Double-step type metering screw conveyor

A metering screw and conveyor technology, which is applied in transportation and packaging, loading/unloading, packaging, etc., can solve the problems of formula raw material waste, feeding metering accuracy error, large feeding amount, etc., and achieve simple and convenient control procedures Precise feed and simple mechanical structure

Inactive Publication Date: 2014-08-06
ZHANGJIAGANG BEIER MACHINERY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] At present, the metering screw conveyor used in the PVC raw material compounding production line on the known plastic pipe production line is composed of a metering screw. It is difficult to achieve micro-feeding, which causes a large error in the accuracy of the feeding metering, which brings great disadvantages to the product quality of PVC raw material compounding and subsequent production. Not only the formula raw materials are wasted, but also unqualified products are easily produced

Method used

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  • Double-step type metering screw conveyor

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Embodiment Construction

[0011] In the accompanying drawings, the raw material storage bucket (2) is fixed on the upper part of the large metering screw cylinder (3), the large metering screw drive motor (1) is fixed on the rear of the large metering screw cylinder (3), and the large metering screw motor (1 ) to drive the large metering screw feeding screw (4) to rotate, to transport the material from the raw material storage hopper (2) to the discharge port (5) and directly fall into the electronic scale hopper (10), when the load cell ( 11) When it is detected that the material in the electronic scale hopper (10) is close to the full scale of the set value, the large metering screw drive motor (1) stops working, and the small metering screw motor (6) fixed on the lower part of the large metering screw cylinder (3) ) to drive the small metering screw feeding screw (9) to rotate in the small metering screw barrel (8), conveying the material from the transition pipe (7) to the feeding port (5) and direc...

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Abstract

The invention provides a double-step type metering screw conveyor which is used for conveying raw materials on a PVC raw material compounding line in a metering mode. Two metering screw conveyor units different in size are combined to achieve double-step precise feeding metering. When metering is started, the large screw conveyor unit carries out rough feeding, when the full scale of metering is nearly reached, the small screw conveyor unit is used for fine feeding, the metering process is divided into the rough feeding and fine feeding, the metering precision is substantially improved, and PVC raw material mixing and accepted product producing are reliably guaranteed.

Description

technical field [0001] The invention relates to a metering screw conveyor used in a PVC raw material compounding production line, especially a two-stage screw conveyor that realizes precise feeding through the combination of two metering screw conveyors, the size of which makes the metering process divided. There are two processes of coarse feed and fine feed, and the measurement accuracy is greatly improved. Background technique [0002] At present, the metering screw conveyor used in the PVC raw material compounding production line on the known plastic pipe production line is composed of a metering screw. It is difficult to achieve micro-feeding, which causes a large error in the accuracy of the feeding metering, which brings great disadvantages to the product quality of PVC raw material compounding and subsequent production. Contents of the invention [0003] In order to overcome the shortcomings of the metering screw conveyor on the existing PVC raw material compoundi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G65/32B65G33/08
Inventor 何德方邓少东
Owner ZHANGJIAGANG BEIER MACHINERY
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