CN115072063B

CN115072063B - Packaging box laminating machine

Info

Publication number: CN115072063B
Application number: CN202210719049.7A
Authority: CN
Inventors: 张完郎; 高清都; 黄运忠
Original assignee: Xiamen Chengfei Automation Equipment Co ltd
Current assignee: Xiamen Chengfei Automation Equipment Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2023-12-08
Anticipated expiration: 2042-06-23
Also published as: CN115072063A

Abstract

The invention provides a packaging box laminating machine which comprises a packaging box conveying mechanism, a packaging film sealing and cutting mechanism, a packaging film drawing mechanism, a packaging film opening mechanism, a packaging box bagging mechanism and a packaging film corner cutting mechanism which are sequentially arranged. According to the invention, four groups of packaging film corner cutting mechanisms are arranged, so that peripheral corner trim materials of an external packaging bag of the packaging box can be cut and sealed, and the problems of excessive peripheral trim materials, complicated manual cutting, irregular packaging appearance and poor quality in the process of packaging products by using the traditional thermoplastic packaging film are solved.

Description

Packaging box laminating machine

Technical Field

The invention relates to a packaging box laminating machine.

Background

The existing packaging box is generally covered with a film to protect the packaging box and the products inside the packaging box. Traditional packing carton tectorial membrane adopts the wrapping bag that the size just is fit for, and when the packing carton goes into the bag, through the folding receipts of leftover bits and pieces, realize that the wrapping bag hugs closely packing carton and closes up, this packaging method is exquisite, but this packaging tectorial membrane mode needs equipment to realize complicated action, and equipment cost is high. At present, thermoplastic film packaging is also adopted on the market, after the thermoplastic film covers the packaging box, the thermoplastic film can shrink and cling to the packaging box through baking or hot air treatment, but the leftover materials of the packaging mode are often shrunk into a group, the quality of the processing mode is lower, and the attractiveness and sales of the commodity are affected, so that the conventional thermoplastic film packaging equipment needs to be further improved, the processing quality of the leftover materials of the packaging bag is improved, and meanwhile, the complex action adopted when the traditional packaging bag packaging equipment folds and closes the leftover materials of the packaging bag is avoided.

Disclosure of Invention

The invention aims to solve the technical problems, and provides a packaging box laminating machine which can be used for processing leftover materials of packaging bags of packaging boxes, improving packaging quality and reducing labor cost.

The utility model provides a packing carton laminating machine, includes packing carton conveying mechanism and the packaging film conveying mechanism, packaging film seals cutting mechanism, packaging film drawing mechanism, packaging film opening mechanism, packing carton goes into bagging-off mechanism, packaging film corner cutting mechanism that set gradually, is used for carrying packing carton, packaging film material loading and transportation in proper order, the sealing and the cutting of packaging film lateral part, pulls out the packaging film and prepare for loading, tear the packaging film opening, push the opening of packing carton into the packing carton, cut out and seal the banding to packaging film leftover bits. The packaging box bagging mechanism, the packaging film sealing and cutting mechanism and the packaging film opening mechanism are arranged close to the packaging box conveying mechanism, so that the packaging box can be smoothly pushed into the packaging film and packaged.

The packing box conveying mechanism comprises a conveying belt and is used for conveying packing boxes.

The corner cutting mechanisms of the packaging film are four groups and are positioned at four points which are at the same level, and square corner processing stations are formed by surrounding. The packaging film corner cutting mechanism comprises a mounting seat, a baffle driving piece, a baffle, a pressing driving piece, a pressing plate, a cutting driving piece and a cutting knife.

The baffle driving piece is arranged on the mounting seat and drives the baffle to reciprocate along the conveying direction of the conveying belt at a position close to the conveying belt, so that leftover materials of the packaging bag can be contacted.

The pressing driving piece is arranged on the mounting seat and drives the pressing plate to prop against or keep away from one side of the baffle plate, which is far away from the conveying belt, so that the pressing driving piece can clamp the leftover materials of the packaging bag together with the baffle plate.

The cutting driving piece is arranged on the mounting seat and drives the cutting knife to prop against or keep away from one side of the baffle, which is far away from the conveying belt, and meanwhile, the cutting knife is a heat sealing knife connected with a power supply, so that the clamped leftover materials of the packaging bag can be cut and heat sealed.

According to the invention, four groups of packaging film corner cutting mechanisms are arranged, so that peripheral corner trim materials of an external packaging bag of the packaging box can be cut and sealed, and the problems of excessive peripheral trim materials, complicated manual cutting, irregular packaging appearance and poor quality in the process of packaging products by using the traditional thermoplastic packaging film are solved.

Preferably, in order to improve the flexibility of conveying the pressing driving member, the pressing driving member includes a moving seat, a first pressing cylinder, and a second pressing cylinder. The movable seat is arranged on the mounting seat through a track perpendicular to the conveying direction of the conveying belt and is connected and driven by the first pressing cylinder, so that the whole pressing plate can be driven to advance and retreat towards the baffle. The pressing plate is connected and driven through the second pressing cylinder on the movable seat through the track mounting seat parallel to the conveying direction of the conveying belt, so that the pressing plate can be driven to adjust the position along the direction parallel to the baffle plate, and the pressing plate can be better pressed to the leftover materials of the packaging bags.

Preferably, in order to improve the adjustment flexibility of the corner cutting mechanism of the packaging film, the corner cutting mechanism of the packaging film further comprises an adjustment driving piece. The adjustment driving member includes a longitudinal adjustment plate, a longitudinal adjustment driving member, and a transverse adjustment driving member. The longitudinal adjustment driving piece is arranged on the frame and connected with the frame to drive the longitudinal adjustment plate to be close to or far away from the conveying belt, so that the distance between the corner cutting mechanism of the packaging film and the conveying belt is adjusted. The transverse adjusting driving piece is arranged on the longitudinal adjusting plate and connected with the longitudinal adjusting plate to drive the mounting seat to reciprocate along the conveying direction of the conveying belt, so that the distance between the corner cutting mechanism of the packaging film and the packaging box is adjusted.

Preferably, the package conveying mechanism comprises a width adjustment base, a width adjustment driving piece and a baffle plate. One side of the conveying belt is provided with a side feeding station perpendicular to the conveying direction, namely, the packing box conveying mechanism adopts an L-shaped arrangement mode, so that the problem of large occupied area of equipment caused by a straight-line distributed type is avoided. The width adjustment base is slidably arranged on the frame and positioned on the other side of the conveying belt; the width adjustment driving piece is connected to drive the width adjustment base to be far away from or close to the conveying belt, and the baffle is arranged on the conveying belt and extends to the conveying belt to be opposite to the side feeding station. The two longitudinal adjusting plates are symmetrically arranged on two sides of the conveying belt, and one longitudinal adjusting plate is arranged on the width adjusting base. The longitudinal adjustment driving piece and the transverse adjustment driving piece adopt driving structures that motors drive screw nuts. The two packaging film corner cutting mechanisms positioned on the same side of the conveying belt share the same longitudinal adjusting plate and the longitudinal adjusting driving piece, so that the mechanism is further simplified.

Packaging film conveying mechanism, packaging film sealing and cutting mechanism, packaging film pulling mechanism, packaging film opening mechanism, packaging box bagging mechanism and packaging film corner cutting mechanism

Preferably, the packaging film conveying mechanism is arranged at the bottom of the frame and is positioned below the packaging film sealing and cutting mechanism, so that the whole occupied space of the equipment is reduced, and the packaging film conveying mechanism comprises a pair of bearing rotating shafts, leaning rotating shafts, punching rotating shafts, roller shafts and conveying shafts. The two bearing rotating shafts are arranged at the same height and at intervals, are synchronously driven to rotate by the same motor and are used for placing and bearing the packaging film roll, and meanwhile, the packaging film roll can be driven to rotate. The mounting height of the leaning rotating shaft is higher than that of the bearing rotating shaft, and the leaning rotating shaft is positioned on one side, close to the pulling-out of the packaging film, of the bearing rotating shaft, so that the packaging film is prevented from rolling out of the two bearing rotating shafts from the pulled-out side. The punching rotating shaft and the roller shaft are close to each other and are provided with a plurality of annular grooves which are distributed at intervals, the roller shaft is provided with rollers corresponding to the annular grooves, needles extending into the annular grooves are distributed on the periphery of the rollers, packaging films passing between the punching rotating shaft and the roller shaft are punched with holes, and bubbles in the later packaging films are prevented. At least one and at least one layer of said conveying shafts is arranged along the output path of the packaging film.

Preferably, the packaging film sealing and cutting mechanism comprises a cutting base, a pressing fixing seat, a pressing movable seat, a pressing cylinder, a pair of pressing plates and a sealing and cutting-off knife. The compressing fixing seat is arranged on the frame and positioned at the top of the cutting base. The compressing movable seat is movably arranged below the compressing fixed seat through a guide rod and a guide hole. The compressing cylinder is arranged on the compressing fixed seat and connected with the compressing fixed seat to drive the compressing movable seat to reciprocate up and down. The bottoms of the two pressing plates are parallel and point to the cutting base, the tops of the two pressing plates are connected through a connecting plate and extend upwards through a guide rod, the two pressing plates are movably installed up and down to the guide holes of the pressing fixing base, and the passing packaging film can be pressed. The sealing and cutting knife is arranged between the two pressing plates, the top of the sealing and cutting knife is provided with a guide rod which extends upwards and penetrates through the connecting plate and is movably installed up and down with the guide hole on the pressing fixing seat, and packaging films can be cut off and heat-sealed from the position between the two pressing plates. The guide rod between the pressing plate and the pressing fixing seat is provided with a pre-tightening spring, and upward restoring force is provided for the pressing plate and the sealing cutting knife. The bottom of the sealing cutting knife is higher than or equal to the bottom of the pressing plate, namely, the packaging film is firstly pressed and cut off and heat-sealed.

Preferably, the packaging film pulling mechanism comprises a stopping plate, a film pulling mounting plate, a film pulling driving piece and a film pulling air claw. The stop board level sets up tailors between base and the pressure strip, and be located near the side of pressure strip of packaging film input one side can let the packaging film that is cut off park, and simultaneously, the packaging film adopts the packaging film of fifty percent discount mode, and the opening orientation stop the board, place the packaging film and roll up the back, pull out the packaging film, tear the packaging film of fifty percent discount, let place the board and pass from upper and lower two-layer packaging film between, be convenient for follow-up packaging film opening. The film pulling mounting plate is slidably mounted on one side of the output end of the packaging film sealing and cutting mechanism through a rail parallel to the output direction of the packaging film and is connected and driven by the film pulling driving piece. The film pulling air claws are arranged on the film pulling mounting plate and face the backing plate. The stopping plate is provided with a notch corresponding to the film pulling air claw, and the film pulling air claw stretches into the notch and grabs a suspended part on the end part of the packaging film.

Preferably, the packaging film opening mechanism is arranged along the side edge of the packaging film pulling mechanism and is parallel to the conveying direction of the conveying belt, so that the opening of the side edge of the packaging film can be faced, and the packaging film opening mechanism comprises a strip-shaped seat, an approaching driving piece, an approaching base, a transverse driving piece, two lead screws, four opening and closing seats and four opening and closing pieces.

The strip-shaped seat is perpendicular to the film pulling mounting plate and movably mounted on the frame through a track parallel to the film pulling mounting plate, and is connected with and driven by the approaching driving piece to approach or depart from the film pulling mounting plate. The approaching base is slidably mounted on the strip-shaped base through a track parallel to the moving track of the film drawing mounting plate, and is connected and driven by the transverse driving piece to reciprocate along the moving track of the film drawing mounting plate, so that the stretching piece can be moved to one side of the packaging film pulled out by the packaging film drawing mechanism. The two lead screws are arranged on the approaching base in parallel at intervals and horizontally and rotatably. The screw rods are synchronously driven to rotate through the motor, the synchronous wheels and the synchronous belt, threads at two ends of the screw rods are opposite, and the two ends of the screw rods are respectively connected through a gear to drive the opening and closing seat. The bottom two opening and closing seats are respectively provided with two opening and closing pieces. The two opening and closing seats at the top are respectively provided with an opening and closing lifting seat through vertical rails. The opening and closing lifting seat is connected with the lifting and closing driving piece arranged on the opening and closing seat to drive the lifting and closing driving piece to reciprocate up and down. The other two opening pieces are respectively arranged on the two opening and closing lifting seats and are close to or separated from the two opening pieces at the bottom, so that the four opening pieces are inserted into the openings of the packaging bags in pairs, and the openings of the packaging bags are enlarged by separation.

The spreading pieces comprise L-shaped insertion blocks, clamping blocks and clamping cylinders. The L-shaped insert block includes a flat insert end that is disposed horizontally and vertically directed to an opening through which the transversely-translating drivers can be inserted into the package. The L-shaped inserting blocks of the two expanding pieces positioned on the same side are oppositely arranged, the corresponding two clamping cylinders are respectively arranged on the opposite sides of the two L-shaped inserting blocks and are respectively connected with and drive the two clamping blocks to prop against or be far away from the opposite sides of the two L-shaped inserting blocks. The opening and closing driving piece is connected with the opening and closing piece which drives the top or bottom opening and closing piece to reciprocate up and down, so that the film of the opening of the packaging bag can be pinched. The air blowing piece is arranged among the four stretching pieces, and is provided with an air inlet hole and an air blowing hole which is horizontally arranged and faces to the transverse translation driving piece. One end of the air inlet is connected with an external air source, and the other end of the air inlet is connected with a blowing hole, so that the opening of the packaging bag can be blown to form a small opening, and the L-shaped insertion block can be conveniently inserted.

A packaging film sealing and cutting mechanism is further arranged between the packaging film opening mechanism and the conveying belt, so that the packaging bag opening can be heat-sealed after the packaging box enters the packaging bag opening.

Preferably, the package box conveying mechanism further comprises a feeding conveyor belt, a pushing assembly and a discharging assembly. The pushing assembly and the discharging assembly are arranged on two sides of the discharging end of the feeding conveyor belt, so that the packaging box can be pushed onto the discharging assembly from the feeding conveyor belt through the pushing assembly. The feeding conveyor belt and the conveying belt are arranged on two sides of the packaging film opening mechanism, so that a packaging box on the discharging assembly can be pushed into a packaging bag which is already opened in the packaging film opening mechanism through the packaging box bagging mechanism.

The discharging assembly comprises a discharging mounting seat, an L-shaped rod, a sliding block and a discharging opening and closing driving piece. The discharging installation seat is installed close to the feeding conveyor belt. The L-shaped rods and the sliding blocks are both two, the L-shaped rods are respectively and slidably arranged on the discharging installation seat through the sliding blocks and the rails parallel to the conveying direction of the feeding conveyor belt, and the L-shaped rods are oppositely arranged at intervals to form sliding grooves. The discharging opening and closing driving piece is arranged on the discharging installation seat and connected with the discharging installation seat to drive the two L-shaped rods to approach or separate from each other, so that the distance between the two L-shaped rods can be adjusted according to the size of the packaging box, and the width of the sliding groove can be adjusted. The discharging assembly further comprises a discharging lifting driving piece, and the discharging lifting driving piece is connected with and drives the discharging installation seat to reciprocate up and down, so that the discharging installation seat and the L-shaped rod on the upper portion of the discharging installation seat can be abutted to the opening of the subsequent packaging bag.

The discharging lifting driving piece is arranged at the bottom of the mounting seat and comprises a first lifting seat, a second lifting seat, a transverse guide rod, a first guide rod, a second guide rod, a motor, a gear and a rack. The first lifting seat and the second lifting seat are arranged below the discharging installation seat, and the number of the second lifting seats is two, and the two lifting seats are arranged on two sides of the first lifting seat. The at least two transverse guide rods are parallel to the first track and penetrate through the first lifting seat and the second lifting seat, so that the first lifting seat and the second lifting seat are linked in the vertical direction. The top of the first guide rod is fixed at the bottom of the discharging installation seat and extends downwards to penetrate through the first lifting seat. The at least two second guide rods are respectively fixed on the two second lifting seats and extend upwards to penetrate through the two sliding blocks to be respectively connected with the two L-shaped rods. The rack is vertically arranged on the first lifting seat, and the motor is arranged on the frame and drives the rack, the first lifting seat, the second lifting seat and the two L-shaped rods to reciprocate up and down through gear connection. The pushing assembly comprises a pushing driving piece and a pushing rod. The pushing rod is arranged in parallel with the feeding direction of the feeding conveyor belt, and is driven by the pushing driving piece to reciprocate on the feeding conveyor belt close to or far away from the discharging assembly.

Preferably, the packing box bagging mechanism comprises a supporting frame, a transverse track, a translation plate, a translation driving piece, a vertical track, a limiting piece, a lifting plate, a longitudinal track, a moving block, an opening and closing driving piece and a pushing plate.

The translation plate is slidably mounted on the support frame through a transverse track. The translation driving piece is arranged on the supporting frame and connected with the translation driving piece to drive the translation plate to be close to or far away from the packaging film opening mechanism, so that the pushing plate is driven to move forwards and backwards, and the packaging box placed on the discharging assembly is pushed to enter a packaging bag opening in the packaging film opening mechanism.

The lifting plate is slidably mounted on the translation plate through a vertical rail. The limiting piece is arranged on the translation plate and limits or adjusts the installation height of the lifting plate.

The two moving blocks are slidably mounted on the lifting plate through longitudinal rails. The opening and closing driving piece is arranged on the lifting plate and connected with the lifting plate to drive the two moving blocks to approach or separate from each other so as to adapt to packaging boxes with different sizes.

The two pushing plates are respectively arranged on the two moving blocks, are positioned on the same plane and are both directed at the packaging film opening mechanism.

From the above description of the invention, the invention has the following advantages:

1. by arranging four groups of packaging film corner cutting mechanisms, peripheral leftover materials of an external packaging bag of the packaging box can be cut and sealed, and the problems that when the existing thermoplastic packaging film is used for packaging products, the peripheral leftover materials are too much, the manual cutting is complicated, the packaging appearance is not neat and the quality is poor are solved;

2. by arranging the packaging film conveying mechanism, the packaging film pulling mechanism, the packaging film sealing cutting mechanism, the packaging film opening mechanism, the packaging box bagging mechanism, the packaging film corner cutting mechanism, the packaging film conveying mechanism and the packaging box bagging mechanism, the packaging film roll can be fully automatically manufactured into packaging bags and packaged into packaging boxes, and finally corners of the packaging bags are treated, so that the overall working efficiency is improved;

3. by arranging flexible driving parts on each mechanism, the working parts of each mechanism can be adjusted according to the size of the packaging box, so that the device can adapt to packaging boxes with various sizes and corresponding packaging bags;

4. according to the width of the packing box, the distance between the baffle and the side feeding station can be adjusted, so that the size of the space for accommodating the packing box on the conveying belt is adjusted to be matched with the width of the packing box, the packing box is prevented from being skewed in the conveying process, and the processing effect of corners of the packing bag is further affected.

5. According to the invention, the distance between the corner cutting mechanism of the packaging film and the conveying belt is adjustable, and the adjustment of the corner cutting mechanism is linked with the adjustment of the space for accommodating the packaging box on the conveying belt, so that the corner cutting mechanism can be adjusted in accordance with the width of the packaging box, thereby avoiding different adjustment of different parts, improving the packaging effect of the packaging bag of the packaging box, reducing the arrangement of a driving mechanism, and simplifying the mechanism;

6. the equipment provided by the invention can be used for coating the packaging boxes with different sizes, when the equipment is used, the size of the accommodating space of the packaging boxes on the conveying belt, the film pulling length of the packaging film pulling mechanism, the opening and opening size of the packaging film opening mechanism, the opening and closing degree of the pushing plate when the packaging boxes are fed into the bag mechanism for pushing materials and the distance between the packaging film corner cutting mechanism and the conveying belt can be adjusted simultaneously according to the input of the sizes of the packaging boxes, so that the large error caused by manual adjustment is reduced, the coating quality of the packaging boxes is improved, and meanwhile, the labor intensity of operators is reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention.

Wherein:

figure 1 is an isometric view of a package laminator;

figure 2 is a second isometric view of a package laminator;

figure 3 is an isometric view of a package laminator;

figure 4 is an isometric view of a package laminator;

fig. 5 is an isometric view of a package laminator;

figure 6 is an isometric view of a package laminator; (only part is shown)

Figure 7 is an isometric view of a package laminator; (only part is shown)

Figure 8 is an isometric view eight of a package laminator; (only part is shown)

Figure 9 is an isometric view eight of a package laminator; (only part is shown)

The identifiers in fig. 1 to 9 are respectively: the packaging box conveying mechanism 1, the conveying belt 11, the feeding conveying belt 12, the discharging mounting seat 13, the L-shaped rod 14, the discharging opening and closing driving piece 15, the discharging lifting driving piece 16, the first lifting seat 161, the second lifting seat 162, the width adjusting base 17, the baffle 18, the packaging film conveying mechanism 2, the bearing rotating shaft 21, the leaning rotating shaft 22, the punching rotating shaft 23, the roller shaft 24, the packaging film sealing and cutting mechanism 3, the cutting base 31, the compressing fixed seat 32, the compressing movable seat 33, the pair of compressing plates 34, the sealing and cutting knife 35, the packaging film pulling mechanism 4 package, the stopping plate 41, the film pulling mounting plate 42, the film pulling air claw 43, the packaging film opening mechanism 5, the strip seat 51, the approaching base 52, the opening and closing seat 53, the L-shaped insert 54, the clamping block 55, the blowing piece 56, the packaging box bagging mechanism 6, the supporting frame 61, the translation plate 62, the lifting plate 63, the pushing material 64, the packaging film corner cutting mechanism 7, the mounting seat 71, the baffle 72, the pressing plate 73, the cutting knife 74, the moving seat 75, the longitudinal adjusting plate 76, the packaging film roll 8 and the packaging box 9.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1 to 9, a packaging box laminating machine comprises a packaging box conveying mechanism 1, a packaging film conveying mechanism 2, a packaging film sealing and cutting mechanism 3, a packaging film drawing mechanism 4, a packaging film opening mechanism 5, a packaging box bagging mechanism 6 and a packaging film corner cutting mechanism 7 which are sequentially arranged, and the packaging box laminating machine is sequentially used for conveying packaging boxes, packaging film feeding and conveying, sealing and cutting of the side parts of the packaging films, pulling out the packaging films to prepare for loading, tearing the packaging film opening, pushing the packaging boxes into the opening of the packaging boxes, and cutting and sealing edges of the packaging film corner leftovers. The packing box bagging mechanism 6, the packing film sealing and cutting mechanism 3 and the packing film opening mechanism 5 are arranged close to the packing box conveying mechanism 1, so that the packing box can be smoothly pushed into the packing film and packaged.

The package box conveying mechanism 1 comprises a conveying belt 11 for conveying package boxes, in this embodiment, the conveying belt 11 adopts a pair of belts which are distributed in parallel at intervals, and a plurality of supporting rollers are arranged in the middle of the conveying belt.

In one embodiment, the package transport mechanism 1 further includes a feed conveyor 12, a push 64 assembly, and a discharge assembly. The push 64 assembly and the discharge assembly are mounted on both sides of the discharge end of the feed conveyor 12 so that the packages can be pushed from the feed conveyor 12 onto the discharge assembly by the push 64 assembly. The feeding conveyor belt 12 and the conveying belt 11 are arranged on two sides of the packaging film opening mechanism 5, so that the packaging box on the discharging assembly can be pushed into the packaging bag which is already opened in the packaging film opening mechanism 5 through the packaging box bagging mechanism 6.

Specifically, the discharging assembly comprises a discharging mounting seat 13, an L-shaped rod 14, a sliding block and a discharging opening and closing driving piece 15. The discharge mounting seat 13 is mounted close to the feed conveyor 12. The two L-shaped rods 14 and the two sliding blocks are respectively arranged on the discharging installation seat 13 in a sliding manner through the sliding blocks and the rails parallel to the conveying direction of the feeding conveyor belt 12, and the two L-shaped rods 14 are oppositely arranged at intervals to form a sliding groove. The discharging opening and closing driving piece 15 is installed on the discharging installation seat 13 and connected to drive the two L-shaped rods 14 to approach or separate from each other, so that the distance between the two L-shaped rods 14 can be adjusted according to the size of the packaging box, and the width of the sliding groove can be adjusted. The discharging assembly further comprises a discharging lifting driving piece 16, and the discharging lifting driving piece 16 is connected with and drives the discharging installation seat 13 to reciprocate up and down, so that the discharging installation seat 13 and the L-shaped rod 14 on the upper portion of the discharging installation seat can be abutted against a rear packaging bag opening.

The discharging lifting driving part 16 is arranged at the bottom of the mounting seat and comprises a first lifting seat 161, a second lifting seat 162, a transverse guide rod, a first guide rod, a second guide rod, a motor, a gear and a rack. The first lifting seat 161 and the second lifting seat 162 are disposed below the discharging mounting seat 13, and two second lifting seats 162 are disposed on two sides of the first lifting seat 161. At least two transverse guide rods are parallel to the first track and penetrate through the first lifting seat 161 and the second lifting seat 162, so that the first lifting seat 161 and the second lifting seat 162 are linked in the vertical direction. The top of the first guide rod is fixed at the bottom of the discharging installation seat 13 and extends downwards to penetrate through the first lifting seat 161. The at least two second guide rods are respectively fixed on the two second lifting seats 162 and extend upwards to penetrate through the two sliding blocks to be respectively connected with the two L-shaped rods 14. The rack is vertically installed on the first lifting seat 161, and the motor is installed on the frame and drives the rack, the first lifting seat 161, the second lifting seat 162 and the two L-shaped rods 14 to reciprocate up and down through gear connection. The push 64 assembly includes a push 64 drive and a push 64 lever. The pushing rod 64 is installed parallel to the feeding direction of the feeding conveyor belt 12, and is driven by the pushing member 64 to reciprocate on the feeding conveyor belt 12 near to or far from the discharging assembly.

The packaging film corner cutting mechanisms 7 are four groups and are positioned at four points which are at the same level to form square corner processing stations. The packaging film corner cutting mechanism 7 comprises a mounting seat 71, a baffle driving piece, a baffle 72, a pressing driving piece, a pressing plate 73, a cutting driving piece and a cutting knife 74.

The baffle driving member is mounted on the mounting seat 71 and drives the baffle 72 to reciprocate along the conveying direction of the conveying belt 11 at a position close to the conveying belt 11, so that the working surface of the baffle 72 is level with the side surface of the packing box.

The pressing driving member is mounted on the mounting seat and drives the pressing plate 73 to abut against or be away from one side of the baffle 72 away from the conveyor belt 11, so that the edge and the residue of the packaging bag can be clamped together with the baffle 72.

The cutting driving piece is installed on the installation seat and drives the cutting knife 74 to prop against or keep away from one side of the baffle 72, which is far away from the conveyor belt 11, and meanwhile, the cutting knife 74 is a heat sealing knife connected with a power supply, so that the cutting and heat sealing of the clamped packaging bag leftover materials can be performed. In one embodiment, to increase the flexibility of delivering the pressing drive, the pressing drive includes a moving seat 75, a first pressing cylinder, and a second pressing cylinder. The moving seat 75 is mounted on the mounting seat through a track perpendicular to the conveying direction of the conveying belt 11, and is connected and driven by the first pressing cylinder, so that the whole pressing plate 73 can be driven to advance and retreat towards the baffle plate 72, and the moving pressing plate 73 is close to a side piece of the packing box, is coplanar with the working surface area of the baffle plate 72 and is staggered. The pressing plate 73 is connected to the moving seat 75 through a track mounting seat parallel to the conveying direction of the conveying belt 11 and driven by the second pressing cylinder, so that the pressing plate 73 can be driven to adjust the position along the direction parallel to the baffle 72, walk along the side surface of the packaging box and approach the working surface of the baffle 72, and the leftover materials of the packaging bag are scraped and pressed on the baffle 72.

According to the invention, four groups of packaging film corner cutting mechanisms 7 are arranged, so that peripheral corner trim materials of an external packaging bag of a packaging box can be cut and sealed, and the problems of excessive peripheral trim materials, complicated manual cutting, irregular packaging appearance and poor quality in the process of packaging products by using the traditional thermoplastic packaging film are solved.

In one embodiment, in order to improve the adjustment flexibility of the corner cutting mechanism 7, the corner cutting mechanism 7 further includes an adjustment driving member. The adjustment drive includes a longitudinal adjustment plate 76, a longitudinal adjustment drive, and a lateral adjustment drive. The longitudinal adjustment driving part is arranged on the frame and connected with the longitudinal adjustment plate 76 to drive the longitudinal adjustment plate to be close to or far away from the conveying belt 11, so that the distance between the packaging film corner cutting mechanism 7 and the conveying belt 11 is adjusted. The transverse adjusting driving piece is arranged on the longitudinal adjusting plate 76 and connected with the longitudinal adjusting plate to drive the mounting seat to reciprocate along the conveying direction of the conveying belt 11, so that the distance between the packaging film corner cutting mechanism 7 and the packaging box is adjusted. In this embodiment, the longitudinal adjustment driving member and the transverse adjustment driving member adopt a driving mode that a motor drives a screw nut. Preferably, the package feeding mechanism 1 includes a width adjustment base 17, a width adjustment drive, and a baffle 18. One side of the conveyor belt 11 is provided with a side feeding station perpendicular to the conveying direction, and the width adjusting base 17 is slidably mounted on the frame and is located on the other side of the conveyor belt 11. The width adjustment driving part is connected to drive the width adjustment base 17 to be far away from or close to the conveyor belt 11, and the baffle 18 is mounted on the conveyor belt and extends to the conveyor belt and is opposite to the side feeding station. The two longitudinal adjusting plates 76 are symmetrically arranged at two sides of the conveying belt 11. The longitudinal adjustment driving piece and the transverse adjustment driving piece adopt driving structures that motors drive screw nuts. The two packaging film corner cutting mechanisms 7 positioned on the same side of the conveying belt 11 share the same longitudinal adjusting plate 76 and the longitudinal adjusting driving piece, so that the mechanism is further simplified.

In an embodiment, in order to improve the stability of the processing of the leftover materials of the packaging bag, the cutting mechanism 7 for the corner of the packaging film further comprises a pressing piece arranged at the top of the conveying belt 11, and the pressing piece can move up and down to press or loosen the packaging boxes on the conveying belt 11.

In one embodiment, the packaging film conveying mechanism 2 comprises a pair of supporting rotating shafts 21, a leaning rotating shaft 22, a punching rotating shaft 23, a roller shaft 24 and a conveying shaft. The two bearing rotating shafts 21 are arranged at the same height and at intervals, are synchronously driven to rotate by the same motor and are used for placing and bearing the packaging film roll, and can drive the packaging film roll to rotate. The leaning rotating shaft 22 is higher than the bearing rotating shaft 21 in installation height, and is positioned on one side, close to the pulling out of the packaging film, of the bearing rotating shaft 21, so that the packaging film is prevented from rolling out of the two bearing rotating shafts 21 from the pulled out side. The punching rotating shaft 23 and the roller shaft 24 are installed close to each other, a plurality of annular grooves are formed in the punching rotating shaft 23 at intervals, rollers corresponding to the annular grooves are arranged on the roller shaft 24, needles extending into the annular grooves are distributed on the periphery of the rollers, and packaging films passing through the position between the punching rotating shaft 23 and the roller shaft 24 are punched with holes to prevent bubbles in the later packaging films. At least one and at least one layer of said conveying shafts is arranged along the output path of the packaging film.

In one embodiment, the packaging film seal cutting mechanism 3 comprises a cutting base 31, a pressing fixing seat 32, a pressing movable seat 33, a pressing cylinder, a pair of pressing plates 34 and a seal cutting knife 35. The pressing fixing seat 32 is installed on the frame and located at the top of the cutting base 31. The compressing movable seat 33 is movably arranged below the compressing fixed seat 32 through a guide rod and a guide hole. The compressing cylinder is mounted on the compressing fixed base 32 and connected to drive the compressing movable base 33 to reciprocate up and down. The bottoms of the two pressing plates 34 are parallel and point to the cutting base 31, the tops of the two pressing plates are connected through a connecting plate and extend upwards through a guide rod, and the two pressing plates are movably installed up and down to be in guide holes of the pressing fixing base 32, so that passing packaging films can be pressed. The seal cutting knife 35 is disposed between the two pressing plates 34, and a guide rod extending upward and penetrating through the connecting plate and movably mounted up and down with the guide hole on the pressing fixing seat 32 is disposed at the top of the seal cutting knife, so that the packaging film can be cut off and heat-sealed from the position between the two pressing plates 34. The guide rod between the pressing plate 34 and the pressing fixing seat 32 is provided with a pre-tightening spring, and an upward restoring force is provided for the pressing plate 34 and the sealing and cutting knife 35. The bottom of the seal-cutting knife 35 is higher than or equal to the bottom of the compacting plate 34, i.e. the packaging film is first pressed for cutting and heat-sealing.

In one embodiment, the packaging film pulling mechanism 4 comprises a stopping plate 41, a film pulling mounting plate 42, a film pulling driving piece and a film pulling air claw 43. The dock board 41 level sets up tailors between base 31 and the clamp plate 34, and be located near the side of clamp plate 34 of packaging film input side can let the packaging film of cutting off park, and simultaneously, the packaging film adopts the packaging film of fifty percent discount mode, and the opening orientation dock board 41, place the packaging film and roll up the back, pull out the packaging film, tear the packaging film of fifty percent discount, let place board 41 from upper and lower two-layer packaging film between pass, be convenient for follow-up packaging film opening. The film pulling mounting plate 42 is slidably mounted on one side of the output end of the packaging film sealing and cutting mechanism 3 through a rail parallel to the output direction of the packaging film, and is connected and driven by the film pulling driving piece. The film pulling air claws 43 are arranged on the film pulling mounting plate 42 and face the stop plate 41. The stopping plate 41 is provided with a notch corresponding to the film pulling air claw 43, and the film pulling air claw 43 stretches into the notch and grabs a suspended part on the end part of the packaging film.

In one embodiment, the package film opening mechanism 5 is disposed along the side edge of the package film pulling mechanism 4 and parallel to the conveying direction of the conveying belt 11, so as to face the opening of the side edge of the package film, and includes a strip-shaped seat 51, an approaching driving member, an approaching base 52, a transverse driving member, two screw rods, four opening and closing seats 53 and four opening and closing members.

The strip-shaped seat 51 is perpendicular to the film drawing mounting plate 42, movably mounted on the frame through a track parallel to the film drawing mounting plate 42, and connected through the approaching driving member to drive the film drawing mounting plate 42 to approach or be far away from the film drawing mounting plate 42. The approaching base 52 is slidably mounted on the strip-shaped seat 51 through a track parallel to the moving track of the film drawing mounting plate 42, and is connected and driven by the transverse driving piece to reciprocate along the moving track of the film drawing mounting plate 42, so that the opening piece can be moved to one side of the packaging film drawn by the packaging film drawing mechanism 4. The two lead screws are mounted on the approaching base 52 in parallel and spaced apart and horizontally rotated. The screws are synchronously driven to rotate by a motor, a synchronous wheel and a synchronous belt, and threads at two ends of the screws are opposite and drive the opening and closing seat 53 through a gear connection respectively. Two of the opening/closing seats 53 are respectively installed at the bottom. The top two opening and closing seats 53 are respectively provided with an opening and closing lifting seat through vertical tracks. The opening and closing lifting seat is connected by a lifting opening and closing driving piece arranged on the opening and closing seat 53 to drive the opening and closing lifting seat to reciprocate up and down. The other two opening pieces are respectively arranged on the two opening and closing lifting seats and are close to or separated from the two opening pieces at the bottom, so that the four opening pieces are inserted into the openings of the packaging bags in pairs, and the openings of the packaging bags are enlarged by separation.

Preferably, the spreader members each include an L-shaped insert block 54, a clamp block 55, and a clamp cylinder. The L-shaped insert block 54 includes a flat insertion end that is horizontally disposed and vertically oriented transverse translation drivers that can be inserted into the opening of the package. The two L-shaped insertion blocks 54 of the two expanding members located on the same side are oppositely arranged, the corresponding two clamping cylinders are respectively arranged on the opposite sides of the two L-shaped insertion blocks 54, and are respectively connected to drive the two clamping blocks 55 to prop against or be far away from the opposite sides of the two L-shaped insertion blocks 54. The opening and closing driving piece is connected with the opening and closing piece which drives the top or bottom opening and closing piece to reciprocate up and down, so that the film of the opening of the packaging bag can be pinched. The air blower 56 is provided with an air inlet hole and an air outlet hole which is horizontally arranged and faces the transverse translation driving piece. One end of the air inlet is connected with an external air source, and the other end of the air inlet is connected with a blowing hole, so that the opening of the packaging bag can be blown to a small opening, and the L-shaped insertion block 54 can be conveniently inserted.

A packaging film sealing and cutting mechanism 3 is further arranged between the packaging film opening mechanism 5 and the conveying belt 11, so that the packaging bag opening can be heat-sealed after the packaging box enters the packaging bag opening.

In an embodiment, the packing box bagging mechanism 6 includes a supporting frame 61, a transverse rail, a translation plate 62, a translation driving member, a vertical rail, a limiting member, a lifting plate 63, a longitudinal rail, a moving block, an opening and closing driving member and a pushing plate 64.

The translation plate 62 is slidably mounted on the support frame 61 by means of transverse rails. The translation driving piece is installed on the support frame 61 and connected with and drives the translation plate 62 to be close to or far away from the packaging film opening mechanism 5, so that the pushing plate 64 is driven to move forwards and backwards, and the packaging box placed on the discharging assembly is pushed to enter the packaging bag opening in the packaging film opening mechanism 5.

The lifting plate 63 is slidably mounted on the translation plate 62 by a vertical rail. The limiting member is mounted on the translation plate 62 and limits or adjusts the mounting height of the lifting plate 63.

Two moving blocks are slidably mounted on the lifting plate 63 through longitudinal rails. The opening and closing driving piece is installed on the lifting plate 63 and connected to drive the two moving blocks to approach or separate from each other so as to adapt to packaging boxes with different sizes.

The pushing plates 64 are arranged on the two moving blocks respectively, are positioned on the same plane and are both directed to the packaging film opening mechanism 5.

When the equipment provided by the invention is used, a packaging film roll 8 (one side of the pulled packaging film is sealed) is placed on a bearing rotating shaft 21 of a packaging film conveying mechanism 2, the packaging film is pulled out, sequentially passes through a punching rotating shaft 23, a roller shaft 24 and a conveying shaft and is conveyed to a packaging film sealing and cutting mechanism 3, at the moment, a film pulling air claw 43 of the packaging film pulling mechanism 4 moves to the packaging film sealing and cutting mechanism 3, after the end part of the packaging film placed on a backing plate 41 and at the bottom is pulled out by a preset length, the middle part of the pulled packaging film is pressed, heat-sealed and cut by the packaging film sealing and cutting mechanism 3, when the pressing force of the film pulling air claw 43 and the packaging film sealing and cutting mechanism 3 simultaneously grabs two sides of a packaging bag, the packaging film opening mechanism 5 moves to the opening position of the packaging bag, and air is discharged to the opening of the packaging bag through an air blowing piece 56, the opening of the packing bag is slightly opened, the opening part is moved to advance, the packing bag is inserted into the opening of the packing bag and is opened, the packing bag which is grabbed and opened by the packing film opening mechanism 5 is moved to a position between the discharging component and the conveying belt 11, the packing box 9 is placed on the feeding conveying belt 12 for conveying, the packing box on the feeding conveying belt 12 is pushed out by the pushing component 64 and is pushed onto the discharging component, the packing box on the discharging component is pushed into the opened packing bag by the pushing component 64 plate of the packing box feeding mechanism 6, meanwhile, the opening of the packing bag is heat-sealed by the packing film sealing cutting mechanism 3 between the discharging component and the conveying belt 11, the packing bag completely covers the packing box at the moment, the packing bag is conveyed to a corner processing station by the conveying belt 11, the baffle plates 72 of the four groups of packing film corner cutting mechanisms 7 are moved by adjustment to be close to the corner residues of the packing bag, the leftover bits and pieces of the packaging bag are clamped together with the pressing plate 73, and finally the clamped leftover bits and pieces are heat-sealed and cut through the cutting scissors 74, at this time, the size of the packaging bag is close to that of the packaging box, the processed packaging box and packaging bag are taken away by staff or other equipment, and the packaging bag made of thermoplastic film materials can be placed into an oven to shrink and cling to the packaging box.

While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.

Claims

1. The packaging box laminating machine is characterized by comprising a packaging box conveying mechanism, a packaging film sealing and cutting mechanism, a packaging film drawing mechanism, a packaging film opening mechanism, a packaging box bagging mechanism and a packaging film corner cutting mechanism which are sequentially arranged; the packaging box bagging mechanism, the packaging film sealing and cutting mechanism and the packaging film opening mechanism are installed close to the packaging box conveying mechanism;

the packaging box conveying mechanism comprises a conveying belt; the packaging film conveying mechanism is arranged at the bottom of the frame and is positioned below the packaging film sealing and cutting mechanism; the packaging film conveying mechanism comprises a pair of bearing rotating shafts, leaning rotating shafts, a punching rotating shaft, a roller shaft and a conveying shaft; the two bearing rotating shafts are arranged at the same height and at intervals, and are synchronously driven to rotate by the same motor; the leaning rotating shaft is higher than the bearing rotating shaft in mounting height and is positioned on one side of the bearing rotating shaft, which is close to the pulling-out side of the packaging film; the punching rotating shaft and the roller shaft are arranged close to each other, a plurality of annular grooves are formed in the punching rotating shaft at intervals, rollers corresponding to the annular grooves are arranged on the roller shaft, and needles extending into the annular grooves are distributed on the periphery of the rollers; at least one conveying shaft and at least one layer of conveying shafts are arranged along the output path of the packaging film;

The packaging film corner cutting mechanisms are four groups and are positioned at four points to form square corner processing stations; the packaging film corner cutting mechanism comprises a mounting seat, a baffle driving piece, a baffle, a pressing driving piece, a pressing plate, a cutting driving piece and a cutting knife;

the baffle driving piece is arranged on the mounting seat and drives the baffle to reciprocate along the conveying direction of the conveying belt at a position close to the conveying belt;

the pressing driving piece is arranged on the mounting seat and drives the pressing plate to prop against or be far away from one side of the baffle plate, which is far away from the conveying belt; the pressing driving piece comprises a moving seat, a first pressing cylinder and a second pressing cylinder; the movable seat is arranged on the mounting seat through a track perpendicular to the conveying direction of the conveying belt and is driven by the first pressing cylinder; the pressing plate is arranged on the movable seat through a track mounting seat parallel to the conveying direction of the conveying belt and is connected and driven by the second pressing cylinder; the packaging film corner cutting mechanism further comprises an adjusting driving piece; the adjusting driving piece comprises a longitudinal adjusting plate, a longitudinal adjusting driving piece and a transverse adjusting driving piece; the longitudinal adjustment driving piece is arranged on the frame and connected with the frame to drive the longitudinal adjustment plate to be close to or far away from the conveying belt; the transverse adjusting driving piece is arranged on the longitudinal adjusting plate and connected with the longitudinal adjusting plate to drive the mounting seat to reciprocate along the conveying direction of the conveying belt;

The cutting driving piece is arranged on the mounting seat and drives the cutting knife to prop against or be away from one side of the baffle plate, which is away from the conveying belt; the cutting knife is a heat sealing knife connected with a power supply.

2. A pack laminator according to claim 1, wherein the pack transport mechanism includes a width adjustment base, a width adjustment drive, and a baffle; one side of the conveying belt is provided with a side feeding station vertical to the conveying direction, and the width adjusting base is slidably arranged on the frame and positioned on the other side of the conveying belt; the width adjustment driving piece is connected with the width adjustment base to drive the width adjustment base to be far away from or close to the conveying belt, and the baffle is arranged on the conveying belt and extends to the conveying belt and is opposite to the side feeding station; the two longitudinal adjusting plates are symmetrically arranged on two sides of the conveying belt, and one of the longitudinal adjusting plates is arranged on the width adjusting base; the longitudinal adjustment driving piece and the transverse adjustment driving piece adopt driving structures for driving a screw nut by a motor; the two packaging film corner cutting mechanisms positioned on the same side of the conveying belt share the same longitudinal adjusting plate and the longitudinal adjusting driving piece.

3. The packaging box film laminating machine according to claim 1, wherein the packaging film sealing and cutting mechanism comprises a cutting base, a pressing fixing seat, a pressing movable seat, a pressing cylinder, a pair of pressing plates and a sealing and cutting knife; the pressing fixing seat is arranged on the frame and positioned at the top of the cutting base; the compressing movable seat is movably arranged below the compressing fixed seat through a guide rod and a guide hole; the compression cylinder is arranged on the compression fixing seat and connected with the compression fixing seat to drive the compression movable seat to reciprocate up and down; the bottoms of the two pressing plates are parallel and point to the cutting base, and the tops of the two pressing plates are connected through a connecting plate, extend upwards through a guide rod and are movably installed in an up-down mode to form guide holes with the pressing fixing seats; the sealing cutting knife is arranged between the two compacting plates, and the top of the sealing cutting knife is provided with a guide rod which extends upwards and passes through the connecting plate to be movably installed up and down with the guide hole on the compacting fixed seat; the guide rod between the pressing plate and the pressing fixing seat is provided with a pre-tightening spring; the bottom of the sealing and cutting knife is higher than or equal to the bottom of the compacting plate.

4. A pack film laminating machine according to claim 3, wherein said pack film pulling mechanism comprises a rest plate, a film pulling mounting plate, a film pulling driving member and a film pulling air claw; the stop plate is horizontally arranged between the cutting base and the pressing plate and is positioned at the side edge of the pressing plate close to the input side of the packaging film; the film pulling mounting plate is slidably mounted on one side of the output end of the packaging film sealing and cutting mechanism through a track parallel to the output direction of the packaging film and is connected and driven by the film pulling driving piece; the film pulling air claws are arranged on the film pulling mounting plate and face the stopping plate; the stopping plate is provided with a notch corresponding to the film pulling air claw.

5. The packaging box film laminating machine according to claim 4, wherein the packaging film opening mechanism is arranged along the side edge of the packaging film pulling mechanism and is parallel to the conveying direction of the conveying belt, and comprises a strip-shaped seat, an approaching driving piece, an approaching base, a transverse driving piece, two lead screws, four opening and closing seats, four opening and closing pieces and an air blowing piece;

the strip-shaped seat is perpendicular to the film drawing mounting plate, is movably mounted on the frame through a track parallel to the film drawing mounting plate, and is connected with the approaching driving piece to drive the strip-shaped seat to approach or be far away from the film drawing mounting plate; the approaching base is slidably arranged on the strip-shaped base through a track parallel to the moving track of the film drawing mounting plate and is connected with the strip-shaped base through the transverse driving piece to drive the strip-shaped base to reciprocate along the moving track of the film drawing mounting plate; the two lead screws are arranged on the approaching base in parallel at intervals and horizontally and rotatably; the screw rods are synchronously driven to rotate by the motor, the synchronous wheels and the synchronous belt, threads at two ends of the screw rods are opposite and are respectively connected by a gear to drive the opening and closing seat; two opening and closing seats at the bottom are respectively provided with two opening and closing pieces; the two opening and closing seats at the top are respectively provided with an opening and closing lifting seat through vertical rails; the opening and closing lifting seat is connected with a lifting opening and closing driving piece arranged on the opening and closing seat to drive the opening and closing driving piece to reciprocate up and down; the other two propping pieces are respectively arranged on the two opening and closing lifting seats and are close to or separated from the two propping pieces at the bottom;

The expanding pieces comprise L-shaped insertion blocks, clamping blocks and clamping cylinders; the L-shaped insertion block comprises a flat insertion end, wherein the insertion end is horizontally arranged and vertically points to the transverse translation driving piece; the L-shaped inserting blocks of the two stretching pieces positioned on the same side are oppositely arranged, the corresponding two clamping cylinders are respectively arranged on the opposite sides of the two L-shaped inserting blocks, and are respectively connected with and drive the two clamping blocks to prop against or be far away from the opposite sides of the two L-shaped inserting blocks; the opening and closing driving piece is connected with the opening and closing driving piece to drive the top or bottom opening and closing piece to reciprocate up and down; the air blowing pieces are arranged among the four spreading pieces, and are provided with air inlet holes and air blowing holes which are horizontally arranged and face the transverse translation driving piece; one end of the air inlet hole is connected with an external air source, and the other end of the air inlet hole is connected with the air blowing hole;

and a packaging film sealing and cutting mechanism is further arranged between the packaging film opening mechanism and the conveying belt.

6. A pack laminator according to claim 5, wherein the pack conveyor further includes a feed conveyor, a pusher assembly, and a discharge assembly; the pushing assembly and the discharging assembly are arranged on two sides of the discharging end of the feeding conveyor belt; the feeding conveyor belt and the conveying belt are arranged at two sides of the packaging film opening mechanism;

The discharging assembly comprises a discharging mounting seat, an L-shaped rod, a sliding block and a discharging opening and closing driving piece; the discharging installation seat is installed close to the feeding conveyor belt; the two L-shaped rods and the sliding block are respectively arranged on the discharging installation seat in a sliding way through the sliding block and a track parallel to the conveying direction of the feeding conveyor belt, and the two L-shaped rods are oppositely arranged at intervals to form a sliding groove; the discharging opening and closing driving piece is arranged on the discharging installation seat and connected with the discharging installation seat to drive the two L-shaped rods to approach or depart; the discharging assembly further comprises a discharging lifting driving piece, and the discharging lifting driving piece is connected with and drives the discharging mounting seat to reciprocate up and down;

the discharging lifting driving piece is arranged at the bottom of the mounting seat and comprises a first lifting seat, a second lifting seat, a transverse guide rod, a first guide rod, a second guide rod, a motor, a gear and a rack; the first lifting seat and the second lifting seat are arranged below the discharging installation seat, and two second lifting seats are arranged on two sides of the first lifting seat; at least two transverse guide rods are parallel to the feeding conveyor belt and penetrate through the first lifting seat and the second lifting seat; the top of the first guide rod is fixed at the bottom of the discharging installation seat and extends downwards to penetrate through the first lifting seat; the second guide rods are at least two, are respectively fixed on the two second lifting seats, extend upwards and penetrate through the two sliding blocks, and are respectively connected with the two L-shaped rods; the rack is vertically arranged on the first lifting seat, and the motor is arranged on the frame and drives the rack, the first lifting seat, the second lifting seat and the two L-shaped rods to reciprocate up and down through gear connection; the pushing assembly comprises a pushing driving piece and a pushing rod; the pushing rod is arranged in parallel with the feeding direction of the feeding conveyor belt, and is driven by the pushing driving piece to reciprocate on the feeding conveyor belt close to or far away from the discharging assembly.

7. The packaging box laminating machine according to claim 1, wherein the packaging box bagging mechanism comprises a supporting frame, a transverse rail, a translation plate, a translation driving piece, a vertical rail, a limiting piece, a lifting plate, a longitudinal rail, a moving block, an opening and closing driving piece and a pushing plate;

the translation plate is slidably arranged on the support frame through a transverse track; the translation driving piece is arranged on the supporting frame and connected with the opening mechanism for driving the translation plate to be close to or far away from the packaging film;

the lifting plate is slidably mounted on the translation plate through a vertical rail; the limiting piece is arranged on the translation plate and limits the installation height of the lifting plate;

the two moving blocks are slidably arranged on the lifting plate through longitudinal rails; the opening and closing driving piece is arranged on the lifting plate and connected with the lifting plate to drive the two moving blocks to approach or separate from each other;