JPS6083733A - Manufacture of end part closed deck plate - Google Patents

Abstract

PURPOSE:To manufacture continuously a deck plate which is closed both end parts by working a slit in a prescribed position of a material, pressing and closed a crest part before and behind the slit of a deck plate formed body, and cutting it at the slit position. CONSTITUTION:As for a hoop 3 which is passed through an uncoiler 1 and a leveler 2, a slit 74 is punched at a position 71 of every prescribed interval in the lengthwise direction of a deck plate 7. Also, the slit 74 is punched so as to cross a material part 72a to become a crest part 72 in the width direction, and also at an interval 73a corresponding to a bottom face 73 of a trough part. Subsequently, the hoop proceeds to a forming roll 5, and it is formed to a deck plate formed body 51 of a prescribed shape in which the slit is worked in the crest part 72 at a prescribed interval. Next, it is subjected to a closed working at a slit working position by an end part closing and cutting machine 6, and also cut, and becomes an end part closed deck plate 7 of a prescribed length.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for manufacturing a deck plate with closed ends, and more specifically, the present invention relates to an improvement in a method for manufacturing a deck plate with closed ends, and more specifically, the present invention relates to an improvement in a method for manufacturing a deck plate with closed ends. The present invention relates to a method of manufacturing an end-closed deck plate of a predetermined length by pressing the peaks of the body to crush and close the peaks, and cutting at the locations.

As is well known, deck plates made of steel plates with alternating peaks and valleys are widely used as temporary floors for pouring concrete, but when the deck plates are stretched between beams, Used as a so-called end-closed decking plate, which prevents concrete from flowing out and widens the distance between the floor and ceiling by flattening the peaks of the parts that rest on the beams at both ends of the decking plate. It's becoming commonplace to do so.

By the way, in order to manufacture an end-closed deck plate, first, as is customary, a deck plate with a predetermined shape of peaks and valleys lined up in parallel is molded, and if necessary, it is cut to a predetermined length and then transferred to the molding line. It is customary for the deck to be transported to an end-closing device installed separately and then subjected to end-closing processing, which requires additional man-hours and extra building space because of the transportation process. Since the plate forming line and the end closing device are separate, there are problems such as limited production efficiency, and the end closing process is incorporated into the forming line to consistently process the end closing deck from the material strip. Although a method that can process even the plate has been desired, it has not been realized because the method of closing the end has a drawback, and it has not been possible to crush the peaks of the deck plate molding and close it with good results.

The object of the present invention is to provide a method for continuously creating deck plates of a predetermined length with both ends closed by incorporating an end closing process into a molding line, and to provide a method for manufacturing a deck plate with closed ends. A slit is machined at a predetermined position in the material during the flow of the plate forming line, and an end closing/cutting machine presses the ridges before and after the slit of the deck plate molded body to close the crushed ridges. , relates to a method of manufacturing an end-closed deck plate of a predetermined length, characterized in that the plate is cut at the slit position.

The method of the invention will now be described with reference to embodiments of the accompanying drawings. FIG. 1 shows an example of a deck plate forming line suitable for carrying out the present invention, and as usual, an uncoiler 1,
The material strip 3 that has passed through the leveler 2 is placed at positions 71 at predetermined intervals in the length direction of the deck plate 7 by a slitting machine 4.
Slits 74 are punched out across the material portions 72a that are to become the peaks 72 in the width direction and at intervals 73a corresponding to the bottom surfaces 73 of the valleys.

The material strip 3 with the slits 74 processed next advances to the forming rolls 5, where it is formed into a deck plate molded body 51 of a predetermined shape with slits in the peaks 72 at predetermined intervals, and then The plate is subjected to a closing process at the slit processing position by a partial closing/cutting machine 6 and is cut into an end closing deck plate 7 having a predetermined length.

The end closing and cutting method is performed, for example, as shown in FIG. Deck plate molded body 5 flowing out from the forming roll 5
1 passes through the end closing/cutting machine 6, when the peak cutting slit 74 is detected by a detection device (not shown), the punch 61, the upper cutting blade 64, and the lower cutting blade 62a of the end closing/cutting machine 6 are detected. The attached die 62 begins to move with the formed body at the same speed as the deck plate formed body 51, and the punch 61 starts forming the deck plate on top of the die 62 by lowering the upper part of the end closing/cutting machine 6. By pressing both sides of the slit 74 of the body, the peak is gradually crushed as shown in FIG. The plate molded body is cut, and the front part 75 becomes a deck plate 7 with both ends closed of a predetermined length, and the end closure/cutting machine 6
The punch 61 and the upper cutting blade 64 are raised and returned to their original positions, and the above operations are repeated to manufacture deck plates 7 of a predetermined length with both ends closed one after another.

In the above explanation, an example was explained in which slits were formed at the crests of the material in front of the forming rolls, but the point is that it is sufficient if the slits are formed in the ridges before the end closing process, and If there is a slotted groove in the part, when it is crushed from above by the punch 61, the top of the highly worked mountain will move away to both sides at the slit 74, as shown in Figure 6, and the cross-sectional shape will be left as shown in Figure 6. Closing work is carried out effortlessly to show changes.

Therefore, it is easy to understand that the same effect can be obtained by making cuts in the direction across the ridges at the cutting positions of the ridges after the deck plate is formed by passing through forming rolls.

As explained above, in the method of the present invention, a deck plate is formed from a material strip, and then the peaks are crushed and closed at a predetermined position, and the deck plate is manufactured by cutting into a predetermined length and closing both ends. It is now possible to perform this work on a series of molding lines, improving production efficiency, reducing costs by omitting the transportation process, and reducing the work area.・Although the work is simple as you only need to put the throat in, the practical effects are extremely large, such as good end closure performance.

[Brief explanation of drawings]

Fig. 1 is a side view showing an example of a forming line suitable for implementing the method of the present invention, and Fig. 2 is a slit 7) in a predetermined position of a material strip.
Fig. 3 is a perspective view showing a state in which slits have been made in the peaks at predetermined positions of the deck plate molded body, and Fig. 4 is for explaining the operation of the end closing and cutting device. FIG. 5 is a side view showing changes in the closed state of the peak, and FIG. 6 is a diagram showing changes in the end face of the peak. 1...Uncoiler, 2...Leveler, 3...Strip steel,
4... Slitting machine, 5... Forming roll, 51.
... Deck plate molded body, 6... End closing/cutting machine, 7... End closing deck plate, 74... Slit. Applicant's agent Patent attorney Kamoshi 1) Second son Figure 4

Claims (1)

[Claims] 1. In the method for manufacturing a deck plate with end closure, a slit is formed at a predetermined position of the material in the middle of the flow of the deck plate forming line, and the end closure/cutting machine is used to cut the deck plate molded body. Method 2 for manufacturing an end-closed deck plate of a predetermined length, characterized in that the peaks before and after the slit are pressed to close the crushed peaks and cut at the slit position, flow of the deck plate forming line In the method 3 for manufacturing an end-closed deck plate according to claim 1, in which a slit is formed at a predetermined position of the material strip before forming the ridges, the ridges are formed in the middle of the flow of the deck plate forming line. A method for manufacturing an end-closed deck plate according to claim 1, which comprises forming slits across the mountain portions at predetermined positions of the material after forming the portions.