Cutting device for PE pipe

Abstract

The utility model discloses a cutting device for a PE pipe. The cutting device comprises a base, and a centering clamping assembly is arranged above the base. An object placing table is arranged above the centering clamping assembly, and a pipe fitting rotating clamp is arranged on one side of the centering clamping assembly. According to the utility model, through the design of the centering and clamping assembly and the meshing transmission of the gear, the driving rack and the driven rack, the precise centering and clamping of the PE pipe are realized, the deviation in the cutting process is effectively prevented, and the cutting precision is improved; the height is adjusted through the first height adjusting rod and the second height adjusting rod, so that the pipe cutting circular saw and the auxiliary cutting wheel can adapt to PE pipes with different diameters, a clamp does not need to be replaced, and the universality of the equipment is improved; according to the pipe fitting rotating clamp, through the combination of the fixed ring and the movable ring and the design of the idler wheels on the movable shaft, flexible clamping of PE pipes of different sizes is achieved, damage to the surfaces of the PE pipes is reduced, and the cutting precision, adaptability and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe cutting, in particular to a cutting device for PE pipes. Background Art

[0002] PE, with its superior strength, high-temperature resistance, corrosion resistance, non-toxicity, environmental friendliness, and excellent wear resistance, has become an ideal alternative to traditional iron water pipes. With the accelerated pace of urbanization in my country, urban pipe network construction is in full swing, and the application scope of PE pipes has therefore been unprecedentedly expanded.

[0003] In actual applications, the length of PE pipes often needs to be precisely cut according to specific engineering requirements. This process is inseparable from efficient and accurate PE pipe cutting equipment. However, existing PE pipe cutting equipment faces many challenges during operation. On the one hand, in order to ensure the stability of the cutting process and prevent the pipe from shifting during cutting, effective clamping and fixation must be carried out; many cutting devices currently on the market perform poorly in positioning, lack the necessary adjustment functions, and are only suitable for PE pipes of specific sizes. This means that when faced with pipes of different sizes, users often need to prepare clamps of various sizes, which undoubtedly increases production costs and reduces operational flexibility; on the other hand, most existing cutting equipment relies on manual operation, which not only consumes a lot of manpower, but also increases the difficulty of cutting, making it difficult to improve cutting efficiency.

[0004] Therefore, how to develop a device that can flexibly adapt to PE pipes of different sizes and achieve efficient and automated cutting has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of the present invention is to provide a cutting device for PE pipes to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a cutting device for PE pipes, comprising a base, wherein a universal wheel is provided at the bottom of the base; a centering clamping assembly is provided above the base, wherein a storage platform is provided above the centering clamping assembly; a pipe rotating clamp is provided on one side of the centering clamping assembly, wherein the pipe rotating clamp and the storage platform are arranged side by side, and the lower end of the pipe rotating clamp is fixedly connected to the base; the centering clamping assembly includes a gear, wherein the gear is arranged horizontally, and the lower end of the gear's rotating shaft is fixedly connected to the base; an active rack and a driven rack are respectively provided on both sides of the gear, wherein the active rack and the driven rack are respectively engaged with the gear for transmission; The active rack is provided with a first sliding seat at the end away from the gear, and the driven rack is provided with a second sliding seat at the end away from the gear; a first height adjustment rod is provided at the upper end of the first sliding seat, and the fixed end of the first height adjustment rod is fixedly connected to the first sliding seat; a pipe cutting circular saw is fixedly installed on the outer side of the movable end of the first height adjustment rod, and the saw blade of the pipe cutting circular saw passes through the movable end of the first height adjustment rod and extends inward; a second height adjustment rod is provided at the upper end of the second sliding seat, and the fixed end of the second height adjustment rod is fixedly connected to the second sliding seat; a mounting hole is opened on the side of the movable end of the second height adjustment rod, and an auxiliary cutting wheel is provided in the mounting hole.

[0007] Preferably, a telescopic cylinder is provided at one end of the base near the active rack, wherein the cylinder body of the telescopic cylinder is fixedly connected to the base through a fixed seat; a floating joint is fixedly connected to the top end of the piston rod of the telescopic cylinder, wherein a connecting block is provided at the other end of the floating joint; the connecting block is arranged above the first sliding seat, wherein the connecting block and the first sliding seat are fixedly connected by screws.

[0008] Preferably, a first guide rail slider is provided at the lower end of the first sliding seat, wherein a second guide rail slider is provided at the lower end of the second sliding seat; two sets of linear guide rails are symmetrically provided at the upper end of the base along its length direction, wherein the linear guide rails are respectively slidably connected to the first guide rail slider and the second guide rail slider.

[0009] Preferably, a telescopic support rod is provided between the first height adjustment rod and the second height adjustment rod, wherein both ends of the telescopic support rod are fixedly connected to the top ends of the first height adjustment rod and the second height adjustment rod respectively.

[0010] Preferably, a cavity is provided at the bottom of the storage platform, wherein the storage platform is arranged above the gear; a first avoidance hole is provided on the side of the storage platform close to the active rack, wherein a second avoidance hole is provided on the side of the storage platform close to the driven rack.

[0011] Preferably, two supporting rollers are provided at the upper end of the storage platform, wherein the two supporting rollers are spaced apart.

[0012] Preferably, the pipe rotating clamp includes a semicircular fixed ring and a movable ring, wherein the fixed ring and the movable ring are connected to form a circular ring with a clamping cavity; one end of the movable ring is hinged to the fixed ring, wherein the other end of the movable ring is clamped to the fixed ring.

[0013] Preferably, the fixed ring and the movable ring are provided with a plurality of mounting cylinders along their circumference, wherein each mounting cylinder is provided with a movable shaft; one end of the movable shaft is fixedly connected to the bottom of the inner cavity of the mounting cylinder through a spring, wherein the other end of the movable shaft is provided with a roller and extends into the clamping cavity.

[0014] Preferably, an armrest is provided at one end of the base, wherein the armrest is fixedly connected to the base via an oblique support rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes precise centering and clamping of PE pipes through the design of the centering clamping assembly and the meshing transmission of the gear, the active rack and the driven rack, effectively prevents deviation during the cutting process and improves the cutting accuracy; the first sliding seat and the second sliding seat are respectively adjusted in height by the first height adjustment rod and the second height adjustment rod, so that the pipe cutting circular saw and the auxiliary cutting wheel can adapt to PE pipes of different diameters without the need to replace the clamp, reducing the production cost and improving the versatility of the equipment; the telescopic support rod further enhances the stability between the first height adjustment rod and the second height adjustment rod, preventing shaking during the cutting process; the pipe rotating clamp realizes flexible clamping of PE pipes of different sizes through the combination of the fixed ring and the movable ring, and the design of the roller on the movable shaft. At the same time, the roller can also provide a certain rolling support during the clamping process, reducing damage to the pipe surface; it effectively solves the problem of PE pipe cutting, improves cutting accuracy, adaptability and efficiency, reduces operation difficulty and cost, and has significant technical progress and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the centering clamping assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the centering clamping assembly of the utility model;

[0019] Figure 4 This is a structural diagram of the utility model pipe rotating clamp;

[0020] Figure 5 It is a structural schematic diagram of the pipe cutting circular saw of the present utility model.

[0021] : Among them: 1. Base; 2. Universal wheel; 3. Centering clamping assembly; 301. Gear; 302. Active rack; 303. Driven rack; 304. First sliding seat; 305. Second sliding seat; 4. Storage table; 5. Pipe rotating fixture; 501. Fixed ring; 502. Movable ring; 503. Clamping cavity; 504. Mounting cylinder; 505. Movable shaft; 506. Roller; 6. First height adjustment rod; 7. Pipe cutting circular saw; 8. Second height adjustment rod; 9. Mounting hole; 10. Auxiliary cutting wheel; 11. Telescopic cylinder; 12. Fixed seat; 13. Floating joint; 14. Connecting block; 15. First guide rail slider; 16. Second guide rail slider; 17. Linear guide; 18. Telescopic support rod; 19. Cavity; 20. First avoidance hole; 21. Second avoidance hole; 22. Support roller; 23. Handrail; 24. Diagonal support rod. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings.

[0023] Please refer to Figures 1 to 5 To achieve the above objectives, the present invention provides the following technical solutions:

[0024] A cutting device for PE pipes, comprising a base 1, wherein a universal wheel 2 is provided at the bottom of the base 1; a centering clamping assembly 3 is provided above the base 1, wherein a storage platform 4 is provided above the centering clamping assembly 3; a pipe rotating clamp 5 is provided on one side of the centering clamping assembly 3, wherein the pipe rotating clamp 5 and the storage platform 4 are arranged side by side, and the lower end of the pipe rotating clamp 5 is fixedly connected to the base 1; the centering clamping assembly 3 includes a gear 301, wherein the gear 301 is arranged horizontally, and the lower end of the rotating shaft of the gear 301 is fixedly connected to the base 1; an active rack 302 and a driven rack 303 are respectively provided on both sides of the gear 301, wherein the active rack 302 and the driven rack 303 are respectively engaged with the gear 301 for transmission; the active rack 302 is away from the gear A first sliding seat 304 is provided at one end of the wheel 301, wherein a second sliding seat 305 is provided at the end of the driven rack 303 away from the gear 301; a first height adjustment rod 6 is provided at the upper end of the first sliding seat 304, wherein the fixed end of the first height adjustment rod 6 is fixedly connected to the first sliding seat 304; a pipe cutting circular saw 7 is fixedly installed on the outer side of the movable end of the first height adjustment rod 6, wherein the saw blade of the pipe cutting circular saw 7 passes through the movable end of the first height adjustment rod 6 and extends inward; a second height adjustment rod 8 is provided at the upper end of the second sliding seat 305, wherein the fixed end of the second height adjustment rod 8 is fixedly connected to the second sliding seat 305; a mounting hole 9 is opened on the side of the movable end of the second height adjustment rod 8, wherein an auxiliary cutting wheel 10 is provided in the mounting hole 9.

[0025] The operator first places the PE pipe to be cut on the storage table 4, ensures that one end of the PE pipe is close to the centering clamping assembly 3, and sets it in the pipe rotating clamp 5, starts the pipe rotating clamp 5, and makes the circular ring composed of the fixed ring 501 and the movable ring 502 tightly clamp one end of the PE pipe; then starts the centering clamping assembly 3, and the gear 301 starts to rotate. Since the active rack 302 and the driven rack 303 are respectively engaged with the gear 301 for transmission, when the gear 301 rotates, the active rack 302 and the driven rack 303 will move to the two sides of the gear 301 respectively; in this process, the first sliding seat 304 and the second sliding seat 305 will also move accordingly until they are respectively located on both sides of the PE pipe to achieve precise centering; according to the diameter of the PE pipe, the operator adjusts the movable ends of the first height adjustment rod 6 and the second height adjustment rod 8 respectively, so that the pipe cutting circular saw 7 and the auxiliary cutting wheel 10 are respectively located on the PE pipe. Above and to one side, and maintain an appropriate cutting distance; after adjusting the height, ensure that the saw blades or blades of the pipe cutting circular saw 7 and the auxiliary cutting wheel 10 are in good contact with the surface of the PE pipe, and prepare for the cutting operation; drive the PE pipe to rotate, and while the PE pipe is rotating, start the motor of the pipe cutting circular saw 7, so that the saw blade starts the cutting operation; at the same time, the auxiliary cutting wheel 10 plays a role in assisting cutting and keeping the cutting surface flat; after the cutting is completed, the operator adjusts the position of the first sliding seat 304 and the second sliding seat 305 by driving the centering clamping assembly 3 to return them to their initial positions; at the same time, it is also necessary to adjust the movable ends of the first height adjustment rod 6 and the second height adjustment rod 8 to make the pipe cutting circular saw 7 and the auxiliary cutting wheel 10 return to the preset height, waiting for the next cutting operation; during the whole process, the utility model has the advantages of simple operation, high cutting accuracy, strong adaptability, etc., and can meet the cutting needs of PE pipes of different diameters.

[0026] See also Figure 2 As an embodiment of the present utility model, a telescopic cylinder 11 is provided at one end of the base 1 close to the active rack 302, wherein the cylinder body of the telescopic cylinder 11 is fixedly connected to the base 1 through a fixed seat 12; the top end of the piston rod of the telescopic cylinder 11 is fixedly connected to a floating joint 13, wherein the other end of the floating joint 13 is provided with a connecting block 14; the connecting block 14 is arranged above the first sliding seat 304, wherein the connecting block 14 and the first sliding seat 304 are fixedly connected by screws.

[0027] In the above-described scheme, the telescopic cylinder 11 is installed on one end of the base 1 close to the active rack 302, wherein the cylinder body of the telescopic cylinder 11 is firmly mounted on the base 1 through the fixed seat 12. This installation method ensures the stability and reliability of the telescopic cylinder 11 during operation; the top end of the piston rod of the telescopic cylinder 11 is connected to a floating joint 13. The design of this floating joint 13 allows the piston rod to have a certain floating range when telescoping to adapt to the slight deviations or vibrations that may be encountered during the cutting process; the other end of the floating joint 13 is connected to the connecting block 14. This design can ensure that the telescopic action of the piston rod can be accurately transmitted to the connecting block 14; the connecting block 14 is arranged above the first sliding seat 304 and is fixedly connected to the first sliding seat 304 by screws. This connection method is not only stable, but also easy to adjust and maintain.

[0028] Before the cutting operation begins, the telescopic cylinder 11 is in a retracted state, and the piston rod is completely retracted into the cylinder body; at this time, the connecting block 14 and the first sliding seat 304 are in the initial position, ready for the subsequent centering, clamping and cutting operations; when the PE pipe is placed on the storage table 4, the telescopic cylinder 11 starts to work, and the telescopic cylinder 11 pushes the connecting block 14 to move through the piston rod, so that the connecting block 14 drives the first sliding seat 304 and the active rack 302 to move; because the active rack 302 and the driven rack 303 are respectively engaged with the gear 301, when the active rack 302 pushes the gear 301 to rotate, the driven rack 303 also moves synchronously, thereby driving the second sliding seat 305 to move; as the telescopic cylinder 11 is further extended, the first The first sliding seat 304 and the second sliding seat 305 move closer to each other, and drive the first height adjustment rod 6 and the second height adjustment rod 8 to move closer to the two sides of the PE pipe respectively; when moving to the specified position, the telescopic cylinder 11 remains in the extended state; then, the operator needs to adjust the height of the first height adjustment rod 6 and the second height adjustment rod 8 according to the diameter of the PE pipe, so that the pipe cutting circular saw 7 and the auxiliary cutting wheel 10 are respectively located on both sides of the PE pipe; when everything is ready, the pipe cutting circular saw 7 is driven to perform the cutting operation. When the pipe cutting circular saw 7 has completely cut through the PE pipe, the piston rod of the telescopic cylinder 11 begins to contract, driving the connecting block 14 and the first sliding seat 304 back to the initial position; at this time, the cutting operation is completed, and the device enters the reset state, ready for the next cutting operation.

[0029] Please refer to Figure 2 、 Figure 3 As an embodiment of the present utility model, a first guide rail slider 15 is provided at the lower end of the first sliding seat 304, wherein a second guide rail slider 16 is provided at the lower end of the second sliding seat 305; two sets of linear guide rails 17 are symmetrically provided at the upper end of the base 1 along its length direction, wherein the linear guide rails 17 are respectively slidably connected to the first guide rail slider 15 and the second guide rail slider 16.

[0030] In the above-described scheme, two sets of linear guide rails 17 are symmetrically installed at the upper end of the base 1 along its length direction, wherein the linear guide rails 17 provide a stable and precise moving path for the first sliding seat 304 and the second sliding seat 305; the lower end of the first sliding seat 304 is installed with a first guide rail slider 15 adapted to the linear guide rail 17, while the lower end of the second sliding seat 305 is installed with a second guide rail slider 16 adapted to the linear guide rail 17, and the first guide rail slider 15 and the second guide rail slider 16 are designed to be able to slide tightly and smoothly on the linear guide rail 17; the first sliding seat 304 and the second sliding seat 305 are closely matched with the linear guide rail 17 on the base 1 through the first guide rail slider 15 and the second guide rail slider 16, ensuring the stability and accuracy of the cutting operation. This design not only improves the cutting efficiency, but also reduces the operation difficulty and cost.

[0031] See also Figure 1 As an embodiment of the present invention, a telescopic support rod 18 is provided between the first height adjustment rod 6 and the second height adjustment rod 8, wherein both ends of the telescopic support rod 18 are fixedly connected to the top ends of the first height adjustment rod 6 and the second height adjustment rod 8 respectively.

[0032] In the above-described scheme, the telescopic support rod 18 is a rod with adjustable length, usually composed of a multi-section sleeved rod body. In this device, the two ends of the telescopic support rod 18 are fixedly connected to the top ends of the first height adjustment rod 6 and the second height adjustment rod 8, respectively, to form a stable support structure; the two ends of the telescopic support rod 18 are connected to the top ends of the first height adjustment rod 6 and the second height adjustment rod 8 by bolts, welding or other reliable fixing methods. This connection method ensures that the telescopic support rod 18 can remain stable when adjusting the height and will not fall off or shake; during the cutting process, the telescopic support rod 18 not only plays a role of stable support, but also can share the load borne by the first height adjustment rod 6 and the second height adjustment rod 8 to a certain extent, which helps to reduce the vibration and deformation caused by the cutting force and improve the cutting accuracy and stability.

[0033] See also Figure 2 As an embodiment of the present invention, a cavity 19 is opened at the bottom of the storage platform 4, wherein the storage platform 4 is arranged above the gear 301, and the cavity 19 is adapted to the gear 301; a first avoidance hole 20 is opened on the side of the storage platform 4 close to the active rack 302, wherein a second avoidance hole 21 is opened on the side of the storage platform 4 close to the driven rack 303.

[0034] In the above-described scheme, the storage table 4 is a platform in the cutting device for placing the PE pipe to be cut. It is located above the gear 301, which facilitates the centering and clamping operation of the PE pipe by the centering clamping assembly 3; a cavity 19 is provided at the bottom of the storage table 4. The design of this cavity 19 is mainly to reduce the weight of the storage table 4, while providing a certain space for installing the gear 301 and facilitating the linear guide 17 to pass through the storage table 4; in order not to affect the movement of the active rack 302 and the driven rack 303, the storage table 4 is provided with a first avoidance hole 20 on the side close to the active rack 302, and a second avoidance hole 21 on the side close to the driven rack 303, wherein the first avoidance hole 20 and the second avoidance hole 21 ensure that the active rack 302 and the driven rack 303 will not interfere with the storage table 4 during the movement, thereby ensuring the smooth progress of the cutting operation.

[0035] Please refer to Figure 1 、 Figure 2 As an embodiment of the present invention, two supporting rollers 22 are provided at the upper end of the storage table 4, wherein the two supporting rollers 22 are spaced apart.

[0036] In the above-described scheme, the two supporting rollers 22 arranged at the upper end of the storage table 4 are mainly used to support the PE pipe to be cut, so that it remains stable and facilitates the centering operation of the centering clamping assembly 3; at the same time, the rolling design of the supporting rollers 22 can reduce the friction resistance of the PE pipe during movement, thereby improving the convenience of operation; the two supporting rollers 22 are arranged at intervals on the upper end of the storage table 4. This design can ensure that the PE pipe can smoothly cross the two rollers when placed, and will not cause interference or deformation due to the rollers being too close; at the same time, the interval setting also helps the centering clamping assembly 3 to be evenly stressed when clamping the PE pipe, thereby improving the clamping effect.

[0037] See also Figure 4 As an embodiment of the present invention, the pipe rotating clamp 5 includes a semicircular fixed ring 501 and a movable ring 502, wherein the fixed ring 501 and the movable ring 502 are connected to form a circular ring with a clamping cavity 503; one end of the movable ring 502 is hinged to the fixed ring 501, wherein the other end of the movable ring 502 is clamped with the fixed ring 501; a plurality of mounting tubes 504 are provided along the circumference of the fixed ring 501 and the movable ring 502, wherein each mounting tube 504 is respectively provided with a movable shaft 505; one end of the movable shaft 505 is fixedly connected to the bottom of the inner cavity of the mounting tube 504 by a spring (not shown in the figure), wherein the other end of the movable shaft 505 is provided with a roller 506, and the roller 506 extends into the clamping cavity 503.

[0038] In the above-mentioned scheme, the pipe rotating clamp 5 is mainly composed of a semicircular fixed ring 501 and a movable ring 502, which are combined into a complete circular ring with a clamping cavity 503, and the clamping cavity 503 is used to accommodate and clamp the PE pipe to be processed; one end of the movable ring 502 is connected to the fixed ring 501 by a hinged manner, allowing the movable ring 502 to rotate within a certain range relative to the fixed ring 501, wherein the other end of the movable ring 502 is connected to the fixed ring 501 by a clamping mechanism (such as a buckle, a locking bolt, etc.), which is used to fix the position of the movable ring 502 when needed, thereby clamping the PE pipe; a plurality of mounting cylinders 504 are evenly distributed along the circumference of the fixed ring 501 and the movable ring 502, and each mounting cylinder 504 is provided with a movable shaft 505; the movable shaft 505 One end of the PE tube 505 is fixedly connected to the bottom of the inner cavity of the mounting cylinder 504 by a spring, and the other end is provided with a roller 506 and extends into the clamping cavity 503; the spring provides an outward elastic force for the roller 506, so that the roller 506 can fit closely to the surface of the PE tube; the operator places the PE tube to be cut in the clamping cavity 503 composed of the fixed ring 501 and the movable ring 502, and then the operator manually rotates the movable ring 502 so that the other end is aligned with the clamping mechanism of the fixed ring 501 and clamped. In this process, the movable shaft 505, under the action of the spring, pushes the roller 506 to fit closely to the outer surface of the PE tube, providing stable support and clamping force for the PE tube, facilitating subsequent cutting operations. This design not only improves processing efficiency and precision, but also reduces operation difficulty and cost.

[0039] See also Figure 1 As an embodiment of the present invention, an armrest 23 is provided at one end of the base 1 , wherein the armrest 23 is fixedly connected to the base 1 through a diagonal support rod 24 .

[0040] In the above-described scheme, the base 1 is the supporting foundation of the entire device or equipment, which provides a stable and sturdy platform, wherein the base 1 is usually made of a sturdy material (such as steel, aluminum alloy, etc.) to ensure its load-bearing capacity and stability; the armrest 23 is located at one end of the base 1, providing the operator with a convenient operation and support point, wherein the armrest 23 is usually designed to be ergonomically shaped and sized to ensure that the operator can remain comfortable and stable during long-term operation. The surface of the armrest 23 may be covered with anti-slip material to increase safety and stability during operation; the armrest 23 is fixedly connected to the base 1 through a diagonal support rod 24, wherein the diagonal support rod 24 is usually designed to be a sturdy and stable structure, and the base 1 can be pushed to move through the armrest 23, thereby improving the flexibility of the movement of the device.

[0041] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A cutting device for PE pipes, comprising a base (1), wherein a universal wheel (2) is provided at the bottom of the base (1); characterized in that: A centering clamping assembly (3) is provided above the base (1), wherein a storage platform (4) is provided above the centering clamping assembly (3); a pipe rotating clamp (5) is provided on one side of the centering clamping assembly (3), wherein the pipe rotating clamp (5) and the storage platform (4) are arranged side by side, and the lower end of the pipe rotating clamp (5) is fixedly connected to the base (1); the centering clamping assembly (3) includes a gear (301), wherein the gear (301) is arranged horizontally, and the lower end of the rotating shaft of the gear (301) is fixedly connected to the base (1); an active rack (302) and a driven rack (303) are respectively provided on both sides of the gear (301), wherein the active rack (302) and the driven rack (303) are respectively engaged with the gear (301) for transmission; a first sliding seat is provided at the end of the active rack (302) away from the gear (301) (304), wherein a second sliding seat (305) is provided at one end of the driven rack (303) away from the gear (301); a first height adjustment rod (6) is provided at the upper end of the first sliding seat (304), wherein the fixed end of the first height adjustment rod (6) is fixedly connected to the first sliding seat (304); a pipe cutting circular saw (7) is fixedly installed on the outer side of the movable end of the first height adjustment rod (6), wherein the saw blade of the pipe cutting circular saw (7) passes through the movable end of the first height adjustment rod (6) and extends inward; a second height adjustment rod (8) is provided at the upper end of the second sliding seat (305), wherein the fixed end of the second height adjustment rod (8) is fixedly connected to the second sliding seat (305); a mounting hole (9) is opened on the side of the movable end of the second height adjustment rod (8), wherein an auxiliary cutting wheel (10) is provided in the mounting hole (9).

2. A cutting device for PE pipe according to claim 1, characterized in that: A telescopic cylinder (11) is provided at one end of the base (1) close to the active rack (302), wherein the cylinder body of the telescopic cylinder (11) is fixedly connected to the base (1) via a fixed seat (12); a floating joint (13) is fixedly connected to the top end of the piston rod of the telescopic cylinder (11), wherein a connecting block (14) is provided at the other end of the floating joint (13); the connecting block (14) is arranged above the first sliding seat (304), wherein the connecting block (14) and the first sliding seat (304) are fixedly connected via screws.

3. A cutting device for PE pipe according to claim 1, characterized in that: The lower end of the first sliding seat (304) is provided with a first guide rail slider (15), wherein the lower end of the second sliding seat (305) is provided with a second guide rail slider (16); the upper end of the base (1) is symmetrically provided with two groups of linear guide rails (17) along its length direction, wherein the linear guide rails (17) are respectively slidably connected to the first guide rail slider (15) and the second guide rail slider (16).

4. A cutting device for PE pipe according to claim 1, characterized in that: A telescopic support rod (18) is provided between the first height adjustment rod (6) and the second height adjustment rod (8), wherein both ends of the telescopic support rod (18) are fixedly connected to the top ends of the first height adjustment rod (6) and the second height adjustment rod (8), respectively.

5. A cutting device for PE pipe according to claim 1, characterized in that: A cavity (19) is provided at the bottom of the storage platform (4), wherein the storage platform (4) is arranged above the gear (301); a first avoidance hole (20) is provided on the side of the storage platform (4) close to the active rack (302), wherein a second avoidance hole (21) is provided on the side of the storage platform (4) close to the driven rack (303).

6. A cutting device for PE pipe according to claim 5, characterized in that: Two supporting rollers (22) are provided at the upper end of the storage platform (4), wherein the two supporting rollers (22) are arranged at intervals.

7. A cutting device for PE pipe according to claim 1, characterized in that: The pipe rotating clamp (5) comprises a semicircular fixed ring (501) and a movable ring (502), wherein the fixed ring (501) and the movable ring (502) are connected to form a circular ring with a clamping cavity (503); one end of the movable ring (502) is hinged to the fixed ring (501), and the other end of the movable ring (502) is clamped to the fixed ring (501).

8. A cutting device for PE pipe according to claim 7, characterized in that: A plurality of mounting cylinders (504) are provided on the fixed ring (501) and the movable ring (502) along their circumferences, wherein each mounting cylinder (504) is provided with a movable shaft (505); one end of the movable shaft (505) is fixedly connected to the bottom of the inner cavity of the mounting cylinder (504) via a spring, wherein the other end of the movable shaft (505) is provided with a roller (506) and extends into the clamping cavity (503).

9. A cutting device for PE pipe according to claim 1, characterized in that: One end of the base (1) is provided with a handrail (23), wherein the handrail (23) is fixedly connected to the base (1) via an oblique support rod (24).

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