CN117921779A

CN117921779A - PE film production is with side cut recovery unit

Info

Publication number: CN117921779A
Application number: CN202410146745.2A
Authority: CN
Inventors: 岳劲夫
Original assignee: Chongqing Hetai Runjia Co ltd
Current assignee: Chongqing Hetai Runjia Co ltd
Priority date: 2024-01-31
Filing date: 2024-01-31
Publication date: 2024-04-26

Abstract

The invention discloses a trimming recovery device for PE film production, which relates to the technical field of PE film production devices and comprises a workbench, wherein two mounting grooves are formed in two sides of the workbench, one mounting groove is rotationally connected with an unreeling roller, and the other mounting groove is rotationally connected with a reeling roller; the output end of the driving mechanism is connected with the unreeling roller and the reeling roller; the trimming mechanism comprises a cutter rest, an adjusting component, an electric telescopic rod and a slitting knife, the cutter rest is fixedly connected with the middle of the workbench, the trimming operation of the film in conveying is completed under the working of the trimming mechanism, the rolling operation of the cut film waste edges in conveying is completed, the film waste edges are not required to be pulled and sheared by workers, the recovery of the film waste edges is automatically completed, and the operation burden of the workers is greatly lightened.

Description

PE film production is with side cut recovery unit

Technical Field

The invention relates to the technical field of PE film production devices, in particular to a trimming recovery device for PE film production.

Background

PE film, namely polyethylene film, refers to the film produced by PE film, and PE film's gas permeability is great, and along with the increase of density, its gas permeability is the decline, and current PE film need be limited its size when carrying out production, lacks more convenient and fast's waste recovery subassembly to its edge excision back.

The utility model has disclosed a PE film production and used the side cut recovery unit in China's application number is CN202320227998.3, it cuts the membrane through setting up the cutter, and adopt the pinch block to drive the spliced groove to fix the membrane waste edge cut, make it rotate and wind on the material roller along with the material roller, this kind of mode, receive the cutter influence easily when winding up the membrane to two material rollers, and need to set up the third servo motor to control the material roller to rotate additionally, have raised the cost, twine the membrane waste edge into a mode of clamping into the spliced groove and carry on the winding at the same time, need to cut off and twine and clamp into the spliced groove to the membrane waste edge manually, has raised the operation burden of staff, and increase the membrane waste edge recovered and recycled degree of difficulty, has reduced the recovery effect to the membrane waste edge.

Disclosure of Invention

The invention provides a trimming recovery device for PE film production, and aims to solve the problem that in the traditional technology, the film waste edges are entangled into a mode of being clamped into a splicing groove for winding, and the film waste edges are manually cut off and entangled and clamped into the splicing groove, so that the operation burden of workers is increased.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

edge trimming recovery device is used in PE film production, includes:

The device comprises a workbench, wherein two mounting grooves are formed in two sides of the workbench, one mounting groove is rotationally connected with an unreeling roller, and the other mounting groove is rotationally connected with a winding roller;

The output end of the driving mechanism is connected with the unreeling roller and the reeling roller;

The edge cutting mechanism comprises a cutter rest, an adjusting assembly, electric telescopic rods and a slitting knife, the cutter rest is fixedly connected with the middle part of the workbench, the adjusting assembly is connected to the cutter rest, the output end of the adjusting assembly is connected with two electric telescopic rods, the adjusting assembly is used for simultaneously adjusting the positions of the two electric telescopic rods, the output end of each electric telescopic rod is fixedly connected with a sliding frame, and one side, close to the unreeling roller, of the sliding frame is fixedly connected with the slitting knife;

The recycling mechanism comprises a pressing component, a waste roller and a clamping component, wherein the input end of the pressing component is connected to one side of the sliding frame, far away from the unreeling roller, a recycling groove is formed in the workbench, the waste roller is rotationally connected to the recycling groove, one end of the waste roller penetrates through the recycling groove and is fixedly connected with a driven gear, the driven gear is meshed with the middle of the driving toothed belt, the clamping component is connected to the waste roller, and the output end of the pressing component is used for driving the film waste edge to enter the output end of the clamping component.

Preferably, the driving mechanism comprises a driving motor, a transmission gear and a transmission toothed belt, the driving motor is arranged on the workbench, the transmission gear is coaxially and fixedly connected with one ends of the unreeling roller and the reeling roller, the output end of the driving motor is coaxially and fixedly connected with one transmission gear, and the two transmission gears are sleeved with the same transmission toothed belt.

Preferably, the adjusting component comprises a threaded rod and sliding blocks, a sliding groove is formed in the cutter frame, the threaded rod is rotationally connected in the sliding groove, two sliding blocks are connected to the threaded rod in a threaded mode, the sliding blocks are all in sliding connection in the sliding groove, and the two electric telescopic rods are installed on the two sliding blocks in a one-to-one correspondence mode.

Preferably, the screw pitch of the threaded rod and the screw pitch of the threaded connection parts of the two sliding blocks are equal and the screw direction is opposite, and one end of the threaded rod penetrates through the sliding groove and is fixedly connected with a handle.

Preferably, a cutter separating groove is communicated with one side, close to the unreeling roller, of the top of the recovery groove, and the cutter separating groove is matched with the two cutter separating blades.

Preferably, the subassembly of pushing down includes expansion plate, connecting rod and pushes down the structure, the cutter frame is kept away from unreeling roller one side and has been seted up perpendicular spout, it has two expansion plates to slide in the perpendicular spout, two the equal fixedly connected with connecting rod of expansion plate output, two the connecting rod one-to-one is connected with two carriage, expansion plate both ends bottom all is connected with pushes down the structure, and wherein two pushing down the structure output and support and lean on the film waste material limit both sides.

Preferably, the expansion plate comprises a vertical sliding plate and a sliding plate, the vertical sliding plate is connected in the expansion groove in a sliding manner along the vertical direction, the two opposite sides of the vertical sliding plate are provided with expansion grooves, the sliding plate is connected in the expansion grooves in a sliding manner, the gap of the sliding plate is positioned in the expansion grooves, one end of the sliding plate, far away from the vertical sliding plate, is fixedly connected with the connecting rod, and the bottoms of the opposite sides of the vertical sliding plate and the sliding plate are connected with the pressing structure.

Preferably, the pushing structure comprises a pushing block, a rotating shaft, a pushing rod and a torsion spring, wherein a plurality of pushing blocks are fixedly connected to two vertical sliding plates and sliding plates in one-to-one correspondence, the rotating shaft is fixedly connected to the bottom of the pushing block, the pushing rod is coaxially connected to the rotating shaft in a rotating manner, the pushing rod is abutted to the bottom of the pushing block when rotating to the horizontal plane, the torsion spring is fixedly connected between the pushing rod and the rotating shaft, and the pushing rod is initially in a horizontal state.

Preferably, the clamping assembly comprises a clamping groove, clamping blocks and clamping springs, wherein the clamping groove is formed in the waste roller, two sides in the clamping groove are communicated with extrusion grooves, the two extrusion grooves are slidably connected with the clamping blocks, and the clamping springs are fixedly connected between the clamping blocks and the inner walls of the extrusion grooves.

Preferably, the vertical sliding plate and the sliding plate are fixedly connected with a surface cutter at the bottom of one side close to the winding roller, wherein a surface cutter groove is formed in a clamping block at one side close to the winding roller, and the two surface cutters are matched with the surface cutter groove.

Compared with the prior art, the invention has the following beneficial effects:

1. According to the invention, the edge cutting mechanism is arranged, so that the edge cutting operation can be carried out on the film in the conveying process, the positions of the two slitting knives can be adjusted through the adjusting assembly, different edge cutting requirements of the film can be conveniently completed, the upper and lower positions of the slitting knives can be controlled through the arrangement of the electric telescopic rod, the influence of the slitting knives on the unreeling roller when the film is wound to the reeling roller is effectively avoided, and the operation burden of staff is reduced.

2. According to the invention, the unreeling roller, the reeling roller and the waste roller can be driven to rotate simultaneously by arranging the driving mechanism and the driven gear, and the unreeling roller and the reeling roller are started briefly by the driving motor, so that the slitting knife can slit films with certain lengths, the film waste edges are prevented from being recovered and damaged, the waste rollers are regulated, the clamping grooves of the waste rollers face upwards, and the subsequent recovery operation is facilitated.

3. According to the invention, the telescopic plate is arranged, and when the horizontal position of the slitting knife is adjusted, the sliding frame drives the sliding plate to move through the connecting rod, so that the sliding plate extends out of the telescopic groove in the vertical sliding plate, the vertical sliding plate and the sliding plate always keep corresponding to the slit film waste edges, and the subsequent pressing and cutting operation on the film waste edges is facilitated.

4. According to the invention, the recovery mechanism is arranged, when the output ends of the two electric telescopic rods continue to stretch out for a short time, the telescopic plates push the film waste edges to move downwards through the two pressing assemblies, so that the film waste edges are clamped between the two clamping blocks, meanwhile, the surface cutters on the telescopic plates cut into the cutter grooves on the clamping blocks close to the winding roller, the clamped film waste edges are cut off and close to one end of the winding roller, the cutting and clamping operation on the film waste edges is completed, the winding operation on the film waste edges is conveniently completed when the waste rollers rotate, and the cutting and winding operation on the film waste edges by workers is not needed.

5. According to the invention, the pressing component is arranged, when the pressing component moves upwards, the pressing rod overcomes the elasticity of the torsion spring to rotate under the obstruction of the bottom of the clamping blocks, and the pressing rod withdraws from the two clamping blocks and the seeds, so that the obstruction to the recovery of the film waste edges is avoided.

In conclusion, the edge cutting operation of the film in conveying is completed under the working of the edge cutting mechanism, meanwhile, the rolling operation of the cut film waste edges in conveying is completed, the film waste edges are not required to be pulled and sheared by workers, the recovery of the film waste edges is automatically completed, and the operation burden of the workers is greatly reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram of a driving mechanism according to the present invention;

FIG. 3 is a schematic vertical cross-sectional view of the present invention;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a schematic view of an adjustment assembly of the present invention;

Fig. 6 is a schematic view of the expansion plate and the pressing structure of the present invention.

In the figure: the device comprises a workbench, a mounting groove, a unreeling roller 3, a reeling roller 4, a driving motor 5, a driving gear 6, a driving toothed belt 7, a recycling groove 8, a cutter holder 9, a threaded rod 10, a handle 11, a sliding groove 12, a sliding block 13, an electric telescopic rod 14, a sliding frame 15, a separating cutter 16, a separating cutter groove 17, a vertical sliding groove 18, a telescopic plate 19, a vertical sliding plate 20, a telescopic groove 21, a sliding plate 22, a connecting rod 23, a pressing block 24, a rotating shaft 25, a pressing rod 26, a waste roller 27, a driven gear 28, a clamping groove 29, a pressing groove 30, a clamping block 31, a clamping spring 32, a surface cutter 33 and a surface cutter 34.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1 to 3, a trimming recovery apparatus for PE film production includes:

two mounting grooves 2 are formed in two sides of the workbench 1, one mounting groove 2 is connected with an unreeling roller 3 in a rotating mode, and the other mounting groove 2 is connected with a winding roller 4 in a rotating mode.

The output end of the driving mechanism is connected with the unreeling roller 3 and the reeling roller 4; the driving mechanism comprises a driving motor 5, a transmission gear 6 and a transmission toothed belt 7, the driving motor 5 is arranged on the workbench 1, the transmission gear 6 is coaxially and fixedly connected with one end of the unreeling roller 3 and one end of the reeling roller 4, the output end of the driving motor 5 is coaxially and fixedly connected with one transmission gear 6, and the two transmission gears 6 are sleeved with the same transmission toothed belt 7.

The trimming mechanism comprises a cutter rest 9, an adjusting component, electric telescopic rods 14 and a slitting knife 16, wherein the cutter rest 9 is fixedly connected with the middle part of the workbench 1, the adjusting component is connected to the cutter rest 9, the output end of the adjusting component is connected with the two electric telescopic rods 14, the adjusting component is used for adjusting the positions of the two electric telescopic rods 14 at the same time, the output end of each electric telescopic rod 14 is fixedly connected with a sliding frame 15, and the sliding frame 15 is fixedly connected with the slitting knife 16 close to one side of the unreeling roller 3.

Referring to fig. 5, the adjusting assembly includes a threaded rod 10 and sliding blocks 13, a sliding groove 12 is formed in the cutter frame 9, the threaded rod 10 is rotatably connected in the sliding groove 12, two sliding blocks 13 are connected to the threaded rod 10 in a threaded manner, the two sliding blocks 13 are all slidably connected in the sliding groove 12, and two electric telescopic rods 14 are installed on the two sliding blocks 13 in a one-to-one correspondence manner.

The screw pitch of the threaded rod 10 and the screw pitch of the threaded connection parts of the two sliding blocks 13 are equal and the screw direction is opposite, one end of the threaded rod 10 penetrates through the sliding groove 12 and is fixedly connected with the handle 11, and the threaded rod 10 can be conveniently rotated through the handle 11.

Referring to fig. 4 and 6, the recovery mechanism includes pushing down subassembly, waste material roller 27 and clamping assembly, pushing down subassembly input connection is kept away from unreeling roller 3 one side at carriage 15, recovery groove 8 has been seted up on workstation 1, recovery groove 8 internal rotation is connected with waste material roller 27, waste material roller 27 one end runs through recovery groove 8, and coaxial fixedly connected with driven gear 28, driven gear 28 and 7 middle part intermeshing of driving toothed belt, be connected with clamping assembly on the waste material roller 27, wherein pushing down the subassembly output is used for driving the film waste material limit and gets into on the clamping assembly output.

The top of the recovery groove 8 is communicated with a cutter separating groove 17 on one side close to the unreeling roller 3, the cutter separating groove 17 is matched with the two slitting cutters 16, and the depth of the cutter separating groove 17 is larger than the length of the slitting cutters 16 in the vertical direction, so that the cutter separating cutters 16 are prevented from being blocked when the slitting cutters 16 work.

The pushing component comprises a telescopic plate 19, a connecting rod 23 and a pushing structure, wherein a vertical sliding groove 18 is formed in one side, far away from the unreeling roller 3, of the cutter frame 9, two telescopic plates 19 are connected in a sliding manner in the vertical sliding groove 18, the output ends of the two telescopic plates 19 are fixedly connected with the connecting rod 23, the two connecting rods 23 are connected with the two sliding frames 15 in one-to-one correspondence, the bottoms of the two ends of the telescopic plates 19 are connected with the pushing structure, and the output ends of the two pushing structure are propped against two sides of the film waste edge.

The expansion plate 19 includes perpendicular slide 20 and slide 22, and perpendicular slide 20 is along vertical direction sliding connection in expansion groove 21, and expansion groove 21 has all been seted up to two relative sides of perpendicular slide 20, and sliding connection has slide 22 in expansion groove 21, and slide 22 clearance is located expansion groove 21, and slide 22 keep away from perpendicular slide 20 one end and connecting rod 23 fixed connection, perpendicular slide 20 and slide 22 are all connected with pushing down the structure in opposite sides bottom.

The pushing structure comprises pushing blocks 24, rotating shafts 25, pushing rods 26 and torsion springs, wherein the pushing blocks 24 are fixedly connected to the two vertical sliding plates 20 and the sliding plates 22 in one-to-one correspondence, the rotating shafts 25 are fixedly connected to the bottoms of the pushing blocks 24, the pushing rods 26 are coaxially connected to the rotating shafts 25 in a rotating mode, the pushing rods 26 abut against the bottoms of the pushing blocks 24 when rotating to the horizontal plane, and the torsion springs are fixedly connected between the pushing rods 26 and the rotating shafts 25, and the pushing rods 26 are initially in a horizontal state.

The diameter of the contact part between the pressing rod 26 and the film waste edge is smaller, so that when the pressing rod 26 contacts the clamping assembly, the film waste edge is prevented from being directly extruded with the clamping assembly to be damaged.

The clamping assembly comprises a clamping groove 29, clamping blocks 31 and clamping springs 32, wherein the clamping groove 29 is formed in the waste roller 27, two sides in the clamping groove 29 are respectively communicated with an extrusion groove 30, the clamping blocks 31 are respectively connected in the two extrusion grooves 30 in a sliding manner, and the clamping springs 32 are fixedly connected between the clamping blocks 31 and the inner walls of the extrusion grooves 30.

The top of the opposite side of the two clamping blocks 31 is wedge-shaped, so that the pressing rod 26 pushes the two clamping blocks 31 away along the wedge-shaped surface.

The vertical sliding plate 20 and the sliding plate 22 are fixedly connected with a surface cutter 33 at the bottom of one side close to the wind-up roll 4, wherein a surface cutter groove 34 is formed in a clamping block 31 at one side close to the wind-up roll 4, the two surface cutters 33 are matched with the surface cutter groove 34, and a cutting operation is formed at one side, close to the wind-up roll 4, of the film scrap edge through the surface cutter 33, so that the film in the direction of the wind-up roll 4 is prevented from being pulled when the subsequent scrap roll 27 rotates.

During operation, one end of the PE film on the unreeling roller 3 is pulled out, passes through the lower part of the cutter rest 9 and is wound on the reeling roller 4, at the moment, the threaded rod 10 is rotated through the handle 11, and the threaded rod 10 rotates to drive the two sliding blocks 13 to approach or separate from each other, so that the positions of the two slitting cutters 16 are adjusted, and different edge cutting requirements of the film are conveniently completed;

After the position of the sub-cutter 16 is adjusted, two electric telescopic rods 14 are started, the output ends of the electric telescopic rods 14 extend out to drive a sliding frame 15 to move downwards, one end, close to the unreeling roller 3, of the sliding frame 15 drives the sub-cutter 16 to move downwards, so that the sub-cutter 16 is in a working state, wherein the sub-cutter 16 contacts with a film before a recovery mechanism, and the sub-cutter 16 cuts the film and falls into a sub-cutter groove 17;

at the moment, the driving motor 5 is started briefly, the output end of the driving motor 5 drives one transmission gear 6 to rotate, the transmission gear 6 drives the other transmission gear 6 and the driven gear 28 to rotate through the transmission toothed belt 7, so that the slitting knife 16 cuts a film with a certain length, the film waste edge is prevented from being recovered and damaged to the film main body, and meanwhile, the film waste edge is used for adjusting the waste roller 27, so that the clamping groove 29 of the waste roller 27 faces upwards, and the subsequent recovery operation is facilitated;

When the sliding block 13 moves, the sliding frame 15 drives the sliding plate 22 to move, so that the sliding plate 22 extends out of the telescopic groove 21 in the vertical sliding plate 20, and the vertical sliding plate 20 and the sliding plate 22 correspond to cut film scrap edges;

the output ends of the two electric telescopic rods 14 are controlled to extend out for a short time, the slitting knife 16 continues to move downwards to enter the slitting groove 17, the trimming effect on the film is kept, meanwhile, the sliding frame 15 continues to drive the vertical sliding plate 20 and the sliding plate 22 to move downwards, the vertical sliding plate 20 and the sliding plate 22 drive the two pressing assemblies to move downwards, the pressing rods 26 in the two pressing assemblies abut against two sides of the slit film waste edge and push the film waste edge to move downwards, the pressing rods 26 move downwards to push away the two clamping blocks 31 and extend below the two clamping blocks 31, so that the film waste edge is clamped between the two clamping blocks 31, and meanwhile, the face cutters 33 on the vertical sliding plate 20 and the sliding plate 22 cut into the knife grooves 34 on the clamping blocks 31 close to the winding roller 4, and cut off one end of the clamped film waste edge close to the winding roller 4;

then the output ends of the two electric telescopic rods 14 are contracted to the slitting knife 16 to restore the working state, at the moment, under the obstruction of the bottom of the clamping blocks 31, the lower pressure rod 26 rotates against the elastic force of the torsion spring, and is withdrawn from the two clamping blocks 31 to be retracted, so that the recovery preparation operation of the film waste edges is completed;

Finally, the driving motor 5 is controlled to work, the unreeling roller 3 and the reeling roller 4 are driven to rotate, the edge cutting operation of the thin film in conveying is completed under the working of the edge cutting mechanism, meanwhile, the waste roller 27 is driven to rotate, the winding operation of the cut thin film waste edge in conveying is completed, a worker is not required to pull and cut the thin film waste edge, the recovery of the thin film waste edge is automatically completed, and the operation burden of the worker is greatly reduced.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. Edge cutting recovery unit is used in PE film production, its characterized in that includes:

The automatic winding machine comprises a workbench (1), wherein two mounting grooves (2) are formed in two sides of the workbench (1), one mounting groove (2) is rotationally connected with an unwinding roller (3), and the other mounting groove (2) is rotationally connected with a winding roller (4);

the output end of the driving mechanism is connected with the unreeling roller (3) and the reeling roller (4);

The trimming mechanism comprises a trimming cutter frame (9), an adjusting assembly, electric telescopic rods (14) and a slitting cutter (16), wherein the middle part of the workbench (1) is fixedly connected with the trimming cutter frame (9), the trimming cutter frame (9) is connected with the adjusting assembly, the output end of the adjusting assembly is connected with the two electric telescopic rods (14), the adjusting assembly is used for simultaneously adjusting the positions of the two electric telescopic rods (14), the output end of the electric telescopic rods (14) is fixedly connected with a sliding frame (15), and one side, close to the unreeling roller (3), of the sliding frame (15) is fixedly connected with the slitting cutter (16);

The recycling mechanism comprises a pressing component, a waste roller (27) and a clamping component, wherein the input end of the pressing component is connected to one side of a sliding frame (15) away from the unreeling roller (3), a recycling groove (8) is formed in the workbench (1), the waste roller (27) is rotationally connected to the recycling groove (8), one end of the waste roller (27) penetrates through the recycling groove (8), a driven gear (28) is coaxially and fixedly connected to the recycling groove, the driven gear (28) is meshed with the middle of the driving toothed belt (7), the clamping component is connected to the waste roller (27), and the output end of the pressing component is used for driving a film waste edge to enter the output end of the clamping component.

2. The trimming and recycling device for PE film production according to claim 1, wherein the driving mechanism comprises a driving motor (5), a transmission gear (6) and a transmission toothed belt (7), the driving motor (5) is installed on the workbench (1), one ends of the unwinding roller (3) and the winding roller (4) are coaxially and fixedly connected with the transmission gear (6), the output end of the driving motor (5) is coaxially and fixedly connected with one transmission gear (6), and the two transmission gears (6) are sleeved with the same transmission toothed belt (7).

3. The trimming and recycling device for PE film production according to claim 1, wherein the adjusting assembly comprises a threaded rod (10) and sliding blocks (13), a sliding groove (12) is formed in the cutter frame (9), the threaded rod (10) is rotationally connected in the sliding groove (12), two sliding blocks (13) are connected to the threaded rod (10) in a threaded manner, the two sliding blocks (13) are all connected in the sliding groove (12) in a sliding manner, and the two electric telescopic rods (14) are arranged on the two sliding blocks (13) in a one-to-one correspondence manner.

4. A trimming and recovering device for PE film production according to claim 3, characterized in that the screw pitch of the threaded rod (10) and the screw pitch of the threaded connection parts of the two sliding blocks (13) are equal and the screw direction is opposite, one end of the threaded rod (10) penetrates through the sliding groove (12), and is fixedly connected with the handle (11).

5. The trimming and recycling device for PE film production according to claim 1, wherein a cutter separating groove (17) is communicated with one side, close to the unreeling roller (3), of the top of the recycling groove (8), and the cutter separating groove (17) is matched with two cutter separating cutters (16).

6. The trimming and recycling device for PE film production according to claim 1, wherein the pressing component comprises a telescopic plate (19), a connecting rod (23) and a pressing structure, a vertical sliding groove (18) is formed in one side, far away from the unreeling roller (3), of the cutter frame (9), two telescopic plates (19) are connected in a sliding mode in the vertical sliding groove (18), connecting rods (23) are fixedly connected to output ends of the telescopic plates (19), the two connecting rods (23) are connected with the two sliding frames (15) in a one-to-one correspondence mode, pressing structures are connected to bottoms of two ends of the telescopic plates (19), and output ends of the two pressing structures are abutted to two sides of a film waste edge.

7. The trimming and recycling device for PE film production according to claim 6, wherein the telescopic plates (19) comprise vertical sliding plates (20) and sliding plates (22), the vertical sliding plates (20) are slidably connected in the telescopic grooves (21) along the vertical direction, the telescopic grooves (21) are formed in opposite sides of the two vertical sliding plates (20), the sliding plates (22) are slidably connected in the telescopic grooves (21), gaps of the sliding plates (22) are located in the telescopic grooves (21), one ends of the sliding plates (22) away from the vertical sliding plates (20) are fixedly connected with the connecting rods (23), and bottoms of opposite sides of the vertical sliding plates (20) and the sliding plates (22) are connected with the pressing structures.

8. The trimming and recycling device for PE film production according to claim 7, wherein the pressing structure comprises a pressing block (24), a rotating shaft (25), a pressing rod (26) and a torsion spring, the pressing blocks (24) are fixedly connected to the two vertical sliding plates (20) and the sliding plate (22) in one-to-one correspondence, the rotating shaft (25) is fixedly connected to the bottom of the pressing block (24), the pressing rod (26) is coaxially connected to the rotating shaft (25) in a rotating manner, the pressing rod (26) abuts against the bottom of the pressing block (24) when rotating to the horizontal plane, and the torsion spring is fixedly connected between the pressing rod (26) and the rotating shaft (25), and the pressing rod (26) is initially in a horizontal state.

9. The trimming and recycling device for PE film production according to claim 8, wherein the clamping assembly comprises a clamping groove (29), clamping blocks (31) and clamping springs (32), the clamping groove (29) is formed in a waste roller (27), two sides in the clamping groove (29) are communicated with extrusion grooves (30), the clamping blocks (31) are slidably connected in the two extrusion grooves (30), and the clamping springs (32) are fixedly connected between the clamping blocks (31) and the inner walls of the extrusion grooves (30).

10. The trimming and recovering device for PE film production according to claim 9, wherein the vertical sliding plate (20) and the sliding plate (22) are fixedly connected with a surface cutter (33) at the bottom of one side, close to the winding roller (4), of the vertical sliding plate, a surface cutter groove (34) is formed in a clamping block (31) at one side, close to the winding roller (4), of the vertical sliding plate, and the two surface cutters (33) are mutually matched with the surface cutter groove (34).