CN111775497B

CN111775497B - High-permeability plastic bag production device and production process

Info

Publication number: CN111775497B
Application number: CN202010634262.9A
Authority: CN
Inventors: 杨卫华; 罗章; 卓如盛; 王喜云
Original assignee: Henan Ruxiang Packaging Materials Co ltd
Current assignee: Henan Ruxiang Packaging Materials Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2022-05-17
Anticipated expiration: 2040-07-04
Also published as: CN111775497A

Abstract

The invention relates to a high permeability plastic bag production device and a production process, which comprises a frame, wherein the frame is provided with an unreeling device, a punching device and a reeling device, the unwinding device, the punching device and the winding device are used for conveying plastic bags, the unwinding device, the punching device and the winding device are sequentially arranged along the conveying direction of the plastic bags, the punching device comprises a machine body, a cutter holder and a driving assembly, the machine body is fixed on the machine frame, the cutter holder is vertically matched on the machine body in a sliding manner, the driving assembly drives the cutter holder to slide on the machine body, the lower surface of the cutter holder is provided with a transverse groove and a vertical groove, the transverse groove is arranged along the width direction of the plastic bag, the vertical groove is vertical to the transverse groove, the cutter holder is provided with a plurality of cutter holders, the cutter holders are inserted into the transverse groove from the vertical groove, and a cutting ring for cutting the plastic film is arranged on the knife rest, and a fixing component for fixing the knife rest in the transverse groove is arranged on the knife rest. The punching device has the effects of punching a plurality of plastic bags and improving the production efficiency.

Description

High-permeability plastic bag production device and production process

Technical Field

The invention relates to the technical field of plastic bag production devices, in particular to a high-permeability plastic bag production device and a production process.

Background

The plastic bag is in daily use more, and in order to make the product of packing observe easily or ventilative on the plastic bag when packing, punch on the plastic bag usually, it may be according to the size difference of design hole to punch, simultaneously to the plastic bag in the in-process of production, adopts on the plastic film of a meter width to print usually, in the in-process of printing, is provided with a plurality ofly side by side everywhere, distributes on the plastic film according to the size of the plastic bag of printing.

The patent document with the application publication number of CN104175602A discloses a punching device of a bag making machine, which comprises a cross beam arranged between two opposite frame plates in a sliding manner, punching supports are symmetrically arranged on the cross beam, and punching cylinders are fixedly connected to the punching supports; the rotating device is also provided with a longitudinal adjusting rod and guide rods positioned on two sides of the longitudinal adjusting rod between the two frame plates, one end of the longitudinal adjusting rod penetrates through the frame plates and is connected with an adjusting wheel on the outer side of the frame plates, an adjusting gear positioned on the inner side of the frame plates and a locking structure positioned on the outer side of the frame plates are fixedly connected to the longitudinal adjusting rod, and the adjusting gear is meshed with a rack on the frame; the outer side of one side frame plate is fixedly connected with an air cylinder, a piston rod of the air cylinder is connected with a sliding rod, the sliding rod penetrates through the frame plate and is fixedly connected with an inner side mounting block of the frame plate, and the mounting block is fixedly connected with the cross beam.

But in the above-mentioned structure, can only have two to punch at every turn and go on simultaneously, need cut earlier just can punch to the plastic film that sets up to be greater than two wrapping bags, influence efficiency.

Disclosure of Invention

The invention aims to provide a high-permeability plastic bag production device and a production process, which have the effects of punching a plurality of plastic bags and improving the production efficiency.

The above object of the present invention is achieved by the following technical solutions:

a high permeability plastic bag production device, which comprises a frame, wherein the frame is provided with an unreeling device, a punching device and a reeling device, the unwinding device, the punching device and the winding device are used for conveying plastic bags, the unwinding device, the punching device and the winding device are sequentially arranged along the conveying direction of the plastic bags, the punching device comprises a machine body, a cutter holder and a driving assembly, the machine body is fixed on a machine frame, the cutter holder is vertically matched on the machine body in a sliding manner, the driving assembly drives the cutter holder to slide on the machine body, the lower surface of the cutter holder is provided with a transverse groove and a vertical groove, the transverse groove is arranged along the width direction of the plastic bag, the vertical groove is vertical to the transverse groove, the cutter holder is provided with a plurality of cutter holders, the cutter holders are inserted into the transverse groove from the vertical groove, and a cutting ring for cutting the plastic film is arranged on the knife rest, and a fixing component for fixing the knife rest in the transverse groove is arranged on the knife rest.

Through adopting the above-mentioned technical scheme, during the use, be provided with unwinding device in the frame, perforating device and coiling mechanism are used for carrying the plastic bag, when the plastic film passes through perforating device, because the blade holder carries out vertical removal through drive assembly on the organism, make and be connected with the knife rest on the blade holder, the cutting is carried out to the plastic film to the cutting ring of connecting on the knife rest, and the knife rest is through going on to the cross slot from erecting the inslot, carry out position control along the cross slot again, and fix the knife rest in the cross slot through fixed subassembly, thereby can make the knife rest set up a plurality ofly in the cross slot, thereby can punch to a plurality of plastic bags on the plastic film, improve production efficiency.

The invention is further configured to: the fixing assembly comprises two ejector blocks and a bolt, the bolt is in threaded connection with the middle of the tool rest, the ejector blocks are in sliding fit with the tool rest, the sliding direction of the ejector blocks in sliding fit with the tool rest is perpendicular to the length direction of the transverse groove, and the end of the bolt is tapered.

Through adopting above-mentioned technical scheme, the kicking block butt on the toper that the bolt tip formed, the kicking block receives the effort of bolt and slides to both sides and make the kicking block butt on the lateral wall of cross slot to make the knife rest fix on the blade holder.

The invention is further configured to: the machine body is provided with a gooseneck, the gooseneck is connected with an air source, and the end part of the gooseneck points to the cutting position of the plastic film.

Through adopting above-mentioned technical scheme, the tip of gooseneck can be crooked to different positions as required to the tip of adjustable gooseneck makes the tip of gooseneck correspond to the position of cutting, conveniently breaks away from the plastic film with the slitter edge of downcutting.

The invention is further configured to: the driving assembly comprises a driving motor and a cam, the driving motor is fixed on the machine body, the cam is installed at the end of the driving motor and abuts against the upper surface of the tool apron, a reset spring is arranged below the tool apron, and the upper end of the reset spring abuts against the tool apron.

Through adopting above-mentioned technical scheme, can rotate the cam under driving motor's the effect, the cam butt is at the upper surface of blade holder to when making the cam rotate, the cam drives down to the blade holder, can make the blade holder lift under the effect of reset spring simultaneously.

The invention is further configured to: unwinding device includes physiosis axle, rotor arm and mount pad, and mount pad sliding fit is in the frame, the one end of rotor arm is rotated and is connected on the mount pad, and the other end is used for installing the physiosis axle, the middle part of rotor arm is provided with the lifting pneumatic cylinder, the one end of lifting pneumatic cylinder is rotated and is connected on the mount pad, and the other end is rotated and is connected on the rotor arm.

Through adopting above-mentioned technical scheme, be connected with the lifting pneumatic cylinder on the rotor arm, can keep away from the one end of mount pad with the rotor arm through the lifting pneumatic cylinder and rotate downwards to make the rotor arm can the easy to assemble physiosis axle, and lift up the epaxial plastic film of messenger physiosis through the lifting pneumatic cylinder with the rotor arm and break away from ground.

The invention is further configured to: be provided with the slide rail in the frame, the slide rail level sets up and along the width direction of plastic bag, mount pad sliding fit is on the slide rail, be provided with the screw rod in the frame, the screw rod rotates to be connected in the frame, screw rod and slide rail parallel arrangement, screw rod and mount pad threaded connection, the tip of screw rod is provided with servo motor, be provided with laser sensor in the frame, laser sensor is connected with the servo motor electricity.

Through adopting above-mentioned technical scheme, the slide rail is fixed in the frame, and mount pad sliding fit is provided with the screw rod in the frame on the slide rail, and the screw rod is parallel with the slide rail, with mount pad and screw rod threaded connection to after laser sensor detects the position of plastic film, remove the mount pad through the screw rod, make the plastic film can adjust on the slide rail, reduce the plastic film and take place the off tracking.

The invention is further configured to: the utility model discloses a pneumatic expansion shaft, including rotor arm, mounting seat, slide block, bayonet socket, pressure spring, connecting block, pressure spring, directional bayonet socket of effort, sliding fit is provided with the sliding block in the mounting groove, has seted up the mounting groove to the rotor arm one end of keeping away from the mounting seat, and sliding fit is provided with the bayonet socket on the sliding block, is provided with in the bayonet socket and presss from both sides the fixture block of tight inflatable shaft with the bayonet socket cooperation, the fixture block is connected with the pressure spring, and the directional bayonet socket of effort that the pressure spring acts on the fixture block, sliding fit is provided with the connecting block on the sliding block, and the slip direction perpendicular to sliding block on the rotor arm of connecting block on the sliding block, when the inflatable shaft was pressed from both sides in sliding block and fixture block cooperation, a part card of connecting block was on the rotor arm.

Through adopting above-mentioned technical scheme, the mounting groove is seted up to the one end that the mount pad was kept away from to the rotor arm, is provided with the sliding block in the mounting groove, when sliding the sliding block to the direction of keeping away from the mounting groove, conveniently puts into the rotor arm with the physiosis axle, then removes the sliding block, when making the connecting block card on the sliding block on the rotor arm, can make sliding block and fixture block press from both sides the physiosis axle to make things convenient for the installation of physiosis axle, can utilize the frictional force to the physiosis axle simultaneously, make the physiosis axle to the plastic film tensioning.

The invention is further configured to: the winding device comprises a winding shaft and a supporting hydraulic cylinder, two ends of the winding shaft are respectively provided with a driven gear, a driving gear is installed on the rack and meshed with the driven gear, the supporting hydraulic cylinder is vertically arranged, the upper end of the supporting hydraulic cylinder is rotatably connected with a supporting gear, the supporting gear is meshed with the driven gear, and the supporting gear and the driving gear are arranged at intervals.

By adopting the technical scheme, driven gears are installed at two ends of the winding shaft, the driving gear is installed on the rack, the driving gear drives the driven gears to rotate, the supporting gear is matched with the driving gear to support the driven gears on the driving gear and the supporting gear, and the supporting gear can be automatically put down after falling down through the supporting hydraulic cylinder.

The invention is further configured to: a compression roller is arranged above the winding shaft, bearing seats are arranged at two ends of the compression roller, a compression hydraulic cylinder is fixedly arranged on the rack, and the lower end of the compression hydraulic cylinder is fixed on the bearing seats.

Through adopting above-mentioned technical scheme, the rolling axle top is provided with the pinch roller, extrudees the plastic film through the pinch roller, avoids the rolling axle to break away from driving gear and supporting gear.

A production process of a high-permeability plastic bag comprises the step of adjusting the number of cutting rings to adapt to the number of holes punched in the plastic film.

Through adopting above-mentioned technical scheme, adjust through the quantity to the cutting ring to can cut the plastic film of a plurality of wrapping bags, improve production efficiency.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the unwinding device, the punching device and the winding device are arranged on the rack and used for conveying plastic bags, when a plastic film passes through the punching device, the cutter holder vertically moves on the machine body through the driving assembly, so that the cutter holder is connected with the cutter rest, the circular cutter connected to the cutter rest cuts the plastic film, the cutter rest moves into the transverse groove from the vertical groove and then adjusts the position along the transverse groove, and the cutter rest is fixed in the transverse groove through the fixing assembly, so that a plurality of cutter rests can be arranged in the transverse groove, a plurality of plastic bags on the plastic film can be punched, and the production efficiency is improved;

2. the end part of the gooseneck can be bent to different positions according to requirements, so that the end part of the gooseneck can be adjusted to enable the end part of the gooseneck to correspond to the cutting position, and the cut waste edge can be conveniently separated from the plastic film;

3. the plastic film adjusting device is fixed on the rack through the sliding rail, the mounting seat is in sliding fit with the sliding rail, the screw rod is arranged on the rack and parallel to the sliding rail, and the mounting seat is in threaded connection with the screw rod, so that after the laser sensor detects the position of a plastic film, the mounting seat is moved through the screw rod, the plastic film can be adjusted on the sliding rail, and the plastic film deviation is reduced.

Drawings

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

FIG. 2 is a schematic view of the overall cross-sectional configuration of the present invention;

fig. 3 is a schematic overall structure diagram of the unwinding device;

FIG. 4 is a schematic view showing an internal structure of the rotating arm;

FIG. 5 is a schematic view of a cutting body of the punching device;

FIG. 6 is a cross-sectional view of the tool holder;

fig. 7 is a schematic view of the overall structure of the winding device.

In the figure, 1, a frame; 2. an unwinding device; 21. an inflatable shaft; 22. a rotating arm; 221. mounting grooves; 222. a card slot; 23. a mounting seat; 24. lifting the hydraulic cylinder; 25. a slider; 251. a bayonet; 252. a placement groove; 26. a guide bar; 261. a clamping block; 262. a rubber pad; 27. connecting blocks; 28. a spring; 29. a pressure spring; 3. a tensioning device; 4. a punching device; 41. a body; 42. a tool apron; 421. a transverse groove; 422. a vertical slot; 43. a drive assembly; 431. a drive motor; 432. a cam; 433. a reset spring; 44. a tool holder; 45. a top block; 46. a bolt; 47. cutting with a ring cutter; 48. a gooseneck; 5. a winding device; 501. a winding shaft; 502. a driven gear; 503. a driving gear; 504. a support gear; 505. a support hydraulic cylinder; 506. a sprocket; 507. a chain; 508. an electric motor; 509. a pressure roller; 510. a compaction hydraulic cylinder; 511. a supporting seat; 512. a bearing seat; 6. a plastic film; 71. a slide rail; 72. a screw; 73. a servo motor; 74. a laser sensor.

Detailed Description

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

Referring to fig. 1 and 2, the high permeability plastic bag production device disclosed by the invention comprises a frame 1, wherein an unwinding device 2, a tensioning device 3, a punching device 4 and a winding device 5 are arranged on the frame 1, the unwinding device 2, the tensioning device 3, the punching device 4 and the winding device 5 are used for conveying a plastic film 6, and the unwinding device 2, the tensioning device 3, the punching device 4, the tensioning device 3 and the winding device 5 are sequentially arranged along the conveying direction of the plastic film 6.

Referring to fig. 1 and 3, the unwinding device 2 includes an air inflation shaft 21 and two rotating arms 22, a mounting seat 23 is arranged on the frame 1, the two rotating arms 22 are connected to the mounting seat 23, the two rotating arms 22 are respectively located on two sides of the mounting seat 23 and are arranged in parallel to each other, one end of each rotating arm 22 is rotatably connected to the mounting seat 23, the other end of each rotating arm 22 is used for mounting the air inflation shaft 21, a rolled plastic film 6 is arranged on the air inflation shaft 21, and the plastic film 6 on the air inflation shaft 21 is unwound in the rotating process of the air inflation shaft 21. The middle part of rotor 22 is provided with lifting hydraulic cylinder 24, lifting hydraulic cylinder 24's one end rotates to be connected on mount pad 23, the other end rotates to be connected on rotor 22, when lifting hydraulic cylinder 24 during operation, can rotate rotor 22 round with the turning point of mount pad 23, when making rotor 22 rotate downwards, can conveniently install physiosis axle 21 on rotor 22, then when upwards rotating rotor 22, rotor 22 can lift physiosis axle 21, thereby it is more convenient to make installation physiosis axle 21 on the rotor 22.

Referring to fig. 3 and 4, an end of the rotating arm 22 away from the mounting seat 23 is provided with a mounting groove 221, the mounting groove 221 is provided with a sliding block 25 in a sliding fit manner, the sliding block 25 is provided with a bayonet 251, the bayonet 251 can be provided in a V shape or a U shape, a side of the sliding block 25 where the bayonet 251 is provided faces a bottom of the mounting groove 221, and the sliding block 25 is provided with a direction of the bayonet 251 along the sliding direction of the mounting groove 221 along the sliding direction of the sliding block 25. The guide rod 26 is arranged on the rotating arm 22, the guide rod 26 is in sliding fit with the rotating arm 22, the end of the guide rod 26 points to the bayonet 251, a clamping block 261 is arranged at one end, pointing to the bayonet 251, of the guide rod 26, the clamping block 261 is located in the bayonet 251, the clamping block 261 is arranged in an arc shape, a rubber pad 262 is arranged on the inner side face, in the arc shape, of the clamping block 261, the rubber pad 262 is made of wear-resistant materials, and the rubber pad 262 and the bayonet 251 of the sliding block 25 are arranged oppositely to clamp the inflatable shaft 21. A connecting block 27 is arranged on the sliding block 25, a placing groove 252 is arranged on the sliding block 25, the connecting block 27 is slidably fitted in the placing groove 252, the sliding direction of the connecting block 27 in the placing groove 252 is perpendicular to the sliding direction of the sliding block 25 on the rotating arm 22, a spring 28 is arranged in the placing groove 252, the lower end of the spring 28 abuts against the bottom of the placing groove 252, the upper end of the spring 28 abuts against the connecting block 27, when the sliding block 25 slides along the rotating arm 22 to clamp the inflatable shaft 21 with the clamping block 261, a clamping groove 222 is arranged on the rotating arm 22 at a position corresponding to the connecting groove, the connecting block 27 can be inserted into the clamping groove 222, under the action force of the spring 28, a part of the connecting block 27 abuts against the clamping groove 222, and the other part is positioned in the connecting groove, so that the sliding block 25 can be fixed on the rotating arm 22, and the connecting block 27 can be separated from the clamping groove 222 by pressing the connecting block 27, the slide block 25 is slid on the pivot arm 22 for mounting the inflator shaft 21 to the pivot arm 22. Meanwhile, a compression spring 29 is arranged on the guide rod 26, one end of the compression spring 29 is abutted to the clamping block 261, the acting force of the compression spring 29 acting on the clamping block 261 is directed to the bayonet 251, and when the air inflation shaft 21 is installed between the bayonet 251 and the rubber pad 262, the compression spring 29 is in a compressed state.

Referring to fig. 3, a slide rail 71 is arranged on the frame 1, the slide rail 71 is horizontally arranged and perpendicular to the conveying direction of the plastic film 6, the slide rail 71 is fixed on the frame 1, the cross section of the slide rail 71 is provided with a T shape, and the mounting seat 23 is slidably fitted on the slide rail 71. Be provided with screw rod 72 on frame 1, the length direction of screw rod 72 and the length direction parallel arrangement of slide rail 71, the both ends of screw rod 72 are rotated and are connected on frame 1, one end at screw rod 72 is provided with servo motor 73, the output of servo motor 73 and the coaxial fixed setting of the tip of screw rod 72, servo motor 73 can drive screw rod 72 and rotate, with mount pad 23 threaded connection on screw rod 72, make screw rod 72 can drive mount pad 23 and remove, be provided with laser sensor 74 on frame 1, laser sensor 74 is connected with servo motor 73 electricity, detect the removal off tracking volume of plastic film 6 through laser sensor 74, then drive screw rod 72 by servo motor 73 and rotate, make mount pad 23 bulk movement, thereby can reduce the off tracking volume of plastic film 6.

Referring to fig. 5 and 6, the punching apparatus 4 includes a body 41, a holder 42, and a driving assembly 43, the body 41 is fixed on the frame 1, two sides of the holder 42 are slidably fitted on the body 41, a reset spring 433 is disposed above the holder 42, the reset spring 433 is vertically disposed, an upper end of the reset spring 433 abuts on the holder 42, and a lower end of the reset spring 433 abuts on the body 41. The knife holder 42 can be lifted by the reset spring 433, the driving assembly 43 includes a driving motor 431 and a cam 432, the driving motor 431 is fixed on the machine body 41, the cam 432 is coaxially fixed at the output end of the driving motor 431, the contour of the cam 432 abuts against the upper surface of the knife holder 42, and the knife holder 42 is pressed downwards by the cam 432 and punches the plastic film 6 flowing below the knife holder 42. The cutter holder 42 is provided with a cutter rest 44, the lower surface of the cutter holder 42 is provided with a transverse groove 421 and a vertical groove 422, the transverse groove 421 is arranged along the width direction of the plastic film 6, the vertical groove 422 is perpendicular to the transverse groove 421, the transverse groove 421 is communicated with the vertical groove 422, the cutter rest 44 is inserted into the vertical groove 422 from one end of the vertical groove 422 far away from the transverse groove 421, then the position of the cutter rest 44 is adjusted by moving along the transverse groove 421, the cutter rest 44 is provided with a ring cutter 47, the plastic film 6 is cut through the ring cutter 47, two top blocks 45 are arranged on the cutter rest 44, the two top blocks 45 are in sliding fit on the cutter rest 44, the sliding direction of the two top blocks 45 on the cutter rest 44 is perpendicular to the length direction of the transverse groove 421, the middle part of the cutter rest 44 is in threaded connection with the bolt 46, the end part of the bolt 46 is provided with a taper, the end part of the bolt 46 is abutted against the top block 45, and one end part of the top block 45 close to the bolt 46 is provided with an inclined surface, by bringing the end of the bolt 46 into contact with the inclined surface, when the bolt 46 is rotated, the bolt 46 can be pressed against the two top blocks 45 and moved in the direction of the side wall of the lateral groove 421, and brought into contact with the side wall of the lateral groove 421, whereby the position of the tool holder 44 in the lateral groove 421 can be fixed, and when the bolt 46 is loosened, the tool holder 44 can be adjusted in the lateral groove 421, and the plurality of tool holders 44 can be attached to the vertical groove 422. The machine body 41 is further provided with a plurality of gooseneck pipes 48, the gooseneck pipes 48 are connected with an air source, one end, far away from the air source, of each gooseneck pipe 48 points to the cutting position of the plastic film 6, and waste sheets which are not separated from the plastic film 6 after cutting can be blown off.

Referring to fig. 7, the winding device 5 includes a winding shaft 501, the winding shaft 501 is used for winding the cut plastic film 6, two ends of the winding shaft 501 are respectively provided with a driven gear 502, the rack 1 is provided with a driving gear 503 and a supporting gear 504, the driving gear 503 and the supporting gear 504 are both meshed with the driven gear 502, the driving gear 503 and the supporting gear 504 are arranged at intervals, the driving gear 503 is connected with a sprocket 506, the sprocket 506 is connected with a chain 507, the other end of the chain 507 is connected to a motor 508, the end of the motor 508 is coaxially fixed with another sprocket 506, the driving gear 503 is driven by the motor 508 to rotate, so that the driven gear 502 can rotate, the winding shaft 501 mounted on the driven gear 502 is rotated, and the plastic film 6 is wound. The driven gear 502 is provided with a supporting seat 511, the driven gear 502 is rotatably connected to the supporting seat 511, a supporting hydraulic cylinder 505 is arranged below the supporting seat 511, the supporting hydraulic cylinder 505 is vertically arranged, the upper end of the supporting hydraulic cylinder 505 is fixed to the supporting seat 511, when the supporting hydraulic cylinder 505 is contracted, the supporting gear 504 moves downwards, the driven gear 502 can be rotated towards the supporting gear 504, and the winding shaft 501 wound with the plastic film 6 can be taken down from the rack 1. Be provided with pinch roller 509 in the top of rolling axle 501, pinch roller 509 is on a parallel with rolling axle 501, pinch roller 509's both ends are provided with bearing frame 512 respectively, make pinch roller 509's both ends rotate and connect on bearing frame 512, be provided with on the bearing frame 512 and compress tightly pneumatic cylinder 510, compress tightly the vertical setting of pneumatic cylinder 510, compress tightly pneumatic cylinder 510 fixes on frame 1, the output of compressing tightly pneumatic cylinder 510 is fixed on bearing frame 512, through compressing tightly pneumatic cylinder 510 with pinch roller 509 butt on the plastic film 6 of rolling, thereby can make the more neat of plastic film 6 rolling.

The invention also discloses a production process of the high-permeability plastic bag, which is characterized in that the plastic film 6 is punched by adopting the production device of the high-permeability plastic bag, and the number of the ring cutters 47 is adjusted to adapt to the number of the punched holes on the plastic film 6.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a high permeability plastic bag apparatus for producing, includes frame (1), is provided with unwinding device (2), perforating device (4) and coiling mechanism (5) in frame (1), unwinding device (2), perforating device (4) and coiling mechanism (5) are used for carrying the plastic bag, unwinding device (2), perforating device (4) and coiling mechanism (5) set gradually its characterized in that along the direction of delivery of plastic bag: the punching device (4) comprises a machine body (41), a tool apron (42) and a driving assembly (43), the machine body (41) is fixed on the rack (1), the tool apron (42) is vertically matched on the machine body (41) in a sliding manner, the driving assembly (43) drives the tool apron (42) to slide on the machine body (41), a transverse groove (421) and a vertical groove (422) are formed in the lower surface of the tool apron (42), the transverse groove (421) is formed in the width direction of the plastic bag, the vertical groove (422) is perpendicular to the transverse groove (421), a plurality of tool rests (44) are arranged on the tool apron (42), the tool rests (44) are inserted into the transverse groove (421) from the vertical groove (422), a circular knife (47) for cutting the plastic film (6) is arranged on the tool rests (44), and a fixing assembly for fixing the tool rests (44) in the transverse groove (421) is arranged on the tool rests (44);

the fixing assembly comprises two ejector blocks (45) and a bolt (46), the bolt (46) is in threaded connection with the middle of the tool rest (44), the ejector blocks (45) are in sliding fit with the tool rest (44), the sliding direction of the ejector blocks (45) in sliding fit with the tool rest (44) is perpendicular to the length direction of the transverse groove (421), and the end part of the bolt (46) is arranged to be tapered;

the bolt (46) extrudes the two top blocks (45) to move towards the side wall direction of the transverse groove (421);

the cutting ring (47) and the tool rest (44) are integrally arranged.

2. The apparatus for manufacturing high permeability plastic bag according to claim 1, wherein: the machine body (41) is provided with a gooseneck (48), the gooseneck (48) is connected with an air source, and the end part of the gooseneck (48) points to the cutting position of the plastic film (6).

3. The apparatus for manufacturing high permeability plastic bag according to claim 1, wherein: the driving assembly (43) comprises a driving motor (431) and a cam (432), the driving motor (431) is fixed on the machine body (41), the cam (432) is installed at the end of the driving motor (431), the cam (432) abuts against the upper surface of the tool apron (42), a reset spring (433) is arranged below the tool apron (42), and the upper end of the reset spring (433) abuts against the tool apron (42).

4. The apparatus for manufacturing high permeability plastic bag according to claim 1, wherein: unwinding device (2) are including physiosis axle (21), rotor arm (22) and mount pad (23), and mount pad (23) sliding fit is on frame (1), the one end of rotor arm (22) is rotated and is connected on mount pad (23), and the other end is used for installing physiosis axle (21), the middle part of rotor arm (22) is provided with lifting pneumatic cylinder (24), the one end of lifting pneumatic cylinder (24) is rotated and is connected on mount pad (23), and the other end is rotated and is connected on rotor arm (22).

5. The apparatus for producing high permeability plastic bags according to claim 4, wherein: be provided with slide rail (71) on frame (1), slide rail (71) level sets up and along the width direction of plastic bag, mount pad (23) sliding fit is on slide rail (71), be provided with screw rod (72) on frame (1), screw rod (72) rotate to be connected on frame (1), screw rod (72) and slide rail (71) parallel arrangement, screw rod (72) and mount pad (23) threaded connection, the tip of screw rod (72) is provided with servo motor (73), be provided with laser sensor (74) on frame (1), laser sensor (74) are connected with servo motor (73) electricity.

6. The apparatus for producing high permeability plastic bags according to claim 4, wherein: mounting groove (221) have been seted up to the one end that rotor arm (22) kept away from mount pad (23), and sliding fit is provided with sliding block (25) in mounting groove (221), has seted up bayonet socket (251) on sliding block (25), is provided with in bayonet socket (251) and presss from both sides fixture block (261) of tight physiosis axle (21) with bayonet socket (251) cooperation, fixture block (261) are connected with pressure spring (29), and directional bayonet socket (251) of effort that pressure spring (29) were used in on fixture block (261), sliding fit is provided with connecting block (27) on sliding block (25), and the sliding direction of connecting block (27) on sliding block (25) is perpendicular to the sliding direction of sliding block (25) on rotor arm (22), and when physiosis axle (21) were pressed from both sides in the cooperation of sliding block (25) and fixture block (261), a part card of connecting block (27) is on rotor arm (22).

7. The apparatus for manufacturing high permeability plastic bag according to claim 1, wherein: coiling mechanism (5) are including rolling axle (501) and support pneumatic cylinder (505), the both ends of rolling axle (501) are provided with a driven gear (502) respectively, install driving gear (503) on frame (1), driving gear (503) and driven gear (502) meshing, support the vertical setting of pneumatic cylinder (505), the upper end of supporting pneumatic cylinder (505) is rotated and is connected with a supporting gear (504), supporting gear (504) and driven gear (502) meshing, supporting gear (504) and driving gear (503) interval set up.

8. The apparatus for producing high permeability plastic bags according to claim 7, wherein: a compression roller (509) is arranged above the winding shaft (501), bearing seats (512) are arranged at two ends of the compression roller (509), a compression hydraulic cylinder (510) is fixedly arranged on the rack (1), and the lower end of the compression hydraulic cylinder (510) is fixed on the bearing seats (512).

9. A production process of a high permeability plastic bag is characterized by comprising the following steps: use of the apparatus for manufacturing plastic bags with high permeability as defined in any of claims 1 to 8, comprising adjusting the number of cutting rings (47) to suit the number of perforations made in the plastic film (6).