Extrusion equipment for producing multi-color master batches

Abstract

The invention discloses extrusion equipment for producing multi-color master batches. The extrusion equipment comprises an extrusion equipment assembly, and the extrusion equipment assembly comprisesan internal mixing device, a material control device, a reserved transition device, an extrusion die head and a transmission extrusion mechanism. The internal mixing device, the material control device, the reserved transition device and the extrusion die head form a communication barrel body. During use, various raw materials can be mixed and stirred during discharging, so that the raw materialscan be uniformly stirred, the quality of a master batch finished product is further improved, the problem of powder blockage is avoided by adopting a stepless discharging manner, the powder can be discharged more uniformly, firstly, by adopting a stirring manner of a stirring shaft, the raw materials can be uniformly preheated, the phenomenon that hard particles exist in the master batches after the master batches are produced due to non-uniform heating of the raw materials caused by a heating blind area of the powder is avoided, gas in the master batches can be reduced in the secondary process, and the problem that air bubbles exist in the master batches is avoided.

Description

technical field [0001] The invention relates to the technical field of masterbatch production equipment, in particular to an extrusion equipment for multicolor masterbatch production. Background technique [0002] Masterbatch is composed of excess chemical additives, carrier resin and dispersant. Masterbatch is an aggregate obtained by uniformly loading super-normal pigments (dye) in resin. The main components of color masterbatch, pigments, generally divided into organic pigments, such as phthalocyanine green, etc.; inorganic pigments such as iron oxide red, titanium dioxide; dyes such as vat pink, disperse orange, etc. Polyolefin and PVC masterbatches use pigments. Generally speaking, dyes cannot be used for polyolefin coloring, otherwise it will cause serious migration. Dispersant: It mainly wets the surface of the pigment, which is conducive to the further dispersion of the pigment and stabilizes it in the resin. At the same time, it must have good compatibility with t...

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Problems solved by technology

[0003] In the production of masterbatch, the raw material is heated, and then the finished masterbatch is extruded by single-screw extrusion equipment, but the extrusion equipment will have the following disadvantages in actual production and use. The raw material is placed after proportioning In the feeding system, the feeding system continuously feeds materials, but because the raw material is in the form of powder, its density is too small to easily cause the problem of feeding blockage, so that there will be intermittent problems during the extrusion process of the masterbatch, and the existing The internal structure of the extrusion equipment is simple, the residence time of the hot-melt material is limited, and the effect of the internal hot-melt is not complete, resulting in coarse particles and air bubbles in the finished masterbatch, which seriously affects the quality of the product

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