CN111762388B

CN111762388B - Full-automatic packaging bag opening and sealing processing technology

Info

Publication number: CN111762388B
Application number: CN202010662100.6A
Authority: CN
Inventors: 柏晓珏
Original assignee: Fuyang Bainde New Material Technology Co ltd
Current assignee: Yancheng Yuesheng Plastic Products Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2022-08-02
Anticipated expiration: 2040-07-10
Also published as: CN111762388A

Abstract

The invention relates to the technical field of full-automatic packaging processing, in particular to a full-automatic packaging bag opening and sealing processing technology, the method comprises the steps of packaging bag unreeling, bag pre-opening, cutting, bag opening, unlocking, rotating and reversing, box pushing, bag opening positioning, bagging and sealing, wherein a discharge mechanism is used for drawing and outputting a rolled packaging bag material roll, so that the end part of an opening of a packaging bag is opened through friction, the bag opening component is sleeved with the bag opening component for opening the bag, the bag opening component is utilized to open the packaging bag, the packaging bag after opening the bag is placed in the fixing box and the bag opening is fixed, the automatic bagging and the automatic sealing of wrapping bag of material are handled, solve the full automatic technical problem of physics bagging-off, at whole bagging-off in-process, need not the manual work, and accomplished aseptic processing.

Description

Full-automatic packaging bag opening and sealing processing technology

Technical Field

The invention relates to the technical field of full-automatic packaging processing, in particular to a full-automatic packaging bag opening and sealing processing technology.

Background

In a supermarket or a fresh vegetable store, cleaned fresh vegetables are often packaged, so that a customer can directly process the cleaned fresh vegetables after buying the fresh vegetables, and in the packaging process, manual packaging is often adopted, so that the working efficiency is low, complete sterile treatment cannot be guaranteed in the packaging process, and the cleaned fresh vegetables are easily polluted.

Patent document CN201611220329.4 discloses a bag opening device for a packaging machine, which comprises a bag opening mechanism and a bag placing platform for placing packaging bags in a stacked manner; the bag opening mechanism comprises a support frame, and a bag opening assembly, a bag pressing assembly and a bag blowing assembly are arranged on the support frame; the bag opening component is used for inserting into a packaging bag with an opened bag opening and opening the packaging bag; prop the bag subassembly and be provided with a pair ofly, and symmetrical arrangement is on the support frame, is provided with the drive of linear drive subassembly in the support frame and props bag subassembly rectilinear movement, props the bag subassembly and includes the control lever, is provided with a pair of bag component that props that can open each other on the control lever, the both sides of support frame still be provided with the gag lever post, the bottom of control lever is provided with and is used for driving the rotatory rotary control pole of control lever with the contact of gag lever post.

Although the opening of the package is realized in the above patent, in the opening process, the package bag needs to be opened through the combination of the bag opening component, the bag pressing component and the bag blowing component, the structure is complicated, the package bag is easily damaged, and the continuous opening of the package bag cannot be realized.

Disclosure of Invention

Aiming at the problems, the invention provides a full-automatic bag opening and sealing processing technology for a packaging bag, which is characterized in that a discharge mechanism is utilized to pull and output a rolled packaging bag material roll, so that the end part of an opening of the packaging bag is opened through friction, the packaging bag is sleeved on a bag opening assembly to be opened, the packaging bag is opened by the bag opening assembly, the opened packaging bag is placed in a fixed box, the bag opening is fixed, the automatic bagging of materials and the automatic sealing processing of the packaging bag are carried out, the technical problem of full automation of physical bagging is solved, and the full-automatic packaging process is realized without manpower in the whole bagging process.

In order to achieve the purpose, the invention provides the following technical scheme:

a full-automatic packaging bag opening and sealing processing technology comprises the following steps:

firstly, unreeling a packaging bag, wherein a packaging bag material roll in a packaging bag output box is pulled by a discharge roller positioned on one side of the packaging bag material roll, and horizontally outputting the packaging bag along a discharge channel on the packaging bag output box;

pre-opening the bag, and when the horizontally output packaging bag is conveyed to a crack between a cutting roller group and a pressing roller which are arranged at the tail end of the discharging channel in parallel, the cutting roller group and the pressing roller rotate in a differential speed and reverse direction to enable the opening end of the packaging bag to be opened to form a horn mouth;

cutting, namely after the cutting roller group rotates for a circle, extending a cutting blade in the cutting roller group from the cutting roller group to the pressing roller, and cutting the connecting part of the packaging bag and the packaging bag material roll;

opening the bag, sleeving the opened packaging bag on a bag opening assembly right facing the discharging channel, driving the adsorption plates symmetrically arranged on the bag opening assembly to slide backwards along the length direction of the mounting plate by a pushing assembly to open the sleeved packaging bag, and stretching the air bag positioned between the adsorption plates when the adsorption plates slide backwards so as to adsorb the packaging bag on the side wall sleeved with the adsorption plates;

unlocking, namely after the packaging bag is unfolded, abutting unlocking blocks on the adsorption plate with touch blocks on the locking units on two sides of the mounting plate in the length direction to enable the locking units to release the connection between the mounting plate and the second rotating bracket;

rotating and reversing, wherein the packaging bags after opening are driven by the first rotating driving piece and the second rotating driving piece respectively, so that the packaging bags rotate 90 degrees along the X axis and then rotate 90 degrees along the Z axis, the openings of the packaging bags after reversing are arranged upwards and are positioned right above the conveying lines arranged adjacent to the bag opening assemblies;

pushing the packaging bags into a box, wherein the packaging bags after direction change are vertically pushed downwards by the pushing assembly and are separated from the second rotating support along with the mounting plate, and the packaging bags are pushed into a fixed box positioned right below the packaging bags;

step seven, positioning the bag opening, wherein after the packaging bag is pushed into the fixed box, a first rack arranged on the mounting plate is meshed with a first gear on the fixed box, and the positioning plate is turned over to be matched with the magnetic stone to fix and limit the bag opening of the packaging bag through the rotation of the first gear;

step eight, bagging, wherein the fixed box after the bag opening of the packaging bag is fixed and limited is transferred to a position right below a feeding mechanism on a conveying path of the conveying line through conveying of the conveying line, after the fixed box is sensed by a photoelectric sensor on the feeding mechanism, an electric discharging valve is controlled to be started, and the feeding box feeds the packaging bag in the fixed box; and

step nine, seal, accomplish reinforced fixed case by the transfer chain is carried to and is shifted to being located under the mechanism that seals of reinforced mechanism rear side, by it is right to seal the mechanism the opening of the wrapping bag in the fixed case carries out heat-seal processing.

As an improvement, in the second step, a differential driving assembly is arranged at the end part of the same side of the cutting roller group and the pressing roller in the axial direction, and the differential driving assembly comprises:

the driving motor is arranged on one side of the cutting roller group and drives the cutting roller group to rotate;

the first differential gear is sleeved on the cutting roller set; and

and the second differential gear is sleeved on the compression roller, is meshed with the first differential gear, and has a gear ratio with the first differential gear larger than 1.

As an improvement, in the second step and the third step, the cutting roller group further includes:

the outer roller is arranged in a hollow mode, sealing end covers are installed at openings at two axial end portions of the outer roller in a threaded connection mode, and the outer roller rotates on the discharging channel through the sealing end covers;

the eccentric shaft is coaxial with the outer roller, two ends of the eccentric shaft are fixedly arranged on the discharging channel, two ends of the cutting blade in the length direction are arranged in sliding grooves formed in the corresponding sealing end covers in a sliding mode, and the end, pointing to the outer roller, of the cutting blade is abutted against the eccentric shaft; and

the elastic telescopic piece is installed in the sliding groove, and a blocking block for blocking the elastic telescopic piece is arranged at the opening of the sliding groove.

As an improvement, a one-way exhaust nozzle is arranged on one side of the air bag, which is back to the pushing assembly.

As an improvement, in the fifth step, the locking unit includes:

the optical axis is vertically arranged on the side wall;

the sliding block is arranged on the optical axis in a sliding mode and provided with the touch block;

the spring piece is sleeved on the optical axis and arranged between the sliding block and the side wall; and

and the bolt is vertically arranged on the sliding block, penetrates through the side wall and is inserted into the limiting hole in the mounting plate to lock the second rotating support and the mounting plate.

As an improvement, in the sixth step, the second rotating bracket is in a U-shaped configuration, a slide rail is disposed on a side wall symmetrically disposed on the second rotating bracket, a limiting block is disposed on the side wall, the limiting block is disposed along a length direction of the slide rail, and the limiting block is located at an open end of the second rotating bracket, the mounting plate is disposed along the slide rail and slidably mounted on the side wall, a supporting leg corresponding to the slide rail is disposed on the mounting plate, a limiting bar abutting against the limiting block is disposed at an end of the supporting leg and cooperating with the limiting block, and the limiting bar is disposed perpendicular to the supporting leg.

As a modification, in the seventh step, the fixing box further includes:

the box body is fixedly arranged on the conveying belt of the conveying line, an opening is formed in the upper portion of the box body, and the magnetic stone is arranged on the side wall of the box body corresponding to the positioning plate;

the rotating shafts are symmetrically and freely rotatably arranged on two sides of the opening of the box body;

the hinged fork is fixedly connected with the rotating shaft, symmetrically arranged at two axial ends of the rotating shaft, provided with a U-shaped hinged part at the swinging end part, and hinged to the hinged part, and swings along with the rotation of the rotating shaft;

the first gears are arranged at two axial end parts of the rotating shaft and are arranged in a half-tooth mode, and the mounting plate is provided with a first rack which is correspondingly meshed with the first gears; and

and the second gear and the first gear are arranged side by side in a one-to-one correspondence mode and are arranged in a half-tooth mode, and teeth on the second gear and teeth on the first gear are matched with each other to form a whole circle of teeth.

As an improvement, in the ninth step, the sealing mechanism includes:

installing a frame;

the lifting cylinder is vertically arranged at the top of the mounting rack and is vertically pushed downwards in a reciprocating manner;

the mounting frame is mounted at the pushing end of the lifting cylinder and is arranged in a U shape;

the first side pushing cylinders are symmetrically arranged on the mounting frame and push in a reciprocating manner along the conveying direction of the conveying line;

the second rack is arranged at the pushing end of the first side pushing cylinder, is meshed with the corresponding second gear, drives the positioning plate to turn over, and releases the packaging bag in the fixed box;

the second side pushing cylinders are symmetrically arranged on the mounting frame, are positioned below the first side pushing cylinder and push the conveying line in a reciprocating manner along the conveying direction of the conveying line; and

seal the hot plate, seal the hot plate install in on the second side pushes away the propelling movement of cylinder and serves, it is right in the fixed incasement the opening of wrapping bag carries out heat-seal processing.

As an improvement, in the eighth step, when the inner packing bags of the fixed box are filled, the packing bags in the fixed box right below the sealing mechanism in the ninth step are synchronously heated and sealed.

The system of the invention has the beneficial effects that:

(1) according to the full-automatic packaging bag material-opening device, the discharge mechanism is used for pulling and outputting the rolled packaging bag material roll, the end part of the opening of the packaging bag is opened through friction, the packaging bag is sleeved on the bag-opening assembly for opening, the packaging bag is opened through the bag-opening assembly, the packaging bag after opening is placed in the fixed box, the bag opening is fixed, automatic material bagging and automatic sealing treatment of the packaging bag are carried out, the technical problem of full automation of physical bagging is solved, manual work is not needed in the whole bagging process, and aseptic processing is achieved;

(2) according to the invention, the discharge mechanism is used for pulling and outputting the rolled packaging bag material roll, so that the end part of the opening of the packaging bag is opened through friction, and then the packaging bag is sleeved on the bag opening assembly for opening, and the packaging bag is opened through the bag opening assembly, and meanwhile, the discharge mechanism is used for cutting the packaging bag, so that the packaging bag is separated from the packaging bag material roll, the continuous bag opening treatment of the packaging bag is realized, the packaging bag can be quickly opened for packaging, and the problems of folding and pollution of the packaging bag caused by manual bag opening are avoided;

(3) according to the invention, the cutting roller group and the pressing roller are respectively driven to rotate by the first differential gear and the second differential gear with different tooth numbers, so that the rotation angular speeds between the cutting roller group and the pressing roller are different, friction force is formed on the packaging bag, and the opening of the packaging bag is opened by matching with the viscosity of the surfaces of the cutting roller group and the pressing roller, so that the friction force is ensured to be as small as possible, the packaging bag is prevented from wrinkling, and meanwhile, the opening of the packaging bag is ensured to be always in a horn mouth by utilizing the viscosity, and the packaging bag is favorably and smoothly sleeved on the suction plate;

(4) according to the invention, when the suction plate slides backwards on the mounting plate, the air bag is expanded, the air pressure in the air bag is reduced, and the air bag is adsorbed by the suction plate in cooperation with the normal air pressure acting outside the packaging bag, so that the packaging bag is thoroughly opened in the process of movement of the suction plate, and the suction plate slides in opposite directions, so that the air bag is compressed, and the air is sprayed out, so that the packaging bag and the suction plate are quickly separated, the structure is simple, and the effect is obvious;

(5) according to the automatic feeding and sealing device, the fixed box for rotary conveying is arranged on the conveying line, the packaging bags after being opened are fixed by the fixed box, so that the bag openings at the tops of the packaging bags are always in an opened state, and then the packaging bags are sequentially conveyed to the lower parts of the feeding mechanism and the sealing mechanism along with conveying of the conveying line to perform automatic feeding and sealing work;

(6) the fixing box is provided with the turnover positioning plate, and the opening of the packaging bag in the fixing box is fixed by utilizing the matching of the positioning plate and the magnetic stone, so that the packaging bag is fixed in the fixing box, and the packaging bag is ensured to be in a positioning and opening state all the time;

(7) the sealing mechanism is provided with a second rack which enables the positioning plate to turn over and the opening of the packaging bag to lose the limit, so that the opening of the packaging bag loses the constraint before the packaging bag is subjected to heat sealing, and the packaging bag is subjected to heat sealing treatment.

In conclusion, the automatic bag opening device has the advantages of high automation degree, simplified structure, quickness in bag opening, convenience in use and the like, and is particularly suitable for automatically opening the packaging bags in public places such as supermarkets, shopping malls and the like.

Drawings

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

FIG. 2 is a schematic perspective view of the present invention;

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

FIG. 4 is a schematic side view of the adsorption bag opening mechanism of the present invention;

FIG. 5 is a schematic front view of the adsorption bag opening mechanism of the present invention;

FIG. 6 is a perspective view of the discharge mechanism of the present invention;

FIG. 7 is a first schematic sectional view of a cutting roller set according to the present invention;

FIG. 8 is an enlarged view of the structure at A in FIG. 7;

FIG. 9 is a schematic view of a second embodiment of the cutting roller assembly of the present invention;

FIG. 10 is a schematic cross-sectional view of the adsorption bag opening mechanism of the present invention;

FIG. 11 is an enlarged schematic view of a locking unit of the present invention;

FIG. 12 is a schematic cross-sectional view of the balloon of the present invention;

FIG. 13 is a perspective view of the mounting plate of the present invention;

FIG. 14 is a schematic perspective view of a stent according to the present invention

FIG. 15 is a front view of the sealing device of the present invention;

FIG. 16 is a partial cross-sectional view of the closure mechanism of the present invention;

FIG. 17 is a perspective view of the fixing box of the present invention;

FIG. 18 is a partial sectional view of the stationary box of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example 1:

as shown in fig. 1, a full-automatic bag opening and sealing processing technology for packaging bags comprises the following steps:

firstly, unwinding a packaging bag, wherein a packaging bag material roll 10 in a packaging bag output box 1 is pulled by a discharge roller 21 on one side of the packaging bag material roll 10, and horizontally outputting the packaging bag 101 along a discharge channel 12 on the packaging bag output box 1;

secondly, pre-opening the bag, and when the horizontally output packaging bag 101 is conveyed to a crack between a cutting roller group 22 and a pressing roller 23 which are positioned at the tail end of the discharging channel 12 and arranged in parallel, the cutting roller group 22 and the pressing roller 23 rotate in a differential speed and reverse direction, so that the opening end of the packaging bag 101 is spread to form a horn mouth;

cutting, after the cutting roller group 22 rotates for one circle, the cutting blades 224 in the cutting roller group 22 extend out of the cutting roller group 22 to the pressing roller 23, and the connecting part of the packaging bag 101 and the packaging bag material roll 10 is cut;

step four, opening the bag, wherein the opened packaging bag 101 is sleeved on a bag opening assembly 32 which is opposite to the discharge channel 12, the adsorption plates 321 symmetrically arranged on the bag opening assembly 32 are driven by a pushing assembly 33 to slide along the length direction of the mounting plate 316 in a back-to-back manner, so that the sleeved packaging bag 101 is opened, and when the adsorption plates 321 slide in the back-to-back manner, the air bags 322 positioned between the adsorption plates 321 are stretched, so that the packaging bag 101 is adsorbed on the side wall which is sleeved with the adsorption plates 321;

step five, unlocking, namely after the packaging bag 101 is unfolded, the unlocking blocks 324 on the adsorption plate 321 are abutted against the touch blocks 325 on the locking units 317 on two sides of the mounting plate 316 in the length direction, so that the locking units 317 can release the connection between the mounting plate 316 and the second rotary bracket 315;

step six, rotating and reversing, wherein the packaging bags 101 after opening are driven by the first rotating driving piece 312 and the second rotating driving piece 314 respectively, so that the packaging bags 101 rotate 90 degrees along the X axis and then rotate 90 degrees along the Z axis, and the openings of the packaging bags 101 after reversing are arranged upwards and are positioned right above the conveying lines 4 arranged adjacent to the bag opening assemblies 32;

sixthly, the packaging bags 101 are pushed into the box, the packaging bags 101 after reversing are pushed vertically downwards by the pushing assembly 33, and the packaging bags 101 are pushed into the fixed box 41 right below the packaging bags along with the separation of the mounting plate 316 and the second rotating bracket 315;

step seven, positioning the bag mouth, wherein after the packaging bag 101 is pushed into the fixed box 41, a first rack 417 arranged on the mounting plate 316 is meshed with a first gear 416 on the fixed box 41, and the positioning plate 414 is turned over to be matched with the magnetic stone 415 to fix and limit the bag mouth of the packaging bag 101 through the rotation of the first gear 416;

step eight, bagging, wherein the fixed box 41 after the bag opening of the packaging bag 101 is fixed and limited is transferred to a position right below a feeding mechanism 5 on a conveying path of the conveying line 4 through the conveying of the conveying line 4, after the fixed box 41 is sensed by a photoelectric sensor 53 on the feeding mechanism 5, an electric discharging valve 52 is controlled to be started, and the feeding box 51 feeds the packaging bag 101 in the fixed box 41; and

step nine, seal, accomplish reinforced fixed case 41 by the transfer line 4 is carried to be located under the mechanism 6 that seals of reinforced 5 rear sides, by it is right to seal the mechanism 6 the opening of wrapping bag 101 in the fixed case 41 carries out heat-seal treatment.

In the second step, a differential drive unit 24 is provided at the same side end portion in the axial direction of the cutting roller group 22 and the pinch roller 23, and the differential drive unit 24 includes:

a driving motor 241, wherein the driving motor 241 is installed at one side of the cutting roller group 22 and drives the cutting roller group 22 to rotate;

a first differential gear 242, wherein the first differential gear 242 is sleeved on the cutting roller set 22; and

the second differential gear 243 is sleeved on the pressure roller 23, is meshed with the first differential gear 242, and has a gear ratio greater than 1 with respect to the first differential gear 242.

Further, the circumferential surfaces of the cutting roller group 22 and the pinch roller 21 are provided with adhesive material layers having an adhesive property only enough to support the pinch roller 21 of the cutting roller group 22 to adhesively rotate and convey the packaging bag 101 for a distance and then to be detached from the packaging bag 101.

It should be noted that, the packaging bag roll 10 releases the packaging bag 101, the packaging bag 101 passes through the gap between the cutting roller set 22 and the pressing roller 23, because the teeth numbers of the first differential gear 242 and the second differential gear 243 are not equal, the rotation angles of the cutting roller set 22 and the pressing roller 23 are not equal, and the outer diameters of the cutting roller set 22 and the pressing roller 23 are equal, so the friction force of the contact part between the cutting roller set 22 and the pressing roller 23 and the packaging bag 101 is not equal, and the opening part of the packaging bag 101 is opened by matching with the viscosity of the surfaces of the cutting roller set 22 and the pressing roller 21, the opening part of the packaging bag 101 is sleeved on the bag opening assembly 32, the packaging bag 101 is completely opened through the bag opening assembly 32, after the packaging bag 101 is opened, the packaging bag 101 is pushed into the fixed box 41 on the conveying line 4 on one side by virtue of the pushing assembly 33, the fixed box 41 transfers the opened packaging bag 101 to the lower part of the feeding mechanism 5 by virtue of the conveying line 4, the blank bag 101 is filled with the material by the automatic feeding of the feeding process 5, and then the fixed box 41 is transferred to the lower side of the sealing mechanism 6 with the bag 101 again to complete the automatic sealing process.

It should be further noted that if the friction force between the cutting roller set 22 and the pressure roller 23 is too large, wrinkles may occur on the surface of the packaging bag 101, and if the viscosity between the cutting roller set 22 and the pressure roller 23 is too large, the packaging bag 101 may adhere to the cutting roller set 22 and the pressure roller 23 and cannot be separated from each other, so that the friction force between the cutting roller set 22 and the pressure roller 23 and the viscosity between the cutting roller set 22 and the pressure roller 23 need to be combined, the friction force between the cutting roller set 22 and the pressure roller 23 is as small as possible, and the viscosity liquid on the cutting roller set 22 and the pressure roller 23 is reduced as low as possible, so that the packaging bag 101 may be smoothly separated from the cutting roller set 22 and the pressure roller 23.

In the second and third steps, the cutting roller set 22 further includes:

the outer roller 221 is arranged in a hollow manner, and sealing end covers 222 are installed at openings at two axial ends of the outer roller 221 in a threaded connection manner and rotate on the discharging channel 12 through the sealing end covers 222;

an eccentric shaft 223, wherein the eccentric shaft 223 is coaxially disposed with the outer roller 221, both ends of the eccentric shaft 223 are fixedly mounted on the discharging channel 12, both ends of the cutting blade 224 in the length direction are slidably disposed in the corresponding sliding slots 225 disposed on the end cover 222, and the end pointing to the outer roller 221 is disposed to abut against the eccentric shaft 223; and

the elastic expansion piece 226, the elastic expansion piece 226 is installed in the sliding slot 225, and a stop block 228 for stopping the elastic expansion piece 226 is arranged at the opening of the sliding slot 225.

It should be noted that the cutting blade 224 is provided in the cutting roller set 22, and the eccentric shaft 223 is abutted against the rotating cutting blade 224, so that the cutting blade 224 protrudes from the outer roller 221, the package 101 is cut, the package 101 is separated from the package material roll 10, and the free end of the package material roll 10 is still in the gap between the cutting roller set 22 and the pressing roller 21 after cutting.

In a preferred embodiment, a one-way exhaust nozzle 3221 is disposed at a side of the air bag 322 opposite to the pushing assembly 33.

It should be noted that, when the suction plate 21 is restored to the position opposite to the discharging channel 12, the suction plate 21 is still in the open state, and then the suction plate 21 is folded, in the folding process, the air bag 322 is compressed, and a part of the air in the air bag 322 is discharged from the one-way exhaust nozzle 3221 to be sprayed out toward the opening of the packaging bag 101, so that the packaging bag 101 is always in the open state, which is favorable for the matching of the folded suction plate 321 and the packaging bag 101.

As a preferred implementation manner, in the step five, the locking unit 317 includes:

an optical axis 3171, wherein the optical axis 3171 is vertically disposed on the sidewall 3150;

a slider 3172, wherein the slider 3172 is slidably disposed on the optical axis 3171, and the touch block 325 is mounted thereon;

a spring member 3173, wherein the spring member 3173 is disposed on the optical axis 3171 and disposed between the slider 3172 and the sidewall 3150; and

a bolt 3174, wherein the bolt 3174 is vertically disposed on the slider 3172, and penetrates through the sidewall 3150 to be inserted into the limiting hole 3120 of the mounting plate 316, so as to lock the second rotating bracket 315 and the mounting plate 316.

After the packaging bag 101 is mounted on the suction plate 321, the suction plate 321 slides back to both sides along the mounting plate 312 by the pushing of the pushing cylinder 331, in the sliding process of the mounting plate 312, the air bag 322 is pulled by the suction plate 321, the air bag 322 is continuously enlarged, the air bag 322 is enlarged, the air pressure in the air bag 322 is reduced, the packaging bag 101 is adsorbed on the suction plate 321, the packaging bag 101 is spread by the suction plate 321, when the suction plate 321 is maximally expanded, the unlocking block 324 is matched with the touch block 325 to separate the bolt 3134 from the limiting hole 3120, the bracket 311 is disengaged from the mounting plate 312, and then by the rotational driving of the first and second

rotary drivers

312 and 314, the packaging bags 101 sucked by the suction plate 321 are transferred into the fixed box 41 on the transfer line 4 by rotation, and are fixed by the fixed box 41 and transferred.

As a preferable embodiment, in the sixth step, the second rotating bracket 315 is U-shaped, a sliding rail 3151 is disposed on a side wall 3150 symmetrically disposed on the second rotating bracket 315, a limiting block 3152 is disposed on the side wall 3150, the limiting block 3152 is symmetrically disposed along the length direction of the sliding rail 3151, the limiting block 3152 is located at one end of the opening of the second rotating bracket 315, the mounting plate 316 is slidably mounted on the side wall 3150 along the sliding rail 3151, a supporting leg 3161 correspondingly matched with the sliding rail 3151 is disposed on the mounting plate 316, a limiting strip 3162 abutting against the limiting block 3152 for limiting is disposed at an end of the supporting leg 3161, and the limiting strip 3162 is disposed perpendicular to the supporting leg 3161.

It should be noted that, when the mounting plate 316 and the second rotating bracket 315 slide relatively, the mounting plate 316 slides more stably by the guidance of the sliding rail 3151, and the mounting plate 316 is limited by the cooperation of the remaining supporting legs 3162 of the limiting bar 3162, so as to avoid the mounting plate 316 from sliding excessively.

In a preferred embodiment, in the seventh step, the fixing box 41 further includes:

the box 411 is fixedly installed on the conveying belt 40 of the conveying line 4, an opening is formed in the upper portion of the box 411, and the magnetic stone 415 is arranged on the side wall of the box 411 corresponding to the positioning plate 414;

the rotating shafts 412 are symmetrically and freely rotatably arranged on two sides of the opening of the box 411;

the hinged fork 413 is fixedly connected with the rotating shaft 412, symmetrically arranged at two axial ends of the rotating shaft 412, and provided with a U-shaped hinged part 4131 at the swinging end part, and the positioning plate 414 is hinged on the hinged part 4131 and swings with the rotation of the rotating shaft 412;

a first gear 416, wherein the first gear 416 is mounted at two axial ends of the rotating shaft 412, and is half-toothed, and the mounting plate 316 is provided with a first rack 417 which is correspondingly engaged with the first gear 416; and

the second gear 418 and the first gear 416 are arranged side by side in a one-to-one correspondence manner, and are half-tooth arrangement, and teeth on the second gear 418 and teeth on the first gear 416 are matched with each other to form a complete circle of teeth.

It should be noted that, in the process of pushing the packaging bag 101, the first rack 417 installed on the mounting plate 316 is pushed synchronously with the packaging bag 101, after the packaging bag 101 is sent into the box 411, the first rack 417 is engaged with the first gear 416, the rotating shaft 412 is driven to rotate by the first gear 416, and then the positioning plate 414 on the hinge fork 413 is driven to turn over, because the first gear 416 is half-tooth, after the hinge fork 413 turns over 180 °, under the action of gravity, the positioning plate 414 continues to turn over and is attracted to the magnetic stone 415, so as to fix the opening position of the packaging bag 101 at the magnetic stone 415.

It is further noted that, since the first gear 416 is half-toothed, when the first rack 417 is reset, the first gear 416 is not engaged again.

It should be noted that, since the sidewall of the box 411 has a thickness, in order to attach the positioning plate 414 to the magnetic stone 415 on the box 411, the positioning plate 414 is hinged to the hinge fork 413, and in order to prevent the positioning plate 414 from being turned too much on the hinge fork 413, a limit block for limiting the turning angle of the positioning plate 414 is disposed on the hinge portion 4131 of the hinge fork 413.

In a preferred embodiment, in the ninth step, the sealing mechanism 6 includes:

a mounting frame 61;

the lifting cylinder 62 is vertically arranged at the top of the mounting frame 61, and the lifting cylinder 62 is vertically pushed downwards in a reciprocating manner;

the mounting frame 63 is mounted at the pushing end of the lifting cylinder 62, and the mounting frame 63 is arranged in a U shape;

the first side pushing cylinders 64 are symmetrically arranged on the mounting frame 63 and push the mounting frame 64 in a reciprocating manner along the conveying direction of the conveying line 4;

the second rack 65 is mounted on the pushing end of the first side pushing cylinder 64, and is meshed with the corresponding second gear 418 to drive the positioning plate 414 to turn over and release the packaging bag 101 in the fixed box 41;

the second side pushing cylinders 66 are symmetrically arranged on the mounting frame 63, are positioned below the first side pushing cylinder 64, and push the conveyor line 4 in a reciprocating manner along the conveying direction; and

seal hot plate 67, seal hot plate 67 install in the propelling movement of second side push cylinder 66 is served, and it is right in the fixed case 41 the opening of wrapping bag 101 carries out heat-seal processing.

It should be noted that, when the sealing mechanism 6 performs the heat sealing process on the packaging bag 101, the lifting cylinder 62 first drives the mounting frame 63 to descend and cover the upper side of the fixed box 41, then the first side pushing cylinder 64 and the second side pushing cylinder 66 are synchronously operated, the second rack 65 is engaged with the second gear 418 on the fixed box 41, the rotating shaft 412 is rotated, the positioning plate 414 is separated from the magnetic stone 415, and meanwhile, the sealing heating plate 67 clamps the opening of the released packaging bag 101, and the opening of the packaging bag 101 is heat sealed by heating.

In a preferred embodiment, in the eighth step, when the bags 101 are filled into the stationary box 41, the bag 101 in the stationary box 41 immediately below the sealing mechanism 6 in the ninth step is simultaneously subjected to the heat sealing treatment.

Example 2:

as shown in fig. 2 to 6, a fully automatic bag opening and sealing processing system for packaging bags comprises:

opening bagging apparatus I, it includes wrapping bag delivery box 1, discharge mechanism 2 and adsorbs opening bagging apparatus 3 to open bagging apparatus I, be provided with the accommodation space 11 that holds wrapping bag material book 10 in the wrapping bag delivery box 1, be provided with the confession on the wrapping bag delivery box 1 the discharging channel 12 of wrapping bag material book 10 output, discharging mechanism 2 install in on the discharging channel 12, it includes the edge discharging channel 12 is from interior discharging roller 21, cutting roller group 22 and the pinch roller 23 that sets gradually to the outside, discharging roller 21, cutting roller group 22 and the equal parallel arrangement of pinch roller 23, just cutting roller group 22 is located the top of pinch roller 23, cutting roller group 22's rotation angular velocity V1 with there is the relation in the rotation angular velocity V2 of pinch roller 23: v1 ≠ V2, and the outer circumferential surfaces of the cutting roller group 22 and the pressing roller 23 are provided with adhesive material layers, the free end of the packaging bag material roll 10 passes through the discharging mechanism 2 and is horizontally output from the free end of the packaging bag material roll 10 by the discharging mechanism 2, and the packaging bag 101 at the free end of the packaging bag material roll 10 is opened by friction of the discharging mechanism 2, the adsorption bag opening mechanism 3 is adjacently arranged at one side of the packaging bag output box 1 and is just opposite to the discharging channel 12, and the adsorption bag opening mechanism comprises a rotatably arranged mounting frame 31, a bag opening assembly 32 arranged on the mounting frame 31 and a pushing assembly 33 pushing the bag opening assembly 32, the bag opening assembly 32 is inserted into the opened packaging bag 101, and the pushing assembly 33 pushes the bag opening assembly 32 to open the packaging bag 101; and

sealing device II, sealing device II includes transfer chain 4, reinforced mechanism 5 and seals mechanism 6, 4 horizontal transport of transfer chain sets up, and the equidistance is carried on it has a plurality of fixed casees 41, and this fixed case 41 is received open bag subassembly 32 struts wrapping bag 101, reinforced mechanism 5 reaches seal mechanism 6 and follow the direction of delivery of transfer chain 4 erects in proper order directly over transfer chain 4, reinforced mechanism 5 is to being located directly under it wrapping bag 101 in the fixed case 41 carries out the material and loads, seal mechanism 6 and load the completion material that is located directly under it wrapping bag 101 seals the processing.

Wherein, the same side end in the cutting roller group 22 and the pressure roller 23 axial direction is provided with a differential drive assembly 24, and this differential drive assembly 24 includes:

As shown in fig. 7 to 9, as a preferred embodiment, the cutting roller group 22 includes:

the eccentric shaft 223 is coaxially arranged with the outer roller 221, and two ends of the eccentric shaft 223 are fixedly arranged on the discharging channel 12;

a cutting blade 224, wherein both ends of the cutting blade 224 in the length direction are slidably disposed in corresponding slide grooves 225 disposed on the end cover 222, and the end of the cutting blade directed to the outer roller 221 is disposed to interfere with the eccentric shaft 223; and

It should be noted that, a cutting blade 224 is arranged in the cutting roller set 22, and through the interference of the eccentric shaft 223 and the rotating cutting blade 224, the cutting blade 224 extends out of the outer roller 221, and cuts the packaging bag 101, so that the packaging bag 101 is separated from the packaging bag material roll 10, and the free end of the packaging material roll 10 after cutting is still in the nip between the cutting roller set 22 and the pressing roller 21 and is clamped, and the cutting roller set 22 and the pressing roller 21 rotate to directly convey the free end forward without falling off.

As shown in fig. 13 and 14, as a preferred embodiment, the mounting bracket 31 includes:

the mounting bracket 311, the mounting bracket 311 is fixedly arranged;

a first rotary drive 312, the first rotary drive 312 being mounted on the top of the mounting bracket 311;

a first rotary bracket 313, the first rotary bracket 313 being mounted on the first rotary driver 312 and being rotated in the Z-axis direction by the first rotary driver 312;

a second rotary driver 314, the second rotary driver 314 being mounted on the top of the first rotary bracket 313;

the second rotating bracket 315 is U-shaped, a sliding rail 3151 is arranged on a side wall 3150 of the second rotating bracket 315, a limiting block 3152 is arranged on the side wall 3150, the limiting blocks 3152 are symmetrically arranged along the length direction of the sliding rail 3151, and the limiting block 3152 is positioned at one end of the opening of the second rotating bracket 315;

the mounting plate 316 is slidably mounted on the side wall 3150 along the sliding rail 3151, a supporting leg 3161 correspondingly matched with the sliding rail 3151 is arranged on the mounting plate 316, a limiting strip 3162 abutting against the limiting block 3152 for limiting is arranged at the end of the supporting leg 3161, and the limiting strip 3162 is perpendicular to the supporting leg 3161; and

and locking units 317, the locking units 317 being respectively mounted on the corresponding sidewalls 3150, the locking units 317 locking the second rotating bracket 315 and the mounting plate 316.

As shown in fig. 11, further, the locking unit 317 includes:

an optical axis 3171, where the optical axis 3171 is vertically disposed on the side wall 3150, and is disposed on another surface of the side wall 3150 with respect to the sliding rail 3151;

a slider 3172, the slider 3172 being slidably disposed on the optical axis 3171;

As shown in fig. 10 to 12, further, the bag opening assembly 32:

the adsorption plates 321 are symmetrically and slidably mounted on the mounting plate 316, when the adsorption plates 321 are closed, the end parts pointing to the discharge channel 12 are sharp-angled, the interior of the adsorption plates 321 is hollow, and a plurality of suction holes 3211 are formed in the local outer side walls of the adsorption plates 321;

the air bags 322 are arranged between the symmetrically arranged adsorption plates 321, are respectively communicated with the adsorption plates 321 on the two sides through the telescopic air pipes 323, and are provided with one-way exhaust nozzles 3221 at one side back to the pushing assembly 33; and

the unlocking blocks 324 are respectively installed on the corresponding adsorption plates 321 and abut against the corresponding contact blocks 325 on the sliding block 3172, so that the sliding block 3172 is lifted along the optical axis 3171, and the insertion and fixation of the bolt 3174 and the limiting hole 3120 are released.

Further, the pushing assembly 33 includes:

the pushing cylinder 331 is installed on the installation bracket 311, and a pushing end of the pushing cylinder 331 is arranged to point to the installation plate 316; and

and a pushing rod 332, wherein one end of the pushing rod 332 is hinged to the pushing end of the pushing cylinder 331, and the other end of the pushing rod 332 is hinged to the corresponding adsorption plate 321.

After the packaging bag 101 is mounted on the suction plate 321, the suction plate 321 slides back to both sides along the mounting plate 312 by the pushing of the pushing cylinder 331, in the sliding process of the mounting plate 312, the air bag 322 is pulled by the suction plate 321, the air bag 322 is continuously increased, the air bag 322 is increased, the air pressure in the air bag 322 is reduced, the packaging bag 101 is adsorbed on the suction plate 321, the packaging bag 101 is spread by the suction plate 321, when the suction plate 321 is maximally expanded, the unlocking block 324 is matched with the touch block 325 to separate the bolt 3134 from the limiting hole 3120, the bracket 311 is disengaged from the mounting plate 312, and then by the rotational driving of the first and second

rotary drivers

312 and 314, the packaging bag 101 sucked by the suction plate 321 is transferred into the fixed box 41 on the conveyor line 4, fixed by the fixed box 41, and then conveyed.

Further, when the suction plate 21 is restored to face the discharging channel 12, the suction plate 21 is still in an open state, then the suction plate 21 is folded, in the folding process, the air bag 322 is compressed, and a part of air in the air bag 322 is discharged from the one-way exhaust nozzle 3221 and is sprayed out towards the opening of the packaging bag 101, so that the packaging bag 101 is always in an open state, and the folded suction plate 321 is favorably sleeved with the packaging bag 101.

The unidirectional venting nozzle 3221 is internally provided with a venting membrane 3222 which elastically swings, when the airbag 322 is compressed, the venting membrane 3222 does not block the unidirectional venting nozzle 3221, and when the airbag 322 expands, the venting membrane 3222 is under the action of airflow entering the airbag 322 from the outside, the venting membrane 3222 is matched with a limiting ring in the unidirectional venting nozzle 3221 to form blocking seal for the unidirectional venting nozzle 3221, so that the airbag 322 is prevented from being communicated with the outside through the unidirectional venting nozzle 3221.

As shown in fig. 17 and 18, as a preferred embodiment, the fixing case 41 includes:

a box 411, wherein the box 411 is fixedly arranged on the conveying belt 40 of the conveying line 4, and the upper part of the box 411 is provided with an opening;

the hinge fork 413 is fixedly connected with the rotating shaft 412, symmetrically arranged at two axial ends of the rotating shaft 412, and provided with a U-shaped hinge part 4131 at the swinging end part;

a positioning plate 414, wherein the positioning plate 414 is hinged to the hinge portion 4131 and swings with the rotation of the rotating shaft 412;

a magnet 415, wherein the magnet 415 is disposed on the sidewall of the box 411 corresponding to the positioning plate 414;

It should be further noted that, since the sidewall of the box 411 has a thickness, in order to make the positioning plate 414 adhere to the magnetic stone 415 on the box 411, the positioning plate 414 is hinged to the hinge fork 413, and in order to avoid the positioning plate 414 from being turned over excessively on the hinge fork 413, a limiting block for limiting the turning angle of the positioning plate 414 is disposed on the hinge portion 4131 of the hinge fork 413.

As a preferred embodiment, as shown in fig. 15, the charging mechanism 5 includes:

the device comprises a feed box 51, wherein the top of the feed box 51 is provided with a feed pipe 511, and the bottom of the feed box 51 is provided with a discharge pipe 512;

the electric discharge valve 52 is arranged on the discharge pipe 512, and controls the opening and closing of the discharge pipe 512; and

and the photoelectric sensor 53 is arranged right below the charging box 51, and is used for sensing the fixed box 41 conveyed to the position right below the discharging pipe 512 and controlling the start and stop of the electric discharging valve 52.

When the photoelectric sensor 53 senses the fixed box 41 conveyed on the conveying line, the photoelectric sensor 53 sends a signal to control the conveying line 4 to stop working, the fixed box 41 stops right below the feeding box 51, the electric discharge valve 52 is pneumatic, and the discharge pipe 512 below the feeding box 51 is controlled to be opened to physically fill the packaging bag 101 in the fixed box 41.

Further, when the feeding mechanism 5 feeds the packaging bag 101 in the fixed box 41 whose transport is stopped, the synchronous sealing mechanism 6 also has the fixed box 41 whose transport is stopped, and the packaging bag 101 in the fixed box 41 is subjected to the heat sealing treatment

As shown in fig. 15 and 16, as a preferred embodiment, the sealing mechanism 6 includes:

a mounting frame 61;

the lifting cylinder 62 is vertically installed at the top of the installation rack 61, and the lifting cylinder 62 is vertically pushed downwards in a reciprocating manner;

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A full-automatic packaging bag opening and sealing processing technology is characterized by comprising the following steps:

firstly, unwinding a packaging bag, wherein a packaging bag material roll (10) positioned in a packaging bag output box (1) is pulled by a discharge roller (21) positioned on one side of the packaging bag material roll (10), and horizontally outputting the packaging bag (101) along a discharge channel (12) on the packaging bag output box (1);

secondly, pre-opening the bag, and when the horizontally output packaging bag (101) is conveyed to a crack between a cutting roller set (22) and a pressing roller (23) which are positioned at the tail end of the discharging channel (12) and arranged in parallel, the cutting roller set (22) and the pressing roller (23) rotate in a differential speed reverse direction, so that the opening end of the packaging bag (101) is spread to form a horn mouth, and the outer diameters of the cutting roller set (22) and the pressing roller (23) are consistent;

cutting, wherein after the cutting roller group (22) rotates for one circle, a cutting blade (224) positioned in the cutting roller group (22) extends out of the cutting roller group (22) and faces the pressing roller (23), and the connecting part of the packaging bag (101) and the packaging bag material roll (10) is cut;

fourthly, opening the bag, sleeving the opened packaging bag (101) on a bag opening assembly (32) which is right opposite to the discharging channel (12), driving adsorption plates (321) symmetrically arranged on the bag opening assembly (32) to slide back to back along the length direction of an installation plate (316) by a pushing assembly (33), so that the sleeved packaging bag (101) is opened, and stretching an air bag (322) positioned between the adsorption plates (321) when the adsorption plates (321) slide back to back, so that the packaging bag (101) is adsorbed on the side wall sleeved with the adsorption plates (321);

step five, unlocking, namely after the packaging bag (101) is unfolded, enabling unlocking blocks (324) on the adsorption plate (321) to be abutted against touch blocks (325) on locking units (317) on two sides of the mounting plate (316) in the length direction, and enabling the locking units (317) to release the connection between the mounting plate (316) and a second rotating bracket (315);

step six, rotating and reversing, wherein the packaging bags (101) after opening are driven by a first rotating driving part (312) and a second rotating driving part (314) respectively, so that the packaging bags (101) rotate 90 degrees along the X axis and then rotate 90 degrees along the Z axis, the openings of the packaging bags (101) after reversing are arranged upwards and are positioned right above the conveying lines (4) arranged adjacent to the bag opening assemblies (32);

sixthly, the packaging bags (101) are pushed into the box, the packaging bags (101) after reversing are vertically pushed downwards by the pushing assembly (33), and the packaging bags (101) are pushed into the fixed box (41) located right below the packaging bags along with the separation of the mounting plate (316) and the second rotating bracket (315);

seventhly, positioning the bag mouth, wherein after the packaging bag (101) is pushed into the fixed box (41), a first rack (417) arranged on the mounting plate (316) is meshed with a first gear (416) on the fixed box (41), and the positioning plate (414) is turned over to be matched with the magnetic stone (415) to fix and limit the bag mouth of the packaging bag (101) through the rotation of the first gear (416);

step eight, bagging, wherein the fixed box (41) after the bag opening of the packaging bag (101) is fixed and limited is transferred to the position right below a feeding mechanism (5) on the conveying path of the conveying line (4) through the conveying of the conveying line (4), after the fixed box (41) is sensed by a photoelectric sensor (53) on the feeding mechanism (5), an electric discharging valve (52) is controlled to be started, and the feeding box (51) feeds the packaging bag (101) in the fixed box (41); and

step nine, seal, accomplish fixed case (41) after feeding in raw material by transfer chain (4) are carried and are shifted to and be located under the mechanism (6) of sealing of reinforced mechanism (5) rear side, by it is right to seal mechanism (6) the opening of wrapping bag (101) in fixed case (41) carries out heat-seal treatment.

2. The fully automatic bag opening and sealing process of claim 1, wherein in the second step, a differential driving assembly (24) is arranged at the same axial end of the cutting roller set (22) and the pressing roller (23), and the differential driving assembly (24) comprises:

the driving motor (241), the said driving motor (241) is installed on one side of the said cutting roller group (22), it drives the said cutting roller group (22) to rotate;

the first differential gear (242), the said first differential gear (242) is set up on the said cutting roller group (22); and

the second differential gear (243) is sleeved on the pressing roller (23), meshed with the first differential gear (242), and the gear ratio between the second differential gear (243) and the first differential gear (242) is larger than 1.

3. The full-automatic bag opening and sealing processing technology of claim 1, wherein in the second step and the third step, the cutting roller group (22) further comprises:

the outer roller (221) is arranged in a hollow mode, sealing end covers (222) are installed at openings at two axial end portions of the outer roller (221) in a threaded connection mode, and the outer roller rotates on the discharging channel (12) through the sealing end covers (222);

the eccentric shaft (223) is coaxial with the outer roller (221), two ends of the eccentric shaft (223) are fixedly installed on the discharging channel (12), two ends of the cutting blade (224) in the length direction are arranged in sliding grooves (225) formed in the corresponding sealing end covers (222) in a sliding mode, and the end, pointing to the outer roller (221), of the cutting blade is arranged in a mode of abutting against the eccentric shaft (223); and

the elastic telescopic piece (226), the elastic telescopic piece (226) is installed in the sliding groove (225), and a blocking block (228) for blocking the elastic telescopic piece (226) is arranged at the opening of the sliding groove (225).

4. The full-automatic bag opening and sealing processing technology of claim 1, wherein a one-way exhaust nozzle (3221) is arranged on one side of the air bag (322) facing away from the pushing assembly (33).

5. The full-automatic bag opening and sealing processing technology of claim 1, wherein in the fifth step, the locking unit (317) comprises:

an optical axis (3171), the optical axis (3171) being disposed perpendicularly on the sidewall (3150);

the sliding block (3172) is arranged on the optical axis (3171) in a sliding mode, and the contact block (325) is mounted on the sliding block (3172);

the spring piece (3173), the said spring piece (3173) is set up on the said optical axis (3171), it sets up between said slide block (3172) and said sidewall (3150); and

the bolt (3174) is vertically arranged on the sliding block (3172) and penetrates through the side wall (3150) to be inserted into the limiting hole (3120) in the mounting plate (316) to lock the second rotating bracket (315) and the mounting plate (316).

6. The full-automatic bag opening and sealing processing technology of claim 1, wherein in the sixth step, the second rotating bracket (315) is arranged in a U shape, the symmetrically arranged side walls (3150) are provided with slide rails (3151), and the side walls (3150) are provided with limit blocks (3152), the limiting blocks (3152) are symmetrically arranged along the length direction of the sliding rail (3151), the limiting blocks (3152) are positioned at one end of the opening of the second rotating bracket (315), the mounting plate (316) is arranged on the side wall (3150) in a sliding way along the sliding rail (3151), the mounting plate (316) is provided with a supporting foot (3161) correspondingly matched with the sliding rail (3151), the end part of the supporting foot (3161) is provided with a limiting strip (3162) which is in interference fit with the limiting block (3152) for limiting, and the limiting strip (3162) is perpendicular to the supporting foot (3161).

7. The full-automatic bag opening and sealing processing technology of claim 1, wherein in the seventh step, the fixing box (41) further comprises:

the box body (411) is fixedly arranged on the conveying belt (40) of the conveying line (4), an opening is formed in the upper portion of the box body (411), and the magnetic stone (415) is arranged on the side wall of the box body (411) corresponding to the positioning plate (414);

the rotating shafts (412), the rotating shafts (412) are symmetrically and freely rotatably arranged on two sides of the opening of the box body (411);

the hinged fork (413) is fixedly connected with the rotating shaft (412), symmetrically arranged at two axial ends of the rotating shaft (412), provided with a U-shaped hinged part (4131) at the swinging end part, and the positioning plate (414) is hinged on the hinged part (4131) and swings along with the rotation of the rotating shaft (412);

the first gear (416) is arranged at two axial ends of the rotating shaft (412) and is half-toothed, and a first rack (417) which is correspondingly meshed with the first gear (416) is arranged on the mounting plate (316); and

the second gear (418) and the first gear (416) are arranged side by side in a one-to-one correspondence mode, the second gear (418) is half-tooth arranged, and teeth on the second gear and teeth on the first gear (416) are matched with each other to form a whole circle of teeth.

8. The full-automatic bag opening and sealing processing technology of claim 7, wherein in the ninth step, the sealing mechanism (6) comprises:

a mounting frame (61);

the lifting cylinder (62) is vertically installed at the top of the installation rack (61) and is used for vertically pushing downwards in a reciprocating mode;

the mounting frame (63) is mounted at the pushing end of the lifting cylinder (62) and is arranged in a U shape;

the first side pushing cylinders (64) are symmetrically arranged on the mounting frame (63) and push in a reciprocating manner along the conveying direction of the conveying line (4);

the second rack (65), the second rack (65) is installed on the pushing end of the first side pushing cylinder (64), and is meshed with the corresponding second gear (418), so that the positioning plate (414) is driven to overturn, and the packaging bag (101) in the fixed box (41) is released;

the second side pushing air cylinders (66) are symmetrically arranged on the mounting frame (63), are positioned below the first side pushing air cylinder (64), and push the conveying line (4) in a reciprocating manner along the conveying direction; and

seal hot plate (67), seal hot plate (67) install in the propelling movement of second side push cylinder (66) is served, and it is right in fixed case (41) the opening of wrapping bag (101) carries out heat-seal treatment.

9. The full-automatic bag opening and sealing processing technology of claim 1, wherein in the eighth step, when the inner bags (101) in the fixed box (41) are filled, the bag (101) in the fixed box (41) right below the sealing mechanism (6) in the ninth step is synchronously heated and sealed.