High-efficiency extruder

Abstract

The invention discloses a high-efficiency extruder which comprises a rack, a feeding device, a motor and a rotating shaft. The motor is arranged at one end of the rack and is connected with the rotating shaft through a coupling, a speed reducer is installed on the rotating shaft which penetrates through a stirring case, a heating case and an extrusion case from right to left in sequence, the feeding device is arranged on the stirring case and comprises a material drum, a hopper arranged at the top of the material drum and a discharge opening formed at the bottom of the material drum, the upper end of the hopper is connected with a feeder through a pipeline, and a feeding machine with a feeding function is arranged between the feeder and the pipeline. A stirrer in the feeding device can mix material granules evenly and slow down the speed of the material granules entering the material drum, the material drum is protected, the service life of the material drum is prolonged, impurities in the material granules are cleaned away through a filter layer and an adsorption layer, the hopper is connected with the feeder through the pipeline, and the feeding machine with the feeding function is arranged, so that material feeding is convenient for people.

Description

technical field [0001] The invention relates to the technical field of plastic processing equipment, in particular to a high-efficiency extruder. Background technique [0002] The extruder is a commonly used machine. Most of the extruders on the market are single-shaft mixing and extrusion, which has low efficiency, and the blade load is heavy, easy to break, affecting production efficiency, and the structure is more complicated; the traditional heating method is On the metal barrel of the extruder, an electric heater or a resistor is used as a heating ring to transfer heat to the barrel through contact conduction. The barrel reaches the required temperature, and only the heat close to the inner side of the barrel surface is transferred to the barrel, and most of the heat outside the electric heater or heating ring is lost in the air. Due to the serious heat loss, the temperature of the working environment rises, resulting in production The workshop is hot and stuffy; the s...

AI Technical Summary

Problems solved by technology

[0002] The extruder is a commonly used machine. Most of the extruders on the market are single-shaft mixing and extrusion, which has low efficiency, and the blade load is heavy, easy to break, affecting production efficiency, and the structure is more complicated; the traditional heating method is On the metal barrel of the extruder, an electric heater or a resistor is used as a heating ring to transfer heat to the barrel through contact conduction. The barrel reaches the required temperature, and only the heat close to the inner side of the barrel surface is transferred to the barrel, and most of the heat outside the electric heater or heating ring is lost in the air. Due to the serious heat loss, the temperature of the working environment rises, resulting in production The workshop is hot and stuffy; the second is that when the heater or resistor is heated, its temperature is very high and it is easy to oxidize, so the service life is short; the third is that the recovery time is too slow, the preheating and heat preservation effects are poor, the installation and replacement procedures are complicated, and the production efficiency is low. Low, high production cost, high power consumption; Fourth, the heating of the resistor, the damage to the resistor itself will be greatly increased after the power is too large, and the metal of the resistor itself will volatilize rapidly at high temperature, rapidly age and fail, so the resistor needs Unscheduled replacement increases production costs and reduces production efficiency; in addition, the biggest disadvantage of resistance heating is the low power density, which cannot be adapted to some high temperature occasions.

[0003] The feeding device is used to store clinker granules and wait for heating and extrusion. Since the granules in the barrel sink by their own weight and enter the heating screw of the injection molding machine, the position of the barrel of the extruder is set at the top of the injection molding machine. At the highest point, this increases the labor intensity of the feeding process. Therefore, the existing extruder barrel needs to be improved urgently; and when the particles are added to the hopper at the top, they directly enter the inside of the barrel without buffering. It will cause damage to the barrel. Secondly, there may be some impurities in the particles, which cannot be selected in time during the addition process.

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