JP4874283B2 - Method for producing porous corner plate - Google Patents

Description

  The present invention relates to a method for manufacturing a porous corner plate.

  Conventionally, as the outer wall of a building, there were many outer walls to be constructed at the construction site, such as a soil wall coated with soil, but recently, the outer wall material was produced at a factory etc., and this outer wall material was used as the outer wall of the building. The outer wall attached to the part has become widespread for the reason that it can be constructed quickly, uniformly, and with good appearance.

  As the outer wall material produced in the factory, porous ALC (Autoclaved Light-Weight Concrete), precast concrete, hard wood cement, etc. are often used. In particular, an outer wall material made of ALC (hereinafter referred to as an ALC plate) is easy to construct because of its light weight, and is used for many outer wall materials.

  In addition to a normal flat plate, the ALC plate includes an ALC corner plate installed at a corner (corner) of the outer wall. This ALC corner plate has an L-shaped cross section perpendicular to the length direction.

  Hereinafter, a method for manufacturing the ALC corner plate will be described with reference to FIGS. As shown in FIG. 3, first, ALC corner plates 2 a and 2 b are cut out from the ALC square 1. (Process S11) Next, the uneven | corrugated pattern 4 is formed in the surface of ALC corner board 2a, 2b. The concavo-convex pattern 4 is a pattern for generating an aesthetic appearance in the appearance of the ALC corner plates 2a and 2b. (Step S12) Next, in order to improve the appearance and waterproofness of the ALC corner plates 2a and 2b on which the concavo-convex pattern 4 is formed, a coating process is performed on the surface thereof. (Step S13) After the coating process, a drying process is performed to dry the paint applied to the ALC corner plates 2a and 2b. The ALC corner plates 2a and 2b are often heated before painting. In such a case, a cooling process is performed after the drying process. (Step S14)

  The above process will be described in more detail with reference to FIG. The ALC square bar 1 is a square bar having a rectangular cross section. By cutting the ALC square bar 1 with a milling machine or the like, two L-shaped ALC corner plates 2a and 2b are cut out.

  Thereafter, a large number of ALC corner plates 2a and 2b are arranged on the work table, and the uneven pattern 4 is formed on the two surfaces serving as the outer wall surfaces. At this time, in order to stably fix the ALC corner plates 2a and 2b, as shown in FIG. 4 (c), using the fixing jigs 3a and 3b for fixing the ALC corner plates 2a and 2b, Pattern 4 is formed. Subsequently, as shown in FIG. 4D, the ALC corner plates 2a and 2b fixed on the fixing jigs 3a and 3b are placed on the pallet 5, and the surface on which the uneven pattern 4 is formed by spray coating or the like. Apply paint 6 to

The ALC corner plate is described in Patent Document 1.
JP 2008-006329 A

  However, in the manufacturing method of the ALC corner plate, the fixing jigs 3a and 3b have to be used in order to stably fix the ALC corner plates 2a and 2b.

  In addition, when the paint 6 is to be applied only to the surface (coating target surface) on which the concavo-convex pattern 4 serving as the outer wall surface is formed, the paint 6 wraps around and adheres to the adjacent surface 7 adjacent to the coating target surface. There are many. (Refer to FIG. 4D.) Therefore, it was necessary to perform an operation of removing the extra paint 6 adhering to the adjacent surface 7.

  Further, when the paint 6 enters the contact surface between the ALC corner plates 2a and 2b and the fixing jigs 3a and 3b, both of them are fixed through the paint 6, and if they are forcibly removed, the ALC corner plate 2a, There was a possibility that 2b might be damaged. Such a blocking defect (this is called a blocking defect) can also occur between the fixing jigs 3 a and 3 b and the pallet 5.

  In addition, as described above, a large amount of extra paint 6 adheres to a surface other than the surface to be painted, and thus there is a problem that the amount of paint used increases (decrease in paint recovery rate).

  The manufacturing method of the porous corner plate of the present invention is made in view of the above-mentioned problems. A step of preparing a square member made of a porous material and forming a concavo-convex pattern on the surface of the square member; A step of performing a coating process on the surface of the formed square member, and a step of cutting out two porous corner plates having an L-shaped cross section from the square member subjected to the coating process.

    According to the method for producing a porous corner plate of the present invention, since the uneven pattern is formed in the state of a square bar and the coating process is performed, the stability of the work is good and it is not necessary to use a fixing jig. In addition, since the paint is less likely to wrap around the surface other than the surface to be painted, the paint removal work can be reduced. In addition, there is an effect of reducing blocking defects and reducing the amount of paint used.

  In particular, the present invention is suitable for application to integrated production of ALC corner plates.

  Hereinafter, the manufacturing method of the porous corner board by embodiment of this invention is demonstrated based on FIG. 1, FIG.

  As shown in FIG. 1, first, the concavo-convex pattern 11 is formed on the surface of the ALC square member 10. This concavo-convex pattern is a pattern for generating an aesthetic appearance in the appearance of the ALC corner plates 12a and 12b. (Step S1) Next, a coating process is performed on the surface of the ALC square member 10 on which the uneven pattern 11 is formed. (Step S2) After the coating process, a drying process is performed to dry the coating applied to the ALC square member 10. Further, the ALC plate 10 is often overheated before painting. In such a case, a cooling process is performed after the drying process. (Step S3) Then, two ALC corner plates 12a and 12b having an L-shaped cross section are cut out from the ALC square member 10. (Step S4) Thus, the manufacturing method of this embodiment changes the order of the steps in the conventional manufacturing method.

  The above process will be described in more detail with reference to FIG. As shown in FIG. 2A, the ALC square bar 10 is a square bar having a rectangular cross section. The ALC square member 10 is placed on the work table, and the uneven pattern 11 is formed on the upper surface 10a, the right side surface 10b, and the left side surface 10c. At this time, by cutting the surface of the ALC square member 10 using a milling machine or the like, the three surfaces can be continuously formed. In the example of FIG. 2A, linear grooves are formed on the three surfaces.

  Next, the ALC square member 10 with the concavo-convex pattern 11 is placed on the pallet 12, and the upper surface 10a, the right side surface 10b, and the left side surface 10c of the ALC square member 10 are coated. In this coating process, it is preferable to use a spray coating method in which a coating material is sprayed from a spray nozzle and sprayed onto a surface to be coated. In this case, the ALC square 10 is heated before spray coating. (Preheating process) Thereby, it is possible to perform coating on the three surfaces of the upper surface 10a, the right side surface 10b and the left side surface 10c of the ALC square member 10 simultaneously. In addition, as a coating method other than the spray coating method, a roll coater method, a flow coater method, a dipping method, or the like can also be used.

  Next, after the drying / cooling process, the ALC square member 10 is cut with a milling machine or the like to cut out two ALC corner plates 12a and 12b having an L-shaped cross section (see FIGS. 2C and 2D).

  According to the above embodiment, the surface of the ALC square 10 is formed with the concave / convex pattern 11 and is subjected to a coating process. Therefore, the stability of the ALC square 10 as a workpiece is good, and the conventional fixing jig is used. There is no need to use a fixing jig such as 3a and 3b. Moreover, it is less likely that the paint wraps around surfaces other than the surface to be painted (upper surface 10a, right side surface 10b, and left side surface 10c).

  In particular, since the ALC square member 10 is used as the object to be coated at the time of the coating process, and the adjacent surface to the surface to be coated (the surface corresponding to the conventional adjacent surface 7) has not yet been formed, the paint wraps around such an adjacent surface. There is nothing. For this reason, it is possible to reduce the work of removing the encircling paint, further reducing blocking defects, and reducing the amount of paint used.

It is a process flow figure showing a manufacturing method of a porous board by an embodiment of the present invention. It is a figure which shows the manufacturing method of the porous board by embodiment of this invention. It is a process flow figure showing the manufacturing method of the conventional porous board. It is a figure which shows the manufacturing method of the conventional porous board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... ALC square member 10a ... Upper surface 10b ... Right side surface 10c ... Left side surface 11 ... Concave and convex pattern 12a, 12b ... ALC corner board

Claims (5)

Prepare a square rod made of porous material,
Forming a concavo-convex pattern on the surface of the square,
A step of performing a coating process on the surface of the square material on which the uneven pattern is formed;
And a step of cutting out two porous corner plates having an L-shaped cross section from the square member that has been subjected to the coating treatment. Prepare a square rod made of porous material,
Forming an uneven pattern on the top, right and left sides of the square;
A step of performing a coating process on the surface of the square material on which the uneven pattern is formed;
And a step of cutting out two porous corner plates having an L-shaped cross section from the square member that has been subjected to the coating treatment . The method for producing a porous corner plate according to claim 2 , wherein the step of performing the coating treatment is a step of performing the coating treatment on an upper surface, a right side surface, and a left side surface of the square member. The method for producing a porous corner plate according to claim 2 , wherein the step of performing the coating treatment is a step of simultaneously performing spray coating on an upper surface, a right side surface, and a left side surface of the square member. The method for producing a porous corner plate according to any one of claims 1 to 4, wherein the porous square member is a square member made of ALC.

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