Anti-blocking type mixing and discharging device of screw extruder

Abstract

The invention relates to the technical field of extruders, and discloses an anti-blocking type mixing and discharging device of a screw extruder. The anti-blocking type mixing and discharging device comprises a hopper, a connecting pipe and a conveying pipe, wherein the connecting pipe is fixedly arranged at the bottom of the hopper, the conveying pipe is fixedly arranged at the bottom of the connecting pipe, a mounting plate is fixedly connected with the side face of the hopper, the bottom of the mounting plate is fixedly connected with a first motor, and an output shaft of the first motor isfixedly connected with a transverse shaft. According to the anti-blocking type mixing and discharging device of the screw extruder, the first motor and a second motor are started in the mixing process, the second motor operates to drive a movable rod, a connecting rod and an inner sleeve to rotate around a rotating shaft, meanwhile, the second motor can drive a disc to rotate, and a vertical roddrives the outer sleeve ring and the inner sleeve ring to move up and down in a reciprocating mode, therefore, the movable rod swings up and down while rotating, the stirring effect is improved, the materials at the bottom of the hopper are stirred more loosely, and the probability of blockage or bridging is reduced.

Description

technical field [0001] The invention relates to the technical field of extruders, in particular to an anti-blocking type screw extruder mixing and discharging device. Background technique [0002] The screw extruder relies on the pressure and shear force generated by the rotation of the screw, which can make the material fully plasticized and evenly mixed. Through the die molding, the plastic extruder can be basically classified into twin-screw extruder, single-screw extruder, etc. extruder and the rare multi-screw extruder and non-screw extruder, the hopper of the existing extruder usually adopts an open inverted conical hopper structure, when raw materials fall into the hopper from multiple weighing scales At the same time, the diameter of the hopper near the feeding port of the extruder is gradually reduced, but if the change is too fast, the material will form a compacted solid, which will cause blockage in the hopper and over time. In addition, during the mixing proces...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides an anti-blocking type screw extruder mixing and discharging device, which has the advantages of anti-blocking and improved quality, and solves the problems of material blocking and bridging that are prone to occur in the current hopper , and at the same time, the problem of insufficient mixing of a small amount of material at the connection between the hopper and the extrusion screw

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