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Feed system of extruding machine

A technology of feeding device and extruder, which is applied in the field of feeding device, can solve the problems such as low production efficiency and difficulty of extruder, and narrow outlet of feeding hopper, so as to increase feeding amount, improve production efficiency, and ensure The effect of production efficiency

Inactive Publication Date: 2007-12-05
ZHANGJIAGANG AMSTAR SANWA MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this kind of feeding device encounters some materials with light bulk specific gravity such as plastic film, it is very difficult for the material to go down from the feeding hopper to the screw barrel of the extruder, so that the amount of material fed from the feeding hopper to the screw barrel is unacceptable. To a very good guarantee, resulting in greatly reduced production efficiency of the extruder; and the above-mentioned feeding hopper and its discharge port are relatively narrow, and the length of the discharge port is usually less than the sum of the two pitches of the screw in the extruder

Method used

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  • Feed system of extruding machine
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Embodiment Construction

[0013] As shown in Fig. 1 and Fig. 2, the feeding device in the extruder of the present invention includes: a feeding hopper 4, a pair of feeding rollers 6 parallel to each other are arranged in the feeding hopper 4, and the rollers of the feeding rollers 6 There are several pointed racks 61 arranged on the surface, and the rotating shafts 62 at both ends of the feeding roller 6 are movably supported on the sidewalls on both sides of the feeding hopper 4 respectively. The shafts are connected, and the input shaft of the reducer 3 is connected with the output shaft of the motor 2. In this embodiment, in order to facilitate feeding, the upper part of the feeding hopper 4 is in the shape of a "trumpet". As shown in Figure 3, screw barrel 8 is installed on the frame 1, is provided with screw rod 7 in screw barrel 8, and described feeding device is arranged on the top of screw barrel 8, and the discharge port of its feeding hopper 4 is connected with screw barrel Corresponding to ...

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Abstract

The present invention discloses one kind of feeding device capable of ensuring accurate material feeding to the extruder. The feeding device includes one feeding bin, one pair of parallel feeding rollers supported movably onto the side walls of the feeding bin, and one driving unit connected to one of the feeding rollers. The present invention is applied mainly in extruder for pelletizing recovered waste plastic.

Description

technical field [0001] The invention relates to an extruder for recycling and granulating waste plastics, in particular to a feeding device in the extruder. Background technique [0002] At present, the structure of the feeding device in the extruder used for recycling and granulating waste plastics is very simple, and the feeding device is exactly a feeding hopper provided with a "horn" shaped feeding port. When this kind of feeding device encounters some materials with light bulk specific gravity such as plastic film, it is very difficult for the material to go down from the feeding hopper to the screw barrel of the extruder, so that the amount of material fed from the feeding hopper to the screw barrel is unacceptable. To a good guarantee, thereby causing the production efficiency of the extruder to be greatly reduced; and the above-mentioned feeding hopper and its discharge port are all relatively narrow, and the length of the discharge port is usually less than the sum ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/10B29B9/06
Inventor 应长云
Owner ZHANGJIAGANG AMSTAR SANWA MACHINERY