A reliable plastic pipe rotary cutter
Patent Information
- Application Number
- CN202521429526.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-08
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2036-07-08
AI Technical Summary
[0004]但是现有的塑料管道专用旋切机不利于对不同口径的塑料管道进行固定加工，而且在加工的过程中会产生大量的废屑，其废屑飞溅容易造成工作人员损伤
[0014]与现有技术相比本实用新型的有益效果为：将塑料管通过两组夹紧装置进行夹紧固定，然后打开移动装置，移动装置则带动切割装置移动，当切割装置移动至塑料管需要切割位置后，打开防护装置，防护装置则对顶板内的塑料管进行封闭，之后打开切割装置和升降装置，升降装置则带动切割装置向下运动，当切割装置下降至指定高度后，打开转动装置，转动装置则带动切割装置环形转动，从而使切割装置对塑料管进行切割，通过设置此设备，便于对不同口径的塑料管进行夹紧固定，而且可以避免塑料管在切割时产生的碎屑飞溅，提高了其安全性。
Smart Images
Figure CN224826769U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic pipe processing, and in particular to a reliable plastic pipe rotary cutting machine. Background Technology
[0002] Plastic pipes are a general term for pipes made of plastic. They are favored by the pipeline engineering industry because they are lightweight, hygienic and safe, have low water flow resistance, save energy and metal, improve the living environment, have a long service life, and are safe and convenient.
[0003] A plastic pipe rotary cutting machine is a type of mechanical equipment specifically designed for processing plastic pipes. It is mainly used to cut or rotary cut plastic pipes into sheets according to the required length or shape.
[0004] However, existing rotary cutting machines for plastic pipes are not suitable for fixing plastic pipes of different diameters, and a large amount of waste is generated during the processing, which can easily cause injury to workers when it flies. Summary of the Invention
[0005] To solve the above-mentioned technical problems, this utility model provides a reliable plastic pipe rotary cutter that, by setting this device, facilitates the clamping and fixing of plastic pipes of different diameters, and can avoid the splashing of debris generated during the cutting of plastic pipes, thereby improving its safety.
[0006] This utility model discloses a reliable plastic pipe veneer cutting machine, comprising a top plate, four sets of support legs, two sets of clamping devices, a moving device, a cutting device, a rotating device, a lifting device, and a protective device. The four sets of support legs are respectively installed on the left front side, left rear side, right front side, and right rear side of the bottom end of the top plate. The two sets of clamping devices are respectively installed on the left and right sides of the top end of the top plate. The moving device is installed on the top plate, and a rotating device is connected to the moving device. The lifting device, cutting device, and rotating device are connected to each other. The protective device is installed at the front end and rear end of the top plate.
[0007] Preferably, the clamping device includes two sets of upright plates, two sets of first electric push rods, two sets of movable plates, four sets of telescopic tubes, four sets of telescopic rods, four sets of springs, and two sets of arc-shaped clamping plates. The two sets of upright plates are symmetrically installed on the left side of the top of the top plate. The two sets of first electric push rods are respectively installed on the outer ends of the two sets of upright plates. The output ends of the two sets of first electric push rods pass through the two sets of upright plates and are connected to the outer ends of the two sets of movable plates. The four sets of telescopic tubes are respectively installed on the upper and lower sides of the inner ends of the two sets of movable plates. The four sets of telescopic rods are respectively installed on the upper and lower sides of the outer ends of the two sets of arc-shaped clamping plates. The four sets of telescopic rods are slidably connected to the four sets of telescopic tubes. The four sets of springs are respectively sleeved on the four sets of telescopic rods.
[0008] Preferably, the moving device includes a moving block, a screw, a motor, a moving base, and a moving ring. A groove is provided in the middle of the top of the top plate, and the moving block slides in the groove. The left end of the screw is rotatably installed at the left end of the groove in the top plate, and the right end of the screw extends through the top plate to its right side. A threaded hole is provided in the middle of the moving block, and the screw is threadedly connected to the moving block. The moving block is installed at the bottom of the moving base, and the moving ring is installed at the top of the moving base. A rotating device is installed on the moving ring, and the motor is installed at the right end of the top plate. The motor output end and the right end of the screw are both provided with a first gear, and the two sets of first gears mesh with each other.
[0009] Preferably, the cutting device includes a gantry frame, a rotating shaft, and a cutting disc. The top of the gantry frame is connected to a lifting device. The rotating shaft is rotatably installed inside the gantry frame. The cutting disc is installed on the rotating shaft. The right end of the rotating shaft passes through the right end of the gantry frame and extends to its outside. The right end of the rotating shaft is connected to a rotating device.
[0010] Preferably, the rotating device includes a dual-output shaft motor, a slider, a connecting plate, a second gear, a gear ring, a first bevel gear, and a second bevel gear. The gear ring is installed at the right end of the moving ring, and the second gear meshes with the gear ring. An annular groove is provided inside the moving ring, and the slider is slidably connected to the annular groove inside the moving ring. The slider is installed on the top left side of the connecting plate, and the dual-output shaft motor is installed on the bottom right side of the connecting plate. The upper output end of the dual-output shaft motor passes through the connecting plate and is connected to the second gear. A lifting device is installed on the bottom left side of the connecting plate, and the lower output end of the dual-output shaft motor is connected to the lifting device. The first bevel gear is installed on the lifting device, and the second bevel gear is installed on the right end of the rotating shaft. The first bevel gear meshes with the second bevel gear.
[0011] Preferably, the lifting device includes a second electric push rod and a third electric push rod. The second electric push rod is installed on the lower output end of the dual-output shaft motor, and the output end of the second electric push rod is connected to the top of the first bevel gear. The third electric push rod is installed on the left side of the bottom end of the connecting plate, and the output end of the third electric push rod is connected to the top of the gantry frame.
[0012] Preferably, the protective device includes two sets of protective covers, four sets of fixing plates, and four sets of fourth electric push rods. The two sets of protective covers are rotatably installed on the upper side of the front and rear ends of the top plate, respectively. The four sets of fixing plates are respectively installed on the outer ends of the four sets of support legs. Fixing seats are provided on the left and right sides of the bottom of the two sets of protective covers and on the top of the four sets of fixing plates. The four sets of fourth electric push rods are rotatably installed on the four sets of fixing seats on the lower side. The output ends of the four sets of fourth electric push rods are rotatably connected to the four sets of fixing seats on the two sets of protective covers. Semicircular holes are provided in the middle of the left and right ends of the two sets of protective covers.
[0013] Preferably, the inner end of the arc-shaped clamp is provided with an anti-slip pad.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the plastic tube is clamped and fixed by two sets of clamping devices, then the moving device is opened, which drives the cutting device to move. When the cutting device moves to the position where the plastic tube needs to be cut, the protective device is opened, which then seals the plastic tube in the top plate. After that, the cutting device and the lifting device are opened, and the lifting device drives the cutting device to move downward. When the cutting device descends to the specified height, the rotating device is opened, which drives the cutting device to rotate in a circle, thereby cutting the plastic tube. By setting this device, it is convenient to clamp and fix plastic tubes of different diameters, and it can avoid the flying of debris generated during the cutting of the plastic tube, thus improving its safety. Attached Figure Description
[0015] Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a second-view structural schematic diagram of the present invention; Figure 3 yes Figure 1 A magnified structural diagram of A in the middle; Figure 4 yes Figure 1 A magnified structural diagram of B in the diagram; Figure 5 yes Figure 2 A magnified structural diagram of C; The following are labels in the attached diagram: 1. Top plate; 2. Support leg; 3. Vertical plate; 4. First electric push rod; 5. Moving plate; 6. Telescopic tube; 7. Telescopic rod; 8. Spring; 9. Arc-shaped clamp; 10. Moving block; 11. Screw; 12. First gear; 13. Motor; 14. Portal frame; 15. Rotating shaft; 16. Cutting disc; 17. Moving seat; 18. Moving ring; 19. Dual output shaft motor; 20. Slider; 21. Connecting plate; 22. Second gear; 23. Gear ring; 24. Second electric push rod; 25. First bevel gear; 26. Second bevel gear; 27. Third electric push rod; 28. Protective cover; 29. Fixing plate; 30. Fixing seat; 31. Fourth electric push rod. Detailed Implementation
[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0017] like Figures 1 to 5As shown, a reliable plastic pipe veneer cutting machine of this utility model includes a top plate 1, four sets of support legs 2, two sets of clamping devices, a moving device, a cutting device, a rotating device, a lifting device, and a protective device. The four sets of support legs 2 are respectively installed on the left front side, left rear side, right front side, and right rear side of the bottom end of the top plate 1. The two sets of clamping devices are respectively installed on the left and right sides of the top end of the top plate 1. The moving device is installed on the top plate 1, and the rotating device is connected to the moving device. The lifting device, the cutting device, and the rotating device are connected to each other. The protective device is installed at the front end and rear end of the top plate 1. The plastic pipe is clamped and fixed by two sets of clamping devices. Then, the moving device is opened, which drives the cutting device to move. When the cutting device moves to the position where the plastic pipe needs to be cut, the protective device is opened, which closes the plastic pipe in the top plate 1. Then, the cutting device and the lifting device are opened. The lifting device drives the cutting device to move downward. When the cutting device descends to the designated height, the rotating device is opened, which drives the cutting device to rotate in a circle, thereby cutting the plastic pipe. By setting up this device, it is easy to clamp and fix plastic pipes of different diameters, and it can avoid the flying of debris generated during the cutting of plastic pipes, thus improving its safety.
[0018] As a preferred embodiment of the above, the clamping device includes two sets of upright plates 3, two sets of first electric push rods 4, two sets of moving plates 5, four sets of telescopic tubes 6, four sets of telescopic rods 7, four sets of springs 8, and two sets of arc-shaped clamping plates 9. The two sets of upright plates 3 are symmetrically installed on the left side of the top of the top plate 1. The two sets of first electric push rods 4 are respectively installed on the outer ends of the two sets of upright plates 3. The output ends of the two sets of first electric push rods 4 pass through the two sets of upright plates 3 and are connected to the outer ends of the two sets of moving plates 5. The four sets of telescopic tubes 6 are respectively installed on the upper and lower sides of the inner ends of the two sets of moving plates 5. The four sets of telescopic rods 7 are respectively installed on the upper and lower sides of the outer ends of the two sets of arc-shaped clamping plates 9. The four sets of telescopic rods 7 are slidably connected to the four sets of telescopic tubes 6. The four sets of springs 8 are respectively sleeved on the four sets of telescopic rods 7. By setting up a vertical plate 3, a first electric push rod 4, a moving plate 5, a telescopic tube 6, a telescopic rod 7, a spring 8, and an arc-shaped clamping plate 9, the plastic tube is placed between the four sets of arc-shaped clamping plates 9 and passes through the moving device. Then, the four sets of first electric push rods 4 are opened, which in turn drive the four sets of moving plates 5 to move inward. The four sets of moving plates 5 in turn drive the four sets of arc-shaped clamping plates 9 to move inward. Under the action of the four sets of telescopic rods 7, the four sets of arc-shaped clamping plates 9 adaptively clamp the plastic tube, thus enabling the plastic tube to be clamped in an adaptive manner for different diameters.
[0019] As a preferred embodiment of the above, the moving device includes a moving block 10, a screw 11, a motor 13, a moving seat 17, and a moving ring 18. A groove is provided in the middle of the top of the top plate 1, and the moving block 10 slides in the groove of the top plate 1. The left end of the screw 11 is rotatably installed at the left end of the groove of the top plate 1, and the right end of the screw 11 extends through the top plate 1 to its right side. A threaded hole is provided in the middle of the moving block 10, and the screw 11 is threadedly connected to the moving block 10. The moving block 10 is installed at the bottom of the moving seat 17, and the moving ring 18 is installed at the top of the moving seat 17. A rotating device is installed on the moving ring 18, and the motor 13 is installed at the right end of the top plate 1. The output end of the motor 13 and the right end of the screw 11 are both provided with a first gear 12, and the two sets of first gears 12 mesh with each other. By setting up a moving block 10, a screw 11, a first gear 12, a motor 13, a moving seat 17, and a moving ring 18, the motor 13 is turned on, which causes the two sets of first gears 12 to mesh. The rear first gear 12 drives the screw 11 to rotate, and the screw 11 is threadedly connected to the moving block 10. The moving block 10 slides in the groove of the top plate 1. At the same time, the moving block 10 drives the cutting device to move through the moving seat 17 and the moving ring 18, thus moving the cutting device to the position where the plastic tube needs to be cut.
[0020] As a preferred embodiment of the above, the cutting device includes a gantry frame 14, a rotating shaft 15 and a cutting disc 16. The top of the gantry frame 14 is connected to a lifting device. The rotating shaft 15 is rotatably installed inside the gantry frame 14. The cutting disc 16 is installed on the rotating shaft 15. The right end of the rotating shaft 15 passes through the right end of the gantry frame 14 and extends to its outside. The right end of the rotating shaft 15 is connected to a rotating device. By setting up a gantry frame 14, a rotating shaft 15, and a cutting disc 16, the rotating device drives the rotating shaft 15 to rotate, which in turn drives the cutting disc 16 to rotate, and the cutting disc 16 cuts the plastic pipe, thus playing the role of cutting the plastic pipe.
[0021] As a preferred embodiment of the above, the rotating device includes a dual-output shaft motor 19, a slider 20, a connecting plate 21, a second gear 22, a gear ring 23, a first bevel gear 25, and a second bevel gear 26. The gear ring 23 is installed at the right end of the moving ring 18, and the second gear 22 meshes with the gear ring 23. An annular groove is provided inside the moving ring 18, and the slider 20 is slidably connected to the annular groove inside the moving ring 18. The slider 20 is installed on the top left side of the connecting plate 21, and the dual-output shaft motor 19 is installed on the bottom right side of the connecting plate 21. The upper output end of the dual-output shaft motor 19 passes through the connecting plate 21 and is connected to the second gear 22. The lifting device is installed on the bottom left side of the connecting plate 21, and the lower output end of the dual-output shaft motor 19 is connected to the lifting device. The first bevel gear 25 is installed on the lifting device, and the second bevel gear 26 is installed at the right end of the rotating shaft 15. The first bevel gear 25 and the second bevel gear 26 mesh. By setting up a dual-output shaft motor 19, a slider 20, a connecting plate 21, a second gear 22, a gear ring 23, a first bevel gear 25, and a second bevel gear 26, when the dual-output shaft motor 19 is turned on, the dual-output shaft motor 19 drives the second gear 22 and the lifting device to rotate. The lifting device then meshes the first bevel gear 25 with the second bevel gear 26. The second bevel gear 26 drives the rotating shaft 15 to rotate, and the rotating shaft 15 drives the cutting disc 16 to rotate. At the same time, the second gear 22 meshes with the gear ring 23, and the slider 20 slides within the moving ring 18. The cutting disc 16 rotates in a ring around the plastic tube, thereby cutting the plastic tube. The function of driving the cutting disc 16 to rotate around the plastic tube is to achieve the cutting.
[0022] As a preferred embodiment of the above, the lifting device includes a second electric push rod 24 and a third electric push rod 27. The second electric push rod 24 is installed on the lower output end of the dual output shaft motor 19, and the output end of the second electric push rod 24 is connected to the top of the first bevel gear 25. The third electric push rod 27 is installed on the left side of the bottom end of the connecting plate 21, and the output end of the third electric push rod 27 is connected to the top of the gantry frame 14. By setting a second electric push rod 24 and a third electric push rod 27, the third electric push rod 27 is opened, which drives the gantry frame 14 to move downward. When the cutting disc 16 moves to the designated position, the second electric push rod 24 is opened, which drives the first bevel gear 25 to move downward. When the first bevel gear 25 meshes with the second bevel gear 26, the second electric push rod 24 is closed, which drives the cutting disc 16 to move downward and contact the plastic tube.
[0023] As a preferred embodiment of the above, the protective device includes two sets of protective covers 28, four sets of fixing plates 29, and four sets of fourth electric push rods 31. The two sets of protective covers 28 are rotatably installed on the upper side of the front end and the rear end of the top plate 1, respectively. The four sets of fixing plates 29 are respectively installed on the outer ends of the four sets of support legs 2. Fixing seats 30 are provided on the left and right sides of the bottom end of the two sets of protective covers 28 and the top of the four sets of fixing plates 29. The four sets of fourth electric push rods 31 are rotatably installed on the four sets of fixing seats 30 on the lower side. The output ends of the four sets of fourth electric push rods 31 are rotatably connected to the four sets of fixing seats 30 on the two sets of protective covers 28. Semicircular holes are provided in the middle of the left and right ends of the two sets of protective covers 28. By setting up a protective cover 28, a fixing plate 29, a fixing base 30, and a fourth electric push rod 31, opening the four sets of fourth electric push rods 31 will push the two sets of protective covers 28 to snap inward, so that the plastic tube is located inside the two sets of protective covers 28 for cutting, which can prevent the debris generated during the cutting of the plastic tube from flying and injuring the staff.
[0024] As a preferred embodiment of the above embodiment, the inner end of the arc-shaped clamping plate 9 is provided with an anti-slip pad; This can increase the friction between the plastic tube and the arc-shaped clamp 9, thereby improving the clamping stability of the plastic tube by the arc-shaped clamp 9.
[0025] This utility model discloses a reliable plastic pipe veneer cutting machine. During operation, the plastic pipe is first placed between four sets of arc-shaped clamping plates 9 and passed through a moving ring 18. Then, the four sets of first electric push rods 4 are activated, causing four sets of moving plates 5 to move inward. These moving plates 5, in turn, move the four sets of arc-shaped clamping plates 9 inward, which, under the action of four sets of telescopic rods 7, adaptively clamp the plastic pipe. Next, the motor 13 is activated, causing two sets of first gears 12 to mesh. The rear first gear 12 drives the screw 11 to rotate, and the screw 11 is threadedly connected to the moving block 10. The moving block 10 slides within the groove of the top plate 1. Simultaneously, the moving block 10 drives the cutting disc 16 to move via the moving seat 17 and the moving ring 18. When the cutting disc 16 reaches the position where the plastic pipe needs to be cut, the motor 13 is turned off, and the four sets of fourth electric push rods 31 are activated. These four sets of fourth electric push rods 31 then push the two sets of protective covers 2. The 8-pin engages inward to seal the plastic tube inside the top plate 1. Then, the third electric push rod 27 is opened, which drives the gantry frame 14 to move downward. When the cutting disc 16 moves to the designated position, the second electric push rod 24 is opened, which drives the first bevel gear 25 to move downward. When the first bevel gear 25 meshes with the second bevel gear 26, the second electric push rod 24 is closed. Then, the dual output shaft motor 19 is opened, which drives the second gear 22 and the second electric push rod 24 to rotate. The second electric push rod 24 causes the first bevel gear 25 to mesh with the second bevel gear 26. The second bevel gear 26 drives the rotating shaft 15 to rotate, which in turn drives the cutting disc 16 to rotate. At the same time, the second gear 22 meshes with the gear ring 23, and the slider 20 slides within the moving ring 18. The cutting disc 16 rotates in a ring around the plastic tube, thus cutting the plastic tube.
[0026] This utility model discloses a reliable plastic pipe veneer cutting machine. Its installation, connection, or setting methods are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented. The first electric push rod 4, motor 13, dual output shaft motor 19, second electric push rod 24, third electric push rod 27, and fourth electric push rod 31 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual.
[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A reliable plastic pipe veneer cutting machine, characterized in that, It includes a top plate (1), four sets of support legs (2), two sets of clamping devices, a moving device, a cutting device, a rotating device, a lifting device, and a protective device. The four sets of support legs (2) are respectively installed on the left front side, left rear side, right front side, and right rear side of the bottom end of the top plate (1). The two sets of clamping devices are respectively installed on the left and right sides of the top end of the top plate (1). The moving device is installed on the top plate (1). The rotating device is connected to the moving device. The lifting device, cutting device, and rotating device are connected to each other. The protective device is installed at the front end and rear end of the top plate (1).
2. A reliable plastic pipe veneer cutting machine as described in claim 1, characterized in that, The clamping device includes two sets of upright plates (3), two sets of first electric push rods (4), two sets of moving plates (5), four sets of telescopic tubes (6), four sets of telescopic rods (7), four sets of springs (8) and two sets of arc-shaped clamps (9). The two sets of upright plates (3) are symmetrically installed on the left side of the top of the top plate (1). The two sets of first electric push rods (4) are respectively installed on the outer ends of the two sets of upright plates (3). The output ends of the two sets of first electric push rods (4) pass through the two sets of upright plates (3) and are connected to the outer ends of the two sets of moving plates (5). The four sets of telescopic tubes (6) are respectively installed on the upper and lower sides of the inner ends of the two sets of moving plates (5). The four sets of telescopic rods (7) are respectively installed on the upper and lower sides of the outer ends of the two sets of arc-shaped clamps (9). The four sets of telescopic rods (7) are slidably connected to the four sets of telescopic tubes (6). The four sets of springs (8) are respectively sleeved on the four sets of telescopic rods (7).
3. A reliable plastic pipe veneer cutting machine as described in claim 2, characterized in that, The moving device includes a moving block (10), a screw (11), a motor (13), a moving seat (17), and a moving ring (18). A groove is provided in the middle of the top of the top plate (1). The moving block (10) slides in the groove of the top plate (1). The left end of the screw (11) is rotatably installed at the left end of the groove of the top plate (1). The right end of the screw (11) passes through the top plate (1) and extends to its right side. A threaded hole is provided in the middle of the moving block (10). The screw (11) is threadedly connected to the moving block (10). The moving block (10) is installed at the bottom of the moving seat (17). The moving ring (18) is installed at the top of the moving seat (17). A rotating device is installed on the moving ring (18). The motor (13) is installed at the right end of the top plate (1). The output end of the motor (13) and the right end of the screw (11) are both provided with a first gear (12). The two sets of first gears (12) mesh with each other.
4. A reliable plastic pipe veneer cutting machine as described in claim 3, characterized in that, The cutting device includes a gantry frame (14), a rotating shaft (15), and a cutting disc (16). The top of the gantry frame (14) is connected to a lifting device. The rotating shaft (15) is rotatably installed inside the gantry frame (14). The cutting disc (16) is installed on the rotating shaft (15). The right end of the rotating shaft (15) passes through the right end of the gantry frame (14) and extends to its outside. The right end of the rotating shaft (15) is connected to a rotating device.
5. A reliable plastic pipe veneer cutting machine as described in claim 4, characterized in that, The rotating device includes a dual-output shaft motor (19), a slider (20), a connecting plate (21), a second gear (22), a gear ring (23), a first bevel gear (25), and a second bevel gear (26). The gear ring (23) is installed on the right end of the moving ring (18), and the second gear (22) meshes with the gear ring (23). An annular groove is provided inside the moving ring (18), and the slider (20) is slidably connected to the annular groove inside the moving ring (18). The slider (20) is installed on the top left of the connecting plate (21). On the side, a dual-output shaft motor (19) is installed on the right side of the bottom end of the connecting plate (21). The upper output end of the dual-output shaft motor (19) passes through the connecting plate (21) and is connected to the second gear (22). The lifting device is installed on the left side of the bottom end of the connecting plate (21). The lower output end of the dual-output shaft motor (19) is connected to the lifting device. The first bevel gear (25) is installed on the lifting device. The second bevel gear (26) is installed on the right end of the rotating shaft (15). The first bevel gear (25) and the second bevel gear (26) mesh with each other.
6. A reliable plastic pipe veneer cutting machine as described in claim 5, characterized in that, The lifting device includes a second electric push rod (24) and a third electric push rod (27). The second electric push rod (24) is installed on the lower output end of the dual output shaft motor (19). The output end of the second electric push rod (24) is connected to the top of the first bevel gear (25). The third electric push rod (27) is installed on the left side of the bottom end of the connecting plate (21). The output end of the third electric push rod (27) is connected to the top of the gantry frame (14).
7. A reliable plastic pipe veneer cutting machine as described in claim 6, characterized in that, The protective device includes two sets of protective covers (28), four sets of fixing plates (29) and four sets of fourth electric push rods (31). The two sets of protective covers (28) are rotatably installed on the upper side of the front and rear ends of the top plate (1). The four sets of fixing plates (29) are respectively installed on the outer ends of the four sets of support legs (2). Fixing seats (30) are provided on the left and right sides of the bottom end of the two sets of protective covers (28) and the top of the four sets of fixing plates (29). The four sets of fourth electric push rods (31) are rotatably installed on the four sets of fixing seats (30) on the lower side. The output end of the four sets of fourth electric push rods (31) is rotatably connected to the four sets of fixing seats (30) on the two sets of protective covers (28). Semicircular holes are provided in the middle of the left and right ends of the two sets of protective covers (28).
8. A reliable plastic pipe veneer cutting machine as described in claim 7, characterized in that, The inner end of the arc-shaped clamp (9) is provided with an anti-slip pad.