Burr cleaning and grinding mechanism for plastic pipe fitting

Abstract

The invention provides a plastic pipe burr cleaning and polishing mechanism which comprises an automatic discharging mechanism, the bottom of the automatic discharging mechanism is connected with a conveying table, the side face of the conveying table is connected with a first pipe positioning part, a second pipe positioning part is arranged on the opposite side of the first pipe positioning part, and a moving rail is arranged at the bottom of the first pipe positioning part. One end of the moving track is connected with the cutting and grinding mechanism, the other end of the moving track is connected with the chamfering mechanism, and a discharging track is arranged at the rear end of the second pipe positioning part. The technical problems that plastic particles generated in the grinding process are harmful to human bodies, conventional automatic grinding equipment can cut and grind one end face of a plastic pipe, and chamfering grinding operation is difficult to conduct on plastic pipes of different sizes are solved.

Description

Technical Field

[0001] The invention mainly relates to the technical field of plastic pipe processing, and in particular to a burr cleaning and grinding mechanism for plastic pipes. Background Art

[0002] Plastic pipe fittings refer to tubular plastic products used to transport fluids such as gas and liquid or wires and cables, etc. They usually have the characteristics of long life, light weight and corrosion resistance.

[0003] After the plastic pipe is successfully manufactured, it needs to be cut into appropriate lengths according to the specific application requirements to meet the needs of production, processing, installation, etc. In some cases, long and inconvenient plastic pipes need to be cut into shorter lengths to make transportation more convenient and safer.

[0004] The inventor discovered the following defects during the operation of the specific embodiment: Plastic pipes are difficult to fix due to their special shape during cutting, and the end faces of the pipes need to be processed after cutting, such as grinding and chamfering, to avoid problems such as cracks and burrs and improve the service life and safety of the pipes. Currently, semi-automatic grinding with manual cooperation of machinery is a better way, but this method has high labor costs, and the plastic particles generated during the grinding process are also harmful to the human body. Conventional automatic grinding equipment can only cut and grind one end face of the plastic pipe, but it is difficult to perform chamfering and grinding operations on plastic pipes of different sizes.

[0005] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Summary of the invention

[0006] 1. Technical problem to be solved by the invention: The present invention provides a plastic pipe burr cleaning and grinding mechanism to solve the technical problems existing in the above-mentioned background technology.

[0007] 2. Technical solution: To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a burr cleaning and grinding mechanism for plastic pipe fittings, including an automatic unloading mechanism, the bottom of the automatic unloading mechanism is connected to a conveying platform, the side of the conveying platform is connected to a first pipe positioning part, a second pipe positioning part is provided on the opposite side of the first pipe positioning part, a movable track is provided at the bottom of the first pipe positioning part, one end of the movable track is connected to a cutting and grinding mechanism, the other end of the movable track is connected to a chamfering mechanism, and a discharging track is provided at the rear end of the second pipe positioning part. The device is an automated operation. When it is necessary to cut and grind a batch of pipes, the pipes are placed in the automatic unloading mechanism, the pipes slide out of the automatic unloading mechanism one by one and enter the conveying platform, the conveying platform pushes the pipe to the first pipe positioning part, pushes it to the designated cutting position and then cooperates with the second pipe positioning part to position it, then the cutting and grinding mechanism moves along the movable track for cutting, after cutting and grinding are completed, the chamfering mechanism grinds the inner and outer surfaces of the pipe, and then the conveying platform continues to send the pipe out.

[0008] Furthermore, the automatic unloading mechanism includes a material storage box body, the top of the material storage box body is connected to the figure-eight expansion cavity, the material storage box body is slidably connected to the length adjustment mechanism, the bottom of the length adjustment mechanism is provided with a first concave slide rail on both sides, the first concave slide rail is matched and connected to the adjustment slider, the bottom of the material storage box body is connected to a supporting discharge plate, the rear of the supporting discharge plate is connected to a first cylinder, and the end of the first cylinder is connected to a pushing plate.

[0009] Furthermore, the length adjustment mechanism includes a symmetrically arranged second concave slide rail, a rotating screw is provided in the second concave slide rail, and the rotating screw is matched and connected to the transverse moving plate.

[0010] Furthermore, the inner side of the adjusting slider is an inclined surface, the rear end of the adjusting slider is connected to a square fixing block, a threaded hole is provided on the square fixing block, a discharging groove is provided on the supporting discharging plate at the bottom of the adjusting slider, and a limiting protrusion is provided on the outer side of the discharging groove.

[0011] Furthermore, a discharging chute is provided in the middle of the conveying platform, a second cylinder is provided on the outer side of the bottom end of the discharging chute, and the end of the second cylinder is connected to a pushing disc.

[0012] Furthermore, the first pipe positioning portion includes a square fixing tube, a conveying circular hole is opened in the middle of the square fixing tube, a third cylinder is provided on the top of the conveying circular hole, the telescopic shaft end of the third cylinder is detachably connected to an arc-shaped fixing plate, the second pipe positioning portion has the same structure as the first pipe positioning portion, the bottom of the second pipe positioning portion is connected to a concave support plate, and the side of the concave support plate is connected to a fourth cylinder.

[0013] Furthermore, the movable track includes a return slide rail, a first motor is provided on the outer side of the return slide rail, the first motor is connected to a first screw rod, and the cutting and grinding mechanism matches the chamfering mechanism and is connected to the first screw rod.

[0014] Furthermore, the cutting and grinding mechanism includes a support column, a concave groove is symmetrically provided on the inner side of the support column, a second screw rod is provided in the concave groove, the second screw rod is connected to an L-shaped support block, a cutting disc is provided on the L-shaped support block, and grinding blocks are provided on both sides of the cutting disc, and the grinding blocks gradually widen along the direction of the cutting disc blade.

[0015] Furthermore, the chamfering mechanism includes a sliding support block, the top of the sliding support block is connected to a first support plate, a fourth motor is arranged on the first support plate, the rotating shaft of the fourth motor is connected to a rotating plate, the bottom of the rotating plate is connected to a placement platform, positioning blocks are arranged on both sides of the top of the placement platform, a third motor is arranged on the positioning block, the third motor is connected to a third screw rod, a first movable plate is symmetrically arranged on the third screw rod, and an inner chamfering mechanism and an outer chamfering mechanism are symmetrically arranged on the first movable plate.

[0016] Further, the inner chamfering mechanism includes a fifth motor, the fifth motor rotating shaft is connected to the polygonal rotating block, the polygonal rotating block is provided with an electromagnet, a telescopic slide column is provided on the outer side of the electromagnet, a spring is provided on the outer side of the telescopic slide column, the bottom of the telescopic slide column is made of magnetic material, and the end of the telescopic slide column is connected to the first arc-shaped grinding block; The external chamfering mechanism comprises a sixth motor, the outer side of the sixth motor is connected to a multi-jaw chuck, and the jaws of the multi-jaw chuck are respectively connected to second arc-shaped grinding blocks.

[0017] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The invention has a reasonable design, can cut plastic pipes in batches, and can grind and remove burrs on the fracture after cutting. When the device is working, a large number of pipes are stored through the unloading mechanism, and after each loading, the device can wait for subsequent operations without manual operation. The automatic unloading mechanism of the device is equipped with a length adjustment mechanism, which can be adjusted according to the length of the pipe fittings to adapt to plastic pipes of different lengths. The eight-shaped expansion cavity at the top further increases the storage capacity; An adjustment slider is set at the bottom of the automatic unloading mechanism to adjust the size of the bottom discharge port during unloading, thereby adapting to the unloading operation of pipes with different diameters; The first pipe positioning part and the second pipe positioning part can fix the plastic pipe when it is cut, and the positioning operation of different pipe diameters can be achieved through the arc-shaped fixing plate and the third cylinder; Grinding blocks are provided on both sides of the cutting and grinding mechanism, which can grind the end faces of plastic pipes while cutting them, thus improving the quality of pipe production. The internal and external chamfering mechanisms can chamfer the fractured parts of plastic pipes after cutting, and the internal chamfering mechanism can be adaptively adjusted according to the size of the pipe diameter. The faster the rotation speed, the better the grinding effect. The external chamfering mechanism can also grind plastic pipes of different diameters.

[0018] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of another angle of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 It is a structural schematic diagram of the automatic unloading mechanism of the present invention; Figure 5 This is a schematic structural diagram of the first pipe positioning portion of the present invention; Figure 6 It is a schematic diagram of the structure of the cutting and grinding mechanism of the present invention; Figure 7 It is a schematic diagram of the chamfering mechanism structure of the present invention; Figure 8 It is a schematic diagram of the local structure of the chamfering mechanism of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the telescopic sliding column of the present invention.

[0020] Reference numerals: 1. Automatic unloading mechanism; 11. Storage box; 12. To the eight-shaped expansion chamber; 13. Length adjustment mechanism; 131. Second concave slide rail; 132. Rotating screw rod; 133. Lateral moving plate; 14. First concave slide rail; 15. Adjusting slider; 151. Square fixing block; 152. Threaded hole; 153. Discharging trough; 154. Limiting protrusion; 16. Supporting discharging plate; 17. First cylinder; 18. Pushing plate; 2. Conveying platform; 21. Discharging slideway; 22. Second cylinder; 23. Pushing disc; 3. First pipe positioning part; 31. Square fixing tube; 32. Conveying circular hole; 33. Third cylinder; 34. Arc fixing plate; 35. Concave supporting plate; 36. Fourth cylinder; 4. Second pipe positioning part; 5. Moving Track; 51, circular slide rail; 52, first motor; 6, cutting and grinding mechanism; 61, support column; 62, concave slide groove; 63, L-shaped support block; 64, cutting disc; 65, grinding block; 7, chamfering mechanism; 71, sliding support block; 72, first support plate; 73, fourth motor; 74, rotating plate; 75, placement platform; 76, positioning block; 77, third motor; 78, third screw rod; 79, first moving plate; 8, discharge track; 9, inner chamfering mechanism; 91, fifth motor; 92, polygonal rotating block; 93, electromagnet; 94, telescopic slide column; 95, spring; 96, first arc-shaped grinding block; 10, outer chamfering mechanism; 101, sixth motor; 102, multi-claw chuck; 103, second arc-shaped grinding block. DETAILED DESCRIPTION

[0021] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0025] Refer to the attached Figure 1-9 , a burr cleaning and grinding mechanism for plastic pipe fittings, comprising an automatic unloading mechanism 1, the bottom of the automatic unloading mechanism 1 is connected to a conveying platform 2, the side of the conveying platform 2 is connected to a first pipe positioning part 3, the opposite side of the first pipe positioning part 3 is provided with a second pipe positioning part 4, the bottom of the first pipe positioning part 3 is provided with a moving track 5, one end of the moving track 5 is connected to a cutting and grinding mechanism 6, the other end of the moving track 5 is connected to a chamfering mechanism 7, and a discharging track 8 is provided at the rear end of the second pipe positioning part 4. The device is an automated operation. When it is necessary to cut and grind a batch of pipes, the pipes are placed in the automatic unloading mechanism 1, the pipes slide out of the automatic unloading mechanism 1 one by one and enter the conveying platform 2, the conveying platform 2 pushes the pipe to the first pipe positioning part 3, pushes it to the designated cutting position and then cooperates with the second pipe positioning part 4 for positioning, then the cutting and grinding mechanism 6 moves along the moving track 5 for cutting, after the cutting and grinding is completed, the chamfering mechanism 7 grinds the inner and outer surfaces of the pipe, and then the conveying platform 2 continues to send the pipe out.

[0026] The automatic unloading mechanism 1 includes a material storage box body 11, the top of which is connected to an eight-shaped expansion cavity 12, a length adjustment mechanism 13 is slidably connected to the material storage box body 11, and first concave slide rails 14 are provided on both sides of the bottom of the length adjustment mechanism 13, and the first concave slide rails 14 are matched and connected to an adjusting slider 15, the bottom of the material storage box body 11 is connected to a supporting discharge plate 16, the rear of the supporting discharge plate 16 is connected to a first cylinder 17, and the end of the first cylinder 17 is connected to a pushing plate 18, multiple plastic pipes can be placed in the material storage box body 11, the eight-shaped expansion cavity 12 at the top can increase the placement capacity of pipe fittings, the length adjustment mechanism 13 can adapt to the storage of pipes of different lengths, the adjusting slider 15 can move back and forth, and then cooperate with the pushing plate 18 to realize the unloading operation of pipes of different diameters.

[0027] The length adjustment mechanism 13 includes a symmetrically arranged second concave slide rail 131, in which a rotating screw rod 132 is provided. The rotating screw rod 132 is matched and connected to a transverse moving plate 133, and the transverse moving plate 133 fits with the internal cavity. Under the action of the rotating screw rod 132, the transverse moving plate 133 can slide inside to match plastic tubes of different lengths.

[0028] The inner side of the adjusting slider 15 is an inclined surface, and the rear end of the adjusting slider 15 is connected to a square fixing block 151. A threaded hole 152 is provided on the square fixing block 151. A discharging groove 153 is provided on the supporting discharging plate 16 at the bottom of the adjusting slider 15. A limiting protrusion 154 is provided on the outer side of the discharging groove 153. The adjusting slider 15 can move forward and backward within a certain range, and then adjust the bottom outlet width to adapt to the unloading operation of plastic pipes of different diameters. After the adjustment is completed, a rotating screw can be screwed into the threaded hole 152 for fixing. The limiting protrusion 154 can pre-position the plastic pipe. When the pushing block retracts, the top plastic pipe falls into the discharging groove 153 and is limited by the limiting protrusion 154. When discharging, the first cylinder 17 pushes the pushing plate 18 forward to push the plastic pipe to the conveying platform 2.

[0029] A discharge chute 21 is opened in the middle of the conveying platform 2, and a second cylinder 22 is provided on the outer side of the bottom end of the discharge chute 21. The end of the second cylinder 22 is connected to a pushing disc 23, and the pushing disc 23 is slidably connected to the first pipe positioning part 3. When the plastic pipe slides to the bottom of the discharge chute 21, the second cylinder 22 can move the pushing disc 23 back and forth, thereby driving the plastic pipe forward.

[0030] The first pipe positioning portion 3 includes a square fixing tube 31, a conveying circular hole 32 is opened in the middle of the square fixing tube 31, a third cylinder 33 is arranged on the top of the conveying circular hole 32, and the telescopic shaft end of the third cylinder 33 is detachably connected to an arc-shaped fixing plate 34. The second pipe positioning portion 4 has the same structure as the first pipe positioning portion 3, a concave support plate 35 is connected to the bottom of the second pipe positioning portion 4, and a fourth cylinder 36 is connected to the side of the concave support plate 35. The plastic pipe can be conveyed in the conveying circular hole 32, and the third cylinder 33 is equipped with an arc-shaped fixing plate 34 to fix the pipe when it is cut. The fourth cylinder 36 can drive the second pipe positioning portion 4 to move forward and backward, and move the cut pipe outward when the pipe is chamfered, thereby facilitating the operation of the chamfering mechanism 7.

[0031] The movable track 5 includes a circular slide rail 51, and a first motor 52 is provided on the outer side of the circular slide rail 51. The first motor 52 is connected to the first screw rod. The cutting and grinding mechanism 6 and the chamfering mechanism 7 are matched and connected to the first screw rod. The cutting and grinding mechanism 6 and the chamfering mechanism 7 can move forward and backward respectively following the rotation of the first screw rod.

[0032] The cutting and grinding mechanism 6 includes a support column 61, a concave groove 62 is symmetrically provided on the inner side of the support column 61, a second screw is provided in the concave groove 62, the second screw is connected to an L-shaped support block 63, a cutting disc 64 is provided on the L-shaped support block 63, and grinding blocks 65 are provided on both sides of the cutting disc 64. The grinding blocks 65 gradually widen along the blade direction of the cutting disc 64. The cutting disc 64 can move forward and backward under the action of the first screw to cut the plastic pipe, or can be lifted and lowered under the action of the second screw to cut the plastic pipe. After cutting, the grinding blocks 65 on both sides can grind the vertical surfaces of the plastic pipe.

[0033] The chamfering mechanism 7 includes a sliding support block 71, the top of the sliding support block 71 is connected to a first support plate 72, a fourth motor 73 is provided on the first support plate 72, the rotation axis of the fourth motor 73 is connected to a rotating plate 74, the bottom of the rotating plate 74 is connected to a placement platform 75, positioning blocks 76 are provided on both sides of the top of the placement platform 75, a third motor 77 is provided on the positioning block 76, the third motor 77 is connected to a third screw rod 78, a first moving plate 79 is symmetrically provided on the third screw rod 78, and the first moving plate 79 is symmetrically provided with inner chamfers Mechanism 9 and external chamfering mechanism 10, after the plastic pipe is cut, this device can perform chamfering and grinding on the two fractures respectively, the sliding support block 71 can move back and forth on the first screw rod, the fourth cylinder 36 drives the plastic pipe after cutting to move to the predetermined position, the sliding support block 71 moves the internal and external chamfering mechanisms to the center position of the plastic pipe, the third motor 77 moves the chamfering mechanisms 7 on both sides onto the pipe fitting, and performs chamfering. After the internal chamfering is completed, the fourth motor 73 rotates 180 degrees to perform the external chamfering operation, or the external chamfering operation can be performed first.

[0034] The inner chamfering mechanism 9 comprises a fifth motor 91, the rotating shaft of the fifth motor 91 is connected to a polygonal rotating block 92, an electromagnet 93 is arranged on the polygonal rotating block 92, a telescopic slide column 94 is arranged on the outer side of the electromagnet 93, a spring 95 is arranged on the outer side of the telescopic slide column 94, the bottom of the telescopic slide column 94 is made of magnetic material, and the end of the telescopic slide column 94 is connected to a first arc-shaped grinding block 96; the device can adapt to plastic pipes of different diameters, the electromagnet 93 is in a strong magnetic state before grinding, the telescopic slide column 94 is contracted, and after entering the plastic pipe, the electromagnet 93 is demagnetized, and the first arc-shaped grinding block 96 is extended outward under the action of the spring 95, and the fifth motor 91 can rotate to grind the inner ring of the plastic pipe, and the faster the rotation speed, the greater the centrifugal force, and the better the grinding effect; The external chamfering mechanism 10 includes a sixth motor 101, and the outer side of the sixth motor 101 is connected to a multi-jaw chuck 102, and the jaws of the multi-jaw chuck 102 are respectively connected to a second arc-shaped grinding block 103. The multi-jaw chuck 102 can adjust the position of the second arc-shaped grinding block 103 according to the size of the plastic pipe, and then the sixth motor 101 rotates to perform the external chamfering operation.

[0035] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A plastic pipe burr cleaning and grinding mechanism, characterized in that: The invention comprises an automatic unloading mechanism (1), wherein the bottom of the automatic unloading mechanism (1) is connected to a conveying platform (2), the side of the conveying platform (2) is connected to a first pipe positioning portion (3), a second pipe positioning portion (4) is provided on the opposite side of the first pipe positioning portion (3), a movable track (5) is provided at the bottom of the first pipe positioning portion (3), one end of the movable track (5) is connected to a cutting and grinding mechanism (6), the other end of the movable track (5) is connected to a chamfering mechanism (7), and a discharge track (8) is provided at the rear end of the second pipe positioning portion (4).

2. A plastic pipe burr cleaning and grinding mechanism according to claim 1, characterized in that: The automatic unloading mechanism (1) comprises a material storage box body (11), the top of the material storage box body (11) is connected to an eight-shaped expansion cavity (12), a length adjustment mechanism (13) is slidably connected inside the material storage box body (11), first concave slide rails (14) are provided on both sides of the bottom of the length adjustment mechanism (13), the first concave slide rails (14) are matched and connected to an adjustment slider (15), the bottom of the material storage box body (11) is connected to a supporting discharge plate (16), the rear of the supporting discharge plate (16) is connected to a first cylinder (17), and the end of the first cylinder (17) is connected to a push plate (18).

3. A plastic pipe burr cleaning and polishing mechanism according to claim 2, characterized in that: The length adjustment mechanism (13) comprises a symmetrically arranged second concave slide rail (131), a rotating screw rod (132) being arranged in the second concave slide rail (131), and the rotating screw rod (132) being matched and connected to a transverse moving plate (133).

4. A plastic pipe burr cleaning and polishing mechanism according to claim 2, characterized in that: The inner side of the adjusting slider (15) is an inclined surface. The rear end of the adjusting slider (15) is connected to a square fixing block (151). The square fixing block (151) is provided with a threaded hole (152). The supporting discharge plate (16) at the bottom of the adjusting slider (15) is provided with a discharge groove (153). A limiting protrusion (154) is provided on the outer side of the discharge groove (153).

5. A plastic pipe burr cleaning and grinding mechanism according to claim 2, characterized in that: A discharge chute (21) is provided in the middle of the conveying platform (2), a second cylinder (22) is provided on the outer side of the bottom end of the discharge chute (21), and the end of the second cylinder (22) is connected to a pushing disc (23).

6. A plastic pipe burr cleaning and polishing mechanism according to claim 1, characterized in that: The first pipe positioning portion (3) comprises a square fixing tube (31), a conveying circular hole (32) is opened in the middle of the square fixing tube (31), a third cylinder (33) is arranged on the top of the conveying circular hole (32), and the end of the telescopic shaft of the third cylinder (33) is detachably connected to an arc-shaped fixing plate (34). The second pipe positioning portion (4) has the same structure as the first pipe positioning portion (3), the bottom of the second pipe positioning portion (4) is connected to a concave support plate (35), and the side of the concave support plate (35) is connected to a fourth cylinder (36).

7. A plastic pipe burr cleaning and grinding mechanism according to claim 1, characterized in that: The movable track (5) comprises a circular slide rail (51), a first motor (52) is provided on the outer side of the circular slide rail (51), the first motor (52) is connected to a first screw rod, and the cutting and grinding mechanism (6) matches the chamfering mechanism (7) and is connected to the first screw rod.

8. A plastic pipe burr cleaning and grinding mechanism according to claim 7, characterized in that: The cutting and grinding mechanism (6) comprises a support column (61), a concave slide groove (62) is symmetrically arranged on the inner side of the support column (61), a second screw is arranged in the concave slide groove (62), the second screw is connected to an L-shaped support block (63), a cutting disc (64) is arranged on the L-shaped support block (63), and grinding blocks (65) are arranged on both sides of the cutting disc (64), and the grinding blocks (65) gradually widen along the blade direction of the cutting disc (64).

9. A plastic pipe burr cleaning and grinding mechanism according to claim 8, characterized in that: The chamfering mechanism (7) comprises a sliding support block (71), the top of the sliding support block (71) is connected to a first support plate (72), a fourth motor (73) is provided on the first support plate (72), a rotating shaft of the fourth motor (73) is connected to a rotating plate (74), the bottom of the rotating plate (74) is connected to a placement platform (75), positioning blocks (76) are provided on both sides of the top of the placement platform (75), a third motor (77) is provided on the positioning block (76), the third motor (77) is connected to a third screw rod (78), a first movable plate (79) is symmetrically provided on the third screw rod (78), and an inner chamfering mechanism (9) and an outer chamfering mechanism (10) are symmetrically provided on the first movable plate (79).

10. A plastic pipe burr cleaning and grinding mechanism according to claim 9, characterized in that: The inner chamfering mechanism (9) comprises a fifth motor (91), the rotation axis of the fifth motor (91) is connected to a polygonal rotating block (92), an electromagnet (93) is provided on the polygonal rotating block (92), a telescopic sliding column (94) is provided on the outer side of the electromagnet (93), a spring (95) is provided on the outer side of the telescopic sliding column (94), the bottom of the telescopic sliding column (94) is made of magnetic material, and the end of the telescopic sliding column (94) is connected to a first arc-shaped grinding block (96); The external chamfering mechanism (10) comprises a sixth motor (101), the outer side of the sixth motor (101) is connected to a multi-jaw chuck (102), and the jaws of the multi-jaw chuck (102) are respectively connected to second arc-shaped grinding blocks (103).

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