Automatic opening and closing combined die for prefabricated reinforced concrete stair

Abstract

The invention discloses an automatic opening and closing combined die for a prefabricated reinforced concrete stair. The die comprises a guide rail, wherein a plurality of stair lower dies and stair upper dies are sequentially and circularly arranged on the guide rail from left to right; a concrete stair bottom plate is arranged at the bottom, of the part, between the stair lower dies and the stair upper dies; the stair lower die at the leftmost end is subjected to die closing, pouring and die unloading, and is fixed on the ground; the stair lower dies, the concrete stair bottom plate and thestair upper dies are movably arranged on the guide rail, concrete stair side blocking plates are arranged at the two ends of the concrete stair bottom plate, and the concrete stair side blocking plates are arranged on the stair lower dies or the stair upper dies; an opening and closing mechanism and an opening and closing guide mechanism are arranged on the two sides of the stair lower dies and the stair upper dies. The die has the advantages of reasonable structural design, one-time forming, high production efficiency, good machining quality, high mechanical degree and the like.

Description

Technical field: [0001] The invention relates to the technical field of concrete stairs, in particular to an automatic opening and closing combined mould for prefabricated reinforced concrete stairs. Background technique: [0002] Stairs are components used for vertical traffic between floors in buildings. For the production of stairs, cast-in-place concrete is traditionally used to produce stairs. The traditional method not only has a long construction period, a poor working environment, and the concrete cannot be formed at one time, but also easily cause steps. Uneven, the ground is not straight, it needs to be repaired, and the maintenance effect is poor. Therefore, prefabricated concrete structures (including precast concrete stairs) are the development trend of the construction industry. The use of precast concrete stairs not only saves time and effort, but also has good processing quality and uniform standards. However, the existing molds or devices for producing precast c...

AI Technical Summary

Problems solved by technology

However, the existing molds or devices for producing prefabricated concrete stairs are relatively backward and cannot meet the production requirements

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