JP2006118304A - Manufacturing device for metal form panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing device 10 for a metal form panel which excels in economic efficiency and productivity. <P>SOLUTION: The manufacturing device 10 comprises an uncoiler 11 for straightening and feeding a steel plate 20 reeled up in a roll, a cutting machine 13 for cutting the steel plate 20 fed from the uncoiler to have a predetermined length, a roll forming machine 14 for forming the steel plate 20 cut by the cutting machine into a predetermined shape while conveying it unidirectionally, a slitting processing means 17 fitted to the roll forming machine for forming a conveyance directional slit in the steel plate 20 under conveyance, and a pressing machine 15 for pressing a predetermined hole at a predetermined position of the steel plate 20 formed by the roll forming machine 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a metal mold panel manufacturing apparatus that automatically and consistently manufactures metal mold panels.

From the viewpoint of protecting the global environment, metal formwork panels formed by processing and forming steel sheets are becoming popular in place of conventional plywood formwork. In general, metal formwork panels have a corrugated cross-sectional shape to maintain strength. Each has a plurality of holes in place, holes for inserting separators, holes for draining concrete excess water, and bending. A slit or the like is provided to facilitate the processing. This type of metal formwork panel is automatically and consistently manufactured by a manufacturing apparatus as disclosed in Patent Document 1, for example.
Japanese Patent No. 3466731

  The conventional apparatus for manufacturing a form panel including the one described in Patent Document 1 has been configured to press holes and slits after forming a steel sheet into a corrugated cross section. In order to process holes and slits simultaneously, it is necessary to press at a high pressure using a complicated press mold, so that there are problems that the mold manufacturing cost is high and the durability of the mold is not good. If the holes and the slits are processed separately, the number of press processing steps increases, resulting in a problem that productivity is deteriorated.

  Then, this invention makes it the subject to provide the manufacturing apparatus of the metal mold panel excellent in economical efficiency and productivity which can manufacture a metal mold panel efficiently without cost.

  In order to solve the above problems, the present invention is configured as follows. That is, the metal mold panel manufacturing apparatus according to claim 1 cuts the steel sheet supplied from the uncoiler into a certain length, and an uncoiler that supplies the steel sheet wound in a roll shape. A cutting machine, a roll forming machine for forming the steel sheet cut by the cutting machine into a predetermined shape while conveying the steel sheet in a certain direction, and a slit in the conveying direction on the steel sheet being conveyed, attached to the roll forming machine. It is characterized by comprising slit processing means for processing and a press machine for pressing a predetermined hole at a predetermined position of a steel plate formed by the roll forming machine.

  According to this configuration, the slit in the conveying direction is processed by the slit processing means during the process of forming the steel sheet into a predetermined shape by the roll forming molding machine, and the pressing machine performs only the pressing of the hole, so the pressing process The number can be reduced, and pressing can be performed at a low pressing pressure using a simple pressing die.

  The slit processing means is configured to process a slit in the transport direction on the steel sheet by rotating a pair of shear rollers provided between the steel sheets relatively to the steel sheet as described in claim 2. Then, the slit can be processed efficiently.

  The metal mold panel manufacturing apparatus according to the present invention has a configuration in which a slit in the conveying direction is processed by a slit processing means during a process of forming a steel plate into a predetermined shape by a roll forming machine. The press die can be simplified, the press pressure can be reduced, and the number of press working steps can be reduced to improve the productivity.

  The following embodiment, which is the best mode for carrying out the present invention, is an apparatus for manufacturing the metal formwork panel shown in FIG. The metal formwork panel will be briefly described below. The metal formwork panel 1 has a generally corrugated overall shape in which connecting portions 3 that connect ends of a pair of adjacent rib portions 2 and 2 are alternately arranged in parallel. Small ribs 4 in the vertical direction are formed. A plurality of separator holes 6 for inserting the separator and inspection holes 7 for checking the state of filling concrete and discharging concrete surplus water are alternately formed in the rib portion 2 at equal intervals. The separator hole 6 is formed in a C-shaped cut with a part of the circular outline, so that it can be arbitrarily selected whether to keep the closed state as it is or punch it into a circular shape and open it. It has become. The rib portion 2 and the connecting portion 3 are formed with a plurality of vertical slits 8 on the same line at equal intervals for facilitating bending of the formwork panel. The slit 8 is a simple cut having no lateral width.

  FIG. 2 is an overall view of an apparatus for consistently manufacturing the metal formwork panel 1 from a thin steel plate whose surface is plated with zinc or the like. The metal mold panel manufacturing apparatus 10 includes an uncoiler 11, a leveler 12, a cutting machine 13, a roll forming machine 14, a press machine 15, and a pillar 16 in this order from the upper side to the lower side of the manufacturing line. It is arranged.

  First, the uncoiler 1 pulls out the steel plate 20 by a certain length from a steel plate roll 20a obtained by winding the steel plate 20 into a roll. The drawn steel sheet 20 is stretched straight by taking up the curl by the leveler-11. Then, it is cut into a certain length by the cutting machine 12.

  As shown in FIG. 3, the roll forming machine 14 includes a plurality of upper and lower pairs of molding rollers 13 a and 13 b in which tooth molds corresponding to the cross-sectional shape of the formwork panel 1 are formed on the outer peripheral surface. The height of the tooth mold of each molding roller is set so as to gradually increase from the upper side to the lower side in the transport direction. When the plurality of pairs of forming rollers 13a and 13b are rotated in opposite directions and the steel plate 20 is passed from the upper side, the steel plate is gradually formed into a predetermined shape while being conveyed to the lower side.

  As shown in FIGS. 4 and 5, a plurality of pairs of upper and lower shear rollers 17 a and 17 b are provided as slit processing means 17 at the lower end of the roll forming machine 14 with the steel plate 20 interposed therebetween. . The upper shear roller 17a has a large number of sheared portions A formed at equal intervals on the outer peripheral surface. This shearing part A has a tapered shape with a large diameter at one of the left and right ends when viewed from the conveying direction of the steel sheet. On the other hand, the lower shear roller 17b has the same diameter as viewed from the conveying direction of the steel plate. In the shear rollers 17a and 17b, the end portion on the large diameter side of the upper shear roller 17a and the end portion on the opposite side of the lower shear roller 17b are substantially the same in the left-right direction as viewed from the conveying direction, and the both end portions are vertically It is arranged so as to overlap slightly. By rotating both the shear rollers 17a and 17b relative to the steel plate 20 being conveyed, the slit 8 in the conveyance direction is processed in the steel plate 20 by the shearing action of both rollers.

  Also, on the lower side of the slit processing means 17, as shown in FIGS. 4 and 6, a pair of upper and lower strain removal rollers 18a, as strain removal means 18 for removing the strain B (see FIG. 5) generated during the slit processing. 18b is provided. These strain removing rollers 18a and 18b are adapted to remove the strain B by pressing the periphery of the slit 8 from both the upper and lower sides.

  Next, the separator hole 6 and the inspection hole 7 are simultaneously pressed by the press machine 15 on the steel plate 20 formed by the roll forming machine 14. Thereby, the formwork panel 1 is completed. The completed formwork panel 1 is stacked on the lifting platform 16 a by the pillar 16.

  This metal mold panel manufacturing apparatus has high productivity of the entire line because the number of steps of the press machine 15 is only one step of pressing the separator hole 6 and the inspection hole 7. For example, a 15 m / min formwork panel can be manufactured. This production capacity is more than twice that of conventional devices. Further, since the slit machine is not processed by the press machine 15, the press pressure can be kept low, and the durability of the press mold can be increased to three times or more that of the conventional apparatus.

  Although the Example disclosed about the manufacturing apparatus of the metal formwork panel shown in FIG. 1, this invention has not only the said metal formwork panel but the slit of the same direction as the conveyance direction of the steel plate by a roll forming machine. It can also be applied to other metal formwork panels.

It is (a) front view and (b) top view of a metal formwork panel. It is a whole front view of the manufacturing apparatus of a metal mold panel. It is a side view of a forming roller. It is a front view of a slit process means and a distortion removal means. It is (a) front view and (b) side view which expanded and displayed a part of slit processing means. It is (a) front view and (b) side view which expanded and displayed a part of distortion removal means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Metal formwork panel 10 Metal formwork panel manufacturing apparatus 11 Uncoiler
12 Leveler
DESCRIPTION OF SYMBOLS 13 Cutting machine 14 Roll forming molding machine 15 Press machine 16 Slit processing means 16a, 16b Shear roller 17 Distortion removal means 20 Steel plate

Claims (2)

  An uncoiler that feeds the rolled steel sheet straightly, a cutting machine that cuts the steel sheet supplied from the uncoiler to a certain length, and transports the steel sheet cut by the cutting machine in a certain direction. A roll forming machine for forming into a predetermined shape, slit forming means attached to the roll forming machine for processing slits in the conveying direction on the steel sheet being conveyed, and a steel sheet formed by the roll forming machine. An apparatus for producing a metal mold panel, comprising: a press machine that presses a predetermined hole at a predetermined position. 2. The metal mold according to claim 1, wherein the slit processing means is configured to process a slit in a conveying direction on a steel plate by rotating a pair of shear rollers provided with the steel plate interposed therebetween relative to the steel plate. Frame panel manufacturing equipment.

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