CN114955158A - Full-folding recycling express packaging box based on modified plastic material and manufacturing method thereof - Google Patents

Abstract

The invention relates to a full-folding recycling packing box based on modified plastic material sheets, which comprises a box body, a box bottom and a box cover, wherein the box body is processed and formed by adopting hot pressing, die cutting and thermal bonding processes, and each plate of the box body and the connecting part of each plate of the box body, the box cover and the box bottom are integrated, hot pressed and thinned or directly bonded with the modified plastic sheets to form a hinge; the box bottom is composed of three layers of structures, the inner layer is a bottom plate, the middle layer is a bottom pressing plate, the outer layer is a modified plastic material sheet, the bottom plate and the bottom pressing plate are respectively bonded with the rear plate and the front plate through hinges, the bottom pressing plate is connected with the bottom plate through a nylon fastener tape, and plastic sheets are adhered to two sides of the bottom pressing plate and are lapped with the side plates to avoid gaps; the box cover comprises a cover plate and a box cover injection molding piece, and the cover plate and the box cover injection molding piece are bonded to form a circle of positioning groove; the box cover injection molding piece is connected with the rubber strip through a hinge, and the rubber strip is connected with the inserting tongue through the hinge and locked with the inserting groove on the box body; the edges of the body plates, the box cover and the box bottom are molded by hot pressing to form firm and closed press edges. The invention has the characteristics of simple processing, convenient use, cyclic reuse and firm sealing.

Description

Full-folding recycling express packaging box based on modified plastic material and manufacturing method thereof

Technical Field

The invention relates to the field of express packaging boxes, in particular to a circular folding express packaging box.

Background

Along with the increasing attention of people to the environmental protection concept and the rapid development of the express industry, a plurality of requirements are put forward on the traditional express packaging box. However, the express package generally has several main problems: 1. the foldability of the express packaging box is difficult to realize without damaging the compressive strength of the express packaging box; 2. when the express package box is used, the processes of assembling the box and disassembling the box are complex, and the use efficiency of the express package is influenced; 3. the express box in an empty box state has no integrity and is easy to lose parts, so that the recycling is hindered; 4. the sealing requirement of the package cannot be met; 5. the sealing problem is difficult to solve.

Disclosure of Invention

In order to better solve the problem of the existing express packaging box, the invention designs the foldable recyclable express packaging box which is simple and convenient to operate, can be folded for multiple times, can be recycled and is resistant to impact.

The express packaging box comprises a box body, a box bottom and a box cover, wherein the folding form of the express packaging box is that a side plate is folded inwards for 90 degrees along the center line of the side plate, the box bottom is folded inwards for 90 degrees along the edge line of the bottom side, the box cover is folded outwards for 270 degrees along the edge line of one side of the box cover, and the box bottom comprises a bottom pressing plate, a bottom plate and a modified plastic material sheet which can be folded inwards.

Furthermore, the bottom plate and the bottom pressing plate are respectively bonded with the rear plate and the front plate through hinges, and the bottom pressing plate is connected with the bottom plate through a nylon fastener tape to form the box body.

Furthermore, the box body is processed and formed by adopting hot pressing, die cutting and thermal bonding processes, each plate of the box body and the connecting part of each plate of the box body, the box cover and the box bottom are integrally hot-pressed and thinned or directly bonded with modified plastic sheets to form a hinge, and the edges of each plate of the box body, the box cover and the box bottom are hot-pressed and molded to form a firm and closed blank holder.

Furthermore, the case lid includes apron and case lid injection molding, and apron and case lid injection molding bind and form a round positioning groove, and the case lid injection molding passes through the hinge to be connected with the rubber strip, and the rubber strip passes through hinged joint latch, with the slot closure on the box.

Further, the box body, the hard plate and the cover plate are all PP plates, the box cover injection molding piece is formed by PP injection molding, and the modified plastic material is a modified flexible PP film with high toughness, high ductility and high friction coefficient.

Furthermore, the box cover and the box cover injection molding piece, the modified plastic material, the box body, the bottom pressing plate and the bottom plate are compounded into a whole or bonded into a whole through hot processing.

Furthermore, the packaging box is also provided with a sealing structure.

The invention also provides a manufacturing method of the full-folding recycling packaging box based on the modified plastic material sheet, which comprises the following steps:

firstly, hot-pressing, thinning and extending each crease line of a flat plate to form a hinge;

secondly, adhering and connecting the flat plates to form a box body;

thirdly, sticking plastic sheets lapped with the side plates of the box body on the two sides of the bottom pressing plate;

fourthly, the bottom pressing plate and the bottom plate are respectively connected with the front plate and the rear plate through strip-shaped modified plastic materials, and the modified plastic materials are adhered to the bottom of the box body;

fifthly, connecting the inserting tongue to the rubber strip through a hinge;

sixthly, connecting the rubber strip connected with the inserting tongue to the injection molding part of the box cover through a hinge;

seventhly, adhering the box cover injection molding piece to the inner side of the cover plate;

eighthly, forming double blank holders by thermoforming the edge of the cover plate and the upper edge of the box body;

and ninthly, sealing the packaging box by using the inserting tongue of the box cover injection molding piece and the slot on the surface of the box body.

The express packaging box can be folded for multiple times and recycled, and the vacancy of the existing market is made up; the folding process is simple, rapid forming and folding can be realized, and the use is convenient; the impact resistance and the stacking stability of the box body are improved by utilizing the strength of the pp honeycomb plate and the high friction characteristic of the modified material; the packaging box is not provided with disposable parts, so that the packaging box is more environment-friendly; the sealing device is simple and the box sealing effect is good.

Description of the drawings:

FIG. 1 is a schematic structural view of an express packaging box after being sealed;

FIG. 2 is a schematic view of a half-open structure of an express packaging box;

FIG. 3 is a schematic view of an internal structure of the express packaging box;

fig. 4 is a schematic structural diagram of the express packaging box in the folding process;

fig. 5 is a schematic structural view of the folded express packaging box;

figure 6 is a schematic structural view of the folded express packaging box when not in use;

FIG. 7 is a schematic structural view of the bottom rigid plate of the express packaging box lifted to a certain extent;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is a schematic view of the structure of the hard plate connected with the front and rear plates by the modified material;

FIG. 10 is a schematic structural view of an injection molded part of a cover of an express packaging box;

figure 11 is a schematic view of the sealing of the package;

in the figure: 1. a front plate; 2. a front left side plate 1; 3. a rear left side plate 2; 4. a left-side hollow plate; 5. a front right side plate 1; 6. a rear right side plate 2; 7. a right side hollow plate; 8. a rear plate; 9. a cover plate; 10. a case cover injection molding piece; 101. Inserting a tongue; 102. a bevel groove; 103. a rubber strip; 11. cushion blocks; 12. locking; 13. a base plate; 131. A nylon buckle is arranged; 132. a groove; 133. a plastic sheet; 14. a bottom platen; 141. mounting a nylon buckle; 142. A handle; 15. a modified plastic material for bottom surface 1; 16. the back plate is made of modified plastic material; 17. the front plate bottom pressing plate is made of modified plastic material 3.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the circulating folding express packaging box is formed by pp honeycomb plates, the box body plate 1 is integrally formed by a front plate 1, a front left side plate 2, a rear left side plate 3, a left side hollow plate 4, a front right side plate 5, a rear right side plate 6 and a right side hollow plate 7, the box body plate 2 is integrally formed by a rear plate 8 and a cover plate 9, and the left side hollow plate 2 and the right side hollow plate 7 are bonded with the rear plate to form the box body. Each folding part of the box body is thinned and extended through hot pressing to form an indentation with a certain width, the thickness of the indentation is smaller than that of the box body, and the indentation and the box body are integrally formed and can be folded for multiple times. The express packaging box is obtained by a PP honeycomb plate, a PP injection molding piece and a modified material in a hot processing or bonding mode, the thickness of the material is determined according to the size of a product and the protection requirement, indentation is made on the surface of a box body plate in a hot pressing mode during processing, then a blank holder is formed on part of the edge through hot press molding, and then the attachment and connection of all parts are completed to obtain the box body.

As shown in fig. 3, 4, 5 and 6, the sealing device is opened, the box cover is turned backwards, the bottom pressing plate 14 is pulled to be turned upwards, the bottom plate 13 is pulled to be turned upwards or folded upwards through bottom jacking, and the left side plate and the right side plate are folded inwards to finish folding of the express packaging box. The left side hollow board 2 and the right side hollow board 7 are hard boards and are folded upwards to leave gaps, and the folding performance of the box body is good. The box cover is provided with a rubber strip 103 and a tongue 101, and after folding is completed, the tongue 101 is inserted into the lock 12 from the other direction around the rubber strip 103 to form a stable folding body. The bottom of the front plate 1 is provided with two cushion blocks 11 to ensure the stability of the folded body stack.

As shown in fig. 7, 8 and 9, the hard board is composed of a bottom board 13 and a bottom pressing board 14, the bottom board is provided with a groove 132, the bottom board is matched with the bottom pressing board 14, the bottom board and the bottom pressing board are connected through an upper nylon buckle 141 and a lower nylon buckle 131, and the bottom surface is a plane in the use state. The upper surface of the hard board is provided with a modified plastic material 16 for a back board bottom board and a modified plastic material 17 for a front board bottom pressing board, and the bottom board 13 and the back board 8 and the bottom pressing board 14 are connected with the front board 1 through an adhesive to be used as hinges. The bottom layer is made of modified plastic material and is adhered to the bottom of the box body to close the outer box.

As shown in fig. 10, the injection molded part 10 of the case cover is bonded to the case cover 9 to form a slope groove 102, and the upper edge of the case body is guided by the slope and placed in the positioning groove when the case cover is closed, thereby stabilizing the cubic shape of the case body. A circle of positioning gap is formed between the two positioning bosses of the box cover injection molding part 10, and the upper edge of the box body is arranged in the positioning gap of the box cover after the box body is molded.

As shown in fig. 11, the latch 12 and the front wall of the packing box form a U-shaped slot into which the box cover latch is inserted, the latch 12 is composed of a raised inclined reverse hook latch, an elastic lock column, a limit flange and a latch frame, and the box cover latch has a groove. The cover of the packing box is closed, the inserting tongue is inserted into the inserting groove, and the inclined plane inverted hook type lock tongue is inserted into the groove of the inserting tongue of the box cover to lock the inclined plane inverted hook type lock tongue, so that the cover of the packing box is closed.

The above embodiments are only for convenience of description of the invention, and are not intended to limit the invention in any way, and those skilled in the art should understand that they can make local changes or modifications within the technical scope of the invention without departing from the technical scope of the invention.

Claims (8)

1. The utility model provides an express delivery packing box, includes box, the bottom of the case and case lid, its characterized in that: the express packaging box is characterized in that the side plates are folded inwards by 90 degrees along the center lines of the side plates, the box bottom is folded inwards by 90 degrees along the edge lines of the bottom side, the box cover is folded outwards by 270 degrees along the edge lines of one side of the box cover, and the box bottom comprises a bottom pressing plate, a bottom plate and a modified plastic material sheet which can be folded inwards.

2. The courier package box of claim 1, wherein: the bottom plate and the bottom pressing plate are respectively bonded with the rear plate and the front plate through hinges, and the bottom pressing plate is connected with the bottom plate through a nylon fastener tape to form the box body.

3. The express packaging box of claim 1, wherein: the box body is processed and formed by adopting hot pressing, die cutting and thermal bonding processes, each plate of the box body and the connecting part of each plate of the box body, the box cover and the box bottom are integrally hot-pressed to be thinned or directly bonded with a modified plastic sheet to form a hinge, and the edges of each plate of the box body, the box cover and the box bottom are hot-pressed to form a firm and closed blank holder.

4. The courier package box of claim 1, wherein: the case lid includes apron and case lid injection molding, and apron and case lid injection molding bind and form a round positioning groove, and the case lid injection molding passes through the hinge to be connected with the rubber strip, and the rubber strip passes through hinged joint insertion tongue, with the slot closure on the box.

5. The courier package box of claim 1, wherein: the box body, the hard board and the cover plate are PP plates, the box cover injection molding piece is PP injection molding, and the modified plastic material is a modified flexible PP film with high toughness, high ductility and high friction coefficient.

6. The courier package box of claim 1, wherein: the box cover and the box cover injection molding piece, the modified plastic material, the box body, the bottom pressing plate and the bottom plate are compounded into a whole or bonded into a whole through hot processing.

7. The courier package box of claim 1, wherein: the packaging box is also provided with a sealing structure.

8. A manufacturing method of an express packaging box is characterized by comprising the following steps: the manufacturing method of the express packaging box comprises the following steps:

firstly, hot-pressing, thinning and extending each crease line of a flat plate to form a hinge;

secondly, adhering and connecting the flat plates to form a box body;

thirdly, sticking plastic sheets lapped with the side plates of the box body on the two sides of the bottom pressing plate;

fourthly, the bottom pressing plate and the bottom plate are respectively connected with the front plate and the rear plate through strip-shaped modified plastic materials, and the modified plastic materials are adhered to the bottom of the box body;

fifthly, connecting the inserting tongue to the rubber strip through a hinge;

sixthly, connecting the rubber strip connected with the inserting tongue to the injection molding part of the box cover through a hinge;

seventhly, adhering the box cover injection molding piece to the inner side of the cover plate;

eighthly, forming double blank holders by thermoforming the edge of the cover plate and the upper edge of the box body;

and ninthly, sealing the packaging box by using the inserting tongue of the box cover injection molding piece and the slot on the surface of the box body.

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