EP3694799A1 - Sheet orientation device, machine for processing a sheet, and method for orienting a sheet - Google Patents
Sheet orientation device, machine for processing a sheet, and method for orienting a sheetInfo
- Publication number
- EP3694799A1 EP3694799A1 EP18786677.7A EP18786677A EP3694799A1 EP 3694799 A1 EP3694799 A1 EP 3694799A1 EP 18786677 A EP18786677 A EP 18786677A EP 3694799 A1 EP3694799 A1 EP 3694799A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- alignment
- orientation
- roller
- machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000123 paper Substances 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 12
- 239000011111 cardboard Substances 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000010408 film Substances 0.000 abstract 3
- 239000011087 paperboard Substances 0.000 abstract 3
- 230000007704 transition Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/002—Registering, e.g. orientating, articles; Devices therefor changing orientation of sheet by only controlling movement of the forwarding means, i.e. without the use of stop or register wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
- B65H7/08—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to incorrect front register
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/15—Roller assembly, particular roller arrangement
- B65H2404/152—Arrangement of roller on a movable frame
- B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
- B65H2404/15212—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis rotating, pivoting or oscillating around an axis perpendicular to the roller axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/21—Angle
- B65H2511/216—Orientation, e.g. with respect to direction of movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/50—Timing
- B65H2513/52—Age; Duration; Life time or chronology of event
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/13—Parts concerned of the handled material
- B65H2701/131—Edges
- B65H2701/1311—Edges leading edge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/21—Industrial-size printers, e.g. rotary printing press
Definitions
- Sheet aligner machine for processing a sheet and method for aligning a sheet
- the invention relates to a sheet aligning device for a machine for processing sheets of a thin, flat material such as paper, cardboard or foil, and a machine for processing such a sheet and a method for aligning such a sheet.
- the machine may be a laminating machine that applies a coating material, such as a plastic film, to a substrate and firmly bonds the two together.
- the machine may, for example, also be a machine for the production of corrugated cardboard. But there are also other application examples conceivable.
- a sheet to be processed is taken from a sheet feeder a stack of sheets and fed to a feed line. Each sheet is then transported along the feed line to the place where it is laminated together, for example, with another sheet.
- the transport along the feed line can be done by rollers, conveyor belts, etc.
- a sheet alignment device for a machine for processing sheets of a thin, flat material such as paper, cardboard or foil provided with a supply path, at least one sensor for detecting position and / or orientation of the sheet and at least two alignment modules, each having an alignment, each associated with a drive device, each alignment module is associated with a pivoting device with which the alignment roller can be pivoted about a vertical axis to the feed path pivot axis.
- the invention is based on the idea of controlling not only the speed of the registration rollers but also the direction in which the speed of the registration rollers acts. Thereby, the previously separate steps of the translational displacement of the sheets and the rotation about a vertical axis are combined into a single step. This results in a simpler structure of the device.
- the senor comprises two position sensors upstream of the alignment modules, with which the leading edge of a sheet moved along the feed path can be detected. From the time offset, with which the leading edge of the sheet is detected by the two position sensors, can be calculated very precisely by which angle the alignment of the sheet must be corrected.
- the sensor comprises an alignment sensor with which a side edge and / or an orientation of the sheet can be detected.
- the lateral offset of the sheet which is transported on the supply path can be detected with the orientation sensor.
- the side edge is preferably detected in the region of the front edge of the sheet, ie one of the front corners of the sheet.
- the alignment roller preferably cooperates with a counter-roller, so that the friction is reduced.
- a pressure module is provided, with which the counter-roller is acted upon against the alignment roller. The pressure module ensures that the frictional forces necessary to align the sheet between the registration roller and the sheet act.
- the pressure module can be a pneumatic cylinder, an eccentric, a
- the spacing of the alignment modules from each other is preferably adjustable, so that the sheet alignment device can be adapted to sheets of different dimensions.
- the machine for processing the sheets preferably comprises a handling line for a substrate, wherein the sheet aligning device feeds the sheet to the handling line.
- the sheet alignment device is preferably used to synchronize the sheet to be aligned with the substrate, so ensure by appropriate acceleration or deceleration that the leading edge of a sheet coincides with the leading edge of the associated substrate.
- sheets can be processed which have a thickness of 0, 1 to 1, 2 mm.
- the sheets may have a grammage of 90 to 500 g / m 2 and a size with a width of 400 to 1 .650 mm and a length of 400 to 2050 mm.
- a method for aligning a sheet of thin, flat material such as paper, cardboard or foil in a first step, the orientation of the sheet is detected and in a second step, the arc by means of at least two Circumferential speed and orientation of controllable alignment rollers on a feed path accelerated, rotated and / or is shifted laterally.
- FIG. 1 is a machine according to the invention in a perspective view
- FIG. 2 is a schematic plan view of an alignment module used in a sheet registration device incorporated in the machine of Figure 1;
- FIG. 3 shows a schematic section through the alignment module of FIG. 2 interacting with a counter-roller;
- FIG. 4 shows a schematic plan view of the supply path provided with two alignment modules
- Figure 5 shows schematically a first example of a correction of the alignment of a sheet obtained with the sheet alignment device according to the invention
- FIG. 6 shows a second example of a correction
- FIG. 7 shows a third example of a correction.
- FIG. 1 shows a machine 1 for processing sheets of a thin, flat material, such as paper, cardboard or foil.
- the sheets are provided in the form of a stack 2, from where they are fed by means of a sheet feeder 3 a feed line 4.
- a bow B can be seen here.
- a sheet alignment device 5 is integrated, by means of which the orientation of the supplied via the feed path 4 sheets B can be corrected.
- the sheets B are then brought together with a substrate S, for example, to be glued or laminated with this.
- the substrate sheets S are removed from a stack 6.
- the sheet alignment device has two alignment modules 10 (see in particular FIGS. 2 to 4), which each have an alignment roller 12 as an essential component.
- Each of the registration rollers 12 is intended to cooperate with the surface of an arch to be aligned.
- the alignment roller at least on its peripheral surface on a material which is characterized by a coefficient of friction.
- the alignment roller 12 may for example consist of rubber.
- Each alignment module 10 has a drive device 14 with which the rotational speed of the corresponding alignment roller 12 can be controlled.
- the drive device 14 may in particular include an electric motor.
- Each alignment module 10 also has a pivoting device 16, with which the alignment roller 12 can be pivoted about a pivot axis A (see also the arrow P in Figure 2).
- the pivot axis A is perpendicular to the plane along which the sheets B are transported by the sheet alignment device 5.
- Each alignment roller 12 cooperates with a counter-roller 20, so that the sheets B can be moved between the alignment roller 12 and the counter-roller 20.
- Each counter roller 20 is associated with a pressure module 22, with which the pressure force can be controlled, with which the counter-roller 20 is acted upon against the alignment roller 12. Furthermore, by means of the pressure module, the counter roller 20 can be moved away from the alignment roller 12 for a short time, so that a sheet can be "threaded" into the gap between the alignment roller 12 and counter roller 20, without the leading edge of the sheet being decelerated.
- the orientation of the axis of rotation of the counter-rollers 20 is not adjustable; the pivot axis always remains perpendicular to the direction along which the sheets are transported.
- the counter-rollers 20 have at least on their peripheral surface on a material which has a low coefficient of friction. Accordingly, the movement of an arc in the area of interaction between one Alignment roller 12 and the counter roller 20 of the peripheral speed and orientation of the corresponding alignment roller 12th
- the sheet aligner 5 also has sensors for detecting the position and orientation of the sheets B.
- FIG. 4 shows two position sensors 30, which are arranged upstream of the two alignment modules 10. The two position sensors 30 are "at the same height" so that they simultaneously detect the leading edge of a sheet B, if it is correctly aligned.
- the two position sensors 30 are arranged at such a distance on both sides of a median plane of the sheet alignment device 5 that they can detect the leading edge of a sheet, even at maximum lateral offset.
- the detection accuracy it is desirable for the detection accuracy to choose the distance of the position sensors as large as possible.
- the distance between the position sensors can be adjusted from each other.
- the sheet aligning device 5 also has an alignment sensor 32 arranged laterally. This serves to detect a side edge of a transported sheet B, in particular in the region of the transition to the front edge. If the orientation of the leading edge is known together with the position of the side edge, for example, at the transition to the leading edge, not only can it be calculated if and how much an arc B is twisted relative to the correct orientation, but also how far it is laterally offset.
- a control not shown here, based on the signals of the sensors 30, 32, calculates how the orientation and / or position of each individual sheet must be corrected so that it can be brought together with the substrate S in the desired manner.
- a sheet B is shown schematically, which is transported in the transport direction T along the sheet alignment device 5 and aligned there correctly.
- the sheet B is in the initial state twisted clockwise relative to its correct orientation.
- the two registration modules 10 are therefore controlled so that the sheet B, when the registration rollers 12 cooperate with it, transport it slightly faster on the left side than on the right side, so that the sheet B finally, when it is downstream of the alignment modules 10 , has its correct orientation (see the arc B again shown in solid lines downstream of the alignment rollers 12).
- the higher speed of the left alignment roller 12 is shown in Figure 5 by a longer velocity arrow.
- the registration rollers 12 will rotate at a speed such that the peripheral speed of the registration rollers corresponds to the transport speed of the sheet.
- the left alignment roller 12 is briefly brought to a higher peripheral speed, so that the necessary correction of the orientation of the sheet B takes place.
- the sheet B leaves the aligning rollers 12, they rotate again at a speed corresponding to the transport speed of the sheet B.
- the alignment modules 10 and the sheet with the substrate S can be synchronized, to which it is to be supplied.
- the sheet B can be accelerated or decelerated as a whole, so that the leading edge of the sheet B coincides exactly with the leading edge of the substrate S.
- a sheet B is shown, which is laterally offset upstream of the Ausrichtmodule. Therefore, since the sheet B does not need to be rotated, the registration modules will both operate at the same speed (this is represented by the two velocity arrows, which are the same length). However, the alignment rollers 12 are adjusted by means of the pivoting device so that the sheet B is transported obliquely in total until it assumes its correct position downstream of the alignment modules 12.
- the alignment rollers 12 when the leading edge of the sheet B enters the gap between the aligning rollers and the counter-rollers, are aligned in the transport direction of the sheet B, and only then be swiveled suitable for a short time. Before the trailing edge of the sheet exits the alignment modules 10, the alignment rollers 12 are pivoted again by means of the pivoting device 14 such that the axis of rotation of the alignment rollers 14 is perpendicular to the longitudinal direction of the sheet alignment device and to the transport direction T.
- FIG. 7 shows an example in which the bow B is both twisted and laterally offset. Accordingly, the alignment rollers 12 are both pivoted to compensate for the lateral offset, as well as suitably driven at different speeds to compensate for the twist.
Landscapes
- Registering Or Overturning Sheets (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017123521 | 2017-10-10 | ||
PCT/EP2018/025263 WO2019072416A1 (en) | 2017-10-10 | 2018-10-09 | Sheet orientation device, machine for processing a sheet, and method for orienting a sheet |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3694799A1 true EP3694799A1 (en) | 2020-08-19 |
EP3694799B1 EP3694799B1 (en) | 2023-04-26 |
Family
ID=63862090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18786677.7A Active EP3694799B1 (en) | 2017-10-10 | 2018-10-09 | Sheet orientation device, machine for processing a sheet, and method for orienting a sheet |
Country Status (8)
Country | Link |
---|---|
US (1) | US11447353B2 (en) |
EP (1) | EP3694799B1 (en) |
CN (1) | CN111344239B (en) |
ES (1) | ES2945717T3 (en) |
MX (1) | MX2020003743A (en) |
PL (1) | PL3694799T3 (en) |
TW (1) | TW201932398A (en) |
WO (1) | WO2019072416A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3763646B1 (en) | 2019-07-11 | 2021-08-11 | Müller Apparatebau GmbH | Device and method for transferring sheets between conveyor units |
CN112850246A (en) * | 2020-12-30 | 2021-05-28 | 淮阴工学院 | Automatic correcting device for conveying diaphragm |
CN114275597A (en) * | 2021-11-30 | 2022-04-05 | 山西光兴光电科技有限公司 | Aligning device and spacer paper recycling equipment |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS57195055A (en) * | 1981-05-22 | 1982-11-30 | Hitachi Ltd | Method of sidewise shift of paper sheet |
JPS58109344A (en) * | 1981-12-21 | 1983-06-29 | Fuji Xerox Co Ltd | Paper true-up device for copier |
JPS61188347A (en) * | 1985-02-15 | 1986-08-22 | Minami Kikai Kk | Transfer device for grouping successive veneers having predetermined or uniform length |
JPS61229748A (en) | 1985-04-02 | 1986-10-14 | Nec Corp | Conveying mechanism for single slip form |
DE3804576A1 (en) | 1987-03-28 | 1988-10-06 | Heidelberger Druckmasch Ag | DEVICE FOR PROMOTING AND ALIGNING BOWS IN BOW-PROCESSING MACHINES |
JPH072544B2 (en) * | 1987-10-31 | 1995-01-18 | キヤノン株式会社 | Sheet resister |
US5697609A (en) * | 1996-06-26 | 1997-12-16 | Xerox Corporation | Lateral sheet pre-registration device |
US5794176A (en) * | 1996-09-24 | 1998-08-11 | Xerox Corporation | Adaptive electronic registration system |
US6059284A (en) | 1997-01-21 | 2000-05-09 | Xerox Corporation | Process, lateral and skew sheet positioning apparatus and method |
US6269995B1 (en) * | 1998-04-29 | 2001-08-07 | Gerber Scientific Products, Inc. | Friction drive apparatus for strip material |
US6488275B2 (en) * | 2000-12-18 | 2002-12-03 | Xerox Corporation | Active pre-registration system using long sheet transports |
EP1321404B1 (en) | 2001-12-21 | 2009-03-25 | C.P. Bourg S.A. | Method and device for controlling the orientation and alignment of individual sheets of paper passing on a conveyor |
US6634521B1 (en) * | 2002-08-28 | 2003-10-21 | Xerox Corporation | Sheet registration and deskewing system with independent drives and steering |
JP4019988B2 (en) * | 2003-03-25 | 2007-12-12 | ノーリツ鋼機株式会社 | Image forming apparatus |
US20050109450A1 (en) * | 2003-11-25 | 2005-05-26 | Fargo Electronics, Inc. | Laminate feeding in a card manufacturing device |
DE102004060191A1 (en) | 2004-12-14 | 2006-06-29 | Wincor Nixdorf International Gmbh | Device for aligning notes of value |
JP2007269421A (en) * | 2006-03-30 | 2007-10-18 | Canon Inc | Sheet conveying device and image forming device provided with this |
JP4845658B2 (en) * | 2006-04-07 | 2011-12-28 | キヤノン株式会社 | Sheet conveying apparatus and image forming apparatus provided with the same |
JP2010285244A (en) * | 2009-06-10 | 2010-12-24 | Toshiba Corp | Attitude changing device and paper sheet processing device |
US8074982B2 (en) * | 2009-06-30 | 2011-12-13 | Xerox Corporation | Adjustable idler rollers for lateral registration |
JP5350133B2 (en) * | 2009-08-20 | 2013-11-27 | キヤノン株式会社 | Image forming apparatus |
EP2305463B1 (en) | 2009-10-02 | 2012-06-27 | Asitrade AG | Method for manufacturing a multi-layer composite, arrangement for positioning a sheet-like element onto a backing in a laminating unit and laminating unit |
JP5652692B2 (en) | 2009-12-14 | 2015-01-14 | 富士電機株式会社 | Film substrate transfer device |
US8256767B2 (en) * | 2009-12-18 | 2012-09-04 | Xerox Corporation | Sheet registration using edge sensors |
JP5623173B2 (en) * | 2010-07-30 | 2014-11-12 | キヤノン株式会社 | Sheet conveying apparatus, image forming apparatus, and image reading apparatus |
JP5445510B2 (en) * | 2011-05-11 | 2014-03-19 | コニカミノルタ株式会社 | Conveying apparatus and image forming apparatus |
JP5983686B2 (en) * | 2014-07-23 | 2016-09-06 | コニカミノルタ株式会社 | Paper conveying apparatus and image forming apparatus |
JP6477136B2 (en) | 2015-03-27 | 2019-03-06 | 富士ゼロックス株式会社 | Paper conveying apparatus and image forming apparatus |
JP6546475B2 (en) * | 2015-08-12 | 2019-07-17 | キヤノン株式会社 | Image forming device |
CN110624995B (en) * | 2019-10-30 | 2020-11-27 | 东莞市伟峰印刷有限公司 | Stamping die convenient to blank |
-
2018
- 2018-10-09 CN CN201880066359.5A patent/CN111344239B/en active Active
- 2018-10-09 EP EP18786677.7A patent/EP3694799B1/en active Active
- 2018-10-09 MX MX2020003743A patent/MX2020003743A/en unknown
- 2018-10-09 ES ES18786677T patent/ES2945717T3/en active Active
- 2018-10-09 WO PCT/EP2018/025263 patent/WO2019072416A1/en unknown
- 2018-10-09 US US16/651,244 patent/US11447353B2/en active Active
- 2018-10-09 TW TW107135595A patent/TW201932398A/en unknown
- 2018-10-09 PL PL18786677.7T patent/PL3694799T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20200270084A1 (en) | 2020-08-27 |
PL3694799T3 (en) | 2023-06-26 |
EP3694799B1 (en) | 2023-04-26 |
TW201932398A (en) | 2019-08-16 |
WO2019072416A1 (en) | 2019-04-18 |
ES2945717T3 (en) | 2023-07-06 |
US11447353B2 (en) | 2022-09-20 |
CN111344239B (en) | 2021-11-02 |
CN111344239A (en) | 2020-06-26 |
MX2020003743A (en) | 2020-08-03 |
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