An automatic plastic pipe cutting device

Abstract

The present invention discloses an automatic plastic pipe cutting device, which relates to the technical field of cutting devices and includes a main body. Inside the main body, three cutting mechanisms are evenly and movably connected in a limited way. In the present invention, when the double-shaft motor rotates forward, it drives the first gear to drive the first gear ring to rotate. By the rotation of the reciprocating lead screw, the distance between each cutting mechanism and the plastic pipe can be adjusted, so as to better cut plastic pipes with different diameters. Then, when the double-shaft motor rotates reversely, it drives the second gear to drive the second gear ring to rotate. Furthermore, the rotation of the second gear ring can drive multiple cutting mechanisms and multiple clamping mechanisms to rotate annularly inside the main body. Thus, while the multiple clamping mechanisms clamp and fix the plastic pipe, the cutting blades of the multiple cutting mechanisms rotate around their own axes and perform revolution at the same time, so as to perform annular cutting on the plastic pipe, avoid the phenomenon of deformation of the plastic pipe during cutting, and effectively improve the overall working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting devices, and specifically relates to an automatic plastic pipe cutting device. Background Art

[0002] Plastic pipes are generally made of synthetic resin, that is, polyester, as raw materials, and stabilizers, lubricants, plasticizers, etc. are added. They are processed by extrusion in a pipe-making machine by the method of "plastic molding". They are mainly used as water supply pipes for the tap water supply system of housing construction, drainage, exhaust and sewage sanitary pipes, underground drainage pipe systems, rainwater pipes, and conduits for wire installation. Plastic pipes are divided into two major categories: thermoplastic plastic pipes and thermosetting plastic pipes. Thermoplastic ones include polyvinyl chloride pipes, polyethylene pipes, polypropylene pipes, polyoxymethylene pipes, etc., and thermosetting ones include phenolic plastic pipes, etc. When plastic pipes are further processed and used, they need to be cut by a cutting device to make plastic pipes of different lengths meet the requirements of actual use.

[0003] In the prior art, most cutting devices for plastic pipes directly perform downward cutting on plastic pipes through cutting blades. Downward cutting will not only cause a certain degree of deformation to the pipes, resulting in a certain degree of extrusion deformation at the cutting openings of the plastic pipes after cutting, affecting the normal use in the later stage, but also the overall cutting efficiency of downward cutting is relatively slow, affecting the overall working efficiency. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide an automatic plastic pipe cutting device to solve the technical problems in the prior art that downward cutting will not only cause a certain degree of deformation to the pipes, resulting in a certain degree of extrusion deformation at the cutting openings of the plastic pipes after cutting, affecting the normal use in the later stage, but also the overall cutting efficiency of downward cutting is relatively slow, affecting the overall working efficiency.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An automatic plastic pipe cutting device, including a main body, inside which three cutting mechanisms are evenly and movably limitedly connected, and a double-shaft motor is installed inside the main body, and a first gear and a second gear are respectively connected to the output ends on both sides of the double-shaft motor;

[0006] On both sides inside the main body, a first toothed ring meshing with the first gear and a second toothed ring meshing with the second gear are respectively rotatably connected. On one side inside the main body, a limiting frame cooperating with three cutting mechanisms is movably and limit-connected. The cutting mechanism includes a distance adjusting frame, an adjusting plate, a reciprocating lead screw, an adjusting gear, and a connecting plate. The three distance adjusting frames are located at the triangular positions inside the main body. On one side of the three distance adjusting frames, an adjusting plate extending into the limiting frame is fixed. The reciprocating lead screw is rotatably connected to the limiting frame and penetrates through the adjusting plate. At the tops of multiple reciprocating lead screws, adjusting gears meshing with the first toothed ring are movably connected. The cutting mechanism further includes a cutting motor, a cutting blade, a pressing block, a first pressing roller shaft, and a second pressing roller shaft. The cutting motor is fixedly installed inside the distance adjusting frame, and the cutting blade is fixed to the output end of the cutting motor. A pressing block is movably connected to one side inside the distance adjusting frame. The first pressing roller shaft is rotatably connected to the inner side of the pressing block. The second pressing roller shafts are rotatably connected to both ends inside the distance adjusting frame;

[0007] On the top of one side of each distance adjusting frame, a connecting plate extending into the second toothed ring is fixed. Inside the second toothed ring, fixing rods penetrating through the connecting plate are fixed. And at the triangular positions inside the second toothed ring, chutes cooperating with the connecting plate are provided. The cutting mechanism further includes a cooperating one-way bearing. The cooperating one-way bearing is located between the reciprocating lead screw and the adjusting gear. The output shafts on both sides of the double-shaft motor are respectively rotatably connected to the first gear and the second gear through a first one-way bearing and a second one-way bearing;

[0008] Inside the main body, three clamping mechanisms staggered with the cutting mechanisms are evenly arranged. The clamping mechanism includes a clamping frame, a clamping roller shaft, a support rod, an electromagnet, a spring, a magnet plate, and a fixing block. The three fixing blocks are fixed at the triangular positions of the second toothed ring. And electromagnets are fixed inside the fixing blocks. On both sides inside the electromagnets, support rods are slidably connected. On the top of every two support rods, a clamping frame is fixed. And the clamping roller shaft is located inside the clamping frame and is rotatably connected to it. A magnet plate cooperating with the electromagnet is fixed at the bottom of the clamping frame. And a spring is fixed between the magnet plate and the electromagnet and outside the two support rods.

[0009] By adopting the above technical solution, three cutting mechanisms are evenly arranged inside the main body. At the positions where the inside of the main body intersects with the three cutting mechanisms, three clamping mechanisms are arranged. Then, while clamping the plastic pipe, the inner sides of the three cutting mechanisms and the three clamping mechanisms cut the plastic pipe. Specifically, when the dual-axis motor rotates forward, it drives the first gear to drive the first gear ring to rotate. The rotation of the first gear ring drives multiple adjusting gears to rotate, and then multiple reciprocating lead screws rotate. By the rotation of the reciprocating lead screws, the distance between each cutting mechanism and the plastic pipe can be adjusted, so as to better cut plastic pipes with different diameters. Then, when the dual-axis motor rotates in reverse, it drives the second gear to drive the second gear ring to rotate. Since the second gear ring is movably and limitedly connected to the multiple cutting mechanisms and the multiple clamping mechanisms, the rotation of the second gear ring can drive the multiple cutting mechanisms and the multiple clamping mechanisms to rotate annularly inside the main body. Thus, while the multiple clamping mechanisms clamp and fix the plastic pipe, the cutting blades of the multiple cutting mechanisms revolve while rotating themselves, so as to perform annular cutting on the plastic pipe. Not only is the overall cutting effect good, avoiding the phenomenon of deformation of the plastic pipe during cutting, but also the plastic pipe can be cut more quickly, effectively improving the overall working efficiency.

[0010] The present invention is further configured such that an electric slip ring is fixed on one side inside the main body, and the electric slip ring is electrically connected to an external power source through a wire.

[0011] By adopting the above technical solution, the electric slip ring is electrically connected to the dual-axis motor, multiple cutting motors, and multiple electromagnets. Under the action of the electric slip ring, the connecting wires therebetween will not be entangled and interfered with.

[0012] The present invention is further configured such that support legs are fixed at both ends of the outside of the main body, and anti-slip pads are fixedly arranged at the bottoms of the support legs, and the anti-slip pads are made of rubber.

[0013] By adopting the above technical solution, the support legs play a role in supporting and fixing the main body.

[0014] In summary, the present invention mainly has the following beneficial effects: The present invention is provided with three groups of cutting mechanisms uniformly inside the main body, and three groups of clamping mechanisms are arranged at the positions where the inside of the main body intersects with the three groups of cutting mechanisms. Furthermore, while clamping the plastic pipe, the three groups of cutting mechanisms and the inner sides of the three groups of clamping mechanisms cut the plastic pipe. Specifically, when the dual-axis motor rotates forward, it drives the first gear to drive the first toothed ring to rotate. When the first toothed ring rotates, it drives a plurality of adjusting gears to rotate. Furthermore, a plurality of reciprocating lead screws rotate. By rotating the reciprocating lead screws, the distance between each group of cutting mechanisms and the plastic pipe can be adjusted, so as to better cut plastic pipes with different diameters. Then, when the dual-axis motor rotates in reverse, it drives the second gear to drive the second toothed ring to rotate. Since the second toothed ring is movably and limitedly connected to the plurality of cutting mechanisms and the plurality of clamping mechanisms, the rotation of the second toothed ring can drive the plurality of cutting mechanisms and the plurality of clamping mechanisms to rotate annularly inside the main body. Furthermore, while the plurality of clamping mechanisms clamp and fix the plastic pipe, the cutting blades of the plurality of cutting mechanisms revolve while rotating themselves, so as to perform annular cutting on the plastic pipe. Not only is the overall cutting effect good, avoiding the phenomenon of deformation of the plastic pipe during cutting, but also the plastic pipe is cut more quickly, effectively improving the overall working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0016] Figure 2 is a side cross-sectional view of the present invention;

[0017] Figure 3 for the present invention Figure 2 enlarged view of part A;

[0018] Figure 4 is a front cross-sectional view of the present invention;

[0019] Figure 5 is a schematic structural diagram of the first perspective of the cutting mechanism of the present invention;

[0020] Figure 6 is a schematic structural diagram of the second perspective of the cutting mechanism of the present invention;

[0021] Figure 7 is a schematic structural diagram of the clamping mechanism of the present invention.

[0022] In the figure: 1. Main body; 2. Limit frame; 3. Cutting mechanism; 301. Distance adjustment frame; 302. Adjusting plate; 303. Reciprocating lead screw; 304. Adjusting gear; 305. Matching one-way bearing; 306. Cutting motor; 307. Cutting blade; 308. Pressing block; 309. First pressing roller shaft; 310. Second pressing roller shaft; 311. Connecting plate; 4. First gear ring; 5. Biaxial motor; 6. First gear; 7. First one-way bearing; 8. Clamping mechanism; 801. Clamping frame; 802. Clamping roller shaft; 803. Support rod; 804. Electromagnet; 805. Spring; 806. Magnet plate; 807. Fixed block; 9. Second gear ring; 10. Second gear; 11. Second one-way bearing; 12. Fixed rod; 13. Electric slip ring; 14. Support leg. Detailed implementation manners

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as a limitation to the present invention.

[0024] The embodiments of the present invention will be described below according to its overall structure.

[0025] An automatic plastic pipe cutting device, as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 shown, includes a main body 1, three cutting mechanisms 3 are evenly and movably connected in a limited way inside the main body 1, a biaxial motor 5 is installed inside the main body 1, and a first gear 6 and a second gear 10 are respectively connected to the output ends on both sides of the biaxial motor 5;

[0026] On both sides inside the main body 1, a first toothed ring 4 meshing with the first gear 6 and a second toothed ring 9 meshing with the second gear 10 are respectively rotatably connected. On one side inside the main body 1, a limiting frame 2 cooperating with three cutting mechanisms 3 is movably and limit-connected. The cutting mechanism 3 includes a distance adjustment frame 301, an adjustment plate 302, a reciprocating lead screw 303, an adjustment gear 304, and a connecting plate 311. The three distance adjustment frames 301 are located at the triangular positions inside the main body 1. On one side of the three distance adjustment frames 301, an adjustment plate 302 extending into the limiting frame 2 is fixed. The reciprocating lead screw 303 is rotatably connected to the limiting frame 2 and penetrates through the adjustment plate 302. At the tops of multiple reciprocating lead screws 303, adjustment gears 304 meshing with the first toothed ring 4 are movably connected. The cutting mechanism further includes a cutting motor 306, a cutting blade 307, a pressing block 308, a first pressing roller shaft 309, and a second pressing roller shaft 310. The cutting motor 306 is fixedly installed inside the distance adjustment frame 301, and the cutting blade 307 is fixed to the output end of the cutting motor 306. On one side inside the distance adjustment frame 301, a pressing block 308 is movably connected. Inside the pressing block 308, a first pressing roller shaft 309 is rotatably connected. At both ends inside the distance adjustment frame 301, second pressing roller shafts 310 are rotatably connected;

[0027] On the top of one side of the distance adjustment frame 301, connecting plates 311 extending into the second toothed ring 9 are all fixed. Inside the second toothed ring 9, fixing rods 12 penetrating through the connecting plates 311 are all fixed, and chutes cooperating with the connecting plates 311 are all opened at the triangular positions inside the second toothed ring 9. The cutting mechanism 3 further includes a cooperating one-way bearing 305. The cooperating one-way bearing 305 is located between the reciprocating lead screw 303 and the adjustment gear 304. The output shafts on both sides of the dual-axis motor 5 and the first gear 6 and the second gear 10 are respectively rotatably connected through a first one-way bearing 7 and a second one-way bearing 11. Among them, the reciprocating lead screw 303 rotates relative to the limiting frame 2, and among them, the limiting frame 2 can rotate annularly relative to the main body 1. Under the action of the reciprocating lead screw 303, the adjustment plate 302 of the cutting mechanism 3 adjusts the distance inside the limiting frame 2, thereby adjusting the distance of the cutting mechanism 3, facilitating the cutting of plastic pipes with different diameters;

[0028] Then the dual-axis motor 5 reversely drives the second gear 10 to drive the second toothed ring 9 to rotate. Since the second toothed ring 9 and multiple cutting mechanisms 3 and multiple clamping mechanisms 8 are movably and limit-connected, the rotation of the second toothed ring 9 can drive multiple cutting mechanisms 3 and multiple clamping mechanisms 8 to rotate annularly inside the main body 1. Thus, while the multiple clamping mechanisms 8 clamp and fix the plastic pipe, the cutting blades 307 of the multiple cutting mechanisms 3 revolve while rotating themselves, thereby performing annular cutting on the plastic pipe. Not only is the overall cutting effect better, avoiding the phenomenon of deformation of the plastic pipe during cutting, but also the plastic pipe is cut more quickly, effectively improving the overall working efficiency;

[0029] Furthermore, the distance adjusting frame 301 of the multi-group cutting mechanism 3 and the second gear ring 9 are movably and limitedly connected through the cooperation of the connecting plate 311 and the fixing rod 12. The end of the connecting plate 311 is slidably connected inside the second gear ring 9, and the fixing rod 12 penetrates through the connecting plate 311 for sliding connection. Therefore, when the second gear ring 9 rotates annularly, it can drive the multi-group cutting mechanism 3 and the multi-group clamping mechanism 8 to rotate annularly inside the main body 1;

[0030] Three groups of clamping mechanisms 8 are evenly arranged inside the main body 1 and are staggered with the cutting mechanism 3. The clamping mechanism 8 includes a clamping frame 801, a clamping roller shaft 802, a support rod 803, an electromagnet 804, a spring 805, a magnet plate 806 and a fixing block 807. The three fixing blocks 807 are fixed at the triangular positions of the second gear ring 9, and electromagnets 804 are fixed inside the fixing blocks 807. Support rods 803 are slidably connected to both sides inside the electromagnet 804. Clamping frames 801 are fixed to the tops of every two groups of support rods 803. The clamping roller shaft 802 is located inside the clamping frame 801 and is rotatably connected thereto. A magnet plate 806 that cooperates with the electromagnet 804 is fixed to the bottom of the clamping frame 801, and a spring 805 is fixed between the magnet plate 806 and the electromagnet 804 and outside the two support rods 803. The clamping mechanism 8 uses the magnetic force generated by the electromagnet 804 to push the magnet plate 806 to move, thereby driving the clamping frame 801 and the clamping roller shaft 802 to clamp and fix the plastic pipe. The clamping roller shaft 802 is rotatably connected to the clamping frame 801, so as not to affect the overall annular rotation of the clamping mechanism 8.

[0031] Please refer to Figure 2 , a slip ring 13 is fixed to one side inside the main body 1, and the slip ring 13 is electrically connected to an external power supply through a wire. By setting the above structure in the present invention, the slip ring 13 is electrically connected to the double-shaft motor 5, multiple cutting motors 306 and multiple electromagnets 804. Under the action of the slip ring 13, the connecting wires therebetween will not be entangled and interfered.

[0032] Please refer to Figure 1 , Figure 2 and Figure 4 , support legs 14 are fixed to both ends of the outside of the main body 1, and anti-slip pads are fixed to the bottoms of the support legs 14. The material of the anti-slip pads is rubber. By setting the above structure in the present invention, the support legs 14 play a role in supporting and fixing the main body 1.

[0033] The working principle of the present invention is as follows: When in use, the power supply is connected. Through the connection of the external power supply and the slip ring 13 by wires, and then the slip ring 13 is connected to the dual-axis motor 5, multiple groups of cutting motors 306, and multiple groups of electromagnets 804 by wires. Under the action of the slip ring 13, the connecting wires between them will not be entangled or interfered with;

[0034] When it is necessary to cut a plastic pipe, the staff inserts the plastic pipe into the main body 1. There are three groups of cutting mechanisms 3 evenly arranged inside the main body 1. At the positions where the three groups of cutting mechanisms 3 intersect inside the main body 1, there are three groups of clamping mechanisms 8. Then, while clamping the plastic pipe, the inner sides of the three groups of cutting mechanisms 3 and the three groups of clamping mechanisms 8 cut the plastic pipe. The cutting motor 306 inside each group of cutting mechanisms 3 is in a starting state before the distance of the cutting mechanism 3 is adjusted, so that the cutting blade 307 rotates at a high speed and gradually contacts the plastic pipe;

[0035] Specifically, the forward rotation of the dual-axis motor 5 drives the first gear 6 to drive the first gear ring 4 to rotate. The rotation of the first gear ring 4 drives multiple groups of adjusting gears 304 to rotate. Then, multiple groups of reciprocating lead screws 303 rotate. Through the rotation of the reciprocating lead screws 303, the distance between each group of cutting mechanisms 3 and the plastic pipe can be adjusted, so as to better cut plastic pipes with different diameters;

[0036] Furthermore, when the dual-axis motor 5 rotates forward, the first one-way bearing 7 and the mating one-way bearing 305 are in a locked state, while the second one-way bearing 11 is in a free rotation state. The inner side and the end face of the first gear ring 4 are both provided with tooth grooves meshing with the first gear 6 and the adjusting gear 304;

[0037] The reciprocating lead screw 303 rotates relative to the limit frame 2, and the limit frame 2 can rotate annularly relative to the main body 1. Under the action of the reciprocating lead screw 303, the adjusting plate 302 of the cutting mechanism 3 adjusts the distance inside the limit frame 2, so as to adjust the distance of the cutting mechanism 3, which is convenient for cutting plastic pipes with different diameters;

[0038] Then, the reverse rotation of the dual-axis motor 5 drives the second gear 10 to drive the second gear ring 9 to rotate. Since the second gear ring 9 is movably and limit-connected to multiple groups of cutting mechanisms 3 and multiple groups of clamping mechanisms 8, the rotation of the second gear ring 9 can drive multiple groups of cutting mechanisms 3 and multiple groups of clamping mechanisms 8 to rotate annularly inside the main body 1. Then, while the multiple groups of clamping mechanisms 8 clamp and fix the plastic pipe, the cutting blades 307 of the multiple groups of cutting mechanisms 3 rotate around their own axes and revolve at the same time, so as to perform annular cutting on the plastic pipe. The overall cutting effect is good, which can avoid the deformation of the plastic pipe during cutting, and can cut the plastic pipe more quickly, effectively improving the overall working efficiency;

[0039] Furthermore, the distance adjusting frame 301 of the multiple groups of cutting mechanisms 3 and the second gear ring 9 are movably and limit-connected through the cooperation of the connecting plate 311 and the fixing rod 12. The end of the connecting plate 311 is slidably connected inside the second gear ring 9, and the fixing rod 12 penetrates through the connecting plate 311 for sliding connection. Therefore, when the second gear ring 9 rotates annularly, it can drive the multiple groups of cutting mechanisms 3 and the multiple groups of clamping mechanisms 8 to rotate annularly inside the main body 1;

[0040] Secondly, when the double-shaft motor 5 rotates in reverse, the first one-way bearing 7 and the mating one-way bearing 305 are in an idling state, and the second one-way bearing 11 is in a locked state. Therefore, when the multiple groups of cutting mechanisms 3 rotate annularly, under the action of the mating one-way bearing 305 in the idling state, the adjusting gear 304 rotates along the first gear ring 4, and at this time, the reciprocating lead screw 303 will not be driven to rotate;

[0041] The clamping mechanism 8 uses the electromagnetic force generated by the electromagnet 804 to push the magnet plate 806 to move, thereby driving the clamping frame 801 and the clamping roller shaft 802 to clamp and fix the plastic pipe. The clamping roller shaft 802 is rotatably connected to the clamping frame 801, so it will not affect the overall annular rotation of the clamping mechanism 8;

[0042] As can be seen from the above, the present invention can not only clamp and cut plastic pipes of different diameters, but also has a good cutting effect on the plastic pipes as a whole, effectively avoiding the phenomenon of deformation of the plastic pipes during cutting. And through the annular rotation of the three groups of cutting mechanisms 3, the overall cutting efficiency of the plastic pipes is effectively improved, thus effectively improving the overall working efficiency.

[0043] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not make creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An automatic plastic pipe cutting device, comprising a main body (1), characterized in that: Inside the main body (1), three cutting mechanisms (3) are evenly and movably connected in a limited way. Inside the main body (1), a double-shaft motor (5) is installed. The output ends on both sides of the double-shaft motor (5) are respectively connected with a first gear (6) and a second gear (10). On both sides inside the main body (1), a first toothed ring (4) meshing with the first gear (6) and a second toothed ring (9) meshing with the second gear (10) are respectively rotatably connected. On one side inside the main body (1), a limiting frame (2) cooperating with the three cutting mechanisms (3) is movably connected in a limited way. The cutting mechanism (3) includes a distance adjusting frame (301), an adjusting plate (302), a reciprocating lead screw (303), an adjusting gear (304) and a connecting plate (311). The three distance adjusting frames (301) are located at the triangular positions inside the main body (1). On one side of the three distance adjusting frames (301), an adjusting plate (302) extending into the limiting frame (2) is fixed. The reciprocating lead screw (303) is rotatably connected with the limiting frame (2) and penetrates through the adjusting plate (302). At the tops of the multiple reciprocating lead screws (303), adjusting gears (304) meshing with the first toothed ring (4) are movably connected. On the top of one side of the distance adjusting frame (301), a connecting plate (311) extending into the second toothed ring (9) is fixed. Inside the second toothed ring (9), fixing rods (12) penetrating through the connecting plate (311) are fixed. And at the triangular positions inside the second toothed ring (9), chutes cooperating with the connecting plate (311) are opened. Inside the main body (1), three clamping mechanisms (8) staggered with the cutting mechanisms (3) are evenly arranged.

2. The automatic plastic pipe cutting device according to claim 1, wherein: The cutting mechanism (3) further includes a cooperating one-way bearing (305). The cooperating one-way bearing (305) is located between the reciprocating lead screw (303) and the adjusting gear (304). The output shafts on both sides of the double-shaft motor (5) and the first gear (6) and the second gear (10) are respectively rotatably connected through a first one-way bearing (7) and a second one-way bearing (11).

3. The automatic plastic pipe cutting device according to claim 1, wherein: The cutting mechanism further includes a cutting motor (306), a cutting blade (307), a pressing block (308), a first pressing roller shaft (309) and a second pressing roller shaft (310). The cutting motor (306) is fixedly installed inside the distance adjusting frame (301), and the cutting blade (307) is fixed at the output end of the cutting motor (306).

4. The automatic plastic pipe cutting device according to claim 3, wherein: On one side inside the distance adjusting frame (301), a pressing block (308) is movably connected. Inside the pressing block (308), a first pressing roller shaft (309) is rotatably connected. At both ends inside the distance adjusting frame (301), second pressing roller shafts (310) are rotatably connected.

5. The automatic plastic pipe cutting device according to claim 1, wherein: The clamping mechanism (8) includes a clamping frame (801), a clamping roller shaft (802), a support rod (803), an electromagnet (804), a spring (805), a magnet plate (806), and a fixing block (807). The three groups of fixing blocks (807) are fixed at the triangular positions of the second gear ring (9), and electromagnets (804) are fixed inside the fixing blocks (807).

6. The automatic plastic pipe cutting device according to claim 5, wherein: Both sides inside the electromagnet (804) are slidably connected with support rods (803). The tops of every two groups of support rods (803) are fixed with a clamping frame (801), and the clamping roller shaft (802) is located inside the clamping frame (801) and is rotatably connected thereto.

7. The automatic plastic pipe cutting device according to claim 5, characterized in that: The bottom of the clamping frame (801) is fixed with a magnet plate (806) that cooperates with the electromagnet (804), and a spring (805) is fixed between the magnet plate (806) and the electromagnet (804) and outside the two support rods (803).

8. The automatic plastic pipe cutting device according to claim 1, wherein: An electric slip ring (13) is fixed on one side inside the main body (1), and the electric slip ring (13) is electrically connected to an external power source through a wire.

9. The automatic plastic pipe cutting device according to claim 1, wherein: Support legs (14) are fixed at both ends outside the main body (1), and anti-slip pads are fixedly arranged at the bottoms of the support legs (14). The anti-slip pads are made of rubber.

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