Energy-saving self-traction strand pelletizer for plastic extruder

Abstract

The invention discloses an energy-saving self-traction strand pelletizer for a plastic extruder, which comprises a metal machine frame, a pelletizing chamber and a pellet collecting device, wherein a toothed blade slot is axially arranged on the cutter shaft of a pelletizing cutter in the pelletizing chamber, the teeth of the blade slot are distributed uniformly and each tooth is arranged at an acute angle to the radius of the cutter shaft at the position of the tooth; and one end of the cutter shaft is supported by cambered bearings on two sides of the pelletizing chamber and the other end of the cutter shaft is connected with a motor through a driving part. The pelletizer has the advantages that: a self-traction structure is instead of the traditional traction device is adopted, the vehicle structure is simplified, the cost is reduced and energy is saved; the air flow in the pelletizing chamber is increased to replace the traditional cooling system, so environmental protection and energy conservation are realized; and the pelletizing blade can be replaced independently, so production and maintenance costs are reduced. The pelletizer is suitable to be used as an energy-saving self-traction strand pelletizer for the plastic extruder.

Description

technical field [0001] The invention belongs to the field of plastic processing machinery, in particular to an energy-saving self-drawn strand pelletizer for plastic extruders. Background technique [0002] The granulation methods of the plastic extruder mainly include strand cutting (cold cutting) and die surface cutting (hot cutting). The strand cutting means that the strands extruded from the extruder are cooled by a water tank or conveyed The strips are cooled in the air, and the cooled strips are cut into 2-5mm particles in a pelletizer. [0003] Now the general granulator is a traction granulator with a traction rubber roller device. The transmission shaft of the granulator is linked with the traction roller of the traction device through the linkage part, driving the traction roller to rotate, and the traction roller pulls the material strip into the granulator Machine pelletizing, as the Chinese invention patent application whose publication number is CN101138870A,...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing strand granulator has the following disadvantages: the granulator always works continuously during the production process of the enterprise, once the traction device fails, the granulator cannot Normal feeding affects production, and the traction device has a complex structure and troublesome maintenance, which further affects the normal operation of the production line; the cooling of traditional pelletizers is generally equipped with a blower to use compressed air to cool and dehumidify, which consumes a lot of energy; traction The mechanical structure of the type is complex, and the production cost and maintenance cost are relatively high

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