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A sheet processing machine comprises a receiving area (38) for collecting a sheet pile and a device (36) for determining the height of the sheet pile. The device (36) comprises a manually displaceable first sensor element arranged at a first side (48) of the receiving area (38), and an automatically displaceable second sensor element (50) arranged at an opposite side (52) of the receiving area (38) such that the first and second sensor elements (50) are arranged opposite each other along a width direction of the receiving area (38). The first sensor element and the second sensor element (50) are displaceable along a length direction of the sheet receiving area (38), wherein the first sensor element is one of a light emitting source and a light receiving sensor (56) and the second sensor element (50) is the other one of a light emitting source and a light receiving sensor (56). The light emitting source and the light receiving sensor (56) form a light barrier (58) along the width direction when facing each other.

Titel:	SHEET PROCESSING MACHINE
Link:	View record in USPTO Patent Applications (Volltext)
Veröffentlichung:	2024
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Applications Sprachen: English Document Number: 20240043236 Publication Date: February 8, 2024 Appl. No: 18/257199 Application Filed: December 16, 2021 Assignees: BOBST MEX SA (Mex, CH) Claim: 1. A sheet processing machine comprising: a receiving area for collecting a sheet pile; and a device for determining a height of the sheet pile, the device comprising a manually displaceable first sensor element arranged at a first side of the receiving area, and an automatically displaceable second sensor element arranged at an opposite side of the receiving area such that the first and second sensor elements are arranged opposite each other along a width direction of the receiving area, and the first sensor element and the second sensor element being displaceable along a length direction of the sheet receiving area, wherein the first sensor element is one of a light emitting source and a light receiving sensor and the second sensor element is the other one of the light emitting source and the light receiving sensor, the light emitting source and the light receiving sensor forming a light barrier along the width direction when facing each other. Claim: 2. The sheet processing machine according to claim 1, wherein the first sensor element and the second sensor element are mounted on a first rail and a second rail, respectively. Claim: 3. The sheet processing machine according to claim 2, wherein the first sensor element is mounted by a slotted guide slider in a slotted guide of the first rail. Claim: 4. The sheet processing machine according to claim 1, the second sensor element being displaceable by means of a motor of the second sensor element, especially an actuator of the second sensor element. Claim: 5. The sheet processing machine according to claim 1, the device comprising a control unit connected to the first sensor element and to the second sensor element, the control unit being adapted to receive a sensor signal from the light receiving sensor and to control a movement of the second sensor element. Claim: 6. The sheet processing machine according to claim 5, the control unit being adapted to move the second sensor element along the length direction to a working position, wherein in the working position the sensor signal is non-zero, preferably wherein in the working position the sensor signal is maximum. Claim: 7. The sheet processing machine according to claim 6, the control unit being adapted to move the second sensor element to the working position each time the first sensor element has been moved. Claim: 8. The sheet processing machine according to claim 1, wherein the first sensor element is arranged at an operator side of the sheet processing machine and the second sensor element is arranged at an opposite operator side of the sheet processing machine. Claim: 9. The sheet processing machine according to claim 1, wherein the receiving area is part of a blank separation station of the sheet processing machine and the sheet pile is a pile of blanks. Current International Class: 65; 65

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SHEET PROCESSING MACHINE