JPS58132323A - Corrugating apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to the full gating of web materials, and more particularly to an apparatus for continuously corrugating thin materials such as rolls of plastic foil, gold or metal foil. Corrugating according to the invention is carried out in the longitudinal direction of the web material and thus in the feed direction of the wear material.

By corrugating cardboard or paper for the production of corrugated cardboard, or by corrugating thin foils for various purposes, the corrugating process is normally carried out at an angle, usually 90°, to the longitudinal direction of the material, i.e. the feeding direction. A waveform is attached,
As for the continuous corrugating of the web material, it is then only corrugated in a predetermined manner. Corrugating at right angles to the feed direction of the wear material is quite satisfactory and relatively simple to carry out in many cases, such as in the production of corrugated cardboard. This is because the dimensional change in the material due to the corrugation wrinkles in that case only makes the corrugated material somewhat shorter than the original material. However, if it is desired to produce a sheet consisting of several layers of corrugated material, for example for use as an insulating material or as a material for the construction of heat exchangers, the web is corrugated only at right angles to the longitudinal direction. The use of materials is often inappropriate. This is because in such cases it is preferred that the corrugations of adjacent layers run at an angle of typically 90° to each other, and therefore successive layers must be arranged so that the corrugations intersect with each other. For this, the dimensions of the finished sheet are limited by the width of the web material,
This is particularly inconvenient in the context of window insulation, where joints are not desired, and non-planar wall insulation, where the sheets must be bent to conform to the wall surface.

Sheets of the type mentioned above can also be produced by manufacturing sheets of different layers one by one. According to this, a pre-cut foil or similar material is placed on a corrugated table and a roll with corresponding grooves is used to permanently corrugate the foil. The foils are then stacked on top of each other and glued or welded together. Such a method would not allow continuous production of sheet metal and would therefore be very time consuming and inefficient, and therefore economically unsatisfactory.

Finally, efforts are also being made to corrugate the web material so that the corrugations run at an angle other than 90' to the feed direction of the wear material, typically at a 45° angle. This kind of sheet is made of corrugated foil of 2 Fm or more, and the corrugated wrinkles of adjacent layers run at an angle to each other,
By manufacturing such sheets, each layer is corrugated so that the corrugation wrinkles run at the same angle to the feed direction of the web material, and then the corrugation wrinkles of adjacent layers run at angles to each other. It is possible to turn every other layer upside down, or to start corrugating adjacent layers at different angles so that the corrugations run at the same angle to each other from the beginning. be. One disadvantage of this procedure is that it requires the use of a corrugation device for each layer, one at an angle to the direction of web material feed, which is similar to conventional corrugating rolls. It is relatively complex and expensive in comparison, resulting in relatively high investment costs. Furthermore, it is very difficult to obtain satisfactory corrugations with such devices, due in part to the fact that the web material is prone to kinks and distortions. To produce corrugated wrinkles of satisfactory quality, the manufacture and adjustment of such equipment requires
The accuracy must be extremely high, which makes it even more expensive.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an effective and relatively inexpensive device for corrugating wear material continuously in the direction of feed of the wear material, with which the aforementioned drawbacks can be overcome. .

These objects can be achieved by the device according to the claims. The features of this invention are also clear from the claims.

The invention will now be described in detail with reference to the accompanying drawings.

As is apparent from FIG. 1, the invention is described and illustrated herein as being incorporated into a production line for manufacturing three-layer insulating sheets.

However, it is clear that the invention is in no way limited to use in this environment and can be used on its own or in combination with other mechanisms.

According to FIG. 1, the gating device 1 of the invention is installed in a plant for producing three layers of insulating sheet material, in which an upper feed roll 2 is used for each of the three layers of web material. , an intermediate supply roll 3 and a lower supply roll 4 are provided in the frame 5. Guide rolls 2.1, 2.2, 2.3.2.4 and 4.1.4.2.4, respectively mounted in the same way on the frame, from the upper supply roll 2 and the lower supply roll 4. 3, 4.4 and mounted on the second frame 6.
．． 2.6 and 4.5. ．． Along each of 4.6, several pairs of conventional corrugating rolls 2.7, 2.8 and 4.6 are mounted in the same way on the frame 6 and provided with forming means.
The web material is guided through each of 7.4.8. Said shaping means 1 extend in the longitudinal direction of the rolls and are adapted to each impart a corrugation to the wear material that is perpendicular to the feeding direction of the web material. Guide rolls 3.1.3゜2.3.3. attached to the frame body 5 while the intermediate supply roll 3.
3.4.3.5 and 3.6 the web material is guided into the full gating device 1 of the invention. The corrugating device will be described in detail below. The corrugating device basically consists of a pair of corrugating rolls 7 attached to a frame 6, and is provided with forming means. The forming means extend parallel to each other around the corrugating rolls and are adapted to corrugate the wear material in the direction of its supply.

This will be discussed in detail below. From the corrugating rolls 2.7.2.8 and 4.7,4°8 at least two webs are guided through the adhesive application means 1o and then the three webs are brought together and the guide Along the roll 11, it enters the adhesive section 12. Finally, the material is conveyed to conventional equipment (not shown) for drying, cutting, etc.

The fundamental problem that arises in corrugating wear material in its direction of feed is that corrugating equipment constructed according to the underlying theory for producing corrugated wrinkles as described above perpendicular to the direction of feed of the material. , in other words, if you use a corrugating machine with corrugating rolls around which fixed forming rings extend parallel, the material will be under great stress and will be torn apart by the corrugating machine. It gets lost. With such a device, it is very difficult to form uniform and high quality wavy wrinkles. This is because the circumferential speed at the tip of the forming means of the corrugating roll is greater than the circumferential speed at the bottom of the forming means, which causes stresses in the material.

According to the invention shown in FIGS. 1 and 2, this problem can be solved by
This can be overcome by a corrugating device 1 consisting of two corrugating rolls 7 supported by bearings on a frame 6, between which corrugations can be applied to the material 9. One of the corrugating rolls, in the illustrated example the lower corrugating roll 7, is preferably driven by an electric motor 13.

FIG. 4 shows a particular configuration of a corrugating roll 7, by reference to which the forming means of the corrugating roll are in the form of a ring 14, which is a corrugating roll. It is arranged in a recess or groove 15 so that it is free to slide around the gating roll but guided laterally. To further reduce the friction between the bottom of the groove 15 and the ring 140,
The groove and possibly also the ring can be provided with a Tefrene layer 16. At the outer end of the ring, ie facing the opposite corrugating roll, the ring is given a suitable shape in the corrugation, ie a tooth-like shape. Between the grooves 15 in which the rings 14 are received, grooves 17 are provided on the surface of the corrugating roll, and a rubber ring 18 is inserted into the grooves, and this is inserted into the grooves 17 on the opposite side. Corrugating roll ring 14
Collaborate with the leading edge of The purpose of the rubber ring 18 is to facilitate the feeding of the wear material 9. This is because the feeding of the web material also takes place by means of corrugating rolls 7. Apart from facilitating the feeding of the material, the inserted rubber ring 18 simultaneously protects the material from damage when it engages between the full gating rolls. Note also that in Figure 4, the configuration of the corrugating rolls is only shown in a very simplified diagram for ease of viewing; for example, the ring distance is actually quite small. .

From Figures 1, 2 and 3, it can be seen that the device has two cylindrical rubbers 19, each in contact with one of the corrugating rolls 7; It is also clear that it abuts the forming ring 14 of the tinting roll along its entire length. Although there is a Teflon layer between the ring 14 and the groove 15, we cannot guarantee that the friction between the ring and the groove is exactly the same as the friction between the other rings and grooves, but this may be due to manufacturing tolerances, etc. Therefore, the purpose of the cylindrical rubber 19 is to contact all the rings 14 with light pressure to ensure that they slide equally freely within the W415.

Directly adjacent to and in front of the corrugating roll 7 suitable heating means 8 are further provided, which in a preferred embodiment consist of infrared heating means arranged at a distance above the web material. . This infrared heating means is directed towards the corrugating roll 7 so as to heat the corrugating roll to a suitable temperature for corrugating. Once the material has been given its final shape by the shaping means of the corrugating rolls, it is cooled against the ambient air, so that the corrugated wrinkles are fixed in its final shape.

According to the corrugating roll 7 configured as described above, when heated material is supplied between the heated corrugating rolls, the difference in circumferential speed between the tip and the bottom of the forming means is , harmful to corrugated wrinkles,
Covered by the following facts: That is, the forming ring 14 can slide on the corrugating rolls and therefore the stresses in the material will not become too high, thus preventing tearing of the material and uneven material feeding. Additionally, the molded ring is self-adjustable. Experiments have shown that with such a device corrugated wrinkles of very high quality are provided and that the object stated in the introduction has been achieved by the device of the invention.

Although specific embodiments of the invention have been described, it will be obvious to those skilled in the art that changes and improvements can be made without departing from the scope of the invention as set forth in the claims. be.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of the apparatus of the present invention incorporated into a mechanism for producing a three-layer insulating thin plate, showing only a small part of the production line. FIG. 2 is a partially cutaway side view of the apparatus of the invention, seen in the direction of material supply. FIG. 3 is a schematic cross-sectional view taken along line 3-3 of FIG. And the fourth
The figure is an enlarged cross-sectional schematic view of the apparatus of FIG. 3 taken along line 4--4 of FIG. 3. (Explanation of main symbols shown in the drawings) 1... Corrugating device 2.3.4... Supply roll 5.6... Frame 7... Corrugating roll 9...・Material 10...Adhesive application means 11
... Guide roll 12 ... Adhesive part 13 ... Electric motor 14 ... Ring 15 ... Groove
16... Teflon layer 17... Groove 18.
...Rubber ring 19...Cylindrical rubber FIG, 2 FIG, 3 q FIG, 4 Procedural amendment (Dragon) January 72, 1981 Kazuo Wakasugi, Commissioner of the Patent Office 1, Indication of case Patent application Sho 57-187620 No. 2, Title of the invention Corrugating device 3, Relationship to the case of the person making the amendment Patent applicant address (residence) Nis-78151 Borlange, Sweden. Rhoda Bargain 48 Sea Name Isoflex Nibee Representative
Sune Bjorkulov Nationality: Sweden 4, Agent address: 1-1-1 Toranomon, Minato-ku, Tokyo 105
No. 8 New Toranomon Building 8th Floor 5, Date of Amendment Order: Showa, Month, Day (
6. Subject of amendment (1) Column for the representative of the patent applicant in the application (2) Drawings (3) Power of attorney and its translation 7. Contents of amendment 8. Official document for cataloging procedures for attached documents ( Method) 1. Indication of the case Japanese Patent Application No. 57-187620 2. Title of the invention Corrugating device 3. Name of the person making the amendment (Name) Isoflex Nevee 4. Agent address 1 Toranomon, Minato-ku, Tokyo 105 Chome 1-1
No. 8 No. 6, Subject of amendment (1) Specification 7, Contents of amendment (1) Engraving of specification (no change in content) 8, List of attached documents

Claims (6)

[Claims] (1) A device that continuously applies vertical corrugations to wear materials such as plastic, paper, and metal foil using a pair of cooperating corrugating rolls. Parallel forming means are provided, said forming means extending around the corrugating roll, and said forming means being laterally guided but extending over the full gating roll. A device characterized in that it consists of a freely rotating ring 14. (2) In the device according to claim 1, the ring 14 is slidably attached to the groove 15 of the full gating roll, and the ring 14 or the groove 15 is provided with a Teflon layer 16 that reduces friction. or a device characterized by being provided on both. (3) In the device according to claim 1 or 2, the wear material is a full gating roll 7.
1, characterized in that at least one of the full gating rolls is driven by an electric motor 13. (4) The apparatus according to claim 3, characterized in that a rubber ring 18 is inserted into the corrugating roll 7 between the forming rings 14 to facilitate the supply of material. (5) In the apparatus according to any one of claims 1 to 4, the fully gating 0-luer forming ring 14 has teeth at the tip cooperating with the corrugating roll on the opposite side. A device characterized by having the shape of (6) In the device according to any one of claims 1 to 5, there is a pair of cylindrical rubbers 19, and the cylindrical rubbers are corrugated along the entire length of the full gating 0-luer. The device is characterized in that the plurality of rings 14 are in contact with one side of the corrugating roll, respectively, so that the plurality of rings 14 can rotate freely around the corrugating roll 7 in the same way.