CN212021428U

CN212021428U - Pressing die for preparing geopolymer cementing material

Info

Publication number: CN212021428U
Application number: CN202020354609.XU
Authority: CN
Inventors: 李峰; 崔孝炜; 刘璇; 周春生; 张国春; 刘彦峰; 刘君; 刘明宝; 李晓龙
Original assignee: Shangluo University
Current assignee: Shangluo University
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-11-27
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a pressing mould for preparing geopolymer cementing material in the technical field of moulds, which consists of an external mould, an internal mould, a base, a compression leg, an upper gasket, a lower gasket, a demoulding compression leg and a bolt, wherein the internal mould is formed by combining the internal moulds with four rectangular side surfaces; the utility model discloses the centre form is synthesized by four bibliographic categories, and the demolding compression leg can be used in the centre form top surface in the demolding in-process, makes centre form and the whole demolding of sample, guarantees that the sample atress is even at the demolding in-process, and the sample upper surface is difficult for receiving the shearing destruction, avoids the sample crackle and breakage to appear.

Description

Pressing die for preparing geopolymer cementing material

Technical Field

The utility model relates to a mould field, in particular to a be used for carrying out fashioned physics of geopolymer cementitious material, the experimental embossing mold who uses of mechanical properties.

Background

In order to test the physical and mechanical properties of the geopolymer cementitious material sample, such as compressive strength, flexural strength, etc., it is necessary to press the geopolymer slurry into a sheet sample. The current mould generally adopts the ejecting mode of pressure stick to carry out the drawing of patterns to the sample, and the frictional force with the mould inner wall need be overcome to the sample among the drawing of patterns process, and the atress is hardly even, and the sample lower surface breaks away from with the gasket earlier simultaneously, leads to the sample upper surface to receive the shearing and destroys, and the sample is easy to appear crackle and broken base on this, the utility model discloses a embossing mold that preparation geopolymer cementitious material used to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressing die that preparation geopolymer cementitious material used to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pressing die for preparing geopolymer gelled materials is composed of an outer die, an inner die, a base, a pressing column, an upper gasket, a lower gasket, a demolding pressing column and a bolt, wherein the inner die is formed by combining inner die side plates with four rectangular side surfaces, the upper portion of the base and the bottom of the demolding pressing column are completely inserted into the outer die, the inner die is inserted into the outer die, the pressing column can be inserted into the inner die, and the upper gasket and the lower gasket are placed between the base and the pressing column to press the geopolymer gelled materials.

Preferably, the cross-sectional area of the upper part of the base is the same as that of the bottom of the demolding pressing column, and the inner mold is clamped between the base and the demolding pressing column.

Preferably, the upper and lower spacers are placed inside the inner mold.

Preferably, the front side and the rear side of the outer mold are respectively provided with four positioning grooves, the inner mold side plate is provided with a small hole, the positioning grooves and the small holes are fixedly connected through bolts, and the outer mold and the inner mold are accurately fixedly connected.

Preferably, the front side and the rear side of the outer die are respectively provided with four concave holes, and the concave holes correspond to the positioning grooves.

Preferably, the outer die, the inner die, the base, the pressing column, the upper gasket, the lower gasket, the demolding pressing column and the bolt are all made of stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model is provided with positioning grooves on the external mold and the internal mold, which are fixed together quickly by bolts;

the utility model discloses the centre form is synthesized by four bibliographic categories, and the demolding compression leg can be used in the centre form top surface in the demolding in-process, makes centre form and the whole demolding of sample, guarantees that the sample atress is even at the demolding in-process, and the sample upper surface is difficult for receiving the shearing destruction, avoids the sample crackle and breakage to appear.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a stamper structure;

FIG. 2 is a schematic view of an outer mold structure;

FIG. 3 is a schematic view of an inner mold structure;

FIG. 4 is a schematic view of a base structure;

FIG. 5 is a front view of a die press;

fig. 6 is a front view of the mold stripping.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a pressing die for preparing geopolymer cementing materials is composed of an outer die 1, an inner die 2, a base 3, a pressing column 4, an upper gasket 5, a lower gasket 6, a demoulding pressing column 7 and a bolt 8, wherein the outer die 1, the inner die 2, the base 3, the pressing column 4, the upper gasket 5, the lower gasket 6, the demoulding pressing column 7 and the bolt 8 are all made of stainless steel materials, and the inner die 2 is formed by combining inner die side plates 2-12-2 with four rectangular side surfaces;

the cross sectional areas of the upper part of the base 3 and the bottom of the demoulding compression column 7 are the same, the inner die 2 is clamped between the base 3 and the demoulding compression column 7, the upper part of the base 3 and the bottom of the demoulding compression column 7 are completely inserted into the outer die 1, the inner die 2 is inserted into the outer die 1, the compression column 4 can be inserted into the inner die 2, and the upper gasket 5 and the lower gasket 6 are placed inside the inner die 2; an upper gasket 5 and a lower gasket 6 are placed between the base 3 and the compression leg 4 to compress the geopolymer cement.

Four positioning grooves 9 are respectively formed in the front side and the rear side of the outer mold 1, small holes are formed in the side plates 2-12-2 of the inner mold, the positioning grooves 9 and the small holes are fixedly connected through bolts 8, the outer mold 1 and the inner mold 2 are accurately fixedly connected, four concave holes are respectively formed in the front side and the rear side of the outer mold 1, and the concave holes correspond to the positioning grooves 9.

And (3) a sample pressing process: firstly, a base 3 is placed on a laboratory bench, an external mold 1 is sleeved on the upper part of the base 3, then a rectangular side surface is enclosed by internal mold side plates 2-12-2 to splice the internal mold 2, so that a small hole of the internal mold 2 is aligned with a positioning groove 9 of the external mold 1 and is inserted tightly through a bolt 8; then, the lower gasket 6 is placed in the inner die 2, a certain amount of geopolymer slurry is poured, the upper gasket 5 is placed in the inner die 2, the pressing column 4 extends into the inner die 2, a few times of pressing are performed, and finally the die is placed on a press machine for sample pressing.

And (3) demolding: after the geopolymer cementing material is pressed, the mould is taken out, the mould is placed on a laboratory bench, the bolt 8 is pulled out, the demoulding compression leg 7 is slowly pressed into the external mould 1, the internal mould 2, the upper gasket 5, the lower gasket 6 and the sample are pressed out together, then the internal mould 2 is separated, and the upper gasket 5, the lower gasket 6 and the pressed sample are taken out.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pressing die for preparing geopolymer gelled materials, which is characterized in that: the special tool for the geopolymer cementing material comprises an outer die (1), an inner die (2), a base (3), a compression leg (4), an upper gasket (5), a lower gasket (6), a demolding compression leg (7) and a bolt (8), wherein the inner die (2) is formed by combining inner die side plates (2-1 and 2-2) with four rectangular side surfaces, the upper portion of the base (3) and the bottom of the demolding compression leg (7) are completely inserted into the outer die (1), the inner die (2) is inserted into the outer die (1), the compression leg (4) can be inserted into the inner die (2), the upper gasket (5) and the lower gasket (6) are placed between the base (3) and the compression leg (4) to press the geopolymer cementing material.

2. A pressing die for producing geopolymer cement according to claim 1, characterized in that: the cross sectional area of the upper part of the base (3) is the same as that of the bottom of the demoulding compression leg (7), and the inner die (2) is clamped between the base (3) and the demoulding compression leg (7).

3. A pressing die for producing geopolymer cement according to claim 1, characterized in that: the upper gasket (5) and the lower gasket (6) are placed inside the inner die (2).

4. A pressing die for producing geopolymer cement according to claim 1, characterized in that: the front side and the rear side of the outer mold (1) are respectively provided with four positioning grooves (9), the inner mold side plates (2-1 and 2-2) are provided with small holes, the positioning grooves (9) and the small holes are fixedly connected through bolts (8), and the outer mold (1) and the inner mold (2) are accurately fixedly connected.

5. A pressing die for producing geopolymer cement according to claim 1, characterized in that: four concave holes are also formed in the front side and the rear side of the outer die (1) respectively and correspond to the positioning grooves (9).

6. A pressing die for producing geopolymer cement according to claim 1, characterized in that: the outer die (1), the inner die (2), the base (3), the pressing column (4), the upper gasket (5), the lower gasket (6), the demoulding pressing column (7) and the bolt (8) are all made of stainless steel.