with a support guide rod extending towards the steel pipe, and the lower end of the support guide rod passes through the lower end of the mounting plate.

[0010] Furthermore, two symmetrical upright plates are provided on one side of the processing base, and a transmission screw is provided between the upright plates. A servo motor that drives the transmission screw to rotate is provided on one upright plate, and the transmission screw passes through the movable seat.

[0011] Furthermore, guide rods are provided between the two upright plates at positions corresponding to the two sides of the transmission screw, and the guide rods pass through the movable seat.

[0012] The above-mentioned technical solution of this utility model has the following beneficial effects: This utility model sets an installation plate on one side of the steel pipe, and sets a wire brush, a cleaning brush, a blowing pipe and a spraying pipe in sequence on the installation plate. The steel pipe is polished by the wire brush to remove the oxide layer or rust stains on its surface. The blowing pipe blows away the impurities that have been polished off, while the cleaning brush cleans the polished area to remove dust and impurities from the surface of the steel pipe. Finally, the spraying pipe sprays the coating onto the polished and cleaned area of ​​the steel pipe. The whole process does not require the steel pipe to be transported, which brings great convenience to the coating work. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a top view schematic diagram of the structure of an embodiment of the present utility model;

[0015] Figure 2 This is a side view of the wire brush in an embodiment of the present invention;

[0016] Figure 3 This is a side view of the cleaning brush in an embodiment of the present invention;

[0017] Figure 4 This is a side view of the baffle in an embodiment of the present invention. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0020] like Figure 1-4 As shown, this utility model embodiment provides a plastic-coated steel pipe spraying processing equipment, including a rotatable three-jaw chuck 2 set on one side of a processing base 1, the three-jaw chuck 2 gripping one end of the steel pipe, a rotatable support roller 3 set on the processing base 1 at the position corresponding to the steel pipe, the steel pipe being placed on the upper end of the support roller 3, a movable seat 4 that can move left and right set on one side of the processing base 1, an installation plate 5 that can move back and forth set on the side of the movable seat 4 facing the steel pipe, a rotatable wire brush 6, an adjustable cleaning brush 7 and a spray pipe 8 arranged sequentially from right to left on the installation plate 5, the spray pipe 8 being connected to a spraying device through a hose, the spraying device storing the paint to be sprayed, the paint being pumped by a pump body, a purging pipe 9 set on the installation plate 5 above the corresponding position of the wire brush 6, the purging pipe 9 being connected to an air supply device through a hose, the air supply device being an air pump, the air pump delivering high-pressure gas through the hose to the purging pipe 9 and blowing it out.

[0021] A motor 10 is installed on the mounting plate 5 at the position corresponding to the wire brush 6. The wire brush 6 is driven to rotate by the motor 10, and the bristles of the wire brush 6 come into contact with the surface of the steel pipe.

[0022] A cylindrical base 11 is provided on the mounting plate 5 at the position corresponding to the cleaning brush 7. The cylindrical base 11 has a mounting cavity 11a on the side facing the steel pipe. A retaining edge is provided at the port of the mounting cavity 11a. A telescopic rod 12 is provided in the mounting cavity 11a. One end of the telescopic rod 12 passes through the retaining edge and extends outward from the cylindrical base 11. A limiting edge 12a is provided at the end of the telescopic rod 12 located in the mounting cavity 11a. The limiting edge 12a cooperates with the retaining edge to restrict the telescopic rod 12 within the mounting cavity 11a. A spring seat 13 is sleeved on the end of the telescopic rod 12 located outside the cylindrical base 11. The brush handle of the cleaning brush 7 is fixedly connected to the end of the telescopic rod 12. One end of the spring seat 13 is fixedly connected to the brush handle. The other end of the spring seat 13 is fixedly connected to the end of the cylindrical base 11.

[0023] When not in operation, the spring seat 13 causes the end limit edge 12a of the telescopic rod 12 to rest against one side of the retaining edge. When the cleaning brush 7 comes into contact with the outer wall of the steel pipe, it will squeeze the spring seat 13 and cause the end limit edge 12a of the telescopic rod 12 to move into the interior of the mounting cavity 11a.

[0024] A baffle 14 is provided on the mounting plate 5 at the position between the corresponding cleaning brush 7 and the spray pipe 8. The baffle 14 has a relief groove 14a on the side facing the steel pipe that is adapted to the shape of the steel pipe. The baffle 14 can block the gap between the spray pipe 8 and the cleaning brush 7, thereby preventing the paint sprayed from the spray pipe 8 from splashing onto the cleaning brush 7 and the wire brush 6, thus playing a protective role.

[0025] An electric push rod 15 is provided on the top of the movable seat 4. The piston rod of the electric push rod 15 is arranged facing the steel pipe side, and the mounting plate 5 is provided at the end of the piston rod.

[0026] The lower end of the movable seat 4 is provided with a support guide rod 16 extending towards the steel pipe, and the lower end of the support guide rod 16 passes through the lower end of the mounting plate 5.

[0027] Two symmetrical vertical plates 17 are provided on one side of the processing base 1, and a transmission screw 18 is provided between the vertical plates 17. A servo motor 19 that drives the transmission screw 18 to rotate is provided on one side of the vertical plate 17, and the transmission screw 18 passes through the movable seat 4.

[0028] Guide rods 20 are provided between the two upright plates 17 at the positions corresponding to the two sides of the transmission screw 18, and the guide rods 20 pass through the movable seat 4.

[0029] The working principle of this utility model is as follows: A steel pipe is placed on the support roller 3, and then a three-jaw chuck grips one end of the steel pipe. The rotation of the three-jaw chuck drives the steel pipe to rotate along the support roller 3. Subsequently, the servo motor 19 drives the transmission screw 18 to rotate. At this time, the movable seat 4 can slide along the guide rod 20. When starting work, the movable seat 4 rests on one end of the steel pipe. The electric push rod 15 pushes the movable plate 5 to one side of the steel pipe, causing the bristles of the wire brush 6 and the cleaning brush to contact the surface of the dry steel pipe. The motor 10 drives the wire brush 6 to rotate and polish the surface of the steel pipe, thereby removing oxide scale, rust, and other impurities. Simultaneously, the blowing pipe 9 blows air onto the surface of the steel pipe, thereby blowing away the dust cleaned from the surface. The movable seat 4 moves from the steel pipe... One end moves to the other end of the steel pipe. Thus, the wire brush 6 can polish the surface of the steel pipe as the movable seat 4 moves and the steel pipe rotates. Then, the hard bristles on the cleaning brush 7 contact the outer wall of the steel pipe and perform a secondary cleaning, thereby ensuring the cleanliness of the steel pipe surface. The cleaning brush 7 is connected to the cylinder seat 11 through the movable telescopic rod 12. The spring seat 13 can abut against the bristles of the cleaning brush 7 and contact the surface of the steel pipe. At this time, the cleaning brush 7 squeezes the spring seat 13, and the telescopic rod 12 moves into the mounting cavity 11a. As the cleaning brush 7 wears down, the telescopic rod 12 drives the cleaning brush 7 to maintain contact with the steel pipe under the action of the elastic force of the spring seat 13. Finally, the spray pipe 8 moves to the part of the steel pipe that has been cleaned by the wire brush 6 and the cleaning brush 7 and performs the spraying operation. In this way, the entire outer wall of the steel pipe can be sprayed.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A plastic-coated steel pipe spraying processing equipment, characterized in that: The device includes a rotatable three-jaw chuck on one side of a processing base, which grips one end of a steel pipe. A rotatable support roller is also installed on the processing base at the position corresponding to the steel pipe, with the steel pipe placed on top of the support roller. A movable seat that can move left and right is provided on one side of the processing base. A mounting plate that can move back and forth is provided on the side of the movable seat facing the steel pipe. From right to left, a rotatable wire brush, an adjustable cleaning brush, and a spray pipe are arranged on the mounting plate. The spray pipe is connected to a spraying device via a hose. A purging pipe is provided on the mounting plate above the wire brush, and the purging pipe is connected to an air supply device via a hose.

2. The plastic-coated steel pipe spraying equipment according to claim 1, characterized in that: A motor is installed on the mounting plate at the position corresponding to the wire brush. The wire brush is driven to rotate by the motor, and the bristles of the wire brush come into contact with the surface of the steel pipe.

3. The plastic-coated steel pipe spraying equipment according to claim 1, characterized in that: The mounting plate has a cylindrical base at the position corresponding to the cleaning brush. The cylindrical base has a mounting cavity on the side facing the steel pipe. A retaining edge is provided at the port of the mounting cavity. A telescopic rod is provided inside the mounting cavity. One end of the telescopic rod passes through the retaining edge and extends outward from the cylindrical base. A limiting edge is provided at the end of the telescopic rod inside the mounting cavity. The limiting edge cooperates with the retaining edge to restrict the telescopic rod within the mounting cavity. A spring seat is fitted at the end of the telescopic rod outside the cylindrical base. The brush handle of the cleaning brush is fixedly connected to the end of the telescopic rod. One end of the spring seat is fixedly connected to the brush handle, and the other end of the spring seat is fixedly connected to the end of the cylindrical base.

4. The plastic-coated steel pipe spraying equipment according to claim 1, characterized in that: A baffle is provided on the mounting plate at the position corresponding to the cleaning brush and the spray tube. The baffle has a relief groove on the side facing the steel pipe that is adapted to the shape of the steel pipe.

5. The plastic-coated steel pipe spraying equipment according to claim 1, characterized in that: An electric push rod is provided on the top of the movable seat, the piston rod of the electric push rod is arranged facing the steel pipe side, and the mounting plate is provided at the end of the piston rod.

6. The plastic-coated steel pipe spraying equipment according to claim 5, characterized in that: The lower end of the movable seat is provided with a support guide rod extending towards the steel pipe, and the lower end of the support guide rod passes through the lower end of the mounting plate.

7. The plastic-coated steel pipe spraying equipment according to claim 1, characterized in that: Two symmetrical vertical plates are provided on one side of the processing base, and a transmission screw is provided between the vertical plates. A servo motor that drives the transmission screw to rotate is provided on one side of the vertical plate, and the transmission screw passes through the movable seat.

8. The plastic-coated steel pipe spraying equipment according to claim 7, characterized in that: Guide rods are provided between the two upright plates at positions corresponding to the two sides of the transmission screw, and the guide rods pass through the movable seat.