Einzeltreffer — DigiBib

The present invention relates to a stacker module (28) for a folder-gluer machine (1). The stacker module comprises a loading surface (90) configured to receive a plurality of folding boxes and to descend vertically as the number of folding boxes on the loading surface increases, and a linearly movable ejector (76) configured to be moved from a retracted position (RP) to an extended position (DP).The stacker further comprises an upper guide (110), configured to move between a clearing position (CP) which is vertically distant from the upper surface of the stack, and a guiding position (GP), in which the upper guide is located closer to the upper surface of the stack, and wherein the upper guide is in the guiding position when the ejector is moved from the retracted position to the evacuation position.

Titel:	STACKER MODULE FOR A CONVERTING MACHINE
Link:	View record in USPTO Patent Applications (Volltext)
Veröffentlichung:	2023
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Applications Sprachen: English Document Number: 20230356973 Publication Date: November 9, 2023 Appl. No: 18/040307 Application Filed: July 21, 2021 Assignees: BOBST MEX SA (Mex, CH) Claim: 1. A stacker module for a folder-gluer machine, the stacker module being located downstream of a transfer module in a direction of transportation of the folder-gluer machine and configured to receive folding boxes-from the transfer module, wherein the stacker module comprises: a loading surface configured to receive a plurality of folding boxes and to descend vertically as a number of folding boxes on the loading surface increases, a linearly movable ejector configured to be moved from a retracted position-to an extended position and eject a stack of folding boxes from the loading surface, and an upper guide configured to move between a clearing position which is vertically distant from an upper surface of the stack, and a guiding position in which the upper guide is located closer to the upper surface of the stack, and wherein the upper guide is in the guiding position when the ejector is moved from the retracted position to the extended position. Claim: 2. The stacker module according to claim 1, wherein the loading surface is configured to descend stepwise each time a batch of folding boxes is supplied. Claim: 3. The stacker module according to claim 1, wherein the loading surface is configured to descend continuously when the boxes are positioned on the loading surface in a continuous supply. Claim: 4. The stacker module according to claim 1, wherein the upper guide is synchronized to be in the guiding position during an evacuation descent of the stack on the loading surface and configured to follow a downward movement of the loading surface. Claim: 5. The stacker module according to claim 1, wherein the upper guide comprises a first elongated guide member and a second elongated guide member, wherein the first elongated guide member and the second elongated guide member extend in the direction of transportation. Claim: 6. The stacker module according to claim 5, wherein a lateral distance between the first elongated guide member and the second elongated guide member can be modified. Claim: 7. The stacker module according to claim 5, wherein the ejector comprises a first pusher and a second pusher arranged laterally of each other, and wherein each pusher is linearly displaceable in the direction of transportation and configured to move in unison between the retracted position and the extended position. Claim: 8. The stacker module according to claim 7, wherein the first pusher and the second pusher are arranged laterally of the first and second elongated guide members. Claim: 9. The stacker module according to claim 7, wherein the first pusher and the second pusher are laterally and longitudinally displaceable in relation to each other, such that their retracted position and extended position in the direction of transportation are different. Claim: 10. The stacker module according to claim 1, further comprising: a front abutment guide configured to move between an abutment position-in which the front abutment guide is positioned in front of a front leading edge of the folding boxes as they are deposited onto the loading surface, and a clearing position in which the front abutment guide is positioned distant from the stack such that the ejector can evacuate the stack from the loading surface. Claim: 11. The stacker module according to claim 10, wherein the front abutment guide comprises a first abutment plate and a second abutment plate arranged side-by-side. Claim: 12. The stacker module according to claim 10, wherein the front abutment guide remains stationary as the loading surface is descending. Claim: 13. The stacker module according to claim 10, wherein the front abutment guide is moved vertically upward when the loading surface is descending. Claim: 14. The stacker module according to claim 1, wherein the ejector is connected to an actuator and is configured to move at a first speed when the stack is present in the stacking module and at a second speed when the stack is present in a banding station-, and wherein the first speed is greater than the second speed. Claim: 15. A method of calibrating a stack of folding boxes in athe stacker module according to claim 1, the method comprising; receiving a flux of folding boxes onto athe loading surface in the stacker module, lowering the loading surface in the stacker module to an evacuation position, moving the upper guide from athe clearing position which is vertically distant from the upper surface of the stack, to athe guiding position, in which the upper guide is located closer to the upper surface of the stack, and moving the ejector from athe retracted position to the extended position such that the stack is evacuated/displaced from the loading surface. Current International Class: 65; 65

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STACKER MODULE FOR A CONVERTING MACHINE