Multifunctional wood-plastic composite material one-step method extruder

Abstract

A novel multifunctional wood-plastic composite material one-step method extruder is provided. A motor is connected with a twin-screw gear distribution box and a speed-adjusting speed-varying box respectively through a gear speed-varying box and an extending transmission shaft; the gear distribution box is connected with a twin-screw granulator; a material mixing device is connected with the twin-screw granulator through a twin-screw feeder; a master batch feeding device is connected with the twin-screw granulator; a connecting barrel is connected with the twin-screw granulator and a single-screw extruder; the single-screw extruder is connected with the speed-adjusting speed-varying box; all devices are connectedly arranged on a machine base. The extruder is mainly used for extrusion processing of a wood-plastic composite material and composite materials having similar properties, can also be used just for granulation, can complete production by the one-step method after raw materials are mixed, has high efficiency, and saves energy; the extruder completely avoids friction damage of screws and screw tubes, thereby improving the usage usefulness of equipment; the extruder allows extrusion processed products to have various wood imitation patterns; and the extruder can be applied to composite materials with various systems and much extrusion capacity.

Description

technical field [0001] The invention relates to an energy-saving and high-efficiency extrusion equipment produced by a multifunctional wood-plastic composite material by a one-step method. Background technique [0002] Wood-plastic composite material is a new type of material mainly made of plant fiber and waste plastic. As a new, environmentally friendly, low-carbon new material with typical circular economy characteristics, it is in a period of vigorous development in China. Due to the extensive use of plant fiber raw materials such as crop straw and agricultural and forestry miscellaneous materials, the entire industry enjoys the reputation of "afforestation in places without mountains and rivers". However, as a new material that has just been developed in the past 5-6 years, the existing extrusion processing equipment is improved from plastic processing equipment. The wood-plastic composite material system can be divided into: polyolefin system, polyvinyl chloride syst...

AI Technical Summary

Problems solved by technology

This process has the following defects: 1. After the raw materials are mixed and granulated, they must wait until they are cooled before entering the next process, so that the storage in the process and the reheating in the next process form a waste of resources and energy; The plastic composite material has poor melting fluidity, and a high gradient pressure is generated on the screw and barrel during processing, causing friction between the screw and the barrel, which makes the wear of the screw and barrel particularly serious, which is 5-6 times that of ordinary plastic processing, significantly Reduce the efficiency of equipment use; 3. The processing equipment of the three systems have their own limitations, cannot be used interoperably, and do not have universality;

[0003] Although there is also a one-step process that connects or combines two types of equipment, it is only effective for products with a fixed raw material system and a fixed extrusion volume. The cost of the equipment is high, the manufacturing is complicated, and the versatility is low.

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