A flat die pellet machine

Abstract

The invention discloses a flat-mold granulator which consists of a material bucket, a case, a working assembly, a main shaft assembly and a transmission assembly. According to the flat-mold granulator, working pressing force is directly transferred to a mold plate through a thrust bearing, and the case does not suffer from the pressing force, so that the wall thickness of the case can be reduced; moreover, a centripetal thrust bearing is directly arranged below the mold plate, so that the suspension length of the upper part of the main shaft is reduced, the working stability is facilitated, two bearings are not needed to be arranged below the case, and the height of the case can be reduced, therefore, the wall thickness of the case is reduced, the height is reduced, the overall height of the granulator is reduced, the mounting space is reduced, the amount of a metal material is reduced, and the production cost of the overall machine is lowered.

Description

Technical field: [0001] The invention relates to the field of agriculture and forestry, in particular to a flat-die pellet machine, which is especially suitable for extrusion molding of straw and sawdust. Background technique [0002] Agricultural and forestry waste can be used as renewable energy through pellet machine compression molding, which has broad development prospects. As a commonly used molding machine for agricultural and forestry waste compaction, the moving roller flat die pellet machine has a simple structure and strong material intake capacity. Due to the high quality of pellet molding, it is widely used in cold pressing of biomass pellets. [0003] In the existing moving roller type flat die granulator, the thrust bearing is installed below the cabinet, and the compression force generated by tightening the compression nut above the pinch wheel shaft is transmitted to the thrust bearing through the pinch wheel shaft, pinch wheel, template, and cabinet during ...

AI Technical Summary

Problems solved by technology

In the process of pellet pressing, the working compacting force is very large (according to the size of the template, the compacting force is different. For a template with a diameter of 320mm, the compacting force is about 30 tons, and for a template with a diameter of 430mm, the compacting force is about 40 tons. Left and right), the load-bearing components such as the chassis have a large wall thickness and height, so the chassis uses more materials and the manufacturing cost is high. At the same time, it also causes the overall size of the pellet machine to be large, and the required installation space increases accordingly

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