WO2007018504A1 - Printing drum having electromechanical sheet attachment - Google Patents
Printing drum having electromechanical sheet attachment Download PDFInfo
- Publication number
- WO2007018504A1 WO2007018504A1 PCT/US2005/026628 US2005026628W WO2007018504A1 WO 2007018504 A1 WO2007018504 A1 WO 2007018504A1 US 2005026628 W US2005026628 W US 2005026628W WO 2007018504 A1 WO2007018504 A1 WO 2007018504A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- actuator
- drum
- gripper
- printing
- Prior art date
Links
- 238000007639 printing Methods 0.000 title claims abstract description 55
- 230000000694 effects Effects 0.000 claims description 8
- 230000003213 activating Effects 0.000 claims description 6
- 239000000976 inks Substances 0.000 description 9
- 239000004020 conductors Substances 0.000 description 5
- 239000003086 colorants Substances 0.000 description 3
- 230000001939 inductive effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reactions Methods 0.000 description 2
- 280000684088 Color Printing companies 0.000 description 1
- 241000758706 Piperaceae Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007648 laser printing Methods 0.000 description 1
- 239000000463 materials Substances 0.000 description 1
- 238000000034 methods Methods 0.000 description 1
- 230000003068 static Effects 0.000 description 1
- 230000001429 stepping Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
- B41J13/22—Clamps or grippers
- B41J13/223—Clamps or grippers on rotatable drums
Abstract
Description
PRINTING DRUM HAVING ELECTROMECHANICAL SHEET ATTACHMENT
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates to printing and, more particularly, but not
exclusively to color laser printing.
Color printing requires each sheet to pass through a sequence of printing
stages, typically each stage imprints a single color ink.
Ink drying and curing adds further stages to the printing sequence.
A typical rotational printing machine uses a drum system. A drum rotates
about its axis, and the drum system typically consists of two or three drums.
Typically an image is first created on a first drum called the image drum or PIP.
The image, initially formed from the laser beam, draws ink and is then transferred
to a blanket on a second drum called the printing drum. The image is then
transferred from the blanket onto a page wrapped around the third drum called the
impression drum. Some types of printing systems may have a two-drum system
where the image is created directly on the printing drum. The impression drum
contains a mechanism to catch the sheet to be printed, attach it to the drum, and
eject it when the printing is done.
Color printers usually use several drum systems, wherein each drum system
prints a different color. The result is a large and expensive machine, being larger as
much as more colors can be used. This mechanism requires accurate registration of
the paper on the various drums one after the other to produce a quality image. Subsequently, printing mechanisms were developed that employ a single
printing drum system. Such a mechanism typically requires the drum system to
rotate several times, printing a different color in each rotation. This requires several
rotations before the page is ejected, depending on the number of colors printed.
Color printers with multiple drum systems are inherently faster than color
printers using a single drum system since they print several sheets concurrently,
wherein each sheet is printed by a different drum in a sequence. To achieve the
same speed a single drum color printer has to rotate the drum much faster,
according to the number of colors printed. Hence, the process of receiving and
ejecting a sheet has to be performed much faster and more accurately. Precise
registration of the sheet is doubly difficult due to the increased speed of the drum.
Typically, the drum contains a recess in which a sheet gripper is mounted.
The gripper is opened as the sheet is guided towards the recess and then closed,
thereby attaching the edge of the sheet to the drum. The gripper is typically kept in
the closed position by a spring and is turned open by a cam mounted co-axially with
the drum's axis. The cam normally rotates with the drum. To open the grippers a
stop station, typically an actuator mounted on a fixed frame, extends an arrestor
hook towards the cam which catches the cam and stops the cam rotation. The
gripper is connected to a lever that is in turn connected at its far end to a cam
follower that rides on the cam on the other end. The perimeter of the camhas
extensions in the radial direction of the drum and the cam follower rides over the
extensions of the cam as it is stopped and forces the gripper to open. The cam follower then travels down the curve of the cam and enables a spring to close the
gripper. The rotary actuator releases the cam before the cam follower reaches the
next extension on the cam and the cam returns to rotate with the drum. The gripper's
opening and closing trajectories are determined by the profile of the cam. A further
description of the prior art is provided below with reference to Figs. 4 and Fig. 5.
Several stop stations may be used to allow the gripper to be opened at
different places along the drum rotation. To enable feeding sheets of different
thickness the cam may be provided with various profiles or may be replaced with a
cam of a different profile, say by operating an external setting.
The cam mechanism is limited by its ability to open the gripper only at
predefined locations on the rotation of the drum. Furthermore, at high speed, the
abrupt stoppage of the cam and the induced trajectory of the gripper create a
vibration that may interfere with the required precision high speed sheet
registration, and the vibration may be passed on to the printing heads, thus
adversely affecting printing.
SUMMARY OF THE INVENTION
According to one aspect of the present invention there is provided a sheet
attachment apparatus for attaching a sheet for printing on a revolving drum, the
sheet attachment apparatus containing a sheet gripper mechanism controllably
mounted on the revolving drum and operated by an actuator mounted to rotate with
the revolving drum. According to another aspect of the present invention there is provided a sheet
attachment apparatus wherein the actuator is engaged in non-contact manner with
the 5 gripper mechanism.
According to yet another aspect of the present invention there is provided a
sheet attachment apparatus wherein the actuator is an electromagnetic actuator.
According to still another aspect of the present invention there is provided a
sheet attachment apparatus wherein the^ electromagnetic actuator contains a
solenoid.
Further according to another aspect of the present invention there is provided
a sheet attachment apparatus wherein the actuator is an electromechanical actuator.
Still further according to another aspect of the present invention there is
provided a sheet attachment apparatus wherein the actuator is constantly engaged
with the gripper mechanism.
Even further according to another aspect of the present invention there is
provided a sheet attachment apparatus wherein the actuator is controlled by a
microcontroller, the microcontroller being operative to instruct the actuator to
execute at least one of closing and opening of the sheet attachment apparatus in a
substantially continuously selectable position along a revolution of the printing
drum.
Even further according to yet another aspect of the present invention there is
provided a sheet attachment apparatus wherein the actuator has an automatically
variable travel length, thereby to permit a selectable spacing for gripping. Even further according to still another aspect of the present invention there is
provided a sheet attachment apparatus wherein the actuator is controlled by a
microcontroller configured to select the spacing.
Additionally according to another aspect of the present invention there is
provided a sheet attachment apparatus wherein the actuator has automatically
variable force affecting at least one of a selectable variable gripping force and a
selectable variable ejection force.
According to further another aspect of the present invention there is provided
a sheet attachment apparatus wherein the actuator is controlled by a microcontroller
configured to select the force.
According to yet another aspect of the present invention there is provided a
sheet attachment apparatus wherein the actuator contains a plurality of coils and
wherein activating different selections of the coils produces at least one of different
travel lengths and different forces.
According to still another aspect of the present invention there is provided a
sheet attachment apparatus wherein the activating the different selections produces
the different travel lengths, and wherein the different travel lengths provide
selectable gripping spacing.
Further according to another aspect of the present invention there is provided
a sheet attachment apparatus wherein the mechanism additionally containing: a
gripper pivotally mounted about an axis to attach a sheet to the drum; and a lever co-pivotally mounted with the gripper and operative to effect the gripper to pivot;
and the actuator containing a shaft mounted to pivot the lever.
Still further according to another aspect of the present invention there is
provided a sheet attachment apparatus wherein the gripper mechanism contains: a
gripper arm pivotally mounted on the drum, a lever, co-pivotally mounted with the
gripper arm; and a spring connected on one end to the lever and on a second end to
the drum, the spring operative to exert force opposite to the actuator; and the
actuator containing a controllably movable shaft pivotally engaged with the lever.
Even further according to another aspect of the present invention there is
provided a printing apparatus containing an image drum; a printing drum; an
impression drum; and a sheet attachment apparatus for attaching a sheet to the
impression drum; and the sheet attachment apparatus containing a sheet gripper
mechanism controllably mounted on the impression drum and operated by an
electromechanical actuator mounted to rotate with the impression drum and to
engage with the gripper mechanism, the actuator operative to open and close the
sheet gripper mechanism.
Even further according to yet another aspect of the present invention there is
provided a printing apparatus wherein the electromechanical actuator is at least one
of: constantly revolving with the impression drum; and constantly engaged with the
gripper mechanism.
Even further according to still another aspect of the present invention there is
provided a printing apparatus wherein the electromechanical actuator is controllable to execute at least one of closing and opening of the sheet attachment apparatus in a
continuously selectable position along a revolution of the impression drum.
Additionally according to another aspect of the present invention there is
provided a printing apparatus wherein the electromechanical actuator is controllable
to open the sheet attachment apparatus to an automatically selectable width, thereby
to adjust for paper thickness.
According to further another aspect of the present invention there is provided a
printing apparatus wherein the electromechanical actuator is controlled by a
microcontroller to execute at least one of closing and opening of the sheet
attachment apparatus with a software selectable force.
According to yet another aspect of the present invention there is provided a
printing apparatus wherein the actuator contains a shaft and a plurality of coils and
wherein a number of the coils is selectably activatable to provide different travel
lengths of the shaft.
According to still another aspect of the present invention there is provided a
printing apparatus wherein the different travel lengths effect at least one of closing
and opening of the sheet attachment apparatus to a selectable opening width.
Further according to another aspect of the present invention there is provided a
printing apparatus wherein the gripper mechanism is operative to pivot about an
axis and grip a sheet on the drum, the gripper mechanism additionally containing a
lever to effect the pivoting, the actuator containing a shaft that is constantly
engaged with the lever. Still further according to another aspect of the present invention there is
provided a printing method for printing on a sheet attached on a revolving drum, the
printing method containing a step of sheet attachment for attaching the sheet to the
drum, the step of sheet attachment containing the steps of: opening a sheet gripper
to receive a sheet; closing the sheet gripper to attach the sheet to the drum; and
opening the sheet gripper to eject the sheet; wherein at least the opening is executed
using a substantially continuously selectable opening position along a revolution of
the drum.
Even further according to another aspect of the present invention there is
provided a further containing setting at least one of: a substantially continuously
selectable opening width; a substantially continuously selectable speed; and a
substantially continuously selectable force.
Unless otherwise defined, all technical and scientific terms used herein have
the same meaning as commonly understood by one of ordinary skill in the art to
which this invention belongs. The materials, methods, and examples provided
herein are illustrative only and not intended to be limiting.
Implementation of the method and system of the present invention involves
performing or completing certain selected tasks or steps manually, automatically, or
a combination thereof. Moreover, according to actual instrumentation and
equipment of preferred embodiments of the method and system of the present
invention, several selected steps could be implemented by hardware or by software
on any operating system of any firmware or a combination thereof. For example, as hardware, selected steps of the invention could be implemented as a chip or a
circuit. As software, selected steps of the invention could be implemented as a
plurality of software instructions being executed by a computer using any suitable
operating system. In any case, selected steps of the method and system of the
invention could be described as being performed by a data processor, such as a
computing platform for executing a plurality of instructions.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is herein described, by way of example only, with reference to
the accompanying drawings. With specific reference now to the drawings in detail,
it is stressed that the particulars shown are by way of example and for purposes of
illustrative discussion of the preferred embodiments of the present invention only,
and are presented in order to provide what is believed to be the most useful and
readily understood description of the principles and conceptual aspects of the
invention. In this regard, no attempt is made to show structural details of the
invention in more detail than is necessary for a fundamental understanding of the
invention, the description taken with the drawings making apparent to those skilled
in the art how the several forms of the invention may be embodied in practice.
In the drawings:
Fig. 1 is a simplified illustration of a sheet attachment apparatus according to a
preferred embodiment of the present invention;
Fig. 2 is a simplified illustration of a sheet attachment apparatus according to
another preferred embodiment of the present invention; Fig. 3 is a simplified illustration of the sheet attachment apparatus of Fig. 1
in the sheet ejection position;
Figs. 4 is a simplified illustration of a sheet attachment apparatus according
to the prior art;
Figs. 5 is a simplified illustrations of the sheet attachment apparatus of Fig. 4
in the open position; and
Fig. 6 is a simplified illustration of a preferred embodiment of the present
invention comprising a printing assembly.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The principles and operation of a sheet attachment apparatus and method
according to the present invention may be better understood with reference to the
drawings and accompanying description.
Before explaining at least one embodiment of the invention in detail, it is to
be understood that the invention is not limited in its application to the details of
construction and the arrangement of the components set forth in the following
description or illustrated in the drawings. The invention is capable of other
embodiments or of being practiced or carried out in various ways. Also, it is to be
understood that the phraseology and terminology employed herein is for the purpose
of description and should not be regarded as limiting.
Reference is now made to Fig. 1, which is a simplified illustration of a sheet
attachment apparatus according to a first embodiment of the present invention. As shown in Fig. 1, an impression drum 10, revolving around axis 11, comprises a
recess 12, in which a gripper 13 is mounted. The gripper 13 (also referred to
hereinbelow as a gripper arm or a clamping arm) is shown in the open position and
is operative to clamp an edge of a sheet to the floor of the recess 12. The gripper 13
comprises a lever 14 operative to maneuver the gripper about a pivot 15. The
gripper 13 is typically kept in the closed position by a spring 16 pulling lever 15. In
the closed position the gripper attaches a sheet 17 to the recess 12 of the drum 10 by
the edge of the sheet 17 as shown in Fig. 22. An electromechanical actuator 18 is
operative to push the lever 14, against the pull of the spring 16, and cause the
gripper 13 to open to accept or release the sheet. The electromechanical actuator 18
is typically constantly engaged with the lever 14 via a pivot 19.
It is appreciated that several types of actuators are useful to operate the
gripper. Such devices may be a linear actuator, a rotary actuator, a stepping motor,
etc. The gripper, lever and the spring are referred to hereinbelow as a gripping
mechanism.
The lever 14, the spring 16 and the actuator 18 are typically mounted inside
the drum 10. The drum is typically a cylinder with two side panels and the actuator
is typically mounted on the inner side of the cylinder's side panel. Alternatively the
lever 14, the spring 16 and the actuator 18 can be mounted on the outer side of the
side panel of the drum. As a further alternative, the lever 14, the spring 16 and the
actuator 18 can be mounted on a special mount inside the cylinder, typically at the center of the cylinder. In all these alternatives the actuator 18 is continuously
rotating with the drum 10.
The gripper may be held in the closed position by the spring and is forced
open by activating the actuator. Alternatively the gripper is held in the closed
position by the actuator and is opened by the spring when the actuator is
deactivated. As a further alternative, the actuator comprises a pair of solenoids, or a
bipolar solenoid, able to force the gripper to open and to close. The actuator 18 is
activated by inducing an electric current via the actuator's conductors 20. The
conductors 20 are connected between the actuator and a pair of conductive rings 21.
A pair of brushes 22 provides electrical contacts between the rings 21 and another
pair of conductors 23 that connects to a controller 24. The controller 24 provides
the current that energizes the actuators to switch the gripper's position in the
required time. The controller is typically mounted on a fixed frame.
The controller 24, typically comprising a microcontroller, is able to operate
the actuator and thereby open or close the gripper at any point along the rotation of
the drum without being limited by stopping stations and the like. By controlling the
amount of current in one embodiment the controller is able to control the width of
the opening of the gripper, for example to adapt the opening to different sheet
thickness. Additionally, different current values induce different opening forces.
The opening force effects the ejection of the sheet, giving the sheet the velocity
required to travel away from the drum and into the sheet collection tray. Different sheets, having different weights, require different ejection
forces. Additionally, the shape of the pulse of the current applied to the actuator
also affects 30 the acceleration and the speed of opening and closing the gripper.
Similarly, if the actuator is arranged to force the gripper closed the amount
of current determines the force applied on the sheet, thus adapting the force to the
sheet's softness, weight, smoothness, etc. ;
Reference is now made to Fig. 2, which is a simplified illustration of a sheet
attachment apparatus according to another preferred embodiment of the present
invention. The embodiment of Fig. 2 is similar to the embodiment of Fig. 1 except
for the following differences. In Fig. 2, the spring 16 is mounted in-line with the
lever 14 and holds the lever in position whether closed or open. Additionally, the
gripper mechanism of Fig. 2 is activated by an actuator 25 that comprises a pair of
solenoids 26 and is operative to force the lever to change positions between the
open and closed positions.
As shown in Fig. 2, the actuator 25 has two pairs of conductors 20 and
accordingly there are two pairs of rings 21, two pairs of brushes 22 and two pairs of
conductors 23 connecting to two output ports of the controller 24.
When changing positions the actuator pushes the lever, which depresses the
spring, and after the spring passes its maximum tension it pushes the lever to the other
position. Alternatively the spring can be mounted to pull the lever into the closed or
open positions. Alternatively, the actuator may comprise two coils 27, typically of different
size, activating the shaft of the actuator in the same direction, however, effecting a
different stroke length. This configuration requires the spring arrangement of Fig. 1.
In this configuration the controller can selectively activate the smaller coil to cause
the gripper to open to a small width or force. Alternatively the controller can
selectively activate the larger coil to cause the gripper to open to a medium width or
force. Further alternatively the controller can activate both coils and open the
gripper to a maximum width or force. Thus the controller can adjust the opening
width to the thickness or weight of the sheet (or the closing force if configured to
close the gripper).
Reference is no made to Fig. 3, which is a simplified illustration of a sheet
30 attachment apparatus according to the preferred embodiment of the present
invention described with reference to Fig. 1. As shown in Fig. 3, the gripper 13 is
opened to eject the sheet 17. An ejector 28, which is a part of the gripper, rotates
and pushes the edge of the sheet 17 away from the drum 10 and into a collection
tray (not shown).
Reference is now made to Fig. 4, which is a simplified illustration of a
typical sheet attachment apparatus according to the prior art
Figs. 4 shows a drum 29, with a recess 30, in which a gripper 31 is mounted.
A lever 32 and a spring 33 hold the gripper in a normally closed position. A cam 34
is mounted on the axle 35 of the drum 29 and freely rotates with the drum. At least one actuator 36 is mounted on a fixed frame 37 (and not on the drum). The
controller 38 controls the actuator 39.
Reference is now made to Fig. 5, which is a simplified illustration of the
sheet attachment apparatus described with reference to Fig. 4 in the open position.
As shown in Fig. 5, the controller 40 activated the actuator 41, which extended an
arrestor 42, which stopped the cam 34 by catching a cam stopper 43. As the drum
29 continues to rotate, a cam follower 44 that rides on the perimeter of the cam 34
pushes the lever 32 against the pull of the spring 33. The lever 32 rotates and opens
the gripper 31. After the lever 32 reaches the apex of the cam 34 the lever 32
continues to travel down the curve of the cam 32 and enables the spring 33 to close
the gripper 31. The controller 45 deactivates the actuator 46, which releases the cam
34, typically before the cam curves up again. The cam 34 then returns to rotate with
the drum 29.
Therefore the actuator 42 is able to open the gripper 31 only at a few discrete
positions, according to the number and positions of the cam stoppers 43 along the
cam circumference. Furthermore, the gripper 31 can be opened only to a specific
width defined by the shape of the cam 34. To have more opening positions, more
actuators, such as actuator 47, are required. To enable different opening widths the
cam may either be replaced with a cam of an adequate shape or a mechanical
adjustment may be made to the shape of the lever.
Contrary to the prior art, the preferred embodiment of the present invention,
as described in Figs. I and 22 use a single actuator 18, typically mounted to rotate with 30 the drum 10. The solenoid operates directly on the lever and is thus
operative to open or close the sheet gripper 13 at any point along the rotation of the
drum 10. The solenoid 18 is in this sense typically constantly engaged with the
sheet gripper 13 and typically continuously rotates with the drum 10. As can be seen
in Figs. 4 and 5, the rotary solenoid 36 of the prior art is mounted on the fixed
frame 37 and not on the drum 29. In the prior art it is the shape of the cam and the
location of the stopping stations that determines the possible opening positions and
the width of the opening. However, in the present embodiments the controller is
able to activate the opening of the gripper practically at any point along the rotation
of the drum and to effect different opening width, or ejection force, by selecting one
of the actuator's coils, or 10 by inducing a different electrical current. Reference is
now made to Fig. 6, which is a simplified illustration of a further embodiment of
the present invention comprising a printing assembly 48 for printing on a sheet. The
printing assembly 48 comprises an image drum 49 on which writing heads 50 create
a static image that collects color ink from ink dispensers 51. Excess ink is removed
by element 52. Typically, the image drum transfers the ink comprising the image to
be printed to a printing drum 53. A sheet 54 that is to be printed is fed from a sheet
dispenser 55 to an impression drum 56. A sheet gripper 13 catches the edge of the
sheet and wraps the sheet around the impression drum. The printing drum then
transfers the ink onto the sheet. The three drums rotate together. As can be seen in
Fig. 6 and in accordance with Figs 1 and 2, the gripper 13 is operated by a solenoid 18 mounted inside or on the side of the impression drum 56. Typically the solenoid
18 rotates continuously with the drum 56.
Alternatively the printing assembly comprises only the image drum and the
impression drum, so that the image drum transfers the ink directly onto the sheet
wrapped around the impression drum.
It is expected that during the life of this patent many relevant sheet
attachment devices and printing systems will be developed and the scope of the
terms herein is intended to include all such new technologies a priori.
It is appreciated that certain features of the invention, which are, for clarity,
described in the context of separate embodiments, may also be provided in
combination in a single embodiment. Conversely, various features of the invention,
which are, for brevity, described in the context of a single embodiment, may also be
provided separately or in any suitable sub-combination.
Although the invention has been described in conjunction with specific
embodiments thereof, it is evident that many alternatives, modifications and
variations will be apparent to those skilled in the art. Accordingly, it is intended to
embrace all such alternatives, modifications and variations that fall within the spirit
and broad scope of the appended claims.
All publications, patents and patent applications mentioned in this
specification are herein incorporated in their entirety by reference into the
specification, to the same extent as if each individual publication, patent or patent
application was specifically and individually indicated to be incorporated herein by reference. In addition, citation or identification of any reference in this application
shall not be construed as an admission that such reference is available as prior art to
the present invention.
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2005/026628 WO2007018504A1 (en) | 2005-07-27 | 2005-07-27 | Printing drum having electromechanical sheet attachment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2005/026628 WO2007018504A1 (en) | 2005-07-27 | 2005-07-27 | Printing drum having electromechanical sheet attachment |
Publications (1)
Publication Number | Publication Date |
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WO2007018504A1 true WO2007018504A1 (en) | 2007-02-15 |
Family
ID=35447660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/026628 WO2007018504A1 (en) | 2005-07-27 | 2005-07-27 | Printing drum having electromechanical sheet attachment |
Country Status (1)
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WO (1) | WO2007018504A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108146062A (en) * | 2016-12-02 | 2018-06-12 | 东远机械工业(昆山)有限公司 | Cylinder press |
DE102017201722A1 (en) | 2017-02-03 | 2018-08-09 | Koenig & Bauer Ag | Conveying device for flat conveyed goods |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3275964A (en) * | 1964-01-06 | 1966-09-27 | Koontz Wagner Electric Company | Multiple position solenoid device |
US3768406A (en) * | 1972-07-03 | 1973-10-30 | Polygraph Leipzig | Sheet gripper |
US5333547A (en) * | 1992-01-10 | 1994-08-02 | Heidelberger Druckmaschinen Ag | Gripper apparatus on sheet-processing machines |
US5390601A (en) * | 1992-07-03 | 1995-02-21 | Heidelberger Druckmaschinen Ag | Gripper control for sheet grippers on a sheet-guiding cylinder or the like in a printing press |
EP0835754A2 (en) * | 1996-10-12 | 1998-04-15 | MAN Roland Druckmaschinen AG | Decentral individual adjustment of gripper supports in sheet feeding cylinders of rotary printing presses |
US20020063383A1 (en) * | 2000-11-03 | 2002-05-30 | Norbert Thunker | Actuator-gripper control |
US20040089178A1 (en) * | 2002-09-06 | 2004-05-13 | Volker Muller | Gripper device in a sheet-processing machine and sheet-processing machine having a gripper device |
-
2005
- 2005-07-27 WO PCT/US2005/026628 patent/WO2007018504A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3275964A (en) * | 1964-01-06 | 1966-09-27 | Koontz Wagner Electric Company | Multiple position solenoid device |
US3768406A (en) * | 1972-07-03 | 1973-10-30 | Polygraph Leipzig | Sheet gripper |
US5333547A (en) * | 1992-01-10 | 1994-08-02 | Heidelberger Druckmaschinen Ag | Gripper apparatus on sheet-processing machines |
US5390601A (en) * | 1992-07-03 | 1995-02-21 | Heidelberger Druckmaschinen Ag | Gripper control for sheet grippers on a sheet-guiding cylinder or the like in a printing press |
EP0835754A2 (en) * | 1996-10-12 | 1998-04-15 | MAN Roland Druckmaschinen AG | Decentral individual adjustment of gripper supports in sheet feeding cylinders of rotary printing presses |
US20020063383A1 (en) * | 2000-11-03 | 2002-05-30 | Norbert Thunker | Actuator-gripper control |
US20040089178A1 (en) * | 2002-09-06 | 2004-05-13 | Volker Muller | Gripper device in a sheet-processing machine and sheet-processing machine having a gripper device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108146062A (en) * | 2016-12-02 | 2018-06-12 | 东远机械工业(昆山)有限公司 | Cylinder press |
CN108146062B (en) * | 2016-12-02 | 2019-11-12 | 东远机械工业(昆山)有限公司 | Cylinder press |
DE102017201722A1 (en) | 2017-02-03 | 2018-08-09 | Koenig & Bauer Ag | Conveying device for flat conveyed goods |
DE102017201722B4 (en) * | 2017-02-03 | 2020-02-27 | Koenig & Bauer Ag | Conveyor for flat goods to be conveyed |
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