Automatic feeding device for mixed plastic color master batches

Abstract

The invention discloses an automatic feeding device for mixed plastic color master batches. The automatic feeding device comprises a feeding hopper, wherein the outer wall of one side of the top end of the feeding hopper makes contact with the inner wall of one side of a U-shaped limiting plate, and a plurality of first connecting grooves are formed in the inner side wall, matched with the first connecting grooves in position, of the feeding hopper. The automatic feeding device has the beneficial effects that when materials block the top end of the interior of the feeding hopper or stay at thetop opening of the top end of the interior of the feeding hopper for a long time and cannot rapidly enter an extruder, two electric telescopic rods work alternately, the electric telescopic rod workto press down a movable shaft, the movable shaft is stressed to drive a U-shaped fixed plate to descend so as to drive a transmission rod to descend, the transmission rod is limited through a limitinggroove in a limiting sleeve, the moving stability is improved in the descending process, the transmission rod descends to drive a conical pressing block to descend so that a pressing plate can be inserted into the feeding hopper, and a larger material at the inner top end of the feeding hopper is pressed downwards and pressed into an outlet in the inner bottom end of the feeding hopper.

Description

Technical field: [0001] The invention belongs to the technical field of masterbatch production, in particular to an automatic feeding device for mixing plastic color masterbatches. Background technique: [0002] Master batch means that in the process of plastic processing and molding, for the convenience of operation, the required various additives, fillers and a small amount of carrier resin are first mixed and kneaded, and then measured, mixed, melted and extruded by extruders and other equipment. The granules produced by processing such as extruding and pelletizing are called masterbatches, and the masterbatches are composed of carrier resin, various fillers and various additives. [0003] However, in the existing technology, after the masterbatch is weighed and stirred, when it is fed into the extruder through the lifting device, the volume of the stirred material is relatively large, and the inner diameter of the top opening of the feeding funnel of the extruder is larg...

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Problems solved by technology

[0003] However, in the existing technology, after the masterbatch is weighed and stirred, when it is fed into the extruder through the lifting device, the volume of the stirred material is relatively large, and the inner diameter of the top opening of the feeding funnel of the extruder is large. , the inner diameter of the bottom opening is small, and larger materials generally stay at the top of the funnel for a relatively long time, and cannot quickly enter the extruder, resulting in a decrease in the efficiency of masterbatch manufacturing.

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