Blind hole brick extruder

Abstract

The invention discloses a blind hole brick extruder, and aims to provide an extruder which is simple in structure and does not leak mortar during masonry. The key points of the technical scheme are asfollows: two rollers of which the outer edge circumferences are provided with a plurality of annular grooves and annular raised lines are arranged in parallel, the width sizes of the concave groovesare greater than the width sizes of the raised lines, the annular raised lines are embedded in the annular grooves, a transmission shaft is arranged in the center of each roller, transmission wheels sleeve the two ends or one end of each transmission shaft, storage hoppers are arranged at the upper positions of the inner sides of the two rollers, and the lower sides of the two rollers are respectively attached to scraper edges corresponding to the annular grooves and the annular raised lines in shape. A core frame, a core rod and a big-end-down conical core head are arranged in a machine opening, the small core rod extending out of the conical core head extends out of the machine opening, the core frame is connected with the lower end top head of the upper pull rod into a whole, and a pullwire is hung at the upper end top head of the upper pull rod and is connected with an eccentric sleeve on a central flat shaft of a certain lower roller in a traction manner. During operation, a blank strip pushes the roller and the eccentric sleeve downwards to operate to do work.

Description

technical field [0001] The present invention relates to the manufacture of semi-finished bricks and tiles in building materials, more precisely and more specifically relates to a kind of adobe-making equipment for preventing hollow bricks from being made into closed holes due to the disadvantage of easily leaking mortar in wall-laying. Background technique [0002] Compared with solid bricks, hollow bricks have many advantages such as saving raw materials, reducing fuel, reducing wall weight, good thermal insulation and easy transportation, etc., which are advocated by the state and preferred by enterprises. Nowadays, the production of hollow brick tires generally uses a screw extruder. First, it is pressed into a hollow billet and then divided into a single brick. The principle of extruding a hollow brick with a screw extruder is as follows: figure 1 with figure 2 Shown: the main shaft 6 connected to the cylinder liner 5 of the extruder driven by power, the spiral tube 4,...

AI Technical Summary

Problems solved by technology

[0003] Its shortcomings are due to the existence of holes. First, the extrusion section is greatly reduced and the energy consumption is correspondingly increased, that is, it must be equipped with a larger power; second, it is easy to leak mortar into the holes during masonry, so that the holes are reduced or disappeared. Waste mortar; third, due to the existence of holes, the raw material must have high plasticity and the air in the raw material must be extracted, otherwise it will be difficult to form

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