Mechanical extruding machine

Abstract

The invention discloses a mechanical extruding machine. The mechanical extruding machine comprises a material bin, a die cavity, a pushing head and an adjusting mechanism, wherein the adjusting mechanism comprises a pressing strip, a pressing rod and an adjusting oil cylinder; the die cavity is mounted at a discharging port of the material bin, and an extruding chamber is arranged in the die cavity; the pressing strip is arranged in the extruding channel; one end of the pressing rod extends into the die cavity and is connected to the pressing strip, and the other end of the pressing rod is connected to a piston rod of the adjusting oil cylinder; and an adjusting oil cylinder body is mounted on a discharging plate. According to the mechanical extruding machine, the size of the die cavity isdynamically adjusted in order to maintain the inner pressure of the die cavity, and thus one die cavity can realize various biomass formation, and as a result, the extruding forming cost is decreased, and the extruding forming efficiency is improved; and meanwhile, when the temperature of the die cavity changes, the size of the die cavity can be dynamically adjusted to remain the inner pressure of the die cavity. Therefore, the whole biomass extruding forming production process is kept stable, and the extruding forming quality and output cannot be influenced by the change of raw materials andtemperature.

Description

technical field [0001] The invention relates to a mechanical extrusion machine, which belongs to the technical field of extrusion molding. Background technique [0002] Existing biomass extruders include a silo, a cavity installed at the outlet of the silo, and a pusher for pushing raw materials into the cavity for discharge. Once the cavity is selected, the extrusion process in the cavity will The channel size is fixed. In the biomass extrusion production process using the existing biomass extruder, it is necessary to ensure the consistency of the biomass raw material in the silo of the extruder. If the type of raw material to be extruded changes or fluctuates, even if the change does not Large, but it will also affect the quality and output of extrusion molding; in order to ensure the stability of extrusion molding, it is necessary to ensure the stability of the internal pressure of the die cavity of the extruder, and the stability of the internal pressure of the die cavi...

AI Technical Summary

Problems solved by technology

In the biomass extrusion production process using the existing biomass extruder, it is necessary to ensure the consistency of the biomass raw material in the silo of the extruder. If the type of raw material to be extruded changes or fluctuates, even if the change does not Large, but it will also affect the quality and output of extrusion molding; in order to ensure the stability of extrusion molding, it is necessary to ensure the stability of the internal pressure of the die cavity of the extruder, and the stability of the internal pressure of the die cavity refers to the specific structure The size of the extrusion channel of the mold cavity is fixed, and the size of the extrusion channel is in one-to-one correspondence with different raw materials

Therefore, the existing extruders are produced by using different raw materials corresponding to different die cavities. For different types of biomass, it is necessary to equip extruder die cavities of different sizes, which will not only increase the extrusion cost , and it will affect the extrusion production efficiency; at the same time, during the extrusion production process, due to the friction in the mold cavity, the internal pressure of the mold cavity will change, which will also affect the quality and output of biomass extrusion, thereby reducing the extrusion process. The capacity of the press and the quality of the extruded pellets, the service life of the cavity is not long

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