Multifunctional polishing equipment for PVC pipe

Abstract

The utility model relates to a PVC pipe multifunctional polishing equipment relates to polishing device technical field, including fixed end plate, the hinged rod of installation in fixed end plate inside and outside polishing assembly and setting hinged rod on walking structure, two fixed end plate opposite place, two fixed end plate inside corresponding hinged rod are hinged with each other, the walking wheel of walking structure is contacted with the inner surface or the outer surface of PVC pipe, the polishing wheel of polishing assembly is contacted with the inner surface or the outer surface of PVC pipe, through polishing assembly to the inside of PVC pipe is polished, or polishing assembly carries out polishing to the outside of PVC pipe, realized the same kind polishing structure to realize pipeline inside or outside polishing, improved the practicability of equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polishing device, in particular to a PVC pipe multifunctional polishing equipment. BACKGROUND

[0002] In the processing of PVC (polyvinyl chloride) pipe, the processing technology often causes burrs, flash or uneven section inside and outside the PVC (polyvinyl chloride) pipe, which affects the subsequent use.

[0003] For example, in the chemical industry, petroleum industry and other industries, large diameter PVC pipes are used to transport a large amount of corrosive liquid or high purity chemical raw materials. In order to ensure that the quality of the fluid is not affected by the impurities in the pipe wall, and to reduce the resistance in the fluid conveying process, the inner wall needs to be polished to obtain a smooth surface, reduce the friction coefficient and improve the conveying efficiency. For example, small diameter PVC pipes are often used for line protection and insulation inside electronic equipment. Polishing the outer wall can make the appearance more neat and beautiful, and avoid the problem of static adsorption of dust caused by rough surface, and keep the inside of electronic equipment clean. And some small factories occasionally need to polish the outer wall of PVC pipe and polish the inner wall of PVC pipe. If manual polishing is used, it is time-consuming and laborious, and the cost is high. If two polishing equipment are purchased to realize the polishing of the inner pipe and the outer pipe, the cost of the equipment is high.

[0004] In order to improve the polishing quality and reduce the polishing cost, a multifunctional polishing equipment for polishing the inner wall and the outer wall of the PVC pipe is needed. SUMMARY

[0005] In view of the above problems, the present application provides a PVC pipe multifunctional polishing equipment, characterized in that it comprises a polishing structure, and the polishing structure is installed on the inner side or the outer side of the PVC pipe.

[0006] The polishing structure comprises a fixed end plate, a hinge rod installed on the inner side of the fixed end plate and a rotating mechanism movably installed on the outer side of the fixed end plate, a polishing assembly arranged on the outer side of the rotating mechanism, a walking structure and a driving structure arranged on the hinge rod;

[0007] The two fixed end plates are placed opposite to each other, and the hinge rods corresponding to the inner sides of the two fixed end plates are hinged to each other; the walking wheels of the walking structure are in contact with the inner surface or the outer surface of the PVC pipe; the driving structure is in transmission connection with the rotating mechanism; the polishing wheels of the polishing assembly are in contact with the inner surface or the outer surface of the PVC pipe;

[0008] The rotating mechanism comprises a plurality of first gear blocks and second gear blocks, and the first gear blocks are spliced into a first gear ring in transmission connection with the driving structure.

[0009] Or the second gear block is installed between the adjacent first gear blocks, and the first gear blocks and the second gear blocks are spliced into a second gear ring which is in transmission connection with the driving structure.

[0010] Further, the first gear block comprises a first tooth block body, first teeth arranged outside the first tooth block body, a sliding groove arranged at one end of the first tooth block body away from the fixed end plate, and a round hole arranged on the sliding groove; the inner side of the first tooth block body is provided with second teeth, and adjacent second teeth are spliced into a first gear ring.

[0011] Further, the second gear block comprises a second tooth block body, a clamping block sliding in a groove of the second tooth block body, a connecting plate fixed at one end of the second tooth block body away from the fixed end plate, a limiting column fixed on the connecting plate, and third teeth arranged outside the second tooth block body, the connecting plate is slidingly installed in the sliding groove, and the limiting column is slidingly installed in the round hole; adjacent first teeth and third teeth are spliced into a second gear ring.

[0012] Further, the polishing assembly comprises a fixed plate, a polishing wheel rotating on the fixed plate, and a third spring connecting the fixed plate and the first gear block, one end of the fixed plate away from the polishing wheel is rotatably installed on the first gear block.

[0013] Further, the walking structure comprises a second driving motor, a sliding sleeve, a first spring installed in the sliding sleeve, a walking wheel rotatably installed at one end of a sliding rod of the sliding sleeve, and a third driving motor for driving the walking wheel, the second driving motor is fixedly installed on the side surface of the articulated rod, and the motor shaft is fixedly connected with the sliding sleeve; the third driving motor is fixedly connected with the sliding rod of the sliding sleeve.

[0014] Further, the polishing device further comprises a base structure and a clamping seat installed on the base structure, and the clamping seat is used for clamping the PVC pipe.

[0015] Further, the base structure comprises a first base and a second base which are rotatably connected with each other, a first sliding rail arranged on the first base, and a second sliding rail arranged on the second base; the clamping seat is slidingly installed on the first sliding rail and the second sliding rail.

[0016] Further, the clamping seat comprises a sliding seat, a first fixed circular plate arranged on the sliding seat, a limiting support, clamping rods, a first clamping plate, a rotating plate rotatably arranged in the limiting support, a limiting groove arranged on the rotating plate, and a driving device for driving the rotating plate, the sliding seat is slidingly arranged on the first sliding rail or the second sliding rail, the inner side of the sliding seat is provided with the first fixed circular plate, the clamping rods are slidingly arranged in the grooves of the limiting support, one end of each clamping rod is slidingly connected with the limiting groove, and the other end of each clamping rod is fixedly connected with the first clamping plate; and the driving device is arranged on the outer side of the first fixed circular plate and is in transmission connection with the rotating plate.

[0017] Further, the driving device comprises a first driving motor fixedly arranged on the outer side of the first fixed circular plate, a circular plate rotatably arranged on the first fixed circular plate, and an inner tooth ring fixedly arranged on the circular plate, the inner tooth ring is in meshing connection with a gear on the motor shaft of the first driving motor, and the circular plate is fixedly connected with the rotating plate through a shaft.

[0018] Further, the clamping seat further comprises a second fixed circular plate fixedly arranged in the middle of the limiting support, a first electric cylinder fixedly arranged on one end of the second fixed circular plate close to the sliding seat, a second clamping plate, a connecting rod, and a sliding rod slidingly arranged on the side of the second fixed circular plate away from the sliding seat, the outer side of the sliding rod is rotatably connected with the connecting rod, the inner side of the connecting rod away from the sliding rod is rotatably connected with the second clamping plate, and the piston rod of the first electric cylinder is fixedly connected with the sliding rod.

[0019] Due to the adoption of the technical scheme, the polishing structure comprises the hinged rod, the walking structure, the polishing assembly and the fixed end plate, the polishing structure has two working states, one is to place the polishing structure in the interior of the PVC pipe, the walking structure is in contact with the interior of the PVC pipe, and then the polishing structure moves, and the polishing assembly polishes the interior of the PVC pipe; the other is to install the polishing structure on the outer side of the PVC pipe, that is, the PVC pipe passes through the hole in the middle of the polishing structure, the walking structure is in contact with the outer side of the PVC pipe, and then the polishing structure moves, and the polishing assembly polishes the exterior of the PVC pipe. The same polishing structure is used to polish the interior or the exterior of the pipeline, and the practicability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic view of the application for clamping the PVC pipe and polishing the interior of the PVC pipe.

[0021] Figure 2 It is a schematic view of the application for clamping the PVC pipe and polishing the exterior of the PVC pipe.

[0022] Figure 3 It is a first angle and a partially enlarged structural schematic view of the clamping seat of the application.

[0023] Figure 4 The second angle and the partially enlarged structural schematic view of the clamping seat of the present application.

[0024] Figure 5 The first angle of the polishing structure for polishing the outside of the PVC pipe of the present application.

[0025] Figure 6 The second angle and the partially enlarged structural schematic view of the polishing structure for polishing the outside of the PVC pipe of the present application.

[0026] Figure 7 The structural schematic view of the polishing structure for polishing the inside of the PVC pipe of the present application.

[0027] Figure 8 The first angle of the connection between the first gear block and the polishing assembly of the present application.

[0028] Figure 9 The second angle of the connection between the first gear block and the polishing assembly of the present application.

[0029] Figure 10 The partially structural schematic view of the connection between the first gear block and the second gear block of the present application.

[0030] Figure 11 The schematic view of the control system of the present application.

[0031] The drawing reference numeral: 10, base structure; 101, first base; 102, first sliding rail; 103, second base; 104, second sliding rail;

[0032] 20, clamping seat; 201, sliding seat; 202, first fixed circular plate; 203, limiting support; 204, clamping rod; 205, first clamping plate; 206, rotating plate; 207, limiting groove; 208, first driving motor; 209, inner gear ring; 221, second fixed circular plate; 222, first electric cylinder; 223, second clamping plate; 224, connecting rod; 225, sliding rod;

[0033] 30, polishing structure; 31, hinged rod; 311, second electric cylinder; 32, walking structure; 321, second driving motor; 322, sliding sleeve; 323, first spring; 324, walking wheel; 325, third driving motor; 33, rotating mechanism; 331, first gear block; 3311, first tooth block body; 3312, first tooth; 3313, second tooth; 3314, sliding groove; 3315, limiting sliding groove; 3316, round hole; 332, second gear block; 3321, second tooth block body; 3322, third tooth; 3323, second spring; 3324, clamping block; 3325, limiting column; 3326, connecting plate; 34, polishing assembly; 341, fixed plate; 342, polishing wheel; 343, third spring; 35, driving structure; 351, servo motor; 352, driving gear; 36, fixed end plate;

[0034] 40, PVC pipe. DETAILED DESCRIPTION

[0035] The technical solutions of the present application will be further described in detail below with examples and in conjunction with the drawings. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific examples disclosed below.

[0036] In the description of the present application, it should be noted that the terms "upper", "lower", "in", "out", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0037] Embodiment:

[0038] Reference Figure 5A multi-functional polishing device for PVC pipes includes a polishing structure 30, which is installed on the inner or outer side of a PVC pipe 40. The polishing structure 30 includes hinge rods 31, a traveling structure 32, a polishing assembly 34, and fixed end plates 36. Two fixed end plates 36 are placed opposite each other, and hinge rods 31 are slidably installed on the inner sides of both fixed end plates 36, with corresponding hinge rods 31 hinged to each other. The traveling structure 32 is installed on the hinge rods 31. The traveling wheels 324 of the traveling structure 32 contact the inner or outer surface of the PVC pipe 40. The polishing assembly 34 is installed on the outer side of the fixed end plates 36, and the polishing wheels 342 of the polishing assembly 34 contact the inner or outer surface of the PVC pipe 40. A second electric cylinder 311 is provided on the side of the hinge rod 31, and corresponding second electric cylinders 311 are hinged to each other. The extension of the second electric cylinders 311 causes the three hinge rods 31 to move outward.

[0039] The present invention has two working states. In one state, the polishing structure 30 is placed inside the PVC pipe 40, and the walking structure 32 contacts the inside of the PVC pipe 40, thereby driving the polishing structure 30 to move. The polishing component 34 polishes the inside of the PVC pipe 40.

[0040] Another method is to install the polishing structure 30 on the outside of the PVC pipe 40, that is, the PVC pipe 40 passes through the hole in the middle of the polishing structure 30, the traveling structure 32 contacts the outside of the PVC pipe 40, thereby driving the polishing structure 30 to move, and the polishing component 34 polishes the outside of the PVC pipe 40.

[0041] refer to Figure 6 The polishing structure 30 also includes a rotating mechanism 33 and a driving structure 35. The rotating mechanism 33 is movably mounted on the outside of the fixed end plate 36, and a polishing assembly 34 is mounted on the outside of the rotating mechanism 33. The driving structure 35 is fixedly mounted on the hinge rod 31 and is connected to the rotating mechanism 33 in a transmission manner. The rotating mechanism 33 is driven by the driving structure 35, which in turn drives the polishing assembly 34 to rotate, thereby completing the polishing of the inside or outside of the PVC pipe 40.

[0042] Furthermore, the rotating mechanism 33 includes an equal number of first gear blocks 331 and second gear blocks 332. The first gear blocks 331 are assembled to form a first gear ring that is connected to the drive structure 35 for transmission. Specifically, the present invention is provided with three first gear blocks 331 and three second gear blocks 332. The three first gear blocks 331 are spliced ​​together to form a first gear ring, which meshes with the drive gear 352 of the drive structure 35.

[0043] Further, refer to Figure 6, second gear blocks 332 are mounted between adjacent first gear blocks 331, and the first gear blocks 331 and the second gear blocks 332 are spliced into a second gear ring which is in transmission connection with the driving structure 35. Specifically, the application is provided with three first gear blocks 331 and three second gear blocks 332, and the second gear ring is formed by splicing the three first gear blocks 331 and the three second gear blocks 332, and the second gear ring is in meshing connection with the driving gear 352 of the driving structure 35.

[0044] With reference to Figure 8 , the first gear block 331 comprises a first tooth block body 3311, the outer side of the first tooth block body 3311 is provided with first teeth 3312, the first tooth block body 3311 is provided with a sliding groove 3314 at one end away from the fixed end plate 36, and a round hole 3316 is arranged on the sliding groove 3314 (see Figure 9 ); the inner side of the first tooth block body 3311 is provided with second teeth 3313, and adjacent second teeth 3313 are spliced into a first gear ring. Specifically, the second teeth 3313 of the three first gear blocks 331 are spliced into a first gear ring, and a rod at the end of the hinged rod 31 is slidingly installed in the limiting sliding groove 3315 close to the second teeth 3313 (see Figure 9 ), and the rod at the end of the hinged rod 31 can slide in the limiting sliding groove 3315 but cannot be separated from the limiting sliding groove 3315.

[0045] With reference to Figure 10 , the second gear block 332 comprises a second tooth block body 3321, the outer side of the second tooth block body 3321 is provided with third teeth 3322, a clamping block 3324 is slidingly installed in a groove on the second tooth block body 3321, and a second spring 3323 is arranged in the groove, the second tooth block body 3321 is provided with a connecting plate 3326 at one end away from the fixed end plate 36, the connecting plate 3326 is slidingly installed in the sliding groove 3314, the connecting plate 3326 is provided with a limiting column 3325, and the limiting column 3325 is slidingly installed in the round hole 3316; adjacent first teeth 3312 and third teeth 3322 are spliced into a second gear ring (at this time, a rod at the end of the hinged rod 31 is slidingly installed in the limiting sliding groove 3315 away from the second teeth 3313, as shown in Figure 10 , the limiting sliding groove 3315 away from the second teeth 3313 and the limiting sliding groove on the second tooth block body 3321 are spliced into a circular groove).

[0046] Specifically, the connecting plate 3326 is slidingly installed in the sliding groove 3314, is inserted into the circular hole 3316 through the limiting column 3325, and is clamped on the side of the first tooth block body 3311 away from the sliding groove 3314 through the clamping block 3324, thereby achieving the clamping connection of the second tooth block body 3321 and the first tooth block body 3311; when the second tooth block body 3321 needs to be removed, the clamping block 3324 is pushed to overcome the elastic force of the second spring 3323 and move away from the first tooth block 331, so that the clamping block 3324 is not clamped on the second tooth block 332, and then the second tooth block 332 is manually removed, and then the first tooth block 331 is moved towards the center of the fixed end plate 36, so that the second teeth 3313 of the three first tooth blocks 331 are spliced into a first tooth ring, and then the rod at the end of the hinged rod 31 is slidingly installed in the limiting sliding groove 3315 close to the second teeth 3313 (at this time, the limiting sliding groove 3315 close to the second teeth 3313 is spliced into a circular recess).

[0047] Referring to Figure 6 , the polishing assembly 34 comprises a fixed plate 341, a polishing wheel 342, and a third spring 343. One end of the fixed plate 341 is rotatably installed on the first tooth block 331, and the other end of the fixed plate 341 is provided with the polishing wheel 342 (the polishing wheel 342 can be provided with a driving motor to drive the polishing wheel 342 to rotate, or the polishing wheel 342 is rotatably installed on the fixed plate 341 to drive the polishing wheel 342 to rotate as a whole through the first tooth ring or the second tooth ring for polishing), and the fixed plate 341 is connected with the first tooth block 331 through the third spring 343. Specifically, the fixed plate 341 is pulled by the third spring 343, so that the polishing wheel 342 contacts the outer side of the PVC pipe 40 (as shown in Figure 6 ) or the inner side of the PVC pipe 40 (as shown in Figure 7 ).

[0048] Referring to Figure 6 , the walking structure 32 comprises a second driving motor 321, a sliding sleeve 322, a first spring 323 installed in the sliding sleeve 322, a walking wheel 324, and a third driving motor 325. The second driving motor 321 is fixedly installed on the side of the hinged rod 31, and the motor shaft thereof is fixedly connected with the sliding sleeve 322. The sliding rod end of the sliding sleeve 322 is rotatably installed with the walking wheel 324, and the third driving motor 325 is fixedly connected with the sliding rod of the sliding sleeve 322 and is in transmission connection with the walking wheel 324. The first spring 323 is arranged in the sliding sleeve 322 and is used to drive the sliding rod of the sliding sleeve 322 to move outward. Specifically, the walking wheel 324 is driven by the first spring 323 to contact the outer side of the PVC pipe 40 (as shown in Figure 6 ) or the inner side of the PVC pipe 40 (as shown inFigure 7 ), all through the third driving motor 325 to drive the walking wheel 324 to move the polishing structure 30, through the second driving motor 321 to drive the walking wheel 324 to switch the contact with the outer side of the PVC pipe 40 (such as Figure 6 ) or the inner side of the PVC pipe 40 (such as Figure 7 ).

[0049] Referring to Figure 2 , the polishing device further comprises a base structure 10, the base structure 10 is provided with a clamping seat 20, the clamping seat 20 is used for clamping the PVC pipe 40; the base structure 10 comprises a first base 101 and a second base 103, the second base 103 is rotatably installed on the first base 101; the first base 101 is provided with a first sliding rail 102, and the second base 103 is provided with a second sliding rail 104; the clamping seat 20 is slidably installed on the first sliding rail 102 and the second sliding rail 104. Specifically, by rotating the second base 103 relative to the first base 101, the PVC pipe 40 with an included angle can be clamped, and the polishing of the PVC pipe 40 is realized.

[0050] Referring to Figure 3 and Figure 4 , the clamping seat 20 comprises a sliding seat 201, a first fixed circular plate 202 provided on the sliding seat 201, a limiting support 203, a clamping rod 204, a first clamping plate 205, a rotating plate 206 rotatably installed on the inner side of the limiting support 203, a limiting groove 207 provided on the rotating plate 206, and a driving device for driving the rotating plate 206, the sliding seat 201 is slidably installed on the first sliding rail 102 or the second sliding rail 104, the inner side of the sliding seat 201 is provided with the first fixed circular plate 202, and the clamping rod 204 is slidably installed in the groove of the limiting support 203; one end of the clamping rod 204 is slidably connected with the limiting groove 207 (the limiting groove 207 is arc-shaped, referring to Figure 3 ), and the other end is fixedly connected with the first clamping plate 205; the driving device is provided on the outer side of the first fixed circular plate 202, and the driving device is in transmission connection with the rotating plate 206. The driving device comprises a first driving motor 208 fixedly installed on the outer side of the first fixed circular plate 202, a circular plate rotatably installed on the first fixed circular plate 202, and an inner tooth ring 209 fixedly installed on the circular plate, the inner tooth ring 209 is in meshing connection with the gear on the motor shaft of the first driving motor 208, and the circular plate is fixedly connected with the rotating plate 206 through a shaft.

[0051] Specifically, the first drive motor 208 drives the gear on the motor shaft of the first drive motor 208, and then drives the inner tooth ring 209 to rotate. The inner tooth ring 209 is fixedly connected to the circular plate rotating on the first fixed circular plate 202. The circular plate on the first fixed circular plate 202 is fixedly connected to the rotating plate 206 through a shaft, thereby driving the rotating plate 206 to rotate. The rotating plate 206 drives the clamping rod 204 in the limiting groove 207 to move to the middle, thereby clamping the two ends of the PVC pipe 40 (as shown in Figure 1 ).

[0052] Referring to Figure 3 , the clamping seat 20 further comprises a second fixed circular plate 221, a first electric cylinder 222, a second clamping plate 223, a connecting rod 224, and a sliding rod 225. The second fixed circular plate 221 is fixedly installed in the middle of the limiting support 203, and the sliding rod 225 is slidingly installed on the side of the second fixed circular plate 221 away from the sliding seat 201. The connecting rod 224 is rotatably connected to the outside of the sliding rod 225. The end of the connecting rod 224 away from the sliding rod 225 is rotatably connected to the inside of the second clamping plate 223. The first electric cylinder 222 is arranged at the end of the second fixed circular plate 221 close to the sliding seat 201. The piston rod of the first electric cylinder 222 is fixedly connected to the sliding rod 225. Specifically, the first electric cylinder 222 is retracted, thereby driving the sliding rod 225 to move towards the sliding seat 201, and then driving the second clamping plate 223 to move away from the sliding rod 225, and then making the second clamping plate 223 abut against the inside of the outside of the two ends of the PVC pipe 40, thereby clamping the PVC pipe 40 (as shown in Figure 2 ).

[0053] The embodiment also includes a control system, as shown in Figure 11 , the control system comprises a main controller, a man-machine interaction display screen, an information transmission module, a storage module, and a power module. The main controller is electrically connected to the man-machine interaction display screen, the information transmission module, the storage module, the power module, the first drive motor 208, the first electric cylinder 222, the second electric cylinder 311, the second drive motor 321, the third drive motor 325, the servo motor 351, and the camera in the visual detection system. The camera in the visual detection system is installed on the hinged rod 31 and is used to determine whether the polishing of the PVC pipe 40 is qualified. The main controller is used to control the operation of the entire polishing device. The man-machine interaction display screen is used to set the rotation speed of the walking wheel 324, thereby driving the moving speed of the polishing structure 30, set the working speed of the servo motor 351, thereby driving the rotation speed of the rotating mechanism 33 and the polishing speed of the polishing wheel 342, and automatically control the operation after the set value is determined. The information transmission module is used for information transmission between the main controller and the base structure 10, the clamping seat 20, and the polishing structure 30. The power module is used to provide stable power supply for the control end. The storage module is used to store the operation information data of the entire silencing device.

[0054] Working principle:

[0055] The present application is aimed at polishing the inner wall of a PVC pipe 40 with a large diameter:

[0056] First, rotate the polishing wheel 342 outward to make it contact the inner wall of the PVC pipe 40, then drive the sliding sleeve 322 through the second drive motor 321 to make the walking wheel 324 contact the inner wall of the PVC pipe 40, and drive the walking wheel 324 through the third drive motor 325 to make the polishing structure 30 move inside the PVC pipe 40;

[0057] Place the polishing structure 30 inside the PVC pipe 40, then place the two ends of the PVC pipe 40 between the sliding seats 201 respectively, and place the PVC pipe 40 between the first clamping plates 205, drive the rotating plate 206 to rotate through the work of the first drive motor 208 to make the first clamping plates 205 clamp the two ends of the PVC pipe 40; then drive the drive gear 352 through the servo motor 351 to make the first tooth ring of the rotating mechanism 33 rotate, drive the polishing wheel 342 to rotate through the first tooth ring, and then make the polishing wheel 342 polish the inside of the PVC pipe 40. The two articulated rods 31 are articulated, and then suitable for curved PVC pipes 40.

[0058] When the present application is aimed at polishing the outer wall of a PVC pipe 40 with a small diameter, the PVC pipe 40 is inserted through the middle of the polishing structure 30,

[0059] First, rotate the polishing wheel 342 inward to make it contact the outer wall of the PVC pipe 40, then drive the sliding sleeve 322 through the second drive motor 321 to make the walking wheel 324 contact the outer wall of the PVC pipe 40, and drive the walking wheel 324 through the third drive motor 325 to make the polishing structure 30 move outside the PVC pipe 40;

[0060] Place the PVC pipe 40 outside the polishing structure 30, then place the two ends of the PVC pipe 40 outside the second clamping plates 223 respectively, and drive the sliding rod 225 to move through the work of the first electric cylinder 222 to make the second clamping plates 223 clamp the inside of the two ends of the PVC pipe 40; then drive the drive gear 352 through the servo motor 351 to make the second tooth ring of the rotating mechanism 33 rotate, drive the polishing wheel 342 to rotate through the second tooth ring, and then make the polishing wheel 342 polish the outer wall of the PVC pipe 40. The two articulated rods 31 are articulated, and then suitable for curved PVC pipes 40.

Claims

1. A multi-functional polishing device for PVC pipes, characterized in that, The device includes a polishing structure installed on the inner or outer side of a PVC pipe. The polishing structure comprises a fixed end plate, a hinged rod installed on the inner side of the fixed end plate, and a rotating mechanism movably installed on the outer side of the fixed end plate. A polishing assembly is located on the outer side of the rotating mechanism, and a traveling structure and a driving structure are mounted on the hinged rod. Two fixed end plates are placed opposite each other, and corresponding hinged rods on the inner sides of the two fixed end plates are hinged together. The traveling wheel of the traveling structure contacts the inner or outer surface of the PVC pipe. The driving structure is connected to the rotating mechanism. The polishing wheel of the polishing assembly contacts the inner or outer surface of the PVC pipe. The rotating mechanism includes an equal number of first and second gear blocks, with the first gear blocks forming a first gear ring connected to the driving structure; or a second gear block is installed between adjacent first gear blocks, with the first and second gear blocks forming a second gear ring connected to the driving structure.

2. The multi-functional polishing equipment for PVC pipes according to claim 1, characterized in that, The first gear block includes a first gear block body, a first tooth disposed on the outer side of the first gear block body, a sliding groove disposed at the end of the first gear block body away from the fixed end plate, and a round hole disposed on the sliding groove; a second tooth is disposed on the inner side of the first gear block body, and adjacent second teeth are spliced ​​together to form a first gear ring.

3. The multi-functional polishing equipment for PVC pipes according to claim 2, characterized in that, The second gear block includes a second gear block body, a locking block that slides in the groove of the second gear block body, a connecting plate fixed to one end of the second gear block body away from the fixed end plate, a limiting post fixed to the connecting plate, and a third tooth disposed on the outside of the second gear block body. The connecting plate is slidably installed in the slide groove, and the limiting post is slidably installed in the circular hole. Adjacent first teeth and third teeth are spliced ​​together to form a second gear ring.

4. A multi-functional polishing device for PVC pipes according to any one of claims 1-3, characterized in that, The polishing assembly includes a fixed plate, a polishing wheel rotatably mounted on the fixed plate, and a third spring connecting the fixed plate and the first gear block. The end of the fixed plate away from the polishing wheel is rotatably mounted on the first gear block.

5. The multi-functional polishing equipment for PVC pipes according to claim 1, characterized in that, The walking structure includes a second drive motor, a sliding sleeve, a first spring installed in the sliding sleeve, a walking wheel rotatably installed at the slide rod end of the sliding sleeve, and a third drive motor for driving the walking wheel. The second drive motor is fixedly installed on the side of the hinge rod, and its motor shaft is fixedly connected to the sliding sleeve; the third drive motor is fixedly connected to the slide rod of the sliding sleeve.

6. The multi-functional polishing equipment for PVC pipes according to claim 1, characterized in that, The polishing equipment also includes a base structure and a clamping seat mounted on the base structure, the clamping seat being used to clamp PVC pipes.

7. A multi-functional polishing device for PVC pipes according to claim 6, characterized in that, The base structure includes a first base and a second base that are rotatably connected to each other, a first slide rail disposed on the first base, and a second slide rail disposed on the second base; clamping seats are slidably mounted on both the first slide rail and the second slide rail.

8. A multi-functional polishing device for PVC pipes according to claim 7, characterized in that, The clamping seat includes a sliding seat, a first fixed circular plate disposed on the sliding seat, a limiting bracket, clamping rods, a first clamping plate, a rotating plate rotatably mounted inside the limiting bracket, a limiting groove disposed on the rotating plate, and a driving device for driving the rotating plate. The sliding seat is slidably mounted on a first slide rail or a second slide rail. The first fixed circular plate is disposed on the inner end of the sliding seat. A plurality of clamping rods are slidably mounted in the grooves of the limiting bracket. One end of the clamping rod is slidably connected to the limiting groove, and the other end is fixedly connected to the first clamping plate. The driving device is disposed outside the first fixed circular plate, and the driving device is drively connected to the rotating plate.

9. A multi-functional polishing device for PVC pipes according to claim 8, characterized in that, The driving device includes a first drive motor fixedly mounted on the outside of the first fixed circular plate, a circular plate rotatably mounted on the first fixed circular plate, and an internal gear ring fixedly mounted on the circular plate. The internal gear ring meshes with a gear on the motor shaft of the first drive motor, and the circular plate and the rotating plate are fixedly connected by a shaft.

10. A multi-functional polishing device for PVC pipes according to claim 8, characterized in that, The clamping seat also includes a second fixed circular plate fixedly installed in the middle of the limiting bracket, a first electric cylinder fixedly installed on the second fixed circular plate near the sliding seat, a second clamping plate and a connecting rod fixedly installed on the second fixed circular plate away from the sliding seat, and a sliding rod slidably installed on the side of the second fixed circular plate away from the sliding seat. The outer side of the sliding rod is rotatably connected to the connecting rod, and the end of the connecting rod away from the sliding rod is rotatably connected to the inner side of the second clamping plate. The piston rod of the first electric cylinder is fixedly connected to the sliding rod.

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