CN115107320B

CN115107320B - Melt cutting guiding device and method applicable to plastic packaging bags with films of different thicknesses

Info

Publication number: CN115107320B
Application number: CN202210871886.1A
Authority: CN
Inventors: 刘方; 王玉英; 赵伟
Original assignee: Lianyungang Lefu New Material Co ltd
Current assignee: Lianyungang Lefu New Material Co ltd
Priority date: 2022-07-23
Filing date: 2022-07-23
Publication date: 2023-09-26
Anticipated expiration: 2042-07-23
Also published as: CN115107320A

Abstract

The utility model provides a melt cutting guiding device and method suitable for different thickness film bodies of plastic packaging bags, belongs to plastic bag production technical field, and in order to solve the problem that when the existing melt cutting guiding device adjusts the adaptation interval facing different thickness film bodies, the film body tensioning force can not be effectively ensured; after the film body is melt-cut by the existing film body melt-cutting guide device, the problem that the film body is easily damaged due to the fact that the film body break point is easily stuck to a melt-cutting knife; according to the invention, the guide assembly is arranged in the through hole of the machine base, the driving motor is matched with the adjusting screw rod, the moving sleeve and the driving rod to lift the second guide roller, the second guide roller lifts the film body to be extruded and attached to the first guide roller in a staggered manner, the misplacement extrusion of the guide roller is utilized to adapt to different thicknesses of the film body and bend and tension the film body, and when the melt cutting mechanism is used for melt cutting the film body, the cleaning blades and anti-sticking pieces arranged on two sides of the shell cover are utilized to clean and flap the melt cutting end of the film body; the invention is beneficial to adapting to the guiding of the film bodies with different thicknesses and avoids the problem of fusion cutting and sticking of the film bodies.

Description

Melt cutting guiding device and method applicable to plastic packaging bags with films of different thicknesses

Technical Field

The invention relates to the technical field of plastic bag production, in particular to a melt cutting guiding device and method for film bodies with different thicknesses, which are suitable for plastic packaging bags.

Background

The plastic packaging bag is a packaging bag which uses plastic as a raw material and is used for producing various articles in daily life and industrial production, but the convenience brings long-term harm. The common plastic packaging bag is mostly made of polyethylene film, and the film is nontoxic, so that the plastic packaging bag can be used for containing food. Still another film is made of polyvinyl chloride, which is itself nontoxic, but the additives added according to the use of the film are often substances harmful to human body, and have a certain toxicity. Therefore, the film and the plastic bag made of the film are not suitable for containing food.

The plastic packaging bag is manufactured by hot pressing and cutting after fusing and cutting film bodies, and when fusing and cutting film bodies with different thicknesses, the adaptation interval of the film body conveying guide device needs to be adjusted, so that the guide device ensures the flatness of film body conveying. However, when the conventional melt cutting guide device faces films with different thicknesses and adjusts the adaptation distance, the retention of the tensioning force of the guide device on the films cannot be effectively ensured, and the tensioning force of the guide device on the films needs to be adjusted again to avoid the deviation of the guide device, so that the guide device is troublesome; in addition, after the film body is fused and cut by the existing film body fusing and cutting guide device, the breakpoint of the film body is easy to fuse and adhere to the fusing and cutting knife, and the fusing and cutting knife can cause pulling damage to the adhered film body after being reset by punching.

Therefore, we propose a melt cutting guiding device and method for film bodies with different thicknesses, which are suitable for plastic packaging bags.

Disclosure of Invention

The invention aims to provide a film body fusion cutting guide device and method with different thicknesses, which are suitable for plastic packaging bags, and aims to solve the problems that in the background art, when the existing fusion cutting guide device faces films with different thicknesses and adjusts the adaptation distance, the tensioning force of the films cannot be effectively ensured, the tensioning force of the guide device to the films needs to be adjusted again, and the existing film body fusion cutting guide device is easy to fuse and adhere to a fusion cutter at a film body breakpoint after fusion cutting is carried out on the films, and the fusion cutter is easy to cause pulling damage to the adhered films after punching and resetting.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a different thickness film body fuse-cut guider suitable for plastic packaging bag, including the frame and the intelligent control ware of fixed connection on the frame lateral wall, the frame end bottom fixedly connected with fixed plate on one side of the intelligent control ware, fixedly connected with driving motor on the outer wall of frame, driving motor output fixedly connected with accommodate the lead screw, it laminates the suspension in the bottom of frame to its terminal after the accommodate the lead screw runs through the fixed plate, the frame corresponds to the drive motor lateral wall on set up the through hole, fixedly connected with guide assembly between the both sides inner wall of through hole, the intercommunication groove has been set up on the through hole bottom plate of guide assembly lower extreme, the bottom of guide assembly extends to the frame lower extreme through the intercommunication groove, and the guide assembly end and accommodate the lead screw activity link to each other, fixedly connected with backup pad on the outer wall of frame keep away from driving motor one end, the backup pad sets up in the through hole below, backup pad top fixedly connected with fuse-cut mechanism, the frame is kept away from fixedly connected with U type hanger plate on the outer wall of through hole port top department of fuse-cut mechanism one end, the lower extreme both sides of U type hanger plate fixedly connected with thickness sensor respectively, thickness sensor suspension in the through hole outside the through hole port;

The guide assembly comprises a fixed top frame fixedly connected between inner walls at two sides of a through hole and a first guide roller movably arranged between inner walls at two ends of the fixed top frame, four corners of the bottom of the fixed top frame are fixedly connected with guide rods, the lower ends of the guide rods movably penetrate through the four corners of the movable bottom frame, buffer springs are wound on the outer walls of the guide rods between the movable bottom frame and the fixed top frame, second guide rollers are uniformly and movably arranged between the inner walls at two ends of the movable bottom frame, a positioning cross rod is fixedly connected at the middle part of the lower end of the movable bottom frame, the positioning cross rod is suspended at the bottom of the movable bottom frame, a driving rod is movably connected to the top of a movable sleeve, the movable sleeve is movably clamped in the through hole, and the lower ends of the movable sleeve are movably sleeved on the outer walls of an adjusting screw rod after extending to the bottom of the through hole.

Further, the first guide roller comprises a roller and a semi-annular air cushion fixedly sleeved on the outer walls of the end heads on two sides of the roller, an air guide ring is embedded and installed on the outer wall of the middle part of the roller, the air guide ring is communicated with the semi-annular air cushion through an air guide pipe arranged inside the roller, mounting grooves are uniformly formed in the outer walls of the roller on two sides of the air guide ring at intervals, piston air cylinders which are communicated are fixedly connected on the outer walls of two sides of the mounting grooves in the mounting grooves, a piston rod is movably sleeved in a port at the tail end of the piston air cylinder, and a smoothing scraper is uniformly and fixedly connected on the outer wall of the piston rod at intervals.

Further, the first guide rollers are arranged in parallel with the second guide rollers in a staggered manner, the structural composition of the first guide rollers is identical to that of the second guide rollers, a unidirectional air inlet hole is formed in the outer wall of the semi-annular air cushion, a notch is formed in one end of the semi-annular air cushion, the length of the notch is one third of the circumference of the rotating roller, and the diameter of the air guide ring is identical to that of the rotating roller.

Further, the axostylus axostyle of first guide roll one end runs through and extends to the outside of fixed top frame, its end fixedly connected with gear, cup joint mutually through same root chain between the adjacent gear, the terminal axostylus axostyle of first guide roll of fixed top frame outside middle part department extends to the frame, it is connected with the rotating electrical machines output, and the axostylus axostyle of second guide roll one end runs through and extends to the removal underframe outside, its end cup joints mutually through gear and chain, the terminal axostylus axostyle of second guide roll of removal underframe outside middle part department extends to its outside through the bar through-hole on the frame lateral wall, the terminal axostylus axostyle of second guide roll is connected with the rotating electrical machines output.

Further, smooth the scraper blade including fixed cover shell on the piston rod outer wall and set up the installing port on the casing lateral wall, the installing port sets up and is close to top department on the outer wall of casing one side of keeping away from the air guide ring, and the activity is provided with the deflector between the installing port lateral wall, the deflector extends to inside the casing, the deflector end inside the casing is connected with shells inner wall through the torsional spring, fixedly connected with orientation wheel on the shells inner wall of torsional spring lower extreme, and deflector end bottom fixedly connected with adjusts the stay cord, adjust the stay cord and wear to wind after on the orientation wheel outer wall, its end fixedly connected with eccentric ball, when the torsional spring keeps normal diastole, the outside deflector end suspension of casing is in mounting groove port department, adjust the stay cord and be in the state of tightening this moment, the eccentric ball laminating orientation wheel lower extreme shells inner wall sets up.

Further, fuse cut mechanism includes the die-cut board of fixed connection in backup pad top and fixed connection in the U type seat at die-cut board one end top, and the activity is provided with spacing roller between the U type seat lateral wall, and spacing roller suspension is kept away from the top of frame one end in the backup pad, and the pneumatic lift module of U type seat upper end middle part department fixedly connected with, the activity is provided with the removal mount pad on the outer wall of pneumatic lift module, and the bottom fixedly connected with of removal mount pad fuses cut the piece, and die-cut board upper end corresponds to fuse cut piece department and is provided with lets the aqueduct.

Further, melt the piece and include fixed jib and the installation shell cover of fixed jib bottom in fixed connection in the removal mount pad bottom, installation shell cover roof lower extreme fixedly connected with elastomeric element, elastomeric element's lower extreme fixedly connected with removes the connector, remove connector bottom fixedly connected with and cut the cutter, cut the lower extreme of cutter and run through and extend to the installation shell cover lower extreme, and install fixedly connected with constant temperature electric heating block on the outer wall of cutting cutter both sides of shell cover bottom port department, fixedly connected with locating cover on the outer wall of installation shell cover both sides, the locating cover is linked together with the installation shell cover through the intercommunicating pore.

Further, the slope of locating cover bottom is provided with the installation cover, the clearance blade has been cup jointed to the activity in the installation cover, the terminal slope of clearance blade corresponds the cutter setting, and the clearance blade other end extends to the locating cover bottom inside, its terminal fixedly connected with spring rod, spring rod and locating cover roof lower extreme fixedly connected with coiling board of the adjacent department of clearance blade link, coiling board lower extreme press close to suspension in spring rod adjacent department, the terminal fixedly connected with cable wire of spring rod, the cable wire wears to wind from coiling board bottom after, its terminal extends to the installation shell inside through the intercommunicating pore, and the cable wire is from terminal and removal connector lateral wall fixed connection, the antiseized adhesion piece of installation cover bottom fixedly connected with.

Further, antiseized glutinous piece includes fixed cover and the fixed positioning tube of fixed connection on fixed cover bottom plate in fixed cover bottom, the L type clamp plate has been cup jointed to the activity in the positioning tube, the lower extreme of L type clamp plate is suspended in fixed cover bottom, and the L type clamp plate top fixed connection in first magnetic path of positioning tube upper end, the relative installation cover roof lower extreme fixedly connected with second magnetic path in first magnetic path top, the second magnetic path sets up with first magnetic path is the same name magnetic pole relatively, fixedly connected with connecting rod on the L type clamp plate lateral wall of first magnetic path lower extreme, the relative installation cover bottom of connecting rod is provided with the rotary drum through the support bar activity, fixedly connected with slaps the board on the outer wall that the rotary drum is close to clearance blade one side, fixedly connected with fixed rope on the rotary drum lateral wall that slaps board adjacent department, the end of fixed rope runs through and extends to the inside of fixed cover and links to each other with the connecting rod is fixed, the axostylus axostyle runs through and extends to the inside cavity of the inside the rotary drum, twine is provided with the clockspring on the inside the rotary drum axostylus axostyle.

The invention provides another technical scheme that: the application method of the film melt cutting guide device suitable for the plastic packaging bags with different thicknesses comprises the following implementation steps:

S1: after the film body enters from the side end of the machine seat through the inlet of the through opening, the film body passes through between the first guide roller and the second guide roller on the movable bottom frame and the fixed top frame, then the film body passes out from the outlet and is placed on the punching plate, and the film body is connected with the traction device after passing and winding from the limiting roller;

s2: the thickness sensor detects the thickness of the film body and transmits information to the intelligent controller, the driving motor is started to drive the movable sleeve to move by using the adjusting screw rod, the movable sleeve drives the driving rod to deflect and move to lift the movable bottom frame, and the movable bottom frame drives the second guide roller to lift the film body to alternately squeeze the bottom end of the first guide roller, so that the film body is guided and clamped and bent;

s3: when the film body is pulled and slid between the first guide roller and the second guide roller, semi-annular air cushions on the outer walls of the adjacent first guide roller and second guide roller are mutually and intermittently rotated and extruded, gas is conveyed into the gas guide ring through the gas guide pipe after the semi-annular air cushions are extruded, and the gas guide ring dredges the gas into the piston air cylinder to push the piston rod to move back and forth;

s4: when the piston rod drives the smoothing scraper to reciprocate, the eccentric ball in the shell drives the deflection plate to deflect by utilizing inertia to pull the adjusting stay rope, the deflection plate compresses the torsion spring to extend to the outside of the port of the mounting groove on the outer wall of the guide roller, and the smoothing scraper moves from the middle part of the film body to two sides when being far away from the air guide ring;

S5: the film body stops pulling after tensioning and sliding a certain distance from between the first guide roller and the second guide roller, the smooth film body is placed on the punching plate, the fusion cutting mechanism fuses the smooth film body, and the film body continues to be pulled for fixed-length fusion cutting after fusion cutting is completed.

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

1. according to the melt cutting guiding device and method for the film bodies with different thicknesses, which are suitable for the plastic packaging bags, after the film bodies enter from the side ends of the machine base through the inlets of the through holes, the film bodies pass through between the first guiding rollers and the second guiding rollers on the movable bottom frame and the fixed top frame, then the film bodies pass through the outlets and are placed on the punching plates, the limiting rollers pass through and are connected with the traction device, the thickness sensor detects the thickness of the film bodies and transmits information to the intelligent controller, the driving motor is started to drive the movable sleeve to move by using the adjusting screw rod, the movable sleeve drives the driving rod to deflect, move and lift the movable bottom frame, the movable bottom frame drives the second guiding rollers to lift the film bodies to extrude the bottom ends of the first guiding rollers in a staggered manner, the film bodies are guided and tensioned, the second guiding rollers drive the film bodies to move and extrude the first guiding rollers in a staggered manner, so that the film bodies with different thicknesses are adaptively guided, and meanwhile, the film bodies are tensioned and kept, and the melt cutting error caused by film body loosening transmission offset is avoided.

2. According to the film fusing and cutting guiding device and method suitable for the plastic packaging bags, when the film is pulled and slid between the first guide roller and the second guide roller, semi-annular air cushions on the outer walls of the adjacent first guide roller and second guide roller are mutually and intermittently rotated and extruded, air is conveyed into the air guide ring through the air guide pipe after being extruded by the semi-annular air cushions, the air is guided into the piston air cylinder by the air guide ring to push the piston rod to move back and forth, when the piston rod drives the smoothing scraper to move back and forth, the eccentric ball in the shell drives the deflection plate to deflect by utilizing inertia to pull the adjusting stay rope, the deflection plate compresses the torsion spring to extend to the outside of the port of the mounting groove on the outer wall of the guide roller, when the smoothing scraper is far away from the air guide ring, air is reversely poured into the semi-annular air cushion from the middle part of the film to the two sides when the piston rod is reset, the deflection plate is restored and stored in the mounting groove, when the semi-annular air cushion is mutually and intermittently rotated and extruded again, the deflection plate is deflected again to move to smooth the film automatically, so that the film wrinkles are prevented from influencing the fusing and cutting precision, and convenience and practicability.

3. According to the film body fusing guiding device and method suitable for the plastic packaging bag, the pneumatic lifting module lowers the height of the mounting housing, so that the bottom of the dividing cutter and the lower end of the anti-adhesion piece at the bottom of the positioning housing are contacted with the extruded film body, then the mounting housing is continuously driven downwards, the mounting housing moves downwards to compress the elastic component and press the dividing cutter, constant-temperature electric heating blocks at two sides of the dividing cutter heat the film body at constant temperature, the dividing cutter vertically fuses the film body under the pressing of the mounting housing, when the mounting housing moves downwards, the communicating hole top plate on the side wall of the dividing cutter extrudes the steel rope downwards, the movable connector moves upwards relative to the positioning housing, the movable connector pulls the steel rope to slide around the bottom of the winding plate, the spring rod is pulled to move obliquely, the tail end of the cleaning blade is pushed out of the mounting housing at the bottom of the positioning housing, the tail end of the cleaning blade is obliquely close to the bottom of the dividing cutter, the fused part of the film body is obliquely chamfered at two sides of the dividing cutter, meanwhile, the beating plate of the anti-adhesion piece is pressed against the film body is deflected, the spring on the rotating drum rotates, then the dividing cutter moves upwards, the anti-adhesion piece is separated from the film body, the film body is released under the pressing of the pressure, the connecting hole is pushed by the film body, the connecting hole is separated, the film body is rotated, the elastic plate is pulled, and the film body is fused, and the film body is prevented from being damaged conveniently.

Drawings

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

FIG. 2 is a schematic view of a guide assembly according to the present invention;

FIG. 3 is a schematic view of a first guide roll structure according to the present invention;

FIG. 4 is a schematic view of a first guide roll end shaft and gear assembly of the present invention;

FIG. 5 is a schematic view of the structure of the smoothing blade of the present invention;

FIG. 6 is a schematic view of the structure of the fusion cutting mechanism of the present invention;

FIG. 7 is a schematic view of the fusion cut piece structure of the present invention;

FIG. 8 is a schematic view of the slitting tool mounting structure of the present invention;

FIG. 9 is a schematic view of the construction of the anti-sticking member of the present invention;

fig. 10 is a schematic view of the drum mounting structure of the present invention.

In the figure: 1. a base; 2. an intelligent controller; 3. a fixing plate; 4. a driving motor; 5. adjusting a screw rod; 6. a through hole; 7. a guide assembly; 71. fixing a top frame; 711. a gear; 712. a chain; 72. a first guide roller; 721. a rotating roller; 722. a semi-annular air cushion; 723. a gas ring; 724. an air duct; 725. a mounting groove; 726. a piston inflator; 727. a piston rod; 728. a smoothing scraper; 7281. a housing; 7282. a mounting port; 7283. a deflector plate; 7284. a torsion spring; 7285. a directional wheel; 7286. adjusting a pull rope; 7287. an eccentric ball; 729. a unidirectional air inlet; 73. a guide rod; 74. moving the bottom frame; 75. a buffer spring; 76. a second guide roller; 77. positioning the cross bar; 78. a driving rod; 79. a moving sleeve; 8. a communication groove; 9. a support plate; 10. a fusion cutting mechanism; 101. punching a plate; 102. a U-shaped seat; 103. a limit roller; 104. a pneumatic lifting module; 105. moving the mounting base; 106. a fusion cutting piece; 1061. fixing a suspender; 1062. installing a shell cover; 1063. an elastic member; 1064. moving the connector; 1065. a slitting tool; 1066. a constant temperature electric heating block; 1067. a positioning cover; 1068. a communication hole; 1069. a mounting sleeve; 10610. cleaning the blade; 10611. a spring rod; 10612. a winding plate; 10613. a steel rope; 10614. an anti-sticking member; 106141, a fixed sleeve; 106142, positioning cylinder; 106143, L-shaped press plates; 106144, a first magnetic block; 106145, a second magnetic block; 106146, connecting rod; 106147, support bar; 106148, a drum; 106149 slapping plate; 1061410, fixing the rope; 1061411, clockwork spring; 107. letting the aqueduct; 11. a U-shaped hanging plate; 12. a thickness sensor.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 and 2, the film melt cutting guiding device with different thicknesses suitable for plastic packaging bags comprises a machine base 1 and an intelligent controller 2 fixedly connected to the side wall of the machine base 1, wherein the bottom of the end head of the machine base 1 on one side of the intelligent controller 2 is fixedly connected with a fixing plate 3, the outer wall of the machine base 1 is fixedly connected with a driving motor 4, the output end of the driving motor 4 is fixedly connected with an adjusting screw 5, and the tail end of the adjusting screw 5 is attached to the bottom of the machine base 1 after penetrating through the fixing plate 3.

In order to solve the problem that when the existing melt cutting guide device faces film bodies with different thicknesses to adjust the adaptive distance, the tensioning force of the film bodies cannot be effectively ensured, and the tensioning force of the film bodies needs to be adjusted again by the guide device, referring to fig. 1-4, the following preferable technical scheme is provided:

The frame 1 corresponds to the drive motor 4 and has offered through hole 6 on the lateral wall, fixedly connected with direction subassembly 7 between the both sides inner wall of through hole 6, the intercommunication groove 8 has been offered on the through hole 6 bottom plate of direction subassembly 7 lower extreme, the bottom of direction subassembly 7 extends to frame 1 lower extreme through intercommunication groove 8, and the guide subassembly 7 end and the accommodate the lead screw 5 activity of frame 1 bottom link to each other, fixedly connected with backup pad 9 on the outer wall of drive motor 4 one end is kept away from to frame 1, backup pad 9 sets up in through hole 6 below, backup pad 9 top fixedly connected with melts cutting mechanism 10, fixedly connected with U type hanger plate 11 on the outer wall of through hole 6 port top department of frame 1 one end of keeping away from melting cutting mechanism 10, the lower extreme both sides of U type hanger plate 11 are fixedly connected with thickness sensor 12 respectively, thickness sensor 12 suspension is in the through hole 6 port outsides.

The guide assembly 7 comprises a fixed top frame 71 fixedly connected between inner walls at two sides of the through hole 6 and a first guide roller 72 movably arranged between inner walls at two ends of the fixed top frame 71, four corners of the bottom of the fixed top frame 71 are fixedly connected with guide rods 73, the lower ends of the guide rods 73 movably penetrate through the four corners of the movable bottom frame 74, buffer springs 75 are wound on the outer walls of the guide rods 73 between the movable bottom frame 74 and the fixed top frame 71, second guide rollers 76 are uniformly and movably arranged between the inner walls at two ends of the movable bottom frame 74, a positioning cross rod 77 is fixedly connected at the middle part of the lower end of the movable bottom frame 74, the positioning cross rod 77 is suspended at the bottom of the movable bottom frame 74, a driving rod 78 is movably connected on the side wall of the positioning cross rod 77, the tail end of the driving rod 78 is movably connected to the top of a movable sleeve 79, the movable sleeve 79 is movably clamped in the through hole 6, and the lower ends of the movable sleeve 79 extend to the bottom of the through hole 6 and then movably sleeve-connected to the outer wall of the adjusting screw 5.

The first guide rollers 72 are arranged parallel to the second guide rollers 76 in a staggered manner, the structural composition of the first guide rollers 72 is the same as that of the second guide rollers 76, a one-way air inlet 729 is arranged on the outer wall of the semi-annular air cushion 722, a notch is arranged at one end of the semi-annular air cushion 722, the length of the notch is one third of the circumference of the rotating roller 721, and the diameter of the air guide ring 723 is the same as that of the rotating roller 721.

The shaft rod at one end of the first guiding roller 72 extends to the outer side of the fixed top frame 71 in a penetrating way, the tail end of the shaft rod is fixedly connected with a gear 711, adjacent gears 711 are sleeved with each other through the same chain 712, the shaft rod at the tail end of the first guiding roller 72 at the middle part of the outer side of the fixed top frame 71 extends to the machine base 1 and is connected with the output end of the rotating motor, the shaft rod at one end of the second guiding roller 76 extends to the outer side of the movable bottom frame 74 in a penetrating way, the tail end of the shaft rod at the tail end of the second guiding roller 76 at the middle part of the outer side of the movable bottom frame 74 is sleeved with the chain 712 through a strip-shaped through hole on the side wall of the machine base 1, and the shaft rod at the tail end of the second guiding roller 76 is connected with the output end of the rotating motor.

Specifically, after the film body enters from the side end of the machine base 1 through the inlet of the through hole 6, the film body passes through between the first guide roller 72 and the second guide roller 76 on the movable bottom frame 74 and the fixed top frame 71, then the film body passes through the outlet and is placed on the punching plate 101, the limiting roller 103 passes through and is connected with the traction device, the thickness sensor 12 detects the thickness of the film body and transmits information to the intelligent controller 2, the driving motor 4 is started to drive the movable sleeve 79 to move by using the adjusting screw 5, the movable sleeve 79 drives the driving rod 78 to deflect, move and lift the movable bottom frame 74, the movable bottom frame 74 drives the second guide roller 76 to lift the film body to cross and extrude the bottom end of the first guide roller 72, the film body is guided and clamped and bent and tensioned, the second guide roller 76 drives the film body to move and cross and extrude the first guide roller 72, so that the film body with different thickness is adaptively guided, meanwhile, the film body is tensioned and kept, and the film body is prevented from being transmitted and offset to cause fusion cutting errors.

In order to strengthen the accuracy of fusion cutting of the film body, avoid the influence of wrinkles on fusion cutting accuracy when the film body is guided, as shown in fig. 3 and 5, the following preferable technical scheme is provided:

the first guide roller 72 comprises a rotary roller 721 and a semi-annular air cushion 722 fixedly sleeved on the outer walls of the end heads on two sides of the rotary roller 721, an air guide ring 723 is embedded and installed on the outer wall of the middle part of the rotary roller 721, the air guide ring 723 is communicated with the semi-annular air cushion 722 through an air guide pipe 724 arranged inside the rotary roller 721, mounting grooves 725 are uniformly spaced on the outer walls of the rotary roller 721 on two sides of the air guide ring 723, piston air cylinders 726 which are communicated are fixedly connected on the outer walls on two sides of the mounting grooves 725 in the mounting grooves 725, piston rods 727 are movably sleeved in the end ports of the piston air cylinders 726, and smooth scraping plates 728 are uniformly and fixedly connected on the outer walls of the piston rods 727 at intervals.

The leveling scraper 728 comprises a shell 7281 fixedly sleeved on the outer wall of the piston rod 727 and a mounting opening 7282 formed in the side wall of the shell 7281, the mounting opening 7282 is arranged on the outer wall of one side of the shell 7281 far away from the gas ring 723 and is close to the top, a deflection plate 7283 is movably arranged between the side walls of the mounting opening 7282, the deflection plate 7283 extends into the shell 7281, the tail end of the deflection plate 7283 in the shell 7281 is connected with the inner wall of the shell 7281 through a torsion spring 7284, the inner wall of the shell 7281 at the lower end of the torsion spring 7284 is fixedly connected with a directional wheel 7285, the bottom of the tail end of the deflection plate 7283 is fixedly connected with an adjusting pull rope 7286, after the adjusting pull rope 7286 passes through the outer wall of the directional wheel 7285, the tail end of the adjusting pull rope 7286 is fixedly connected with an eccentric ball 7287, when the torsion spring 7284 keeps in a normal and relaxed state, the tail end of the deflection plate 7283 outside the shell 7283 is suspended at the port of the mounting groove 725, at the moment, the adjusting pull rope 7286 is in a stretched state, the eccentric ball 7287 is attached to the inner wall of the shell 7285 at the lower end of the directional wheel.

Specifically, when the film body is pulled and slid between the first guide roller 72 and the second guide roller 76, the semi-annular air cushion 722 on the outer wall of the adjacent first guide roller 72 and the outer wall of the second guide roller 76 intermittently rotates and extrudes each other, the semi-annular air cushion 722 conveys air into the air guide ring 723 through the air guide pipe 724 after extruding, the air guide ring 723 guides the air into the piston air cylinder 726 to push the piston rod 727 to reciprocate, when the piston rod 727 drives the smoothing scraper 728 to reciprocate, the eccentric ball 7287 in the shell 7281 pulls the adjusting pull rope 7286 by inertia to drive the deflection plate 7283 to deflect, the deflection plate 7283 compresses the torsion spring 7284 to extend to the outside of the port of the mounting groove 725 on the outer wall of the guide roller, when the smoothing scraper 728 moves away from the air guide ring 723 from the middle part of the film body to two sides, the air is reversely poured into the semi-annular air cushion 722 when the piston rod 727 resets, the deflection plate 7283 resets and is stored in the mounting groove 725, when the semi-annular air cushion 722 intermittently rotates and extrudes each other again, the deflection plate 7283 deflects again to automatically smooth the film body, so that the film body is prevented from being influenced by the cutting precision of the film body, and practicality.

In order to solve the problem that the existing film body fusion cutting guiding device is easy to fuse and adhere to a fusion cutter at a film body breakpoint after fusion cutting is performed on a film body, and the fusion cutter can cause pulling damage to the adhered film body after punching and resetting, please refer to fig. 6-10, the following preferable technical scheme is provided:

The fusing and cutting mechanism 10 comprises a punching plate 101 fixedly connected to the top of the supporting plate 9 and a U-shaped seat 102 fixedly connected to the top of one end of the punching plate 101, a limiting roller 103 is movably arranged between the side walls of the U-shaped seat 102, the limiting roller 103 is suspended above one end, far away from the machine base 1, of the supporting plate 9, a pneumatic lifting module 104 is fixedly connected to the middle of the upper end of the U-shaped seat 102, a movable mounting seat 105 is movably arranged on the outer wall of the pneumatic lifting module 104, a fusing and cutting piece 106 is fixedly connected to the bottom of the movable mounting seat 105, and a channel 107 is formed in the upper end of the punching plate 101 corresponding to the fusing and cutting piece 106.

The fusing and cutting piece 106 includes fixed jib 1061 of fixed connection in removal mount pad 105 bottom and the installation housing 1062 of fixed connection in fixed jib 1061 bottom, installation housing 1062 roof lower extreme fixedly connected with elastomeric element 1063, elastomeric element 1063's lower extreme fixedly connected with removes connector 1064, remove connector 1064 bottom fixedly connected with slitting tool 1065, the lower extreme penetration extension of slitting tool 1065 is to installation housing 1062 lower extreme, and fixedly connected with constant temperature electric heating piece 1066 on the outer wall of slitting tool 1065 both sides of installation housing 1062 bottom port department, fixedly connected with locating cover 1067 on the outer wall of installation housing 1062 both sides, locating cover 1067 is linked together with installation housing 1062 through communication hole 1068.

The locating cover 1067 bottom slope is provided with the installation cover 1069, the clearance blade 10610 has been cup jointed to the activity in the installation cover 1069, the slope of clearance blade 10610 end corresponds cutting tool 1065 setting, and the clearance blade 10610 other end extends to the locating cover 1067 bottom inside, its end fixedly connected with spring beam 10611, the locating cover 1067 roof lower extreme fixedly connected with coiling board 10612 of spring beam 10611 and the adjacent department of clearance blade 10610 link, coiling board 10612 lower extreme is pressed close to the suspension in spring beam 10611 adjacent department, the terminal fixedly connected with cable wire 10613 of spring beam 10611, after the cable wire 10613 was worn around from coiling board 10612 bottom, its end was extended to the installation inside housing 1062 through the intercommunicating pore 1068, and cable wire 10613 is from the end fixedly connected with movable connection head 1064 lateral wall, antiseized gluing piece 10614 is fixedly connected with in installation cover 1069 bottom.

The anti-sticking piece 10614 comprises a fixed sleeve 106141 fixedly connected to the bottom of a mounting sleeve 1069 and a positioning cylinder 106142 fixedly connected to the bottom plate of the fixed sleeve 106141, an L-shaped pressing plate 106143 is movably sleeved in the positioning cylinder 106142, the lower end of the L-shaped pressing plate 106143 is suspended at the bottom of the fixed sleeve 106141, the top of the L-shaped pressing plate 106142 at the upper end of the positioning cylinder 106142 is fixedly connected to a first magnetic block 106142, the lower end of the top of the mounting sleeve 1069 opposite to the top of the first magnetic block 106142 is fixedly connected with a second magnetic block 106142, the second magnetic block 106142 and the first magnetic block 106142 are oppositely arranged in the same-name magnetic pole, a connecting rod 106142 is fixedly connected to the side wall of the L-shaped pressing plate 106142 at the lower end of the first magnetic block 106142, a rotary drum 106142 is movably arranged at the bottom of the mounting sleeve 1069 opposite to the lower end of the connecting rod 106142 through a supporting rod 106142, a beating plate 106142 is fixedly connected to the outer wall of one side of the cleaning blade 10610, a fixing rope 106142 is fixedly connected to the side wall of the rotary drum 106142 adjacent to the upper end of the positioning plate 106142, the fixing rope 106142 extends to the rotary drum 106142 through the inside the supporting rod 106142, and the end of the fixing rope 106142 extends to the inside the supporting rod 106142 and is fixedly connected to the rotary drum 106142 through the inner cavity.

Specifically, the pneumatic lifting module 104 lowers the height of the mounting housing 1062 so that the bottom of the slitting tool 1065 and the lower end of the anti-sticking piece 10614 at the bottom of the positioning housing 1067 contact the extruded film body, then the mounting housing 1062 is continuously driven downwards, the mounting housing 1062 moves downwards to compress the elastic component 1063 and compress the slitting tool 1065, after the constant temperature electric heating blocks 1066 at two sides of the slitting tool 1065 heat the film body at constant temperature, the slitting tool 1065 vertically melts the film body under the compression of the mounting housing 1062, the communication hole 1068 on the side wall of the mounting housing 1062 presses the steel rope 10613 downwards when the mounting housing 1062 moves downwards, the movable connector 1064 moves upwards relative to the positioning housing 1067, the movable connector 1064 pulls the steel rope 10613 to slide around the bottom of the winding plate 10612, the steel rope 10613 obliquely pulls the spring rod 10611 to move, the tail end of the cleaning blade 10610 is pushed out of the mounting sleeve 1069 at the bottom of the positioning cover 1067, the tail end of the cleaning blade 10610 is obliquely close to the bottom of the slitting tool 1065, the film body fusion cutting part is obliquely beveled from two sides of the slitting tool 1065, meanwhile, the slapping plate 106149 of the anti-adhesion piece 10614 is attached to the film body to deflect, the drum 106148 rotates the clockwork spring 1061411 on the winding shaft rod, then the slitting tool 1065 moves upwards, the anti-adhesion piece 10614 is separated from the film body, the clockwork spring 1061411 is released to drive the drum 106148 to reversely rotate, the slapping plate 106149 is pushed to slap the film body fusion cutting end, and pulling damage caused by the film body fusion cutting end is avoided after the film body fusion cutting tool 1065 is adhered, and the film body film fusion cutting device is convenient and practical.

In order to better show the film melt-cutting guide device with different thickness suitable for the plastic packaging bag, the embodiment provides a use method of the film melt-cutting guide device with different thickness suitable for the plastic packaging bag, which comprises the following implementation steps:

step one: after entering the film body from the side end of the machine base 1 through the inlet of the through hole 6, the film body passes through between the first guide roller 72 and the second guide roller 76 on the movable bottom frame 74 and the fixed top frame 71, then the film body passes through the outlet and is placed on the punching plate 101, and the film body passes through the limiting roller 103 and is connected with the traction device;

step two: the thickness sensor 12 detects the thickness of the film body and transmits information to the intelligent controller 2, the driving motor 4 is started to drive the movable sleeve 79 to move by using the adjusting screw 5, the movable sleeve 79 drives the driving rod 78 to deflect and move to lift the movable bottom frame 74, and the movable bottom frame 74 drives the second guide roller 76 to lift the film body to alternately squeeze the bottom end of the first guide roller 72, so that the film body is guided and clamped and bent;

step three: when the film body is pulled and slid between the first guide roller 72 and the second guide roller 76, semi-annular air cushions 722 on the outer walls of the adjacent first guide roller 72 and second guide roller 76 are mutually and intermittently rotated and extruded, the semi-annular air cushions 722 convey gas into a gas guide ring 723 through a gas guide pipe 724 after being extruded, and the gas guide ring 723 guides the gas into a piston air cylinder 726 to push a piston rod 727 to move back and forth;

Step four: when the piston rod 727 drives the smoothing scraper 728 to reciprocate, the eccentric ball 7287 in the shell 7281 pulls the adjusting stay rope 7286 by inertia to drive the deflection plate 7283 to deflect, the deflection plate 7283 compresses the torsion spring 7284 to extend to the outside of the port of the mounting groove 725 on the outer wall of the guide roller, and the smoothing scraper 728 moves from the middle part of the film body to two sides to smooth when being away from the air guide ring 723;

step five: the film body is tensioned and slid for a certain distance between the first guide roller 72 and the second guide roller 76, then the traction is stopped, the smoothed film body is placed on the punching plate 101, the fusion cutting mechanism 10 fuses the smoothed film body, and after the fusion cutting is completed, the film body is continuously traction for fixed-length fusion cutting.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Different thickness film body melts and cuts guider suitable for plastic packaging bag, including frame (1) and intelligent control ware (2) of fixed connection on frame (1) lateral wall, frame (1) end bottom fixedly connected with fixed plate (3) of intelligent control ware (2) one side, fixedly connected with driving motor (4) on the outer wall of frame (1), driving motor (4) output fixedly connected with accommodate the lead screw (5), its terminal laminating suspension in the bottom of frame (1) behind accommodate the lead screw (5) run through fixed plate (3), its characterized in that: a through hole (6) is formed in the side wall of the machine base (1) corresponding to the driving motor (4), a guide component (7) is fixedly connected between the inner walls of the two sides of the through hole (6), a communication groove (8) is formed in the bottom plate of the through hole (6) at the lower end of the guide component (7), the bottom of the guide component (7) extends to the lower end of the machine base (1) through the communication groove (8), the tail end of the guide component (7) at the bottom of the machine base (1) is movably connected with an adjusting screw rod (5), a supporting plate (9) is fixedly connected to the outer wall of one end of the machine base (1) far away from the driving motor (4), the supporting plate (9) is arranged below the through hole (6), the top of the supporting plate (9) is fixedly connected to a fuse cutting mechanism (10), a U-shaped hanging plate (11) is fixedly connected to the outer wall of the top of the port of the through hole (6) at the lower end of one end of the machine base (1), thickness sensors (12) are respectively fixedly connected to the two sides of the lower end of the U-shaped hanging plate (11), and the thickness sensors (12) are suspended outside the port of the through hole (6);

The guide assembly (7) comprises a fixed top frame (71) fixedly connected between inner walls at two sides of the through hole (6) and a first guide roller (72) movably arranged between inner walls at two ends of the fixed top frame (71), guide rods (73) are fixedly connected to four corners of the bottom of the fixed top frame (71), the lower ends of the guide rods (73) movably penetrate through the four corners of the movable bottom frame (74), buffer springs (75) are wound on the outer walls of the guide rods (73) between the movable bottom frame (74) and the fixed top frame (71), second guide rollers (76) are uniformly and movably arranged between inner walls at two ends of the movable bottom frame (74), a positioning cross rod (77) is fixedly connected to the middle part of the lower end of the movable bottom frame (74), the positioning cross rod (77) is suspended at the bottom of the movable bottom frame (74), driving rods (78) are movably connected to the side walls of the movable bottom frame (77), the ends of the driving rods (78) are movably connected to the tops of the movable bottom frame (79), the movable bottom of the movable bottom frame (79) is movably clamped in the through hole (6), and the lower ends of the movable bottom frame (79) extend to the bottom of the through hole (6) and then movably sleeved on the outer wall of the movable screw rod (5).

The structure composition of the first guide roller (72) is the same as that of the second guide roller (76), the first guide roller (72) comprises a rotary roller (721) and a semi-annular air cushion (722) fixedly sleeved on the outer walls of the end heads of the two sides of the rotary roller (721), an air guide ring (723) is embedded and arranged on the outer walls of the middle part of the rotary roller (721), the air guide ring (723) is communicated with the semi-annular air cushion (722) through an air guide pipe (724) arranged inside the rotary roller (721), mounting grooves (725) are uniformly arranged on the outer walls of the rotary roller (721) on the two sides of the air guide ring (723) at intervals, piston air cylinders (726) communicated with each other are fixedly connected on the outer walls of the two sides of the mounting grooves (725), piston rods (727) are movably sleeved in ports of the tail ends of the piston air cylinders (726), and smooth scraping plates (728) are uniformly and fixedly connected on the outer walls of the piston rods (727) at intervals;

The leveling scraper blade (728) comprises a shell (7281) fixedly sleeved on the outer wall of a piston rod (727) and a mounting opening (7282) formed in the side wall of the shell (7281), the mounting opening (7282) is arranged on the outer wall of one side of the shell (7281) far away from the gas guide ring (723) and is close to the top, deflection plates (7283) are movably arranged between the side walls of the mounting opening (7282), the deflection plates (7283) extend to the inside of the shell (7281), the tail ends of the deflection plates (7283) in the shell (7281) are connected with the inner wall of the shell (7281) through torsion springs (7284), an orientation wheel (7285) is fixedly connected to the inner wall of the shell (7281) at the lower end of the torsion springs (7284), an adjusting pull rope (7286) is fixedly connected to the tail end of the adjusting pull rope (7286), after the adjusting pull rope (7286) is wound on the outer wall of the orientation wheel (7285), when the tail ends of the adjusting pull rope are fixedly connected with eccentric balls (7287), and the tail ends of the torsion springs (7284) keep in a normal diastole state, the tail ends of the deflection plates (7283) are arranged at the mounting groove (7281), the tail ends of the deflection plates (7283) outside the shell (7281), and the tail ends of the torsion springs are connected to the adjusting rope (7285), and the adjusting rope.

2. The die-cutting guide device for film bodies with different thicknesses, which is applicable to plastic packaging bags, according to claim 1, is characterized in that: the first guide rollers (72) are arranged in parallel with the second guide rollers (76) in a staggered mode, a one-way air inlet hole (729) is formed in the outer wall of the semi-annular air cushion (722), a notch is formed in one end of the semi-annular air cushion (722), the length of the notch is one third of the circumference of the rotary roller (721), and the diameter of the air guide ring (723) is identical to that of the rotary roller (721).

3. The die-cutting guide device for film bodies with different thicknesses, which is applicable to plastic packaging bags, according to claim 2, is characterized in that: the axostylus axostyle of first guide roll (72) one end runs through and extends to the outside of fixed top frame (71), its end fixedly connected with gear (711), cup joint through same chain (712) between adjacent gear (711), first guide roll (72) terminal axostylus axostyle in fixed top frame (71) outside middle part department extends to frame (1), it is connected with the rotating electrical machines output, and the axostylus axostyle of second guide roll (76) one end runs through and extends to the outside of removing underframe (74), its end cup joints through gear (711) and chain (712), the terminal axostylus axostyle of second guide roll (76) in the middle part outside of removing underframe (74) extends to its outside through the bar through-hole on frame (1) lateral wall, terminal axostylus axostyle of second guide roll (76) is connected with the rotating electrical machines output.

4. The die-cutting guide device for film bodies with different thicknesses, which is applicable to plastic packaging bags, according to claim 1, is characterized in that: the utility model provides a fuse cutting mechanism (10) including fixed connection in die-cut board (101) at backup pad (9) top and fixed connection in U type seat (102) at die-cut board (101) one end top, the activity is provided with spacing roller (103) between U type seat (102) lateral wall, spacing roller (103) suspension is in backup pad (9) keep away from the top of frame (1) one end, the pneumatic lift module (104) of department fixedly connected with in U type seat (102) upper end middle part, the activity is provided with on the outer wall of pneumatic lift module (104) and removes mount pad (105), the bottom fixedly connected with of removal mount pad (105) fuses cut piece (106), die-cut board (101) upper end corresponds to fuse cut piece (106) department and is provided with and lets aqueduct (107).

5. The die-cutting guide device for plastic packaging bags of different thickness according to claim 4, wherein: the utility model provides a melt cutting piece (106) including fixed jib (1061) of fixed connection in removal mount pad (105) bottom and fixed connection in installation shell (1062) of fixed jib (1061) bottom, installation shell (1062) roof lower extreme fixedly connected with elastomeric element (1063), the lower extreme fixedly connected with removal connector (1064) of elastomeric element (1063), remove connector (1064) bottom fixedly connected with and cut cutter (1065), the lower extreme of cutting cutter (1065) runs through and extends to installation shell (1062) lower extreme, and fixedly connected with constant temperature electric heating piece (1066) on the outer wall of cutting cutter (1065) both sides of installation shell (1062) bottom port department, fixedly connected with positioning cover (1067) on the outer wall of installation shell (1062) both sides, positioning cover (1067) are linked together through intercommunicating pore (1068) and installation shell (1062).

6. The die-cutting guide device for plastic packaging bags of different thickness according to claim 5, wherein: the utility model provides a locating cover (1067) bottom slope is provided with installation cover (1069), clearance blade (10610) has been cup jointed to installation cover (1069) internal activity, clearance blade (10610) end slope corresponds slitting tool (1065) setting, and clearance blade (10610) other end extends to inside the locating cover (1067) bottom, its end fixedly connected with spring beam (10611), spring beam (10611) and locating cover (1067) roof lower extreme fixedly connected with coiling board (10612) of clearance blade (10610) link adjacent department, coiling board (10612) lower extreme is pressed close to and is suspended in spring beam (10611) adjacent department, spring beam (10611) end fixedly connected with cable rope (10613), cable rope (10613) wears around from coiling board (10612) bottom back, its end extends to inside installation housing (1062) through communication hole (1068), and cable rope (10613) follow end and remove connector (1064) lateral wall fixedly connected with anti-sticking piece (14) bottom installation cover (1069).

7. The die-cutting guide device for plastic packaging bags of different thickness according to claim 6, wherein: the anti-sticking piece (10614) comprises a fixed sleeve (106141) fixedly connected to the bottom of a mounting sleeve (1069) and a positioning cylinder (106142) fixedly connected to the bottom plate of the fixed sleeve (106141), an L-shaped pressing plate (106143) is movably sleeved in the positioning cylinder (106142), the lower end of the L-shaped pressing plate (106143) is suspended at the bottom of the fixed sleeve (106141), the top of the L-shaped pressing plate (106143) at the upper end of the positioning cylinder (106142) is fixedly connected to a first magnetic block (106144), the lower end of the top of the first magnetic block (106144) is fixedly connected with a second magnetic block (106144) fixedly connected to the top plate lower end of the top plate of the fixed sleeve (1069) opposite to the top of the first magnetic block (106144), the second magnetic block (106144) is oppositely arranged with the same-name magnetic pole of the first magnetic block (106144), a connecting rod (106144) is fixedly connected to the side wall of the L-shaped pressing plate (106144) at the lower end of the first magnetic block (106144), the bottom of the mounting sleeve (1069) opposite to the lower end of the connecting rod (106144) is movably provided with a rotary drum (106144), the rotary drum (106144) is close to the upper end of the rotary drum (106144) and is fixedly connected to the rotary drum (106144) and fixedly connected to the inner end of the rotary drum (106144) through the connecting rod (106144) after the rotary drum (106144) and the rotary drum (106144) is fixedly connected to the end of the rotary drum (106144) and fixed to the end, the outer wall of the shaft lever of the rotary drum (106148) in the cavity is wound with a clockwork spring (1061411).

8. The method of using the film melt cutting guide device with different thickness for plastic packaging bags according to claim 7, comprising the following steps:

s1: after entering the film body from the inlet of a through hole (6) at the side end of the machine seat (1), the film body passes through a space between a first guide roller (72) and a second guide roller (76) on a movable bottom frame (74) and a fixed top frame (71), then the film body is put on a punching plate (101) after passing out from the outlet, and a traction device is connected after passing around a limit roller (103);

s2: the thickness sensor (12) detects the thickness of the film body and transmits information to the intelligent controller (2), the driving motor (4) is started to drive the movable sleeve (79) to move by using the adjusting screw rod (5), the movable sleeve (79) drives the driving rod (78) to deflect, move and lift the movable bottom frame (74), and the movable bottom frame (74) drives the second guide roller (76) to lift the film body to extrude the bottom end of the first guide roller (72) in a staggered manner, so that the film body is guided, clamped and bent and tensioned;

s3: when the film body is pulled and slid between the first guide roller (72) and the second guide roller (76), semi-annular air cushions (722) on the outer walls of the adjacent first guide roller (72) and second guide roller (76) are mutually and intermittently rotated and extruded, the semi-annular air cushions (722) convey gas into a gas guide ring (723) through a gas guide pipe (724) after extrusion, and the gas guide ring (723) guides the gas into a piston air cylinder (726) to push a piston rod (727) to move back and forth;

S4: when the piston rod (727) drives the smoothing scraper (728) to reciprocate, an eccentric ball (7287) in the shell (7281) pulls an adjusting stay rope (7286) by inertia to drive a deflection plate (7283) to deflect, the deflection plate (7283) compresses a torsion spring (7284) to extend to the outside of a port of a mounting groove (725) on the outer wall of the guide roller, and the smoothing scraper (728) moves from the middle part of the film body to two sides to smooth when being far away from the air guide ring (723);

s5: the film body is tensioned and slid between the first guide roller (72) and the second guide roller (76) for a certain distance, then the traction is stopped, the smooth film body is placed on the punching plate (101), the fusion cutting mechanism (10) fuses the smooth film body, and after the fusion cutting is completed, the film body is continuously traction for fixed-length fusion cutting.