A polishing device for glass steel sand-encased pipe production

Abstract

This utility model belongs to the field of fiberglass reinforced plastic (FRP) sand-filled pipe production technology, and particularly relates to a grinding device for FRP sand-filled pipe production. The device includes: a housing with a first motor mounted on its top and a support frame fixedly connected to the top; a shell with a connecting plate at its bottom and two symmetrically distributed mounting plates at its bottom; a first moving component located at the bottom of the connecting plate and used to move the shell; a second moving component located inside the shell and used to move the two mounting plates; and a dust-collecting component located at the bottom of the housing and used to collect dust from inside the housing. This device precisely controls the grinding position and spacing through the first and second moving components, while the dust-collecting component ensures a clean working environment, thus improving grinding quality and efficiency and facilitating operation for workers.

Description

Technical Field

[0001] This utility model belongs to the field of fiberglass reinforced plastic (FRP) sand-filled pipe production technology, and in particular relates to a grinding device for the production of FRP sand-filled pipes. Background Technology

[0002] Grinding fiberglass reinforced plastic (FRP) pipes involves using an angle grinder (equipped with coarse, medium, and fine grinding wheels) or hand sandpaper to grind the joints and surfaces at a uniform speed along the pipe's axial direction. First, rough grinding removes burrs and protrusions, then fine grinding smooths the surface, and finally polishing to a smooth finish. Dust removal equipment is used in conjunction to reduce dust. The aim is to improve the sealing of pipe connections, repair surface defects, and create favorable conditions for subsequent anti-corrosion or coating treatments. During operation, it is essential to wear protective equipment such as goggles and masks and ensure proper ventilation.

[0003] For example, Chinese patent CN208629061U discloses a grinding device for producing fiberglass reinforced plastic (FRP) sand-filled pipes. The device includes a base plate, with a horizontal slide rail and a vertical plate fixedly installed at the top. A fixing plate is welded to the top of the side wall of the vertical plate away from the horizontal slide rail. The fixing plate has a circular through hole, and a first screw is rotatably connected to the fixing plate at the circular through hole. A first threaded sleeve is threaded to the outer side of the first screw, and a rotating handle is fixedly installed at the top of the first screw. The top of the base plate has a circular groove, and the bottom end of the first screw is rotatably connected to the base plate at the circular groove. The vertical plate has a strip-shaped through hole, and a guide rod is slidably connected to the vertical plate at the strip-shaped through hole. One end of the guide rod is welded to the first threaded sleeve. Compared to existing devices, this invention can better support and fix pipes of different diameters, and can better grind both their outer and inner diameters, improving work efficiency.

[0004] The above-mentioned patent has the following problems: In actual use, it can only grind the outside of the fiberglass reinforced plastic (FRP) pipe and does not have the function of grinding the inside of the FRP pipe. This means that when the inside of the pipe needs to be ground, the grinding equipment needs to be replaced, which is time-consuming and labor-intensive and not conducive to the use of workers. In view of this, we propose a grinding device for the production of FRP pipe. Utility Model Content

[0005] The purpose of this utility model is to provide a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes, so as to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes, comprising: The box has a first motor installed on its top and a support frame fixedly connected to the top. The first motor is fixedly mounted on the support frame. The output end of the first motor is fixedly connected to a rotating shaft. The bottom of the rotating shaft extends into the interior of the box and a connecting plate is fixedly connected to the bottom of the rotating shaft. The housing has a connecting plate at the bottom, and two symmetrically distributed mounting plates are provided at the bottom of the housing. An electric lifting rod is fixedly installed at the bottom of each of the two mounting plates. A second motor is fixedly installed at the output end of each of the two electric lifting rods, and a grinding roller is fixedly connected to the output end of each of the two second motors. A first movable component is disposed at the bottom of the connecting plate and is used to move the housing. The second moving component is disposed inside the housing and is used to move the two mounting plates. A dust extraction assembly is located at the bottom of the housing and is used to extract dust from inside the housing.

[0007] In this technical solution, the electric slide rail drives the slide table to slide horizontally, further adjusting the housing to be directly above the pipe or to a specific position requiring grinding. The bidirectional screw is manually rotated via the handle, and its two-section reverse spiral structure drives two threaded sleeves to slide synchronously within the through groove, adjusting the spacing of the mounting plate, the second motor at the bottom, and the grinding roller until the grinding roller is in contact with the pipe surface. Finally, the second motor is started to drive the grinding roller to rotate and grind the pipe. At the same time, the vacuum cleaner at the bottom of the housing evenly transmits suction power to the five suction pipes through the diverter block, comprehensively absorbing the debris and dust generated during the grinding process. In this stage, multiple components work together to complete pipe fixing, position adjustment, and grinding dust removal, achieving precise and efficient grinding preparation.

[0008] By starting the first motor, the rotating shaft is driven to rotate, which in turn drives two grinding rollers to move in a circular motion around the shaft. This allows for circumferential grinding of the pipe. The distance between the two threaded sleeves can be flexibly adjusted using the handle, causing the mounting plate to automatically retract or expand the grinding rollers, maintaining close contact with the pipe surface and ensuring uniform grinding. The dust collection component operates continuously, and the vacuum cleaner uses a negative pressure system formed by the diverter block and the suction pipe to collect dust from the chamber, preventing dust from spreading and polluting the working environment. In this two-stage workflow, the moving component precisely controls the grinding position and spacing, while the dust collection component ensures a clean working environment, together improving grinding quality and efficiency.

[0009] In the above technical solution, furthermore, support columns are fixedly connected to the four corners of the bottom of the box, and a sealing door is hinged to one side of the box.

[0010] In this technical solution, the box can be supported by the set support columns, and the box can be closed by the set sealing door.

[0011] In the above technical solution, furthermore, electric push rods are fixedly installed on both sides of the box, and clamps are fixedly connected to the output ends of the two electric push rods.

[0012] In this technical solution, by activating the electric push rod, the output end of the electric push rod drives the clamping plate to move, at which point the clamping plate can clamp and fix the pipe.

[0013] In the above technical solution, the first moving component further includes an electric slide rail, a slide table is slidably mounted on the outside of the electric slide rail, and the housing is fixedly mounted on the bottom of the slide table.

[0014] In this technical solution, the slide table and the housing can be moved by activating the electric slide rail.

[0015] In the above technical solution, the second moving component further includes a bidirectional screw, which is rotatably mounted on both sides of the inner wall of the housing. The two helical directions of the bidirectional screw are opposite. The external thread of the bidirectional screw is connected to two symmetrically distributed threaded sleeves. A through groove is provided at the bottom of the housing. Both threaded sleeves are slidably mounted inside the through groove. The two threaded sleeves are fixedly connected to two mounting plates respectively.

[0016] In this technical solution, the rotation of the bidirectional screw drives two threaded sleeves to slide synchronously in the through groove through its two-stage reverse spiral structure, thereby driving the mounting plate and the second motor at the bottom and the grinding roller to adjust the spacing.

[0017] In the above technical solution, a handle is rotatably mounted on one side of the housing, and the handle is fixedly connected to the bidirectional screw.

[0018] In this technical solution, the bidirectional screw can be rotated by rotating the handle.

[0019] In the above technical solution, the dust collection component further includes a vacuum cleaner, the suction end of the vacuum cleaner is connected to a diverter block, the five output ends of the diverter block are all connected to suction pipes, and the other ends of the five suction pipes are all connected to the bottom of the housing.

[0020] In this technical solution, the vacuum cleaner at the bottom of the box distributes the suction power evenly to the five suction pipes through the diverter block, so as to fully absorb the debris and dust generated during the polishing process.

[0021] The beneficial effects of this utility model are: 1. The electric slide rail drives the slide table to slide horizontally, further adjusting the housing to be directly above the pipe or the specific position to be polished; the bidirectional screw is manually rotated by the handle, and its two-stage reverse spiral structure drives two threaded sleeves to slide synchronously in the through groove, driving the mounting plate and the second motor at the bottom and the polishing roller to adjust the spacing until the polishing roller is in contact with the pipe surface; finally, the second motor is started to drive the polishing roller to rotate and polish the pipe. At the same time, the vacuum cleaner at the bottom of the box evenly transmits the suction power to the five suction pipes through the diverter block, fully absorbing the debris and dust generated during the polishing process. In this stage, the pipe fixing, position adjustment and polishing dust removal are completed through the cooperation of multiple components, achieving precise and efficient polishing preparation.

[0022] 2. By starting the first motor, the rotating shaft is driven to rotate, which in turn drives the two grinding rollers to move in a circular motion around the shaft. This allows for circumferential grinding of the pipe. The distance between the two threaded sleeves can be flexibly adjusted using the handle, allowing the mounting plate to automatically retract or expand the grinding rollers, maintaining close contact with the pipe surface and ensuring uniform grinding. The dust collection component operates continuously, using a negative pressure system formed by the diverter and suction pipe to collect dust from the casing, preventing dust from spreading and polluting the working environment. In this two-stage workflow, the moving component precisely controls the grinding position and spacing, while the dust collection component ensures a clean working environment, together improving grinding quality and efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a partial cross-sectional view of the overall structure of this utility model; Figure 4 This is a schematic diagram of the grinding component structure in this utility model; Figure 5 This is a cross-sectional view of the shell structure in this utility model.

[0024] The markings in the diagram are as follows: 1. Housing; 2. Support column; 3. Sealed door; 4. Electric push rod; 5. Clamping plate; 6. Support frame; 7. First motor; 8. Rotating shaft; 9. Connecting plate; 10. Electric slide rail; 11. Slide table; 12. Housing; 13. Bidirectional screw; 14. Handle; 15. Threaded sleeve; 16. Through groove; 17. Mounting plate; 18. Second motor; 19. Grinding roller; 20. Vacuum cleaner; 21. Diverter block; 22. Vacuum hose; 23. Electric lifting rod. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 - Figure 5This application will be described in further detail.

[0026] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0027] Example 1: This example provides a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes, comprising: Box 1, a first motor 7 is provided on the top of box 1, a support frame 6 is fixedly connected to the top of box 1, the first motor 7 is fixedly installed on the support frame 6, a rotating shaft 8 is fixedly connected to the output end of the first motor 7, the bottom of the rotating shaft 8 extends into the interior of box 1, and a connecting plate 9 is fixedly connected to the bottom of the rotating shaft 8. The housing 12 has a bottom with a connecting plate 9. The bottom of the housing 12 has two symmetrically distributed mounting plates 17. An electric lifting rod 23 is fixedly mounted on the bottom of each of the two mounting plates 17. A second motor 18 is fixedly mounted on the output end of each of the two electric lifting rods 23. A grinding roller 19 is fixedly connected to the output end of each of the two second motors 18. The first moving component is disposed at the bottom of the connecting plate 9 and is used to move the housing 12. The second moving component is disposed inside the housing 12 and is used to move the two mounting plates 17. A dust extraction component is located at the bottom of the housing 1 and is used to extract dust from inside the housing 1.

[0028] Among them, the electric slide rail 10 drives the slide table 11 to slide horizontally, thereby adjusting the housing 12 to be directly above the pipe or to a specific position that needs to be polished; the bidirectional screw 13 is manually rotated by the handle 14, and its two-section reverse spiral structure drives the two threaded sleeves 15 to slide synchronously in the through groove 16, thereby adjusting the spacing of the mounting plate 17 and the second motor 18 and polishing roller 19 at the bottom until the polishing roller 19 fits against the surface of the pipe; finally, the second motor 18 is started to drive the polishing roller 19 to rotate and polish the pipe. At the same time, the vacuum cleaner 20 at the bottom of the housing 1 evenly transmits the suction power to the five vacuum pipes 22 through the diverter block 21, which fully absorbs the debris and dust generated during the polishing process. In this stage, the pipe fixing, position adjustment and polishing dust removal are completed through the cooperation of multiple components, achieving precise and efficient polishing preparation.

[0029] By starting the first motor 7, the rotating shaft 8 is driven to rotate, which in turn drives the two grinding rollers 19 to move circumferentially around the rotating shaft 8. At this time, the pipe can be ground circumferentially. The distance between the two threaded sleeves 15 can be flexibly adjusted by the handle 14, so that the mounting plate 17 drives the grinding rollers 19 to adaptively contract or expand, always maintaining close contact with the pipe surface and ensuring uniform grinding. The dust collection component operates continuously. The vacuum cleaner 20 uses the negative pressure system formed by the diverter block 21 and the suction pipe 22 to collect the dust in the housing 1, preventing dust from spreading and polluting the working environment. In the two-stage workflow, the moving component precisely controls the grinding position and spacing, and the dust collection component ensures a clean working environment, together improving the grinding quality and efficiency.

[0030] Example 2: This example provides a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes. In addition to the technical solutions of the above examples, it also has the following technical features: support columns 2 are fixedly connected to the four corners of the bottom of the box 1, and a sealing door 3 is hinged to one side of the box 1.

[0031] The box 1 can be supported by the support column 2 and closed by the sealing door 3.

[0032] Example 3: This example provides a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes. In addition to the technical solutions of the above examples, it also has the following technical features: electric push rods 4 are fixedly installed on both sides of the housing 1, and clamping plates 5 are fixedly connected to the output ends of the two electric push rods 4.

[0033] In this process, by activating the electric push rod 4, the output end of the electric push rod 4 drives the clamping plate 5 to move, and the clamping plate 5 can then clamp and fix the pipe.

[0034] Example 4: This example provides a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes. In addition to the technical solutions of the above examples, it also has the following technical features: the first moving component includes an electric slide rail 10, a slide table 11 is slidably mounted on the outside of the electric slide rail 10, and a housing 12 is fixedly mounted on the bottom of the slide table 11.

[0035] The slide table 11 and the housing 12 can be moved by activating the electric slide rail 10.

[0036] Example 5: This example provides a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes. In addition to the technical solutions of the above examples, it also has the following technical features: the second moving component includes a bidirectional screw 13, which is rotatably installed on both sides of the inner wall of the housing 12. The two helical directions of the two sections of the bidirectional screw 13 are opposite. The external thread of the bidirectional screw 13 is connected to two symmetrically distributed threaded sleeves 15. A through groove 16 is provided at the bottom of the housing 12. The two threaded sleeves 15 are slidably installed inside the through groove 16. The two threaded sleeves 15 are fixedly connected to two mounting plates 17 respectively.

[0037] The rotation of the bidirectional screw 13 drives the two threaded sleeves 15 to slide synchronously in the through groove 16 through its two reverse spiral structures, thereby driving the mounting plate 17 and the second motor 18 and grinding roller 19 at the bottom to adjust the spacing.

[0038] Example 6: This example provides a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes. In addition to the technical solutions of the above examples, it also has the following technical features: a handle 14 is rotatably mounted on one side of the housing 12, and the handle 14 is fixedly connected to the bidirectional screw 13.

[0039] The bidirectional screw 13 can be rotated by rotating the handle 14.

[0040] Example 7: This example provides a grinding device for the production of fiberglass reinforced plastic (FRP) sand-filled pipes. In addition to the technical solutions of the above examples, it also has the following technical features: the dust collection component includes a dust collector 20, the suction end of the dust collector 20 is connected to a diverter block 21, the five output ends of the diverter block 21 are all connected to dust collection pipes 22, and the other ends of the five dust collection pipes 22 are all connected to the bottom of the housing 1.

[0041] Among them, the vacuum cleaner 20 at the bottom of the box 1 transmits the suction power evenly to the five suction pipes 22 through the diverter block 21, so as to fully absorb the debris and dust generated during the polishing process.

[0042] Working principle: First, the clamping plates 5 are pushed by the electric push rods 4 on both sides of the housing 1 to fix the fiberglass reinforced plastic (FRP) pipe to be ground inside the housing 1; then the sealing door 3 is closed; the electric slide rail 10 drives the slide table 11 to slide horizontally, which in turn moves the housing 12 to be further adjusted to be directly above the pipe or to the specific position to be ground; the bidirectional screw 13 is manually rotated by the handle 14, and its two-stage reverse spiral structure drives the two threaded sleeves 15 to slide synchronously in the through groove 16, which in turn drives the mounting plate 17 and the second motor 18 at the bottom, as well as the grinding roller. 19. Adjust the spacing until the grinding roller 19 fits against the pipe surface; by starting the electric lifting rod 23, the height of the grinding roller 19 can be adjusted. Finally, start the second motor 18 to drive the grinding roller 19 to rotate and grind the pipe. At the same time, the vacuum cleaner 20 at the bottom of the box 1 evenly transmits the suction power to the five vacuum pipes 22 through the diverter block 21 to fully absorb the debris and dust generated during the grinding process. In this stage, the pipe fixing, position adjustment and grinding dust removal are completed through the collaboration of multiple components, achieving precise and efficient grinding preparation.

[0043] By activating the first motor 7, the output of the first motor 7 drives the rotating shaft 8 to rotate, which in turn drives the two grinding rollers 19 to move circumferentially around the rotating shaft 8. At this time, the pipe can be ground circumferentially. The distance between the two threaded sleeves 15 can be flexibly adjusted by the handle 14, so that the mounting plate 17 drives the grinding rollers 19 to adaptively contract or expand, always maintaining close contact with the pipe surface and ensuring uniform grinding. The dust collection component operates continuously. The vacuum cleaner 20 uses the negative pressure system formed by the diverter block 21 and the suction pipe 22 to collect the dust in the housing 1, preventing dust from spreading and polluting the working environment. In the two-stage workflow, the moving component precisely controls the grinding position and spacing, and the dust collection component ensures a clean working environment, together improving the grinding quality and efficiency.

[0044] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A grinding device for producing fiberglass reinforced plastic (FRP) sand-filled pipes, characterized in that, include: Box (1), the top of the box (1) is provided with a first motor (7), the top of the box (1) is fixedly connected with a support frame (6), the first motor (7) is fixedly installed on the support frame (6), the output end of the first motor (7) is fixedly connected with a rotating shaft (8), the bottom of the rotating shaft (8) extends into the interior of the box (1), and the bottom of the rotating shaft (8) is fixedly connected with a connecting plate (9). The housing (12) has a bottom of a connecting plate (9), and the bottom of the housing (12) has two symmetrically distributed mounting plates (17). An electric lifting rod (23) is fixedly installed on the bottom of each of the two mounting plates (17). A second motor (18) is fixedly installed at the output end of each of the two electric lifting rods (23). A grinding roller (19) is fixedly connected to the output end of each of the two second motors (18). The first moving component is disposed at the bottom of the connecting plate (9) and is used to move the housing (12); The second moving component is disposed inside the housing (12) and is used to move the two mounting plates (17); A dust collection component is disposed at the bottom of the housing (1) and is used to collect dust from inside the housing (1).

2. The grinding device for producing fiberglass reinforced plastic (FRP) sand-filled pipes according to claim 1, characterized in that, The box (1) has support columns (2) fixedly connected at the four corners of its bottom, and a sealing door (3) is hinged to one side of the box (1).

3. The grinding device for producing fiberglass reinforced plastic (FRP) sand-filled pipes according to claim 1, characterized in that, Electric push rods (4) are fixedly installed on both sides of the box (1), and clamps (5) are fixedly connected to the output ends of the two electric push rods (4).

4. A grinding device for producing fiberglass reinforced plastic (FRP) sand-filled pipes according to claim 1, characterized in that, The first moving component includes an electric slide rail (10), on which a slide table (11) is slidably mounted, and the housing (12) is fixedly mounted on the bottom of the slide table (11).

5. A grinding device for producing fiberglass reinforced plastic (FRP) sand-filled pipes according to claim 1, characterized in that, The second moving component includes a bidirectional screw (13), which is rotatably mounted on both sides of the inner wall of the housing (12). The two helical directions of the bidirectional screw (13) are opposite. The external thread of the bidirectional screw (13) is connected to two symmetrically distributed threaded sleeves (15). A through groove (16) is provided at the bottom of the housing (12). The two threaded sleeves (15) are slidably mounted inside the through groove (16). The two threaded sleeves (15) are fixedly connected to two mounting plates (17) respectively.

6. A grinding device for producing fiberglass reinforced plastic (FRP) sand-filled pipes according to claim 5, characterized in that, A handle (14) is rotatably mounted on one side of the housing (12), and the handle (14) is fixedly connected to the bidirectional screw (13).

7. A grinding device for producing fiberglass reinforced plastic (FRP) sand-filled pipes according to claim 1, characterized in that, The vacuuming assembly includes a vacuum cleaner (20), the suction end of which is connected to a diverter block (21), and the five output ends of the diverter block (21) are all connected to vacuum pipes (22), the other ends of the five vacuum pipes (22) are all connected to the bottom of the housing (1).

Images