EP0622320B1 - Dispositif et procédé pour couper un matériel en feuilles - Google Patents

Dispositif et procédé pour couper un matériel en feuilles Download PDF

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Publication number
EP0622320B1
EP0622320B1 EP94104936A EP94104936A EP0622320B1 EP 0622320 B1 EP0622320 B1 EP 0622320B1 EP 94104936 A EP94104936 A EP 94104936A EP 94104936 A EP94104936 A EP 94104936A EP 0622320 B1 EP0622320 B1 EP 0622320B1
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EP
European Patent Office
Prior art keywords
processing
sheet
ply
processing means
transverse
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.)
Expired - Lifetime
Application number
EP94104936A
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German (de)
English (en)
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EP0622320A1 (fr
Inventor
Hermann Buck
Norbert Ganahl
Hans Albrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bielomatik Leuze GmbH and Co KG
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Bielomatik Leuze GmbH and Co KG
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Publication of EP0622320A1 publication Critical patent/EP0622320A1/fr
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Publication of EP0622320B1 publication Critical patent/EP0622320B1/fr
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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
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D11/00—Combinations of several similar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/32—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier with the record carrier formed by the work itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D9/00—Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus

Definitions

  • the invention relates to a device according to the preamble of claim 1 and a method according to the preamble of claim 9.
  • Starting material such as a material web
  • sheet layers which, in contrast to metallic sheet metal layers, veneer layers or non-metallic building boards, are essential may have greater flexibility or less elasticity and inherent rigidity, such as this This is the case for sheet layers made of paper or paper-like materials, the weight of which per square meter is at most 200 or 100 g or significantly less than the corresponding weight of the other sheet layers mentioned.
  • the thickness of the sheet layers can also be very small, with less than half or two tenths of a millimeter.
  • Sheet layers are separated, for example, from a material web of a predetermined width by cuts transverse to its longitudinal direction and are intended to be dimensionally stable within very narrow tolerance limits, in particular with regard to the distance between the two transverse edges.
  • the material web or are the sheet layers before the format-containing edge cuts provided with features such as watermarks, printed marks or other things which, as in the case of banknotes, documents or the like. must have a precisely predetermined position with respect to the outer edges of the sheet layer, it is still difficult to cut the four outer edges, which are usually at right angles to one another.
  • Watermark e.g. can only be applied to the starting material within relatively large position tolerances, especially with regard to the longitudinal direction of the web.
  • the individual feature units can be at a greater distance from one another in the longitudinal direction of the web than that which would allow subsequent sheet layers to be separated from the material web by a single cut in such a way that the two outer edges of both sheet layers produced by this cut would then have the specified distances to the respective characteristic unit.
  • only one outer edge of a sheet layer is produced with one cut in each case, while the following sheet layer in the area of the associated outer edge is only pre-cut with oversize and then cut again in a format-appropriate manner by means of a further cut.
  • the processing which permanently changes the shape of the respective sheet layer can be partially or entirely no separating cut, but instead, for example, a perforation, a crimp, a fold or the like, which is to be made, for example, in a transverse zone adjoining a transverse edge. Furthermore, processing which does not change the shape can be provided, such as is provided, for example, by transport, counting, sensor testing, cleaning, formation of sheet layer streams or sheet layer stacking or the like.
  • a larger number of single sheets or sheet layers can be stacked on top of one another in the same direction for the format-specific cutting of the only pre-cut outer or transverse edge, after which these sheet layers can be aligned flush with one another in the stack with respect to one to three finished-cut outer edges. Then the pre-cut outer edges of all the sheet layers in the stack are finished cut on a face cutter in a common cut, which proceeds across the stack from sheet layer to sheet layer across the plane of the sheet layers. Such a cut can only be carried out with sufficient accuracy for all sheet layers if the stack thickness is relatively limited. It also has the consequence that the cut edges of adjacent sheet layers due to the cut deformation e.g. interlocking in that fiber particles of the material pressed from fibers or separate sheet layers come into engagement with one another.
  • the stacks must be temporarily stored at least once until they can be sent to the subsequent processing.
  • the sheet layers for cross cutting, finish cutting, counting and packaging each have to be implemented on different devices, which can easily make it possible that sheet layers from different batches of paper are contained in a finished stacked package, namely from separate material webs or web rolls, the material of which changes due to Manufacturing tolerances usually differ with regard to one or more material properties, e.g. Grip, wrinkle properties, specific weight and the like. Due to the intermediate storage of the sheet layers at least once between two processing cuts, e.g. on stack pallets, errors in the sheet layers are often only detectable after a relatively long time, namely only when the sheet layers are subjected to further processing or quality inspection.
  • EP-A-0 329 089 shows a device with a cross cutter following a hole punch, which processes both transverse zones of the respective sheet position in only one processing plane.
  • two cutting heads process the two transverse zones of the respective sheet layer in two separate processing planes, the distance from one another of which is more than twice the distance between the transverse zones of the respective sheet layer .
  • the front transverse zone with separation of the sheet layer from the material web and only then finished the rear transverse zone.
  • the invention is also based on the object of creating a device or a method of the type mentioned, by means of which disadvantages of known designs or work processes or disadvantages of the type described are avoided and which ensure accelerated processing, in particular with increased processing accuracy. It is also expedient to substantially completely avoid the disadvantageous method steps mentioned.
  • the tool unit carrying out the two machining operations or their zone for the machining operation and the material between the first and the second machining operations are moved relative to one another by an amount which can differ from the distance between these machining operations, in particular is smaller.
  • the two operations are expediently carried out by separate tools, the separate work zones are one behind the other and are controlled so that the second machining takes place in precise dependence on the first machining.
  • Such processing devices are expediently used for the processing mentioned, which are suitable for carrying out the processing during the passage of the material directed transversely to the processing zone, in which case the respective tool is also controlled as a function of the movement path of the material and the unit which moves the material in a slip-free manner with respect to the processing zones ends the securing of the position.
  • the length distance between the two processes can be chosen essentially independently of the distance between the two working positions and only by Control of the movements of the tools or the material feed can be determined. The control can advantageously be adjusted to change the distance between the machining operations.
  • the first processing is expediently carried out in register-dependent manner on a marking of the material in such a way that the distance of this processing from the marking is precisely defined.
  • the marking is first detected and then the mutual supply between the material and the processing unit is controlled until it is processed.
  • One of the two movements of the material and the tool can take place from the detection of the marking to the beginning or to the end of the respective processing at a substantially uniform speed, so that only the other movement can be changed in its speed in order to adjust to the correct machining intervention got to.
  • the material is moved further and thereby brought into the predetermined position for the second processing, which can take place with continued uniform movement of at least one longitudinal section of the material with respect to both working positions.
  • the respective processing device determines an associated processing feed rate during the essentially slip-free intervention in the material. This can be about the same as the feed rate of the material. However, it can also be slightly smaller than that of the material in the area before processing or in the area of the advancing position securing, so that the material is then slightly compressed between the associated working position and the position securing without permanent deformation and immediately after release from the processing intervention is stretched again. Furthermore, it can be greater than the corresponding speed of movement of the material.
  • the machining feed rate can advantageously be changed to match the speed of the material.
  • a tool which is driven to rotate about an axis approximately parallel to the feed direction and approximately parallel to the working plane, and which is provided with a work area which is inclined by a few angular degrees in relation to the axis of rotation in the manner of an incline
  • the machining feed speed can thereby be adjusted that the angle between the axis of rotation and the feed direction is changed in view of the working plane.
  • the angular position of a counter tool that may be provided is simultaneously changed in the same way, so that the mutual engagement of tool and counter tool remains the same despite adjustment.
  • the respective machining device does not carry out any machining, although the working movement of its tool is not interrupted or the tool passes through the working position.
  • the tool can be withdrawn transversely to the plane of the material by an amount such that it also releases an uninterrupted passage gap for the material when it executes its movement, which is in itself intended for processing.
  • the intervals between successive machining operations can be multiplied accordingly without the need to significantly change the interval between the machining devices.
  • Successive processing devices can be alternately transferred to the idle position and the working position.
  • a position securing of the type mentioned for the material can be provided between immediately successive processing devices, by means of which the material is kept precisely defined in relation to the working positions during the first and / or second processing, essentially without slippage, but also during the run can be.
  • This securing of the position holds the material together with the securing of the position in front of or in front of both processing devices during the first processing and possibly during the second processing, after the end of which it transports the material or the separated sheet layer through the subsequent processing device which is not in processing engagement and at the same time absorbs the subsequent sections of the material.
  • a device can also be provided to bring the sheet layers, which are suitable for bringing the sheet layers, which are already running at an intermediate distance one after the other, to a larger or smaller distance, for example, of about 20 mm subsequently brought into an overlap layer in which the sheet layers which overlap one another uniformly form a scaled continuous layer flow.
  • the sheet layers can then be shifted against each other so that they form a sheet stack, in which all sheet layers are essentially flush with one another with essentially all their corresponding outer edges.
  • sheet layers which are to be discharged from the processing path for different purposes, are first led away through a common exit and only then moved on via a sorting switch or the like in optionally different directions of movement.
  • Such sheet layers can be conveyed, for example, on the one hand for control purposes into a storage area accessible for removal and on the other hand directly into a shredding plant, if they have been recorded as a committee.
  • rejects result either from material errors that can already be recorded before the above-mentioned cross-processing operations or from processing errors in cross-processing that can be determined from the work movements of the associated tools.
  • the exit or the sorting switch is automatically switched to discharge in such a way that only the respective reject sheet position is thereby transferred to the intended branch path.
  • sheet layers 1 according to FIG. 1 are to be completely separated from a material or a material web 2, the successive, completely cut sheet layers advantageously being of exactly the same size or of the same design. They then each have two continuously parallel longitudinal sheet edges 3, 4 and two transverse sheet edges 5, 6 at right angles thereto.
  • the material web 2 is longitudinally marked with marks 7, e.g. Watermarks, which have predetermined or equal longitudinal distances from each other. However, due to manufacturing tolerances or expansions or shrinkages of the material web 2, these longitudinal distances deviate from the respective nominal size.
  • the marks 7 are arranged so that one sheet layer 1 contains such a mark 7 as a reference dimension.
  • the material web 2 is provided with further marks 8 by punching out in the area of a longitudinal edge 4 or the like in such a way that each mark 7 is assigned a mark 8 in the correct position and each sheet layer 1 has such a mark 8.
  • This can e.g. In the case of stacked sheet layers 1, it is determined from the outside, based on the congruence of the marks 8, whether all sheet layers originate from the same production process.
  • the longitudinal distance between the marks 7 is greater than the length of the respective sheet layer 1 to be measured parallel thereto, so that between each successive sheet layer a waste strip 9 is to be separated out, which is significantly smaller than the respective sheet layer 1 and through which one between the successive sheet layers 1 wide gap is formed.
  • the material web 2 and also the separated sheet layers 1 are moved continuously in their longitudinal direction or in the running direction 11, the respective material section determining a working plane 12 corresponding to its plane, which in FIG Cross section perpendicular to the running direction 11 can be at least approximately horizontal in the area in which the sheet layers 1 are separated.
  • the front end of the material web 2 forms a material edge 10 which is complementary to the sheet edge 6 and which lies by the width of the waste strip 9 in front of the predetermined front sheet edge 5 of the next sheet ply to be separated. While the rear end of this sheet layer is still connected in one piece to the material web 2, its sheet edge 5 is produced by a cross section, the associated waste strip 9 being cut off and guided away from the track of the material web 2 or the sheet layer 1 to a collecting station. To produce the sheet edge 5 in a precise position, the mark 7 is first detected and then the position of the associated cross section is determined. Immediately after the production of the sheet edge 5 has ended, the associated rear sheet edge 6 is produced by a further cross section, the position of which is in turn determined as a function of the mark 7 or the sheet edge 5. A further material edge 10 is simultaneously created by this further cross section.
  • the device 13 provided for this processing and constructed in the manner of a production line has a frame-like base which can be assembled along a conveyor path from frame parts which are arranged one behind the other, so that the individual functional units of the device 13 can be assembled in a modular manner according to the respective requirements.
  • at least one store 14 is provided for the respective material web 2, which is called Roll is rotatably mounted about an axis approximately parallel to the plane of the material web 2.
  • the material web 2 is transferred from the store 14 via a length buffer 15, e.g. at least one dancer roller, from which it passes through the effective range of a detector 16, with which material defects are scanned and detected without contact.
  • the material web 2 then passes through a further detector 17, which scans the marks 7 in succession and detects them in such a way that a subsequent processing device 18 is then controlled. With this processing device 18, the marks 8 are produced in one pass.
  • the material web 2 passes through an approximately vertical direction through a web cleaner 19, with which it is ensured that the web parts separated for the manufacture of the marks 8 are completely removed from the material web 2 and do not run with it.
  • the material web 2 can then pass through the area of action of one or more further detectors, with which e.g. the position and shape of the marks 8 or the effectiveness of the web cleaning can be scanned without contact or in the transmitted light method.
  • the material web 2 runs approximately in the horizontal working plane 12 through a processing device, namely an edge cutter 20, with which a narrow edge strip is cut off on each long side of the material web 2 in such a way that the material edges 3, 4 are then formed.
  • the edge cutter 20 has a slitter consisting of an upper and lower knife on each side, the two slitters being adjustable transversely to one another in order to be able to change the distance between the material edges 3, 4 or the width of the material web.
  • the material web 2 passes through a further detector 21, with which the respective mark 7 is again detected without contact.
  • the material web 2 passes through a processing unit 22, in which the two sheet edges 5, 6 are produced with separate processing devices, such as cross cutters, in the area of device locations which are immediately behind one another in the running direction 11.
  • the unit 22 operates at a very high frequency, so that it can carry out several hundred cuts or separate sheet layers 1 per minute.
  • the sheet layers 1 thus separated are taken over by a conveyor 23, which can already grasp the respective sheet position or the front end of the material web 2 before the sheet edge 6 has been cut or before the sheet layer has passed through the last cross cutter in the running direction 11, so that the sheet position is always promoted essentially slip-free.
  • a counting device 24 with which all sheet layers 1 can be counted, namely including those which are intended as rejects or as a control for the discharge.
  • the ejector 25 provided for this purpose is provided immediately after the counting device and transfers the ejected sheet layers 1 either into a tray 26 for removal for inspection or into a sheet layer shredder 27 in which the sheet layer is shredded.
  • the transporter 23 can be set to a transport speed that deviates from the path speed of the unit 22, it can be used to move the gap between the successive ones formed by the separated waste strip 9 Sheet layers 1 can be enlarged or reduced depending on the requirements.
  • the distance between successive sheet layers 1 can, however, also be effected immediately after the ejector 25, because after ejecting individual sheet layers there are correspondingly larger gaps in the gap, which must be corrected such that after leaving the device 28 performing this distance correction, the gaps between successive ones Sheet layers 1 are approximately the same size.
  • the sheet layers 1 again individually pass through a counting device 29, with which only the defect-free sheet layers intended for further processing are now counted.
  • the sheet layers 1 can optionally be fed with a distribution switch 30 to two separate transport routes, one of which can form an approximately level continuation of the working level 12 and which are advantageously offset approximately at right angles to the working level 12 and are approximately congruent.
  • Each transport route has an overlap device 32 or 32a and immediately in front of it a separate counting device 31 or 31a with which the sheet layers 1 conveyed into each transport route can be counted independently of one another.
  • the counting result of the counter 31, 31a can be continuously compared with that of the counter 29 or 24 in the manner of a redudant count. If the count results differ from one another, then a signal can be derived therefrom, by means of which the work of the device 13 is stopped.
  • the result of a counting device which counts the sheet layers in the area of the unit 22 or of its last cross cutter can also be included in this comparison count.
  • Each overlapping device 32, 32a is followed by a separate stacking device 33, 33a, in which a precisely predetermined number of the overlapping sheet layers is stacked to form an edge-flush stack.
  • a lifting support 34 which can be moved in such a way that it can selectively take over the sheet ply stack produced there from each stacking device 33, 33a.
  • the lifting carrier 34 can transfer the accepted stack to a take-over memory 35 following in the running direction, which is followed by an intermediate storage 36, a packaging device 37, an exit conveyor 38 or the like.
  • the processing unit 22 has two separate processing devices or cross cutters 39, 40, the processing planes 41, 42 of which lie transversely to the material web and are at a distance from one another in the running direction 11 which are smaller than the smallest length of the sheet layers 1 to be produced.
  • Each cross cutter 39 or 40 has on one side of the material web 2 a knife shaft 43 or 45 with a knife bar inserted on the circumference and on the other side of the material web 2 a counter knife 44 or 46 fixed during the cut, with the cutting edge of the cutting edge of the Knife bar of the respective knife shaft 43 or 45 cooperates shearingly during their rotary movement.
  • the cutter shaft 43 of the first cross cutter 39 lies above the material web 2 and the cutter shaft 45 of the second cross cutter 40 on the underside, so that the distance between the two cross cutters 39, 40 can be chosen to be very small without mutual interference.
  • a conveyor 47 for the material web 2 which for all precise machining of the paper web 2 and the sheet layers 1 Material feed and the associated material paths determined so that it acts as a slip-free web holder for the material web 2. All processing or cutting operations that are required for the completion of the respective sheet layer 1 take place before they are separated from the material web 2, which represents the last processing for the production of the sheet layers 1 that are cut on four sides to the correct format and register and perforated at the edges.
  • An electronic path length measuring system is assigned to the conveyor 47, by means of which the feed paths are precisely recorded at a constant feed speed.
  • the transporter 47 has a driven feed roller and a pressure roller which is resilient in its pressure surface and which presses the material web 2 against the feed roller with a contact pressure which can be changed by adjustment.
  • a further conveyor 48 which also lies on both sides of the material web 2 and presses it between itself in the form of a driven transport roller 50 lying under the material web 2 and overlying counter rollers 51, which have the material web only press against the transport roller 50 with its own weight.
  • Endless conveyor belts 53 which are driven by the conveyor roller 50, are guided around the conveyor roller 50 and a further deflection 52, which is offset against the direction of travel 11 and is located directly adjacent to the counter knife 44.
  • a suction device 49 is assigned to the strand of the conveyor belts 53 adjacent to the material web 2, with which the material web 2 can be sucked against this strand without slip until it reaches the transport nip between the transport roller 50 and the counter rollers 51.
  • the knife roller 43 or 45 of the respective cross cutter 39 or 40 has a working direction of rotation which coincides with the advancing movement of the material web 2.
  • the knife roller 45 has a layer holder 54 which secures the waste strip 9 in position against the outer circumference of the associated roller body by suction before the associated cut.
  • the waste strip 9 adheres immediately adjacent to the knife bar after the cut and follows the working movement of the tool 45, so that the waste strip 9 is safely removed from the transport path of the sheet layers 1.
  • the roller body has channel openings on the outer circumference, which are connected to a suction source before and during the cutting work.
  • connection to the suction source is shut off and then replaced by a connection to a pressure source when the waste strip 9 is located in the region of the receiving opening of a collecting shaft 55 which separates the knife shaft 45 from the counter knife 46 surrounding area on a partial circumference.
  • the waste strip 9 is transferred into the chute 55 by the centrifugal forces acting on it and the blown air.
  • the cleaning device 56 formed in this way can also engage on the circumference of the knife shaft 45 and, if appropriate, lie within the shaft 55
  • Detachers 57 for example a rotating brush roller, have, which mechanically detaches the waste parts 9 from the knife shaft 45 and thereby prevents their return to the cutting zone.
  • a suction flow can also be generated in the chute 55, which sucks off the waste parts 9 from the knife shaft 45.
  • the work of the cross cutter 39 is controlled precisely in dependence on the work of the cross cutter 40 in that the rotary movement of the knife shaft 43 electronically controlled follows the rotary movement of the knife shaft 45 with a phase or rotational angle shift such that the cross cutter 39 then carries out the cut, if the material web 2 has been moved further by a cut after the cut by the cross cutter 40, which corresponds to the cut length of a sheet layer 1 minus the distance between the planes 41, 42.
  • the rotating or other working movement of the tools 43, 45 is detected by detection devices or initiators and, taking into account the measurement results of the web length measurement system, is evaluated electronically by comparison of the target and actual value, it thereby being possible to determine whether the cutting length produced is within the predetermined range Tolerance lies. From this, a signal is derived which controls the ejector 25 in such a way that sheet layers which are possibly out of tolerance are ejected.
  • the tolerance can e.g. are of the order of plus / minus half a millimeter.
  • Each tool 43, 45 is driven by a separate drive in the form of, for example, a frequency-controlled, dynamic three-phase servo motor with a digital controller, so that even with varying longitudinal distances between the marks 7, the material web 2 has a uniform speed Sheet layers can be cut out in register and format.
  • Knife shaft 45 reacts to changes in the distances between marks 7 via its drive with positive or negative accelerations, which knife shaft 43 follows accordingly.
  • the cutting gap of the respective cross cutter 39, 40 can be opened in such a way that despite the rotating knife bar passing by no cut is made on counter knife 44 or 46.
  • the respective counter knife 44 or 46 consisting essentially of knife bar and last support, can be retracted with an actuating drive, forcibly controlled, transversely to the working plane by a measure of a few tenths of a millimeter, with this small movement path also resulting in only very low inertia forces surrender.
  • the actuator has, for example, a mechanical cam control 59, which via a Handlebar drive, such as a rocker arm 60 and a plunger 61, is positively connected to the strip holder.
  • a Handlebar drive such as a rocker arm 60 and a plunger 61
  • This in turn is movably supported by a bearing, which is expediently formed by springs 62 in the form of leaf springs or the like, which at the same time serve as return springs for returning the counter knife 44, 46 into the working position and carry the strip holder at freely projecting ends.
  • This storage and the storage for the associated, driven in the working tool 43, 45 are advantageously provided on a common bracket 63, which also carries the actuator, so that the components mentioned form a self-contained assembly assembly that pre-assembled as a whole can be inserted into the device frame.
  • the actuator is located on the same side of the working plane as the associated counter knife 44 or 46.
  • the respective strip holder is applied by the springs 62 against stops of the bracket 63, which are designed in the manner of prism-like centerings 64, so that the counter knife 44 or 46 is always very precisely aligned despite simple storage in the working position.
  • the actuators or cam controls 59 can be driven as a function of the feed dog 47 or in synchronism with it so that each tool 43 or 45 only cuts every second or further revolution.
  • the latter is moved into the idle position, so that its tools only come into cutting engagement during the following circulation and therefore cut the material web 2 by a correspondingly greater length the cross cutter 39 can be passed.
  • the associated cross-section is then executed and the separated sheet layer 1 has left the cross-section cutter 40, this is held in the idle position.
  • control device 65 that can be programmed or adjusted with respect to the parameters explained is provided, which is connected via separate signal lines to the detectors 17, 21, the processing devices 18, 39, 40 and the conveyor 47 or 48.
  • the conveyor 23 serves to pull off the separated sheet layers 1 from the cross cutters 39, 40 and can grasp the front end of the respective sheet layer 1 before, during or immediately after the separating cut by the cross cutter 39 or when the material web 2 or the sheet layer 1 is still gripped by the feed dog 48 or passes through the working gap of the cross cutter 40.
  • the feed dog 23 is expediently driven synchronously with the feed dog 47 or in such a way that its transport running speed is slightly greater than that of the material web 2.
  • the conveyor 23 has two sheet layers 1, essentially slip-free, between driven jams, such as endlessly rotating conveyor belts.
  • One of the runners especially the one on the same side the working plane as the counter knife 46 lies further in the direction of the working gap of the cross cutter 40, namely approximately up to the associated strip holder, so that its rear end is only opposite the circumference of the knife shaft 45 with a gap distance.
  • This runner can be assigned a device similar to the suction device 49 with which the sheet layer is sucked against the runner or the conveyor belts forming it, so that the sheet layer 1 can be gripped and transported essentially without slippage even before the transport gap of the transporter 23, which is limited on both sides, is reached can.
  • the width of the funnel-shaped narrow entrance of the transport gap can be adjusted so that the clamping force with which the transport runners attack the sheet layers 1 can be changed.
  • the force with which the transporter 23 pulls the sheet layers 1 out of the unit 22 can also be changed because the sheet position 1 can have more or less slip with respect to the feed dog 23 with a correspondingly low clamping force.
  • the transport runners of the conveyor 23 are on a movable carrier, e.g. a carriage 67, which can be moved without disassembling the runner in the running direction 11 away from the cross cutter 40 in such a way that its tools for changing knives or the like are easily accessible from the associated side or away from the cross cutter 39.
  • a movable carrier e.g. a carriage 67
  • the upper transport runner of the transporter 23 extends further in the running direction 11 beyond the ejector 25 than the lower transport runner.
  • the ejector 25 has a convertible diverter 68 with which the sheet layers 1 either the subsequent processing devices or can be fed to a downward branching discharge track 69, in which the sheet layers are first conveyed by the correspondingly deflected lower transport runner of the conveyor 23 after being deflected by the discharge switch 68.
  • a further, convertible sorter switch 70 is provided in the discharge track 69, through which the discharged sheet layers are fed either to the deposit 26 or to the shredding unit of the document shredder 27.
  • the respective overlapping device 32 or 32a Simultaneously with the changeover of the discharge switch 68 to discharge, the respective overlapping device 32 or 32a, which is in the associated operation, is stopped by the fact that its drive connection is interrupted by disengaging a clutch. As a result, despite the removal of individual sheet layers, the subsequent sheet layer can be re-aligned in the layer stream in such a way that the gap distances provided for the overlap are retained. As soon as the discharge switch 68 is reset, the overlapping device is put into operation again by coupling.
  • the device 28 also has transport runners in the form of endless circulating conveyor belts or the like, which delimit a transport gap for the sheet layers 1.
  • the rear end of this transport gap can be adjusted relative to the front end of the transport gap of the transporter 23 approximately in and against the running direction 11 in that the associated bearings or deflections are provided on an adjustable transport carriage 71.
  • the difference in the running speed between the conveyor 23 and the device 28, which is required to achieve the desired correction of the distance gap between successive sheet layers 1, is made manually and / or automatically controllable control gear set, for example, so that the gap width is about 20 mm.
  • a sheet of material 2 to be processed to register-accurate sheet layers 1 is drawn off by the conveyor 47 from the memory 14 at a uniform speed, scanned for errors with one or more detectors 16 and then after scanning the marks 7 with the detector 17 with the marks accurate to the register 8 provided.
  • the material web is then cleaned by brushing and / or suction and again scanned for its cleaning state, after which edge strips are cut off on both longitudinal sides with the edge cutter 20 in order to ensure cleanly cut or damage-free longitudinal edges 3, 4.
  • the material web 2 passes through the transporter 47, which together with the transporter 48 feeds it to the cross cutters 39, 40 and influences the control of the work of these cross cutters 39, 40.
  • the waste strip 9 is separated off with the cross cutter 40 in such a way that the product produced thereby the front cutting edge 5 lies precisely in register or position with the associated mark 7.
  • the associated working gap like that of cross cutter 39, is open for the further passage of the material web.
  • the cross cutter 39 also carries out the corresponding cut in the further pass, after which the sheet layer 1 is then only transported by the conveyors 48, 23 until it is the carrier 48 and has subsequently left the working gap of the cross cutter 40. Up to this moment, the sheet ply 1 runs essentially free of space from the front end of the material web 2 separated from it.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Making Paper Articles (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Medicines Containing Plant Substances (AREA)

Claims (10)

  1. Dispositif de traitement pour la transformation d'un matériau brut (2) constitué en particulier de matière à flexibilité molle du type papier, par exemple une nappe continue en sections découpées ou feuilles (1) qui présentent des surfaces ainsi que des arêtes (3, 4, 5, 6) et qui doivent être traitées en formant au moins deux zones transversales (5, 6), une première et une deuxième, situées transversalement par rapport à une arête longitudinale (3, 4), et à une certaine distance réciproque, le dispositif comportant un socle, au moins un dispositif de traitement (39, 40) pour traiter la feuille respective (1) dans au moins deux plans (41, 42) situés à une certaine distance utile l'un de l'autre sur les zones transversales de la feuille, ainsi que comportant au moins une voie de transport et un transporteur (47, 48, 23) déterminant un plan de travail (12) pour le transport du matériau (2), par rapport aux plans de travail (41, 42), dans au moins une direction d'avance (11), tandis que pour le traitement correct des deux zones transversales (5, 6) de la feuille respective (1), sont prévus au moins un repère dimensionnel, des moyens de commande pour les dispositifs de traitement (39, 40) et une sécurité de positionnement pour la feuille (1), caractérisé en ce que la distance utile entre au moins deux des plans (41, 42) se situe dans l'ordre de grandeur de la distance entre les zones transversales (5, 6) de la feuille, et que la position de traitement de la première zone dimensionnelle (5) de la feuille est prévue pour servir de repère dimensionnel à la deuxième zone transversale (6).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'au moins deux dispositifs de traitement séparés (39, 40) sont prévus, qu'en particulier les dispositifs de traitement (39, 40) sont disposés de manière successive dans la direction de l'avance correspondante et peuvent être commandés en fonction l'un de l'autre, et que de préférence les plans (41, 42) d'au moins deux dispositifs (39, 40) sont prévus de manière à se succéder immédiatement avec une distance réciproque inférieure à la distance entre deux zones transversales (5, 6) de la feuille, et/ou que pour définir la distance entre les zones transversales de la feuille un dispositif de traitement, par exemple un dispositif (39) actif, est commandé en fonction d'un autre dispositif de traitement (40) et que, en particulier pour le traitement des deux zones transversales de la feuille en vue de créer un registre, les moyens de transport sont prévus pour former un vide de dimensions variables situé entre deux feuilles voisines (1) par la séparation d'une bande de rebut (9) plus courte que la feuille (1).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que, pour assurer le positionnement, est prévu au moins un support (47, 48) assurant le maintien du matériau (2), pour ce qui concerne ses dimensions, par rapport à au moins un dispositif de traitement (39, 40), qu'en particulier un support de nappe (47, 49), est prévu le dispositif de traitement (39, 40) respectif, ou bien se trouve à l'intérieur du passage pratiquement continu et sensiblement sans patinage du transporteur (47, 48), et que de préférence en vue du traitement des deux zones transversales de la feuille respective (1) pendant leur passage, un dispositif de traitement successif (40) est en prise active avec la zone transversale correspondante immédiatement avant un dispositif de traitement (39) situé avant, à savoir que la nappe de matériau (2) est supportée lors des deux interventions actives par le même support (47, 48), et/ou qu'à la feuille (1) respective est associé, pour servir de repère, un marquage (7) qui avance avec le matériau, et que pour la détection de ce marquage ainsi que pour la commande d'au moins un dispositif de traitement (18, 39, 40) ou d'au moins un transporteur (47, 48), est prévu au moins une cellule sensible (21), qu'en particulier une cellule sensible (21) commande un dispositif de traitement (40) en fonction de l'acheminement du matériau (2) à travers un transporteur (47, 48), et que de préférence le traitement effectué par ce dispositif (40) constitue un repère pour le traitement à effectuer par un autre dispositif de traitement (39).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'entre des dispositifs de traitement voisins (39, 40) est prévu au moins un support (48) assurant le positionnement du matériau (2), qu'en particulier un support (48) est réalisé de manière à assurer respectivement le positionnement d'une seule feuille (1) pendant son traitement par au moins un dispositif (39, 40), c'est-à-dire sous la forme d'un transporteur (48) assurant le positionnement du matériau (2) pendant son passage pratiquement continu et sensiblement sans patinage, et que de préférence un support de positionnement (48) présente une sécurité fluidique (49) du matériau, et/ou qu'au moins un dispositif de traitement (39, 40) présente deux outils de traitement (43, 44 et 45, 46) disposés des deux côtés du matériau (2), se faisant face mutuellement et réalisés de manière significativement différente, qu'en particulier des dispositifs de traitement voisins (39, 40) se chevauchent pratiquement mutuellement en considération du plan de travail (12) sensiblement commun, et que de préférence au moins un dispositif de traitement (39, 40) présente un outil (44, 46) pratiquement fixe pendant le travail ou des outils mutuellement correspondants (43, 45 et 44, 46) de dispositifs de traitement voisins (39, 40) sur respectivement une autre des deux faces du plan de travail (12) correspondant.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que pour empêcher au moins partiellement un traitement ou une opération analogue par un dispositif de traitement (39, 40) se déplacant en sa trajectoire, au moins un outil (44, 46) dudit dispositif (39, 40) est mobile transversalement par rapport au plan de travail correspondant (12) entre une position de travail et une position de point mort en fonction du passage du matériau, qu'en particulier un outil (44, 46) pratiquement fixe pendant le traitement ou pendant la position de marche à vide, peut être rendu mobile et que de préférence un outil (44, 46) ne peut être rendu mobile que sur une trajectoire qui correspond à l'épaisseur du matériau (2) augmenté d'une coque de sécurité qui est égale à environ 5 fois ladite épaisseur du matériau, et/ou qu'au moins un dispositif de traitement (39, 40) présente un outil comportant au moins un support de positionnement (54) destiné à assurer l'avance sensiblement sans patinage du matériau (2) pendant son traitement, qu'en particulier un support de positionnement (54) est prévu sur un outil (45) entraîné dans un mouvement de traitement, ou bien pour une zone transversale avant (9) du matériau (2), et que de préférence un support de positionnement (54) présente un moyen adhésif ou analogue agissant sur une seule face du matériau 2, pour assurer le positionnement du matériau (2).
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que pour la séparation complète de déchets à éliminer (9) du matériau (2) est prévu au moins un dispositif de nettoyage (56), qu'en particulier pour assurer le positionnement d'au moins un déchet (9) avant sa séparation est prévu un support de positionnement (54) mobile entre une position de réception et une position de remise, et que de préférence un dispositif de nettoyage (56) comprend un aspirateur, un éjecteur, un détacheur mécanique (57) ainsi qu'un puits de transport (55) pour le déchet (9) respectif, et ou que sont prévus des moyens pour la mise en place d'écarts entre des feuilles (1) successives, que ces moyens d'écartement sont prévus en particulier pour séparer une bande transversale intermédiaire (9) à éliminer entre les feuilles (1), ou sont constitués par un transporteur correcteur (28) qui accélère les feuilles (1) de manière à rendre les écartements pratiquement constants, et que de préférence en aval d'un dispositif de traitement (39, 40) est monté au moins un dispositif (33, 33a) destiné à former des piles de feuilles sensiblement régulières, les feuilles (1) pouvant être amenées de leur trajet à travers le dispositif de traitement (39, 40) vers leur position d'empilage dans une trajectoire continue sans interruption.
  7. Dispositif selon l'une de revendications précédentes, caractérisé en ce qu'au moins un dispositif (25) est prévu pour éliminer des feuilles (1) de la trajectoire de transport, qu'en particulier dans la trajectoire de transport est disposé un aiguillage d'expulsion commun (68) pour des feuilles (1) destinées à un contrôle, devant être mises au rebut ou analogues, et que de préférence en aval de l'aiguillage (68) est montée un aiguillage de tri (70) destiné à transférer optionnellement les feuilles (1) éliminées vers des convoyeurs séparés, par exemple un destructeur de documents (27), et/ou qu'au moins un compteur (24, 29, 31, 31a) est prévu pour le comptage des feuilles (1), qu'en particulier un compteur respectivement des feuilles (1) séparées est monté en aval d'un dispositif de traitement (40), d'un dispositif d'élimination (25) ou d'un aiguillage distributeur (30) destiné à distribuer les feuilles (1) en direction de plans de transport séparés, et que de préférence deux compteurs disposés successivement en direction du transport (11) sont en liaison active, au moyen d'un calculateur à comparaison, avec un dispositif de signalisation en vue de l'émission de signaux de commande.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'en aval d'un accumulateur (14) de la nappe de matériau (2) sont montés le long d'une voie de transport et se succédant sensiblement : un couteau longitudinal (20), un dispositif de saisie (21) pour saisir les caractéristiques (7) des feuilles, un transporteur (47) saisissant l'avance de la nappe de matériau (2) en fonction de ces dimensions longitudinales, deux couteaux transversaux (39, 40) à fonctionnement interdépendant compte tenu des dimensions pour la réalisation des arêtes transversales avant et arrière (5, 6) conforme aux dimensions et respectant le format des registres, de la feuille respective (1), au moins une écluse (25) pour l'élimination de feuilles se trouvant sur le convoyeur en fonction d'un dispositif d'analyse saisissant l'avance et le traitement de la nappe de matériau (2), et au moins un dispositif (32, 33) pour l'empilage des feuilles (1), qu'en particulier les feuilles (1) sont maintenues en mouvement de manière pratiquement ininterrompue entre les couteaux transversaux (39, 40) et le dispositif d'empilage (32, 33), et que de préférence en aval de l'écluse (25) est disposé un aiguillage distributeur (30) pour amener optionnellement les feuilles vers des dispositifs d'empilage séparés (32, 33 ; 32a, 33a).
  9. Procédé pour la transformation d'un matériau de départ (2) en feuilles (1) comportant respectivement deux zones, une première et une deuxième, transversales (5, 6), situées à une distance réciproque prédéterminée, transformation s'effectuant en particulier au moyen du dispositif (13) conforme à l'une des revendications 1 à 8, lors de laquelle le matériau (2) de dimensions supérieures à la feuille (1) est positionné en une direction longitudinale (11) par rapport à au moins un outil (43 à 46), tandis que les zones transversales sont traitées, sensiblement sans interruption du positionnement, de manière consécutive transversalement à la direction longitudinale (11) au moyen de l'outil respectif à une distance réciproque prédéterminée, de telle manière que la première zone transversale (5) est traitée d'abord, et ensuite, avec la distance intermédiaire, la deuxième zone transversale (6), un outil (43) étant piloté de manière à se régler sur la distance prédéterminée et est amené, ainsi ajusté, en prise active avec la deuxième zone transversale (6), caractérisé en ce que la position de traitement de la première zone transversale (5) est saisie, et que, sur la base de cette saisie, l'outil (43) est piloté pendant le positionnement du matériau de telle manière qu'il traite la deuxième zone transversale (6) en respectant avec précision le positionnement dans l'écart intermédiaire.
  10. Procédé selon la revendication 9, caractérisé en ce que pendant le trajet continu sensiblement parallèle à la direction longitudinale (11) du matériau (2) amené pour former la nappe, s'effectue tout d'abord, en vue de la formation de la première arête transversale avant (5) de la feuille (1), la séparation d'une bande transversale de déchets (9) éliminée de l'extrémité avant de la nappe, et qu'immédiatement suite à cela, après ajustage réciproque, par rapport aux longueurs de l'outil (43) et de la nappe, s'effectue la découpe d'une deuxième arête transversale (6), ce qui a pour effet de séparer la feuille (1) de la nappe de matériau.
EP94104936A 1993-04-24 1994-03-29 Dispositif et procédé pour couper un matériel en feuilles Expired - Lifetime EP0622320B1 (fr)

Applications Claiming Priority (2)

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DE4313452 1993-04-24
DE4313452A DE4313452A1 (de) 1993-04-24 1993-04-24 Verarbeitungsvorrichtung und Verfahren zur Bearbeitung von Material zu Blattlagen

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EP0622320B1 true EP0622320B1 (fr) 1997-09-03

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DE19653927C1 (de) * 1996-10-21 1998-04-23 Koenig & Bauer Albert Ag Bogenbearbeitungsmaschine
DE59709996D1 (de) * 1997-12-24 2003-06-05 Kba Giori Sa Bogenbearbeitungsmaschine
DE19907357A1 (de) * 1999-02-20 2000-08-24 Bielomatik Leuze & Co Querbearbeiter für Lagenmaterial, insbesondere Querschneider für Papier
DE10162367B4 (de) * 2001-12-18 2005-03-10 Baumann Maschb Solms Gmbh & Co Vorrichtung und Verfahren zum Lagern von Papierstapeln
DE202004003304U1 (de) * 2004-03-01 2004-05-06 Ehret, Bernhard, Dipl.-Ing. Querschneider-Vorrichtung für bedruckte Flachmaterialbahnen
ITMI20050809A1 (it) * 2005-05-04 2006-11-05 Cem Spa Dispositivo e procedimento di taglio di moduli continui
EP1837137B1 (fr) 2006-03-22 2010-06-02 Hunkeler AG Dispositif de coupe transversale ainsi que procédé de mise en oeuvre d'un tel dispositif
ITMI20080245A1 (it) * 2008-02-15 2009-08-16 Tocchio S R L Dispositivo di taglio trasversale di materiali in nastro
CN104044185A (zh) * 2014-05-25 2014-09-17 钟国麟 一种切割和钻孔的设备
ES2951025T3 (es) * 2016-09-14 2023-10-17 Yoshino Gypsum Co Dispositivo de corte y aparato de fabricación que comprende dicho dispositivo de corte
DE102017207425A1 (de) * 2017-05-03 2018-11-08 Mahle International Gmbh Fertigungsmaschine und Verfahren zum Herstellen und Schneiden eines flachen metallischen Endloselements

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DE4313452A1 (de) 1994-10-27
ES2109535T3 (es) 1998-01-16
EP0622320A1 (fr) 1994-11-02
DE59403921D1 (de) 1997-10-09

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