CN214873268U - Light high-strength template - Google Patents

Abstract

The utility model relates to a light weight high strength template, include the core and laminate respectively and fix panel and the bottom plate at core two surfaces, the core includes multilayer bamboo layer, the bamboo layer is formed and the thickness direction of bamboo strip is followed by a plurality of bamboo strips along the same direction horizontal arrangement connection the thickness direction of core sets up, and is adjacent the bamboo strip arrangement direction on bamboo layer is the same, and this application has the fracture properties that promotes the template and reduces the bamboo strip effect of making not unidimensional.

Description

Light high-strength template

Technical Field

The application relates to the field of building formwork systems, in particular to a light high-strength formwork.

Background

At present, the cast-in-place concrete construction technology is still adopted to the vast majority of structural engineering, and the special engineering of die carrier rather than assorted is indispensable as supplementary construction measure, and the special engineering of die carrier can simply divide into template and support system two parts, and current building field template material has a lot of, if: wood, steel, bamboo, aluminum, etc.

Wherein the steel form has been gradually replaced by aluminum alloy forms because of its susceptibility to rust and its heaviness; with the large-scale use of aluminum alloy templates, the consumption of metals, particularly aluminum, is severe, which leads to transitional exploitation of aluminum ore resources, while metal mineral resources are limited and cannot be formed in a short time; it is necessary to explore a new type of recyclable wood resource to prepare the clean water template, so as to reduce the excessive mining of the mineral soil resource and reduce the cost; therefore, the wood template comes to the end, and the existing wood template mainly comprises full-wood plywood, full-bamboo plywood and bamboo-wood composite plywood.

For the related art described above: the inventor thinks that the wood plywood water absorption expansion rate is high, and the used number of times is few repeatedly, and all have the bamboo layer of bamboo strip vertical and horizontal arrangement in no matter all bamboo plywood or the compound plywood of bamboo wood, and the vertical and horizontal arrangement of bamboo strip easily leads to the template fracture, and the template of the same specification needs the bamboo strip of multiple size when the preparation, and the process is loaded down with trivial details, and the processing cost is higher.

Disclosure of Invention

Reduce the bamboo strip of the not unidimensional preparation in order to promote the fracture performance of template, this application provides a light weight high strength template.

The application provides a light weight high strength template adopts following technical scheme:

the utility model provides a light weight high strength template, includes the core and fixes panel and the bottom plate at core two surfaces with gluing respectively, the core includes multilayer bamboo layer, the bamboo layer is followed the thickness direction that a plurality of bamboo strips formed and the bamboo strip along the tiling of the same direction by a plurality of bamboo strips the thickness direction of core sets up, and is adjacent the bamboo strip arrangement direction on bamboo layer is the same.

Through adopting above-mentioned technical scheme, set up the panel on the core surface, can polish the panel, promote the clear water performance of template, and adopt a plurality of bamboo strips to arrange the bamboo matter layer that the veneer formed, and the thickness direction of bamboo strip sets up along the thickness direction of core plate, the bamboo strip stress surface is bigger, thereby the fracture property of template has been promoted, because the setting of bamboo strip single direction, compare in the bamboo layer of arranging vertically and horizontally, the size of the bamboo strip that adopts only needs a specification, thereby need not to make the bamboo strip of multiple size, the simplified procedure, and cost is reduced.

Preferably, the core plate further comprises a wood layer, wherein the wood layer comprises a wood plate with an integral structure and/or a wood plate with a combined structure; the wood board of the splicing structure is formed by arranging and connecting a plurality of wood strips along the same direction; the wood layer is glued with the adjacent bamboo layer.

Through adopting above-mentioned technical scheme, the bamboo matter layer can promote the fracture resistance of core, and increases the stuff in full bamboo layer, and the stuff perpendicular to full bamboo layer can improve the intensity of core.

Preferably, the wood layer is a wood board with a splicing structure, and the width direction or the thickness direction of a plurality of wood strips in the wood layer is arranged along the thickness direction of the core board; the layer adjacent to each wood layer in the core board is a bamboo layer, or the two wood layers are adjacent and the arrangement directions of the battens on the two adjacent wood layers are different from each other.

By adopting the technical scheme, the battens are added in the bamboo layer, so that the strength of the template can be improved.

Preferably, the panel is made of a wood layer, and the wood layer comprises a wood board with an integral structure and/or a wood board with a combined structure; the thickness direction of the panel is arranged along the thickness direction of the core plate.

By adopting the technical scheme, the wood layer forms the panel of the core plate, so that the phenomenon that the clear water effect of the template is poor due to the influence of bamboo mat grains on the surface of the bamboo layer on the surface of poured concrete can be avoided; and relatively to the bamboo matter layer that the bamboo strip was arranged and is formed, because wood compares in the bamboo, available volume is bigger, and the plank is processed smoothly more easily to promote the clear water effect of template.

Preferably, the outer surface of the panel is compounded with a polyester resin film.

By adopting the technical scheme, the polyester resin film compounded on the panel is a polycondensate of terephthalic acid and ethylene glycol, has good mechanical property and good folding resistance, has the properties of oil resistance, fat resistance, dilute acid resistance, diluted alkali resistance and the like, is not easy to stick, does not react with concrete, enables the concrete after pouring and forming to achieve the effect of fair-faced concrete, achieves the purpose of plastering-free, and improves the effect of fair-faced concrete of the template.

Preferably, the surface of the panel is fixedly connected with a glass fiber layer in a bonding mode, and the polyester resin film is compounded on one surface, far away from the panel, of the glass fiber layer.

By adopting the technical scheme, the wood layer is used as the substrate and is used for being attached to the glass fiber layer, and the glass fiber layer is good in insulating property, strong in heat resistance, good in corrosion resistance and high in mechanical strength.

Preferably, the glass fiber layer is formed by gluing a plurality of single layers, and the single layer is formed by weaving glass fibers into blocks and then soaking the glass fibers in polypropylene solution for hot pressing.

By adopting the technical scheme, the polypropylene is a thermoplastic resin prepared by propylene polymerization, the density is small, the melting point is high, the polypropylene is almost resistant to various acid, alkali and salt corrosion, no stress corrosion, galvanic corrosion and other electrochemical corrosion can be generated, the glass fiber is an inorganic non-metallic material with excellent performance, the glass fiber core board has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, a single layer woven by the glass fiber has good corrosion resistance and wear resistance after being dipped in a polypropylene solution, and meanwhile, the glass fiber core board has good corrosion resistance and waterproof effects.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the panel is arranged on the surface of the core plate, the panel can be polished, the clear water performance of the template is improved, the bamboo layer formed by arranging and gluing a plurality of bamboo battens is adopted, the thickness direction of the bamboo battens is arranged along the thickness direction of the core plate, the stress surface of the bamboo battens is larger, and therefore the fracture performance of the template is improved;

2. in the application, the single-layer structure formed by weaving the glass fibers into blocks, soaking the glass fibers in a polypropylene solution and then thermally sealing the glass fibers has good corrosion resistance and wear resistance, and meanwhile, the core plate has good corrosion resistance and waterproof effects.

3. The polyester resin film is compounded on the glass fiber layer, so that the polyester resin film does not react with concrete, the demolding effect is good, and a better clear water effect can be achieved without plastering.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment 1 of a lightweight high-strength formwork according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an embodiment 2 of a lightweight high-strength formwork according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an embodiment 3 of a lightweight high-strength formwork according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of an embodiment 4 of a lightweight high-strength formwork according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of embodiment 5 of a lightweight high-strength formwork according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of embodiment 6 of a lightweight high-strength formwork according to an embodiment of the present application.

Description of reference numerals: 1. a core board; 2. a panel; 3. a base plate; 4. a bamboo layer; 5. bamboo splints; 6. a wood layer; 7. a glass fiber layer; 8. a polyester resin film.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a light high-strength template.

Example 1

Referring to fig. 1, the light high-strength template structure comprises a core plate 1, a panel 2 and a bottom plate 3 which are glued and hot-pressed and fixed on two surfaces of the core plate 1, wherein the core plate 1 comprises a plurality of bamboo layers 4, the bamboo layers 4 are horizontally arranged and connected in the same direction by a plurality of bamboo battens 5, then the bamboo battens 5 are fixed by connecting pieces, and the bamboo high-strength template structure is formed by gluing and hot-pressing, the connecting pieces can be screws or strings, the thickness direction of the bamboo battens 5 is arranged along the thickness direction of the core plate 1, and the arrangement directions of the bamboo battens 5 of the adjacent bamboo layers 4 are the same;

in the embodiment, when the bamboo strips 5 are manufactured, one end of the bamboo is cut at equal intervals and radially to obtain the bamboo strips 5 with the same thickness, width and length, the bamboo strips 5 adopt high-quality phyllostachys pubescens as raw materials, bamboo sheets with the thickness of 0.8-1mm are formed by mechanical primary processing, and the length and the width of the bamboo layer 4 are 5-8cm larger than the size of a template so as to compensate the volume reduction of the heat-sealed core plate 1; if holes, cracks or other pits exist in the bamboo strips 5, the replacement is needed in time.

Panel 2 comprises whole plank, panel 2's thickness direction all sets up along 1's of core thickness direction, panel 2 keeps away from 1's of core one side veneer fixedly connected with glass fiber layer 7, glass fiber layer 7 is formed by the multilayer individual layer veneer hot pressing of range upon range of setting, the individual layer is woven into the piece behind filiform glass fiber impregnation polypropylene solution, a plurality of cubic individual layers form with different angles tiling heating pressing, the angle that a plurality of cubic individual layers were laid can be 0 degree, 90 degrees and +/-45 degrees, the one side laminating that panel 2 was kept away from to glass fiber layer 7 is fixed with dacron resin film 8.

The bottom plate 3 is glued and thermally sealed on one surface of the core plate 1 far away from the panel 2, the bottom plate 3 can be in the same structure as the panel 2, the surface far away from the panel 1 is glued with a glass fiber layer 7, and the bottom plate 3 can be any one of a wood veneer, a shaving board, a bamboo mat and kraft paper.

Example 2

Referring to fig. 2, the difference between this embodiment and embodiment 1 is that the bamboo layer 4 is formed by weaving a plurality of bamboo splits and fixing them by dipping and heat sealing.

Example 3

Referring to fig. 3, the difference between this embodiment and embodiment 1 is that the core board 1 further includes a wood layer 6, where the wood layer 6 is a wood board with a splicing structure, the wood board with the splicing structure is formed by arranging and connecting a plurality of wood strips in the same direction, and then fixing the plurality of wood strips through a connecting member, where the connecting member may be a screw or a string.

A plurality of wood layers 6 are glued and fixed inside the core board 1, and the width direction or the thickness direction of a plurality of wood strips in the wood layers 6 is arranged along the thickness direction of the core board 1; the layers of the core 1 adjacent to each wood layer 6 are bamboo layers 4.

The implementation principle of the embodiment of the light high-strength template of the embodiment of the application is as follows: when in processing, the bamboo battens 5 are arranged into the multilayer bamboo layers 4, meanwhile, the wood battens are arranged to be fixed and are glued and hot-pressed into the multilayer wood layers 6, the multilayer wood layers 6 are glued between the bamboo layers 4 to form the core board 1, the wood layers 6 are glued on one surface of the core board 1 to form the panel 2, then glass fibers are woven into blocks and are soaked in polypropylene solution, then the single layers are formed by hot pressing with more different materials, then the multilayer single layers are glued and thermally sealed to form the glass fiber layer 7, then the glass fiber layer 7 is glued and thermally sealed on the panel 2, then the glass fiber layer 7 is glued and thermally sealed on one surface, far away from the panel 2, of the polyester resin film 8, after the core board 1, the panel 2 and the bottom board 3 are manufactured, the panel 2 and the bottom board 3 are respectively glued and thermally sealed on two surfaces of the core board 1.

Example 4

Referring to fig. 4, the present embodiment is different from embodiment 3 in that two wood layers 6 are adjacent and the arrangement directions of the wood strips on the two adjacent wood layers 6 are different from each other.

Example 5

Referring to fig. 5, the present embodiment is different from embodiment 3 in that the face sheet 2 is composed of wood layers 6, the wood layers 6 are wood boards of a split structure, the thicknesses of a plurality of wood strips in the wood boards of the split structure are all arranged along the thickness direction of the core board 1, and the length direction of the wood strips is arranged along the length direction of the core board 1.

Example 6

Referring to fig. 6, the present embodiment is different from embodiment 5 in that the lengthwise direction of the wood lath is arranged along the widthwise direction of the core board 1.

The preparation process of the light high-strength template comprises the following steps:

step 1, respectively manufacturing a core plate 1, a panel 2 and a bottom plate 3; wherein:

the method comprises the steps of arranging a plurality of bamboo strips 5 in the same direction and fixing the bamboo strips into a bamboo curtain through strings, controlling the thickness direction of the bamboo strips 5 to be arranged along the thickness direction of the core board 1, transporting the bamboo curtain to a glue pool, soaking for 5 minutes, then conveying the bamboo curtain out, draining and drying for later use, wherein when the core board 1 is manufactured, the dried bamboo curtain is glued into a bamboo layer 4 by adopting a roller and rolling and brushing glue, the next bamboo layer 4 is tiled and glued on the bamboo layer 4, the steps are repeated until all the bamboo layers 4 are tiled and glued, and then the multiple bamboo layers 4 are hot-pressed to form the core board 1.

The method comprises the following steps of manufacturing the core plate 1, arranging a plurality of wood strips in the same direction, fixing the wood strips into a wood curtain through a string, controlling the thickness direction or the width direction of the wood strips to be arranged along the thickness direction of the core plate 1, sequentially paving the wood strips along the thickness direction or the width direction of the core plate 1 along the same direction, conveying the wood curtain to a glue pool, soaking for 5 minutes, conveying the wood curtain to a draining and drying standby, manufacturing the core plate 1, gluing the dried wood curtain into a wood layer 6 by adopting a roller and a rolling brush to form the wood layer 4, paving the bamboo layer 4, paving the wood layer 6 on the paved bamboo layer 4, paving the bamboo layer 4 on the wood layer 6 until the thickness required by the core plate 1 is reached, and pressing the wood curtain into the core plate 1 again;

the manufacturing method of the panel 2 comprises the steps of gluing and hot-pressing one wood layer 6 on one surface of a core board 1 to form the panel 2, weaving glass fibers into a single layer, dipping polypropylene solution, gluing the single layer dipped with polypropylene into a glass fiber layer 7, gluing and hot-sealing the glass fiber layer 7 on the wood layer 6, and gluing and fixing a polyester resin film 8 on the formed panel 2;

the step of making the base plate 3 comprises making a monolithic wood plate to form the base plate 3;

and 2, gluing the panel 2 and the bottom plate 3 on two surfaces of the core plate 1, and hot-pressing.

And 3, repairing and flattening the two surfaces of the core plate 1 and the outer surface of the panel 2 by using putty.

And 4, gluing the panel 2 and the bottom plate 3 on the two surfaces of the core plate 1, and hot-pressing.

When the core plate 1 is glued, the glue distribution amount is 280g/m²The solid content of the glue is 50%, and the hot pressing mode is as follows: hot-in and hot-out, the hot-pressing temperature is 125-: 15 min; when the glass fiber layer 7 is glued on the panel 2, the glue spreading amount is 300g/m²The solid content of the glue is 50%, and the hot pressing mode is as follows: cold inlet and cold outlet, 42 degree outlet, hot pressing temperature of 125-Time: 8-10 min; and both surfaces of the hot-pressing steel film are mirror steel templates.

Taking example 1 as an example, the physical indexes of the prepared 12mm thickness are as follows:

according to the table, the core plate with the thickness of 12mm prepared by the preparation process is less than 11kg per square meter, has lower mass and is convenient to transport. The water content of the core plate 1 is less than or equal to 12 percent, and meets the water content (6 to 14 percent) of the building template in the specifications of plywood for concrete template GB/T17656 to 2008 and artificial plate dimension measurement GB/T19367 to 2009 . The elastic modulus (with the grain being more than or equal to 7500Mpa and the cross grain being more than or equal to 7000 Mpa) of the core plate 1 is far greater than the elastic modulus (with the grain being more than or equal to 6000Mpa and the cross grain being 4500 Mpa) of a template specified in plywood for a concrete template GB/T17656-2008 and artificial plate size measurement GB/T19367-2009 , and the static bending strength (with the grain being more than or equal to 85Mpa and the cross grain being more than or equal to 70 Mpa) of the same is far greater than the static bending strength (with the grain being more than or equal to 50Mpa and the cross grain being more than or equal to 30 Mpa) of the template specified in plywood for the concrete template GB/T17656-2008 and artificial plate size measurement GB/T19367-2009 . The bonding strength (not less than 1.7 Mpa) of the core board 1 is far greater than the specified bonding strength (not less than 0.7 Mpa), and the core board 1 prepared by the preparation process of the embodiment meets the requirements of the I-type plywood dip peeling test.

Taking example 1 as an example, the physical indexes of the prepared thickness of 14mm are as follows:

according to the table, the core plate 1 with the thickness of 14mm, which is prepared by the preparation process, has the weight of less than 11kg per square meter, is low in mass and convenient to transport. The water content of the core plate 1 is less than 12 percent, and the water content of the building template (6 percent to 14 percent) meets the regulation of plywood for concrete templates GB/T17656-2008 and artificial plate size measurement GB/T19367-2009 . The elastic modulus (with the grain being more than or equal to 8000Mpa and the cross grain being more than or equal to 7000 Mpa) of the core plate 1 is far greater than the elastic modulus (with the grain being more than or equal to 90Mpa and the cross grain being more than or equal to 70 Mpa) of the template specified in the plywood for concrete template GB/T17656-2008 and the artificial plate size determination GB/T19367-2009 (with the grain being 6000Mpa and the cross grain being 4500 Mpa), and the static bending strength (with the grain being more than or equal to 90Mpa and the cross grain being more than or equal to 70 Mpa) of the template specified in the plywood for concrete template GB/T17656-2008 and the artificial plate size determination GB/T19367-2009 (with the cross grain being more than or equal to 50Mpa and the cross grain being more than or equal to 30 Mpa). The bonding strength (not less than 1.7 Mpa) of the core plate 1 is far greater than the specified bonding strength (not less than 0.7 Mpa), and the clean water template prepared by the preparation process of the embodiment meets the requirements of the I-type plywood dipping and peeling test.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (4)

1. The utility model provides a light high strength template, includes core board (1) and veneer respectively fixes panel (2) and bottom plate (3) at core board (1) two surfaces, its characterized in that: the core plate (1) comprises a plurality of bamboo layers (4), the bamboo layers (4) are formed by tiling a plurality of bamboo battens (5) in the same direction, the thickness direction of the bamboo battens (5) is arranged in the thickness direction of the core plate (1), the arrangement directions of the bamboo battens (5) adjacent to the bamboo layers (4) are the same, the panel (2) is composed of a wood layer (6), and the wood layer (6) comprises a wood plate with an integral structure and/or a wood plate with a splicing structure; the thickness direction of the panel (2) is arranged along the thickness direction of the core board (1), the outer surface of the panel (2) is compounded with a polyester resin film (8), the surface of the panel (2) is fixedly connected with a glass fiber layer (7) in an attaching mode, and the polyester resin film (8) is compounded on one surface, far away from the panel (2), of the glass fiber layer (7).

2. A lightweight, high strength form as claimed in claim 1, wherein: the core board (1) further comprises at least one wood layer (6), wherein the wood layer (6) comprises a wood board with an integral structure and/or a wood board with a combined structure; the wood board of the splicing structure is formed by arranging and connecting a plurality of wood strips along the same direction; the wood layer (6) is glued with the adjacent bamboo layer (4).

3. A lightweight, high strength form as claimed in claim 2, wherein: the wood layer (6) is a wood board with a splicing structure, and the width direction or the thickness direction of a plurality of wood strips in the wood layer (6) is arranged along the thickness direction of the core board (1); the layer adjacent to each wood layer (6) in the core board (1) is a bamboo layer (4), or the two wood layers (6) are adjacent and the arrangement directions of the battens on the two adjacent wood layers (6) are different from each other.

4. A lightweight, high strength form as claimed in claim 1, wherein: the glass fiber layer (7) is formed by gluing a plurality of single layers, and the single layer is formed by weaving glass fibers into blocks and then soaking the glass fibers in polypropylene solution for hot pressing.

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