Novel four-roll grinding device

Abstract

The present invention relates to the field of plastic processing equipment, in particular to a novel four-roll grinding device, characterized in that: the upper left grinding roll and the upper right grinding roll are arranged in pairs, the lower left grinding roller and the lower right grinding roller are arranged in pairs, the The upper part of the lower left grinding roller is arranged tangentially to the lower part of the upper left grinding roller, the upper part of the lower right grinding roller is arranged tangentially to the upper right grinding roller, and the hopper is fixed directly above the upper left grinding roller and the upper right grinding roller, The lower end of the left feed chute is fixed above the left material receiving trough and the upper end is fixed with a left scraper, the left scraper is attached to the lower left grinding roller, and the lower end of the right material guide chute is fixed above the right material receiving chute and Its upper end is fixed with a right scraper, and the right scraper is attached to the lower right grinding roller, and the upper end of the middle guide groove is fixed below the left lower grinding roller and the right lower grinding roller and its lower end is fixed above the left receiving chute. The grinding speed of the four-roll mill in the present invention is relatively fast.

Description

technical field [0001] The invention relates to the field of plastic processing equipment, in particular to a novel four-roll grinding device. Background technique [0002] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It is commonly known as plastic or resin. It can freely change its composition and shape. , Colorants and other additives. For powdery additives with coarser particles or easy to agglomerate, they must first be refined with a plasticizer and added as a slurry. The general ratio of additives to plasticizers in the refining formula is about 1:1, and the slurry fineness index 60-80μm. The existing refining equipment is a three-roll mill, and its structure is as follows: figure 1 As shown, the three grinding rollers are parallel and the center line of the grinding rollers is arranged in a straight line. When in use, the hopper feeds the material between the left grinding ro...

AI Technical Summary

Problems solved by technology

The existing refining equipment is a three-roll mill, and its structure is as follows: figure 1 As shown, the three grinding rollers are parallel and the center line of the grinding rollers is arranged in a straight line. When in use, the hopper feeds the material between the left grinding roller and the middle grinding roller, and passes through the left grinding roller, the middle grinding roller and the middle grinding After being squeezed between the roller and the right grinding roller, it is discharged along the right grinding roller, and the grinding speed of the material is relatively slow

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