US 2020/0255249 A1 · METHOD AND DEVICE FOR STACKING TWO-DIMENSIONAL MATERIAL SHEETS, AND PRINTINGAND/OR COATING MACHINE

Abstract

Two-dimensional material sheets are stacked in a stacking device. One of a printing machine and a coating machine has at least one stacking unit having a stacking space. Material sheets are conveyed, via the stacking space of the stacking unit, comprised by the stacking device, and are deposited into a stack on top of one another on a loading aid. For two different production runs, the stacks are formed on the loading aid with the four corners of their areas in mutually different relative orientations with respect to the loading aid, which is arranged, in each case, in the stacking space of the stacking unit and is larger-format compared with the material sheets to be deposited in each case. For the two production runs, in each case, one loading aid of the same format is positioned on different positions, as seen in projection in the horizontal, in the stacking space of the stacking unit.

Claims21

Dependent claims

1-55. (canceled)

A method for stacking flat material sheets (02) in a stacking device (01), in particular in a stacking device (01) that is part of a printing and/or coating machine (11), said stacking device comprising at least one pile delivery (03.1;

03.2) that has a stacking space, wherein material sheets (02) are conveyed above the stacking space of the pile delivery (03.1;
03.2), which is part of the stacking device (01), and are deposited one on top of the other on a loading aid (04) to form a pile (06, 06′;
06″), wherein for two different production runs, the piles (06, 06′;
06″) are formed on the loading aid with the four corners of their main surface area arranged in mutually different positions relative to the loading aid (04), which in each case is arranged within the stacking space of the pile delivery (03.1;
03.2) and is larger in format than the material sheets (02) to be deposited in each case, in that for each of the two production runs, a loading aid (04) of the same format is positioned at a different location within the stacking space of the pile delivery (03.1;
03.2), as viewed in the horizontal projection, characterized in that a positioning of the loading aid (04) for at least one of the two production runs is assisted by a data processing-based positioning aid, by means of which for the production run in question, a position specification relating to the target position of the loading aid (04) is determined for a drive device that positions alignment aid (21;
22;
23;
24;
25;
26;
27), and positioning is carried out in accordance with the position specification, in that, as the position specification relating to the target position of the loading aid (04), a target location of at least one alignment aid (21;
22;
23;
24;
25;
26;
27), configured as an optical indicator (21;
22;
23;
24;
25;
26;
27) or as a mechanical stop means, is determined and implemented, i.e., activation or positioning is carried out in accordance with the position specification, and in that, as the position specification relating to the target position of the loading aid (04), the target location of at least one alignment aid (21;
22) that is used for aligning and/or positioning the downstream or upstream loading aid edge (19;
18) and/or the target location of an alignment aid (23;
26) that is used for aligning and/or positioning a lateral loading aid edge (48;
49) is determined, and activation or positioning is carried out in accordance with said position specification.

25 more elements

A device, wherein the device is suitable for stacking flat material sheets (02) in the form of metal sheets (02) in a sheet metal printing machine that comprises at least one printing or coating unit (09), said device comprising at least one pile delivery (03.1;

03.2) with a stacking space, above which incoming material sheets (02) can be conveyed by a conveyor system (64) and can be deposited there, one on top of the other, to form a pile (06, 06′;
06″), and comprising a pile carrier (51) that is movable vertically within the stacking space, wherein a stop means (61;
52) for aligning the material sheets (02) flush along the upstream pile side (28) during pile formation is provided, along with a stop means for aligning the material sheets (02) flush along the downstream pile side (29) during pile formation, and wherein on the pile carrier (51) a loading aid (04) can be positioned, on which the pile (06;
06′;
06″) to be formed can be received, characterized in that a positioning aid having one or more alignment aids (21;
22;
23;
24;
25;
26;
27) that are used for positioning the loading aid (04) in the transport direction (T) is provided, which can be used to define a location of the loading aid (04) in a first position, in which the downstream edge of said loading aid is aligned vertically with the downstream stop means (52) or is offset at most slightly, i.e., by up to 20 mm as viewed along the transport direction (T), in particular upstream, and a location in a second position, in which the upstream edge of the loading aid (04) is aligned vertically with the upstream stop means (62) or is offset at most slightly, i.e., by up to 20 mm, as viewed along the transport direction (T), in particular downstream.

8 more elements

A sheet metal printing machine for processing and/or treating material sheets (02) in the form of metal sheets (02), which comprises a feeder (07), at least one printing or coating unit (09), and a stacking device (01), wherein the stacking device (01) comprises at least one pile delivery (03.1;

03.2) having a stacking space, above which incoming material sheets (02) can be conveyed by means of a conveyor system (64) and where said sheets can be deposited one on top of the other to form a pile (06;
06′;
06″), and having a pile carrier (51) that is movable vertically within the stacking space, wherein on the pile carrier (51), a loading aid (04) can be positioned, on which the pile (06;
06′;
06″) to be formed can be received, wherein a stop means (52) for aligning the material sheets (02) flush along the downstream pile side (29) during pile formation is provided, characterized in that a stop means (61) for aligning the material sheets (02) flush along the upstream pile side (28) during pile formation is provided, in that the upstream stop means (61) is mounted fixed relative to the frame along the transport direction (T) under operating conditions and the downstream stop means (52) can be adjusted along the transport direction (T) under operating conditions to adjust for the stacking of different material format lengths, and in that the support plane of the vertically movable pile carrier (51) that supports the loading aid (04) protrudes, at least on the upstream side as viewed in the transport direction (T), significantly, i.e., by at least 50 mm and/or by at least one-tenth of the length of the fixed distance or the maximum distance to be set under operating conditions between the upstream and the downstream stop means (61;
52) for deposition, beyond the vertical alignment of the stop surface of a stop means (61) that is used for aligning the material sheets (02) flush along the upstream pile side (28) during pile formation.

3 more elements

Dependencies are inferred from the claim text.

Method and device for stacking two-dimensional material sheets, and printingand/or coating machine

Life of this patent

Method and device for stacking two-dimensional material sheets, and printingand/or coating machine

Life of this patent

Abstract

Claims21