EP0236275B2 - Dispositif et procédé pour découper des pièces rectangulaires d'une bande - Google Patents

Dispositif et procédé pour découper des pièces rectangulaires d'une bande Download PDF

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Publication number
EP0236275B2
EP0236275B2 EP19870810120 EP87810120A EP0236275B2 EP 0236275 B2 EP0236275 B2 EP 0236275B2 EP 19870810120 EP19870810120 EP 19870810120 EP 87810120 A EP87810120 A EP 87810120A EP 0236275 B2 EP0236275 B2 EP 0236275B2
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EP
European Patent Office
Prior art keywords
longitudinal
web
cutting
cross
rocker
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
EP19870810120
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German (de)
English (en)
Other versions
EP0236275B1 (fr
EP0236275A3 (en
EP0236275A2 (fr
Inventor
Otto Bay
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O BAY AG
Original Assignee
O BAY AG
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Filing date
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Application filed by O BAY AG filed Critical O BAY AG
Priority to AT87810120T priority Critical patent/ATE68394T1/de
Publication of EP0236275A2 publication Critical patent/EP0236275A2/fr
Publication of EP0236275A3 publication Critical patent/EP0236275A3/de
Publication of EP0236275B1 publication Critical patent/EP0236275B1/fr
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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material
    • G03D15/04—Cutting; Splicing
    • G03D15/043—Cutting or splicing of filmstrips
    • G03D15/046—Automatic 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
    • 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
    • B26D5/20—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
    • B26D5/34—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 scanning being effected by a photosensitive device
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/10—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
    • B26D1/105—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D2011/005—Combinations of several similar cutting apparatus in combination with different kind of cutters, e.g. two serial slitters in combination with a transversal cutter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2022—Initiated by means responsive to product or work
    • Y10T83/2024—Responsive to work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2083—Deflecting guide
    • Y10T83/2085—Positionable gate in product flow path
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4699—Combined with other type cutter
    • Y10T83/4702—With slitter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/541—Actuation of tool controlled in response to work-sensing means
    • Y10T83/543—Sensing means responsive to work indicium or irregularity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6476—Including means to move work from one tool station to another
    • Y10T83/6489—Slitter station
    • Y10T83/6491—And transverse cutter station
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6584—Cut made parallel to direction of and during work movement
    • Y10T83/6592—Interrelated work-conveying and tool-moving means
    • Y10T83/6598—Tool co-axial with work-conveying means

Definitions

  • the invention relates to a method for cutting different rectangular formats from a paper or film web, which is provided for controlling longitudinal and cross sections at its edge with each format assigned codes, the longitudinal cuts by optional use of at least one of several across the width longitudinal cutting organs distributed across the web.
  • EP-A-0085773 is a method and an apparatus for cutting photoset films or the like.
  • Known, longitudinal cuts and then cross-sections are initially made in the film tape in the direction of flow.
  • the longitudinal and cross cutters are controlled according to the positions of the intended cuts by markings on the film tape by control elements. Since it is a continuous belt in which only cuts, but not individual formats, are cut out and separated from one another, there is no waste.
  • DE-C 918 609 discloses a method and a device for producing the set for the reproduction of typographic works.
  • the film strip is first cut cross-wise, the control being carried out by cut marks.
  • the lateral strips containing the cut marks are separated with circular knives. After the cross-section there is no waste to be removed and the slitters only serve to cut off the side edges.
  • DE-A 2141950 shows a method and device for marking cutting points on tapes with photographic copies by marks attached to the edge.
  • the cross sections are made in a predetermined assignment of the cut marks to the position of the image field. There is no waste and there are no longitudinal cuts.
  • the object to be achieved by the invention is to provide a method and a device to or the like from a relatively long paper or film web corresponding to that of a plotter. Cut out the output drawings different rectangular formats that are not lined up on the web without gaps, whereby longitudinal and cross-sections are carried out mechanically, the cross-section waste strips are removed immediately and the longitudinal-section waste generated after longitudinal cuts is also removed, so that the completely trimmed rectangular formats then directly Further processing e.g. can be fed to a folding machine.
  • the method according to the invention for solving this problem is characterized in that the control of a cross-cutting unit for cutting off a section of the desired length running transversely to the longitudinal direction of the paper or film web is initially effected by said coding, and the control of a first switch is effected by a further coding which causes the cross-section waste strip to be diverted and these cut-off sections subsequently effect the control of longitudinal cutters by means of further said codings, by means of which the cut-off section is trimmed by longitudinal cuts in the longitudinal direction of the web, and a further coding effects the control of two switches which deflect the cut-off longitudinal section causes.
  • drawings made by a plotter for example, which can have different formats in an arbitrary sequence, can be cut to size from a continuous paper or film web with the avoidance of manual work, and the waste is removed after the respective cutting processes, so that in the end only those cut out Rectangle- Formats available.
  • the device is used to cut out different rectangular drawing formats from an "endless" paper web 1 by means of longitudinal and cross-sections. Such drawings or the like. are continuously or the like by a plotter. drawn on paper web 1.
  • the individual different drawing formats are incurred in random order, as is indicated in FIG. 1 by the standard drawing formats A3, A2, A0, A4. So that the drawing formats are cut out of the correct size from the paper web 1, cross sections 22 on the one hand and longitudinal cuts 24a, 24b, 24c on the other hand are to be made.
  • the control of the cutting device for the implementation of these longitudinal and cross-sections is carried out by codes 20 which are attached to the edge of the paper web 1 by the plotter for each format.
  • FIG. 2 The device with which these longitudinal and cross sections can be carried out is shown schematically in FIG. 2.
  • the paper web 1 coming from the plotter is inserted into an insertion slot 2 and gripped by two opposing pressure rollers 3, 4.
  • the paper web 1 is guided for transport in the direction of arrow D in a horizontal channel 6 and passes a sensor 5 which reads the codes 20 attached to the edge of the web 1 by the plotter.
  • an electrical clock generator 21 is connected, which outputs signals to a control device, depending on the rotational movement of these pressure rollers 7, 8 and thus in accordance with the feed movement of the paper web 1.
  • the paper web 1 then arrives at a cross cutter 9, which is formed from a knife shaft 10 with a cross-cutting knife 11 rigidly attached to the water and a counter knife 12 rigidly held on a stationary holder 18.
  • the knife shaft 10 rotates in the direction of arrow B as soon as a corresponding control command from a control device is issued. If a cross section 22 is to be carried out, a clutch which is known per se and can be engaged and disengaged is engaged.
  • This cross cutter 9 extends over the entire width of the paper web 1 and thus, when the knife shaft 10 rotates, it carries out the cross sections 22 shown in FIG. 1.
  • a switch 13 Immediately adjacent to this cross cutter 9 is a switch 13 with which that the strip-shaped intermediate pieces 23 cut off from the cross cutter 9 - the wastes - are not fed to the subsequent longitudinal cutting devices but are discharged in the direction of the arrow K.
  • An electromagnet 43 with a tie rod 45 is provided for pivoting the cross-sectionally wedge-shaped switch 13, which extends over the entire width of the paper web 1. This interacts with a connecting piece 47 which is pivotable about a shaft 51.
  • the tie rod 45 moves downward against the force of a return spring 53, as a result of which the pointed nose of the switch 13 moves upward and thereby deflects the intermediate piece 23, which is separated from the cross cutter 9, downward in the direction of the arrow K.
  • the cut pieces which contain the drawings, then arrive at longitudinal cutting units 26, which are described in more detail below in connection with FIGS. 3 to 5. There are several of these optional slitting units 26 distributed over the width of the web 1.
  • these longitudinal cutting devices 26 each contain an upper circular knife 36 and a lower circular knife 56, which interact with one another in a cutting gap 49.
  • the rectangular format trimmed on all four sides then passes between further pressure rollers 14, 15, and a second set of switches, which causes the resulting waste 25 to be deflected and thus provides a drawing sheet tailored to the correct format, which is then fed, for example, to a folding device can.
  • the cross cutter 9 is driven by a drive belt 19, which is preferably designed as a toothed belt and is connected to a drive motor (not shown in FIG. 2).
  • the drive belt 19 is also guided over the shaft 60 of the cutting knife, of which the rotary movement via a another toothed belt 16 is transferred to the pressure rollers 4, 8 and 15.
  • the various shafts are supported on both ends of the side walls.
  • FIGS. 3-5 The design and mode of operation of an individual longitudinal cutting unit 26 according to FIGS. 3-5 are explained in more detail below.
  • Several such longitudinal cutting units 26 are distributed over the width of the paper web 1. The distances are preferably chosen such that DIN standard formats are cut out. These units sit on a transverse rail 28 at such mutual distances that longitudinal cuts 24a-c can be carried out at the intended locations.
  • An electromagnet 27 is fastened by screws to a cross rail 28 which engage in a longitudinal groove 40.
  • these longitudinal cutting units 26 can be moved along the cross rail 28 as desired and locked in the desired position.
  • a plunger 29 immersed in the electromagnet 27 is moved in the direction of the arrow C when the current is switched on.
  • the resetting is carried out by a spring 30 arranged at the other end of the coil, the pretensioning force of which can be adjusted by adjusting nuts 31.
  • the connection between the electromagnet 27 and a rocker 33 is made by a Z-shaped holder 55.
  • the plunger 29 is articulated to a bolt 32 extending transversely thereto, which in turn is screwed to a rocker shaft 34 and projects radially from this rocker shaft 34 is carried by a U-shaped holder 39 and serves to pivotally accommodate the rocker 33, which carries an upper circular knife 36 and support rollers 38 arranged on both sides thereof.
  • the support rollers 38 and the circular knife 36 are - according to FIG. 5 - via ball bearings 50 from a shaft 41 rotatably supported.
  • the shaft 41 is held by screws 52, which each penetrate a support bracket 37 on both sides.
  • the other end of this support bracket 37 is rotatably attached to a sleeve 42 which can rotate relative to the rocker axis 34.
  • the rocker 33 is pressed upwards by a laterally attached wire spring 35. Furthermore, a helical spring 44 is arranged in an interior of the sleeve 42 surrounding the rocker axis 34 and causes a force in on the sleeve 42 and thus on the entire rocker 33 together with the circular knife 36 Direction of arrow E (Fig.4) is exercised. As a result, a pin 46 projecting radially at one end from the rocker axis 34 comes to bear against a cam disk 48 which is laterally attached to the holder 39.
  • the slitting units used are controlled by the codes 20 applied by the plotter to the edge of the paper web 1.
  • These codes 20 are preferably designed as bar or bar codes known per se and are read by the sensor 5 and converted into corresponding control signals in the control unit.
  • the codes 20 thus effect both control of the cross cutter 9 and the selection of at least one longitudinal cutting unit 26. Instead of two codes 20 assigned to each drawing format at its beginning and end, only a single code containing all the necessary information could be provided.
  • the codings 20 present on the sheet edge contain black and white lines, fields or bars at uniform intervals, as can be seen from FIG. 6. These fields are scanned by the sensor 5 during the transport movement and the corresponding signals are fed to the control device.
  • the first field 29 is always black and causes the clutch for the cross cutter 9 to be switched on, so that a first cut is made which extends over the entire width of the web 1.
  • the next field 30 of the coding is assigned to the first switch 13. If this field 30 is white, the electromagnet 43 is not energized and this switch 13 remains in the rest position, as shown in FIG. 1, so that a section transported in the direction of arrow D is fed to the longitudinal cutters 26.
  • this field 30 is made black, this causes the electromagnet 43 to be excited via the control device and thereby the intermediate piece 23 is deflected as waste downwards in the direction of the arrow K and is guided into a container.
  • the directly adjoining fields 29, 30 are assigned to the individual longitudinal cutters 26, a total of seven possible control commands for seven longitudinal cutters 26 being present. However, any other number of such fields or longitudinal cutters 26 is also possible.
  • the first dark field 29 assigned to the cross cutter is in a coincident position with the front edge 22 of the piece to be cut.
  • the cut at the trailing edge is made in that a coding in the form of a black field 29 is present at the end of the sheet.
  • the leading edge 22 of the next sheet is produced at a short distance, for example approximately 5-6 mm, by executing a next cross section 22. Subsequently, the aforementioned coding 20 is again applied on the edge, as can be seen in FIG. 7.
  • the width of a coding field 29 or 30 - measured in the longitudinal direction of the web - is preferably dimensioned with approximately 1.8 mm, so that a total length of the bar coding of 16.2 mm is produced with a total of nine fields.
  • the second switches 62 arranged downstream of the slitter 26 with respect to the direction of movement D of the paper web 1 serve to discharge the waste, so that only the cut-out rectangular formats 65 remain with the drawings in order to avoid sorting out the waste by hand.
  • the second switches 62 arranged downstream of the longitudinal cutters 26 can each be pivoted about a fixed, horizontal axis 64 in the form of a switch set.
  • a switch 62 is located spatially between two adjacent longitudinal cutters 26, which can be pivoted independently of one another.
  • the pivoting movement of each switch 62 is brought about by an electromagnet 66 arranged inside a profile body 71.
  • the plunger 68 of the electromagnet 66 bears against a tab 70 rigidly connected to the axle 64 and is articulated to the latter via a cross pin 72.
  • the foot of the electromagnet 66 opposite the plunger 68 is supported against a tab 74.
  • the foot of the electromagnet 66 presses the switch 62 upwards into the position shown in broken lines.
  • the wedge-shaped nose 78 protrudes into the horizontal path of movement of the paper web 1 and causes the waste 25 to be deflected into the channel F.
  • a tension spring 82 ensures the return of the switch 62 to that shown in full lines, inactive location.
  • switches 62 could also be pivoted by direct mechanical coupling with the pivotable cutting knives 36.
  • the electromagnets 66 of the second set of switches sit here on a common continuous, stationary, horizontal profile rail 67 which is rigidly fastened in the machine frame. With the switch 62 two tabs 73 are rigidly connected and are penetrated by the rigid, horizontal axis 64 with little play, so that each switch 62 can be pivoted about this axis 64.
  • the plunger 68 of the electromagnet 66 engages with a pin 75 below the shaft 64 in an articulated manner in a slot of the tabs 73.
  • the electromagnet 66 is designed to be pulling, i.e. when the current is switched on, the plunger 68 moves in the direction of the arrow G. As a result, the nose 78 is pivoted into the position shown in full lines against the direction of the arrow N.
  • a return spring 82 causes the switch 62 to remain open when the electromagnet 66 is de-energized, i.e. occupies the gifted position shown in broken lines in Fig. 9. In this swiveled-up position, the waste 25 is directed downward in the direction of the arrow F and arrives in a waste bin.
  • the switch 62 assumes its position shown in full lines in FIG. 9 and a supplied rectangular drawing sheet which has been cut on all sides reaches a table 79 and can subsequently be further processed, for example fed to a folding machine.
  • the electromagnets 66 are preferably connected in parallel with the electromagnet 27 of the respective slitter 26, so that additional control elements are omitted, since a switch 62 must be assigned to each of the pivoted-in rockers 33.
  • Fig. 10 are shown schematically and as an example, the slitter 26a, 26b, 26c, 26d, 26e, 26f, 26g. These correspond to the longitudinal cutters in FIGS. 3-5, in which the upper circular knife 36 can optionally be brought into a lowered position by actuating the associated electromagnet 27 if a longitudinal cutting process is to take place.
  • the longitudinal cutters 26a and 26f and 26g are in their lowered, active cutting position, while the others assume a non-cutting position.
  • the drawing format 65 to be cut out here is to have the width B, waste strips 86 and 25 are separated from the paper web 1 on the left and right and are diverted through the swung-out switches 62 in the direction of the arrow F. As a result, the drawing format 65, which is trimmed on all four sides, is placed on the storage table 79.
  • the width is determined by one of the other longitudinal cutters 26, the correspondingly wider or narrower drop being derived by other switches 62 which are swung up.
  • the actuation of the second switches 68 can thus take place simultaneously and parallel to the longitudinal cutters 26 brought into the cutting position, so that no additional codes or control means are required for the actuation of these switches 62.
  • this outermost switch can be designed to be stationary and always be in the swung-up position.
  • the slitter 26 is designed to be displaceable in the horizontal direction, drawing formats of any desired width can be cut out, but this is usually limited to standard formats.
  • foils made of rigid plastic can also be used.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Cutting Processes (AREA)
  • Details Of Cutting Devices (AREA)
  • Handling Of Sheets (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (11)

1. Procédé de coupe de différents formats rectangulaires à partir d'une feuille continue de papier ou d'un autre matériau (1), qui, pour commander des coupes longitudinales (24a-c) et transversales (22) est pourvue sur son bord de codages (20), affectés à chaque format, les coupes longitudinales étant réalisées par l'utilisation, au choix, d'au moins un, parmi plusieurs, organes de coupe longitudinale (36, 56) disposés d'une manière répartie sur toute la largeur de la feuille continue (1), caractérisé en ce que, à partir de la feuille continue de papier ou d'un autre matériau (1), on provoque d'abord, par un codage (20) tel que ci-dessus, la commande d'une unité de coupe transversale (9) dans le but de séparer une pièce partielle ayant la longueur voulue, courant perpendiculairement au sens longitudinal de la feuille continue ; on provoque, grâce à un autre codage (29) la commande d'un premier aiguillage (13), qui réalise le renvoi des chutes transversales (23), ces pièces partielles, séparées, assurant ensuite, grâce à d'autres codages tels que ci-dessus, la commande de massicots à coupe longitudinale (26), par lesquels la pièce partielle séparée est, par des opérations de coupe longitudinale (24a-c) découpée dans le sens longitudinal de la feuille continue, et un autre codage provoque la commande de deuxièmes aiguillages (62), qui provoquent le renvoi des chutes longitudinales.
2. Procédé selon la revendication 1, caractérisé en ce que les codages (20) sont constitués de codages à bâtonnets ou à barres.
3. Dispositif destiné à la mise en oeuvre du procédé selon la revendication 1, pour couper des formats rectangulaires différents à partir d'une feuille continue de papier ou d'un autre matériau, comportant un massicot à coupe transversale (9) s'étendent sur toute la largeur de la feuille continue (1) et servant à réaliser des coupes transversales, des massicots à coupe longitudinale (26), disposés en étant répartis sur toute la largeur de la feuille continue (1) et servant à réaliser des coupes longitudinales (24e, 24b, 24c), massicots pouvant se déplacer au choix entre une position de coupe et une position de repos, un dispositif de commande comportant un capteur (5), lequel explore les codages (20) se trouvant sur la feuille continue (1), dispositif de commande qui provoque tant l'utilisation du massicot à coupe transversale (9) que le choix d'au moins un massicot à coupe longitudinale (26), tel qu'utilisé, caractérisé en ce que ne sont présents qu'un massicot à coupe transversale (9) et plusieurs massicots à coupe longitudinale (26), qui sont disposés en aval du massicot à coupe transversale (9) dans le sens du transport (D) de la feuille continue ; qu'un premier aiguillage (13) est disposé en aval du massicot à coupe transversale (9) - dans le sens de déplacement de la feuille continue D - et provoque l'élimination des chutes transversales (23), et un Jeu de deuxièmes aiguillages (62), mobiles les uns par rapport aux autres, disposé en aval des massicots à coupe longitudinale (26), pour assurer la séparation des chutes longitudinales d'avec les feuilles coupées au format ; et que, en plus des codages (20) destinés à la commande des massicots (26, 9) à coupe longitudinale et à coupe transversale, on a présents des codages (20) destinés à la commande des aiguilles (13, 26).
4. Dispositif selon la revendication 3, caractérisé en ce que chaque massicot à coupe longitudinale (26) contient une bascule (33), qui porte un couteau circulaire (36), bascule assurant le pivotement du couteau circulaire (36) jusqu'a une position de coupe, des organes de réglage mécaniques (34, 46, 48) étant présents, à l'aide desquels il est possible de réaliser un déplacement axial (E) de l'un des couteaux circulaires (36) de façon qu'il vienne s'appuyer contre le contre-couteau (56).
5. Dispositif selon la revendication 4, caractérisé en ce qu'un premier couteau circulaire (56) est fixé en rotation sur un arbre mené (60), que le deuxième couteau circulaire (36), s'appuyant sur la bascule (33) et comportant un axe de rotation parallèle, coopère avec un électro-aimant (27); que, quand la bascule (33) est en position de pivotement, les deux couteaux circulaires (36,56) se chevauchent pour former un jeu de coupe (49); et que les organes de réglage axial (46,48) se trouvent sur la bascule (33).
6. Dispositif selon la revendication 5, caractérisé en ce que, sur le côté du couteau circulaire (36) supérieur, qui s'appuie sur la bascule (33), se trouve un galet d'appui (38), destiné à coopérer avec au moins un contre-galet d'appui (54) sur l'arbre (60) du couteau circulaire inférieur (56); qu'est présent un bras (32), en liaison d'entraînement avec l'électro-aimant (27) et dépassant radialement d'un axe de bascule (34); et que l'axe de bascule (34) s'appuie contre une came (48) qui, après que le galet d'appui (38) s'est appuyé sur le contre-galet d'appui (54), assure un mouvement axial (E) de l'axe de bascule (34) et donc du couteau circulaire (36) logé sur la bascule (33).
7. Dispositif selon la revendication 6, caractérisé en ce qu'un premier ressort (35) tend à appuyer sur la bascule (33) pour la mettre en position de repos; qu'un deuxième ressort (44) appuie l'axe de bascule (34), pouvant se déplacer axialement, contre la came (48); que la came (48) est traversée par l'axe de bascule (34); et qu'une cheville (46), dépassant radialement de l'axe de bascule (34) et en liaison de coopération avec l'électro-aimant (27), s'appuie contre la came (48).
8. Dispositif selon l'une des revendications 5 à 7, caractérisé en ce que la commande des électro-aimants (66) d'au moins quelque-uns des deuxièmes aiguillages (62) est réalisée parallèlement aux électro-aimants (27) à l'aide desquels les massicots à coupe longitudinale (26) peuvent se déplacer pour arriver à leur position de coupe.
9. Dispositif selon la revendication 8, caractérisé en ce que sont présents plusieurs deuxièmes aiguillages (62), dont chacun est disposé entre et derrière les massicots à coupe longitudinale voisins (26), et que chacun de ces deuxièmes aiguillages (62) comporte un nez (78), pouvant être actionné par un électro-aimant (66), et qui peut être pivoté vers la trajectoire de la feuille continue (1) ou des chutes (25, 86).
10. Dispositif selon la revendication 9, caractérisé en ce que les deuxièmes aiguillages (62), disposés en aval des massicots à coupe longitudinale (26), sont ouverts quand les électro-aimants (66) ne sont pas excités, pour renvoyer les chutes (25) vers l'intérieur.
11. Dispositif selon l'une des revendications 3 à 10, caractérisé en ce que le capteur (5) est disposé sur la face inférieure de la feuille continue.
EP19870810120 1986-03-07 1987-03-03 Dispositif et procédé pour découper des pièces rectangulaires d'une bande Expired - Lifetime EP0236275B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87810120T ATE68394T1 (de) 1986-03-07 1987-03-03 Verfahren und vorrichtung zum schneiden unterschiedlicher rechteck-formate aus einer papier- oder folienbahn.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CH945/86 1986-03-07
CH94586 1986-03-07
CH188086 1986-05-07
CH1880/86 1986-05-07
CH3497/86 1986-09-01
CH349786 1986-09-01

Publications (4)

Publication Number Publication Date
EP0236275A2 EP0236275A2 (fr) 1987-09-09
EP0236275A3 EP0236275A3 (en) 1989-09-13
EP0236275B1 EP0236275B1 (fr) 1991-10-16
EP0236275B2 true EP0236275B2 (fr) 1994-09-21

Family

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EP19870810120 Expired - Lifetime EP0236275B2 (fr) 1986-03-07 1987-03-03 Dispositif et procédé pour découper des pièces rectangulaires d'une bande

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Country Link
US (1) US4784318A (fr)
EP (1) EP0236275B2 (fr)
CA (1) CA1268840A (fr)
DE (1) DE3773702D1 (fr)

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Also Published As

Publication number Publication date
CA1268840A (fr) 1990-05-08
EP0236275B1 (fr) 1991-10-16
EP0236275A3 (en) 1989-09-13
EP0236275A2 (fr) 1987-09-09
DE3773702D1 (de) 1991-11-21
US4784318A (en) 1988-11-15

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