Bottom structure of extrusion forming metal bottle and optimization method

A bottom structure and extrusion molding technology, applied in the field of packaging, can solve the problems of unfavorable axial bearing pressure and compressive strength, reduce the volume of the container, increase the amount of materials, etc., to increase the axial bearing pressure and pressure resistance of the bottom of the bottle The effect of intensity

Pending Publication Date: 2021-08-13
HANGZHOU CPMC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, increasing the height of the arch will increase the amount of materials used, which will increase the cost, and will also reduce the volume of the container. In order to ensure that the volume remains unchanged, it must be compensated by increasing the height of the bottle body, which further increases the amount of materials; Without increasing the amount of material while increasing the height, the wall thickness of the bottom will be reduced, which is not conducive to improving the axial bearing pressure and compressive strength

Method used

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  • Bottom structure of extrusion forming metal bottle and optimization method
  • Bottom structure of extrusion forming metal bottle and optimization method
  • Bottom structure of extrusion forming metal bottle and optimization method

Examples

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Embodiment 1

[0042] see image 3 , Figure 4 , Figure 5 , this embodiment provides a bottom structure of an extruded metal bottle, including a bottom body 1, the bottom body 1 is a center-symmetric rotary body, the rotary body is a semi-closed cylindrical structure, and the semi-closed tube The structure includes a side wall section ab, a transition arc section bc, a slope structure section cd, a ground contact section df, and an arched structure section eh arranged sequentially from top to bottom, and the ground contact section df contains the ground contact point e, there is an overlapping portion between the ground contact portion segment df and the arched structure segment eh, and each segment of the semi-closed cylindrical structure is a smooth transition of a curved surface; the generatrix of the side wall segment ab is a vertical line, so The generatrix of the transition arc section bc is a circular arc, the generatrix of the slope structure section cd is an inclined straight lin...

Embodiment 2

[0051] This embodiment provides a method for optimizing the bottom structure of the extruded metal bottle described in Embodiment 1, and its specific steps are as follows:

[0052] (1) Carry out simulation calculations on the bottom structure of existing products, and use the calculated results of axial bearing pressure and compressive strength as reference standards;

[0053] (2) Design an initial model, and calculate the axial bearing pressure and compressive strength;

[0054] (3) Take the key geometric parameters of the bottom structure as variables, set the amount of material constant, the volume of the bottle body, the diameter of the bottle body, and the height of the bottle body as constraints, and change the value of the geometric variables to obtain a new Bottom structure model, and simulated calculations to obtain the axial bearing pressure and compressive strength of the new bottom structure;

[0055] (4) Compare the obtained axial bearing pressure and compressive...

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Abstract

The invention provides a bottom structure of an extrusion forming metal bottle and an optimization method. The bottom structure of the extrusion forming metal bottle comprises a bottom body, the bottom body is a centrosymmetric rotary body, the rotary body is of a semi-closed cylindrical structure, the semi-closed cylindrical structure comprises a side wall section, a transition arc section, a slope structure section, a ground contact part section and an arched structure section which are sequentially arranged from top to bottom, the ground contact part section comprises a ground contact point, and an overlapping part exists between the ground contact part section and the arched structure section; and the generatrix of the side wall section is a vertical line, the generatrix of the transition arc section is an arc, the generatrix of the slope structure section is an inclined straight line from outside top to inside bottom, the generatrix of the ground contact part section is formed by turning and connecting two sections of first-order Bezier curves at the ground contact point, and the generatrix of the arched structure section is formed by connecting two sections of first-order Bezier curves starting from the ground contact point and a section of horizontal line close to the axis.

Description

technical field [0001] The invention belongs to the technical field of packaging, and in particular relates to a bottom structure and an optimization method of an extruded metal bottle. Background technique [0002] At present, extruded metal packaging bottles have a broad market and application fields. Because of its novel appearance, easy to print, high strength, not easy to break, safe and hygienic, environmentally friendly, recyclable and many other advantages. It is more and more widely used in the fields of beer beverages, daily chemical products and medicines. [0003] The physical performance requirements of the content on the metal bottle are mainly axial pressure and compressive strength. Axial bearing pressure refers to the maximum compression force that the bottle can bear in the axial direction when it is placed vertically. Compressive strength refers to the corresponding internal and external pressure difference when the bottle is filled with water or air, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D1/02B65D1/46
CPCB65D1/0276B65D1/46
Inventor 李波陈宇星
Owner HANGZHOU CPMC
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