Plastic extruding machine with intermediate filter

Abstract

The present invention discloses a plastic extruding machine with an intermediate filter. The plastic extruding machine comprises a hollow material cylinder, wherein a screw capable of rotating relatively to the material cylinder is arranged inside the material cylinder. One end of the screw is connected with a drive device. The material cylinder is respectively provided with a material inlet hopper and a die head for discharged material molding. The material cylinder is provided with an extrusion chamber and an after-filtration chamber, wherein the material inlet hopper and the extrusion chamber are communicated, and the die head is communicated with the after-filtration chamber. N filtration devices are arranged on the outer side of the material cylinder, wherein the N is an integer more than or equal to 1, the extrusion chamber and the after-filtration chamber are communicated through the filtration devices, and the N filtration devices are connected in parallel when the N is an integer more than or equal to 2. The plastic extruding machine of the present invention has the following advantages that: the plastic extruding machine is provided with more than two filtration devices to carry out alternate filtration, such that the plastic extruding machine can sustainably work so as to avoid waste of a large of raw materials due to frequent starting of the drive device and frequent debugging of the plastic extruding machine, save cost, reduce energy consumption, improve labor productivity, and prolong service life of the apparatus.

Description

technical field [0001] The invention relates to a plastic machine, in particular to a plastic extruder with an intermediate filter capable of continuous operation for a long time. Background technique [0002] At present, when plastic products manufacturers produce plastic products, due to the unavoidable small amount of impurities mixed in the raw materials, these impurities often block the filter screen of the plastic extruder and need to stop frequently to clean the filter screen. In this series of processes such as shutdown, cooling, disassembly, cleaning, installation, heating, and mold testing, not only a lot of working time and raw materials that have been heated and extruded are wasted, but labor productivity is reduced and energy consumption is increased. , greatly increase the manufacturing cost of plastic products, but also bring a heavy workload to the operators and increase the labor intensity of the operators. Especially when utilizing recycled waste plastics ...

AI Technical Summary

Problems solved by technology

Because the patent uses three layers of filter screens to make a filter, which increases the filter resistance needlessly and consumes energy, and because the middle filter screen is blocked by the inner and outer filter screens, it is difficult to clean. When the middle filter screen is blocked, the filter can only Disposal, resulting in waste

And this invention only prolongs the time interval for cleaning the filter by increasing the number of filters, and cannot fundamentally solve the defect that the plastic extruder shuts down to remove and wash the filter screen

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