CN220592316U - Steel wire mesh skeleton plastic composite pipe cutting machine - Google Patents

Abstract

The utility model relates to the technical field of cutting processing of steel wire mesh skeleton plastic composite pipes, in particular to a steel wire mesh skeleton plastic composite pipe cutting machine, which is used for fixing the cutting position of a pipe fitting through a fixing device and reducing the phenomenon of insufficient flatness of a cutting surface caused by vibration of the pipe fitting in the cutting process; the lifting device is matched with the feeding device to transport the pipe fitting to the cutting position, and the fixing device is matched to keep the whole cutting area of the pipe fitting horizontal in the cutting process, so that the bending degree of the pipe fitting in the cutting area is reduced; the transverse moving device drives the cutting device to cut a plurality of groups of pipe fittings simultaneously, so that the production efficiency of the device is improved; the cutting length is limited through the length fixing device, repeated measurement by an operator is not needed, the labor intensity in the operator is reduced, and the practicability of the device is improved; comprises a bottom plate, a knife cover, a first speed reducer, a first motor and a dustbin; the device also comprises a fixing device, a lifting device, a feeding device, a traversing device and a length fixing device.

Description

Steel wire mesh skeleton plastic composite pipe cutting machine

Technical Field

The utility model relates to the technical field of cutting processing of steel wire mesh skeleton plastic composite pipes, in particular to a steel wire mesh skeleton plastic composite pipe cutting machine.

Background

The steel wire mesh skeleton plastic composite pipe is an improved novel steel skeleton plastic composite pipe. The novel pipeline uses a high-strength plastic-steel-passing wire mesh framework and thermoplastic polyethylene as raw materials, a wire winding net is used as a framework reinforcement of a polyethylene plastic pipe, the high-density polyethylene is used as a matrix, and the high-performance modified bonding resin is used for tightly connecting the wire framework with the inner layer and the outer layer of the high-density polyethylene, so that the novel pipeline has an excellent composite effect, and the novel pipeline needs to be cut in the production and use processes.

The utility model patent in China with the application number of CN202222374153.5 relates to a steel wire mesh skeleton plastic composite pipe cutting machine, which comprises a cutting device, a supporting device, a waste collection device, a cooling device and a cleaning device, and can prevent the pipe from falling on the ground immediately after being cut, so that the possibility of pipe damage is reduced.

However, the above device has the following problems in practical use: firstly, the device does not have batch production capacity, so that the time consumption is long when large batches of pipe fittings are cut, and the production efficiency is insufficient; secondly, the device needs the manual work to measure cutting length at cutting in-process, adjusts cutting position, has reduced cutting efficiency, has increased operating personnel's intensity of labour.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a device for fixing the cutting position of a pipe fitting by a fixing device, so that the phenomenon of insufficient flatness of a cutting surface caused by vibration of the pipe fitting in the cutting process is reduced; the lifting device is matched with the feeding device to transport the pipe fitting to the cutting position, and the fixing device is matched to keep the whole cutting area of the pipe fitting horizontal in the cutting process, so that the bending degree of the pipe fitting in the cutting area is reduced; the transverse moving device drives the cutting device to cut multiple groups of pipe fittings simultaneously, so that the production efficiency of the device is improved; the cutting length is limited through the fixed-length device, repeated measurement by an operator is not needed, the labor intensity in the operator is reduced, and the practicability of the device is improved.

The utility model relates to a steel wire mesh skeleton plastic composite pipe cutting machine which comprises a bottom plate, a cutter cover, a first speed reducer, a first motor and a dustbin, wherein a cutting cutter is arranged in the cutter cover; the device comprises a base plate, a cutting device, a fixing device, a lifting device, a feeding device, a traversing device and a length fixing device, wherein the length fixing device, the fixing device and the lifting device are all arranged on the upper end surface of the base plate; fixing the cutting position of the pipe fitting through the fixing device, and reducing the phenomenon of insufficient flatness of a cutting surface caused by vibration of the pipe fitting in the cutting process; the lifting device is matched with the feeding device to transport the pipe fitting to the cutting position, and the fixing device is matched to keep the whole cutting area of the pipe fitting horizontal in the cutting process, so that the bending degree of the pipe fitting in the cutting area is reduced; the transverse moving device drives the cutting device to cut multiple groups of pipe fittings simultaneously, so that the production efficiency of the device is improved; the cutting length is limited through the fixed-length device, repeated measurement by an operator is not needed, the labor intensity in the operator is reduced, and the practicability of the device is improved.

Preferably, the fixing device comprises an operation table, fixing claws, first electric cylinders, first sensors and a cutting groove, wherein the operation table is arranged in the middle of the upper end face of the bottom plate, a portal frame is arranged on the upper end face of the operation table, a plurality of groups of fixing claws are horizontally arranged on the left part of the upper end face of the operation table, the middle of the upper end face of the operation table is provided with the cutting groove, the cutting groove divides the fixing claws into a left part and a right part, the fixing ends of a plurality of groups of first electric cylinders are arranged on the left part of the upper end face of the portal frame, the moving ends of the first electric cylinders penetrate through the upper part of the portal frame and are connected with the fixing claws through the first sensors, and the fixing claws connected with the plurality of groups of first electric cylinders are aligned with the plurality of groups of fixing claws arranged on the upper part of the operation table; the fixed claws of the upper end face of the operation table are used for bearing a plurality of groups of pipe fittings, the first electric cylinders of the universal overcontrol groups are extended to enable the upper fixed claws to be matched with the lower fixed claws to fix the pipe fittings, the pressure transmitted by the first electric cylinders is monitored through the first sensors, damage to the pipe fitting structure is prevented, the lower fixed claws are divided into left and right parts through the cutting grooves, the left and right sides of a pipe fitting cutting area in the cutting process are provided with upward supporting force for the pipe fittings, downward bending deformation of the pipe fittings is reduced when the cutting device moves downwards for cutting, equipment damage is caused by clamping the cutting knife, and the practicability of the device is improved.

Preferably, the lifting device comprises a conveying door frame, a second electric cylinder, a second sensor, a C-shaped frame, conveying wheels and a supporting seat, wherein the conveying door frame is arranged on the upper end face of the bottom plate, the conveying door frame is positioned on the right side of the operating table, the fixed end of the second electric cylinder is arranged on the upper end face of the conveying door frame, the moving end of the second electric cylinder penetrates through the upper end face of the conveying door frame and is connected with the C-shaped frame through the second sensor, a plurality of groups of conveying wheels are arranged on the C-shaped frame through rotating shafts, the middle part of the conveying door frame is connected with a plurality of groups of conveying wheels through rotating shafts and positioned on the lower side of the C-shaped frame, the front position and the rear position of the upper conveying wheels and the rear position of the conveying door frame are the same, the right part of the upper end face of the bottom plate is connected with a plurality of groups of fixed claws through the supporting seat, the second decelerator connected with the upper part of the supporting seat is the right side of the conveying door frame, the bottom of the upper end face of the conveying wheels connected with the middle part of the conveying door frame through rotating shafts is the same with the horizontal height of the fixed claws; the pipe fitting is placed on the upper end faces of all fixing claws and conveying wheels, then the second electric cylinder is controlled to extend, the upper conveying wheel is matched with the conveying door frame middle conveying wheel to fix the right part of the pipe fitting, the supporting of the fixing device and the right second speed reducer is matched, the arch radian of the cutting position of the pipe fitting before cutting is reduced, the cut surface after cutting is smooth, the pressure borne by the C-shaped frame is monitored through the second sensor, and the pipe fitting deformation caused by the large pressure generated on the pipe fitting is prevented.

Preferably, the feeding device comprises a second speed reducer and a second motor, the second speed reducer is arranged on the front end face of the C-shaped frame, the output end of the second speed reducer is connected with a rotating shaft on the C-shaped frame, the second motor is arranged on the second speed reducer, and the output end of the second motor is connected with the input end of the second speed reducer; the second motor is started to transmit power to a plurality of groups of rotating shafts on the C-shaped frame through the second speed reducer, and the second motor is matched with the second electric cylinder to stretch to press the pipe fitting, so that the pipe fitting is driven to move leftwards until the pipe fitting contacts with the length fixing device, automatic continuous production is realized, manual conveying and pipe fitting are not needed, and the labor intensity of operators is reduced.

Preferably, the transverse moving device comprises a screw rod, limiting rods, a transverse moving table, a third electric cylinder and a speed reducing motor, wherein a rectangular hole is formed in the right side of the upper end face of a portal of the operating table, supporting plates are arranged on the front side and the rear side of the rectangular hole, the front end and the rear end of the screw rod and the two groups of limiting rods are connected with the front and the rear supporting plates, the two groups of limiting rods are respectively positioned on the left side and the right side of the screw rod, nuts are arranged on the transverse moving table, the transverse moving table is connected with the screw rod through the nuts, the two groups of limiting rods penetrate through the transverse moving table, the rectangular hole is formed in the middle of the transverse moving table, the fixed end of the third electric cylinder is arranged in the rectangular hole, the moving end of the third electric cylinder penetrates through the lower end face of the transverse moving table and the rectangular hole in the portal and is connected with the cutting device, the speed reducing motor is arranged on the front end face of the front side supporting plate, and the output end of the speed reducing motor penetrates through the front side supporting plate and is connected with the screw rod; the speed reducing motor is started to drive the screw rod to rotate, the nut on the screw rod and the transverse moving platform are matched to drive the transverse moving platform to move forwards and backwards, the third electric cylinder is controlled to stretch and simultaneously start the first motor to enable the cutting knife to rotate to cut the pipe fitting, and the transverse movement of the transverse moving platform is matched to complete cutting of multiple groups of pipe fittings simultaneously, so that the production efficiency of the device and the practicability of the device are improved.

Preferably, the fixed-length device comprises a sliding rail, a sliding block, a limiting bolt, a baffle, a rubber pad and a limiting plate, wherein two groups of sliding rails are arranged at the left part of the upper end surface of the bottom plate, the sliding block is arranged on the sliding rail, the sliding block can move left and right on the sliding rail, the baffle and the limiting bolt are arranged on the upper end surface of the sliding block, the upper part of the right end surface of the baffle is obliquely connected with the limiting plate, the height of the joint of the top of the limiting plate and the baffle is the same as the height of the upper end surface of the lower fixing claw, the rubber pad is stuck at the upper part of the right end surface of the baffle, and the rubber pad is positioned at the upper side of the limiting plate; through the adjustment slider position, the length between its left end face and the cutting groove when the left end face of pipe fitting pushes up the right end face of rubber pad is the required length of cutting, cooperates material feeding unit to accomplish the length automatically and confirms, carries out the bearing to the left part of pipe fitting through the limiting plate of slope, causes great error after preventing the pipe fitting left side when not supporting the downwarping cutting, has improved the practicality of device.

Compared with the prior art, the utility model has the beneficial effects that: fixing the cutting position of the pipe fitting through the fixing device, and reducing the phenomenon of insufficient flatness of a cutting surface caused by vibration of the pipe fitting in the cutting process; the lifting device is matched with the feeding device to transport the pipe fitting to the cutting position, and the fixing device is matched to keep the whole cutting area of the pipe fitting horizontal in the cutting process, so that the bending degree of the pipe fitting in the cutting area is reduced; the transverse moving device drives the cutting device to cut multiple groups of pipe fittings simultaneously, so that the production efficiency of the device is improved; the cutting length is limited through the fixed-length device, repeated measurement by an operator is not needed, the labor intensity in the operator is reduced, and the practicability of the device is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a right side view of the lifting device;

FIG. 4 is a right side schematic view of the fixture;

FIG. 5 is a schematic diagram of an axial structure of the traversing device;

the reference numerals in the drawings: 1. a bottom plate; 2. a knife cover; 3. a first decelerator; 4. a first motor; 5. a dustbin; 6. an operation table; 7. a fixed claw; 8. a first electric cylinder; 9. a first sensor; 10. cutting a groove; 11. a conveying portal; 12. a second electric cylinder; 13. a second sensor; 14. a C-shaped frame; 15. a transfer wheel; 16. a support base; 17. a second decelerator; 18. a second motor; 19. a screw rod; 20. a limit rod; 21. a traversing table; 22. a third electric cylinder; 23. a speed reducing motor; 24. a slide rail; 25. a slide block; 26. a limit bolt; 27. a baffle; 28. a rubber pad; 29. and a limiting plate.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Example 1

As shown in fig. 1, 2, 3, 4 and 5, the fixing device and the lifting device are all arranged on the upper end surface of the bottom plate 1, the feeding device is arranged on the lifting device, and the traversing device is arranged on the fixing device;

firstly, a plurality of groups of pipe fittings are sequentially placed on a plurality of groups of fixing claws 7, the middle part of each pipe fitting is arranged on the upper end face of a lower conveying wheel 15, then a second electric cylinder 12 is controlled to extend, the upper conveying wheel 15 is matched with the middle conveying wheel 15 of a conveying portal 11 to fix the right part of each pipe fitting, then a second motor 18 is started to transmit power to a plurality of groups of rotating shafts on a C-shaped frame 14 through a second speed reducer 17, the pipe fittings are matched with the second electric cylinder 12 to extend to press, so that the pipe fittings are driven to move leftwards to a required length, a plurality of groups of first electric cylinders 8 are controlled to extend, the upper fixing claws 7 are matched with the lower fixing claws 7 to fix the pipe fittings, then a speed reducing motor 23 is controlled to transmit power to a lead screw 19 to drive a lead screw 19 to rotate, a nut on a traversing table 21 is driven to move forwards and backwards through the cooperation of the lead screw 19 and a nut on the traversing table 21, a first motor 4 is controlled to start to enable a cutting knife to rotate to cut the pipe fittings, and the traversing table 21 is matched with the traversing table 21 to move transversely;

the fixing device comprises an operation table 6, fixing claws 7, first electric cylinders 8, first sensors 9 and a cutting groove 10, wherein the operation table 6 is arranged in the middle of the upper end face of the bottom plate 1, a portal frame is arranged on the upper end face of the operation table 6, a plurality of groups of fixing claws 7 are horizontally arranged on the left part of the upper end face of the operation table 6, the cutting groove 10 is formed in the middle of the upper end face of the operation table 6, the fixing claws 7 are divided into a left part and a right part by the cutting groove 10, the fixing ends of the plurality of groups of first electric cylinders 8 are arranged on the left part of the upper end face of the portal frame, the moving end of the first electric cylinders 8 penetrates through the upper part of the portal frame and is connected with the fixing claws 7 through the first sensors 9, and the fixing claws 7 connected with the plurality of groups of the first electric cylinders 8 are vertically aligned with the plurality of groups of fixing claws 7 arranged on the upper part of the operation table 6;

the lifting device comprises a conveying door frame 11, a second electric cylinder 12, a second sensor 13, a C-shaped frame 14, conveying wheels 15 and a supporting seat 16, wherein the conveying door frame 11 is installed on the upper end face of a bottom plate 1, the conveying door frame 11 is positioned on the right side of an operation table 6, the upper end face of the conveying door frame 11 is provided with a fixed end of the second electric cylinder 12, the moving end of the second electric cylinder 12 penetrates through the upper end face of the conveying door frame 11 and is connected with the C-shaped frame 14 through the second sensor 13, a plurality of groups of conveying wheels 15 are installed on the C-shaped frame 14 through rotating shafts, the middle part of the conveying door frame 11 is connected with a plurality of groups of conveying wheels 15 through rotating shafts and positioned on the lower side of the C-shaped frame 14, the front and rear positions of the upper and lower conveying wheels 15 on the conveying door frame 11 are the same, the right part of the upper end face of the bottom plate 1 is connected with a plurality of groups of fixed claws 7 through the supporting seat 16, the second speed reducer 17 connected on the supporting seat 16 is positioned on the right side of the conveying door frame 11, and the upper end face of the conveying door frame 11 is connected with the second speed reducer 17 connected with the upper end of the operation table 6 is the same horizontal height of the fixed claws 7;

the feeding device comprises a second speed reducer 17 and a second motor 18, the second speed reducer 17 is arranged on the front end face of the C-shaped frame 14, the output end of the second speed reducer 17 is connected with a rotating shaft on the C-shaped frame 14, the second motor 18 is arranged on the second speed reducer 17, and the output end of the second motor 18 is connected with the input end of the second speed reducer 17;

the transverse moving device comprises a screw rod 19, limiting rods 20, a transverse moving table 21, a third electric cylinder 22 and a speed reducing motor 23, wherein rectangular holes are formed in the right side of the upper end face of a portal of the operating table 6, supporting plates are arranged on the front side and the rear side of the rectangular holes, the front end and the rear end of the screw rod 19 and the two groups of limiting rods 20 are connected with the front and the rear end of the two groups of supporting plates, the two groups of limiting rods 20 are respectively positioned on the left side and the right side of the screw rod 19, nuts are arranged on the transverse moving table 21, the transverse moving table 21 is connected with the screw rod 19 through the nuts, the two groups of limiting rods 20 penetrate through the transverse moving table 21, rectangular holes are formed in the middle of the transverse moving table 21, fixed ends of the third electric cylinder 22 penetrate through the lower end face of the transverse moving table 21 and the rectangular holes in the portal, the speed reducing motor 23 is arranged on the front end face of the front side supporting plate, and the output end of the speed reducing motor 23 penetrates through the front side supporting plate to be connected with the screw rod 19;

fixing the cutting position of the pipe fitting through the fixing device, and reducing the phenomenon of insufficient flatness of a cutting surface caused by vibration of the pipe fitting in the cutting process; the lifting device is matched with the feeding device to transport the pipe fitting to the cutting position, and the fixing device is matched to keep the whole cutting area of the pipe fitting horizontal in the cutting process, so that the bending degree of the pipe fitting in the cutting area is reduced; the transverse moving device drives the cutting device to cut multiple groups of pipe fittings simultaneously, so that the production efficiency of the device is improved.

Example 2

The improvement on the basis of the first embodiment comprises a length fixing device which is arranged on the upper end surface of the bottom plate 1;

the cutting length is limited through the length fixing device, repeated measurement by an operator is not needed, the labor intensity of the operator is reduced, and the practicability of the device is improved;

by adjusting the position of the sliding block 25, the length between the left end face of the pipe fitting and the cutting groove 10 is the length required by cutting when the left end face of the pipe fitting is propped against the right end face of the rubber pad 28, the length determination is automatically completed by matching with the feeding device, the left part of the pipe fitting is supported by the inclined limiting plate 29, and larger errors caused by downward bending and cutting when the left side of the pipe fitting is unsupported are prevented;

the fixed-length device comprises slide rails 24, slide blocks 25, limiting bolts 26, baffle plates 27, rubber pads 28 and limiting plates 29, two groups of slide rails 24 are arranged on the left portion of the upper end face of the bottom plate 1, the slide blocks 25 are arranged on the slide rails 24, the slide blocks 25 can move left and right on the slide rails 24, the baffle plates 27 and the limiting bolts 26 are arranged on the upper end face of the slide blocks 25, the limiting plates 29 are obliquely connected to the upper portions of the right end faces of the baffle plates 27, the height of the connecting portions of the tops of the limiting plates 29 and the baffle plates 27 is the same as the height of the upper end faces of the lower fixing claws 7, the rubber pads 28 are attached to the upper portions of the right end faces of the baffle plates 27, and the rubber pads 28 are located on the upper sides of the limiting plates 29.

As shown in fig. 1 to 5, in the steel wire mesh skeleton plastic composite pipe cutting machine of the present utility model, when in operation, a plurality of groups of pipe fittings are firstly placed on a plurality of groups of fixing claws 7 in sequence, the middle part of the pipe fitting is located on the upper end face of a lower side conveying wheel 15, then a second electric cylinder 12 is controlled to extend, the upper side conveying wheel 15 is matched with the middle part conveying wheel 15 of a conveying portal 11 to fix the right part of the pipe fitting, a sliding block 25 is then adjusted to a required position, a second motor 18 is started to transmit power to a plurality of groups of rotating shafts on a C-shaped frame 14 through a second speed reducer 17, the pipe fitting is matched with the second electric cylinder 12 to extend, so as to drive the left end face of the pipe fitting to move leftwards until the right end face of a rubber pad 28 is contacted, then a plurality of groups of first electric cylinders 8 are controlled to extend, the upper side fixing claws 7 are matched with the lower side fixing claws 7 to fix the pipe fitting, then a speed reducing motor 23 transmits power to a lead screw 19 to drive the lead screw 19 to rotate, a nut on a traversing table 21 is matched with the lead screw 19 to drive the lead screw 19 to move forwards and backwards, a third electric cylinder 22 is controlled to extend, and simultaneously the first electric motor 4 is started to rotate to move transversely, so that the cutting table 21 is matched with the first electric motor 4 is started to move transversely, so as to cut the pipe fitting can cut and complete the pipe fitting.

The second speed reducer 17, the second motor 18, the third electric cylinder 22, the first electric cylinder 8, the first sensor 9, the second sensor 13 and the speed reducing motor 23 of the steel wire mesh skeleton plastic composite pipe cutting machine are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached using instructions without creative labor of the person skilled in the art.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (6)

1. The utility model provides a wire mesh skeleton plastics composite pipe cutting machine, including bottom plate (1), knife rest (2), first reduction gear (3), first motor (4) and dustbin (5), install cutting tool in knife rest (2), the output of first reduction gear (3) is connected with the cutting tool in knife rest (2), installs first motor (4) on first reduction gear (3), the output of first motor (4) is connected with first reduction gear (3), has placed dustbin (5) on the up end of bottom plate (1); the cutting device is characterized by further comprising a fixing device, a lifting device, a feeding device, a traversing device and a length fixing device, wherein the length fixing device, the fixing device and the lifting device are all arranged on the upper end face of the bottom plate (1), the traversing device is arranged on the fixing device and connected with the cutting device, and the feeding device is arranged on the lifting device.

2. The steel wire mesh skeleton plastic composite pipe cutting machine according to claim 1, wherein the fixing device comprises an operation table (6), fixing claws (7), a first electric cylinder (8), a first sensor (9) and a cutting groove (10), the operation table (6) is installed in the middle of the upper end face of the bottom plate (1), a portal frame is arranged on the upper end face of the operation table (6), a plurality of groups of fixing claws (7) are horizontally installed on the left part of the upper end face of the operation table (6), the cutting groove (10) is formed in the middle of the upper end face of the operation table (6), the fixing claws (7) are divided into a left part and a right part by the cutting groove (10), fixed ends of a plurality of groups of first electric cylinders (8) are installed on the left part of the upper end face of the portal frame, the moving ends of the first electric cylinders (8) penetrate through the upper part of the portal frame and are connected with the fixing claws (7) by the first sensor (9), and the plurality of groups of fixing claws (7) connected with the upper part of the operation table (6) are vertically aligned.

3. A steel wire mesh skeleton plastic composite pipe cutting machine as defined in claim 1, wherein the lifting device comprises a conveying door frame (11), a second electric cylinder (12), a second sensor (13), a C-shaped frame (14), conveying wheels (15) and a supporting seat (16), wherein the conveying door frame (11) is installed on the upper end face of a bottom plate (1), the conveying door frame (11) is positioned on the right side of an operating table (6), the fixed end of the second electric cylinder (12) is installed on the upper end face of the conveying door frame (11), the moving end of the second electric cylinder (12) penetrates through the upper end face of the conveying door frame (11) and is connected with the C-shaped frame (14) through the second sensor (13), a plurality of groups of conveying wheels (15) are installed on the C-shaped frame (14) through a rotating shaft, the middle part of the conveying door frame (11) is connected with a plurality of groups of conveying wheels (15) through the rotating shaft and positioned on the lower side of the C-shaped frame (14), the front and rear positions of the conveying door frame (11) are identical, the right end face right part of the bottom plate (1) is connected with a plurality of supporting seat (16) through the supporting seat (16), the right end face of the conveying door frame (1) is connected with a plurality of groups of speed reducers (17) which are fixedly positioned on the upper side of the supporting seat (17) and is connected with the second door frame (17) through the supporting seat (17), the bottom of the upper end face of the conveying wheel (15) connected with the middle part of the conveying portal (11) through a rotating shaft is the same as the horizontal height of the bottom of the upper end face of the fixed claw (7).

4. A steel wire mesh skeleton plastic composite pipe cutting machine as claimed in claim 3, characterized in that the feeding device comprises a second speed reducer (17) and a second motor (18), the second speed reducer (17) is arranged on the front end face of the C-shaped frame (14), the output end of the second speed reducer (17) is connected with the rotating shaft on the C-shaped frame (14), the second motor (18) is arranged on the second speed reducer (17), and the output end of the second motor (18) is connected with the input end of the second speed reducer (17).

5. The steel wire mesh skeleton plastic composite pipe cutting machine according to claim 2, wherein the traversing device comprises a screw rod (19), limiting rods (20), a traversing table (21), a third electric cylinder (22) and a gear motor (23), rectangular holes are formed in the right side of the upper end face of a portal of the operating table (6), supporting plates are arranged on the front side and the rear side of the rectangular holes, the front end and the rear end of the screw rod (19) and the two groups of limiting rods (20) are connected with the front supporting plate and the rear supporting plate, the two groups of limiting rods (20) are respectively positioned on the left side and the right side of the screw rod (19), nuts are arranged on the traversing table (21), the traversing table (21) is connected with the screw rod (19) through the nuts, the two groups of limiting rods (20) penetrate through the traversing table (21), rectangular holes are formed in the middle of the traversing table (21), fixed ends of the third electric cylinder (22) are arranged in the rectangular holes, the moving ends of the third electric cylinder (22) penetrate through the lower end face of the traversing table (21) and the rectangular holes in the portal are connected with the cutting device, the gear motor (23) is arranged on the front end face of the front supporting plate, and the output end of the gear motor (23) penetrates through the front supporting plate (19).

6. The steel wire mesh skeleton plastic composite pipe cutting machine according to claim 1, wherein the fixed-length device comprises a sliding rail (24), a sliding block (25), a limiting bolt (26), a baffle plate (27), a rubber pad (28) and a limiting plate (29), two groups of sliding rails (24) are arranged on the left part of the upper end face of the bottom plate (1), the sliding block (25) is arranged on the sliding rail (24), the sliding block (25) can move left and right on the sliding rail (24), the baffle plate (27) and the limiting bolt (26) are arranged on the upper end face of the sliding block (25), the limiting plate (29) is obliquely connected to the upper part of the right end face of the baffle plate (27), the height of the joint of the top of the limiting plate (29) and the upper end face of the lower side fixing claw (7) is the same, the rubber pad (28) is attached to the upper part of the right end face of the baffle plate (27), and the rubber pad (28) is located on the upper side of the limiting plate (29).