JPH0394912A - Cutting method and device for formed sheet - Google Patents

Abstract

PURPOSE:To cut a flat sheet also before and after forming and to make cutting work easy by cutting an unbent part during a run after a continuous flat sheet is transferred from an uncoiler through a leveler and parts to be bent are cut in an arbitrary length and are formed into an arbitrary shape with a forming machine. CONSTITUTION:The continuous flat sheet is continuously delivered from the uncoiler and is transferred to a notch cutting machine 3 with the leveler 2. The notch cutting machine 3 is enough if it is a machine with which an arbitrary length can be notching cut and this cut is performed to cut the part 7 corresponding to a bent part when products are finally made and slits are made with a press cutting machine and the like so as to leave the whole or a part of the part 8 in the flat state without cutting. Next, the sheet is bent and formed into a desired shape with the forming machine 4. And, the flat sheet-shaped part 8 where is left without cutting is cut with a flying cutting device 5.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a method for cutting a blank board such as a building member, and a cutting device therefor, and in particular, to a cutting method for cutting a flat board, which is an exterior wall material, such as a siding board. The present invention relates to a cutting method and a cutting device for obtaining hollow-shaped boards such as siding boards.

(Prior Art) Conventionally, a continuous plate was cut into a continuous flat plate using a press or the like, and then cut into an arbitrary length. In addition, as a manufacturing method for resistant and fireproof panels,
As shown in Publication No. 30175, ``A metal molded hoop material made by bending a long belt-shaped metal plate into a horizontal forest part with both side edges protruding inwardly and outwardly, sandwiching the concave part. At the same time as transporting the material in the longitudinal direction, liquid adhesive is sprinkled on the upper surface of the metal hoop material, and an appropriate amount of fireproof insulation material is dropped into the recessed part of the metal molded hoop material. A pushing member connected to a pushing mechanism located close to the recess is sufficiently pushed into the inner part of the recess, and then the fireproof and heat insulating material is refilled and dropped over the entire upper surface of the metal molded hoop material while maintaining a considerable thickness. After adjusting the thickness to a predetermined thickness using a thickness regulating member, a backing paper is supplied onto the surface of the fire-proof and heat-insulating member, and the hidden material is supported by a movable heat-pressing mold to form the heat-proof and fire-proof heat insulating material. ``Chu 5 Fire prevention panel manufacturing method'', which is characterized by shaping insulation material to a specified thickness, gluing it together with a metal molded hoop material, and cutting it to the required length, but this is a very long one. Ren@! Molded and
This is a method and apparatus for filling a fireproof insulation material and cutting the molded and filled material into any desired length.

It is also practiced to cut the flat plate to a desired length and then roll it into the desired shape.

(Problems with the prior art) In the conventional technology described above, the method and device for cutting a molded plate after forming an arbitrary shape are as follows: ■The cutting device is complicated and has high performance. You will need something, especially
When cutting a deck plate or the like, for example, in a special T-shape, there is a disadvantage that it deforms and the commercial value is significantly inferior.

■When changing the thickness of a continuous flat plate during processing, plate loss occurs. In addition, in the case of continuous molding, the processing parts of the molding machine become complicated, and the price of the molded stone becomes expensive.

Also, methods and devices that cut a flat plate into arbitrary lengths and then mold them (this corresponds to the case of non-continuous pieces)
■It takes time to adjust the roll when changing plate thickness.

■Roll slips can cause trouble in the molding machine (l bumps, overlapping plates, etc.).

■The shape of the top and end cannot be made as desired, and to solve this problem, a large number of rolls must be used, resulting in the equipment itself becoming long.

There are various problems such as.

(Technical problem to be solved by the present invention) This invention
In view of the above-mentioned problems of the prior art, the cutting device does not require a complicated and high-performance device, and does not cause deformation during cutting, and does not cause collisions or overlapping of sheets even with short lengths. The technical problem is to obtain a method for cutting a hollow plate, which does not cause plate loss when changing the plate thickness, and which does not require time for roll adjustment, and a cutting device for the same. .

(Technical means for solving the problem) In order to solve the above-mentioned technical problem, the present invention transports a continuous flat plate from an uncoiler to a leveler, bends it, and then bends the flat plate as it is. There is a notch cutting process in which the part that can be bent when molded is cut to an arbitrary length, leaving the blank part, and a process in which this continuous flat plate with the notches is formed into an arbitrary shape using a molding machine. A method for cutting a molded plate comprising a running cutting process in which the parts not cut in the notch cutting process are cut. In addition, there is a transfer device that transfers a continuous flat plate, and a notch cutting device that leaves a part that cannot be bent as a flat plate when the flat plate is bent in the next process, and cuts the part that can be bent to an arbitrary length when molded. A forming plate cutting device consisting of a machine, a forming machine that bends and forms the notched flat plate into an arbitrary shape, and a running cutter that cuts the uncut portion of the flat plate that cannot be bent. Use as a means.

Further, the above technical means operates as follows. That is, since the portion that will become the bent portion after molding is cut in advance when it is in a flat plate state, it is possible to manufacture a molded plate by cutting only the remaining flat plate portion after molding the bent portion and the like.

(Special Effects of the Invention) The above technical means of the present invention produces the following specific effects: (1) Since it is molded in the form of a continuous flat plate, it is possible to reduce It is extremely easy to obtain a blank template.

■Since it is molded in a continuous state, the molding dimensions of the top and end are stable during molding.

■When molding a flat plate after cutting, work was done with a gap between the front plate and the back plate to prevent slips and other problems, but since the plate is molded as a continuous flat plate, there is a gap between the front plate and the back plate. Since it is not necessary to have a mold, the loss in molding work is significantly reduced.

■Since it is a flat plate, a simple cutting device is required for cutting before the shading process.Furthermore, since it is only necessary to cut the flat plate part after the shading process, the cutting process can be performed using an extremely simple cutting device. It can be carried out.

As mentioned above, it has many effects such as increasing productivity and preventing troubles.

(Example) Next, an example of the technical means of the present invention will be described based on the drawings.

Figure 1 is an explanatory diagram of an apparatus for carrying out the present invention, and Figure 2 is a diagram showing the part to be folded and bent before cutting with the notch cutting machine (3) shown in Figure 1. Figure 3 is an enlarged plan view of the corresponding part cut out from a continuous flat plate, and Figure 3 is an enlarged plan view of the part cut out and cut out as shown in Figure 2. The perspective view of the example, Figure 4, is an enlarged view showing the part that is formed in Figure 3 and then cut by the running cutter in the next step (in other words, the flat part that remains unbent). The plan view, FIG. 5, is a perspective view of a deck plate with a T-shaped cross-section, which can be cut very well, especially by the technique of the present invention. The molded plate cutting method and its cutting device of the present invention are such that a continuous flat plate is continuously sent out from an uncoiler (1), and a leveler (2) performs notch cutting to facilitate cutting with a notch cutter (3). Transfer to machine (3). Notch cutting machine (3
) can be any cutting machine as long as it is a notch cutter (3) that cuts the notch to the length of the desired size to be molded into the final product. It must be possible to leave a portion of the pipe uncut.

In other words, when When cutting to a desired length before bending and forming, the cut is not completely cut, but calculated in advance so that there will be a cut part and an uncut part, like a perforation. conduct. This cutting is done using a press cutting machine, etc. to cut the part corresponding to the folded part and leave all or part of the flat part uncut. Add it in one step or several steps.

Note that if the end of the flat plate is cut into a notch of an arbitrary width, subsequent processes such as bending and press working can be easily carried out, and therefore it may be necessary to cut out the notch together with other cut parts in advance.

The cut portion (7), which will eventually become the bent portion (9) when molded, is cut while it is still a flat plate (see Figure 2).Then, the molding machine (4) is used to shape it into the desired shape. This die-forming machine (4), which performs bending and forming, is driven by multiple divisions so that the circumferential speed of the forming roll can be changed in multiple stages (the number of divisions can be selected depending on the complexity of the processed shape, based on various considerations in the design). It is possible to change the circumferential speed of each.It would be better if the efficiency of the round shape could be improved by, for example, making the inlet side slower and the outlet side faster. Needless to say.

After bending and forming with this hollow-forming machine, the remaining portion that was not cut as described above is further cut by the running cutting device (5).
This is because when bending and forming, the portion that cannot be bent as a flat plate remains uncut, so this flat portion (8) is cut. } Also, what is shown by (6) in FIG. 1 is an accumulator, which is a retention part that is necessary for continuous operation while adjusting the difference in working time between the notch cutting process and the cylindrical process.

In addition, when setting the tip of the flat plate in the running cutter (5), the tip of the flat plate may be deformed. It is conceivable to provide a roll or the like to ensure reliable setting, and it goes without saying that various devices, such as photoelectric switches, etc., may be provided as necessary to ensure safety.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a schematic side view of the entire apparatus for carrying out the invention, and FIG. Fig. 3 is a plan view showing the notch section to be cut; Fig. 3 is a partial perspective view showing the part of the plate cut into a notch cut into the shape of an actual example; Fig. 4 is a partial perspective view showing the final shape after the cutting process FIG. 5 is a plan view showing the uncut portion of the flat plate portion to be cut, and FIG. 5 is a perspective view showing a deck plate having a T-shaped cross section. The symbols used in the drawings are: (1)... Uncoiler (3)... Notch cutting machine (5)... Running cutting machine (7)... Notch part (8) that becomes the bending part )...
The part that remains flat after the hollow mold (9)...The folded part (2)...The leveler (4)...The molding machine

Claims (2)

[Claims] (1) A continuous flat plate is transferred from an uncoiler to a leveler, and after being bent and formed, the part that cannot be bent is left as a flat plate, and the part that can be bent after forming is cut into a desired length. The process of forming a molded plate consists of a step of molding the continuous flat plate with the notches into an arbitrary shape using a molding machine, and then a running cutting step of cutting the parts that were not cut in the previous notch cutting step. Cutting method. (2) A transfer device that transfers a continuous flat plate, and a notch that leaves the unbendable portion of the flat plate as a flat plate when it is bent and formed in the next process, and cuts the bendable portion to an arbitrary length when the flat plate is formed. A forming plate cutting device comprising a cutting machine, a forming machine that bends and forms the notched flat plate into an arbitrary shape, and a running cutter that cuts the uncut portion of the flat plate that cannot be bent. .