Surface coating removing equipment for plastic-coated steel pipe

Abstract

The utility model relates to the technical field of plastic-coated steel pipe defective product treatment, in particular to plastic-coated steel pipe surface coating removing equipment. According to the technical scheme, the device comprises a cabinet body, a scraping sliding rail and a polishing sliding rail, a fixing frame is fixedly installed on the upper portion in the cabinet body, two sliding rods are fixedly installed on the front side in the fixing frame, two clamping plates are slidably installed on the outer walls of the sliding rods, and rotating motors are fixedly installed on the lower portions of the outer sides of the clamping plates; and the output end of the rotating motor penetrates through the clamping plate and is fixedly provided with a fixed disc. Through the combination of various structures, the device can remove the coating on the surface of the plastic-coated steel pipe in a chemical mode, the chemical mode reduces the harmfulness when the coating of the plastic-coated steel pipe is removed, and the situation that follow-up use is affected is avoided, so that the service life of the plastic-coated steel pipe is prolonged, and the service life of the plastic-coated steel pipe is prolonged. And the equipment can polish and grind the outer wall of the cleaned steel pipe, so that the cleanliness and smoothness of the outer wall of the steel pipe are improved, and a worker can conveniently process the steel pipe subsequently.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic-coated steel pipe defective product processing, in particular to a device for removing the surface coating of a plastic-coated steel pipe. Background Art

[0002] Plastic-coated steel pipe, also known as plastic-coated pipe, steel-plastic composite pipe or plastic-coated composite steel pipe, is a steel-plastic composite steel pipe with a steel pipe as the base, and a layer of plastic anti-corrosion layer is welded on the inner and outer surfaces of the steel pipe through processes such as spraying, rolling, dipping and sucking. There is a certain probability of defective products when processing plastic-coated steel pipes. When recycling defective plastic-coated steel pipes, it is necessary to remove the coating on the surface. Therefore, it is necessary to use plastic-coated steel pipe surface coating removal equipment. The application number is "CN215314462U" disclosed in "A plastic-coated steel pipe surface coating removal equipment", which has solved the technical disadvantages of low processing effect resulting in no reuse value, but in actual use At present, equipment with similar structures still has many defects. For example, most of them remove the outer wall of the steel pipe by heating. Although the heating method can meet the needs of removing the coating on the outer wall of the pipeline, it will cause thermal expansion and creep of the metal material when the metal steel pipe is heated, thereby affecting the sealing and stability of the steel pipe in the later stage; at the same time, after the coating on the outer wall of the steel pipe is removed, it does not have the function of polishing its surface. The coating will remain on the outer wall of the steel pipe, and the personnel can only polish it manually later, which increases the process of removing the coating on the steel pipe and increases the workload of the personnel. Therefore, it is necessary to design a surface coating removal equipment for plastic-coated steel pipes. Utility Model Content

[0003] The purpose of the utility model is to provide a device for removing coating on the surface of a plastic-coated steel pipe to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a device for removing coatings from the surface of plastic-coated steel pipes, comprising a cabinet body and a scraping slide rail and a grinding slide rail, a fixed frame is fixedly installed on the upper part of the interior of the cabinet body, and two groups of sliding rods are fixedly installed on the front side of the fixed frame, two groups of clamping plates are slidably installed on the outer wall of the sliding rod, a rotating motor is fixedly installed on the lower part of the outer side of the clamping plate, and a fixed disk is fixedly installed on the output end of the rotating motor through the clamping plate, a liquid distribution pipe is fixedly installed on the lower part of the interior of the cabinet body, and a plurality of groups of nozzles are fixedly installed at equal distances on the front side of the liquid distribution pipe, the front side of the scraping slide rail is slidably installed on the scraping push rod, and a cleaning scraper is fixedly installed on the output end of the scraping push rod, the front side of the grinding slide rail is slidably installed on the grinding push rod, a grinding motor is fixedly installed on the front side of the grinding push rod, and a grinding wheel is fixedly installed on the output end of the grinding motor, and a closing door is movably installed on the front side of the cabinet body.

[0005] A surface coating removal device for plastic-coated steel pipes using the technical solution, two groups of clamping plates can expand outward and retract on the sliding rod, so that the plastic-coated steel pipe can be clamped and fixed by the clamping plates and the fixed plate installed inside, opposite threads are arranged on both sides of the outer wall of the threaded rod, and the two sides of the threaded rod are respectively threadedly connected with the two groups of clamping plates, so that the clamping plates and the fixed plate can be expanded outward and retracted inward by the rotation of the threaded rod, and the driving motor can drive the threaded rod to rotate, and the liquid distribution pipe is connected with the external chemical agent equipment, so that the outer wall of the plastic-coated steel pipe fixed in the clamping plate can be sprayed with acid cleaning agent or alkaline cleaning agent through the liquid distribution pipe and the nozzle, and the staff can replace the chemical agent according to the material of the surface coating of the plastic-coated steel pipe, so that the coating on the outer wall of the plastic-coated steel pipe can be removed by chemical means, and the situation that the internal structure of the steel pipe is affected by the chemical cleaning method is avoided, and the safety of cleaning the outer wall of the plastic-coated pipe is increased. The chemical method has a better effect than heating cleaning;

[0006] The rotating motor can drive the fixed disk and the plastic-coated steel pipe to rotate, so that the spray head can evenly spray chemicals on the surface of the plastic-coated steel pipe. The control valve can control the opening and closing of the spray heads on both sides of the liquid distribution pipe, so that the chemicals can be sprayed on the steel pipes according to their lengths at the same time, avoiding the equipment being able to only remove the coating of a single length of plastic-coated steel pipes, reducing the limitations of the equipment, and the scraping push rod can extend the scraper forward, and the scraper can contact the outer wall of the plastic-coated steel pipe by extending forward, so that after the chemical agent is sprayed on the surface of the plastic-coated steel pipe, the scraper can scrape off the detached coating on the surface, avoiding the residue on the surface, and the scraping rail can move the scraper, so that the scraper can scrape the outer wall of the plastic-coated steel pipe.

[0007] The grinding push rod can extend the grinding wheel and the grinding motor forward, so that the grinding wheel can contact the outer wall of the steel pipe after being scraped by the cleaning scraper. The grinding motor drives the grinding wheel to rotate to grind and polish the outer wall of the steel pipe after the coating is removed. Polishing the outer wall of the steel pipe increases the cleanliness and smoothness of the outer wall, which is convenient for the staff to process it later and avoids the need for manual polishing by personnel, which increases the processing procedures and workload of personnel. The closing door can close the front of the equipment during operation, thereby avoiding dust pollution of the air during polishing of the outer wall of the steel pipe.

[0008] Preferably, a threaded rod is rotatably mounted on the inner side of the fixing frame, and a driving motor whose output end is connected to the threaded rod is fixedly mounted on the outer side of the fixing frame. The driving motor drives the threaded rod to expand or retract the clamping plate.

[0009] Preferably, a plurality of control valves are fixedly installed at equal distances on both sides of the liquid distribution pipe. The control valves can control the opening and closing of the nozzles on both sides of the liquid distribution pipe.

[0010] Preferably, a recycling box is fixedly installed at the bottom of the cabinet, and a funnel box is fixedly installed at the bottom of the recycling box. The recycling box can recycle the coating removed by the equipment, and the funnel box can discharge the coating recycled inside the recycling box, which is convenient for the staff to carry out centralized processing.

[0011] Preferably, legs are fixedly installed on both sides of the bottom of the cabinet, and foot plates are fixedly installed at the bottom of the legs. The legs can support the bottom of the equipment during operation, and the foot plates increase the force-bearing area of ​​the bottom of the legs, thereby improving the stability of the equipment when supported.

[0012] Preferably, a pull ring is fixedly installed below the front of the closed door, and a window plate is fixedly installed above the pull ring. The window plate is convenient for the staff to observe the inside of the equipment during operation, and the pull ring is convenient for the staff to operate when the closed door is opened.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting the coordination between the clamping plate, the liquid distribution pipe and the nozzle, the clamping plate can clamp and fix the plastic-coated steel pipe, and the liquid distribution pipe and the nozzle can spray the pickling agent on the surface of the clamped plastic-coated steel pipe, so that the coating on the surface of the plastic-coated steel pipe can be removed by chemical means. The chemical method reduces the harm when removing the coating of the plastic-coated steel pipe, avoids the impact on subsequent use, and increases the safety of the equipment when removing the coating of the plastic-coated steel pipe.

[0015] 2. By setting the cooperation between the cleaning scraper and the grinding wheel, the scraper can scrape the outer wall of the steel pipe after chemical cleaning, thereby avoiding the residue on the outer wall of the steel pipe. At the same time, the grinding wheel can polish and grind the outer wall of the steel pipe after cleaning, which increases the cleanliness and smoothness of the outer wall of the steel pipe, making it easier for the staff to process the steel pipe in the future, avoiding the need for manual polishing to increase the processing procedures and workload of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the front internal structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the fixing frame structure of the utility model;

[0019] Figure 4This is a schematic diagram of the grinding slide rail structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the liquid distribution pipe structure of the utility model.

[0021] In the figure: 1. Leg; 101. Footboard; 2. Cabinet; 3. Closing door; 301. Pull ring; 302. Window panel; 4. Recovery box; 401. Funnel box; 5. Scraping rail; 501. Scraping push rod; 502. Cleaning scraper; 6. Grinding rail; 601. Grinding push rod; 602. Grinding motor; 603. Grinding wheel; 7. Fixed frame; 701. Sliding rod; 8. Driving motor; 801. Threaded rod; 9. Clamping plate; 10. Rotating motor; 1001. Fixed plate; 11. Liquid distribution pipe; 1101. Sprinkler; 1102. Control valve. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention proposes a device for removing coating from the surface of a plastic-coated steel pipe, comprising a cabinet 2, a scraping slide rail 5, and a grinding slide rail 6. A fixing frame 7 is fixedly installed on the upper part of the interior of the cabinet 2, and two sets of slide bars 701 are fixedly installed on the front side of the interior of the fixing frame 7. Two sets of clamping plates 9 are slidably installed on the outer wall of the slide bar 701. A rotating motor 10 is fixedly installed on the lower part of the outer side of the clamping plate 9, and a fixed plate 1001 is fixedly installed on the output end of the rotating motor 10 through the clamping plate 9. The lower part of the interior of the cabinet 2 is fixedly installed. A liquid distributing pipe 11 is fixedly installed, and a plurality of groups of nozzles 1101 are fixedly installed at equal distances on the front of the liquid distributing pipe 11; a scraping push rod 501 is slidably installed on the front of the scraping slide rail 5, and a cleaning scraper 502 is fixedly installed on the output end of the scraping push rod 501; a grinding push rod 601 is slidably installed on the front of the grinding slide rail 6, a grinding motor 602 is fixedly installed on the front of the grinding push rod 601, and a grinding wheel 603 is fixedly installed on the output end of the grinding motor 602; a closing door 3 is movably installed on the front of the cabinet 2;

[0025] A threaded rod 801 is rotatably mounted on the inner side of the fixing frame 7, and a driving motor 8 whose output end is connected to the threaded rod 801 is fixedly mounted on the outer side of the fixing frame 7. Multiple sets of control valves 1102 are fixedly mounted at equal distances on both sides of the liquid distribution pipe 11.

[0026] The working principle of the surface coating removal device of the plastic-coated steel pipe based on Example 1 is as follows: two groups of clamping plates 9 can expand outward and retract inward on the sliding rod 701, so that the plastic-coated steel pipe can be clamped and fixed by the clamping plates 9 and the fixed plate 1001 installed inside, opposite threads are arranged on both sides of the outer wall of the threaded rod 801, and the two sides of the threaded rod 801 are respectively threadedly connected with the two groups of clamping plates 9, so that the clamping plates 9 and the fixed plate 1001 can be expanded outward and retracted inward by the rotation of the threaded rod 801, and the driving motor 8 can drive the threaded rod 801 to rotate. The liquid dispensing pipe 11 is connected to an external chemical agent device, so that the pickling agent or alkaline cleaning agent can be sprayed on the outer wall of the fixed plastic-coated steel pipe in the clamping plate 9 through the liquid dispensing pipe 11 and the nozzle 1101. The staff can replace the chemical agent according to the material of the surface coating of the plastic-coated steel pipe, so that the coating on the outer wall of the plastic-coated steel pipe can be removed by chemical means. The chemical cleaning method avoids the situation of affecting the internal structure of the steel pipe, increases the safety of cleaning the outer wall of the plastic-coated pipe, and the chemical method has a better effect than heating cleaning;

[0027] The rotating motor 10 can drive the fixed disk 1001 and the plastic-coated steel pipe to rotate, so that the nozzle 1101 can evenly spray the chemical agent on the surface of the plastic-coated steel pipe. The control valve 1102 can control the opening and closing of the nozzles 1101 on both sides of the liquid distributing pipe 11, so that the chemical agent can be sprayed on the steel pipe according to the length of the steel pipe at the same time, avoiding that the equipment can only remove the coating of a single length of the plastic-coated steel pipe, reducing the limitation of the equipment, and the scraping push rod 501 can extend the scraper 502 forward by extending, and the scraper 502 can contact the outer wall of the plastic-coated steel pipe by extending forward, so that after the chemical agent is sprayed on the surface of the plastic-coated steel pipe, the scraper 502 can scrape the detached coating on the surface of the plastic-coated steel pipe, avoiding the residue on the surface, and the scraping slide rail 5 can move the scraper 502, so that the scraper 502 can perform a comprehensive scraping treatment on the outer wall of the plastic-coated steel pipe;

[0028] The grinding push rod 601 can extend the grinding wheel 603 and the grinding motor 602, so that the grinding wheel 603 can contact the outer wall of the steel pipe after being scraped by the cleaning scraper 502. The grinding motor 602 drives the grinding wheel 603 to rotate to grind and polish the outer wall of the steel pipe after the coating is scraped off. The cleanliness and smoothness of the outer wall of the steel pipe are increased by polishing the outer wall, which is convenient for the staff to process it later, avoiding the need for manual polishing by personnel, which increases the processing procedures and the workload of personnel. The closing door 3 can close the front of the equipment during operation, thereby avoiding the dust pollution of the air during the polishing of the outer wall of the steel pipe.

[0029] Embodiment 2

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the utility model proposes a device for removing the surface coating of a plastic-coated steel pipe. Compared with the first embodiment, this embodiment also includes: a recovery box 4 is fixedly installed at the bottom of the interior of the cabinet 2, and a funnel box 401 is fixedly installed at the bottom of the recovery box 4, legs 1 are fixedly installed on both sides of the bottom of the cabinet 2, and foot plates 101 are fixedly installed at the bottom of the legs 1, a pull ring 301 is fixedly installed at the bottom of the front of the closing door 3, and a window panel 302 is fixedly installed above the pull ring 301.

[0031] In this embodiment, Figure 2 and Figure 4 As shown, the recycling box 4 can recycle the coating removed by the equipment, and the funnel box 401 can discharge the coating recovered inside the recycling box 4, so that the staff can carry out centralized processing; Figure 1 and Figure 2 , Figure 4 As shown, the leg 1 can support the bottom of the equipment during operation, and the foot plate 101 increases the force-bearing area of ​​the bottom of the leg 1, thereby improving the stability of the equipment during support; Figure 1 As shown, the window plate 302 is convenient for the staff to observe the interior of the equipment when it is in operation, and the pull ring 301 is convenient for the staff to operate when the closed door 3 is opened.

[0032] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A device for removing coating from the surface of a plastic-coated steel pipe, comprising a cabinet (2) and a scraping slide rail (5) and a grinding slide rail (6), characterized in that: A fixing frame (7) is fixedly installed on the upper part of the cabinet (2), and two groups of sliding bars (701) are fixedly installed on the front side of the fixing frame (7), and two groups of clamping plates (9) are slidably installed on the outer wall of the sliding bar (701), and a rotating motor (10) is fixedly installed on the lower part of the outer side of the clamping plate (9), and the output end of the rotating motor (10) passes through the clamping plate (9) and is fixedly installed with a fixing plate (1001), and a liquid distribution pipe (11) is fixedly installed on the lower part of the cabinet (2), and the front of the liquid distribution pipe (11) is equidistant from the outer side of the liquid distribution pipe (11). A plurality of groups of nozzles (1101) are fixedly installed, the front side of the scraping slide rail (5) is slidably installed on the scraping push rod (501), and the output end of the scraping push rod (501) is fixedly installed with a cleaning scraper (502), the front side of the grinding slide rail (6) is slidably installed on the grinding push rod (601), the front side of the grinding push rod (601) is fixedly installed with a grinding motor (602), and the output end of the grinding motor (602) is fixedly installed with a grinding wheel (603), and the front side of the cabinet (2) is movably installed with a closing door (3).

2. The device for removing coating from the surface of a plastic-coated steel pipe according to claim 1, characterized in that: A threaded rod (801) is rotatably mounted on the inner side of the fixing frame (7), and a driving motor (8) whose output end is connected to the threaded rod (801) is fixedly mounted on the outer side of the fixing frame (7).

3. The device for removing coating from the surface of a plastic-coated steel pipe according to claim 1 is characterized in that: A plurality of control valves (1102) are fixedly installed at equal distances on both sides of the liquid distribution pipe (11).

4. The device for removing coating from the surface of a plastic-coated steel pipe according to claim 1, characterized in that: A recovery box (4) is fixedly installed at the bottom of the cabinet (2), and a funnel box (401) is fixedly installed at the bottom of the recovery box (4).

5. The device for removing coating from the surface of a plastic-coated steel pipe according to claim 1 is characterized in that: Support legs (1) are fixedly mounted on both sides of the bottom of the cabinet (2), and foot plates (101) are fixedly mounted on the bottoms of the support legs (1).

6. The device for removing coating from the surface of a plastic-coated steel pipe according to claim 1 is characterized in that: A pull ring (301) is fixedly installed below the front surface of the closed door (3), and a window plate (302) is fixedly installed above the pull ring (301).

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