A Blade Compensation Technology of Underwater Two-axis Linkage Pelletizer

Abstract

The invention discloses a blade compensation technology for an underwater two-shaft linkage dicing cutter. According to the underwater two-shaft linkage dicing cutter, in the grain-sized dicing process, a molten polymer is extruded out of a die head, and meanwhile a motor drives a transmission shaft and a connecting transition shaft through a synchronous belt; the connecting transition shaft drives a cutterhead shaft, a cutterhead and a blade to make coaxial high-speed rotation through a connecting shaft slider, and the blade corresponds to a discharging outlet to perform rotary cutting on extrusion water cooling forming raw materials; the blade rotates at a high speed for cutting, and meanwhile an axial pushing device drives an axial pushing shaft to make axial displacement under the telescoping action of a piston rod; and axial displacement force of the axial pushing shaft is sequentially transmitted to the cutterhead shaft, the cutterhead and the blade, and thus the rotating surface of the blade and the discharging outlet of the die head are flatly attached for rotary cutting. By means of the blade compensation technology, power and mechanism cutting are set separately and are connected through the synchronous belt; axial telescoping can be achieved through the piston rod, and abrasion of the blade and the die head can be compensated for in time; and the failure rate is reduced, maintenance is made convenient, and the service life is prolonged.

Description

technical field [0001] The invention relates to pelletizing equipment for processing elastic polymeric materials, in particular to a blade compensation process for an underwater two-axis linkage pelletizer. Background technique [0002] At present, the domestic chemical fiber, engineering plastics, elastomers and other polymerization industries are mainly processed and pelletized by underwater pelletizers. The polymerization and granulation production line mainly includes a series of equipment such as reaction kettle, gear pump, screen changer, reversing valve, template, pelletizer, dryer and vibrating screen, which can complete the polymerization, extrusion, filtration, A series of functions such as pelletizing, cooling, drying and screening. [0003] The production process is roughly as follows: the molten polymer produced by polymerization in the reactor is transported by the gear pump, filtered by the screen changer, discharged at the reversing valve and switched to the...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome that the pelletizing equipment of the existing elastomer processing equipment is a motor with a floating rotor or a hollow shaft, which requires special customization, high cost, and inconvenient replacement and maintenance in the later stage; and because the axial displacement auxiliary mechanism is from Pushing from the side, but the structure is complex, there may be eccentric loads, stuck phenomena, and high equipment failure rate. Through reasonable design, a blade compensation process for underwater two-axis linkage granulator is provided. The power and mechanism cutting of the present invention Set separately, through the connection of the timing belt, the transmission ratio of the timing pulley can be adjusted, and different types of motors can be replaced according to the needs; while the cutting blade rotates at high speed for cutting, the cylinder expands and contracts axially through the piston rod, and the wear of the blade and the die head Make timely compensation; the structure is relatively simple, which reduces the cost of equipment, improves the selection of components, reduces the failure rate, facilitates maintenance, ensures safe production, and prolongs the service life

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