CN219116090U

CN219116090U - Multilayer composite packing box lining

Info

Publication number: CN219116090U
Application number: CN202220533125.0U
Authority: CN
Inventors: 金丹英
Original assignee: Meixing Packaging Suzhou Co ltd
Current assignee: Meixing Packaging Suzhou Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2023-06-02
Anticipated expiration: 2032-03-11

Abstract

The utility model provides a lining of a multi-layer composite packing box, which comprises an upper layer of paper board, a plurality of layers of middle layer of paper boards and a lower layer of paper boards; cutting the upper paperboard according to the shape of the product to form a first sheet body and a first bonding reinforcing part for supporting the product; cutting the middle paperboards into a plurality of second sheet bodies for supporting the product according to the shape of the product; cutting the lower paperboard according to the shape of the product to form a third sheet body and a third bonding reinforcing part for supporting the product; the first sheet body, the plurality of second sheet bodies and the third sheet body jointly form a containing cavity for supporting the product. The product accommodating cavity constructed by the utility model forms a semi-sealing structure, and is more attractive compared with a semi-hollowed accommodating cavity; the method adopts a die cutting-hot pressing two-step method to directly carry out the multi-layer paperboard composite preparation of the liner box, the process is actually only two steps, is simple and efficient, is simpler than an integral forming method, and saves manpower and material resources; the lining box has higher stability and better compression resistance and shock resistance by adopting a mode of compounding multiple layers of paper.

Description

Multilayer composite packing box lining

Technical Field

The utility model relates to the technical field of packaging boxes, in particular to a multilayer composite packaging box lining.

Background

In recent years, plastics are widely used in daily life of people, and according to data statistics, global plastic productivity in 2018 is 3.6 hundred million tons, the production is increased by more than 20 times from 1964 to date, and the global plastic production in 2035 is expected to be doubled. Statistics show that the major center of production of global plastics has shifted from the developed economy of europe, america, etc., to asia. The disposable plastic products have large usage amount and low recovery rate, cause serious pollution to soil and marine environment, bring harm to ecological environment which is difficult to eliminate, and seriously harm the physical health of human beings, so the disposable plastic products have attracted extensive attention of the international society, and the treatment of plastic pollution has become a common consensus of the international society. Under the current environment, development of substitutes such as degradable plastics becomes a new bright point, for example, paper is used for replacing plastic products or degradable plastics is a new development trend.

In the prior art, at present, an injection molding process is mostly adopted for the lining box, but the process of the method is complex, and non-degradable plastics are adopted, and if the degradable plastics are adopted, the price is very high; or the integrated folding lining is adopted, so that the process is complex, the stability of the lining prepared by the method is poor, the folding process consumes more manpower and material resources, the shape is single, and the requirements of multiple types of lining with complex shape cannot be met. There are also product accommodating cavities for preparing packaging boxes by a simple compounding process, but such accommodating cavities are generally hollow, have poor aesthetic property and poor structural stability.

Disclosure of Invention

The technical problems to be solved are as follows: the utility model aims to provide a multilayer composite packing box lining, which aims at the technical problems that the existing integrally-formed lining box is complex in process or the product containing cavity prepared by adopting a simple composite process is hollowed-out and attractive appearance is affected, and provides a process for directly preparing the lining box by compounding a plurality of layers of paperboards in a die cutting-hot pressing two-step mode, which is very simple and efficient, and the product containing cavity of the constructed packing box lining can form a semi-sealing structure, and is more attractive compared with the semi-hollowed-out containing cavity and good in structural stability.

The technical scheme is as follows: a lining of a multi-layer composite packing box comprises an upper layer of paper board, a plurality of layers of middle layer paper boards and a lower layer paper board;

cutting the upper paperboard according to the shape of the product to form a first sheet body and a first bonding reinforcing part for supporting the product;

cutting the middle paperboards into a plurality of second sheet bodies for supporting the product according to the shape of the product;

cutting the lower paperboard according to the shape of the product to form a third sheet body and a third bonding reinforcing part for supporting the product;

the first sheet body, the plurality of second sheet bodies and the third sheet body jointly form a containing cavity for supporting the product.

Preferably, the shape and size of the upper paperboard, the plurality of middle paperboards and the lower paperboard are consistent so as to improve the integral strength of the lining of the packing box.

Preferably, the four peripheries of the upper paperboard, the plurality of middle paperboards and the lower paperboard are all connected with side plates, and the side plates can be folded into any angle and are generally perpendicular to the upper paperboard or the lower paperboard.

Preferably, the first sheet body is connected with at least one side of the upper paperboard; the second sheet body is connected with at least one side of the middle layer paper board, and the third sheet body is connected with at least one side of the lower layer paper board.

Preferably, the first sheet body and the third sheet body are vertically overlapped to form a main body of the product accommodating cavity, and the overlapping mode adopts a mode that the first sheet body is arranged above, the third sheet body is arranged below or the third sheet body is arranged above, and the first sheet body is arranged below or the first sheet body and the third sheet body are alternately arranged above.

Preferably, the second sheet body is adhered to the first adhesion reinforcing part and the third adhesion reinforcing part, and four peripheries of the second sheet body are overlapped with the first sheet body and the third sheet body to form a hollowed-out supplementary surface of the accommodating cavity.

Preferably, the upper layer paperboard, the middle layer paperboard and the lower layer paperboard further comprise positioning holes.

Preferably, the upper paperboard and the lower paperboard are paperboard layers and single-sided polylactic acid layers; the middle layer paperboard is a paperboard layer and a double-sided polylactic acid layer.

Preferably, the thickness of the polylactic acid is 15-35mu.

The beneficial effects are that:

1. the product accommodating cavity formed by the utility model forms a semi-sealing structure, and is more attractive compared with a semi-hollowed accommodating cavity.

2. The utility model adopts a die cutting-hot pressing two-step method to directly prepare the liner box by compounding the multi-layer paper boards, the process is actually only two steps, the process is very simple and efficient, and compared with an integral molding mode, the process is simpler, and the manpower and material resources are saved.

3. The lining box adopts a mode of compounding multiple layers of paper, so that the lining box has higher stability and better compression resistance and shock resistance.

4. The utility model adopts environment-friendly paper (paperboard coated with polylactic acid) as raw material, which accords with the national plastic restriction new standard.

Drawings

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

Fig. 1 is a schematic perspective view of the inner liner of the multi-layered composite packing box of example 1.

Fig. 2 is a top view of the liner of the layer composite package of example 1.

Fig. 3 is a schematic view of the upper paperboard in example 1.

Fig. 4 is a schematic view of the middle cardboard in example 1.

Fig. 5 is a schematic view of the lower paperboard in example 1.

In the drawings:

1. an upper paperboard; 2. a middle layer of paper board; 3. a lower paperboard; 4. a side plate; 5. a receiving chamber; 11. a first sheet body; 12. a first adhesion reinforcing part; 21. a second sheet body; 31. a third sheet; 32. a third adhesion reinforcing part; 51. and (5) hollowing out the supplementing surface.

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.

Detailed Description

The utility model will be described in detail below with reference to the drawings in combination with embodiments.

Example 1

As shown in fig. 1, 3-5, a multi-layer composite packing box liner comprises an upper layer paperboard 1, a middle layer paperboard 2 and a lower layer paperboard 3, wherein the upper layer paperboard 1, the middle layer paperboard 2 and the lower layer paperboard 3 are paperboards coated with polylactic acid, the thickness of the polylactic acid is 15-35mu, the upper layer paperboard 1 and the lower layer paperboard 3 are coated on one side, and the middle layer paperboard 2 is coated on two sides; as shown in fig. 3-5, the sizes and shapes of the upper paperboard 1, the middle paperboard 2 and the lower paperboard 3 are consistent, solid lines are cutting lines in the drawing, broken lines are folding lines, the upper paperboard 1 is cut into a first sheet 11 and a first bonding reinforcing part 12 for supporting a product according to the shape of the product, and the first sheet 11 is connected with at least one side of the upper paperboard 1; cutting a plurality of middle-layer paperboards 2 into a plurality of second sheet bodies 21 for supporting products according to the shape of the products, wherein the second sheet bodies 21 are connected with at least one side of the middle-layer paperboards 2; cutting the lower paperboard 3 into a third sheet body 31 and a third bonding reinforcing part 32 for supporting products according to the shape of the products, wherein the third sheet body 31 is connected with at least one side of the lower paperboard 3; the first sheet 11, the plurality of second sheets 21 and the third sheet 31 together form a semi-sealed containment chamber 5 for supporting the product. The first sheet 11 and the third sheet 31 are vertically overlapped to form a main body of the product accommodating cavity 5, and the overlapping mode adopts a mode that the first sheet 11 and the third sheet 31 are alternately arranged upwards; the second sheet 21 is bonded to the first bonding reinforcement 12 and the third bonding reinforcement 32, and the periphery thereof is overlapped with the first sheet 11 and the third sheet 31 to form a hollowed-out supplementary surface 51 of the accommodating chamber 5. The peripheries of the upper paperboard 1, the middle paperboards 2 and the lower paperboards 3 are all connected with side plates 4, and the side plates can be folded into any angle and are generally perpendicular to the upper paperboards 1 or the lower paperboards 3.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The lining of the multilayer composite packing box is characterized by comprising an upper paperboard layer, a plurality of middle paperboard layers and a lower paperboard layer;

2. A multi-layer composite package liner according to claim 1, wherein: the four peripheries of the upper paperboard, the plurality of middle paperboards and the lower paperboard are all connected with side plates, and can be folded into any angle.

3. A multi-layer composite package liner according to claim 1, wherein: the first sheet body is connected with at least one side of the upper paperboard; the second sheet body is connected with at least one side of the middle layer paper board, and the third sheet body is connected with at least one side of the lower layer paper board.

4. A multi-layer composite package liner according to claim 1, wherein: the first sheet body and the third sheet body are vertically lapped to form a main body of the product accommodating cavity, the lap joint mode adopts a mode that the first sheet body is arranged on the upper side, the third sheet body is arranged on the lower side or the third sheet body is arranged on the upper side, and the first sheet body is arranged on the lower side or the first sheet body and the third sheet body are alternately arranged on the upper side.

5. A multi-layer composite package liner according to claim 1, wherein: the second sheet body is bonded with the first bonding reinforcing part and the third bonding reinforcing part, and four peripheries of the second sheet body are overlapped with the first sheet body and the third sheet body to form a hollowed-out supplementing surface of the accommodating cavity.

6. A multi-layer composite package liner according to claim 1, wherein: and the upper paperboard, the middle paperboard and the lower paperboard also comprise positioning holes.

7. A multi-layer composite package liner according to claim 1, wherein: the upper paperboard and the lower paperboard are paperboard layers and single-sided polylactic acid layers; the middle layer paperboard is a paperboard layer and a double-sided polylactic acid layer.