Abstract:
A system for joining the end of a web of material (4) running off a first winding roll (17) with the beginning of a web on a new winding roll (1) interchanged with the first winding roll (17) on an unwinding machine comprising devices for cutting through the web (4) being wound off, for holding the end of the web so produced, and for pressing the end of the web against the periphery of an interchanged new winding roll (1), in order to produce an adhesive bond, has a splice element (6) which can be placed on the web being wound off (4), moved beyond the region of a full winding roll (1) and pressed against its periphery. The splice element (6) contains a web cutting element (15) and a holding element (16) which, when placed in contact with the web being wound off (4), is located behind the web-cutting element (15) in the direction of motion of the web.
Abstract:
A method of at least partially removing at least one of a coating and a masking layer from an area of at least one part, including the steps of orienting the at least one part; and removing the area of the at least one of coa tmg and masking layer from the at least one part using at least one removal device. In a preferred embodiment, the method includes a plurality of parts, orienting the plurality of parts and remo ving the area of the at least one coating and masking layer from each of the plurality of parts using a plurality of removal devices. A system for at least partially removing at least one of a coating and masking layer from an area of at least one part is also provided. In a preferred embodiment, the removal device(s) are lasers.
Abstract:
It is known that sheets transported at a distance apart on belts can be piled without difficulty using elements which engage in the region of the rear edges of the sheets. At very high operating speeds, the sheets can become dog-eared and unwanted marks may be produced, particularly on delicate papers. To prevent this, the sheets (8) are braked by clamping them between clamping elements (28, 33, 34) with synchronized clamping zones which are applied temporarily to the sheets (8) during one revolution. The clamping zones have the intake speed of the sheets when applied to the sheets (8). The speed of the clamping zone is then reduced to the desired delivery speed so slowly that the frictional engagement withe the sheets (8) is maintained. The sheets (8) are then unclamped. The clamping zones are moved out of their intake plane before the intake of the following sheets (8) and accelerated again to the intake speed before the following sheets (8) are clamped.