Segmented splicing type granulator hobbing cutter

Abstract

The invention discloses a segmented splicing type granulator hobbing cutter. The segmented splicing type granulator hobbing cutter comprises a cutter shaft and a plurality of hobbing cutter segments arranged on the outer side of the cutter shaft. Each hobbing cutter segment comprises a cutter ring, short blades detachably fixed to the outer wall of the cutter ring, and locking pieces used for fixing the short blades, wherein the locking pieces are provided with clamping parts, and the short blades are provided with limiting parts corresponding to the clamping parts. A plurality of cutter grooves distributed in the circumferential direction are formed in the outer wall of each cutter ring and axially penetrate the front surface and the rear surface of the corresponding cutter ring, locking holes for containing the locking pieces are formed in the front surface and the rear surface of each cutter ring, one side of each locking hole communicates with the corresponding cutter groove, and the short blades enter the cutter grooves through the clamping parts to be matched with the limiting parts to be detachably fixed into the cutter grooves. The multiple cutter rings penetrate through holes to be detachably connected with threaded holes in a screw joint manner through connecting bolts. The multiple short blades are connected to form long blades. According to the segmented splicing type granulator hobbing cutter, the blades are not prone to breaking, and the service life of the cutter is long; and meanwhile the single blades can be replaced, resource waste is avoided, and the using cost is reduced.

Description

technical field [0001] The invention relates to the field of granulator equipment, in particular to a hob for a segmented and spliced ​​granulator. Background technique [0002] The granulator achieves the purpose of granulation by continuously rolling and shearing the linear plastic extruded by the plastic extruder through the hob. The performance of the hob is one of the key factors to ensure whether the granulator can produce slices. At present, most of the granulator hobs on the market are designed with an integrated blade and cutter shaft. Each blade is welded in one piece. Such blades are prone to chipping or wear during use, while the blade and the cutter shaft are integrated. For hobs, any one of the blades can no longer be used after chipping or wear, otherwise it will affect the product quality, which leads to the short service life of all the current integrated hobs (moving knives), generally 3-6 months, After the blade wears out, the cutter body is also scrapped...

AI Technical Summary

Problems solved by technology

At present, most of the granulator hobs on the market are designed with an integrated blade and cutter shaft. Each blade is welded in one piece. Such blades are prone to chipping or wear during use, while the blade and the cutter shaft are integrated. For hobs, any one of the blades can no longer be used after chipping or wear, otherwise it will affect the product quality, which leads to the short service life of all the current integrated hobs (moving knives), generally 3-6 months, After the blade is worn out, the cutter body is also scrapped

And this will cause serious waste of resources and increase production costs.

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