US20010042954A1 - Device for controlling the means delivering sheets to a machine - Google Patents
Device for controlling the means delivering sheets to a machine Download PDFInfo
- Publication number
- US20010042954A1 US20010042954A1 US09/855,447 US85544701A US2001042954A1 US 20010042954 A1 US20010042954 A1 US 20010042954A1 US 85544701 A US85544701 A US 85544701A US 2001042954 A1 US2001042954 A1 US 2001042954A1
- Authority
- US
- United States
- Prior art keywords
- stack
- level
- computer
- sheets
- controlling
- 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.)
- Abandoned
Links
Images
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
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
- B65H1/18—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device controlled by height of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H1/00—Supports or magazines for piles from which articles are to be separated
- B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
- B65H1/14—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising positively-acting mechanical devices
-
- 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
- B65H2511/10—Size; Dimensions
- B65H2511/13—Thickness
-
- 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
- B65H2511/10—Size; Dimensions
- B65H2511/15—Height, e.g. of stack
-
- 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
- B65H2511/30—Numbers, e.g. of windings or rotations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/20—Calculating means; Controlling methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/30—Control systems architecture or components, e.g. electronic or pneumatic modules; Details thereof
- B65H2557/32—Control systems architecture or components, e.g. electronic or pneumatic modules; Details thereof for modulating frequency or amplitude
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S414/00—Material or article handling
- Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
- Y10S414/102—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns including support for group
- Y10S414/103—Vertically shiftable
- Y10S414/105—Shifted by article responsive means
Definitions
- the invention relates to a device for controlling the means delivering sheets from a stack to a machine for processing them.
- a device described in CH 651 807 comprising a mechanism for lifting the stack, a sheet-inserting means comprising a gripping element, means for detecting the top level of the stack comprising a detector of the front level of the stack connected to a computer acting on an electric motor of the stack-lifting mechanism and means for raising the stack in dependence on the said top level.
- a command pulse for raising the stack is sent to the driving motor, which sends a pulse driving the stack-lifting mechanism.
- the duration of the pulse is varied to obtain a variable rise step, so as to bring the top surface of the stack to the same level after the departure of each sheet from the stack.
- a device of this kind considerably improves the accuracy of the top level of the stack, more particularly of the front vertical surface, but all the same, the disadvantage of raising the stack of sheets by pulses is that the least offset between successive pulses may result in a variation in the step or pitch of the resulting layer of sheets. If the step tolerance exceeds a certain amount, the machine processing the layer of sheets stops and has to be restarted, resulting in substantial loss of production.
- the object of the invention is at least partly to obviate this disadvantage.
- the invention relates to a device for controlling the means delivering sheets from a stack to a machine for processing them as defined by claim 1 .
- FIG. 1 is a sectional view of a sheet supply station
- FIG. 2 is a block diagram of the control means of the mechanism for raising the stack for supplying sheets.
- FIG. 1 shows a supply station of the kind described in CH 651 807, to which reference should be made for further details. It comprises a stack lift comprising a lifting grid 1 suspended on chains 2 . One end of each chain 2 is attached to the lifting grid 1 via at least two, preferably four, lugs 3 placed on either side of the sheet-supplying stack 4 . The other end of each chain 2 is connected to an attachment member through which a screw extends. Each chain 2 passes around a chain wheel 7 mounted on shafts 8 .
- a device vertically drives the lifting grid 1 via the chains 2 .
- the device can comprise the attachment member which, of course, is guided by slides (not shown) in its motion along the screw.
- the screw is held by two bearings (not shown) and driven by a geared motor 11 equipped with a coder 41 .
- a geared motor 11 equipped with a coder 41 .
- use can be made of any geared motor device capable of rotating the shaft 8 secured to the chain wheels 7 .
- the insertion station also comprises a suction group 12 fixed to a chassis 13 suspended from the end of at least one or in the present case at least two chains 14 via lugs 15 .
- the other ends of the chains 14 are fixed to the output shaft of a linear motor 18 , where the chains 14 pass around chain wheels 22 mounted on a transverse shaft 23 .
- One end of the chassis 13 rests in slidable manner on a cross-member 24 whereas the other end is provided with a guide device mounted in holders 27 fixed to each lateral upright 28 of the frames 47 , 48 of the supply station. This arrangement ensures that the position of the suction group 12 does not change relative to the rear edge of the stack of sheets 4 when it is raised or lowered by the action of the motor 18 .
- the suction group 12 comprises a number of suckers 29 (to simplify the drawings, only one has been shown) and a first detecting means 30 which will be described in further detail hereinafter.
- the suction group 12 is described only in order to show how sheets are supplied to the machine; this known suction group 12 is not part of the invention and will not be described in detail here.
- the first detecting means 30 which comprises a cabriole foot 19 and a scanning cell 20 , is placed near the rear top part of the stack of sheets 4 along a theoretical axis corresponding to the theoretical central axis of the stack of sheets 4 .
- a second detecting means 32 is placed opposite the front top part of the stack of sheets 4 along the central axis of the stack.
- the second detecting means 32 preferably comprises a fixed linear camera disposed in the vertical direction of the stack of sheets 4 , so as to supply an analog signal depending on the measured level.
- a retractable front abutment 32 is mounted so as to be pivotable around an axis 34 near the top level of the front surface of the stack of sheets 4 .
- the front abutment 33 is pivoted by a lever 35 controlled by a cam 36 actuated by the device driving the insertion station supplied by sheets from the pile 4 .
- the abutment 33 has a window (not shown) centred along the central axis of the stack of sheets 4 , giving the detector 32 a constant view of the top level of the stack 4 .
- the first detecting means 30 is electrically connected to one of the circuits of a computer 37 by a cable 38
- the second detecting means 32 is connected to a second circuit of the said computer 37 by a cable 39 .
- the computer 37 receives a signal from the first detecting means 30 , it transmits positive or negative information for transmission by a cable 40 to the motor 18 controlling the vertical motion of the suction group 12 .
- information other than that supplied by the second detector 32 is supplied to the computer circuit 37 in order to control the speed of the geared motor 11 .
- the information relates to the speed of the machine, given by the values transmitted by a pulse generator 17 indicating the frequency at which the suction group 12 raises the sheets from the stack 4 .
- the thickness of the cardboard sheets constitutes the other information introduced into the computer 37 .
- These two items constitute the data for determining the theoretical speed at which the geared motor 11 should raise the stack of sheets 4 . This speed, calculated on the basis of the said data, is the set speed of the geared motor 11 .
- the analog signal supplied to the calculator by the second detector 32 enables it in real time to evaluate the difference between the top level of the stack measured by the second detector 32 and the reference top level of the said stack.
- the comparison between these two levels is used to form a speed signal at the computer output, which is compared with the speed in real time of the geared motor 11 supplied by a coder 41 associated with the motor.
- the result of the comparison between these two speed signals is used to increase or decrease the supply frequency of the motor, via a frequency varying means 42 connected to the motor 11 .
- the motor 11 thus continuously raises the stack of sheets 4 at a speed constantly adapted to the real level of the stack compared with the reference level.
- the insertion station may also comprise an auxiliary supply device 50 , commonly called non-stop (NS), for changing a stack without interrupting the flow of sheets.
- the auxiliary supply device 50 comprises a frame 51 for positioning bars 52 for holding the stack when the grid 1 lifting the main stack has reached a level requiring reloading with a new stack of sheets. Accordingly the bars 52 are inserted under the main stack so as to form an auxiliary grid which holds the main stack and enables the grid 1 to be lowered to a bottom position for loading the new stack.
- the non-stop device generally comprises a drive having a mechanism similar to that for raising the grid 1 .
- a drive having a mechanism similar to that for raising the grid 1 .
- it comprises a geared motor 53 for driving chain wheels 54 around which chains 55 pass and vertically move the frame 51 .
- the geared motor 53 is also connected to the computer 37 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Pile Receivers (AREA)
- Controlling Sheets Or Webs (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
The device comprises a lifting mechanism (1), a sheet-inserting means, means for detecting the front top level of the stack (32) connected to a computer acting on an electric motor (11) of the stack-lifting mechanism (1), and means for raising the stack (4). The detector (32) of the front level of the stack (4) comprises means for measuring the extent of variations in the level of the stack. The computer is also connected to a source of information (17) relating to the supply frequency in real time and to the nominal thickness of the sheets. The computer output is connected to a frequency-varying means for controlling the electric motor (11), the computer being designed so that the value of the signal appearing at its output is characteristic of the difference between the measured level of the stack (4) and the calculated level.
Description
- The invention relates to a device for controlling the means delivering sheets from a stack to a machine for processing them.
- The operation of successively taking the top sheet from a stack of sheets to form a layer of sheets for insertion into a printing or cutting machine is well-known and numerous existing devices serve this purpose. In the case of a sheet-by-sheet supply of solid fibre board or corrugated board, flatness is a frequent problem, since the top surface of the stack may vary considerably in level. This is because the thickness of a cardboard sheet may vary in dependence on a number of external factors such as the ambient humidity or the storage conditions, the result being a difference in height between the front and rear of the stack and also between the centre and edges thereof.
- It has already been proposed to obviate this disadvantage by means of a device described in CH 651 807, comprising a mechanism for lifting the stack, a sheet-inserting means comprising a gripping element, means for detecting the top level of the stack comprising a detector of the front level of the stack connected to a computer acting on an electric motor of the stack-lifting mechanism and means for raising the stack in dependence on the said top level. When the front level detector cannot see the stack of sheets, a command pulse for raising the stack is sent to the driving motor, which sends a pulse driving the stack-lifting mechanism. Depending on the thickness of the stack of sheets, the duration of the pulse is varied to obtain a variable rise step, so as to bring the top surface of the stack to the same level after the departure of each sheet from the stack.
- A device of this kind considerably improves the accuracy of the top level of the stack, more particularly of the front vertical surface, but all the same, the disadvantage of raising the stack of sheets by pulses is that the least offset between successive pulses may result in a variation in the step or pitch of the resulting layer of sheets. If the step tolerance exceeds a certain amount, the machine processing the layer of sheets stops and has to be restarted, resulting in substantial loss of production.
- The object of the invention is at least partly to obviate this disadvantage.
- To this end, the invention relates to a device for controlling the means delivering sheets from a stack to a machine for processing them as defined by claim1.
- The accompanying drawings, diagrammatically and by way of example, illustrate an embodiment of the control device according to the invention.
- FIG. 1 is a sectional view of a sheet supply station and
- FIG. 2 is a block diagram of the control means of the mechanism for raising the stack for supplying sheets.
- FIG. 1 shows a supply station of the kind described in CH 651 807, to which reference should be made for further details. It comprises a stack lift comprising a lifting grid1 suspended on
chains 2. One end of eachchain 2 is attached to the lifting grid 1 via at least two, preferably four,lugs 3 placed on either side of the sheet-supplyingstack 4. The other end of eachchain 2 is connected to an attachment member through which a screw extends. Eachchain 2 passes around a chain wheel 7 mounted onshafts 8. A device vertically drives the lifting grid 1 via thechains 2. The device can comprise the attachment member which, of course, is guided by slides (not shown) in its motion along the screw. The screw is held by two bearings (not shown) and driven by a gearedmotor 11 equipped with acoder 41. Of course, use can be made of any geared motor device capable of rotating theshaft 8 secured to the chain wheels 7. - The insertion station also comprises a
suction group 12 fixed to achassis 13 suspended from the end of at least one or in the present case at least twochains 14 vialugs 15. The other ends of thechains 14 are fixed to the output shaft of alinear motor 18, where thechains 14 pass aroundchain wheels 22 mounted on a transverse shaft 23. One end of thechassis 13 rests in slidable manner on a cross-member 24 whereas the other end is provided with a guide device mounted inholders 27 fixed to each lateral upright 28 of the frames 47, 48 of the supply station. This arrangement ensures that the position of thesuction group 12 does not change relative to the rear edge of the stack ofsheets 4 when it is raised or lowered by the action of themotor 18. Thesuction group 12 comprises a number of suckers 29 (to simplify the drawings, only one has been shown) and a first detecting means 30 which will be described in further detail hereinafter. Thesuction group 12 is described only in order to show how sheets are supplied to the machine; this knownsuction group 12 is not part of the invention and will not be described in detail here. - The first detecting means30, which comprises a
cabriole foot 19 and ascanning cell 20, is placed near the rear top part of the stack ofsheets 4 along a theoretical axis corresponding to the theoretical central axis of the stack ofsheets 4. A second detecting means 32 is placed opposite the front top part of the stack ofsheets 4 along the central axis of the stack. The second detecting means 32 preferably comprises a fixed linear camera disposed in the vertical direction of the stack ofsheets 4, so as to supply an analog signal depending on the measured level. - A retractable
front abutment 32 is mounted so as to be pivotable around anaxis 34 near the top level of the front surface of the stack ofsheets 4. The front abutment 33 is pivoted by alever 35 controlled by acam 36 actuated by the device driving the insertion station supplied by sheets from thepile 4. The abutment 33 has a window (not shown) centred along the central axis of the stack ofsheets 4, giving the detector 32 a constant view of the top level of thestack 4. - The first detecting means30 is electrically connected to one of the circuits of a
computer 37 by acable 38, whereas the second detecting means 32 is connected to a second circuit of the saidcomputer 37 by acable 39. When thecomputer 37 receives a signal from the first detecting means 30, it transmits positive or negative information for transmission by acable 40 to themotor 18 controlling the vertical motion of thesuction group 12. - As illustrated by the block diagram in FIG. 2, information other than that supplied by the
second detector 32 is supplied to thecomputer circuit 37 in order to control the speed of the gearedmotor 11. The information relates to the speed of the machine, given by the values transmitted by apulse generator 17 indicating the frequency at which thesuction group 12 raises the sheets from thestack 4. The thickness of the cardboard sheets constitutes the other information introduced into thecomputer 37. These two items constitute the data for determining the theoretical speed at which the gearedmotor 11 should raise the stack ofsheets 4. This speed, calculated on the basis of the said data, is the set speed of the gearedmotor 11. The analog signal supplied to the calculator by thesecond detector 32 enables it in real time to evaluate the difference between the top level of the stack measured by thesecond detector 32 and the reference top level of the said stack. The comparison between these two levels is used to form a speed signal at the computer output, which is compared with the speed in real time of the gearedmotor 11 supplied by acoder 41 associated with the motor. The result of the comparison between these two speed signals is used to increase or decrease the supply frequency of the motor, via afrequency varying means 42 connected to themotor 11. Themotor 11 thus continuously raises the stack ofsheets 4 at a speed constantly adapted to the real level of the stack compared with the reference level. - The insertion station may also comprise an
auxiliary supply device 50, commonly called non-stop (NS), for changing a stack without interrupting the flow of sheets. Theauxiliary supply device 50 comprises a frame 51 forpositioning bars 52 for holding the stack when the grid 1 lifting the main stack has reached a level requiring reloading with a new stack of sheets. Accordingly thebars 52 are inserted under the main stack so as to form an auxiliary grid which holds the main stack and enables the grid 1 to be lowered to a bottom position for loading the new stack. - The non-stop device generally comprises a drive having a mechanism similar to that for raising the grid1. Inter alia it comprises a geared
motor 53 fordriving chain wheels 54 around whichchains 55 pass and vertically move the frame 51. The gearedmotor 53 is also connected to thecomputer 37. When the sheets are supplied by thesuction group 12 from theauxiliary supply device 50, the lift regulating means used for the grid 1 are used for theauxiliary supply device 50.
Claims (3)
1. A device for controlling the means delivering sheets from a stack (4) to a machine for processing them, comprising at least one mechanism (1) for lifting the stack, a sheet-inserting means comprising gripping means (29), means for detecting the upper level of the stack comprising a detector of the front level (32) of the stack (4) connected to an input of a computer (37) acting on at least one electric motor (11) of the stack-lifting mechanism (1), and means for raising the stack (4) in dependence on the upper level, characterised in that the detector of the front level (32) of the stack (4) comprises means for measuring the extent of variations in the level of the stack and in that an input of the computer (37) is also connected to a source of information (17) relating to the supply frequency in real time and to the nominal thickness of the sheets, and the output of the computer (37) is connected to at least one frequency varying means (42) for controlling the electric motor or motors (11), the computer (37) being designed so that the value of the signal appearing at its output characterises the difference between the measured level of the stack (4) and the level calculated on the basis of the said nominal thickness and the said supply frequency and generates a variation in the frequency of the one or more varying means (42) tending to modify the rate of advance of the motor (11) in order to make the measured level coincide with a set level.
2. A device according to , characterised in that the detector (32) of the front level of the stack (4) is a linear camera disposed in the vertical direction of the stack.
claim 1
3. A device according to , characterised in that the lifting mechanism (1) is associated with an auxiliary supply means (50) controlled by a motor (53) connected to the computer (37) such that its rate of advance is determined by the same information as used for controlling the one or more electric motors (11) of the lifting mechanism (1).
claim 1
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/668,477 US6874780B2 (en) | 2000-05-16 | 2003-09-22 | Device for controlling the means delivering sheets to a machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00963/00A CH693850A5 (en) | 2000-05-16 | 2000-05-16 | A servo-control bodies delivering sheets to a machine. |
CH20000963/00 | 2000-05-16 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/668,477 Continuation US6874780B2 (en) | 2000-05-16 | 2003-09-22 | Device for controlling the means delivering sheets to a machine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20010042954A1 true US20010042954A1 (en) | 2001-11-22 |
Family
ID=4550559
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/855,447 Abandoned US20010042954A1 (en) | 2000-05-16 | 2001-05-15 | Device for controlling the means delivering sheets to a machine |
US10/668,477 Expired - Lifetime US6874780B2 (en) | 2000-05-16 | 2003-09-22 | Device for controlling the means delivering sheets to a machine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/668,477 Expired - Lifetime US6874780B2 (en) | 2000-05-16 | 2003-09-22 | Device for controlling the means delivering sheets to a machine |
Country Status (13)
Country | Link |
---|---|
US (2) | US20010042954A1 (en) |
EP (1) | EP1170228B1 (en) |
JP (1) | JP3488212B2 (en) |
KR (1) | KR100426418B1 (en) |
CN (1) | CN1141233C (en) |
AT (1) | ATE314297T1 (en) |
AU (1) | AU777199B2 (en) |
BR (1) | BR0101972B1 (en) |
CA (1) | CA2347477C (en) |
CH (1) | CH693850A5 (en) |
DE (1) | DE60116191T2 (en) |
ES (1) | ES2255524T3 (en) |
TW (1) | TW533179B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1342682A2 (en) * | 2002-03-06 | 2003-09-10 | MAN Roland Druckmaschinen AG | Pile lifting drive |
US20050230899A1 (en) * | 2004-04-08 | 2005-10-20 | Kpl Packaging S.P.A. | Method and unit for selecting and separating reams from a stack of sheets of paper or similar materials |
US20050230897A1 (en) * | 2004-04-08 | 2005-10-20 | Kpl Packaging S.P.A. | Unit for selecting and separating reams from a stack of sheets of paper or similar materials |
US20090115122A1 (en) * | 2007-11-05 | 2009-05-07 | Roth Curtis A | Automatic warp compensation |
US20100102505A1 (en) * | 2008-10-27 | 2010-04-29 | Hiroyuki Ikeuchi | Remaining sheet volume detecting apparatus and image forming apparatus |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6806946B2 (en) * | 2002-12-17 | 2004-10-19 | Kabushiki Kaisha Toshiba | Feed paper apparatus |
US20070063423A1 (en) * | 2005-09-16 | 2007-03-22 | Kirby Alfred D | Media bed |
JP4253852B2 (en) * | 2007-03-15 | 2009-04-15 | 村田機械株式会社 | Image reading apparatus and image scanner apparatus |
US8231124B2 (en) * | 2009-06-23 | 2012-07-31 | Kyocera Mita Corporation | Paper feeding device and image forming apparatus |
EP2456698B1 (en) | 2009-07-24 | 2015-03-11 | Bobst Mex Sa | Device and method for positioning elements on a plate in a processing machine |
CN102190178A (en) * | 2010-03-15 | 2011-09-21 | 株式会社东芝 | Recording medium removing apparatus, erasing apparatus, automatic document feeding apparatus, and recording medium removing method |
FR2957905B1 (en) * | 2010-03-29 | 2012-04-06 | Otor Sa | METHOD AND DEVICE FOR TRANSFERRING CUTTERS FOR PACKAGING BOXES |
FR2986510B1 (en) * | 2012-02-03 | 2016-03-25 | Otor Sa | DEVICE AND METHOD FOR FORMING PACKAGING BOXES WITH VERTICAL DEPILING |
CN104999697B (en) * | 2015-07-09 | 2018-08-07 | 安徽铸星机械制造有限公司 | Multifunctional adjustable paper cutter |
CN105110046B (en) * | 2015-08-28 | 2017-04-12 | 浙江新立机械有限公司 | Automatic paper feeding device of paper cup machine |
CN105538777A (en) * | 2015-12-15 | 2016-05-04 | 苏州贝多环保技术有限公司 | Automatic feed/discharge device of die cutting machine, automatic conveying system and automatic control method |
CN105538410B (en) * | 2016-02-29 | 2017-09-22 | 深圳市威利特自动化设备有限公司 | Align punch system |
CN112793297A (en) * | 2020-12-31 | 2021-05-14 | 绍兴市大禹印刷有限公司 | Perfecting press |
EP4039624B1 (en) | 2021-02-09 | 2023-07-05 | HP Scitex Ltd. | Leveling for a media positioning arrangement of a top feeder of a printer |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3716226A (en) * | 1970-11-23 | 1973-02-13 | Oppenweiler Gmbh Maschinenbau | Sheet feeder |
DD115336A1 (en) * | 1974-03-28 | 1975-09-20 | ||
US4052051A (en) * | 1975-07-10 | 1977-10-04 | Pitney-Bowes, Inc. | Sheet feeder |
JPS5978047A (en) * | 1982-10-25 | 1984-05-04 | Canon Inc | Paper feeder |
CH651807A5 (en) * | 1983-03-31 | 1985-10-15 | Bobst Sa | DEVICE FOR CONTROLLING ORGANS DELIVERING SHEETS TAKEN FROM A CELL TO A MACHINE WORKING THEREWITH. |
US4702466A (en) * | 1983-04-20 | 1987-10-27 | Dubois R Clark | Sheet material feeder for copiers and other sheet processing apparatus |
DD235858A1 (en) * | 1985-04-02 | 1986-05-21 | Polygraph Leipzig | CONTROL DEVICE ON PAPER INPOSTS AND PURCHASES OF POLYGRAPHIC MACHINES |
DE3631456C3 (en) * | 1986-09-16 | 1995-07-13 | Heidelberger Druckmasch Ag | Device for controlling a stack lifting device |
JPS63117827A (en) * | 1986-11-07 | 1988-05-21 | Fujitsu Ltd | Paper sheet feeding device |
US4801135A (en) * | 1987-06-19 | 1989-01-31 | Xerox Corporation | Sheet handling apparatus |
JPH01231735A (en) * | 1988-03-09 | 1989-09-18 | Sharp Corp | Residual quantity of paper detector for lift type paper feed cassette |
JPH0233036A (en) * | 1988-07-21 | 1990-02-02 | Komori Printing Mach Co Ltd | Automatic speed adjusting method and device for leveler lift |
JP2684640B2 (en) * | 1988-11-02 | 1997-12-03 | 大日本印刷株式会社 | Paper height position control device for sheet feeding unit |
DE4100838C2 (en) * | 1991-01-14 | 1995-08-31 | Kba Planeta Ag | Stack control device |
IT1251227B (en) * | 1991-08-20 | 1995-05-05 | Franco Pezzini | SHEET FEEDER FOR THE TRANSFER OF SHEETS FROM A STACK TO A RECEIVER OR WORK PLAN |
DE4135752C1 (en) * | 1991-10-30 | 1992-11-12 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | |
JP3254608B2 (en) * | 1992-06-22 | 2002-02-12 | 株式会社小森コーポレーション | Paper position adjustment device for paper feeder |
JP3301635B2 (en) * | 1992-07-09 | 2002-07-15 | 芝浦メカトロニクス株式会社 | Collage supply device |
DE4448000B4 (en) * | 1994-01-27 | 2012-09-06 | Heidelberger Druckmaschinen Ag | Device for conveying sheets in the feeder area of a sheet-processing machine |
DE4410384C1 (en) * | 1994-03-25 | 1995-05-24 | Roland Man Druckmasch | Control for stack lift device |
DE19509468C2 (en) * | 1995-03-16 | 1998-08-27 | Roland Man Druckmasch | Sheet feeder unit |
DE19543634A1 (en) * | 1995-11-23 | 1997-05-28 | Giesecke & Devrient Gmbh | Device and method for separating sheet material from a stack |
DE19642479A1 (en) * | 1996-10-15 | 1998-04-16 | Heidelberger Druckmasch Ag | Continuous feed paper sheet handler |
DE59801444D1 (en) * | 1997-02-05 | 2001-10-18 | Roland Man Druckmasch | STACK CHANGE DEVICE |
DE19807529B4 (en) * | 1998-02-21 | 2007-01-11 | Koenig & Bauer Ag | Device for controlling a continuous stack lifting device |
-
2000
- 2000-05-16 CH CH00963/00A patent/CH693850A5/en not_active IP Right Cessation
-
2001
- 2001-04-19 TW TW090109359A patent/TW533179B/en not_active IP Right Cessation
- 2001-04-30 ES ES01110578T patent/ES2255524T3/en not_active Expired - Lifetime
- 2001-04-30 DE DE60116191T patent/DE60116191T2/en not_active Expired - Lifetime
- 2001-04-30 AT AT01110578T patent/ATE314297T1/en not_active IP Right Cessation
- 2001-04-30 EP EP01110578A patent/EP1170228B1/en not_active Expired - Lifetime
- 2001-05-10 AU AU43820/01A patent/AU777199B2/en not_active Ceased
- 2001-05-15 CA CA002347477A patent/CA2347477C/en not_active Expired - Lifetime
- 2001-05-15 US US09/855,447 patent/US20010042954A1/en not_active Abandoned
- 2001-05-15 KR KR10-2001-0026396A patent/KR100426418B1/en active IP Right Grant
- 2001-05-16 BR BRPI0101972-4A patent/BR0101972B1/en not_active IP Right Cessation
- 2001-05-16 CN CNB011196270A patent/CN1141233C/en not_active Expired - Lifetime
- 2001-05-16 JP JP2001146769A patent/JP3488212B2/en not_active Expired - Fee Related
-
2003
- 2003-09-22 US US10/668,477 patent/US6874780B2/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1342682A2 (en) * | 2002-03-06 | 2003-09-10 | MAN Roland Druckmaschinen AG | Pile lifting drive |
EP1342682A3 (en) * | 2002-03-06 | 2004-11-10 | MAN Roland Druckmaschinen AG | Pile lifting drive |
US20050230899A1 (en) * | 2004-04-08 | 2005-10-20 | Kpl Packaging S.P.A. | Method and unit for selecting and separating reams from a stack of sheets of paper or similar materials |
US20050230897A1 (en) * | 2004-04-08 | 2005-10-20 | Kpl Packaging S.P.A. | Unit for selecting and separating reams from a stack of sheets of paper or similar materials |
US20090115122A1 (en) * | 2007-11-05 | 2009-05-07 | Roth Curtis A | Automatic warp compensation |
US8113503B2 (en) * | 2007-11-05 | 2012-02-14 | J&L Group International, Llc | Automatic warp compensation |
US20100102505A1 (en) * | 2008-10-27 | 2010-04-29 | Hiroyuki Ikeuchi | Remaining sheet volume detecting apparatus and image forming apparatus |
US8302959B2 (en) * | 2008-10-27 | 2012-11-06 | Fuji Xerox Co., Ltd. | Remaining sheet volume detecting apparatus and image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
CA2347477A1 (en) | 2001-11-16 |
EP1170228A2 (en) | 2002-01-09 |
AU777199B2 (en) | 2004-10-07 |
BR0101972A (en) | 2001-12-26 |
ATE314297T1 (en) | 2006-01-15 |
JP2002012328A (en) | 2002-01-15 |
KR100426418B1 (en) | 2004-04-08 |
DE60116191T2 (en) | 2006-08-24 |
CN1323729A (en) | 2001-11-28 |
DE60116191D1 (en) | 2006-02-02 |
TW533179B (en) | 2003-05-21 |
JP3488212B2 (en) | 2004-01-19 |
ES2255524T3 (en) | 2006-07-01 |
EP1170228B1 (en) | 2005-12-28 |
US6874780B2 (en) | 2005-04-05 |
CN1141233C (en) | 2004-03-10 |
BR0101972B1 (en) | 2010-11-03 |
CH693850A5 (en) | 2004-03-15 |
AU4382001A (en) | 2001-11-22 |
US20040061275A1 (en) | 2004-04-01 |
EP1170228A3 (en) | 2003-01-08 |
KR20010105195A (en) | 2001-11-28 |
CA2347477C (en) | 2005-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2347477C (en) | A device for controlling the means delivering sheets to a machine | |
JP2825775B2 (en) | Pile lifter | |
US4189133A (en) | Document stacking table lowering method, apparatus and controlling circuitry therefor | |
US5295678A (en) | Control drive for a stack lift drive in sheet processing machines, more particularly sheet printing machines | |
US3716226A (en) | Sheet feeder | |
US6908082B2 (en) | Method and system for providing sheet stack level control | |
US6837490B2 (en) | Paper feeding apparatus | |
US5696802A (en) | Sheet counter head control | |
CN109774233B (en) | Paperboard cutting mechanism for corrugated case | |
JP2972690B2 (en) | Paper remaining amount detecting apparatus and method | |
CN109940922B (en) | Paperboard cutting production line for corrugated case | |
CN220182213U (en) | Vertical feeding structure for printing material of printing machine | |
CN109747216B (en) | Cardboard cutting device for corrugated box | |
CN211109721U (en) | Liftable blanking table for winding film | |
CN220787598U (en) | Automatic material machine of receiving of cardboard | |
JP4279310B2 (en) | Paper processing device | |
JPH10316251A (en) | Paper feeding device | |
JP2876334B2 (en) | Sheet feeding method and apparatus for sheet-fed printing press | |
KR100492340B1 (en) | A card supply apparatus for card-printer | |
JPH07247029A (en) | Paper feeding device | |
JP2503306B2 (en) | Paper feed table control method | |
JPH0767985B2 (en) | Paper separation delivery method | |
JPH0761674A (en) | Paper sheet storing device | |
JPS61882A (en) | Paper sheet feed device | |
JPS62175381A (en) | Ejected sheet tray device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BOBST S.A., SWITZERLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REBEAUD, JEAN-CLAUDE;REEL/FRAME:011818/0450 Effective date: 20010508 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |