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Color gradient injection molding process for packaging bottle

A color gradient and packaging bottle technology, applied in applications, home appliances, and other home appliances, can solve problems such as low color fastness and easy discoloration of plastic pipes, and achieve the effects of prolonging the blending time, improving color fading, and having a flawless surface

Active Publication Date: 2021-09-21
GUANGZHOU SHANGEN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the plastic tube is colored by spraying paint, the plastic tube is easy to decolorize, and the color fastness is low

Method used

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  • Color gradient injection molding process for packaging bottle
  • Color gradient injection molding process for packaging bottle
  • Color gradient injection molding process for packaging bottle

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Experimental program
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Embodiment Construction

[0049] The following is attached Figure 1-7 The application is described in further detail.

[0050] The embodiment of the present application discloses a color gradient injection molding process for packaging bottles. refer to figure 1 A color gradient injection molding process for packaging bottles comprises the following steps:

[0051] S1. Prepare plastic raw materials of two different colors.

[0052] S2. Import plastic raw materials of two different colors into different lower hoppers 1 respectively, and transport the plastic raw materials of two colors to two injection systems 2 respectively through different lower hoppers 1; the discharge end of each injection system 2 is connected to the Electronic valves are arranged between the feeding ends of the injection pipes, and the injection system 2 adopts a screw type injection system 2 .

[0053] S3. The heating system 3 is wrapped around the screw pusher of the injection system 2. The heating system 3 heats the two i...

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PUM

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Abstract

The invention relates to a color gradient injection molding process for a packaging bottle. According to the color gradient injection molding process for the packaging bottle, plastic raw materials with different colors are selected as preparation raw materials of a plastic pipe, so that the produced plastic pipe does not fade, and the color fastness of the plastic pipe is remarkably improved; and the plastic raw materials with different colors are injected into a mold cavity through the same injection nozzle in a segmented manner, and a gradient color section appears at the joints of every two adjacent plastic raw materials with different colors, so that the attractiveness of the plastic pipe is improved. Meanwhile, a material removing system is additionally arranged, so that a lug boss formed on the outer bottom wall of the plastic pipe due to overflow of the materials out of the injection nozzle can be removed, the subsequent operation step of manually removing the lug boss by using a cutter is omitted, the production efficiency is improved, the labor cost is reduced, and the possibility that the plastic pipe is scratched by the cutter is reduced.

Description

technical field [0001] The present application relates to the technical field of spray molding technology, in particular to a color gradient injection molding technology for packaging bottles. Background technique [0002] Plastic tube is a common packaging container. It is mainly made of polyester (PET), polyethylene (PE) and polypropylene (PP). After adding corresponding organic solvents and heating at high temperature, it is blown through a plastic mold. Molded, extrusion blown, or injection molded plastic containers. Among them, plastic tubes made by injection molding are mostly used in the packaging of daily chemical products. [0003] When using the injection molding process to prepare plastic pipes, it needs to be used with an injection molding machine. The current injection molding machine generally includes subsystems such as a feeding system, an injection system, a heating and cooling system, a mold clamping system, and an electrical control system. Among them, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/13B29C45/16B29C45/17B29C37/02B29L23/00
CPCB29C45/0055B29C45/13B29C45/1634B29C45/1769B29C2045/0058B29L2023/00
Inventor 陈忠勤
Owner GUANGZHOU SHANGEN IND CO LTD