EP1397302A1 - Verfahren und vorrichtungen zur ausrichtung eines bogens - Google Patents
Verfahren und vorrichtungen zur ausrichtung eines bogensInfo
- Publication number
- EP1397302A1 EP1397302A1 EP02742796A EP02742796A EP1397302A1 EP 1397302 A1 EP1397302 A1 EP 1397302A1 EP 02742796 A EP02742796 A EP 02742796A EP 02742796 A EP02742796 A EP 02742796A EP 1397302 A1 EP1397302 A1 EP 1397302A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- drive
- drive element
- phase
- stop element
- 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 32
- 230000003797 telogen phase Effects 0.000 claims abstract description 20
- 238000011156 evaluation Methods 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000016507 interphase Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007723 transport mechanism Effects 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
- 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
- B65H7/12—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 double feed or separation
- B65H7/125—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 double feed or separation sensing the double feed or separation without contacting the articles
-
- 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
- B65H7/10—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 side 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
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/06—Movable stops or gauges, e.g. rising and falling front stops
-
- 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
- B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
- B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
-
- 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
- B65H9/20—Assisting by photoelectric, sonic, or pneumatic indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/90—Machine drive
- B65H2403/92—Electric drive
- B65H2403/921—Piezoelectric drives
-
- 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
-
- 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
- B65H2511/24—Irregularities, e.g. in orientation or skewness
-
- 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
- B65H2511/50—Occurence
- B65H2511/51—Presence
-
- 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
- B65H2511/50—Occurence
- B65H2511/51—Presence
- B65H2511/514—Particular portion of element
-
- 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
- B65H2511/50—Occurence
- B65H2511/52—Defective operating conditions
- B65H2511/524—Multiple articles, e.g. double feed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/10—Mass, e.g. mass flow rate; Weight; Inertia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/70—Electrical or magnetic properties, e.g. electric power or current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/82—Sound; Noise
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/20—Sensing or detecting means using electric elements
- B65H2553/24—Inductive detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/30—Sensing or detecting means using acoustic or ultrasonic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2555/00—Actuating means
- B65H2555/10—Actuating means linear
- B65H2555/14—Actuating means linear piezoelectric
Definitions
- the invention relates to methods and devices for aligning a sheet according to the preamble of claims 1, 3, 5, 10 or 11.
- Devices are used, for example but not exclusively, in the function of leading marks for aligning sheets of printing material, particularly paper sheets, prior to printing in a sheetfed press. Alignment of the individual sheets is required because the sheets are removed and fed from a stack, for example using a shingling device. The orientation of the individual sheets after removal from the stack is usually not sufficient to produce a sufficient print quality.
- front marks or side marks are present which have a stop element.
- the sheet is brought to the alignment to the system, wherein the sheet is promoted as long as against the stop element until the sheet rests positively on the stop element.
- at least one stop element is provided for each edge of the sheet to be aligned.
- at least one drive element is present in the known devices that can pull or push the sheet against the stop element.
- the deviation of the individual sheets to be aligned from the required target orientation varies after removal from a stack within certain limits.
- the drive element promotes the arc over a certain distance against the stop element. This maximum feed determines the maximum correctable position error.
- the pressure, with which the drive element comes to the arc for engagement be used.
- the pressure is to be chosen at least so large that the static friction between the drive element and the sheet during the advance sufficient to reliably transmit the actuating movement of the drive element to the sheet.
- the pressure is selected only at most so high that the friction state between the drive element and bow after the stop of the side edge of the sheet on the stop element of static friction in sliding friction passes. In other words, this means that the pressure must be selected between two limits, which ensures that the sheet is advanced to the stop on the stop element together with the drive element, and after the stop of the sheet on the stop element, the drive element slides over the sheet surface .
- a disadvantage of the known devices and the known method for aligning sheets is that the choice of the necessary pressure between sheet and drive element depends on the type of material used in each case of the sheet. In particular, when using paper materials, the setting of the contact pressure must therefore be found again in a material change depending on the type of paper to be processed.
- DE 196 12542 A1 and DE 196 12 545 A1 describe devices for aligning sheets by means of intermittent pulses.
- the subsequently published DE 101 02 227 A1 shows a device for aligning sheets by means of piezo actuators and sensors, but without side marks.
- the invention has for its object to provide methods and apparatus for safe, low-damage alignment of a sheet.
- the achievable with the present invention consist in particular in that the sheet is not conveyed in a single continuous feed movement against the stop element, but several, in particular a plurality of drive phases are cycled through, in which the sheet conveyed respectively in smaller feed movements in the direction of the stop element becomes.
- the resting phases between the individual drive phases no driving force is transmitted from the drive element to the sheet, so that the feed movement of the sheet is decelerated or brought to a standstill in the resting phases.
- the feed motion during each drive phase can be chosen to be relatively small, it follows that the maximum curvature of the arc, which is caused by the advance of the sheet during a drive phase, is relatively low and therefore uncritical.
- the maximum curvature caused by a drive phase can basically be reduced arbitrarily by reducing the feed amount during each individual drive phase. If the drive element during the alignment of the sheet is not disengaged, for example by lifting off the sheet, and thus gradually approximated to the stop element, the sheet would bow after striking the stop element with increasing number of further drive phases more and more, if the Pressure of the drive element against the arc is chosen so strong that the friction state can not pass from static friction to sliding friction.
- a sensor is provided, with which the system can be detected to be aligned side edge of the sheet on the stop element.
- the drive element can then be switched off so that the sheets are not conveyed further in the direction of the stop element.
- components with low inertia can be achieved by the fact that the sheet after contact with the stop element only a few times or not at all in the direction of the stop element is further promoted.
- the sheet will bulge only as far as it is due to the feed during the last drive phases in which the Anschiagelement still comes to rest on the sheet -. Since the feed in each drive phase is relatively small, so that the curvature can be limited below acceptable tolerances.
- the drive element is disengaged in the resting phases.
- the amount of feed during a drive phase can then be selected to be just so great or smaller that the curvature of the sheet resulting from contact of the sheet with the stop element during the individual drive phases completely disappears during the duration of a subsequent rest phase.
- the drive element can be lifted off the sheet during the resting phases, so that the sheet is no longer clamped between the stop element and the drive element. Due to the inherent tension of the bow and the gravity acting on the bow The bow then relaxes, so that the bulge created during the drive phases can always be completely formed back into the subsequent rest phases.
- the drive element is lifted in the resting phases of the sheet, it is particularly advantageous if it is moved according to the feed amount during the drive phases in the rest phases in the opposite direction. As a result, the drive element thereby undergoes a certain closed trajectory during each cycle consisting of a respective drive phase and a rest phase. By cyclically passing through this movement path, the arc can in principle be conveyed as far as desired against the stop element, without the drive element approaching itself further than its movement path corresponding to the stop element.
- a plurality of separate drive members may engage the sheet during alignment of a sheet.
- the sheet can then be conveyed and aligned with several drive elements in one direction or in different directions.
- the drive phases of the various drive elements do not substantially overlap. It can thereby be achieved that the sheet is always conveyed by one of the drive elements in a certain direction and this alignment is not obstructed by other, also with the arc engaging drive elements.
- the alignment quality can be increased in particular by the fact that the feed movement during the individual cycles possible is small and to be traversed during the available alignment time as many cycles as possible.
- the highest possible repetition frequency of the individual cycles is therefore desirable, but with increased frequency also increased design effort is required because the inertia forces increase disproportionately with increasing the movement frequency.
- the frequency range from 500 Hz to 15,000 Hz has proved to be particularly advantageous. In particular, a repetition frequency of approximately 5,000 Hz represents a good compromise between alignment quality and the required construction cost.
- the feed amount by which the sheet is conveyed by the drive element during a single drive phase in the direction of the stop element has a decisive influence on the alignment result.
- the iterative alignment movement can be further refined. It is particularly advantageous if the feed amount during a drive phase is selected in the range of 0.1 ⁇ m to 10 ⁇ m. In particular, a value of about 1 ⁇ m during one cycle has proven to be a suitable feed amount.
- a maximum alignment time of 0.18 seconds is available for aligning each individual sheet. If a frequency of 5,000 Hz is selected as the repetition frequency and the feed amount during a drive phase and thus the maximum application error during a drive phase is 1 ⁇ m, this results in a maximum feed amount over which the sheet can be conveyed during the available alignment time, from 0 , 9 mm. In this case, the arc would thus be approximated within the 0.18 sec in 5,000 individual steps over each 1 micron to the stop element.
- the Drive element can be iteratively approximated to the stop element with cyclically changing feed rates, the system of the sheet on the stop element with a sensor can be detected, so that the drive element can be switched off after stopping the stop element. Since the drive element after installation of the sheet on the stop element can be switched off by evaluation of the sensor signal, can dispense with disengaging the drive element during the resting phases. An excessive bulging of the bow after the attachment to the stop element is excluded by the monitoring by means of the sensor.
- the drive element may be designed such that it can be disengaged, for example by lifting it off the arch.
- a monitoring of the stop of the sheet on the stop element by means of a sensor can be provided for this case, but is not mandatory. Because of the ability to disengage the drive element, the bow can deform back in the resting phases due to gravity and its residual stress against the bulge. That is, the curvature caused by one drive phase in turn disappears in the subsequent rest phase in which the drive element is not engaged with the sheet. It is understood that even in such embodiments of devices in addition a sensor for monitoring the stop of the sheet can be provided on the stop element.
- the drive element can be moved in the rest phases corresponding to the feed amount in the drive phases in the opposite direction to the feed of the sheet so that it passes through a closed trajectory during each individual cycle consisting of drive phase and rest phase.
- the shape of the trajectory can basically be chosen arbitrarily. For example, motion paths are conceivable that are rectangular. Particularly short cycle times can be achieved if the movement path of the drive element corresponds to a substantially ellipsoidal path in a vertical plane.
- a sensor may be provided with which the stop of a side edge of the sheet is detectable on the stop element.
- the sensor is designed in the manner of an electrical or an electronic evaluation device, with which the electric current for driving the drive element during the advance of the sheet in the direction of the stop element is evaluated is particularly advantageous. Because with the stop of the side edge of the sheet on the stop element, the current increases significantly during the feed of the drive element, so that this feature can be evaluated to detect the sheet stop.
- the actual current value is compared with a reference current intensity, which corresponds to the current strength when striking the side edge of the sheet on the stop element, in the evaluation device. As soon as the actual current strength exceeds the reference current intensity at least slightly or taking into account the measurement accuracies, a signal can be output by the evaluation device that the sheet bears against the stop element.
- a microphone is used as a sensor for detecting the sheet stop. With the stop of the bow on the stop element a certain acoustic signal is connected, which can be recorded and evaluated by means of a suitable microphone.
- the drive element cooperates with a counter-holder, so that the arc between the drive element and counter-holder can be clamped.
- a counter-holder for example, serve the surface of a pad on which the sheet rests flat. It is particularly advantageous if the counter-holder in the manner of a slidable pad, in the manner of a pressure roller or in the manner of a corresponding to the first drive element drivable second drive element is formed.
- a double-sheet control is required because the printing process can be disturbed by unintentional collection of two sheets adhering to each other.
- a sensor for double-sheet control can be arranged in the device.
- an electrical or electronic evaluation device serves as a sensor for double-sheet control, with which the electric current for driving the drive element when pressing against the anvil is measurable.
- the drive element comes to an earlier or later time on the layer to be obstructed, namely one or more sheets to the plant. Since the installation of the drive element on the sheet and the subsequent pressing the required current significantly increases, can be deduced by evaluating the current signal over time on the layer thickness and thus the number of sheets between the anvil and the drive element.
- an automatic calibration of the reference time difference can be provided.
- a single arc is drawn in under controlled conditions in a calibration phase and the time difference measured is stored as the reference time difference.
- FIG. 1 shows a first embodiment of a device in a schematically illustrated side view.
- FIG. 2 shows an exemplary embodiment according to FIG. 1 in a second method phase
- FIG. 3 shows an exemplary embodiment according to FIG. 1 in a third method phase
- FIG. 4 shows an exemplary embodiment according to FIG. 1 in a fourth method phase
- FIG. 5 shows an exemplary embodiment according to FIG. 1 in a fifth method phase
- FIG. 6 shows an exemplary embodiment according to FIG. 1 in a sixth method phase
- FIG. 7 shows an embodiment according to FIG. 1 in a seventh process phase
- FIG. 8 shows an exemplary embodiment according to FIG. 1 in an eighth method phase
- FIG. 9 is a process flow diagram for the horizontal velocity of Drive elements of the embodiment of FIG. 1;
- FIG. 10 is a process flow diagram for the vertical speed of the drive element of an embodiment according to FIG. 1;
- FIG. 11 is a current intensity diagram of an electric drive when pressing the drive element of the embodiment of FIG. 1:
- FIG. 12 shows a second embodiment of a device in a schematic view from above
- FIG. 13 shows a detail of the embodiment according to FIG. 12 in a lateral cross section
- FIG. 14 shows a process flow diagram for the horizontal speeds of the drive elements of the exemplary embodiment according to FIG. 12.
- FIGS. 1 to 8 show a first exemplary embodiment of a device 01.
- a sheet 02 in particular paper sheet, supported on a substrate 03 surface resting on the device 01.
- the device 01 consists essentially of a stop element 04, on which the front side edge 06 of the sheet 02 can be aligned by the fact that it comes into positive contact with a contact surface 07.
- a sensor 41 may be installed (see Fig. 13).
- the device 01 has a drive element 08 that can be moved horizontally in the x-direction and vertically in the y-direction and can be driven by means of a drive device 09, shown schematically, with a piezoactuator.
- the sheet 02 is not yet on Stop element 04 and the drive element 08 is arranged at a certain distance above the sheet 02.
- the drive element 08 can now be moved downward in accordance with the movement arrows 11, so that the sheet 02 between the drive element 08 and the base 03 is clamped with a certain contact pressure.
- the drive element 08 is moved to the left in accordance with the movement arrow 12. Due to the static friction acting between the sheet 02 and the underside of the drive element 08, the adjusting movement of the drive element 08 is transmitted to the sheet 02, so that this results in synchronism with the drive element 08 according to the movement arrow 13 for a certain feed amount in the positive x-direction becomes.
- drive phase so the sheet 02 is approximated according to the feed of the drive element 08 by a certain distance to the stop element 04.
- the degree of this approximation is determined by the feed amount 14 (see FIG. 3) of the drive element 08 during a drive phase T A.
- the feed amount 14 during a drive phase T A is 0.1 ⁇ m to 10 ⁇ m, in particular approximately 1 ⁇ m.
- the drive element 08 As shown in Fig. 3 according to the movement arrows 16 moved upwards, so that it comes out of engagement.
- the sheet 02 remains in the rest phase beginning with it without feed on the base 03.
- move down. 1 to 4 represent a complete cycle for advancing the sheet 2 in the direction of the stop element 04, wherein successively a drive phase (see FIG. 2), in which the sheet 02 is conveyed, and an adjacent rest phase (see FIG. 3, 4 and 1) in which the sheet 02 is not conveyed, is passed through.
- a drive phase see FIG. 2
- an adjacent rest phase see FIG. 3, 4 and 1
- FIGS. 5 to 8 the movement cycle of the drive element 08 after the abutment of the sheet 02 on the stop element 04 is shown.
- the sheet 02 is first clamped between the base 03 and the drive element 08 (see FIG. 5) and then the drive element 08 moved horizontally to the left (positive x-direction) (see FIG. 6). Since the front side edge 06 of the sheet 02 already abuts against the contact surface 07 of the stop element 04, no further feed is effected by the advancing movement of the drive element 08, but the arc 02 slightly bulges in the region 18 between the stop element 04 and the drive element 08 (FIG 7). The curvature is the smaller, the smaller the feed amount 14 (Fig. 3) is selected.
- FIGS. 9 and 10 show the feed rates V x of the drive element 08 in the x-direction and y-direction during a complete movement cycle consisting of a drive phase T A and an adjacent rest phase T R.
- the duration of the drive phase T A corresponds to the time period T A.
- the drive element 08 is moved horizontally at the maximum feed speed V X MAX .
- This is followed by a short stoppage phase in the x direction at T 2 -T 3 in which the drive element 08 is lifted vertically upwards.
- the drive element 08 is then moved according to the feed rate V MAX in the drive phase T A in the opposite direction.
- FIG. 10 shows the method sequence of the travel speed of the drive element 08 in the y-direction.
- Fig. 11 shows a graph of the current I to drive the drive element 08 when pressed against the backing 03 used as a backing 03 under tension of the bow 02 over time.
- the solid functional graph 20 corresponds to the course, as he only one when jamming Arc 02 between the drive element 08 and acting as an anvil 03 pad 03 corresponds.
- the dashed function graph 21 shows the course in the clamping of two overlapping sheets 02.
- the current increases in the clamping of two sheets 02 (function graph 21) due to the resulting smaller distance between the bottom of the drive element 08 and top of the sheet 02 already at an earlier time t. This effect can be exploited to detect an unwanted double sheet feeder.
- the Reference time difference T S ⁇ ⁇ determined that it takes until a reference current I B is reached during pressing. Will now misfeed a double sheet, the reference current l B is already at an earlier time T Def i he achieved, so that B can be determined in an electronic evaluation system by evaluating the time difference between the stored T soii and the measured time to reach the reference current I, whether only one or more sheets 02 between the pad 03 and the drive element 08 are clamped.
- Fig. 12 shows a second embodiment of a device 25 for aligning a sheet 26 which on a base 27, for. B. a counter-holder 27 rests flat. At the edges of the pad 27 are three stop elements 28; 29; 31 arranged each with a drive element 32; 33; 34 work together. The stop elements 28; 29 serve as front lays and the stop element 31 as a side mark. By iterative approach of the side edges 36 and 37 of the sheet 26 to the stop elements 28; 29; 31, the sheet 26 can be aligned in two directions (x and z).
- Fig. 13 the operation of the stop elements 28; 29; 31 in cooperation with the drive elements 32; 33; 34 exemplified by the stop element 28 in cooperation with the drive element 32.
- the drive member 32 In the lower part of the ellipsoidal trajectory 38, the drive member 32 is in contact with the underlying sheet 26 and promotes this in the direction of the stop element 28.
- a Sensor 41 serving microphone 41 installed that can detect the connected to the stop of the side edge 36 on the stop element 28 acoustic signal and forwards to a control device, not shown. As soon as the sensor 41 receives a signal, the drive element 32 is moved to a basic position and then no longer driven.
- a projecting nose 42 is provided through which a groove between the underside of the nose 42 and the top of the pad 27 is formed.
- the side edge 36 of the sheet 26 can be inserted so that the nose 42 can come from above on the sheet 26 in sections to the plant and thereby limits the curvature of the arc 26 in this area.
- a procedure can be selected, in each case only one drive element 32; 33; 34 causes a feed on the sheet 26.
- a suitable procedure is shown in FIG. It can be seen that the available cycle time T ZYK , which is 0.0002 seconds at a frequency of approximately 500 Hz to 15,000 Hz, in particular at a frequency of approximately 5,000 Hz, is applied to the three drive elements 32; 33; 34 is split. In each case within one third of the available cycle time T ZYK one of the drive elements 32; 33 and 34 driven at a certain speed amount V B in the x and z-direction.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering Or Overturning Sheets (AREA)
- Vehicle Body Suspensions (AREA)
- Window Of Vehicle (AREA)
- Soil Working Implements (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Processing Of Terminals (AREA)
- Attitude Control For Articles On Conveyors (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03103926A EP1396451B1 (de) | 2001-06-20 | 2002-06-06 | Vorrichtung zur Ausrichtung eines Bogens |
| EP03103934A EP1396452B1 (de) | 2001-06-20 | 2002-06-06 | Vorrichtung zur Ausrichtung eines Bogens |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10129744 | 2001-06-20 | ||
| DE10129744A DE10129744A1 (de) | 2001-06-20 | 2001-06-20 | Verfahren und Vorrichtungen zur Ausrichtung eines Bogens |
| PCT/DE2002/002050 WO2003000576A1 (de) | 2001-06-20 | 2002-06-06 | Verfahren und vorrichtungen zur ausrichtung eines bogens |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03103926A Division EP1396451B1 (de) | 2001-06-20 | 2002-06-06 | Vorrichtung zur Ausrichtung eines Bogens |
| EP03103934A Division EP1396452B1 (de) | 2001-06-20 | 2002-06-06 | Vorrichtung zur Ausrichtung eines Bogens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1397302A1 true EP1397302A1 (de) | 2004-03-17 |
| EP1397302B1 EP1397302B1 (de) | 2004-11-10 |
Family
ID=7688837
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03103934A Expired - Lifetime EP1396452B1 (de) | 2001-06-20 | 2002-06-06 | Vorrichtung zur Ausrichtung eines Bogens |
| EP03103926A Expired - Lifetime EP1396451B1 (de) | 2001-06-20 | 2002-06-06 | Vorrichtung zur Ausrichtung eines Bogens |
| EP02742796A Expired - Lifetime EP1397302B1 (de) | 2001-06-20 | 2002-06-06 | Verfahren zur ausrichtung eines bogens |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03103934A Expired - Lifetime EP1396452B1 (de) | 2001-06-20 | 2002-06-06 | Vorrichtung zur Ausrichtung eines Bogens |
| EP03103926A Expired - Lifetime EP1396451B1 (de) | 2001-06-20 | 2002-06-06 | Vorrichtung zur Ausrichtung eines Bogens |
Country Status (4)
| Country | Link |
|---|---|
| EP (3) | EP1396452B1 (de) |
| AT (3) | ATE281998T1 (de) |
| DE (4) | DE10129744A1 (de) |
| WO (1) | WO2003000576A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010064064B4 (de) * | 2010-12-23 | 2023-03-09 | manroland sheetfed GmbH | Verfahren zur Bogenausrichtung |
| DE102011084696A1 (de) * | 2011-10-18 | 2013-04-18 | Hostert Pro Gmbh | Vorrichtung zum Zuführen von Bogenmaterial |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3908986A (en) * | 1973-06-15 | 1975-09-30 | Ibm | Sheet aligning mechanism |
| DE4116409C2 (de) * | 1991-05-18 | 1995-01-05 | Roland Man Druckmasch | Seitenmarken- und Überziehkontrolle einer Rotations-Bogendruckmaschine |
| DE19612545A1 (de) * | 1996-03-29 | 1997-10-02 | Kba Planeta Ag | Verfahren und Einrichtung zum Ausrichten von Bogen |
| DE19612542B4 (de) * | 1996-03-29 | 2004-04-08 | Koenig & Bauer Ag | Einrichtung zum Ausrichten von Bogen |
| DE19615288B4 (de) * | 1996-04-18 | 2004-04-08 | Koenig & Bauer Ag | Einrichtung zum Ausrichten von Bogen |
| DE19644946A1 (de) * | 1996-10-29 | 1998-04-30 | Kba Planeta Ag | Verfahren und Einrichtung zum Transport von Bogen |
| DE19822307B4 (de) * | 1997-07-12 | 2008-12-24 | Heidelberger Druckmaschinen Ag | Verfahren zum paßgerechten Ausrichten von Bogen |
| DE10102227A1 (de) * | 2000-02-22 | 2001-08-23 | Heidelberger Druckmasch Ag | Verfahren und Vorrichtung zur Ausrichtung von Bogen |
-
2001
- 2001-06-20 DE DE10129744A patent/DE10129744A1/de not_active Withdrawn
-
2002
- 2002-06-06 DE DE50201521T patent/DE50201521D1/de not_active Expired - Fee Related
- 2002-06-06 WO PCT/DE2002/002050 patent/WO2003000576A1/de not_active Ceased
- 2002-06-06 AT AT02742796T patent/ATE281998T1/de not_active IP Right Cessation
- 2002-06-06 DE DE50201844T patent/DE50201844D1/de not_active Expired - Fee Related
- 2002-06-06 DE DE50201520T patent/DE50201520D1/de not_active Expired - Fee Related
- 2002-06-06 EP EP03103934A patent/EP1396452B1/de not_active Expired - Lifetime
- 2002-06-06 AT AT03103934T patent/ATE285375T1/de not_active IP Right Cessation
- 2002-06-06 EP EP03103926A patent/EP1396451B1/de not_active Expired - Lifetime
- 2002-06-06 AT AT03103926T patent/ATE281997T1/de not_active IP Right Cessation
- 2002-06-06 EP EP02742796A patent/EP1397302B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03000576A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1397302B1 (de) | 2004-11-10 |
| DE50201520D1 (de) | 2004-12-16 |
| EP1396452B1 (de) | 2004-12-22 |
| EP1396451B1 (de) | 2004-11-10 |
| ATE281997T1 (de) | 2004-11-15 |
| DE10129744A1 (de) | 2003-01-09 |
| ATE281998T1 (de) | 2004-11-15 |
| EP1396452A1 (de) | 2004-03-10 |
| DE50201521D1 (de) | 2004-12-16 |
| WO2003000576A1 (de) | 2003-01-03 |
| EP1396451A1 (de) | 2004-03-10 |
| DE50201844D1 (de) | 2005-01-27 |
| ATE285375T1 (de) | 2005-01-15 |
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