KR20000030263A - Method of making a perforate floor panel and the perforate floor panel produced thereof - Google Patents

Abstract

PURPOSE: A preparation method of a floor panel is provided to shorten the process time to penetrate holes by employing a punching press and to prevent holes of a metal penal and a surface material from being distorted by punching holes on the surface material through the holes of the metal panel penetrated by the punch. CONSTITUTION: A floor panel is prepared by the steps of: forming plural holes(9) on a metal panel(6) having ribs(10,11) on the rear surface through the punching press process; adhering a nonmetallic surface material(5) to the surface of the metal panel having plural holes; installing the metal panel on a die(17) higher than the surface material; descending a punch(15) through the plural holes on the metal panel; and forming plural holes(8) on the surface material through the punching press process. The floor panel has the same center of holes on the metal panel and the surface material.

Description

The manufacturing method of a perforated floor panel, and the perforated floor panel manufactured by the manufacturing method {METHOD OF MAKING A PERFORATE FLOOR PANEL AND THE PERFORATE FLOOR PANEL PRODUCED THEREOF}

The present invention relates to a method for producing a perforated floor panel, and a perforated floor panel produced by the method, in particular to a double-bottom structure such as a clean room, computer room or various precision equipment room that requires the flow of gas It relates to a method for producing a perforated floor panel used and a perforated floor panel produced by the production method.

Conventionally, a floor panel having a plurality of holes is used for a double-floor structure (accessible floor panel structure) in a room that requires gas flow, such as the clean room described above. Among these perforated floor panels, there are two conventional methods for manufacturing a perforated floor panel by bonding a surface material to the surface of the panel.

That is, the method of manufacturing the first perforated floor panel is to form a plurality of holes by simultaneously drilling the floor panel and the surface material after adhering the surface material to the surface of the unperforated floor panel.

Another method of manufacturing the second perforated floor panel is to punch out the floor panel and the surface material of different materials separately by punching press to form a plurality of holes in each of the floor panel and the surface material, and then to the plurality of the perforated floors. A plurality of perforated surface materials are adhered to the surface of the panel.

However, in the manufacturing method of the above-mentioned 1st perforated floor panel, since the drilling process is performed by a single-axis or multi-axis drilling machine, when the number of holes is large, the drilling time will become long, and the production efficiency will fall and processing There is a problem that causes a significant increase in cost.

In addition, in the method for manufacturing the second perforated floor panel described above, since a larger number of holes can be punched out by a punching press than in the above-described first manufacturing method, punching is performed in the above-described first manufacturing method. Although processing time can be shortened, since a floor panel and a surface material must be adhere | attached after the punching process which drills many holes is performed, there exists a problem that the hole of a floor panel and the hole of a surface material do not match each other, and are twisted.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to shorten the processing time for punching by using a punching press, and to punch holes in the surface material through the holes of the metal panel in which the punch is pre-drilled. It is an object of the present invention to provide a method for producing a perforated floor panel and a perforated floor panel manufactured by the method for preventing the holes and the holes of the surface material from being misaligned with each other.

The present invention for achieving the above object is a method of manufacturing a perforated floor panel having a plurality of holes by bonding a non-metal surface material to the surface of the metal panel having a rib on the back, ribs on the back by punching press processing A first step of forming a plurality of holes in the metal panel having a second step; and a second step of adhering the surface material of the non-metal to the surface of the metal panel in which the plurality of holes are formed by the first step; and the surface material is bonded by the second step. And a third step of forming a plurality of holes in the surface material by punching, by installing the finished metal panel on the die with the surface material down, and lowering the punch through the plurality of holes formed in the metal panel. .

In the above-described configuration, a doll is formed in the die for punching through the punch, and a ridge formed on the periphery of the doll is increased as it approaches the punch. In this case, the die formed with a doll hole through which the punch passes and punches the hole is formed in the circumference of the hole drilled in the surface material because a ridge is formed at the periphery of the doll hole as it approaches the punch. It is possible to prevent the occurrence of burrs or the circumference of the edges.

Another feature of the present invention is the first step of forming a plurality of holes in the metal panel having ribs on the back by punching press processing, and the non-metal surface material is adhered to the surface of the metal panel in which the plurality of holes are formed by the first step And a metal panel to which the surface material is adhered by the second step is placed in the die with the surface material down, the punch is lowered through a plurality of holes formed in the metal panel, and the surface material is punched out. The center of the hole formed in the metal panel and the center of the hole formed in the surface material are in the same perforated floor panel as manufactured according to the third step of forming a plurality of holes in the hole.

In the above-described configuration, it is preferable that the hole formed in the surface material has a shape in which the periphery thereof is recessed.

1 is a plan view of a metal panel cast in accordance with an embodiment of the present invention.

FIG. 2 is an enlarged front view of a part of the metal panel shown in FIG. 1. FIG.

3 is a plan view of a plurality of round perforated metal panels;

4 is an enlarged view showing a round hole in a circle D of the metal panel of FIG.

5 is a cross-sectional view taken along the line I-I of the metal panel of FIG.

6 is a cross-sectional view illustrating a floor panel in a state in which a surface material is adhered to the surface of the metal panel of FIG. 5.

FIG. 7 is a cross-sectional view illustrating a state in which the floor panel of FIG. 6 is turned upside down to punch holes in the surface material. FIG.

Fig. 8 is a sectional view showing a state when a hole is drilled in the surface material by using a punch and a die.

Fig. 9 is a sectional view showing the floor panel in a state where a hole is drilled in the surface material.

Fig. 10 is an enlarged cross-sectional view of a concave rounded ridge, an annular flat portion, and a doll of a puppet periphery of a die;

<Description of the symbols for the main parts of the drawings>

5: surface material 6: metal panel

8: hole in surface material 9: hole in metal panel

10,11: rib 15: punch

17: Die 17a: Doll

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention, the perforated floor panel of the present invention shows a state in which the metal panel and the surface material is coupled.

1 is a plan view illustrating a metal panel cast according to an embodiment of the present invention, FIG. 2 is an enlarged front view of a portion of the metal panel shown in FIG. 1, and FIG. 3 is a metal panel having a plurality of round holes. Top view of the.

In carrying out the method of manufacturing the perforated floor panel of the present invention, as shown in Fig. 1, a metal panel 6 made of aluminum cast by a die-casting die is prepared. As shown in Fig. 2, ribs 10 and 11 are formed. First, as shown in FIG. 3, a plurality of round holes 9 in the metal panel 6 are punched by a punching press over the entire width of four rows, that is, a plurality of round holes in the horizontal (a) and vertical (b) regions. Punch the holes 9 simultaneously. The round holes 9 are punched in turn for each area of a × b, and the last two rows (c areas) can punch a plurality of round holes 9 by another punching press.

4 is an enlarged view of the round hole 9 in the circle D of FIG. 3, and FIG. 5 is a cross-sectional view taken along the line II of FIG. 4. As shown in Fig. 4, the four round holes 9 in the circle D are arranged close to each other without being in contact with each other, and this round hole 9 is shown in Fig. 3 as shown in Figs. 10 and 11 are arranged in a grid (lattice) shape as a whole.

Next, as shown in FIG. The surface material 5 is adhere | attached on the surface of the perforated metal panel 6 by the adhesive agent which is not shown in figure.

FIG. 7 is a cross-sectional view showing a state in which the floor panel of FIG. 6 is turned upside down in order to drill a hole in the surface material 5, and FIG. 8 is a cross-sectional view showing a state when a hole is drilled in the surface material using a punch and a die. 9 is a cross-sectional view showing a floor panel with a hole formed in the surface material, and FIG. 10 shows a concave rounded ridge, an annular flat portion, and a doll formed at the circumference of the die. It is an enlarged sectional view. Here, the doll ball 17a is an opening for accommodating the punched part while at the same time performing the punch press process.

Then, as shown in FIG. 7, the hole 8 facing the round hole 9 of the metal panel 6 is punched by the punch descending in the direction of the arrow P in the state in which the floor panel of FIG. 6 is turned upside down. A punch press working is performed on the surface material 5. That is, as shown in FIG. 8, the punch 15 slightly smaller than the diameter of the round hole 9 (for example, if the diameter of the round hole 9 is 9 mm, the diameter of the punch 15 is 8 mm). It descends through the round hole 9 and passes through the puppet hole 17a of the die 17 to punch the hole 8 in the surface material 5, thereby rounding the hole 9 and the surface material of the metal panel 6. The hole 8 of (5) is formed in the same center.

Furthermore, in the embodiment of the present invention, the ridge 17b is formed at the periphery of the doll hole 17a of the die 17 so as to increase in a concave rounded shape as it approaches the punch 15. Strictly, as shown in Fig. 10, the upper end of the ridge 17b is an annular flat portion to maintain the strength of the doll 17d formed along the puppet 17a of the die 17. 17c is formed, and this ridge 17b also serves to prevent the surface material 5 from being pushed toward the doll hole 17a with respect to the punch 15. Accordingly, the surface material 5 is supported on the die 17 by the vertical pressure of the metal panel 6 and the punching 15, and at the same time the hole 8 of the surface material 5 is formed by the lowering of the punch 15. Is formed. Further, the edges of the surface material 5 are recessed around the holes 8 of the surface material 5, that is, convex rounded shapes, corresponding to the raised portions 17b and the annular planar portions 17c of the die 17. An annular planar portion 5b is formed between the base 5a and the hole 8.

By the above-described configuration, the floor panel having a plurality of holes 8 and 9 is convex rounded shape of the surface material 5 when turned over from the state shown in FIG. 9, that is, returned to normal use and used for the double bottom structure. Due to the raised portion 5a of the shoe, the bottom surface of the shoe is cut off by the edge of the hole 8 or the edge of the hole 8 is broken by contact, thereby preventing dust from being generated.

On the other hand, aluminum is used as the material of the metal panel 6 of the present embodiment, but a metal such as steel may be used. In addition, the surface material 5 may be a non-metal floor material, preferably a floor material made of a synthetic resin material.

The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the technical idea of the present invention.

According to the manufacturing method of the perforated floor panel of this invention as mentioned above, and the perforated floor panel manufactured by the manufacturing method, it is possible to punch many holes using a punching press, Machining time can be shortened, and since the punch punches a hole in the surface material through the hole of the pre-drilled metal panel, it is possible to prevent the hole of the metal panel and the hole of the surface material from misaligning and twisting.

In addition, the die formed with a doll hole through which the punch passes and forms a hole is formed in the periphery of the doll hole so as to increase as it approaches the punch, so that burrs or crushes fall around the hole drilled in the surface material. You can prevent it.

Claims (4)

In the method of manufacturing a perforated floor panel having a plurality of holes formed by bonding a non-metal surface material to the surface of the metal panel having a rib on the back, A first step of forming a plurality of holes in a metal panel having ribs on the back by punching press processing; A second step of adhering the non-metal surface material to the surface of the metal panel in which the plurality of holes are formed by the first step; The metal panel to which the surface material is adhered by the second step is placed in the die with the surface material down, and the punch is lowered through the plurality of holes formed in the metal panel, thereby forming a plurality of holes in the surface material by punching press processing. Method for manufacturing a perforated floor panel comprising a third step. The method of claim 1, wherein the die is formed with a puppet ball through which the punch passes to perform punching press processing, and a ridge formed on the circumference of the puppet ball that rises as it approaches the punch is formed. A method of manufacturing a perforated floor panel. A first step of forming a plurality of holes in a metal panel having ribs on the back by punching press processing; A second step of adhering the non-metal surface material to the surface of the metal panel in which the plurality of holes are formed by the first step; The metal panel to which the surface material is adhered by the second step is placed in the die with the surface material down, and the punch is lowered through the plurality of holes formed in the metal panel, thereby forming a plurality of holes in the surface material by punching press processing. The perforated floor panel according to claim 3, wherein the center of the hole formed in the metal panel and the center of the hole formed in the surface material are the same. The perforated floor panel according to claim 3, wherein the hole formed in the surface material has a shape in which the periphery thereof is recessed.