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Injection nozzle for sandwich closestool cover plate injection molding technique

An injection molding process and injection nozzle technology, applied in applications, household components, household appliances, etc., can solve the problems of low production efficiency, complex process, high process cost, etc., to reduce process cost, simplify equipment and process, and improve production efficiency Effect

Inactive Publication Date: 2010-09-08
李飞宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides an injection nozzle for the injection molding process of the sandwich toilet cover, and its main purpose is to overcome the disadvantages of the existing sandwich toilet cover injection molding process due to the use of two nozzles for injection molding to form the skin layer and the core layer respectively. The disadvantages of complex process, high process cost and low production efficiency

Method used

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  • Injection nozzle for sandwich closestool cover plate injection molding technique
  • Injection nozzle for sandwich closestool cover plate injection molding technique

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Embodiment Construction

[0012] A specific embodiment of the present invention will be described below with reference to FIG. 1 .

[0013] This embodiment provides an injection nozzle used in the injection molding process, which is mainly used in the injection molding process of the sandwich toilet cover. The sandwich toilet cover is mainly divided into a skin layer and a core part covered in the skin layer. The skin layer and the core part are made of different plastic materials. For example, the skin layer can be made of the plastic used for the first time, and the The core layer can be made of secondary plastic, so that the appearance of the produced toilet cover looks good in texture and color, and at the same time, the recycled waste toilet cover can be reused to save raw materials.

[0014] Referring to FIG. 1 , the main structure of the nozzle includes a base 1 , an inner tube 2 and a sleeve 3 . The base 1 is provided with a passage 10, and the passage 10 communicates with the core barrel of t...

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Abstract

The invention discloses an injection nozzle used for the injection molding technique of a sandwich toilet cover plate; the nozzle is provided with an injection opening and two flow passages communicated with the injection opening; the two flow passages are respectively a cortical layer material flow passage and a core material flow passage; the cortical layer material flow passage and the core material flow passage are respectively and correspondingly communicated with a cortical layer material cylinder and a core material cylinder of an injection machine. When manufacturing the toilet cover plate with a sandwich structure, the same nozzle is used for carrying out injection to form a cortical layer and a core part without needing to use two nozzles to carry out injection alternately; thereby simplifying equipment and the technique, reducing the technique cost and simultaneously improving the manufacture efficiency.

Description

technical field [0001] The invention relates to an injection molding process, in particular to an injection nozzle used in the injection molding process of a sandwich toilet cover. Background technique [0002] The traditional toilet cover is usually made of one material and injection molded at one time. Therefore, the injection molding of high-quality plastic material becomes a high-grade toilet cover, while the injection molding of poor-quality plastic material becomes a low-grade toilet. cover plate. For example, in order to save raw materials and reduce costs, the texture and color of the toilet cover made of recycled secondary plastic injection molding will be quite different from that of the toilet cover made of primary plastic. It usually has black spots on its surface. In the case of increasingly fierce competition in the bathroom industry, how to produce high-quality toilet covers at low cost has been a subject of research by technicians in the industry. [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/20B29L31/00
Inventor 王湘冀陈家和
Owner 李飞宇