Rotary embossing machine
OwnerArmin Steuerinventor
Life of this patent
Estimating the term…
Abstract
A rotary embossing machine includes an embossing mechanism in which an embossing gap is formed between an embossing cylinder and a counter pressure cylinder. For conveying an embossing film web through the embossing gap, the rotary embossing machine includes a conveying mechanism for producing a movement of the web at the same speed as a material layer to be embossed, during an embossing interval. The film conveying mechanism includes a pulling device downstream of the embossing gap which is provided with a slip drive for the embossing film web and a controllable film supply device upstream of the embossing gap which cooperates with the pulling device. This arrangement avoids the risk of the embossing films or foils tearing and improves the embossing quality.
Claims17
Rotary embossing machine comprising:
- an embossing mechanism including an embossing cylinder and an impression cylinder, the impression cylinder positioned adjacent to the embossing cylinder such that an embossing gap is formed between the embossing cylinder and the impression cylinder;
- a conveying mechanism for conveying an embossing foil web through the embossing gap in a conveying direction, the conveying mechanism having foil conveying means for producing, during an embossing interval, a movement of the embossing foil web with a speed identical to the speed of a material layer to be embossed, the foil conveying means comprising a pull device positioned downstream of the embossing gap, the pull device having a slip drive for the embossing foil web, and the foil conveying means further comprising a controllable foil supply device positioned upstream of the embossing gap and cooperating with the pull device.
Dependencies are inferred from the claim text.