Movable polyethylene outer protection pipe cutting device

Abstract

The utility model relates to the field of cutting devices, in particular to a movable polyethylene outer protection pipe cutting device which comprises a cutting table, a cutting groove, a machine frame, a cutting machine, a movable table, a horizontal part, an inclined straight part, idler wheels, a cleaning brush, a bottom support, a clamping and fixing frame, a fastening end, an anchoring assembly part and a pipe pushing frame. According to the utility model, the original fixed cutting machine is improved into equipment for cutting the polyethylene outer protection pipes through the horizontal movement of the moving table, and the five polyethylene outer protection pipes can be cut at one time by matching with the bottom support and the clamping and fixing frame for fixing the five polyethylene outer protection pipes at one time; according to the polyethylene outer protection pipe cutting machine, the cleaning brush can be used for automatically cleaning scraps scattered on the support during cutting, compared with an original cutting machine, the cutting machining efficiency is greatly improved, and the problems that according to existing polyethylene outer protection pipe field cutting equipment, one-by-one machining needs to be conducted for multiple times, work such as cutting table cleaning and pipeline in-place fixing is needed, and the cutting efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the field of cutting devices, in particular to a mobile polyethylene outer protective pipe cutting device. Background Art

[0002] Cable outer protective tube is a material frequently used for installing cables indoors or outdoors individually or in bundles. Its main purpose is to protect the cable structure and prevent the cable sheath from being contaminated or damaged. In order to adapt to the bending of the cables during laying, the outer protective tube itself needs a certain flexibility and space for bending and deformation, so the cable outer protective tube is mostly made of polyethylene and other materials.

[0003] The existing polyethylene outer protective pipes are generally of standard length of 6m. Due to different installation and use requirements, the outer protective pipes often need to be processed and cut for the second time on site. However, the existing on-site cutting equipment can generally only perform fixed cutting on a single polyethylene outer protective pipe. Moreover, the polyethylene outer protective pipe is different from other pipes. During cutting, a large amount of polyethylene debris will be accumulated on the cutting platform. After each cutting, another pipe is replaced for repeated operations. This process involves multiple cleaning of the cutting platform, positioning, fixing, and cutting of the outer protective pipe. The cutting efficiency is relatively low, which is very unfavorable for situations where a large number of pipes need to be cut.

[0004] Therefore, in view of the fact that the existing on-site cutting equipment for polyethylene outer protective pipes requires multiple cleaning of the cutting table and fixing of the pipes in place, which results in low cutting efficiency, a device can be designed for centrally fixing and synchronously cutting multiple polyethylene outer protective pipes. The cutting table can be automatically cleaned during cutting, greatly improving the cutting efficiency. Utility Model Content

[0005] In order to overcome the problem that the existing polyethylene outer protective pipe on-site cutting equipment needs to perform multiple cleaning of the cutting table and pipe positioning and fixing for each pipe, the cutting efficiency is low.

[0006] The technical scheme of the utility model is: a mobile polyethylene outer protective pipe cutting device, including a cutting table, a cutting groove, a frame and a cutting machine, a mobile table, a horizontal part, an oblique straight part, a roller, a cleaning brush, a bottom bracket, a clamping frame, a fastening end, an anchoring assembly and a pipe pushing frame; a cutting groove is opened in the middle of the cutting table, the cutting machine is located above the cutting groove, two supports are fixedly installed on the upper end of the cutting table, the supports are composed of a horizontal part and an oblique straight part, the lower ends of the two oblique straight parts are respectively connected to the left and right side edges of the cutting groove, 5 polyethylene outer protective pipes arranged side by side are placed above the horizontal parts of the two supports, and a notch adapted to the support is arranged at the lower end of the mobile table, and a notch is arranged in the notch. It is equipped with a roller that rolls along the surface of the inclined straight part and a cleaning brush that is driven to rotate by a motor. Two bases are symmetrically arranged on the upper end of the cutting table. One end of the base is movably connected to a fixing frame through a rotating shaft. A fastening end is arranged between the other end of the base and the fixing frame. Five arc-shaped recesses that are adapted to the outer diameter of the polyethylene outer protective tube are arranged on the base and the fixing frame. The fixing frame rotates downward and closes with the base to press and fix the five polyethylene outer protective tubes. An anchoring assembly is arranged between the base and the cutting table. A triangular pipe pushing rack is installed at the front end of the mobile table. The pipe pushing rack is located above the support and the middle of the front end of the pipe pushing rack is on the same horizontal axis as the cutting point of the polyethylene outer protective tube.

[0007] Preferably, after the base bracket is installed on the cutting table through the anchor assembly, 5 polyethylene outer protective tubes are taken out and placed one by one in the recesses on the base bracket, and then the fixing frame is rotated to close with the base bracket. After the fastening end is fixed, the 5 polyethylene outer protective tubes are locked at one time, and then the cutting machine is started, and the frame is pushed to move to one side of the polyethylene outer protective tube by rolling the roller on the oblique straight part of the support to cut the polyethylene outer protective tube. While cutting, the front end of the tube pusher rack is inserted into the cut slit of the polyethylene outer protective tube that has been cut, and the continuous thrust and the oblique edge structure of the tube pusher rack are used to make the two cut polyethylene outer protective tubes slide slowly to the left and right sides respectively. After the two polyethylene outer protective tubes slide out, the cutting machine is at the cutting point of the next polyethylene outer protective tube ready for cutting. In addition, the cleaning brush also brushes and cleans the surface of the support that it passes by, sweeps away the residual polyethylene debris, and avoids affecting the rolling of the roller.

[0008] Preferably, silicone gaskets are pasted in the arc-shaped recesses on the base support and the fixing frame, and the fastening ends are composed of two metal plates respectively fixedly connected to the base support and the fixing frame, and holes are provided on the metal plates. Bolts are inserted into the holes and the two metal plates are tightened by nuts. The fixing frame is rotated and closed with the base support through a rotating shaft at one end, and the corresponding recesses on the base support and the fixing frame are respectively embedded in the outer wall of the polyethylene outer protective tube. After tightening the bolts on the metal plate, the silicone gasket is tightly wrapped on the polyethylene outer protective tube, thereby increasing the friction between the metal plate and the polyethylene outer protective tube and improving the locking effect.

[0009] Preferably, the anchoring assembly includes a positioning frame and an angle plate; the positioning frame is an L-shaped structure and is welded and fixed to the upper end of the cutting table, the positioning frame is symmetrically arranged in two groups and respectively rests against the front sides of the two bases, two angle plates are welded and fixed on one side of the base, the angle plate and the cutting table are tightened and fixed by bolts, the front end of the base is rested on the positioning frame in place, and then the bolts are inserted into the angle plates and screwed into the corresponding screw holes on the cutting table to completely fix the base on the cutting table.

[0010] Preferably, the anchoring assembly includes a limit plate, a positioning rod and a pin hole; the limit plate is a flat plate structure and is welded and fixed to the upper end of the cutting table, the positioning frame is symmetrically arranged in two groups and respectively abuts against the front sides of the two bases, the rear end of the limit plate is fixedly connected to the positioning rod, the rear end of the positioning rod is provided with an external thread, and a pin hole that passes through the base is opened in the front and back, the positioning rod is inserted into the corresponding pin hole and the rear end is tightened and fixed by a nut, the pin hole is aligned with the positioning rod, the base is horizontally inserted until the front end of the base abuts against the limit plate, and then the nut is screwed onto the rear end of the positioning rod until the nut abuts against the rear end of the base, and the base is completely fixed on the cutting table.

[0011] Preferably, the pipe pushing rack is a hollow structure and has two middle grooves symmetrically opened at the front end. A pushing plate with the front end flush with the edge of the pipe pushing rack is arranged in the middle groove. Two cylinders are installed in the cavity inside the pipe pushing rack. The piston rods of the cylinders are fixedly connected to the corresponding pushing plates. The pipe pushing rack moves forward, and the sharp tip of its front end is inserted into the slit of the cut polyethylene outer protective pipe. With the continuous thrust, the polyethylene outer protective pipe slides to both sides along the triangular hypotenuse of the pipe pushing rack. The large friction between the end part of the polyethylene outer protective pipe and the edge of the pipe pushing rack affects the pushing of the pipeline. The cylinder is used to push the pushing plate to assist the pipeline to move to the left and right sides.

[0012] Preferably, the movable platform has a hollow structure and an air inlet is provided at the rear end, the air inlet is connected to the air outlet channel of the external fan, and an air outlet panel is installed at the front end of the movable platform below the pipe pushing rack, and the air outlet panel is above the cutting groove. During the movement of the movable platform, the external fan delivers air flow, which is blown out by the air outlet panel to sweep the surface of the support, and cooperates with a cleaning brush to further improve the cleaning effect of the support.

[0013] Preferably, a lamp tube powered by an external AC power supply is installed in the frame, and a support leg is installed at the lower end of the cutting table to suspend the cutting table. A chip box is provided between the support legs and below the cutting groove. The internal cavity of the chip box is an inverted triangle cross-sectional structure. During the cutting process, the lamp tube provides lighting for the cutting area, which is convenient for operating the equipment at night. The polyethylene debris generated by the cutting falls on the support, and the cleaning brush driven by the motor rotates to brush the support, causing the polyethylene outer protective tube debris to slide along the oblique straight part and enter the chip box through the cutting groove.

[0014] Beneficial effects of the utility model:

[0015] 1. By improving the original fixed cutting machine into a device that cuts polyethylene outer protective tubes through horizontal movement of the mobile table, and with the bottom bracket and the clamping frame that fix 5 polyethylene outer protective tubes at a time, 5 polyethylene outer protective tubes can be cut at a time. While cutting, the debris spilled on the support can be automatically cleaned by the cleaning brush. Compared with the original cutting machine, it eliminates the trouble of replacing and fixing polyethylene outer protective tubes one by one, and there is no need to manually clean the cutting table, which greatly improves the efficiency of cutting processing;

[0016] 2. Using the triangular tube pusher, after each polyethylene outer protective tube is cut, the cut polyethylene outer protective tube can be automatically pushed out from between the bottom support and the fixing frame as the cutting machine moves. There is no need to manually take out the polyethylene outer protective tube, which is convenient for pipe recycling;

[0017] 3. The base support and cutting table are fixed by anchoring parts. The polyethylene outer protective tube can be cut and processed according to different specifications, and the corresponding base support and fixing frame can be quickly installed and replaced, which is flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram of the overall assembly of the first embodiment of the mobile polyethylene outer protective pipe cutting device of the present invention;

[0019] Figure 2 The three-dimensional structure schematic diagram of the first embodiment of the anchor assembly of the mobile polyethylene outer protective pipe cutting device of the utility model is shown;

[0020] Figure 3 The present invention is a schematic diagram of the overall assembly of the second embodiment of the mobile polyethylene outer protective pipe cutting device of the present invention;

[0021] Figure 4 The three-dimensional structure schematic diagram of the second embodiment of the anchor assembly of the mobile polyethylene outer protective pipe cutting device of the utility model is shown;

[0022] Figure 5 The present invention shows a schematic diagram of the bottom three-dimensional structure of the mobile platform of the mobile polyethylene outer protective pipe cutting device of the present invention;

[0023] Figure 6 What is shown is a schematic diagram of the internal three-dimensional structure of the pipe pushing rack of the mobile polyethylene outer protective pipe cutting device of the utility model.

[0024] Explanation of the accompanying drawings: 1. Cutting table; 2. Cutting groove; 3. Moving table; 4. Frame; 5. Cutting machine; 6. Horizontal part; 7. Oblique straight part; 8. Roller; 9. Cleaning brush; 10. Base; 11. Fixing frame; 12. Fastening end; 14. Pipe pushing frame; 15. Middle groove; 16. Pushing piece; 17. Cylinder; 18. Air inlet; 19. Air outlet panel; 20. Lamp tube; 21. Chip box; 1301. Positioning frame; 1302. Angle plate; 1303. Limiting plate; 1304. Positioning rod; 1305. Pin hole. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 6The utility model provides a mobile polyethylene outer protective pipe cutting device, including a cutting table 1, a cutting groove 2, a frame 4 and a cutting machine 5, a moving table 3, a horizontal part 6, an oblique straight part 7, a roller 8, a cleaning brush 9, a bottom bracket 10, a clamping frame 11, a fastening end 12, an anchoring assembly and a pipe pushing frame 14; a cutting groove 2 is opened in the middle of the cutting table 1, and the cutting machine 5 is located above the cutting groove 2. Two supports are fixedly installed on the upper end of the cutting table 1, and the supports are composed of a horizontal part 6 and an oblique straight part 7. The lower ends of the two oblique straight parts 7 are respectively connected to the left and right side edges of the cutting groove 2. Five polyethylene outer protective pipes arranged side by side are placed above the horizontal parts 6 of the two supports. A notch adapted to the support is provided at the lower end of the moving table 3, and a roller rolling along the surface of the oblique straight part 7 is installed in the notch. The roller 8 and the cleaning brush 9 driven to rotate by the motor, two bottom brackets 10 are symmetrically arranged on the upper end of the cutting table 1, one end of the bottom bracket 10 is movably connected with a clamping frame 11 through a rotating shaft, and a fastening end 12 is arranged between the other end of the bottom bracket 10 and the clamping frame 11, and 5 arc-shaped notches adapted to the outer diameter of the polyethylene outer protective tube are arranged on the bottom bracket 10 and the clamping frame 11. The clamping frame 11 rotates downward and closes with the bottom bracket 10 to press and fix the 5 polyethylene outer protective tubes, and an anchoring assembly is arranged between the bottom bracket 10 and the cutting table 1, and a pipe pushing rack 14 with a triangular structure is installed at the front end of the mobile platform 3. The pipe pushing rack 14 is above the support and the middle of the front end of the pipe pushing rack 14 is on the same horizontal axis as the cutting point of the polyethylene outer protective tube. The bottom bracket 10 is fixed by the anchoring assembly After being installed on the cutting table 1, 5 polyethylene outer protective tubes are taken out and placed one by one in the notch on the base 10, and then the clamping frame 11 is rotated to close with the base 10, and the 5 polyethylene outer protective tubes are locked at one time after the fastening end 12 is fixed, and then the cutting machine 5 is started, and the frame 4 is pushed to move to one side of the polyethylene outer protective tube by rolling the roller 8 on the oblique straight part 7 of the support to cut the polyethylene outer protective tube. At the same time, the front end of the tube pusher 14 is inserted into the cut slit of the polyethylene outer protective tube that has been cut, and the continuous thrust and the bevel structure of the tube pusher 14 are used to make the two cut polyethylene outer protective tubes slide out slowly to the left and right sides respectively. After the two polyethylene outer protective tubes slide out, the cutting machine 5 is ready at the cutting point of the next polyethylene outer protective tube. Cutting is performed. In addition, the cleaning brush 9 also brushes and cleans the surface of the support passed by, sweeps away the residual polyethylene debris, and avoids affecting the rolling of the roller 8. Silicone gaskets are pasted in the arc-shaped recesses on the base bracket 10 and the clamping frame 11. The fastening end 12 is composed of two metal plates respectively fixedly connected to the base bracket 10 and the clamping frame 11. Eyelets are provided on the metal plate. Bolts are inserted into the eyelets and the two metal plates are tightened by nuts. The clamping frame 11 rotates and closes the base bracket 10 through a rotating shaft at one end. The corresponding recesses on the base bracket 10 and the clamping frame 11 are respectively nested on the outer wall of the polyethylene outer protective tube. After tightening the bolts on the metal plate, the silicone gasket is tightly wrapped around the polyethylene outer protective tube, increasing the friction between the polyethylene outer protective tube and improving the locking effect.

[0027] See also Figure 5-Figure 6 The pipe pushing rack 14 is a hollow structure and has two middle grooves 15 symmetrically opened at the front end. A pushing piece 16 is arranged in the middle groove 15, and the front end is flush with the edge of the pipe pushing rack 14. Two cylinders 17 are installed in the cavity inside the pipe pushing rack 14. The piston rod of the cylinder 17 is fixedly connected to the corresponding pushing piece 16. The pipe pushing rack 14 moves forward, and the sharp tip of its front end is inserted into the cut slit of the cut polyethylene outer protective tube. With the continuous thrust, the polyethylene outer protective tube slides to both sides along the triangular hypotenuse of the pipe pushing rack 14. The friction between the end part of the polyethylene outer protective tube and the edge of the pipe pushing rack 14 is large, which affects the pushing of the pipeline. The cylinder 17 is used to push the pushing piece 16 to assist the pipeline to move to the left and right sides.

[0028] See also Figure 2 , Figure 4-Figure 6 The movable platform 3 is a hollow structure and an air inlet 18 is provided at the rear end. The air inlet 18 is connected to the air outlet channel of the external fan. An air outlet panel 19 is installed at the front end of the movable platform 3 and is located below the tube pusher 14. The air outlet panel 19 is located above the cutting groove 2. During the movement of the movable platform 3, the external fan sends in air flow, which is blown out by the air outlet panel 19 to sweep the surface of the support with wind force. With the cleaning brush 9, the cleaning effect of the support is further improved. A lamp powered by an external mains power supply is installed in the frame 4. Tube 20, a support leg is installed at the lower end of the cutting table 1 to suspend the cutting table 1, and a chip box 21 is arranged between the support legs and is located below the cutting groove 2. The internal cavity of the chip box 21 is an inverted triangle cross-section structure. During the cutting process, the lamp tube 20 provides lighting for the cutting area, which is convenient for operating the equipment at night. The polyethylene debris generated by the cutting falls on the support, and the cleaning brush 9 driven by the motor rotates to brush the support, so that the polyethylene outer protective tube debris slides along the oblique straight portion 7 and enters the chip box 21 through the cutting groove 2.

[0029] Example 1: Please refer to Figure 1-Figure 2 In this embodiment, the anchoring assembly includes a positioning frame 1301 and an angle plate 1302; the positioning frame 1301 is an L-shaped structure and is welded and fixed to the upper end of the cutting table 1, and the positioning frame 1301 is symmetrically arranged in two groups and respectively abuts against the front sides of the two base brackets 10, and two angle plates 1302 are welded and fixed to one side of the base bracket 10, and the angle plate 1302 and the cutting table 1 are tightened and fixed by bolts, and the front end of the base bracket 10 is abutted against the positioning frame 1301 in place, and then the bolts are inserted into the angle plate 1302 and screwed into the corresponding screw holes on the cutting table 1 to completely fix the base bracket 10 on the cutting table 1.

[0030] Example 2: Please refer to Figure 3-Figure 4In this embodiment, the anchor assembly includes a limit plate 1303, a positioning rod 1304 and a pin hole 1305; the limit plate 1303 is a flat plate structure and is welded and fixed to the upper end of the cutting table 1, and the positioning frame 1301 is symmetrically arranged in two groups and respectively abuts against the front sides of the two bottom brackets 10, and the rear end of the limit plate 1303 is fixedly connected to the positioning rod 1304, and the rear end of the positioning rod 1304 is provided with an external thread, and a pin hole 1305 that passes through the bottom bracket 10 is opened in the front and rear, and the positioning rod 1304 is inserted in the relative The corresponding pin hole 1305 is inserted into the rear end and is tightened and fixed by a nut. The pin hole 1305 is aligned with the positioning rod 1304, and the base bracket 10 is horizontally inserted until the front end of the base bracket 10 abuts against the limit plate 1303. Then the nut is screwed onto the rear end of the positioning rod 1304 until the nut abuts against the rear end of the base bracket 10, and the base bracket 10 is completely fixed on the cutting table 1. Compared with the first embodiment, this installation method reduces the number of bolts for fixing, achieves the same locking effect, and the installation and removal of the base bracket 10 is more convenient and quick.

[0031] Through the above steps, by improving the original fixed cutting machine 5 into a device for cutting polyethylene outer protective pipes through horizontal movement of the mobile table 3, with the base 10 and the fixing frame 11 for fixing 5 polyethylene outer protective pipes at one time, 5 polyethylene outer protective pipes can be cut at one time, and the debris scattered on the support can be automatically cleaned by the cleaning brush 9 during cutting. Compared with the original cutting machine 5, the trouble of replacing and fixing the polyethylene outer protective pipes one by one is eliminated, and there is no need to manually clean the cutting table 1, which greatly improves the efficiency of the cutting process, so as to solve the problem that the existing on-site cutting equipment for polyethylene outer protective pipes needs to clean the cutting table 1 multiple times, fix the pipes in place, etc. for each pipe processing, and the cutting efficiency is low.

Claims

1. A mobile polyethylene outer sheath pipe cutting device, comprising a cutting table (1), a cutting groove (2), a frame (4) and a cutting machine (5); characterized in that: It also includes a moving platform (3), a horizontal portion (6), an oblique straight portion (7), a roller (8), a cleaning brush (9), a bottom bracket (10), a clamping frame (11), a fastening end (12), an anchoring assembly and a pipe pushing frame (14); a cutting groove (2) is provided in the middle of the cutting platform (1), a cutting machine (5) is located above the cutting groove (2), two supports are fixedly installed on the upper end of the cutting platform (1), the supports are composed of a horizontal portion (6) and an oblique straight portion (7), the lower ends of the two oblique straight portions (7) are respectively connected to the left and right side edges of the cutting groove (2), five polyethylene outer protective tubes arranged side by side are placed above the horizontal portions (6) of the two supports, and a notch adapted to the support is provided at the lower end of the moving platform (3), a roller (8) rolling along the surface of the oblique straight portion (7) and driven by a motor are installed in the notch A rotating cleaning brush (9) is provided. Two bottom brackets (10) are symmetrically arranged on the upper end of the cutting table (1). One end of the bottom bracket (10) is movably connected to a clamping frame (11) through a rotating shaft. A fastening end (12) is arranged between the other end of the bottom bracket (10) and the clamping frame (11). Five arc-shaped recesses matching the outer diameter of the polyethylene outer protective tube are arranged on the bottom bracket (10) and the clamping frame (11). The clamping frame (11) rotates downward and closes with the bottom bracket (10) to press and fix the five polyethylene outer protective tubes. An anchoring assembly is arranged between the bottom bracket (10) and the cutting table (1). A triangular-shaped pipe pushing frame (14) is installed at the front end of the moving table (3). The pipe pushing frame (14) is located above the support and the middle of the front end of the pipe pushing frame (14) is on the same horizontal axis as the cutting point of the polyethylene outer protective tube.

2. The mobile polyethylene outer protective pipe cutting device according to claim 1 is characterized in that: Silicone gaskets are pasted into the arc-shaped recesses on the base bracket (10) and the clamping frame (11). The fastening end (12) is composed of two metal plates fixedly connected to the base bracket (10) and the clamping frame (11) respectively. The metal plates are provided with holes, and bolts are inserted into the holes and the two metal plates are tightened by nuts.

3. The mobile polyethylene outer protective pipe cutting device according to claim 1 is characterized in that: The anchoring assembly comprises a positioning frame (1301) and an angle plate (1302); the positioning frame (1301) is an L-shaped structure and is welded and fixed to the upper end of the cutting table (1); two groups of positioning frames (1301) are symmetrically arranged on the left and right and respectively abut against the front sides of two bottom brackets (10); two angle plates (1302) are welded and fixed to one side of the bottom bracket (10); and the angle plates (1302) are fixed to the cutting table (1) by bolts.

4. The mobile polyethylene outer protective pipe cutting device according to claim 1 is characterized in that: The anchoring assembly comprises a limit plate (1303), a positioning rod (1304) and a pin hole (1305); the limit plate (1303) is a flat plate structure and is welded and fixed on the upper end of the cutting table (1); two groups of positioning frames (1301) are symmetrically arranged on the left and right and respectively abut against the front sides of the two bottom brackets (10); the rear end of the limit plate (1303) is fixedly connected to the positioning rod (1304); the rear end of the positioning rod (1304) is provided with an external thread; a pin hole (1305) that passes through the bottom bracket (10) is provided in the front and rear; the positioning rod (1304) is inserted into the corresponding pin hole (1305) and the rear end is tightened and fixed by a nut.

5. The mobile polyethylene outer protective pipe cutting device according to claim 1 is characterized in that: The pipe pusher rack (14) is a hollow structure and has two middle grooves (15) symmetrically formed at the front end. A push piece (16) is arranged in the middle groove (15) and its front end is flush with the edge of the pipe pusher rack (14). Two cylinders (17) are installed in the cavity inside the pipe pusher rack (14). The piston rods of the cylinders (17) are fixedly connected to the corresponding push pieces (16).

6. The mobile polyethylene outer protective pipe cutting device according to claim 1 is characterized in that: The movable platform (3) is a hollow structure and is provided with an air inlet (18) at the rear end, the air inlet (18) being connected to an air outlet passage of an external fan, and an air outlet panel (19) located below the pipe pusher (14) is installed at the front end of the movable platform (3), and the air outlet panel (19) is located above the cutting groove (2).

7. The mobile polyethylene outer protective pipe cutting device according to claim 1 is characterized in that: A lamp tube (20) powered by an external mains electricity supply is installed in the frame (4); a support leg is installed at the lower end of the cutting table (1) to suspend the cutting table (1); a chip collecting box (21) is arranged between the support legs and is located below the cutting groove (2); and the internal cavity of the chip collecting box (21) is an inverted triangle cross-sectional structure.

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