Automatic forming and packaging integrated device for extrudable paper suction tube
Technical Field
The invention relates to an integrated device for automatically forming and packaging extrudable paper straws, in particular to a device capable of producing and packaging square straws.
Background
The suction pipe is widely used in daily life, most suction pipes in the market are round plastic suction pipes, the plastic suction pipes are not easy to degrade and cause environmental pollution, and the suction pipes are not easy to compress and occupy space; aiming at the problem that the traditional straw cannot be compressed, the processing mode of the traditional straw needs to be upgraded, and in order to solve the problem, the invention provides the automatic forming device for the compressible paper straw.
Disclosure of Invention
In order to achieve the purpose, the invention discloses an automatic production device for an extrudable paper straw, which can be produced, occupies small space and is convenient to store and transport, and has the advantages of high integration degree, simple manufacturing process and convenient operation.
The invention adopts the following technical scheme:
the invention relates to an automatic forming and packaging integrated device for an extrudable paper straw, which comprises a feeding device, an inner and outer layer paper pressing device, a gluing device, an inner and outer layer paper forming device, a pressing device, a shearing device, a film packaging device, a heat sealing device and a quantifying device, wherein the feeding device is used for feeding paper to the inner layer paper pressing device; the feeding device is fixedly arranged on the ground through foundation bolts, the inner and outer paper laminating devices are arranged behind the feeding device, the gluing device is arranged above the inner and outer paper laminating devices through bolts, and the inner and outer paper laminating devices are arranged behind the inner and outer paper laminating devices; the film packaging device is characterized in that the pressing device is fixedly arranged behind the inner-layer paper forming device and the outer-layer paper forming device through bolts, the shearing device is fixedly arranged on the inner-layer paper forming device and the outer-layer paper forming device through bolts and located behind the pressing device, the film packaging device is arranged behind the inner-layer paper forming device and the outer-layer paper forming device, the heat sealing device is arranged above the film packaging device through bolts, and the quantifying device is arranged behind the film packaging device and connected with the heat sealing device.
Further, the loading attachment includes: the paper winding machine comprises a feeding rack, a cylindrical barrel core, a paper winding barrel and an axial fixing sleeve; the feeding frame is of an H-shaped structure formed by welding and assembling high-strength square pipes, and rectangular square pipes are welded at the bottom of the feeding frame to enhance the stability; the cylindrical barrel core is vertically installed on the feeding rack, the paper winding barrel is installed on the cylindrical barrel core through a bearing, the cylindrical barrel core is wound to rotate freely, the axial fixing sleeve is fixed on one side of the paper winding barrel, and the cylindrical barrel core is fixedly installed on the cylindrical barrel core and is used for adjusting and fixing the axial position of the paper winding barrel.
Further, the inner and outer laminated paper device includes: the guide roller fixing plate, the guide roller I, the paper pressing fixing plate, the paper pressing roller, the motor I, the rack and the bracket I; the inner and outer paper laminating devices are divided into an inner layer and an outer layer, have the same structure and are respectively arranged on the rack and the bracket I; the guide roller fixing plate is mounted on the bracket I through a bolt; deflector roll I has two, through the bearing about fixed mounting on the deflector roll fixed plate, the paper passes through small clearance between the deflector roll I levels the paper, press paper fixed plate parallel mount in the rear of deflector roll fixed plate, press the paper gyro wheel to have two, through the bearing about fixed mounting on the paper fixed plate, it has arch and recess to open on the paper gyro wheel, motor I drives press the paper gyro wheel to rotate, the paper passes through press the clearance between the paper gyro wheel, press the crease with paper.
Further, the gluing device comprises: the glue filling machine comprises a support frame I, a glue containing box, a motor II, a gear I, a gear II, a gear III, a glue rolling barrel, an upper glue rolling wheel, a lower glue rolling wheel and a scraper; the support frame I is fixedly arranged on a forming workbench of the inner-layer paper forming device and the outer-layer paper forming device through bolts; the glue containing box is a box body formed by welding stainless plates and is fixedly arranged on the support frame I; the viscose glue rolling barrel is arranged in the glue containing box through a bearing; the lower adhesive roller is arranged in the adhesive containing box through a bearing, the cylindrical surface of the lower adhesive roller is tangent to the cylindrical surface of the adhesive roller, and the adhesive roller is driven by the motor II to rotate so as to adhere the adhesive to the surface of the lower adhesive roller; the scraper is tangentially arranged with the cylindrical surface of the viscose rolling barrel, and the gluing amount is controlled; the upper adhesive roller is tangentially arranged above the lower adhesive roller, and the paper tape passes through the gap between the upper adhesive roller and the lower adhesive roller, so that one side of the paper tape is adhered with the adhesive; gear I gear II gear III fixed mounting be in the gear pair is constituteed to the side of flourishing gluey case, motor II passes through bolt fixed mounting and is in on the support frame I, drive the gear shaft through the shaft coupling and rotate to drive I rotation of gear drives through the meshing gear II gear III is rotatory, further drives go up the viscose gyro wheel with lower viscose gyro wheel rotates relatively, realizes that the tape surface glue ration is evenly paintd.
Further, the inner and outer layer paper forming apparatus includes: the inner layer two-side former, the top former, the sliding joint belt, the spring support, the guide roller II, the two-side former, the bottom former, the side former, the iron core and the forming workbench; the inner layer two-side forming devices are of concave structures with two symmetrical sides and are fixedly installed on the forming workbench through bolts, and the inner side surfaces of the inner layer two-side forming devices are installed in a tangent mode with the outer side surface of the iron core to form the side edges of the folded paper tape; the top former is of an L-shaped structure and is installed on the forming workbench through a bolt, the inner side surface of the top former is attached to the iron core and is fixedly installed on the forming workbench through a bolt and positioned behind the formers at the two side edges of the inner layer, and the top of the folded paper tape is formed; the sliding fit belt consists of a belt and a roller, is arranged on the forming workbench, and is fitted with the lower bottom surface of the iron core to tightly press the formed paper belt by utilizing the elastic force of the spring support to the belt; the guide roller II is supported by two support frames and is arranged at the rear end of the sliding bonding belt, and the outer paper belt penetrates through the lower end of the guide roller II; the two-side former is of a concave structure, the inner side face of the two-side former is installed in a tangent mode with the outer side face of the iron core, and the two-side former is fixed on the forming workbench through bolts and located at the rear end of the guide roller II to fold the two side edges of the outer-layer paper; the bottom former is of an L-shaped structure, the inner side face of the bottom former is tangentially installed with the outer side face of the iron core, and the bottom former is fixed on the forming workbench through bolts and located at the rear ends of the two side edge formers to fold the bottom face of the outer-layer paper; the side former is fixed on the forming workbench through a bolt and located at the rear end of the bottom former, the side former is of an L-shaped structure, the inner side face of the side former is installed in a tangent mode with the outer side face of the iron core, and one side face of the outer paper is pressed.
Further, the laminating device includes: the device comprises a gear IV, a gear V, a large belt pulley, a small belt pulley, a belt, a motor III, a gear carrier and a belt pulley support; the pressing device is divided into two parts, one part is used for pressing the upper surface and the lower surface of the paper suction pipe and is vertically arranged on the forming workbench of the inner-layer paper forming device and the outer-layer paper forming device through bolts, the other part is used for pressing the left surface and the right surface of the paper suction pipe and is horizontally arranged on the forming workbench through bolts, and the two parts have the same structure; gear IV with gear V constitutes the gear pair, and the meshing is installed on the carrier, big belt pulley has two, coaxial arrangement in gear IV with gear V is last, the belt lace wheel has four, installs on the band pulley support, motor III rotates, drives gear pair and rotates, further drives big belt pulley with the belt lace wheel rotates, through the laminating of belt extrusion realizes the laminating conveying of inlayer paper tape.
Further, the cutting apparatus includes: the device comprises a fixed frame, a motor IV, an eccentric wheel, a guide rod, a slide rod, a knife rest, a speed reducer and a folding device; the folding device includes: the device comprises a synchronous belt wheel A, a synchronous belt wheel B, a synchronous belt I, a gear A, a gear B, a parallel guide roller, a synchronous belt II, a universal coupling and an inclined guide roller; the fixing frame is fixedly arranged at the tail part of the inner and outer layer paper forming device through bolts, and bearings are arranged at two sides of the fixing frame to fix the eccentric wheel; the speed reducer is fixedly arranged on one side of the fixing frame through a bolt; the motor IV is fixedly arranged on the speed reducer through a bolt, and is connected with the speed reducer through a key slot to realize transmission; the eccentric wheel and the guide rod form a crank-slider mechanism; the tool rest is hinged with the guide rod; cylindrical holes are formed in two ends of the tool rest and form a sliding pair with the sliding rod; the motor IV rotates to drive the eccentric wheel to rotate, and the guide rod drives the cutter frame to reciprocate up and down on the slide rod to cut the paper straw; the synchronous belt pulley A and the synchronous belt I form belt transmission; the eccentric wheel drives the synchronous belt pulley A to rotate, so that the parallel guide roller is driven to rotate, and the paper tape is conveyed in the parallel direction; the gear A is arranged on one side of the fixing frame, the gear A rotates and simultaneously drives the synchronous belt pulley B, and the universal coupling is driven to rotate through the synchronous belt II and the gear B; the universal coupling is connected with the oblique guide roller to extrude the paper tape in an oblique mode.
Further, the film wrapping apparatus includes: the device comprises a film winding drum, a film former I, a film former II, a supporting frame, a stepping motor, a roller, a packaging workbench, a bracket and a shearing device; the shearing device comprises: a motor V, a gear C, a gear D and a shearing knife; the film winding drum is fixedly arranged below the packaging workbench through bolts; the two sides of the film former I are rectangular thin plates, the top of each thin plate is provided with an outward extending fan-shaped concave surface structure, the fan-shaped concave surface structures at the top play a role in folding the packaging film, damage to the packaging film during folding is reduced, the film is prevented from being broken, and the film former I is fixedly arranged above the packaging workbench through bolts; the film former II is arranged behind the film former I, the film former II is of a square structure, a gap is formed in the side face of the film former II, and a film is attached and heat-sealed through the gap; the bracket is of an arc-shaped groove structure and is used for bearing and conveying the suction pipe and the film; the supporting frame is of a U-shaped structure and is fixedly installed on the packaging workbench through bolts, the stepping motor is installed above the supporting frame, the roller is installed below the supporting frame, and the stepping motor drives the roller to rotate through the coupler so as to drive the packaging film to be conveyed forwards; the gear C and the gear D form a gear pair, the shearing knife is of a diamond structure, and two side edges are knife edges; the motor V rotates to drive the gear pair to rotate, so that the shearing knives are driven to rotate in the same direction, and the packaging film is sheared.
Further, the heat seal device includes: the device comprises a motor VI, a rotating disc, a pull rod, a push plate, a sliding rod, a spring I, a heat sealer, a gear VI, a gear VII, a spring II and a shaft; the motor VI is fixedly arranged in front of the heat sealing device through a bolt; the rotating disc is hinged with the pull rod to form a crank-rocker mechanism; the push plate and the sliding rod form a moving pair; the heat sealer is fixedly arranged on the push plate through a bolt and is electrified and heated; the gear VI and the gear VII are incomplete gears to form a rotation pair; the motor VI drives the gear pair and the rotating disc to rotate through the shaft, and the pull rod drives the push plate to be continuously and periodically closed to heat seal the plastic film; after heat sealing is finished, the push plate is pushed away by the aid of elastic force of the spring I, and the gear VII returns to an initial position; and the spring II is arranged on the sliding rod and plays a role in elastic clamping in the heat sealing process.
Further, the dosing device comprises: the motor VII, the transmission device, the upper partition plate, the lower partition plate and the material box; the transmission device includes: the gear rack comprises a rack, a gear E, a gear F, a gear G, a gear H and a gear I; the motor VII is fixedly arranged on the material box through a bolt, and the motor VII rotates to drive the gear E to rotate, so that the rack is driven to move up and down in the sliding groove; the rack moves upwards, the gear F rotates clockwise, the gear G rotates anticlockwise, the gear H rotates anticlockwise, the gear I rotates clockwise, the upper partition plate is opened, the lower partition plate is closed, the rack moves downwards, the upper partition plate is closed, and the lower partition plate is opened; the quantitative output of the paper suction pipe is realized by controlling the opening and closing of the upper partition plate and the lower partition plate.
Further, the invention also relates to a test method of the automatic forming and packaging integrated device of the extrudable paper straw, which comprises the following specific steps: the paper tape penetrates through the guide roller and the paper pressing roller to press paper into creases, the outer paper tape passes through the upper adhesive roller and the lower adhesive roller to coat glue on the paper tape, the inner paper tape passes through the inner layer two-side former and the top former to form the paper tape into a square shape, the outer paper tape wraps the inner paper tape through the two-side former, the bottom former and the one-side former, and the inner paper tape and the outer paper tape pass through the pressing device and are pressed and conveyed by the belt; the paper tape is flattened through the parallel guide roller and the inclined guide roller; the motor IV drives the eccentric wheel to rotate to drive the guide rod to move up and down, and the knife rest is hinged with the guide rod to drive the knife rest to move up and down to cut off the straw; the suction pipes are placed on the film former I and the film former II, and the stepping motor drives the roller to convey the packaging film; the heat sealing device is used for heat sealing of the plastic film, the motor V drives the incomplete gear, the gear VI, the gear VII and the rotating disc to rotate, and the pull rod drives the push plate to close so as to heat seal the plastic film; after heat sealing is finished, the push plate is pushed away by the aid of elastic force of the spring I, and the gear II returns to an initial position; the spring II is arranged on the sliding rod and plays a role in elastic clamping in the heat sealing process; and after heat sealing is finished, the motor V drives the gear C and the gear D to rotate, and drives the shearing knife to rotate in the same direction to cut the packaging film.
The automatic forming and packaging integrated device for the extrudable paper straw has the beneficial effects that:
(1) according to the automatic forming and packaging integrated device for the extrudable paper straw, the pressing device utilizes the motor to drive the gear and the belt wheel to continuously press the upper surface, the lower surface, the left surface and the right surface of the square straw by utilizing the four belts, so that the inner layer and the outer layer of the paper straw are firmly bonded; the heat sealing device utilizes the incomplete gear to continuously close the heat sealer and utilizes the spring to rebound, thereby realizing the continuous and high-efficiency packaging process; the automatic degree is high, has realized processing, packing an organic whole, uses manpower sparingly, improves work efficiency.
(2) According to the automatic forming and packaging integrated device for the extrudable paper straw, the paper straw after being processed and formed is sheet-shaped, the storage space is saved, one end of the paper straw is cut into the pointed end through the shearing device, the paper straw is only required to be extruded along the sheet direction when the device is used, the paper straw is unfolded, and the device is simple to operate and convenient to use.
Drawings
FIG. 1 is a front view of an automatic forming and packaging integrated device for a squeezable paper straw according to the present invention;
FIG. 2 is a front view of a feeding device of an automatic forming and packaging integrated device for squeezable paper straws in accordance with the present invention;
FIG. 3 is a front view of the inner and outer layer paper pressing device of the automatic forming and packaging integrated device for the extrudable paper straw of the present invention;
FIG. 4 is a front view of a glue applying device of an automatic forming and packaging integrated device for a squeezable paper straw according to the present invention;
FIG. 5 is a front view of an inner and outer layer paper forming device of an automatic forming and packaging integrated device for a squeezable paper straw according to the present invention;
FIG. 6 is a front view of a pressing device of an integrated device for automatically forming and packaging a squeezable paper straw according to the present invention;
FIG. 7 is a rear view of a pressing device of an automatic forming and packaging integrated device for squeezable paper straws in accordance with the present invention;
FIG. 8 is a front view of a cutting device of the automatic forming and packaging integrated device for squeezable paper straws of the present invention;
FIG. 9 is a rear view of a cutting device of the automatic forming and packaging integrated device for squeezable paper straws in accordance with the present invention;
FIG. 10 is a front view of a film wrapping apparatus of an integrated automatic forming and wrapping apparatus for a squeezable paper straw in accordance with the present invention;
FIG. 11 is a front view of a cutting device of an automatic forming and packaging integrated device for squeezable paper straws in accordance with the present invention;
FIG. 12 is a front view of the heat sealing device of the automatic forming and packaging integrated device for squeezable paper straws of the present invention;
FIG. 13 is a bottom view of the heat sealing device of the automatic package forming integrated apparatus for squeezable paper straws of the present invention;
FIG. 14 is a front view of a dosing device of an integrated automatic forming and packaging device for squeezable paper straws in accordance with the present invention;
in the figure: 1-feeding device, 2-inner and outer laminated paper device, 3-gluing device, 4-inner and outer laminated paper forming device, 5-pressing device, 6-shearing device, 7-film packaging device, 8-heat sealing device, 9-quantifying device, 11-feeding machine frame, 12-cylindrical barrel core, 13-paper winding barrel, 14-axial fixing sleeve, 21-guide roller fixing plate, 22-guide roller I, 23-paper pressing fixing plate, 24-paper pressing roller, 25-motor I, 26-frame, 27-bracket I, 31-support frame I, 32-glue containing box, 33-motor II, 34-gear I, 35-gear II, 36-gear III, 37-glue rolling barrel, 38-upper glue rolling roller, 39-lower glue rolling roller, 310-a scraper, 41-an inner layer two-side edge former, 42-a top former, 43-a sliding joint belt, 44-a spring support, 45-a guide roller II, 46-a two-side edge former, 47-a bottom former, 48-a side former, 49-an iron core, 410-a forming workbench, 51-a gear IV, 52-a gear V, 53-a large belt pulley, 54-a small belt pulley, 55-a belt, 56-a motor III, 57-a gear rack, 58-a belt pulley support, 61-a fixed frame, 62-a motor IV, 63-an eccentric wheel, 64-a guide rod, 65-a slide rod, 66-a tool rest, 67-a speed reducer, 681-a synchronous belt pulley A, 6811-a synchronous belt pulley B, 682-a synchronous belt I, 683-a gear A, 6831-gear B, 684-parallel guide roller, 685-synchronous belt II, 686-universal joint, 687-inclined guide roller, 71-film reel, 72-film former I, 73-film former II, 74-supporting frame, 75-stepping motor, 76-roller, 77-packaging workbench, 78-bracket, 791-motor V, 792-gear C, 793-gear D, 794-shearing knife, 81-motor VI, 82-rotating disc, 83-pull rod, 84-push plate, 85-sliding rod, 86-spring I, 87-heat sealer, 88-gear VI, 881-gear VII, 861-spring II, 89-shaft, 91-motor VII, 921-rack, 922-gear E, 923-gear F, 924-gear G, 925-gear H, 926-gear I, 93-upper partition, 94-lower partition, 95-bin.
Detailed Description
Specific implementations of the present invention are further described below in conjunction with the following figures.
Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, a squeezable integrated package with automatic shaping of a straw, comprising: the paper packaging machine comprises a feeding device 1, an inner and outer layer paper pressing device 2, a gluing device 3, an inner and outer layer paper forming device 4, a pressing device 5, a shearing device 6, a film packaging device 7, a heat sealing device 8 and a quantifying device 9; the feeding device 1 is fixedly arranged on the ground through foundation bolts, the inner and outer paper laminating devices 2 are arranged behind the feeding device 1, the gluing device 3 is arranged above the inner and outer paper forming devices 4 through bolts, and the inner and outer paper forming devices 4 are arranged behind the inner and outer paper laminating devices 2; the pressing device 5 is fixedly arranged behind the inner and outer layer paper forming devices 5 through bolts, the shearing device 6 is fixedly arranged on the inner and outer layer paper forming devices 4 through bolts and is positioned behind the pressing device 5, the film packaging device 7 is arranged behind the inner and outer layer paper forming devices 4, the heat sealing device 8 is arranged above the film packaging device 7 through bolts, and the quantifying device 9 is arranged behind the film packaging device 7 and is connected with the heat sealing device 8; the feeding device 1 includes: the device comprises a feeding rack 11, a cylindrical barrel core 12, a paper rolling barrel 13 and an axial fixing sleeve 14; the inner and outer layer paper pressing device 2 includes: the device comprises a guide roller fixing plate 21, a guide roller I22, a paper pressing fixing plate 23, a paper pressing roller 24, a motor I25, a rack 26 and a bracket I27; the inner and outer laminated paper devices are divided into an inner layer and an outer layer, have the same structure and are respectively arranged on the rack 26 and the bracket I27; the gluing device 3 comprises: the glue filling machine comprises a support frame I31, a glue containing box 32, a motor II 33, a gear I34, a gear II 35, a gear III 36, a glue rolling barrel 37, an upper glue roller 38, a lower glue roller 39 and a scraper 310; the support frame I31 is fixedly arranged on the forming workbench 410 through bolts; the inner and outer layer paper forming apparatus 4 includes: an inner layer two-side former 41, a top former 42, a sliding joint belt 43, a spring bracket 44, a guide roller II 45, two-side formers 46, a bottom former 47, a side former 48, an iron core 49 and a forming workbench 410; the press-fitting device 5 includes: a gear IV 51, a gear V52, a large belt pulley 53, a small belt pulley 54, a belt 55, a motor III 56, a gear carrier 57 and a belt wheel bracket 58; the cutting device 6 includes: the device comprises a fixed frame 61, a motor IV 62, an eccentric wheel 63, a guide rod 64, a slide rod 65, a knife rest 66, a speed reducer 67 and a folding device 68; the folding device 68 includes: a synchronous belt wheel A681, a synchronous belt wheel B6811, a synchronous belt I682, a gear A683, a gear B6831, a parallel guide roller 684, a synchronous belt II 685, a universal coupling 686 and a slant guide roller 687; the film wrapping device 7 includes: a film reel 71, a film former I72, a film former II 73, a supporting frame 74, a stepping motor 75, a roller 76, a packaging workbench 77, a bracket 78 and a shearing device 79; the shearing device 79 includes: a motor V791, a gear C792, a gear D793 and a shearing knife 794; the heat seal device 8 includes: the device comprises a motor VI 81, a rotating disc 82, a pull rod 83, a push plate 84, a sliding rod 85, a spring I86, a heat sealer 87, a gear VI 88, a gear VII 881, a spring II 861 and a shaft 89; the dosing means 9 comprise: the device comprises a motor VII 91, a transmission device 92, an upper partition plate 93, a lower partition plate 94 and a material box 95; the transmission 92 includes: a rack 921, a gear E922, a gear F923, a gear G924, a gear H925, a gear I926; the motor VII 91 is fixedly arranged on the material box 95 through a bolt, and the motor VII 91 rotates to drive the gear E922 to rotate, so that the rack 921 is driven to move up and down in the sliding groove; the rack 921 moves upward, the gear F923 rotates clockwise, the gear G924 rotates counterclockwise, the gear H925 rotates counterclockwise, the gear I926 rotates clockwise, the upper partition plate 93 opens, the lower partition plate 94 closes, the rack 921 moves downward, the upper partition plate 93 closes, and the lower partition plate 94 opens; the opening and closing of the upper partition 93 and the lower partition 94 are controlled to realize the quantitative output of the paper suction pipe.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14, the testing method of the automatic forming and packaging integrated device for the squeezable paper straw of the present invention comprises the following specific steps: the paper tape passes through the guide roller 22 and the paper pressing roller 24 to press the paper into creases, the outer paper tape passes through the upper adhesive roller 38 and the lower adhesive roller 39 to coat the paper tape with glue, the inner paper tape passes through the inner two-side former 41 and the top former 42 to form the paper tape into a square shape, the outer paper tape passes through the two-side former 46, the bottom former 47 and the side former 48 to wrap the inner paper tape, and the inner paper tape and the outer paper tape pass through the pressing device 5 and are pressed and conveyed by the belt 55; the paper tape is flattened through the parallel guide roller 684 and the inclined guide roller 687; the motor IV 62 drives the eccentric wheel 63 to rotate, so as to drive the guide rod 64 to move up and down, the knife rest 66 is hinged with the guide rod 64, the knife rest 66 is driven to move up and down, and the straw is cut off; the suction pipes are placed on the film former I72 and the film former II 73, and the stepping motor 75 drives the roller 76 to convey the packaging film; the heat sealing device 8 is used for carrying out heat sealing on the plastic film, the motor V81 drives the incomplete gear, the gear VI 88, the gear VII 881 and the rotating disc 82 to rotate, and the pull rod 83 drives the push plate 84 to be closed so as to carry out heat sealing on the plastic film; after the heat sealing is finished, the push plate 84 is pushed away by the elastic force of the spring I86, and the gear II 881 returns to the initial position; the spring II 861 is arranged on the sliding rod 85 and plays a role in elastic clamping in the heat sealing process; and after the heat sealing is finished, the motor V791 drives the gear C792 and the gear D793 to rotate, so that the shearing knife 794 is driven to rotate in the same direction, and the packaging film is cut.
The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.