Mold for manufacturing precast pile with rectangular cross section

Abstract

The invention belongs to the technical field of construction, and relates to a mold for manufacturing a precast pile with the rectangular cross section. The mold comprises an upper mold assembly, a lower mold assembly and a side mold assembly. One side of the upper mold assembly and one side of the lower mold assembly are detachably connected with the two sides of the side mold assembly correspondingly. The other side of the upper mold assembly and the other side of the lower mold assembly are detachably connected with each other. A mold cavity with the rectangular cross section is defined by the upper mold assembly, the lower mold assembly and the side mold assembly. A material distribution structure for making concrete enter the mold cavity is arranged on the upper mold assembly. By means of the mold, mold assembling and demolding are convenient, and the pile manufacturing precision is high.

Description

technical field [0001] The invention belongs to the technical field of construction equipment and relates to a mold, in particular to a mold for making a prefabricated pile with a rectangular cross section. Background technique [0002] The factory assembly line production of precast concrete rectangular piles requires special steel molds. Concrete density is usually 2400kg / m 3 Around, the steel density is 7850kg / m 3 , The reinforced concrete product itself has a great weight. In the factory production line, the steel mold loaded with semi-finished piles to be transported and hoisted between various processes has a mass of more than ten tons. Especially, when producing prestressed concrete square piles, it is necessary to use tension The drawing machine exerts a pressure of up to 100 tons on both ends of the mold. It also requires the mold to be rigid and not deformed. It can still guarantee the external size of the product after multiple uses. It has higher requirements ...

AI Technical Summary

Problems solved by technology

However, the prefabricated concrete rectangular pile mold in the prior art cannot meet the requirements of the above two aspects at the same time

Difficulty in demoulding is a problem that has not been solved for a long time in the steel prefabricated concrete rectangular pile mold used in assembly line production. It directly brings two hazards: first, repeated lifting and demoulding may easily cause cracks in the concrete square pile , seriously affect product quality

Second, steel molds weighing several tons are demoulded and fall to the ground after hoisting, which not only damages the mold itself, but also damages the ground of the factory building; at the same time, the serious flying dust and noise pollution caused by the falling steel molds damage the health of workers

[0004] However, the side formwork and the bottom formwork in this mold are connected in a detachable manner. When the side formwork is installed, the bottom formwork needs to be hoisted to a certain height. In addition, there is no support on the top of the two side formworks, which easily leads to the expansion of the side formwork. Deformation, thereby reducing the accuracy of pile making

Images