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Composite co-extrusion tubular plastic lamp shade extrusion die

An extrusion die and round tube technology, which is applied in the field of compound co-extrusion round tube plastic lampshade extrusion mould, can solve the problems of monotony, fragile glass lampshade and inability to process, and achieve good light transmission, beautiful appearance and low cost. Effect

Inactive Publication Date: 2014-04-16
HUBEI ANXIN PLASTIC MOLDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing circular tubular lampshades are made of glass or a single transparent plastic. The glass lampshade is fragile. Although the lampshade made of a single transparent plastic is easy to process, it is relatively monotonous. For occasions with special effects, such as: half of the lampshade has good light transmission , the other half of the lampshade is opaque, and cannot be processed if the existing plastic mold with a single feeding port is used

Method used

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  • Composite co-extrusion tubular plastic lamp shade extrusion die
  • Composite co-extrusion tubular plastic lamp shade extrusion die
  • Composite co-extrusion tubular plastic lamp shade extrusion die

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Embodiment Construction

[0009] see Figure 1 to Figure 3 , the present invention includes a mouth template 1, a manifold 2, a transition plate 3 and a mold body 4, and also includes a positioning pin 6, a mandrel 7, a small screw 8 and several long screws 9, in the mouth template 1, the manifold 2 1. Between the transition plate 3 and the mold body 4, a main channel 5 passing through from left to right is provided, an external thread 41 is provided on the outer circular surface of the right part of the mold body 4, and an external thread 41 is arranged on the right end of the inner hole of the mold body 4. There is a main feed port 42, the manifold 2 is provided with a side feed port 21 and a side flow channel 22, the mouth template 1 is provided with a round hole 11 and an end face flow channel 12, and the end face flow channel 12 includes Two symmetrically arranged branch channels 121, two symmetrical grooves 71 are provided on the mandrel 7, one end of the end surface flow channel 12 communicates ...

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Abstract

The invention discloses a composite co-extrusion tubular plastic lamp shade extrusion die, comprising an opening template, a bus plate, a transition plate and a die body. The composite co-extrusion tubular plastic lamp shade extrusion die is characterized by also comprising a locating pin, a core rod, a small screw and a plurality of long screws, wherein a main runner penetrating from left to right is arranged among the opening template, the bus plate, the transition plate and the die body; an outer thread is formed on the external circle surface of the right part of the die body; a main feeding hole is formed in the right end of an inner hole of the die body; a bypass feeding hole and a bypass runner are formed in the bus plate; a round hole and an end face runner are formed in the opening template; the end face runner comprises two branch runners which are symmetrically arranged; two symmetrical grooves are formed in the core rod; one end of the end face runner is communicated with the round hole of the opening template, and the other end of the end face runner is communicated with the bypass runner. The tubular plastic lamp shade disclosed by the invention is good in light transmittance in one half part while is light-tight in the other half part, and is beautiful in appearance and low in cost.

Description

technical field [0001] The invention relates to a mould, in particular to a composite co-extrusion circular tubular plastic lampshade extrusion mould. Background technique [0002] Most of the existing circular tubular lampshades are made of glass or a single transparent plastic. The glass lampshade is fragile. Although the lampshade made of a single transparent plastic is easy to process, it is relatively monotonous. For occasions with special effects, such as: half of the lampshade has good light transmission , the other half of the lampshade is opaque, and cannot be processed if the existing plastic mold with a single feeding port is used. Contents of the invention [0003] The object of the present invention is to provide a composite co-extruded circular tubular plastic lampshade extrusion die with half of the processed circular tubular plastic lampshade having good light transmission and the other half being opaque, beautiful in appearance and low in cost. [0004] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/20B29C48/32
CPCB29C48/16B29C48/30B29C48/32
Inventor 李小锋
Owner HUBEI ANXIN PLASTIC MOLDS
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