Mold and method for producing open-mouthed concrete box

A concrete and mold technology, which is applied in the direction of molds, manufacturing tools, ceramic molding machines, etc., can solve the problems that the accuracy of the error size of the geometric shape of the box is difficult to control, the mold can only produce the same, and the production efficiency is not high.

Inactive Publication Date: 2006-08-02
李克翔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The form of this inner mold is simple, but it is still very difficult to demould under the action of cement bonding and friction and vacuum adsorption (especially when the mold shell size is relatively large)
In addition, due to the taper of the formwork, it is impossible to make boxes with different heights but the same plane size
There are also combined internal mold forms, and thes

Method used

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  • Mold and method for producing open-mouthed concrete box
  • Mold and method for producing open-mouthed concrete box
  • Mold and method for producing open-mouthed concrete box

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Embodiment Construction

[0020] In order to illustrate the features of the technical solution more clearly, the present invention will be further elaborated below.

[0021] (1) Assemble the mould, the steps are as follows:

[0022] (1) Put all parts of the inner mold, the inner mold shell 1, the bracket 2, and the cross insert 4 in place, and put the inner lining 9 on it.

[0023] (2) Four mold pieces 7 are connected together on the periphery of the inner mold, and now the whole inner mold forms a whole by the extruding action of the elastic rubber strip on the outer mold piece, like this, the whole mold assembly has just been completed.

[0024] Note: Bolts, return pins for building steel formwork, or special connectors can be used to connect the four outer formwork pieces. The dimensional accuracy and geometric shape accuracy of the concrete box can be well controlled by the connections between the four outer formwork pieces.

[0025] (2) Concrete is poured in the mould, and cured to make it reach...

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Abstract

The present invention is the technological scheme of mold and method for producing open-mouthed concrete box and solves the technological problems the smooth demolding of the inner formwork inside the open-mouthed concrete box and producing concrete boxes of different heights with the same mold. The mold features that the inner mold comprises four shutterings and four rack spliced together and has intervals between shutterings filled with rack and inserted sheets. The outer mold is also spliced with four formworks and has adjustable inserted strips to control the thickness of concrete box. During demolding, the inserted sheets are first withdrawn, the racks are then withdrawn, and the shutterings may be taken out easily.

Description

Technical field: [0001] The invention relates to the processing and manufacturing process of concrete prefabricated parts in the field of building construction, and the mold form used. technical background: [0002] At present, most of the molds for processing and making precast concrete boxes are still composed of two parts: an inner mold and an outer mold. Wherein the form of inner mold is generally a whole form shell, in order to facilitate demoulding, this form shell mostly makes certain taper. The form of this inner mold is simple, but under the bonding and friction of cement and vacuum adsorption, demoulding is still very difficult (especially when the size of the mold shell is relatively large). In addition, because the formwork has a taper, it is just impossible to make boxes with different heights but the same plane size. There are also combined internal mold forms, and these combined internal molds are mostly sheet units. Due to the limitation of their own struct...

Claims

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Application Information

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IPC IPC(8): B28B7/24B28B7/16B28B1/14
Inventor 李克翔
Owner 李克翔
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