JP3467731B2 - Formwork panel and its manufacturing apparatus - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal form panel used as a concrete frame for foundation works and wall works in civil engineering construction.

[0002]

2. Description of the Related Art In the field of civil engineering, a metal form panel is often used as a formwork for concrete structures in foundation works, wall works, and the like. Conventionally, as this metal form panel, there is one shown in FIGS. 1 and 2.

This formwork panel 20 has a large rib portion 21 and a small rib portion 22 formed on a metal plate to form a substantially corrugated plate shape, and slits 24 are intermittently formed in a flat portion 23 adjacent to the small rib portion 22. I have set up. By forming the slit 24, the form panel 20 can be bent at the slit 24 portion. Further, the small rib portion 22 is provided with a drain hole 25, and the large rib portion 21 is provided with a separator mounting hole 26.

However, the conventional form panel 20 has a problem that the slit 24 cannot be accurately formed. That is, this slit 24 is
As shown in, with the steel plate K placed on the lower mold 19,
Although the punching die 18 is lowered from above and punching is performed, in reality, the punching die 18 is pressed from above the flat portion 23.
Even if the slit 24 is lowered to form the slit 24, a linear hole having a distorted shape is simply bored, and the slit shape does not have a regular shape that can be provided as a product.

Further, in this conventional form panel 20, a slit 24 is formed in the small rib portion 22, and a drain hole 25 is formed in a flat portion 23 which is a portion different from the small rib portion 22. Therefore, there is a problem that the molding process becomes complicated. Positioning is performed when the slit 24 is formed in the small rib portion 22, and the drainage hole 2 is formed in the flat portion 23.
This is because it is necessary to repeat the same steps such as positioning when the 5 is drilled. If the slit 24 and the drainage hole 25 are formed in the same portion (for example, the small rib portion 22), the number of positioning and the steps associated therewith can be reduced, so that the molding step can be simplified.

[0006]

The problem to be solved is that in the conventional form panel, the cuts are formed in a distorted shape, and there is still room for simplifying the forming means. .

[0007]

Means for Solving the Problems A description will be given with reference to FIGS. 4 to 8. In the formwork panel 1 according to the present invention, a plurality of large rib portions 3 and a plurality of small rib portions 4 are alternately formed on a metal panel body 2, and a plurality of separator mounting holes 5 are formed in each large rib portion 3.
A plurality of pairs of water drainage holes 6 are formed in each small rib portion 4, and a cut 7 is formed between each pair of water drainage holes 6 to connect the pair of water drainage holes 6 with each other. It will be done.

Also, the formwork panel manufacturing apparatus 1 according to the present invention.
0 is an uncoiler 11 that intermittently unwinds a steel plate coil made of metal, and a looping guide table 12 that is provided downstream of the uncoiler 11 and that guides a loop-shaped steel plate K.
And is provided downstream of the looping guide table 12,
The steel plate K is provided with an upper tooth profile roller 13a and a lower tooth profile roller 13
a forming machine 13 for alternately forming a plurality of large rib portions 3 and small rib portions 4 on the steel plate K while gradually feeding deeper the rib grooves while feeding the steel sheet K through After forming a plurality of separator mounting holes 5 in each large rib portion 3 and forming a plurality of pairs of drainage holes 6 in each small rib portion 4, the plurality of pairs of drainage holes 6 are formed between each pair of drainage holes 6. A pre-punch press 14 that shear-forms a cut 7 communicating with the drainage hole 6
And a cutting press 16 provided downstream of the pre-punch press 14 for cutting the steel plate K into a constant length to form the formwork panel 1.
And a stacking machine 17 which is provided downstream of the cutting press 16 and stacks the formwork panels 1.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a formwork panel 1 according to the present invention is shown in FIGS. 4 and 5. This formwork panel 1
In the panel body 2 made of hot-dip galvanized steel sheet, a plurality of large rib portions 3 and small rib portions 4 are alternately formed. Each large rib portion 3 has a plurality of separator mounting holes 5 formed therein. In addition, a plurality of pairs of drainage holes 6 are formed in each of the small rib portions 4, and a cut 7 is formed between each pair of drainage holes 6 for communicating the pair of drainage holes 6 with each other. Sheared.

The formwork panel 1 is manufactured by the formwork panel manufacturing apparatus 10 according to the present invention. An embodiment of this form panel manufacturing apparatus 10 is shown in FIGS. 6 and 7. The manufacturing apparatus 10 includes an uncoiler 11 and a looping guide table 1 from the upstream side to the downstream side of the manufacturing line.
2, molding machine 13, pre-punch press 14, cutting press 1
6 and the stacker 17 are arranged in series. In this embodiment, the pre-punch press 1
A straightening roller 15 is provided between the cutting roller 4 and the cutting press 16.

The uncoiler 11 intermittently unwinds a steel sheet coil made of hot-dip galvanized steel sheet, and the looping guide table 12 guides a steel sheet K which is loop-shaped and whose loop diameter changes intermittently. is there.

Further, the forming machine 13 forms a plurality of large rib portions 3 and small rib portions 4 alternately on the steel plate K while feeding the steel plate K through the upper tooth profile roller 13a and the lower tooth profile roller 13b thereof. To do. Upper tooth roller 13
Both of the a and the lower tooth profile roller 13b are set such that the height of their tooth profile gradually increases toward the downstream in 36 steps. Therefore, in the steel plate K fed between these two tooth profiles, the large rib portion 3 and the small rib portion 4 are formed so that the rib groove becomes gradually deeper as it goes downstream.

Further, the pre-punch press 14 is provided with a numerically controlled traveling table, and a plurality of separator mounting holes 5 are formed in each large rib portion 3 under automatic control. Further, in the pre-punch press 14, a plurality of pairs of drainage holes 6 are formed in each of the small rib portions 4, and then the cuts 7 communicating the drainage holes 6 are formed between the pairs of drainage holes 6.
Are formed by shearing. The drain hole 6 can be formed by drilling or punching.

After forming the water draining hole 6 and the cut 7, the straightening roller 15 presses the entire steel plate K including the cut 7 from above and below to correct the shape of the cut 7 and the step formed on the steel plate K. To do.

The cutting press 16 is provided with a numerically controlled traveling table and cuts the steel plate K into a fixed length by automatic control to form the form panel 1. The stacking machine 17 has a vertically movable lifter 17a, and sequentially stacks the formwork panels 1 on the lifter 17a. The plurality of formwork panels 1 that have been stacked are automatically carried out by a carrier.

In both the formwork panel 1 and the formwork panel manufacturing apparatus 10 according to the present invention, the cut 7 is formed by punching while the pair of drain holes 6 are communicated with each other. It can be well-organized. Since both ends of the cut 7 are already formed by the pair of drain holes 6, as shown in FIG. 8, the shearing force of the punching die 18 can be applied smoothly and smoothly to the steel plate K. is there.

By the way, in the prior art, as shown in FIG. 3, since the punching die 18 is directly acted on the steel plate K having no holes, a large force is required to shear the steel plate K. Since the steel plate K is deformed into strain by the large force, the shape of the cut 7 is distorted. The formwork panel 1 and the manufacturing apparatus 10 thereof according to the present invention can solve these problems.

Further, both the mold panel 1 and the mold manufacturing apparatus 10 according to the present invention are designed to form both the drain hole 6 and the cut 7 in the small rib portion 4, so that the steel plate K is stopped. Both the drain hole 6 and the cut 7 can be formed in this state. Therefore, it is possible to reduce the number of steps of positioning and the steps associated therewith, and it is possible to simplify the molding step.

[0019]

EFFECTS OF THE INVENTION In both the mold panel 1 and the mold panel manufacturing apparatus 10 according to the present invention, the cut 7 is punched in a state where the pair of water drain holes 6 communicate with each other, so that the form is adjusted. Can be

Further, since both the water drainage hole 6 and the cut line 7 are formed in the small rib portion 4, the number of steps involved in positioning and the like can be reduced, and the molding step can be simplified. . As a result, productivity can be improved and the cost of the formwork panel can be reduced.

[Brief description of drawings]

FIG. 1 is a front view showing a conventional form panel.

2 is a plan view of the formwork panel shown in FIG. 1. FIG.

FIG. 3 is an explanatory view showing a conventional cut forming means.

FIG. 4 is a front view showing an embodiment of the formwork panel according to the present invention.

5 is a plan view of the formwork panel shown in FIG. 5. FIG.

FIG. 6 is a side view showing an embodiment of an apparatus for manufacturing a formwork panel according to the present invention.

7 is a plan view of the manufacturing apparatus shown in FIG.

FIG. 8 is an explanatory view showing a means for shearing the cut in the present invention.

[Explanation of symbols]

1 Formwork panel 2 panel body 3 large ribs 4 small ribs 5 Separator mounting hole 6 drainage holes 7 cuts 10 Formwork panel manufacturing equipment 11 Uncoiler 12 Looping guide table 13 Molding machine 13a Upper tooth roller 13b Lower tooth roller 14 Pre-punch press 15 Straightening roller 16 cutting press 17 stacker 17a lifter 18 punching die 19 Lower mold 20 Formwork panel 21 Large rib 22 Small rib 23 Flat part 24 cuts 25 drainage hole 26 Separator mounting hole K steel plate

Claims (2)

(57) [Claims] 1. A plurality of large ribs (3) and small ribs (4) are alternately formed on a metal panel body (2), and a plurality of separator mounting holes (3) are formed in each large rib (3). 5), a plurality of pairs of drainage holes (6) are formed in each small rib portion (4), and the paired drainage holes (6) are provided between each pair of drainage holes (6). Form panel formed by shearing cuts (7) communicating with (6). 2. An uncoiler (11) for intermittently unwinding a metal steel plate coil, and a looping guide table (1) provided downstream of the uncoiler (11) for guiding a loop-shaped steel plate (K).
2) and is provided downstream of the looping guide table (12),
While feeding the steel plate (K) between the upper tooth profile roller (13a) and the lower tooth profile roller (13b), the steel plate (K) is provided with a plurality of large rib portions (3) and small rib portions (4). Molding machine (1
3) and a plurality of separator mounting holes (5) are provided in each large rib portion (3) provided downstream of the molding machine (13),
After forming a plurality of pairs of drainage holes (6) in each small rib portion (4), the drainage holes (6) are provided between each pair of drainage holes (6).
A pre-punch press (14) that shear-forms a notch (7) communicating with the pre-punch press (14), and cuts a steel plate (K) into a predetermined length to form a form panel (1). A mold panel manufacturing apparatus comprising a cutting press (16) for cutting and a stacking machine (17) provided downstream of the cutting press (16) for stacking a plurality of mold panels (1).