CN2761756Y

CN2761756Y - Construction foamed plastic mould

Info

Publication number: CN2761756Y
Application number: CN 200420037067
Authority: CN
Inventors: 杨仲春
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-21
Filing date: 2004-06-21
Publication date: 2006-03-01
Anticipated expiration: 2014-06-21

Abstract

The utility model relates to a construction foamed plastic mould, which belongs to a forming mould formed when concrete is cast. The outer layer of the construction foamed plastic mould is in a circum-box body structure, wherein the circum-box body structure is made of engineering plastics and is surrounded by four smooth planes, the inner layer is made of foamed engineering plastics and is provided with an irregular multi-hole structure, and the foamed hole diameter between the outer layer and the inner layer has changes from small to dense to large to thin from outer to inner. Because the mould adopts a box body structure and a foamed inner layer structure, the utility model has easy forming. Especially for the large-sized construction mould, the production cost is reduced and the mass production is convenient to organize. In addition, the plastic mould of the utility model has light weight, the surface of the cast concrete casting is level and smooth, the subsequent whitewash working procedure can be omitted and the paint is conducted directly. The construction foamed plastic mould has the advantages of obvious economic benefit, low price and fine quality and has wide popularization significance.

Description

Building foaming mold plate

Technical field

The utility model relates to a kind of building foaming mold plate, specifically, relates to a kind of mould that is used to make concrete formation when casting concrete.

Background technology

The domestic present actual concrete casting mould that uses has three kinds: (1) wooden form, (2) bamboo plywood form, (3) steel template.Wherein the steel template is difficult to be accepted by the user owing to raw material and cost of manufacture are high, except that being used for being difficult to wide popularization and application special concrete constructs.Though the bamboo plywood form price is low than steel form, the concrete surface that is cast into is uneven, and it is also difficult to promote.Wooden form is the permanent concrete mould that uses of China, though price is minimum in three kinds, but because its intensity is low, even thickness is thicker than the first two kind, tension stress is also not as preceding two kinds, more because the timber alkali resistance is poor, after repeatedly using, corroded by concrete alkalescence and wear out, consequently can't use, its repeated use is generally 3-5 time and promptly abandons, and causes the timber resources waste.Though being the utility model of ZL 02265469.1, the patent No. adopt engineering plastics as mould material, have supporting layer and back-up coat double-decker, but the hole wall of regularly arranged honeycomb hole or square hole is very thin in its back-up coat, according to the ability of domestic present injection-moulding device with to the plastic flow property requirement, its product workpiece size is difficult to do greatly, and scrappage height in the manufacturing process, the product stripping difficulty, as a production small size template, the user can not welcome.

Summary of the invention

The utility model is at the above deficiency of prior art, the foaming mold plate for building that provide a kind of and be shaped easily, cost is cheap relatively, is easy to produce in batches.

The purpose of this utility model realizes in the following manner: a kind of building foaming mold plate, its outer four sides body structure that surrounds by four smooth flat for adopting that engineering plastics make, internal layer is the foaming engineering plastics, has irregular loose structure, foaming aperture between skin and the internal layer is dredged by little, close carrying out the transition to gradually greatly from outside to inside, does not have obvious interface.

The utility model is compared with prior art, because template adopts body structure and foam inner layer structure, thereby is shaped easily, especially to the heavy construction template, greatly reduces cost of production, is convenient to tissue and produces in enormous quantities; Mold plate weight of the present utility model is lighter, only is 1/10th of steel form; Adopt the cast concrete surfacing of the utility model casting smooth, can save the follow-up operation of whitewashing, directly carry out coating, every square metre about about 10 yuan of the material of saving and wages, remarkable in economical benefits.

Description of drawings

Fig. 1 is the utility model cross sectional representation.

The specific embodiment

Below in conjunction with accompanying drawing embodiment is described in detail.

The utility model template surrounds the four sides body structure by four smooth flat quadratures along its length, as shown in Figure 1, outer 1 is blown rigid polyvinyl chloride not, proportion is 1.4, tension stress is every square centimeter more than 500 kilograms, internal layer 2 is the foamed polyvinyl chloride plastics, and frothing percentage is below 3 times, and proportion is below 0.5.Outer 1 thickness is set by stressed size.Outer 1 and internal layer 2 between the foaming aperture from outside to inside, the aperture carries out the transition to greatly and rarely by little, close gradually, no sharp interface so bonding strength is good, can not peeled off.

The utility model adopts mix equipment, extrusion equipment and vacuum equipment, engineering plastics through mix, extrude, technology such as Vacuum shaping can produce foaming mold plate for building.The engineering plastics that adopted mainly contain polyvinyl chloride and polypropylene and modified plastics thereof.

Claims

1, a kind of building foaming mold plate is characterized in that the outer four sides body structure of making for the engineering plastics that do not foam that is surrounded by four smooth flat, and internal layer has irregular loose structure for the foaming engineering plastics.

2, building foaming mold plate according to claim 1 is characterized in that no obvious interface between skin and the internal layer is dredged from little, close carrying out the transition to gradually greatly in the aperture from outside to inside in the foaming aperture between described skin and the internal layer.