Diameter-variable pitch-variable hard-plastic extruding rimer group of building material machine extruder

Abstract

A hard plastic extrusion reamer group with variable diameter and variable pitch of building material machinery extruder is composed of multi screw reamers and reamer axis. The multi screw reamers are equipped on the reamer axis in turn. The start point of each section of the screw reamer vane tallies with the adjacent section vane, which forms the coherent reamer group. The special structure design and high antiwear properties of the reamer group can suit the brick-making techniques requirements of low ductility non-clay materials. The allowable extrusion pressure>=4mpa which is improved by 50% than normal reamer. Its service life is 8-10 times of the normal reamer and the appearance and quality of the adobes are improved obviously.

Description

technical field [0001] The invention belongs to the field of physical forming machinery, especially brick and tile machinery manufacturing in building material machinery. Background technique: [0002] As we all know, in the sintered brick production line, the screw extruder is the key to the whole set of mechanical equipment, and the spiral knife in the extruder is the key to the key. Not only the specification, model, production capacity and extrusion pressure of the extruder The main technical parameters are determined by it, and the efficiency of the whole production line, the quality of the product, the size of the energy consumption, the length of the service life, and the economic benefits of the brick factory are all closely related to the spiral reamer. Relationship. [0003] At present, the spiral reamer used in the brick extrusion machine used in my country's brick and tile industry is basically the technical model in the early stage of reform and opening up. It ...

AI Technical Summary

Problems solved by technology

However, with the implementation of the national wall reform policy, the work of "prohibiting solid and restricting stickiness" and energy saving and consumption reduction has been fully carried out. Coal gangue, shale, fly ash and industrial waste have been used as the main raw materials for brick making, with thin walls, high strength and large cavities. High efficiency, good thermal insulation performance has become the requirement of the times for brick products, thus promoting the technological progress of the brick and tile industry, one-time code firing in tunnel kiln, high-pressure full-hard plastic vacuum extrusion and large-scale, high-yield, fully automatic New technologies, new processes, and new equipment such as electronically controlled production lines have been gradually adopted. The traditional spiral reamer is far from meeting the requirements of modern brick and tile production in terms of performance, strength, adaptability to non-clay raw materials, and service life. Requirements restrict the development of brick extruder technology

[0004] At the same time, the equidistant and uniform-diameter extruding reamers of extruders in the existing building materials technology field are not only unsuitable for building materials such as coal gangue, shale, fly ash and industrial waste residues with low plasticity, and the screw and reamer shaft adopt Sliding flat key connection, easy to loose and reduce accuracy

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