KR200433889Y1 - The concrete form panel - Google Patents

Abstract

The present invention relates to a metal formwork panel in which a synthetic resin layer is directly bonded to a rear surface thereof.

Formwork panel of the present invention, the metal frame 11 of the rectangular frame shape; A metal plate 12 fixedly coupled to the front surface of the frame 11; A plurality of reinforcing members 13 coupled to the inside of the frame 11 for rigid reinforcement of the frame 11 and the metal plate 12; It consists of a synthetic resin layer 14 and the like detachably coupled to the back surface of the metal plate 12 except the frame 11 and the outer surface of the reinforcing materials (13).

The formwork panel of the present invention has the advantage that the repair work time for the recycling of the metal formwork panel is significantly reduced and the maintenance cost of the formwork panel is also reduced.

Formwork, Formwork Panels, Synthetic Resin Layers, Films

Description

Formwork panel {The concrete form panel}

1 is a front view of the formwork panel of the present invention embodiment.

Figure 2 is a rear view of the formwork panel of the present invention.

Figure 3 is an exploded perspective view of the formwork panel of the present invention.

4 is a cross-sectional view taken along the line A-A of FIG.

          ((Explanation of symbols for main part of drawing))

             11.frame 12.metal plate

             13. Reinforcement 14. Synthetic Resin Layer

The present invention, the synthetic resin layer is coupled to the back of the building formwork panel made of metal, so that the concrete attached to the back of the formwork panel dismantled after construction is easily removed with the synthetic resin layer, as well as for recycling It relates to a die panel, which greatly reduces the maintenance time of the die panel.

In the construction of various buildings and structures, the concrete wall is formed by forming a mold such as a mold in which the internal space forms the wall, that is, forming the mold first, and then filling and curing the concrete inside the formwork.

Thus, the formation of the wall begins with making the formwork, a mold for curing concrete.

As a conventional tool used to make the formwork as described above, conventionally, wooden formwork panel combined with a wooden frame on the back of the plywood has been mainly used, looking at the concrete wall forming process using the wood formwork panel as follows same.

A large number of wooden formwork panels made from nailed wooden frames on the back of plywood are connected to the outside of the rebar assembly, which is the skeleton of the wall or column, to form formwork for the interior, exterior walls, or columns, and then the concrete is placed in the space between them. It is filled and cured, and after curing is completed, the wooden formwork panels forming the formwork are removed from the wall.

By the way, when constructing the concrete wall using the wooden formwork panel, since the connection assembly between the formwork panels is made by nailing together with the tightening of the wire, the manpower and time are required for the formwork installation work, and also the formwork after concrete curing Demolition work takes a lot of time and manpower.

In addition, the wood formwork panel is easily deformed by the pressure of the concrete filled in the formwork due to the nature of the wood, the larger the size of the wall, the more the tendency is increased, so that the outer surface of the wall does not form a flat surface Sometimes it happens.

Therefore, in order to prevent deformation of the wooden formwork panel as described above, in addition to the inconvenience of having to reinforce the back of the wooden formwork panel with a separate reinforcement before filling the formwork with concrete, the wooden formwork panel is However, the number of repeated reuses is extremely limited because they are often deformed or damaged during the installation and removal of formwork.

In addition, the damaged wooden formwork panel has been treated mainly through incineration, but recently, since the smoke generated during incineration acts as a pollution factor, it also points out a problem such as an additional cost for the treatment. It is becoming.

In order to solve the problems of the wood formwork panel as described above, metal formwork panels made of metal such as steel (鋼材) or aluminum alloy has been developed and used in various building construction sites, the range of use and scale is rapidly increasing. There is a trend.

However, in the case of steel formwork panel, since the weight is considerable, there is a problem that the labor load can be excessively increased when the formwork is installed, and an aluminum alloy formwork panel has been developed to solve this problem.

Aluminum alloy formwork panels are not only lighter in weight than steel formwork panels, but also have a high self-rigidity so that they are hardly deformed by concrete pressure as compared to wood formwork panels, resulting in excellent surface quality of the cured walls. It is not only easy to install and dismantle, but also to be reusable repeatedly.

However, in the case of the aluminum alloy formwork panel, the concrete attached to the back side or the reinforcement frame does not easily fall off during construction, so the work time to remove the concrete from the back side or the reinforcement frame is excessive to recycle the disassembled aluminum alloy formwork panel. In addition to this, there are problems such as damage to the formwork panel in the process.

The present invention, because the concrete attached to the back of the conventional metal formwork panel, in particular, aluminum alloy formwork panel is not easy to fall off, excessive work time of repairing the formwork panel for recycling, or damage to the formwork panel during repair The object of the present invention is to provide a formwork panel that can be easily removed during repair work of concrete attached to the backside of a dismantled formwork panel by preventing concrete from directly attaching to the backside of a metal formwork panel. There is this.

The above object of the present invention is achieved by a synthetic resin layer.

The formwork panel of the present invention is for making it easy to remove the concrete pieces firmly attached to the backside of the formwork panel during the construction process, it is characterized in the structure of interposing a synthetic resin layer between the backside of the formwork panel and concrete.

That is, the formwork panel of the present invention has a structure in which a synthetic resin layer is coupled to the rear surface thereof, and the backside and the synthetic resin layer of the formwork panel are directly in contact with each other.

In addition, the back of the formwork panel is a structure in which a plurality of bar-shaped reinforcement is fixedly coupled to the rigidity of the formwork panel, the synthetic resin layer is bonded to the entire back of the formwork panel including the reinforcement.

The formwork panel of the present invention configured as described above, the concrete is attached to the back surface, that is, the back surface of the synthetic resin layer, the concrete is separated from the synthetic resin layer.

Therefore, the synthetic resin layer should be detachably bonded, and the synthetic resin layer may be detachably bonded to the metal surface by various methods, for example, a pressure-sensitive adhesive or a release agent such as a sequential liquid resin on the back of the formwork panel. The method of apply | coating in this way, the method of closely bonding the synthetic resin film to which the adhesive was apply | coated, etc. are mentioned.

The first method of the above two methods, the application of the adhesive or release agent and the synthetic resin, and then drying the work is very cumbersome and requires a long time working, the second method, a plurality of reinforcing materials are combined into a number of compartments It is not easy to uniformly attach a synthetic resin sheet coated with a pressure-sensitive adhesive on the surface of the formwork panel.

Therefore, when attaching the adhesive-coated synthetic resin film, by blowing hot air to the back of the film in a state in which the synthetic resin film is laminated on the back of the formwork, the back of the formwork panel partitioned into a number of compartments while the film is soft and stretched Since the synthetic resin film can be attached relatively uniformly and quickly, the synthetic resin layer bonded to the formwork panel of the present invention is most preferable in terms of workability.

As described above, the synthetic resin layer is detachably bonded to the back of the formwork panel by the hot air method, so that the concrete mixture overflowing or splashing during concrete pouring is attached to the surface of the synthetic resin layer rather than the metal back of the formwork panel. The concrete attached together can be easily separated and removed.

The details of the purpose and technical constitution according to the present invention, including the effect thereof, will be clearly understood by the following description with reference to the drawings showing preferred embodiments of the present invention.

1 is a front view of the present invention embodiment formwork panel, FIG. 2 is a rear view, FIG. 3 is an exploded perspective view, and FIG. 4 is a cross-sectional view of the present invention formwork panel.

As shown, the formwork panel of the present invention,

A metal frame 11 having a rectangular frame shape;

A metal plate 12 fixedly coupled to the front surface of the frame 11 and having a flat surface;

A plurality of metal bar-shaped reinforcements 13 coupled to the inner circumferential surface of the frame 11 to be in close contact with the rear surface of the metal plate 12;

It consists of a synthetic resin layer 14 and the like detachably attached in a state in close contact with the back surface of the metal plate 12 and the outer surface of the plurality of reinforcing material (13) except for the frame (11).

At this time, the frame 11 and the metal plate 12 is steel (알루미늄) or aluminum alloy, in particular, can be effectively applied to the formwork panel made of aluminum alloy having a higher adhesion of concrete than steel, the metal frame 11 In the case of a conventional metal formwork panel consisting of a metal plate 12 and a reinforcing material 13, a release layer made of a synthetic resin or the like may be coated on the front surface of the metal plate, which improves the releasability of the formwork panel to the concrete surface. It is for.

And, the synthetic resin layer 14, by laminating a synthetic resin film on the back of the die panel rather than forming and coating the synthetic resin by blowing hot air below the melting point of 70 ℃ or more, while the synthetic resin film is stretched by softening Attached, look at this in detail as follows.

In general, the synthetic resin film is manufactured and sold in the form of a roll, the adhesive is applied to one surface of the film.

Therefore, in a state in which the pressure-sensitive adhesive coated surface of the synthetic resin film is laminated on the back of the die, the hot air is blown to the back of the film so that the synthetic resin film and the back of the metal plate are partially adhered to each other, and then, at the tightly coupled portion of the synthetic resin film. By blowing hot air outward, that is, the inner circumferential surface side of the frame, the air between the plastic film and the metal plate escapes between the frame inner circumferential surface and the edge of the plastic film, and the adhesive coated surface of the plastic film, the back surface of the metal plate, and the outer surface of the reinforcing material closely adhere to each other. It becomes possible.

In addition, in order to bond the synthetic resin film to the back of the formwork panel by hot air as described above, the synthetic resin film must be elongated while being softened by the heat of hot air, and the thermoplastic synthetic resin film made of polyvinyl chloride, polystyrene, polyethylene, polypropylene, etc. Preference is given to using.

As described above, the formwork panel of the present invention, since the detachable synthetic resin layer is bonded to the rear surface, it is possible to easily separate and remove the concrete attached to the rear surface of the formwork panel with the synthetic resin layer during construction, accordingly, made of metal In addition to the drastically reduced repair time for the formwork panel recycling, there is an advantage in that the damage to the formwork panel during the repair can be prevented.

Claims (1)

In the metal formwork panel is coupled to a metal plate having a flat surface on the front of the metal frame of the rectangular frame shape, a plurality of reinforcing material is coupled between the frame on the back of the metal plate, The synthetic resin layer 14 which adheres the adhesive coating surface of the thermoplastic synthetic resin film softened by the hot air of 70 degreeC or more to the back surface of the metal plate 12 except the said frame 11, and the outer surface of many reinforcement materials 13 Formwork panel, characterized in that the coating is formed.

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