CN219487958U

CN219487958U - Novel plastic packaging container

Info

Publication number: CN219487958U
Application number: CN202223190708.7U
Authority: CN
Inventors: 赵新民
Original assignee: Xinzheng Yiqun Plastic Products Co ltd
Current assignee: Xinzheng Yiqun Plastic Products Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-08-08
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a novel plastic packaging container, which comprises a container wall part and a container bottom part, wherein the container wall part is of a cavity structure with two open ends and big top and small bottom, and the container wall part is integrally injection molded; the bottom part of the container is inlaid at the bottom opening of the container wall part; a closed-bottom container cavity is formed between the inner end surface of the container bottom part and the inner wall surface of the container wall part. According to the utility model, the container wall part and the container bottom part are respectively injection molded, so that the mold locking force of injection molding equipment can be reduced, the production efficiency is improved, the mold pressure is reduced, the service life of the mold is prolonged, the cost and the space of the mold are saved, and the cooling waterway is closer to the inner wall of the mold, so that the cooling time is saved. The material processing temperature is reduced, the energy consumption is saved, and the impact resistance of the product is improved. The waste condition of the material with the over-thick bottom is improved, the median thickness of the side wall is improved, the injection molding principle and the mechanical principle are met, and the material is saved and the bearing capacity of the product is enhanced.

Description

Novel plastic packaging container

Technical Field

The utility model belongs to the technical field of plastic containers, and particularly relates to a novel plastic packaging container.

Background

Most plastic packaging containers in the current market are thin-wall structures for saving cost, and materials with larger flow length and larger flow length have poorer impact resistance and cannot meet the requirements of complex environments such as transportation, movement and the like. The packaging container has higher requirement on the bearing strength of the side wall and lower requirement on the bearing pressure of the bottom, but the bottom single-point glue feeding forming of the bottom used in the prior art can cause the bottom of the formed container to be too thick, so that the waste of materials is caused, and the requirement on the bearing strength of the side wall is high, but the middle position of the side wall becomes the weakest place due to the reinforcing rings and the surface support at the upper opening and the bottom of the container, the structural defect causes the bearing capacity of the container to be relatively poor, the container is easy to damage in the carrying and moving processes, and finally, the comprehensive cost of manufacturers is higher.

Disclosure of Invention

The utility model provides a novel plastic packaging container which is used for solving the technical problems of poor bearing capacity and high comprehensive cost of the existing packaging container.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the novel plastic packaging container comprises a container wall part and a container bottom part, wherein the container wall part is of a cavity structure with two open ends and big top and small bottom, and the container wall part is integrally injection molded; the bottom part of the container is inlaid at the bottom opening of the container wall part; a closed-bottom container cavity is formed between the inner end surface of the container bottom part and the inner wall surface of the container wall part. The container wall part and the container bottom part are respectively injection-molded, the container bottom part is added into an injection molding cavity of the container wall part as an insert after injection molding, the container bottom part is directly molded with the container bottom part during injection molding of the container wall part, the over-thick injection molding of the existing container bottom is avoided by the mode of injection molding respectively, the container wall part is directly and integrally injection-molded, the thickness can be adjusted as required, and the flow length ratio of each part molding is shortened due to the fact that the container wall part and the container bottom part are independently injection-molded, and materials with good toughness and strong shock resistance can be selected after the restriction of the flow length ratio is eliminated, so that the integral shock resistance of a product is improved.

As a preferred embodiment of the present utility model, the container wall portion has a structure of unequal thickness.

As a preferable scheme of the utility model, the container wall part is of a structure with a thick middle and two thin ends, the middle position of the side wall is reinforced, the weakness of the middle part of the side wall is made up, and the material is saved and the bearing capacity of the container is enhanced.

As a preferable mode of the utility model, the container wall part comprises a container side wall and a container opening, the container side wall is enclosed into a hollow cavity, the top opening of the container side wall is directly the container opening, and the container opening is communicated with the cavity. The container side wall is directly a structure with a large top and a small bottom, the top opening is a container opening, the size of the container opening is larger than that of the bottom opening, and the bottom opening of the container side wall provides a mosaic position for the bottom part of the container.

As a preferable scheme of the utility model, the thickness of the side wall of the container is 0.5 mm-5 mm.

As a preferred embodiment of the utility model, the thickness of the bottom part of the container is 0.35-mm-4 mm.

As a preferred embodiment of the present utility model, the cross section of the side wall of the container is circular or polygonal, and the circular shape may correspond to a barrel-shaped container or a bowl-shaped container. The polygon may be triangle, quadrangle, star, etc., preferably square, and the square structure may be designed corresponding to the square box container according to practical requirement.

As a preferable mode of the utility model, the container wall part is a PP container wall part or a PE container wall part or a PC container wall part; the container bottom part is a PP container bottom part or a PE container bottom part or a PC container bottom part, and the selected material has good toughness and strong impact resistance.

Compared with the prior art, the utility model has the following beneficial effects:

1. the structure of the existing packaging container is changed, the packaging container is divided into a container wall part and a container bottom part, the container wall part and the container bottom part are respectively subjected to injection molding, the container wall part is formed by side surface multipoint glue feeding, the container bottom part is formed by bottom multipoint glue feeding, the requirement on the mold locking force of injection molding equipment can be greatly reduced, and then a plurality of containers can be molded at one time, and the production efficiency is improved.

2. The utility model can greatly reduce the pressure on the mould, prolong the service life of the mould, reduce the volume of the mould, save the cost and space of the mould, and simultaneously lead the cooling water path of the mould to be closer to the inner wall of the mould, thereby achieving the effects of saving cooling time and improving the productivity in unit time.

3. The processing temperature of the material can be reduced, and the energy consumption is saved, because the material has certain heat conductivity, the lower the processing temperature is, the shorter the time for curing and forming is, the energy consumption is reduced, the cooling time is shortened, and the forming period is shortened on the premise of ensuring the product quality.

4. The material with low flow length ratio can be used for injection molding, so that the impact resistance of the product is improved.

5. The situation of material waste caused by excessive thickness of the bottom can be improved, the middle position thickness of the side wall is improved, the injection molding principle and the mechanical principle are met, and the material is saved and the bearing capacity of the product is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the tub container of the present utility model.

Fig. 2 is a cross-sectional view of the tub container of the present utility model.

Fig. 3 is a schematic structural view of the square box of the present utility model.

Fig. 4 is a cross-sectional view of the square box of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.

Example 1:

the novel plastic packaging container is illustrated by way of example as a 20L universal tub, as shown in fig. 1 and 2, comprising a container wall portion 1 and a container bottom portion 2.

The wall part 1 and the bottom part of the container can be made of PP, PE or PC, the embodiment is preferably made of PP, and the embodiment can operate containers with any thickness, especially for thin-wall containers, the effect is more excellent, for thin-wall containers, the thickness of the side wall 11 of the container is 0.5 mm-5 mm, and the thickness of the bottom part of the container is 0.35 mm-4 mm.

The container wall part 1 comprises a container side wall 11 and a container opening 12, the container side wall 11 is enclosed to form a hollow cavity, two ends of the cavity are open and form a structure with big top and small bottom, the top opening of the container side wall 11 is directly a container opening, the container opening is communicated with the cavity 14, and the bottom opening of the container side wall provides a mosaic position for the bottom part of the container.

The container bottom part 2 is embedded into the bottom opening of the container side wall, specifically, after the container bottom part is injection molded, the container bottom part is directly placed into an injection molding cavity of the container wall part as an insert, and the container wall part is directly and hermetically connected with the container bottom part during side surface multipoint glue injection molding, so that a container cavity with a closed bottom is formed between the inner end surface of the container bottom part 2 and the inner wall surface of the container wall part 1.

And for the structure that the wall thickness of the side wall of the container is different in thickness from bottom to top, the structure with two thick middle ends and two thin ends is preferably used, the middle position of the side wall is reinforced, the weakness of the middle part of the side wall is compensated, and the pressure bearing capacity of a product is improved.

The cross section of the container side wall 1 is designed according to practical requirements and can be circular or polygonal, in this embodiment circular.

Of course, the shape of the side wall of the container is not limited, and may be polygonal, such as triangle, quadrangle, star, or the like, according to actual settings.

Example 2:

a novel plastic packaging container according to the present utility model will be further described by taking a square box as an example, and as shown in fig. 3 and 4, the cross section of the container side wall 11 is square, and the rest is the same as that of example 1.

In the description of the present specification, reference to the terms "one embodiment," "example," "specific example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A novel plastic packaging container comprising a container wall part (1) and a container bottom part (2), characterized in that: the container wall part (1) is of a cavity structure with two open ends and big top and small bottom, and the container wall part (1) is integrally injection molded; the container bottom part (2) is inlaid at the bottom opening of the container wall part (1); a container cavity with a closed bottom is formed between the inner end surface of the container bottom part (2) and the inner wall surface of the container wall part (1);

the container wall part (1) is of a structure with a thick middle and two thin ends.

2. A novel plastic packaging container as claimed in claim 1, wherein: the container wall part (1) comprises a container side wall (11) and a container opening (12), the container side wall (11) is enclosed into a hollow cavity, the top opening of the container side wall (11) is directly the container opening, and the container opening is communicated with the cavity.

3. A new plastic packaging container as claimed in claim 2, wherein: the thickness of the side wall (11) of the container is 0.5-mm-5 mm.

4. A novel plastic packaging container as claimed in claim 3, wherein: the thickness of the bottom part of the container is 0.35-mm-4 mm.

5. A new plastic packaging container as claimed in claim 2, wherein: the cross section of the container side wall (11) is circular or polygonal.

6. A novel plastic packaging container according to claim 1 or 2 or 3 or 4 or 5, characterized in that: the container wall part (1) is a PP container wall part or a PE container wall part or a PC container wall part; the container bottom part is a PP container bottom part or a PE container bottom part or a PC container bottom part.

7. A new plastic packaging container as claimed in claim 2, wherein: the container wall part (1) is a PP container wall part or a PE container wall part or a PC container wall part; the container bottom part is a PP container bottom part or a PE container bottom part or a PC container bottom part.