CN111689002A - Quick continuous type packaging machine and packaging method - Google Patents

Abstract

The invention discloses a rapid continuous type packing machine and a packing method, comprising a film hanging device; the film feeding device is driven by a first stepping motor; a forming and blanking device; the longitudinal sealing and heat sealing device is driven by a first servo motor and is used for heat sealing the side opening of the double-layer film roll to form a cylindrical film; the transverse sealing and heat sealing device is driven by a second servo motor and is used for performing interval transverse heat sealing on the cylindrical film to form a packaging bag; the transverse sealing reticulate pattern stamping device is driven by a third servo motor and is used for stamping lines on the transverse heat sealing surface of the packaging bag; the easy-tearing opening cutting device is driven by a second stepping motor and is used for cutting an easy-tearing opening on the longitudinal sealing and heat sealing edge of the packaging bag; the subpackage cutting device is driven by a fourth servo motor and is used for cutting off the middle of the transverse heat-sealing surface of the packaging bag for subpackage; and the control device is used for controlling the rotating speeds of all the motors. The packaging machine and the packaging method can realize quick and continuous packaging.

Description

Quick continuous type packaging machine and packaging method

Technical Field

The invention belongs to the technical field of packaging equipment and methods, and particularly relates to a quick continuous packaging machine and a packaging method.

Background

The existing packaging machine has the following defects: (1) when a user needs to change different bag lengths of the packing materials, the machine must be stopped firstly, then each part of the machine is manually adjusted by a tool, continuous production cannot be realized, the pulled bags are manually adjusted and corrected, and the bag length adjustment amplitude is small; (2) the longitudinal sealing heat-sealing device is stressed greatly when a film is pulled, so that the longitudinal sealing seal is easy to wrinkle and is not attractive, and the product sale is further influenced; (3) the packaging speed is also relatively slow.

Disclosure of Invention

In view of the disadvantages of the prior art, the present invention provides a fast continuous packaging machine and a packaging method.

In order to solve the technical problems, the invention adopts the following technical scheme: a fast continuous packaging machine comprising:

the film hanging device is used for placing a rolled film;

the film feeding device is driven by a first stepping motor and is used for penetrating and conveying the single-layer film pulled out from the rolled film;

the forming and blanking device is used for penetrating the single-layer film, oppositely folding the single-layer film into a double-layer film and blanking quantitatively at fixed time after longitudinal sealing and transverse sealing of the double-layer film;

the longitudinal sealing and heat sealing device is driven by a first servo motor and is used for carrying out continuous longitudinal heat sealing on the side opening of the double-layer rolled film to form a cylindrical film;

the transverse sealing and heat sealing device is driven by a second servo motor and is used for carrying out interval transverse heat sealing on the cylindrical film to form continuous packaging bags;

the transverse sealing reticulate pattern stamping device is driven by a third servo motor and is used for stamping lines on the transverse heat sealing surface of the packaging bag;

the easy-tearing opening cutting device is driven by a second stepping motor and is used for cutting an easy-tearing opening on the longitudinal sealing and heat sealing edge of the packaging bag;

the subpackage cutting device is driven by a fourth servo motor and is used for cutting off the middle of the transverse heat-sealing surface of the packaging bag for subpackage;

and the control device is used for controlling the rotating speeds of the first stepping motor, the second stepping motor, the first servo motor, the second servo motor, the third servo motor and the fourth servo motor.

Preferably, the fast continuous packaging machine further comprises:

the film forming device comprises a film hanging device, a film conveying device, a forming and blanking device, a longitudinal sealing and heat-sealing device, a transverse sealing reticulate pattern stamping device, an easy-tearing opening cutting device, a subpackaging cutting device and a control device.

Preferably, the film hanging device comprises a first support, a film hanging fixed shaft, a film hanging movable shaft sleeve, a film fixed end check ring, a film movable end check ring, a film check ring fixing nut, a fine adjustment nut and a movable shaft sleeve brake device, wherein one end part of the film hanging fixed shaft is fixedly arranged on the first support, the film hanging movable shaft sleeve is sleeved at the middle part of the film hanging fixed shaft through a bearing sleeve, the film fixed end check ring is fixedly sleeved at one end part of the film hanging movable shaft sleeve, the film movable end check ring is movably sleeved at the other end part of the film hanging movable shaft sleeve, the film check ring fixing nut is sleeved at the other end part external thread of the film hanging movable shaft sleeve to support the film movable end check ring, the fine adjustment nut is sleeved at the other end part external thread of the film hanging fixed shaft to finely adjust the position of the film hanging movable shaft sleeve, and the movable shaft, the brake block of the movable shaft sleeve brake device is matched with the peripheral surface of one end part of the film hanging movable shaft sleeve.

Preferably, the film feeding device comprises a second support, a film pressing mechanism, a film feeding roller and a transition roller set, wherein one end part of the film feeding roller is rotatably installed on the second support and fixedly connected with an output shaft of a first stepping motor, the first stepping motor is fixedly installed on the second support, the film pressing mechanism comprises a first adjustable frame, a lever frame, a pressing plate, a photoelectric adjusting frame, a rotary cylinder and a photoelectric sensor, the upper end of the first adjustable frame is installed on the second support, the middle part of the lever frame is movably hinged in the middle of the first adjustable frame, the upper part of the pressing plate is movably hinged at one end of the lever frame, the photoelectric adjusting frame is movably hinged at the other end of the lever frame, the middle part of the photoelectric adjusting frame is movably arranged on the rotary end of the rotary cylinder in a penetrating manner, the photoelectric sensor is arranged on a cylinder body of the rotary cylinder to sense the single-layer film, the rotary cylinder and the photoelectric sensor are both electrically connected to the control device, the transition roller group comprises a plurality of second adjustable frames and a plurality of transition rollers, one end of each second adjustable frame is mounted on the corresponding second support, and one end of each transition roller is mounted on the other end of the corresponding second adjustable frame.

Preferably, the forming and blanking device is arranged below the film feeding device, the forming and blanking device comprises a third support, a forming device, a charging basket, a discharging pipe, a rotor pump and a feeding pipe, the forming device is fixedly mounted on the third support, a bottom discharging port of the charging basket is connected with a feeding port of the rotor pump through the discharging pipe, the rotor pump is driven by a fifth servo motor, the fifth servo motor is electrically connected to the control device, a discharging port of the rotor pump is connected with a feeding end of the feeding pipe, and a discharging end of the feeding pipe leads into the forming device.

Preferably, the longitudinal sealing heat-sealing device is arranged below the forming and blanking device, the longitudinal sealing heat-sealing device comprises a fourth support, a first transmission shaft, a first driving bevel gear, a first driven bevel gear, a first driving interaction gear, a driving longitudinal sealing roller, a first driven interaction gear, a driven longitudinal sealing roller and two first pressure adjusting screws, one end of the first transmission shaft is fixedly connected with an output shaft of the first servo motor, the first driving bevel gear is fixedly sleeved at the other end of the first transmission shaft, two end parts of the driving longitudinal sealing roller and the driven longitudinal sealing roller are respectively rotatably arranged on the fourth support and are horizontally arranged in parallel, the first driven bevel gear is fixedly sleeved at one end of the driving longitudinal sealing roller and is meshed with the first driving bevel gear, the first driving interaction gear is fixedly sleeved at one end part of the driving longitudinal sealing roller, fixed cover of first passive interactive gear is established passive indulge a tip of sealing the roller and with first initiative interactive gear meshes mutually, two indulge and seal pressure adjustment lead screw and rotate respectively and install on the fourth support, the one end of first pressure adjustment lead screw with the corresponding tip screw hole of passive indulging the roller cooperatees, the other end fixed mounting of first pressure adjustment lead screw has a pressure adjustment hand wheel.

Preferably, the transverse sealing heat-sealing device is arranged below the longitudinal sealing heat-sealing device, the transverse sealing heat-sealing device comprises a fifth support, a second transmission shaft, a second driving bevel gear, a second driven bevel gear, a second driving interaction gear, a driving transverse sealing roller, a second driven interaction gear, a driven transverse sealing roller and two second pressure adjusting screw rods, one end of the second transmission shaft is fixedly connected with an output shaft of the second servo motor, the second driving bevel gear is fixedly sleeved at the other end of the second transmission shaft, two end parts of the driving transverse sealing roller and the driven transverse sealing roller are respectively rotatably arranged on the fifth support and are horizontally arranged in parallel, the second driven bevel gear is fixedly sleeved at one end of the driving transverse sealing roller and is meshed with the second driving bevel gear, the second driving interaction gear is fixedly sleeved at one end part of the driving transverse sealing roller, the fixed cover of the passive interactive gear of second is established passive horizontal seal roller one end and with the interactive gear of second initiative meshes mutually, two second pressure accommodate the lead screw rotate respectively and install on the fifth support, the one end of second pressure accommodate the lead screw with the corresponding tip screw hole of passive horizontal seal roller cooperatees, the other end fixed mounting of second pressure accommodate the lead screw has second pressure adjusting hand wheel.

Preferably, the transverse sealing reticulate pattern imprinting device is arranged below the transverse sealing heat-sealing device and comprises a sixth support, a third transmission shaft, a third driving bevel gear, a third driven bevel gear, a third driving interaction gear, a driving transverse sealing grain roller, a third driven interaction gear, a driven transverse sealing grain roller and two third pressure adjusting screw rods, one end of the third transmission shaft is fixedly connected with an output shaft of a third servo motor, the third driving bevel gear is fixedly sleeved at the other end of the third transmission shaft, two end parts of the driving transverse sealing grain roller and the driven transverse sealing grain roller are respectively rotatably arranged on the sixth support and are horizontally arranged in parallel, the third driven bevel gear is fixedly sleeved at one end of the driving transverse sealing grain roller and is meshed with the third driving bevel gear, the third driving interaction gear is fixedly sleeved at one end part of the driving transverse sealing grain roller, the third passive interaction gear is fixedly sleeved at one end of the passive transverse seal thread roller and is meshed with the third active interaction gear, two third pressure adjusting screw rods are respectively and rotatably installed on the sixth support, one end of each third pressure adjusting screw rod is matched with a corresponding end threaded hole of the passive transverse seal thread roller, and a third pressure adjusting hand wheel is fixedly installed at the other end of each third pressure adjusting screw rod; a lifting nut is fixed on the sixth support and sleeved on a vertical screw rod, a fourth driven bevel gear is fixedly sleeved at one end of the vertical screw rod and meshed with a fourth driving bevel gear, the fourth driving bevel gear is fixedly sleeved on an output shaft of a third stepping motor, and the third stepping motor is electrically connected to the control device.

Preferably, the easy-to-tear port cutting device is arranged below the transverse sealing reticulate pattern impressing device, the easy-to-tear port cutting device comprises a seventh support, a coupler, a fourth transmission shaft, a rotary mounting seat and a cutter mounting seat, the second stepping motor is fixedly mounted on the seventh support, the fourth transmission shaft is rotatably mounted on the seventh support, one end of the fourth transmission shaft is fixedly connected with an output shaft of the second stepping motor through the coupler, the rotary mounting seat is fixedly sleeved at the other end of the fourth transmission shaft, and the cutter mounting seat is fixedly mounted on the rotary mounting seat and detachably connected with a cutter; a transverse plate is fixed on the seventh support, two position-adjustable sliding blocks are fixedly sleeved on the transverse plate, and a longitudinal guide bag plate is fixed on each sliding block and symmetrically distributed in opposite directions and located beside the rotary mounting seat.

Preferably, the subpackage cutting device is arranged below the easy-to-tear opening cutting device and comprises an eighth support, a cutter shaft, a movable cutter and a fixed cutter, two end parts of the cutter shaft are rotatably arranged on the eighth support, one end of the cutter shaft is fixedly connected with an output shaft of the fourth servo motor, one end of the movable cutter is fixedly arranged in the middle of the cutter shaft, and the fixed cutter is fixedly arranged on the eighth support and matched with the movable cutter.

The invention also provides a quick continuous type packaging method, which adopts the quick continuous type packaging machine and comprises the following steps:

setting the rotating speeds of a first stepping motor, a second stepping motor, a first servo motor, a second servo motor, a third servo motor and a fourth servo motor through a control device;

the single-layer thin film is firstly fed into a film feeding device, the film feeding device is driven by the first stepping motor to draw the film at a constant speed, then the film is inserted into a forming and blanking device, and the single-layer thin film is folded in half by the forming and blanking device to form a double-layer thin film;

the first servo motor drives a longitudinal sealing and heat sealing device to continuously and longitudinally seal and seal the side opening of the double-layer film in a heat sealing manner to form a cylindrical film;

the second servo motor drives the transverse sealing and heat-sealing device to perform interval transverse heat-sealing and sealing on the cylindrical film to form continuous packaging bags;

the materials are fed into the packaging bag at regular time and quantity through the forming and blanking device;

the third servo motor drives the transverse sealing reticulate pattern stamping device to stamp lines on the transverse heat sealing surface of the packaging bag;

the second stepping motor drives the easy-tearing opening cutting device to cut an easy-tearing opening on the longitudinal sealing and heat-sealing edge of the packaging bag;

and a fourth servo motor drives a subpackage cutting device to cut the middle of the transverse heat-sealing surface of the packaging bag and divide the packaging bag into single packaging bags.

Compared with the prior art, the invention has the following beneficial effects: the quick continuous type packaging machine respectively enables the film feeding device and the easy-to-tear opening cutting device to do uniform motion through the first stepping motor and the second stepping motor, simultaneously the first stepping motor provides film pulling tension for the film feeding device, the film pulling tension of the longitudinal sealing and heat sealing device is reduced, the longitudinal sealing and heat sealing device is enabled to be attractive, the longitudinal sealing and heat sealing device, the transverse sealing and reticulate pattern impressing device and the subpackaging cutting device can adjust different rotating speeds according to the change of the length of the bag through the first servo motor, the second servo motor, the third servo motor and the fourth servo motor respectively, each motor can be adjusted at any length and any speed within a limited range through the control device, the quick continuous type packaging machine has larger adjusting space compared with the conventional mechanical structure, the problem of diversification of user packaging is solved, the machine has the function of automatic adjustment without machine halt, and the problem of manual adjustment and bag pulling correction is avoided, the automatic feeding device has the advantages of reliable work and good use effect, and can be suitable for various high-speed feeding modes, such as sauce feeding, liquid feeding, powder feeding, particle feeding and the like.

Drawings

Fig. 1 is a front view of a fast continuous packaging machine of an embodiment of the present invention.

Fig. 2 is a right side sectional view of the fast continuous packaging machine of the embodiment of the present invention.

FIG. 3 is a structural diagram of a film forming apparatus according to an embodiment of the present invention.

Fig. 4 is a front view layout diagram of the film feeding device and the forming and blanking device in the embodiment of the invention.

Fig. 5 is a right layout view of the film feeding device and the forming and blanking device in the embodiment of the invention.

Fig. 6 is a top view of a longitudinal sealing heat-seal sealing device according to an embodiment of the present invention.

Fig. 7 is a top view of a cross-sealed heat-seal sealing device in accordance with an embodiment of the present invention.

FIG. 8 is a top view of a cross-seal screen embossing apparatus according to an embodiment of the present invention.

FIG. 9 is a rear view of a cross-seal web embossing apparatus according to an embodiment of the present invention.

FIG. 10 is a left side view of a cross-seal screen embossing apparatus according to an embodiment of the present invention.

Fig. 11 is a front view of a tear-off cutting device according to an embodiment of the present invention.

Fig. 12 is a cross-sectional view taken at a-a in fig. 11.

FIG. 13 is a top view of a tear-away cutting device according to an embodiment of the present invention.

Fig. 14 is a plan view of a subpackaging and cutting apparatus according to an embodiment of the present invention.

FIG. 15 is a flow chart of a method of rapid continuous packaging according to an embodiment of the present invention.

The labels in the figure are:

1. a frame, 2, rolling a film, 3, and forming a single-layer film;

100. the film hanging device comprises a film hanging device 101, a first bracket 102, a film hanging fixed shaft 103, a film hanging movable shaft sleeve 104, a film fixed end retainer ring 105, a film movable end retainer ring 106, a film retainer ring fixed nut 107, a fine adjustment nut 108, a movable shaft sleeve brake device 109, a brake block 110 and a telescopic driving mechanism;

200. a film feeding device; 201. a first stepping motor 202, a second bracket 203, a film feeding roller 210, a film pressing mechanism 211, a first adjustable frame 212, a lever frame 213, a pressing plate 214, a photoelectric adjusting frame 215, a rotary cylinder 216, a photoelectric sensor 220, a transition roller set 221, a second adjustable frame 222 and a transition roller;

300. a forming and blanking device 301, a third support 302, a forming device 303, a charging basket 304, a discharging pipe 305, a rotor pump 306 and a feeding pipe;

400. a longitudinal sealing and heat sealing device 401, a first servo motor 402, a fourth bracket 403, a first transmission shaft 404, a first driving bevel gear 405, a first driven bevel gear 406, a first driving interactive gear 407, a driving longitudinal sealing roller 408, a first driven interactive gear 409, a driven longitudinal sealing roller 410, a first pressure adjusting screw rod 411 and a first pressure adjusting hand wheel;

500. a transverse sealing heat-sealing device 501, a second servo motor 502, a fifth bracket 503, a second transmission shaft 504, a second driving bevel gear 505, a second driven bevel gear 506, a second driving interactive gear 507, a driving transverse sealing roller 508, a second driven interactive gear 509, a driven transverse sealing roller 510, a second pressure adjusting screw rod 511 and a second pressure adjusting hand wheel;

600. a transverse seal reticulate pattern stamping device 601, a third servo motor 602, a sixth support 603, a third transmission shaft 604, a third driving bevel gear 605, a third driven bevel gear 606, a third driving interactive gear 607, a driving transverse seal roller 608, a third driven interactive gear 609, a driven transverse seal roller 610, a third pressure adjusting screw 611, a third pressure adjusting hand wheel 612, a lifting nut 613, a vertical screw 614, a fourth driven bevel gear 615, a fourth driving bevel gear 616, a third stepping motor 617, a sliding sleeve 618 and a vertical guide rod;

700. an easy-tear opening cutting device 701, a second stepping motor 702, a seventh support 703, a coupler 704, a fourth transmission shaft 705, a rotary mounting seat 706, a cutter mounting seat 707, a cutter, 708, a transverse plate 709, a sliding block 710 and a longitudinal bag guide plate;

800. a subpackage cutting device, 801, a fourth servo motor, 802, an eighth bracket, 803, a cutter shaft, 804, a movable cutter, 805 and a fixed cutter;

900. control device, 901, human-machine interface.

Detailed Description

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

As shown in fig. 1 to 2, the present embodiment provides a fast continuous type packing machine, including:

the film hanging device 100 is used for placing the rolled film 2;

the film feeding device 200 is driven by a first stepping motor 201 and is used for penetrating and conveying the single-layer film 3 pulled out from the rolled film 2;

the forming and blanking device 300 is used for penetrating the single-layer film 3, folding the single-layer film 3 into a double-layer film and blanking quantitatively at fixed time after the double-layer film is longitudinally sealed and transversely sealed;

the longitudinal sealing and heat sealing device 400 is driven by a first servo motor 401 and is used for carrying out continuous longitudinal heat sealing on the side opening of the double-layer rolled film to form a cylindrical film;

the transverse sealing and heat sealing device 500 is driven by a second servo motor 501 and is used for performing interval transverse heat sealing on the cylindrical film to form continuous packaging bags;

the transverse sealing reticulate pattern stamping device 600 is driven by a third servo motor 601 and is used for stamping lines on the transverse heat sealing surface of the packaging bag;

the easy-tearing opening cutting device 700 is driven by a second stepping motor 701 and is used for cutting an easy-tearing opening on the longitudinal sealing and heat sealing edge of the packaging bag;

the subpackage cutting device 800 is driven by a fourth servo motor 801 and is used for cutting off the middle of the transverse heat sealing surface of the packaging bag to subpackage;

a control device 900, configured to control the rotation speeds of the first stepping motor 201, the second stepping motor 701, the first servo motor 401, the second servo motor 501, the third servo motor 601, and the fourth servo motor 801.

The control device 900 preferably, but not limited to, include a PLC, such as a PLC of siemens S7-200, S7-300, etc., without limitation; in order to facilitate the operation of the production personnel, a human-machine interface 901 is connected to the control device 900, and the human-machine interface 901 preferably, but not limited to, includes a touch screen.

In this embodiment, as shown in fig. 1 to 2, the fast continuous type packing machine further includes:

the machine frame 1 (or called a cabinet) is used for installing the film hanging device 100, the film feeding device 200, the forming and blanking device 300, the longitudinal sealing and heat-sealing device 400, the transverse sealing and heat-sealing device 500, the transverse sealing and reticulate pattern impressing device 600, the easy-tearing opening cutting device 700, the subpackaging cutting device 800 and the control device 900. In the manufacturing process, the film forming device 100, the film feeding device 200, the forming and blanking device 300, the vertical sealing and heat-sealing device 400, the horizontal sealing and heat-sealing device 500, the horizontal sealing and web embossing device 600, the easy-tear-port cutting device 700, the subpackaging and cutting device 800, and the control device 900 are assembled into one machine through the frame 1, but some or all of these devices may be separately installed in other embodiments. The bottom of the machine frame 1 can be provided with casters (such as casters without brakes and/or casters with brakes) and/or height supporting legs, so that the machine can be conveniently moved through the casters, and the height and the horizontal condition of the machine can be conveniently adjusted through the supporting legs.

In this embodiment, as shown in fig. 1 to 3, the film hanging device 100 is preferably not limited to include a first bracket 101, a film hanging fixing shaft 102, a film hanging movable shaft sleeve 103, a film fixing end retaining ring 104, a film movable end retaining ring 105, a film retaining ring fixing nut 106, a fine adjustment nut 107 and a movable shaft sleeve brake device 108, the first bracket 101 is fixed on the frame 1 (specifically, on one side of the upper portion of the frame 1, on the right side of the upper portion as shown in the figure), one end portion of the film hanging fixing shaft 102 is fixedly installed on the first bracket 101, the film hanging movable shaft sleeve 103 is sleeved on the middle portion of the film hanging fixing shaft 102 through a bearing, the film fixing end retaining ring 104 is fixedly sleeved on one end portion of the film hanging movable shaft sleeve 103, the film movable end retaining ring 105 is movably sleeved on the other end portion of the film hanging movable shaft sleeve 103, the film retaining ring fixing nut 106 is sleeved on the external thread of the other end Retaining ring 105, fine setting nut 107 cover is established and is in order to right in another tip external screw thread department of hanging membrane fixed axle 102 the position of hanging membrane activity axle sleeve 103 finely tunes, activity axle sleeve brake equipment 108 is installed on first support 101, activity axle sleeve brake equipment 108 includes brake block 109 and the flexible actuating mechanism 110 of drive brake block 109, flexible actuating mechanism 110 is preferred but not be restricted to telescopic cylinder (can also be telescopic cylinder or flexible electronic jar certainly), telescopic cylinder's cylinder body is fixed on first support 101, activity axle sleeve brake equipment 108's brake block 109 with a tip outer peripheral face of hanging membrane activity axle sleeve 103 cooperatees. When in use, the film retaining ring fixing nut 106 and the film movable end retaining ring 105 are taken down firstly, then the coiled film 2 is arranged on the film hanging movable shaft sleeve 103, then the film movable end retaining ring 105 is sleeved, the center of a circle of the coiled film 2 is guided through the film fixed end retaining ring 104 and the film movable end retaining ring 105, and then the coiled film is fastened by the film retaining ring fixing nut 106; slight edge whitening is generated in the production process, the fine adjustment nut 107 can be properly adjusted for fine adjustment, and meanwhile, the inertia action of the film hanging movable shaft sleeve 103 is braked through the movable shaft sleeve braking device 108.

In this embodiment, as shown in fig. 1 to 2 and 4 to 5, the film feeding device 200 is preferably not limited to include a second support 202, a film pressing mechanism 210, a film feeding roller 203, and a transition roller set 220, the second support 202 is fixed on the frame 1 (specifically, may be on the top of the frame 1), one end of the film feeding roller 203 is rotatably mounted on the second support 202 and is fixedly connected to an output shaft of the first stepping motor 201, the first stepping motor 201 is fixedly mounted on the second support 202, the film pressing mechanism 210 includes a first adjustable frame 211, a lever frame 212, a pressing plate 213, an electro-optical adjusting frame 214, a rotary cylinder 215 (in other embodiments, a rotary cylinder, a rotary electric cylinder) and a photoelectric sensor 216, an upper end of the first adjustable frame 211 is mounted on the second support 202, a middle portion of the lever frame 212 is movably hinged to a middle portion of the first adjustable frame 211, the upper portion of the pressing plate 213 is movably hinged at one end of the lever bracket 212, the photoelectric adjusting bracket 214 is movably hinged at the other end of the lever bracket 212, the middle portion of the photoelectric adjusting bracket 214 is movably inserted into the rotating end of the rotating cylinder 215, the photoelectric sensor 216 is arranged on the cylinder body of the rotating cylinder 215 to sense the single-layer film 3, the rotating cylinder 215 and the photoelectric sensor are both electrically connected to the control device 900, the distance between the photoelectric sensor 216 and the single-layer film 3 is sensed by the photoelectric sensor 216, the distance between the single-layer film 3 and the photoelectric sensor 216 is adjusted by the rotating cylinder 215, the photoelectric adjusting bracket 214, the lever bracket 212 and the pressing plate 213, so as to achieve the function of dynamic tensioning adjustment, the transition roller set 220 comprises a plurality of second adjustable brackets 221 and a plurality of transition rollers 222, one end of the second adjustable brackets 221 is installed on the second bracket 202, one end of the transition roller 222 is mounted on the other end of the second adjustable frame 221. When the film forming device is used, the single-layer film 3 is pulled out from the film hanging device 100, hung along the direction shown in the figure and sent into the forming and blanking device 300 through the film sending roller 203, the action of the film sending device 200 and the action of the longitudinal sealing and heat sealing device 400 run synchronously, and the pulling force of the longitudinal sealing and heat sealing device 400 for film pulling can be reduced through the pulling force provided by the first stepping motor 201, so that the longitudinal sealing and heat sealing are attractive.

In this embodiment, referring to fig. 1 to 2 and fig. 4 to 5, the forming and blanking device 300 is disposed below the film feeding device 200, the forming and blanking device 300 preferably includes but is not limited to a third bracket 301, a former 302, a material barrel 303, a material outlet pipe 304, a rotor pump 305 and a material feeding pipe 306, the third bracket 301 may be fixed on the top of a fourth bracket or on the front side of the frame 1, the former 302 is fixedly mounted on the third bracket 301, the lower portion of the former 302 extends to between the vertical sealing and heat sealing device 400 and the horizontal sealing and heat sealing device 500, such as to be close to the upper portion of the horizontal sealing and heat sealing device 500, so as to facilitate material feeding, the material barrel 303 is fixed on the frame 1 (specifically, the right side of the lower portion), the bottom material outlet of the material barrel 303 is connected to a material inlet port of the rotor pump 305 through the material outlet pipe 304, the rotor pump 305 is driven by a fifth servo motor, the fifth servo motor is electrically connected to the control device, and the discharge port of the rotor pump 305 is connected to the feed end of the feed pipe 306, and the discharge end of the feed pipe 306 opens into the former 302. When in use, the single-layer film 3 firstly penetrates into the upper part of the former 302, and the double-layer film after being folded is penetrated out of the lower part of the former 302; during blanking, the material in the material barrel 303 is conveyed to the former 302 through the rotor pump 305, and falls into a cylindrical bag with longitudinally sealed side edges and transversely sealed bottom edges from the lower part of the former 302.

In this embodiment, as shown in fig. 6 with reference to fig. 1 to 2, the longitudinal sealing heat sealing device 400 is disposed below the forming and blanking device 300, the longitudinal sealing heat sealing device 400 preferably includes, but is not limited to, a fourth bracket 402, a first transmission shaft 403, a first driving bevel gear 404, a first driven bevel gear 405, a first driving interaction gear 406, a driving longitudinal sealing roller 407, a first driven interaction gear 408, a driven longitudinal sealing roller 409, and two first pressure adjusting screws 410, the fourth bracket 402 is fixed on the front side of the frame 1, the first servo motor 401 is fixed in the frame 1, one end of the first transmission shaft 403 is fixedly connected to an output shaft of the first servo motor 401, the first driving bevel gear 404 is fixedly sleeved on the other end of the first transmission shaft 403, two end portions of the driving longitudinal sealing roller 407 and the driven longitudinal sealing roller 409 are both rotatably mounted on the fourth bracket 402 and horizontally parallel to each other, the fixed cover of first passive bevel gear 405 is established the one end of initiative longitudinal sealing roller 407 and with first initiative bevel gear 404 meshes mutually, the fixed cover of first initiative interactive gear 406 is established a tip of initiative longitudinal sealing roller 407, the fixed cover of first passive interactive gear 408 is established a tip of passive longitudinal sealing roller 409 and with first initiative interactive gear 406 meshes mutually, two it rotates respectively to seal the pressure adjustment lead screw and installs to indulge on the fourth support 402, the one end of first pressure adjustment lead screw 410 with the corresponding tip screw hole of passive longitudinal sealing roller 409 cooperatees, the other end fixed mounting of first pressure adjustment lead screw 410 has first pressure adjustment hand wheel 411, can increase and decrease the involution pressure between initiative longitudinal sealing roller 407 and the passive longitudinal sealing roller 409 through first pressure adjustment hand wheel 411. When the vertical sealing machine is used, the first servo motor 401 rotates, firstly, power is transmitted to the first transmission shaft 403, then, the power is transmitted to the first driven bevel gear 405 through the first driving bevel gear 404, the power is transmitted to the driving vertical sealing roller 407 through a key, and the driven vertical sealing roller 409 rotates together through the first driving interaction gear 406 and the first driven interaction gear 408.

In this embodiment, as shown in fig. 7 in combination with fig. 1-2, the horizontal sealing heat sealing device 500 is disposed below the vertical sealing heat sealing device 400, the horizontal sealing heat sealing device 500 preferably includes, but is not limited to, a fifth bracket 502, a second transmission shaft 503, a second driving bevel gear 504, a second driven bevel gear 505, a second driving interaction gear 506, a driving horizontal sealing roller 507, a second driven interaction gear 508, a driven horizontal sealing roller 509, and two second pressure adjusting screws 510, the fifth bracket 502 is fixed on the front side of the machine frame 1, the second servo motor 501 is fixed in the machine frame 1, one end of the second transmission shaft 503 is fixedly connected to an output shaft of the second servo motor 501, the second driving bevel gear 504 is fixedly sleeved on the other end of the second transmission shaft 503, both ends of the driving horizontal sealing roller 507 and the driven horizontal sealing roller 509 are respectively rotatably mounted on the fifth bracket 502 and are disposed horizontally in parallel, the fixed cover of second passive bevel gear 505 is established the one end of initiative horizontal seal roller 507 and with second initiative bevel gear 504 meshes mutually, the fixed cover of second initiative interactive gear 506 is established the tip of initiative horizontal seal roller 507, the fixed cover of second passive interactive gear 508 is established the tip of passive horizontal seal roller 509 and with the meshing of second initiative interactive gear 506 mutually, two second pressure adjustment lead screw 510 rotates respectively to be installed on fifth support 502, the one end of second pressure adjustment lead screw 510 with the corresponding tip screw hole of passive horizontal seal roller 509 cooperatees, the other end fixed mounting of second pressure adjustment lead screw 510 has second pressure adjustment hand wheel 511, can increase and decrease the involution pressure between initiative horizontal seal roller 507 and the passive horizontal seal roller 509 through second pressure adjustment hand wheel 511. When the double-shaft transverse sealing device is used, the second servo motor 501 rotates, power is transmitted to the second transmission shaft 503 firstly, then the power is transmitted to the second driven bevel gear 505 through the second driving bevel gear 504, the power is transmitted to the driving transverse sealing roller 507 through keys, and the driven transverse sealing roller 509 rotates together through the second driving interaction gear 506 and the second driven interaction gear 508.

In the present embodiment, as shown in fig. 8 to 10 in combination with fig. 1 to 2, the cross sealing mesh imprinting device 600 is disposed below the cross sealing heat sealing device 500, the cross sealing mesh imprinting device 600 preferably includes but is not limited to a sixth support 602, a third transmission shaft 603, a third driving bevel gear 604, a third driven bevel gear 605, a third driving interaction gear 606, a driving cross sealing roller 607, a third driven interaction gear 608, a driven cross sealing roller 609, and two third pressure adjusting screws 610, the sixth support 602 is fixed on the front side of the frame 1, the third servo motor 601 is fixed in the frame 1, one end of the third transmission shaft 603 is fixedly connected to an output shaft of the third servo motor 601, the third driving bevel gear 604 is fixedly secured to the other end of the third transmission shaft 603, both ends of the driving cross sealing roller 607 and the driven cross sealing roller 607 are rotatably mounted on the sixth support 602 and horizontally arranged, the third driven bevel gear 605 is fixedly sleeved at one end of the driving transverse seal corrugated roller 607 and meshed with the third driving bevel gear 604, the third driving interaction gear 606 is fixedly sleeved at one end of the driving transverse seal corrugated roller 607, the third driven interaction gear 608 is fixedly sleeved at one end of the driven transverse seal corrugated roller 609 and meshed with the third driving interaction gear 606, two third pressure adjusting screw rods 610 are respectively and rotatably installed on the sixth bracket 602, one end of each third pressure adjusting screw rod 610 is matched with a corresponding threaded hole at the end of the driven transverse seal corrugated roller 609, a third pressure adjusting hand wheel 611 is fixedly installed at the other end of each third pressure adjusting screw rod 610, and the seal pressure between the driving transverse seal corrugated roller 607 and the driven transverse seal corrugated roller 609 can be increased or decreased through the third pressure adjusting hand wheel 611; a lifting nut 612 (located in the frame 1) is fixed on the sixth bracket 602, the lifting nut 612 is sleeved on a vertical screw rod 613, a fourth driven bevel gear 614 is fixedly sleeved at one end of the vertical screw rod 613, the fourth driven bevel gear 614 is engaged with a fourth driving bevel gear 615, the fourth driving bevel gear 615 is fixedly sleeved on an output shaft of a third stepping motor 616, and the third stepping motor 616 is fixed on the frame 1 (specifically in the frame 1) and is electrically connected to the control device 900; in order to guide the horizontal sealing mesh imprint device 600 to move up and down, sliding sleeves 617 are respectively fixed on the rear sides of the left and right ends of the sixth bracket 602, two vertical guide rods 618 are fixed on the frame 1 (specifically, in the frame 1), the sliding sleeves 617 are slidably sleeved on the corresponding vertical guide rods 618, and the lifting nut 612 is located in the center between the two sliding sleeves 617. When the device is used, the third servo motor 601 rotates, firstly, power is transmitted to the third transmission shaft 603, then, the power is transmitted to the third driven bevel gear 605 through the third driving bevel gear 604, the power is transmitted to the driving transverse seal line roller 607 through keys, and the driven transverse seal line roller 609 rotates together through the third driving interactive gear 606 and the third driven interactive gear 608. When a user replaces a new bag length packaging film, the touch screen can adjust the forward and reverse rotation of the third stepping motor 616 to generate power, the power is transmitted to the fourth driven bevel gear 614 through the fourth driving bevel gear 615 and then transmitted to the vertical screw rod 613 to drive the vertical screw rod 613 to rotate, so that the lifting nut 612 fixed on the sixth support 602 drives the transverse sealing reticulate pattern stamping device 600 to move up and down, and the reticulate pattern is stamped on the transverse sealing hot face.

In the present embodiment, as shown in fig. 11 to 13 in combination with fig. 1 to 2, the easy-tear cutting device 700 is disposed below the cross-seal screen embossing device 600, the tear-off cut-off device 700 is preferably not limited to include a seventh bracket 702, a shaft coupling 703, a fourth transmission shaft 704, a rotation mounting seat 705 and a cutter mounting seat 706, the seventh bracket 702 is fixed on the front side of the frame 1, the second stepping motor 701 is fixedly installed on the seventh bracket 702 and is located in the frame 1, the fourth transmission shaft 704 is rotatably mounted on the seventh bracket 702, one end of the fourth transmission shaft 704 is fixedly connected with the output shaft of the second stepping motor 701 through the coupling 703, the rotary mounting seat 705 is fixedly sleeved at the other end of the fourth transmission shaft 704, and the cutter mounting seat 706 is fixedly mounted on the rotary mounting seat 705 and detachably connected with a cutter 707; a transverse plate 708 is fixed on the seventh bracket 702, two position-adjustable sliding blocks 709 are sleeved on the transverse plate 708 (for example, by fastening screws), two longitudinal guide bag plates 710 are fixed on the two sliding blocks 709 respectively, and the two longitudinal guide bag plates 710 are symmetrically distributed in opposite directions and are located beside the rotary mounting seat 705. When the cutting device is used, the second stepping motor 701 drives the rotary mounting seat 705 to rotate through the fourth transmission shaft 704, and the rotary mounting seat 705 drives the cutter mounting seat 706 to rotate, so that the cutter 707 on the cutter mounting seat 706 performs cutting on the longitudinal sealed edge of the packaging bag beside to form an easy-to-tear opening; according to the action signal of the horizontal seal and the preset bag length, the PLC is used for automatic calculation, and meanwhile, fine adjustment can be carried out through the touch screen under the state of no stop, so that the cutting position of the easy-to-tear opening can be confirmed, and meanwhile, the cutting position can be automatically corrected under various speeds and various bag lengths.

In this embodiment, as shown in fig. 14 and with reference to fig. 1 to 2, the subpackaging and cutting device 800 is disposed below the easy-tear-opening cutting device 700, the subpackaging and cutting device 800 preferably includes but not limited to an eighth support 802, a cutter shaft 803, a movable cutter 804 and a fixed cutter 805, two end portions of the cutter shaft 803 are rotatably mounted on the eighth support 802, the eighth support 802 is fixed on the front side of the frame 1, the fourth servo motor 801 is fixed on the eighth frame 1, one end of the cutter shaft 803 is fixedly connected with an output shaft of the fourth servo motor 801, one end of the movable cutter 804 is fixedly mounted in the middle of the cutter shaft 803, and the fixed cutter 805 is fixedly mounted on the eighth support 802 and is matched with the movable cutter 804. When the cutting device is used, the fourth servo motor 801 drives the movable knife 804 to rotate through the cutter shaft 803, and the movable knife is matched with the fixed knife 805 once in each rotation to cut off a packaging bag; the cutting position of the packaging bag can be confirmed by PLC automatic calculation according to the action signal of the horizontal seal and the preset bag length and fine adjustment without stopping the machine through a touch screen, and the cutting position can be automatically corrected under various speeds and bag lengths.

This quick continuous type packagine machine adopts full automatization (full electronic control basically), can accomplish the bag length adjustment on the touch-sensitive screen, seal the position control, easily tear a mouthful position control, cutter position control, the pure digitalization of unloading weight adjustment, it needs to use the instrument to adjust each part of machinery to have avoided the user to change the different bag length of packing material, and because adopt the long mode of PLC computer control bag, make this machine have longer bag length adjustment range than mechanical transmission's packagine machine, the diversified problem of customer packing has been solved.

As shown in fig. 15 in combination with fig. 1 to 14, the present embodiment further provides a fast continuous packaging method, which adopts the fast continuous packaging machine and includes the following steps:

the rotation speeds of the first stepping motor 201, the second stepping motor 701, the first servo motor 401, the second servo motor 501, the third servo motor 601 and the fourth servo motor 801 are set through the control device 900;

firstly, feeding a single-layer film 3 into a film feeding device 200, driving the film feeding device 200 to draw the film at a constant speed through a first stepping motor 201, then penetrating the film into a forming and blanking device 300, and folding the single-layer film 3 in half through the forming and blanking device 300 to form a double-layer film;

the first servo motor 401 drives the longitudinal sealing and heat sealing device 400 to continuously and longitudinally seal and seal the side opening of the double-layer film in a heat sealing manner to form a cylindrical film;

the second servo motor 501 drives the transverse sealing device 500 to perform transverse heat sealing at intervals on the cylindrical film to form continuous packaging bags;

the materials are fed into the packaging bag at regular time and quantity through the forming and blanking device 300;

the third servo motor 601 drives the transverse sealing reticulate pattern stamping device 600 to stamp lines on the transverse heat sealing surface of the packaging bag, so that transverse heat sealing edges are firmer and the bag is not easy to break;

the second stepping motor 701 drives the easy-to-tear opening cutting device 700 to cut an easy-to-tear opening on the longitudinal sealing and heat-sealing edge of the packaging bag;

the fourth servo motor 801 drives the subpackage cutting device 800 to cut the middle of the transverse heat-sealing surface of the packaging bag, and the packaging bag is divided into single packaging bags.

It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A fast continuous packaging machine, comprising:

the film hanging device is used for placing a rolled film;

the film feeding device is driven by a first stepping motor and is used for penetrating and conveying the single-layer film pulled out from the rolled film;

the forming and blanking device is used for penetrating the single-layer film, oppositely folding the single-layer film into a double-layer film and blanking quantitatively at fixed time after longitudinal sealing and transverse sealing of the double-layer film;

the longitudinal sealing and heat sealing device is driven by a first servo motor and is used for carrying out continuous longitudinal heat sealing on the side opening of the double-layer rolled film to form a cylindrical film;

the transverse sealing and heat sealing device is driven by a second servo motor and is used for carrying out interval transverse heat sealing on the cylindrical film to form continuous packaging bags;

the transverse sealing reticulate pattern stamping device is driven by a third servo motor and is used for stamping lines on the transverse heat sealing surface of the packaging bag;

the easy-tearing opening cutting device is driven by a second stepping motor and is used for cutting an easy-tearing opening on the longitudinal sealing and heat sealing edge of the packaging bag;

the subpackage cutting device is driven by a fourth servo motor and is used for cutting off the middle of the transverse heat-sealing surface of the packaging bag for subpackage;

and the control device is used for controlling the rotating speeds of the first stepping motor, the second stepping motor, the first servo motor, the second servo motor, the third servo motor and the fourth servo motor.

2. The machine according to claim 1, characterized in that: further comprising:

the film forming device comprises a film hanging device, a film conveying device, a forming and blanking device, a longitudinal sealing and heat-sealing device, a transverse sealing reticulate pattern stamping device, an easy-tearing opening cutting device, a subpackaging cutting device and a control device.

3. The machine according to claim 1 or 2, characterized in that: the film hanging device comprises a first support, a film hanging fixed shaft, a film hanging movable shaft sleeve, a film fixed end check ring, a film movable end check ring, a film check ring fixing nut, a fine adjustment nut and a movable shaft sleeve brake device, wherein one end part of the film hanging fixed shaft is fixedly arranged on the first support, the film hanging movable shaft sleeve is sleeved at the middle part of the film hanging fixed shaft through a bearing sleeve, the film fixed end check ring is fixedly sleeved at one end part of the film hanging movable shaft sleeve, the film movable end check ring is movably sleeved at the other end part of the film hanging movable shaft sleeve, the film check ring fixing nut is sleeved at the other end part external thread of the film hanging movable shaft sleeve to abut against the film movable end check ring, the fine adjustment nut is sleeved at the other end part external thread of the film hanging fixed shaft to finely adjust the position of the film hanging movable shaft sleeve, and the, the brake block of the movable shaft sleeve brake device is matched with the peripheral surface of one end part of the film hanging movable shaft sleeve.

4. The machine according to claim 1 or 2, characterized in that: the film feeding device comprises a second support, a film pressing mechanism, a film feeding roller and a transition roller set, one end part of the film feeding roller is rotatably installed on the second support and is fixedly connected with an output shaft end of a first stepping motor, the first stepping motor is fixedly installed on the second support, the film pressing mechanism comprises a first adjustable frame, a lever frame, a pressing plate, a photoelectric adjusting frame, a rotary cylinder and a photoelectric sensor, the upper end of the first adjustable frame is installed on the second support, the middle part of the lever frame is movably hinged in the middle of the first adjustable frame, the upper part of the pressing plate is movably hinged at one end of the lever frame, the photoelectric adjusting frame is movably hinged at the other end of the lever frame, the middle part of the photoelectric adjusting frame is movably arranged on the rotary end of the rotary cylinder in a penetrating manner, the photoelectric sensor is arranged on a cylinder body of the rotary cylinder to sense the single-layer film, the rotary cylinder and the photoelectric sensor are electrically connected to the control device, the transition roller group comprises a plurality of second adjustable frames and a plurality of transition rollers, one end of each second adjustable frame is installed on the corresponding second support, and one end of each transition roller is installed on the other end of the corresponding second adjustable frame; the forming and blanking device is arranged below the film feeding device and comprises a third support, a forming device, a charging basket, a discharging pipe, a rotor pump and a feeding pipe, the forming device is fixedly arranged on the third support, a bottom discharging port of the charging basket is connected with a feeding port of the rotor pump through the discharging pipe, the rotor pump is driven by a fifth servo motor, the fifth servo motor is electrically connected to the control device, a discharging port of the rotor pump is connected with a feeding end of the feeding pipe, and a discharging end of the feeding pipe leads into the forming device.

5. The machine according to claim 1 or 2, characterized in that: the longitudinal sealing heat-sealing device is arranged below the forming and blanking device and comprises a fourth support, a first transmission shaft, a first driving bevel gear, a first driven bevel gear, a first driving interaction gear, a driving longitudinal sealing roller, a first driven interaction gear, a driven longitudinal sealing roller and two first pressure adjusting screw rods, wherein one end of the first transmission shaft is fixedly connected with an output shaft of a first servo motor, the first driving bevel gear is fixedly sleeved at the other end of the first transmission shaft, two end parts of the driving longitudinal sealing roller and the driven longitudinal sealing roller are respectively rotatably arranged on the fourth support and are horizontally arranged in parallel, the first driven bevel gear is fixedly sleeved at one end of the driving longitudinal sealing roller and is meshed with the first driving bevel gear, and the first driving interaction gear is fixedly sleeved at one end part of the driving longitudinal sealing roller, fixed cover of first passive interactive gear is established passive indulge a tip of sealing the roller and with first initiative interactive gear meshes mutually, two indulge and seal pressure adjustment lead screw and rotate respectively and install on the fourth support, the one end of first pressure adjustment lead screw with the corresponding tip screw hole of passive indulging the roller cooperatees, the other end fixed mounting of first pressure adjustment lead screw has a pressure adjustment hand wheel.

6. The machine according to claim 1 or 2, characterized in that: the transverse sealing heat-sealing device is arranged below the longitudinal sealing heat-sealing device and comprises a fifth support, a second transmission shaft, a second driving bevel gear, a second driven bevel gear, a second driving interaction gear, a driving transverse sealing roller, a second driven interaction gear, a driven transverse sealing roller and two second pressure adjusting screw rods, one end of the second transmission shaft is fixedly connected with an output shaft of the second servo motor, the second driving bevel gear is fixedly sleeved at the other end of the second transmission shaft, two end parts of the driving transverse sealing roller and the driven transverse sealing roller are respectively rotatably arranged on the fifth support and are horizontally arranged in parallel, the second driven bevel gear is fixedly sleeved at one end of the driving transverse sealing roller and is meshed with the second driving bevel gear, and the second driving interaction gear is fixedly sleeved at one end part of the driving transverse sealing roller, the fixed cover of the passive interactive gear of second is established passive horizontal seal roller one end and with the interactive gear of second initiative meshes mutually, two second pressure accommodate the lead screw rotate respectively and install on the fifth support, the one end of second pressure accommodate the lead screw with the corresponding tip screw hole of passive horizontal seal roller cooperatees, the other end fixed mounting of second pressure accommodate the lead screw has second pressure adjusting hand wheel.

7. The machine according to claim 1 or 2, characterized in that: the transverse sealing reticulate pattern embossing device is arranged below the transverse sealing heat-sealing device and comprises a sixth support, a third transmission shaft, a third driving bevel gear, a third driven bevel gear, a third driving interactive gear, a driving transverse sealing roll, a third driven interactive gear, a driven transverse sealing roll and two third pressure adjusting screw rods, one end of the third transmission shaft is fixedly connected with an output shaft of a third servo motor, the third driving bevel gear is fixedly sleeved at the other end of the third transmission shaft, two end parts of the driving transverse sealing roll and the driven transverse sealing roll are respectively rotatably arranged on the sixth support and are horizontally arranged in parallel, the third driven bevel gear is fixedly sleeved at one end of the driving transverse sealing roll and is meshed with the third driving bevel gear, the third driving interactive gear is fixedly sleeved at one end part of the driving transverse sealing roll, the third passive interaction gear is fixedly sleeved at one end of the passive transverse seal thread roller and is meshed with the third active interaction gear, two third pressure adjusting screw rods are respectively and rotatably installed on the sixth support, one end of each third pressure adjusting screw rod is matched with a corresponding end threaded hole of the passive transverse seal thread roller, and a third pressure adjusting hand wheel is fixedly installed at the other end of each third pressure adjusting screw rod; a lifting nut is fixed on the sixth support and sleeved on a vertical screw rod, a fourth driven bevel gear is fixedly sleeved at one end of the vertical screw rod and meshed with a fourth driving bevel gear, the fourth driving bevel gear is fixedly sleeved on an output shaft of a third stepping motor, and the third stepping motor is electrically connected to the control device.

8. The machine according to claim 1 or 2, characterized in that: the easy-to-tear port cutting device is arranged below the transverse sealing reticulate pattern stamping device and comprises a seventh support, a coupler, a fourth transmission shaft, a rotary mounting seat and a cutter mounting seat, the second stepping motor is fixedly mounted on the seventh support, the fourth transmission shaft is rotatably mounted on the seventh support, one end of the fourth transmission shaft is fixedly connected with an output shaft of the second stepping motor through the coupler, the rotary mounting seat is fixedly sleeved at the other end of the fourth transmission shaft, and the cutter mounting seat is fixedly mounted on the rotary mounting seat and detachably connected with a cutter; a transverse plate is fixed on the seventh support, two position-adjustable sliding blocks are fixedly sleeved on the transverse plate, and a longitudinal guide bag plate is fixed on each sliding block and symmetrically distributed in opposite directions and located beside the rotary mounting seat.

9. The machine according to claim 1 or 2, characterized in that: the subpackage cutting device is arranged below the easy-to-tear opening cutting device and comprises an eighth support, a cutter shaft, a movable cutter and a fixed cutter, two end parts of the cutter shaft are rotatably arranged on the eighth support, one end of the cutter shaft is fixedly connected with an output shaft of a fourth servo motor, one end of the movable cutter is fixedly arranged in the middle of the cutter shaft, and the fixed cutter is fixedly arranged on the eighth support and matched with the movable cutter.

10. A rapid-succession packaging method characterized by using the rapid-succession packaging machine of claim 1 and comprising the steps of:

setting the rotating speeds of a first stepping motor, a second stepping motor, a first servo motor, a second servo motor, a third servo motor and a fourth servo motor through a control device;

the single-layer thin film is firstly fed into a film feeding device, the film feeding device is driven by the first stepping motor to draw the film at a constant speed, then the film is inserted into a forming and blanking device, and the single-layer thin film is folded in half by the forming and blanking device to form a double-layer thin film;

the first servo motor drives a longitudinal sealing and heat sealing device to continuously and longitudinally seal and seal the side opening of the double-layer film in a heat sealing manner to form a cylindrical film;

the second servo motor drives the transverse sealing and heat-sealing device to perform interval transverse heat-sealing and sealing on the cylindrical film to form continuous packaging bags;

the materials are fed into the packaging bag at regular time and quantity through the forming and blanking device;

the third servo motor drives the transverse sealing reticulate pattern stamping device to stamp lines on the transverse heat sealing surface of the packaging bag;

the second stepping motor drives the easy-tearing opening cutting device to cut an easy-tearing opening on the longitudinal sealing and heat-sealing edge of the packaging bag;

and a fourth servo motor drives a subpackage cutting device to cut the middle of the transverse heat-sealing surface of the packaging bag and divide the packaging bag into single packaging bags.

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