JPS61229426A - Flat sheet forming machine - Google Patents

Abstract

PURPOSE:To increase the efficiency in a work by supporting respectively by each arm the lower part pressure roll for forming a crest part and by supporting via eccentric cam one part of the arm. CONSTITUTION:The roll 1 of larger diameter and the roll 2 of smaller diameter for forming are fitted at equal intervals to the upper part shaft 3 and a pressure roll 6 is arranged in opposition to the roll 1 to the lower part shaft 5. The roll 10 for the lower part pressure is further provided corresponding to the roll 2 and supported individually by an arm 11. In this case one end 11a of the arm 11 is supported on a beam 12 and the other end is supported by plural eccentric cams 13'. The pressure of the roll 10 is adjusted by the adjustment of the eccentric cam 13' in case of performing the forming of insulating material lined steel plate between rolls 1, 6 and 2, 10. The bend prevention of a flat plate is enabled with this method and the number of workers can also be reduced. The work efficiency is therefore increased and the cost is reduced.

Description

Detailed Description of the Invention (Field of Application) This invention is a method for making corrugated insulation long steel plates used for roofs, etc. in a so-called folded plate shaping machine by vertically adjusting the position of the pressurized lower roll. This invention relates to a folded plate shaping machine that stamps the plate with the steel plate side facing downward, thereby eliminating the need for reversing the folded plate when cutting and transporting the plate.

(Prior art) In order to form a long heat insulating steel plate into a corrugated shape using upper and lower pressure rolls, conventionally a large diameter roll and a small diameter roll a are used as shown in Fig. 5.
, b arranged at equal intervals on the same axis and the corresponding pressure rolls C, a long heat insulating steel plate S is inserted between each roll with the steel plate surface facing upward, and is shaped into a wave shape. A forming machine is used in which the downward pressure of the pressure rolls that form the troughs is adjusted using screws d, etc. for each pressure roll to prevent warping of the long insulation steel plate. In the folded plate forming machine, the downward pressure of the valley forming rolls can be adjusted on the upper surface of each roll, and the adjustment work can be performed very easily.

(Problem to be solved by the invention) However, in order to cut easily and accurately and beautifully the insulation type steel plate that is the raw material for folded plates, the cutting blade should be placed with the flexible insulation material on top. This was done by first cutting the surface of the material and then cutting the lower steel plate, and the raw material had to be turned over to be fed to the folding plate forming machine.

It also prevents damage to the insulation material, which is soft and easily damaged when being transported or placed on the roof for installation.

For ease of transport, it is customary for the steel plate surface to face downward. Therefore, it is necessary to turn the material over once when feeding it, and then turn it over again after molding, which is a waste of time and effort.
In the case of large plates, it is difficult to perform the reversing process, and a large space is required.

Therefore, in order to eliminate the need for one reversal operation, it is sufficient to feed the raw material with the steel plate side facing up. However, if the raw material is fed in this state to a conventional molding machine, the pressure on the lower roll of the crest molding roll will be reduced. The steel plate A was overstretched and bent strongly, while the valley part was adjusted by adjusting the pressure of the roll that applied pressure to the insulation material B side.
hand.

However, since the so-called heat insulating material cannot be cut and is not sufficiently shaped, the corners are rounded as shown in FIG. 6, and the folded plate is inconveniently warped so that the center part is lifted upward. In order to prevent this problem, as shown in Figure t1g7, it is convenient to adjust the pressure of the crest forming roll of the lower pressure roll that acts on the A side of the steel plate, making it easier to form the steel plate. Adjustment of the pressure rolls had to be done from the bottom of the machine base, which was difficult, and it was almost impossible to adjust the rolls below the center of the machine base.

(Means for Solving the Problems) This invention was proposed in view of the above-mentioned situation, and uses a folding plate forming machine to form a heat insulating material type steel plate into a folded plate type with the same quality as before with the steel plate side facing downward. This eliminates the need for reversing work when feeding, transporting, or handling folded plates.In order to save on the number of workers, large-diameter rolls and rolls for forming valleys can be mounted on the same axis. It consists of an upper roll with small diameter rolls for shaping the peaks installed at equal intervals and a lower pressure roll arranged correspondingly, and the insulation is inserted between the rolls above and below each roll. In a folded plate forming machine that forms a corrugated shape on a steel plate, the lower pressure roll corresponding to the crest forming roll is pivotally supported by each arm whose end is pivoted, and the other end of each arm is pivotally supported. is constructed such that it is supported by eccentric cams that are fixed to respective shafts parallel to the roll shaft and are rotatable individually.

(Example) Hereinafter, a three-folded plate forming machine which is an example of the present invention will be described with reference to the drawings.

1 is a large diameter roll and 2 is a small diameter roll, which are alternately attached to an upper shaft 3 and fixed at equal intervals by collars 4, and a lower shaft 5 is disposed below the shaft 3, A pressure roll 6 mounted on the shaft 5 corresponds to the roll l at a predetermined interval, and a heat insulating material type steel plate S
Shafts 3 and 5 are pivotally supported between frames 7.7 degrees, and gears 8.9 fixed to each mesh with each other, so that rolls 1 and 6 are moved at the same surface speed. It is designed to rotate.

10 is a pressure roll provided corresponding to the small diameter roll 2 of the upper shaft 3, and the pressure roll 10 is pivotally supported by individual arms, and each arm 11 has one end 11 of the pressure roll 10.
a is pivotally supported on a beam 12 installed between the frames 7 in parallel with the upper and lower shafts 3.5, and the other end tib is supported on an eccentric cam 13.

Also, the first eccentric cam 13 of the eccentric cam 13 is connected to the frame 7.
．． It is fixed to a shaft 17 that is rotatably mounted between a bearing 15 placed on a beam 14 installed in parallel with the beam 12 between 7' and a bearing 16 of the frame 7'. A handle 18 is provided at the end projecting from the frame 7°, and the eccentric cam 13 is configured to be rotatable to a desired angle by the handle 18.

Also, the second eccentric cam 13° is secured to the hollow shaft 17° which is slid onto the shaft 17, and a handle 18° is provided at the end located between the frame 7° and the handle 18. By rotating the handle 18', the angle of the eccentric cam 13° can be changed to a side other than the eccentric cam 13.

Similarly, the angle of the third eccentric cam 13'' can be changed using the shaft 17'' and handle 18''.
5' and 15'' are bearings that support shafts 17° and 17'', respectively.

(Function) Each of the upper and lower rolls 1.6 of the molding machine configured as above
The heat insulating material clad steel plate S inserted between 2 and 10 is held between rolls 1 and 6 and sent out to have the valleys shaped and the peaks shaped by rolls 2 and 10 to form a folded plate. Complete.

At this time, the troughs are formed under a certain pressure between the rolls 1 and 6 at a certain position, and the folded plate as a whole tends to warp downward, so by increasing or weakening the pressure of the rolls 10, It is possible to adjust the effect on the surface of the steel plate, which is likely to be shaped, and prevent the folded plate from curving. Pressure on the roll 10 can be adjusted using the handle 18.18°.

Eccentric cam 13.1 by rotating each of 18'' by the required angle.
This can be done by swinging the arm 11 and adjusting the distance between the roll 10 and the roll 2 by rotating the arms 3" and 13". In addition, there is no need to crawl under the machine base, and it can be easily done from the side of the machine base.

(Effects) The folded plate forming machine according to the present invention has an upper roll in which large diameter rolls for forming valley portions and small diameter rolls for forming peak portions are mounted alternately and at equal intervals on the same shaft, and a corresponding upper roll. In a folded plate forming machine that forms a corrugated shape on an insulation-clad steel plate that is inserted between the upper and lower rolls across each roll, it corresponds to the crest forming roll. One end of the lower pressure roll is pivotally supported by each arm that is pivotally connected, and the other end of each arm is supported by an eccentric cam that is fixed to each shaft parallel to the roll axis and can be rotated individually. Since the pressure of the lower pressure roll for forming the mountain part can be adjusted individually from the shaft end of the roll, that is, from the side of the machine, the heat insulating material-covered steel plate is placed with the steel plate surface facing downward. It is possible to produce a folded plate without warping in the same manner as before.

Therefore, the insulation material is laminated onto a continuous steel plate using a pasting machine, cut into predetermined pieces, and then turned over when being fed to the forming machine, making the insulation material easily damaged during transportation and handling after forming is completed. This eliminates the wasteful work of re-inverting the folded plate to prevent damage to the plate surface, which saves a lot of manpower, and since there is no inversion work, there is no damage to the periphery of the folded plate.

In addition, since there is no need to turn over the insulation-clad steel plate, it is possible to feed the steel plate and insulation material from the lamination machine to the forming machine in a continuous state, and for the above reason, the work efficiency is greatly improved. It can be improved and the cost can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the folded plate forming machine according to the present invention, Fig. 2 is a front view of the eccentric cam section, Fig. 3 is a sectional view thereof, and Fig. 4 is an x-X line in Fig. 1. 5 is a schematic explanatory diagram showing the structure of a conventional example, and FIGS. 6 and 7 are sectional views of a folded plate. DESCRIPTION OF SYMBOLS 1...Large diameter roll, 2...Small diameter roll, 3...Upper shaft, 5...Lower shaft, 6...Pressure roll, lO...Pressure roll, 11...Arm , 13・
...Eccentric cam, 17...Shaft, 18...Handle. Figure 4 Figure 5 Figure 6 Figure Δ @ Figure 7

Claims (1)

[Claims] Each roll consists of an upper roll with large diameter rolls for shaping the valleys and small diameter rolls for shaping the peaks, mounted alternately and at equal intervals on the same shaft, and a lower pressure roll arranged correspondingly to the upper roll. In a folded plate forming machine that forms a long insulation material plate inserted between upper and lower rolls into a corrugated shape, the lower pressure roll corresponding to the crest forming roll is used to form individual A folded plate molding machine characterized in that each arm is pivotally supported, and the other end of each arm is supported by an individually rotatable eccentric cam fixed to a respective shaft parallel to a roll shaft.