vertical granulator

Abstract

The invention relates to the field of manufacturing equipment, in particular to a vertical granulator. The vertical granulator comprises a fly cutter used for conducting cutting. The fly cutter comprises a flat and straight installing part, a cutter body obliquely arranged on the side edge of the installing part, and a blade arranged at the bottom of the cutter body. The lower end face of the cutter body is located below the lower end face of the installing part. The installing part, the cutter body and the blade are integrally formed. The plane where the blade is located is perpendicular to the plane where the cutter body is located. A first included angle is formed by the face, close to the outer side, of the cutter body and the face where the blade is located. A second included angle is formed by the face, close to the inner side, of the cutter body and the face where the blade is located. The first included angle ranges from 8 degrees to 12 degrees, and the second included angle ranges from 25 degrees to 35 degrees. According to the vertical granulator, the fly cutter circumferentially moving is adopted, the fly cutter is perpendicular to the material strip conveying direction, and a product obtained through cutting is attractive in appearance and free of inner arc tip, long in service life and high in cutting precision.

Description

technical field [0001] The invention relates to the field of manufacturing equipment, in particular to a vertical granulator. Background technique [0002] Nylon sand is made of polyamide fiber (POLYAMIDE), and its shape is translucent milky white crystalline thermoplastic polymer particles. Due to its certain toughness, non-machining, and no damage to the product to be processed during use, etc. , Widely used in sandblasting and shot blasting equipment. [0003] Nylon sand is a granular product formed after nylon thread is granulated by a special granulator. In the granulator of the prior art, the purpose of granulation is achieved by continuously rolling and shearing granular or strip-shaped plastics through the hob. The performance of the hob is one of the key factors to ensure whether the granulator can produce normal slices. . At present, among the pelletizer hobs that appear on the market, some blades and the cutter shaft are designed in one piece, and some blades a...

AI Technical Summary

Problems solved by technology

[0004] On the one hand, the blade is a hob, and the cutting direction of the blade forms an acute angle with the conveying direction of the material strip. The movement of the blade is arc-shaped, and the rolling cutting principle is adopted to cut the material strip into granular products. The cut surface of the product is an arc-shaped cut surface. It is an inner arc, and the other side is an outer arc, which makes the appearance of the product not beautiful, and the inner arc tip of the cut surface is easy to crack, resulting in a short service life of the product

In the second aspect, the hob often breaks during use, and the blade and the cutter shaft are an integrated hob. There are multiple blades and cutter shafts on one hob, and any blade can no longer be used after chipping. The entire hob needs to be replaced, otherwise the product quality will be affected; if any part of the large blade with separate blade and cutter shaft is chipped, the entire large blade needs to be replaced, otherwise the product quality will also be affected and the cutting accuracy will be reduced

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