Prestressed tube tensioning mold

A prestressed tube and tensioning technology, applied in the direction of molds, etc., can solve the problems of high damage rate of screw and clamping screw fittings, high labor intensity for mold assembly and disassembly, and low utilization rate of molds, so as to reduce labor intensity and time. The effect of ensuring effective travel and reducing labor intensity

Inactive Publication Date: 2010-09-22
SHANGHAI ZHONGJI PILE IND
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Problems solved by technology

[0003] The above-mentioned molds have the advantages of high molding rate of centrifugal concrete products and stable product performance, etc.; but there are also many shortcomings, such as: high labor intensity and long time for assembling and disassembling the mold, high damage rate of screw rods and mold clamping screws, and mold utilization. Low efficiency, etc., especially for centrifugal products with a large amount of concrete, the disadvantages of the mold are more obvious

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[0028] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0029] see Figure 1-Figure 2

[0030] The mold includes an upper mold and a lower mold, and the upper mold and the lower mold are fastened to each other, and an inner mold is also arranged inside the mold formed by the upper and lower molds. The material of the mold can be metal material, high molecular polymer material, metal and polymer composite, etc.; its material has the characteristics of high strength, good high temperature stability, and alkali corrosion resistance; it can break the singleness of centrifugal concrete mold material Limitations, reduce production costs, improve mold technical parameters, eliminate local deformation caused by mold assembly, etc. A variety of concrete products refer to the shape of the longitudinal cross-...

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Abstract

The invention discloses a prestressed tube tensioning mold, which comprises an upper mold and a lower mold. The upper mold and the lower mold are mutually fastened; and an inner mold is also arranged inside a mold formed by the upper mold and the lower mold. A tensioning mechanism is arranged at one end of the mold, and a tensioning fixed plate is arranged at the other end of the mold. The prestressed tube tensioning mold is characterized in that: the tensioning mechanism comprises a tensioning screw rod connected with a tensioning draw plate; the tensioning draw plate is connected with a tensioning connecting plate through a tensioning connecting piece; and the tensioning connecting plate is connected with concrete centrifugal products. The prestressed tube tensioning mold can effectively reduce the labor intensity, effectively suppress slurry leakage of a pile head, prolongs the service life of the screw rod and die assembly screws, guarantees the verticality of the screw rod and the section of the concrete centrifugal products, prevents the screw rod from inclining, reduces the die clamping probability and whole prestress non-uniformity of the pile, avoids steel mould damage and fittings damage during mold removal, avoids the damage of the concrete centrifugal products simultaneously, and improves the working efficiency.

Description

technical field [0001] The invention relates to a molding tool for various concrete products in the construction field, in particular to a prestressed pipe stretching mold for centrifugally formed concrete products. Background technique [0002] There are many centrifugal concrete products in the construction field, such as pipe piles, poles, square piles, bamboo piles and ribbed piles. They all rotate at a high speed on a centrifuge through a centrifugal mold, so that the concrete in the mold performs a high-speed centrifugal movement, and is made into a concrete product with a round hole in the center, and its appearance and shape are determined by the inner membrane structure of the mold. The centrifugal process is very mature and has entered large-scale industrial production. [0003] The above-mentioned molds have the advantages of high molding rate of centrifugal concrete products and stable product performance, etc.; but there are also many shortcomings, such as: hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B21/80B28B21/82
Inventor 张强朱建舟
Owner SHANGHAI ZHONGJI PILE IND
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