Centrifugal concrete pile die production process

Abstract

The invention relates to a production method of centrifugal concrete pile form, which comprises the following steps: firstly, prepare required components, including tongue and groove plate, pipe wall, longitudinal reinforcement, ring reinforcement, loop, bolt, end plate, running wheel ; Then, the parts are connected in order and spot welded as a whole to obtain a half-piece steel mold; finally, the half-piece steel mold and the whole mold are finished, and the whole mold is turned to obtain a finished product. In the method of the present invention, the tongue-and-groove plate and the pipe wall are directly cold-drawn to the precise size by the cold-drawing equipment and the mold, which saves materials, saves the process, and improves the quality; the end plate and the running wheel are all bent and formed by the press. It is made to save steel; the overall turning ensures the overall coaxiality of the steel mold. The invention saves steel, saves procedures, saves materials (welding rods, grinding wheels) and produces higher quality products.

Description

(1) Technical field: [0001] The invention relates to a production method of a centrifugal concrete pile form, in particular to a production method of a centrifugal concrete pile form for manufacturing prestressed concrete piles for construction. (two) background technology: [0002] Prestressed centrifugal concrete piles for construction include the most common prestressed centrifugal pipe piles and the most recent prestressed centrifugal square piles. Both of them are produced by rotating the centrifugal concrete pile form at a high speed on the centrifuge, so that the concrete contained in the centrifugal concrete pile form moves with the high-speed centrifugal movement of the mold to produce it, because it is convenient for large-scale industrial production and the produced prestressed concrete The pile has good compactness, high strength, and strong bearing capacity, and it has increasingly replaced the traditional production of concrete piles cast by vibration method. ...

AI Technical Summary

Problems solved by technology

[0035] 2. The quality of mold products is not satisfactory:

[0036] 1) The plane trapezoidal groove of the tongue and groove board is planed and processed by a planer, and the processing accuracy is poor. leakage;

[0037] 2) The whole set of steel molds is a single-section steel mold obtained after single-section turning, which is connected one by one to form a complete set of steel molds. The overall coaxiality of the steel molds is poor, and the molds are easy to jump when the concrete piles are produced by a centrifuge. continue to produce

[0038] 3) The running wheel is a cast steel running wheel, which may have sand holes, which will affect the overall strength of the mold