Device for cutting off and conveying streaks and method for cutting off and transferring a threading streak

A method for cutting and transferring a threading strip from a web downstream of a cylinder comprising:

• removing the web from the cylinder, the web comprising the threading strip and a remaining portion;
• clamping the threading strip between a pivoting carrying device having a driven guide roll and a counter support having a clamping device;
• cutting the threading strip to form a threading end, the cutting comprising engaging the threading strip with a knife which is moveable in a direction parallel to a center axis of the driven guide roll;
• and
• directing the threading end in a direction different than the remaining portion,
• wherein the threading strip is guided away from the remaining portion using an air flow,
• wherein the threading strip is cut in an area between the cylinder and each of the driven guide roll and the clamping device.

A method for cutting and transferring a threading strip from a web comprising:

• conveying the threading strip and a remaining portion of the web into a basement area wherein a device is disposed;
• guiding the threading strip into the device when the device is in a first functional position, the first functional position being defined by an open distance between a driven guide roll rotatable mounted to a carrying device and at least one clamping roll rotatably mounted to a counter support;
• maintaining a distance between the threading strip and the driven guide roll, and maintaining a distance between the threading strip and the at least one clamping roll, whereby the threading strip travels unhindered in the first functional position;
• first pivoting the carrying device towards the threading strip relative to a base of the device;
• separating the threading strip from the remaining portion of the web by a separating distance using a projection;
• second pivoting the carrying device toward the threading strip so that the driven guide roll contacts the threading strip, wherein the driven guide roll is rotating at a speed which substantially corresponds to a speed at which the web is moving;
• third pivoting the carrying device towards the threading strip so that the threading strip is deflected toward the at least one clamping roll;
• clamping the threading strip between the driven guide roll and the at least one clamping roll whereby the threading strip is tensioned;
• cutting the threading strip with a knife to form a threading strip free end, wherein the threading strip is cut without a substantial reduction in the tension;
• activating at least one air nozzle on a first guide device disposed on the carrying device to guide the threading strip free end to a second guide device disposed on the counter support;
• guiding the threading strip free end on the second guide device;
• further guiding the threading strip free end to a web guide roll using air flow which is generated by at least one air nozzle disposed on the second guide device.

A device for cutting and transferring a threading strip from a continuous material web, which functions with a machine for producing the continuous material web, wherein said continuous material web is one of a paper or cardboard web, comprising:

• a knife arranged downstream from a cylinder of the machine for producing the continuous material web;
• at least one driven guide roll which is positioned to be brought into engagement with the threading strip;
• at least one clamping roll which is positioned to be brought into engagement with the threading strip;
• and
• a mechanism for producing an air flow,
• wherein the threading strip is guided away from the continuous material web via the air flow after the threading strip is cut, and
• wherein the knife is arranged in an area between the cylinder and each of the at least one driven guide roll and the at least one clamping roll.

A device for cutting and transferring a threading strip downstream of a cylinder, comprising:

• a carrying device;
• a counter support;
• a base for supporting the carrying device and the counter support;
• the carrying device being pivotally mounted to at least one of the base and the counter support;
• a knife;
• a driven guide roll;
• a first guide device;
• the knife, the driven guide roll and the first guide device being coupled to the carrying device;
• at least one clamping roll;
• the knife being arranged in an area between the cylinder and each of the driven guide roll and the at least one clamping roll;
• a second guide device;
• the clamping roll and the second guide device being coupled to the counter support;
• and
• a mechanism for producing an air flow,
• wherein the threading strip is guided away from the continuous material web via the air flow after the threading strip is cut, and
• wherein the driven guide roll is mounted to move the threading strip towards the clamping roll.