One-shot forming method of disposal plastic cup

A molding method, a one-time technology, applied to other household appliances, household appliances, applications, etc., to achieve the effect of uniform thickness, good appearance and shape, and good hand feeling

Inactive Publication Date: 2009-07-01
SHANGHAI QINGYAN PLASTIC PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a one-time molding method for disposable plastic cups, so as to solve many shortcomings in the existing secondary molding method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] A one-time forming method of a disposable plastic cup, comprising the steps of:

[0012] 1. The processed sheet is sent to the electric furnace by the conveying device of the forming machine for heating and softening, and the heating temperature is 250°C-280°C;

[0013] 2. After the sheet is heated, softened and flattened, the forming die of the cup making machine located in the electric furnace is pressed down, and it works with the forming female mold of the cup making machine to punch out the forming cup body;

[0014] 3. After the cup body is formed, use a cylinder to fill the gap between the forming die and the cup body with high-pressure air to separate the formed cup body from the forming die; for general disposable plastic cups, the air pressure is 7 Kilogram;

[0015] 4. The punching edge on the forming die continues to punch down and trim the edge. After trimming, it will be a disposable plastic cup. If the formed plastic cup is to be printed, it will enter t...

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PUM

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Abstract

The invention relates to a method for preparing a disposable plastic cup through once molding. The method comprises the following steps: 1, a sheet material is processed, is sent to an electric furnace through a transportation device of a molding machine and is heated and softened; the heating temperature is between 250 and 280 DEG C; 2, after the sheet material is heated, softened and leveled, a molding head of a cup manufacturing machine positioned in the electric furnace is pressed downwards and is coacted with a molding female mold of the cup manufacturing machine to punch and mold a cup body; 3, after the cup body is molded, high-pressure air is charged to the middle part between the molding head and the cup body through a cylinder so as to detach the molded cup body from the molding head; and 4, a cutting blade of the molding head is continuously subjected to lower punching and side cutting; and after the side cutting, the disposable plastic cup is formed and enters a printing or packaging procedure. The disposable plastic cup formed by a once molding process has the advantages of good appearance shape, even thickness, good hand feel and no raw edges.

Description

technical field [0001] The invention relates to a molding method of a disposable plastic cup, in particular to a molding method of a disposable plastic cup. Background technique [0002] At present, in daily life, a large number of disposable plastic cups need to be used, and these disposable plastic cups are loved by people because of their hygiene, recyclability and ease of use. It has the advantages of light weight, preventing collapse and bursting, high temperature resistance, low temperature resistance, stable performance, and non-toxicity. But the molding process of present disposable plastic cup is to adopt PP, PS, BOPS, PET sheet to prepare through two molding processes usually. Disposable plastic cups formed by two molding processes have rough appearance, uneven thickness, bad hand feeling, and rough edges, which affect people's normal and comfortable use. Contents of the invention [0003] The technical problem to be solved by the present invention is to provid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C51/08B29C51/44B29C51/32B29C51/42B29C51/46B29L22/00
Inventor 桂新国
Owner SHANGHAI QINGYAN PLASTIC PRODS
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