Extrusion inter-granulator for plastic recycling

Abstract

The invention discloses a squeezing pre-grain-cutting machine for plastic recovery. The squeezing pre-grain-cutting machine comprises a rack, a squeezing barrel, a heating and cooling device and a pre-grain-cutting device, wherein an upstream bearing pedestal and a downstream decompression seal are arranged on the rack, two ends of the squeezing barrel are fixed between the upstream bearing pedestal and the downstream decompression seal, a feeding hole is formed in the squeezing barrel, an extruding screw rod is arranged between the upstream bearing pedestal and the downstream decompression seal, the extruding screw rod is positioned in the squeezing barrel and is connected with a screw rod power device, the heating and cooling device is arranged at the downstream of the squeezing barrel, a water filter hole is formed in the upstream section of a squeezing barrel body, a discharge hole is also formed in the downstream section of the squeezing barrel body, a downstream decompression sealing base comprises a decompression sealing barrel and a sealing bearing pedestal, the decompression sealing barrel stretches into the downstream opening of the squeezing barrel, an optical axis part is arranged at the downstream of the extruding screw rod, the optical axis part is arranged in the decompression sealing barrel to be in clearance fit with the decompression sealing barrel, the pre-grain-cutting device is arranged on the rack and is located at the downstream end of the squeezing barrel, and the pre-grain-cutting device comprises a grain cutter and a grain cutter power device. The squeezing pre-grain-cutting machine has high working efficiency and long service life.

Description

technical field [0001] The invention relates to the field of plastic recycling, in particular to an extruder and granulator for plastic recycling. Background technique [0002] The discharge port of the currently used extruder pelletizer is set on the bearing seat at the end, and many problems have been exposed during the use process: 1) Due to the continuous extrusion of the material by the extrusion screw in the extrusion drying cylinder, The bearing seat is subjected to a large extrusion force and is easily damaged; 2) The material in the squeeze cylinder has begun to gradually heat up under the continuous extrusion friction of the extrusion screw, and the temperature of the material at the discharge port reaches more than 100 degrees. The temperature of the bearing seat is very high, and the lubricating oil in the bearing is easy to fail due to the high temperature, and it cannot lubricate the bearing, resulting in easy damage to the bearing and greatly shortened service...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: to provide an extrusion pre-granulator for plastic recycling. The problem

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