JPH06226361A - Production of aluminium corrugated-shape sheet - Google Patents

Abstract

PURPOSE:To provide a production of aluminium corrugated shape sheet where a high quality corrugated-shape sheet can be obtained by accurately cutting at a peak to peak part of the corrugated-shape or the root to root part, after continuously forming the corrugated-shape having a uniform pitch and height on an aluminium material of an aluminium foil, etc., of a specific thickness CONSTITUTION:An article is cut in a regular length by controlling a cutter part 11 with a cutter controlling part 10 after corrugating with streak rollers 7, 8 by finely regulating with a load of a weight so that a tension applying over all the width of an aluminium foil 2 of a 30-50mu thickness is made in 0.1-1.2kg/10cm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing an aluminum corrugated plate made of an aluminum foil material such as aluminum or aluminum alloy, which is mainly used as a separator used in a unit type air filter.

[0002]

2. Description of the Related Art Conventionally, an aluminum corrugated plate of this type is corrugated by passing a continuously fed aluminum foil material between a pair of streak rollers whose concavo-convex portions formed on the surface mesh with each other. The cutting blade is controlled by counting the number (peaks) of the surface protrusions of the corrugated streak roller, and the corrugated aluminum foil material is cut into peaks-peaks or valleys-valleys of the wave. It is manufactured by sequentially cutting it at required intervals.

[0003]

By the way, since the aluminum foil material is not used for separators, it can withstand corrugation among general general-purpose products, and in consideration of weight reduction and strength, etc. A thickness of 50μ is used. However, in the general-purpose aluminum foil material, the allowable range of variation in thickness is specified by JIS standard as ± 10%. Therefore, the variation in thickness of about ± 3μ to ± 5μ occurs in a general-purpose product with a thickness of 30 to 50μ. It is the current situation. Due to the difference in surface roughness and friction coefficient caused by such variation in thickness, a difference in tensile strength occurs between the streak rollers, resulting in a difference in the elongation of the aluminum foil material at the time of corrugation formation, resulting in a wave pitch. And the height becomes non-uniform, and even when the number of crests of the streak roller is counted and cut, the length of the obtained aluminum corrugated sheet varies, and the crests-crests or troughs-troughs of the wave are correctly Since it could not be cut, the quality of the corrugated sheet was significantly deteriorated. Further, due to variations in aluminum foil material, splitting occurred during corrugation.

The object of the present invention is to solve the above technical problems, and even if the thickness of the aluminum foil material varies,
It is possible to continuously produce a fixed-length aluminum corrugated sheet with waves of uniform pitch and height, and to obtain a high-quality aluminum corrugated sheet that can be cut correctly at the wave peak-peak portion or valley-valley portion. It is to provide a method of manufacturing an aluminum corrugated sheet that can be manufactured.

[0005]

The present invention has a thickness of 30 to 5
The aluminum foil material of 0μ is continuously fed out and passed between a pair of streak rollers each having a concavo-convex portion on the surface and meshing with each other for corrugation, and the number of convex or concave portions of one streak roller is counted. A method of manufacturing an aluminum corrugated sheet in which a cutting blade is controlled to sequentially cut at wave crests-crests or troughs-troughs, and the width of the corrugated roller is adjusted to 0 depending on the product length variation before passing through the streak roller. A method for manufacturing an aluminum corrugated plate, which comprises applying a tension of up to 1.2 kg / 10 cm.

The tension applied is 1.2 kg / 10.
If it exceeds 10 cm, the tension applied to the entire width of the aluminum foil material increases, and the elongation of the aluminum foil material during corrugation is small, which is not preferable.

[0007]

According to the present invention, even if the thickness of the aluminum foil material varies, the difference in tensile strength between the streak rollers can be eliminated, and the pitch and height of the waves can be made uniform. The cutting position is accurately determined, there is no variation in length, and it is possible to continuously obtain the aluminum corrugated plate that is accurately cut in the peak-peak portion or the valley-valley portion.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic configuration diagram of an aluminum corrugated board manufacturing apparatus (hereinafter simply referred to as this apparatus) A showing an embodiment of the present invention. Referring to the figure, the device A has a thickness of 4
An aluminum foil material 1 having a width of 0 μ and a width of 272 mm is set, and both ends of the fed aluminum foil material 1 are bent by 4 mm by the edge folding portions 2. 3 is a delivery roll, and 4 is a dancer roll. The dancer roll 4 can be selectively attached with a weight 5 of 0.5 to 3.0 kg, and a tension by the dancer roll 4 is applied to the aluminum foil material 1 passing between the muscle rolls 7 and 8 described later, By appropriately changing the weight of the weight 5 to be loaded, the tension applied to the entire width of the aluminum foil material can be finely adjusted. That is,
The dancer roll 4 measures the length of the corrugated plate 13 described later with time, calculates the tension in accordance with the variation, and applies a tension of 0 to 1.2 kg / 10 cm so that the weight 5 can be loaded. It can be changed to any suitable one.

Reference numeral 6 denotes a corrugated portion, which is composed of a pair of streak rolls 7 and 8 each having an uneven portion on the surface and meshing with each other. The aluminum foil material 1 is corrugated by passing between the streak rolls 7 and 8. A known proximity sensor 9 is arranged in the vicinity of the muscle roll 8, counts the number of peaks on the surface of the muscle roll 8, and outputs the count to the cutter control unit 10. The cutter control unit 10 detects the cutting position based on the output from the proximity sensor 9 and outputs a cutting signal to the cutter unit 11. The cutter unit 11 cuts the corrugated aluminum foil material 1 based on the output from the cutter control unit 10, and the payout unit 12 pays out a fixed-length aluminum corrugated plate 13.

When a corrugated sheet of 1 m having 60 peaks was manufactured by the above method, a corrugated sheet having a substantially uniform length and accurately cut at the peak-peak portion of the wave could be obtained. This can be suitably used as a separator for a unit type air filter.

By the way, in the above embodiment, the proximity sensor is used as the counting means, but by using other means, it is possible to count the number of concave portions of the muscle roll and cut at the trough-valley portion of the wave. it can.

[0012]

As described above, according to the present invention, 30 to 5
Even if the thickness of the aluminum foil material of 0μ varies, a corrugated pattern having a uniform pitch and height can be continuously formed, and the length does not vary, and the wave peaks-peaks or valleys- It is possible to obtain a high-quality aluminum corrugated board that is properly cut at the valley.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an aluminum corrugated plate manufacturing apparatus A showing an embodiment of the present invention.

[Explanation of symbols]

 1 Aluminum foil material 4 Dancer roll 5 Weight 6 Corrugated section 7,8 Muscle roll 9 Proximity sensor 10 Cutter control section 11 Cutter section 13 Aluminum corrugated board A A Aluminum corrugated board manufacturing equipment

Claims (1)

[Claims] 1. An aluminum foil material having a thickness of 30 to 50 .mu.m is continuously drawn out to pass between a pair of streak rollers having concave and convex portions and meshing with each other for corrugation and one streak roller. Controlling the cutting blade by counting the number of convex portions or concave portions of, a method of manufacturing an aluminum corrugated template that sequentially cuts in wave peaks-peaks or valleys-valleys, before passing the streak roller, 0 to 1.2 depending on product length variation
A method for manufacturing an aluminum corrugated plate, which comprises applying a tension of kg / 10 cm.