DE2013768A1 - Device for patterning the surface of a web of thermoplastic material - Google Patents

Description

? B A N Z M Ü L LEB 4050 Mönchengladbach, March 18, 1970

Eiokener Str. 240 Postfaoh 348 TP 7053 vC / Htt

Device for patterning the surface of a Web of thermoplastic material

Attempts have already been made several times, the thermoplastic To take advantage of the properties of fibers! Pattern in woven or to produce knitted webs by supplying heat. One of the methods used here was that when weaving or knitting fibers with different thermoplastic properties in the later desired pattern processed. The pattern is therefore after the production of the Web solid once and for all. When changing the pattern, the loom or the knitting machine must be realigned.

The invention is based on the object of creating a device with the help of these, patterns can be generated in thermoplastic Y / aren webs without having to look at the pattern desired later when weaving or knitting the Viarenbahn. A ümrfoh- ten of the loom or the knitting machine when changing over to a new one Patterns would then be completely eliminated and the production of the web would cease less expensive

The invention accordingly relates to a device for patterning, the surface of a web of thermoplastic material with dear Marks »that a device for plasticizing the material web, a device for patterning those still in the plastic state Material web and a device for fixing the cheerful through Cooling of the web of material are connected in series, and that the device for patterning the web of material from a plurality of related the web width are essentially adjacent and on the material web aufdrüokbaren stamps, at least on each repeat width of the desired pattern · independently of each other alt Büokiloht can be activated on the pattern to be generated »ind.

10984 ^ / 0963

r, sheet C

• C TP 7055

Appropriately, a number and size of stamps lying close to one another is provided that corresponds to the fineness of the grid of the pattern to be generated.

According to a further invention is used to actuate the adjusting elements the punch is a numerically controlled device to which a perforated tape input is connected, in particular for each punch of each repeat. The adjusting elements can expediently be confirmed either pneumatically or electrically or electromagnetically.

Based on the bohematic drawing of an embodiment further details according to the invention are explained * In the embodiment according to

1, a web 1, the pole 1 of which is at least partially thermoplastic, runs over a heating plate 3 and / or under an infra * Rotstrahier 4 through to the inventive pattern-generating device 5 to a cooling device 6. In the cooling device 6 For example, cool air can be blown onto the material web * Between the cooling device and the pattern-generating device according to the invention Device 5, a heat-insulating partition 7 can be set « The wall 7 may be necessary because the area of action of the device 5 must not be cooled before the pattern is embossed into the web of material *

The device according to the invention provided for generating patterns consists in the exemplary embodiment of the punch head 10, the lever arm 11, which can be rotated about the axis 12, and of the adjusting element 13 with a connection point H to the punch head 10. You number of in the device according to the invention in one or more lending adjacent punches 10 with the associated elements 11 to depends on which sample or itaster fineness can be achieved should be. One grid width corresponds to the width of the punch head 10. The adjustment elements 13 can be compressed air cylinders, membrane cylinders, electrical or magnetic devices and the like *

10 9 8 4 0/0963

«J sheet Y

** TP 7053

In one embodiment, the adjusting members 13 are τοη one, common control device actuates the adjusting elements at least excited independently of each other on a repeat width. The control input of the control device is usually a program, for example by means of perforated strips on the control device can be given.

With the device according to the invention, any pattern can be embossed in at least partially thermoplastic material webs. A program change of the pattern is also very easy, for example, by changing the punched tape at the input of the control device, changeable.

of the device according to the invention, which has been modified in many ways can only be made sure that the to The patterning area of the web or of the pole is still plastic when it comes out of the heating device in the area of the device should be patterned. The device 5 can therefore also be provided conveniently within the heating device.

It is not necessary that the web of material in one plane, for example on a tape by the device according to the invention to be led. The web can also run over a perforated drum, those from the inside in one area with hot air and in another Bereioh is blown with cooling air.

Such a perforated drum 20 with a stationary insulating. Partition wall 21 is shown schematically in FIG. The web 22 runs from left to right first over the area 23, in which hot air (direction of arrow) is blown from the inside to the outside, in such a way that the thermoplastic parts of the web are plasticized. In this area or at the end of this area, the pattern-generating device 24 according to the invention is then provided, which can be constructed quite similarly to that in FIG. Shortly after the material web has been patterned according to the invention, it arrives through the rotation of the Loohtrommel 20 in the cooling area 25, where cooling air from the inside

_n sheet r

H TP 7053

is blown outwards (arrow direction) through the material web.

The exemplary embodiment according to FIG. 2 is also not limited to

that hot or cold air is blown from the inside out. It is just as possible that in both areas from the inside and outside

the web is inflated, and also that in the hot area

with infrared radiation or an electric hot plate or similar liohem is heated.

4 claims 2 figures

1 0Γ, ο -;

Claims (4)

Sheet TP 7053 Claims / fy Device for patterning the surface of a web of at least partially thermoplastic material, characterized in that a device (3) for plasticizing the web (1), a device (5) for patterning the still plastic web and a device 16) are connected in series to fix the pattern by cooling the material web, and that the device (5) for patterning the material web consists of a plurality of punches (10) lying next to each other with respect to the material web width, which can be pressed onto the material web and which are at least on each repeat width can be operated independently of one another with regard to the pattern to be generated. 2. Apparatus according to claim 1, characterized in that one of the fineness of the grid of the pattern to be generated corresponding, number and size of closely spaced stamps (1O) is seen from the. 3. Device according to claim 1, characterized in that a numerically controlled device is used to actuate the adjusting elements (13) of the stamp (17), on / lie a control input is connected per stamp per report in total. 4. Fixture _? 6 according to claim 3, characterized in that the. Stamp (1O) can be actuated with pneumatically or electrically or electromagnetically excited adjusting elements (13). 109840/0 Blank page