WO2019238564A1 - Dispositif servant à séparer des feuilles et procédé permettant de faire fonctionner un tel dispositif - Google Patents

Dispositif servant à séparer des feuilles et procédé permettant de faire fonctionner un tel dispositif Download PDF

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Publication number
WO2019238564A1
WO2019238564A1 PCT/EP2019/064956 EP2019064956W WO2019238564A1 WO 2019238564 A1 WO2019238564 A1 WO 2019238564A1 EP 2019064956 W EP2019064956 W EP 2019064956W WO 2019238564 A1 WO2019238564 A1 WO 2019238564A1
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WO
WIPO (PCT)
Prior art keywords
wing
edge
conveying direction
conveying
plane
Prior art date
Application number
PCT/EP2019/064956
Other languages
German (de)
English (en)
Inventor
Jörg SCHEFFLER
Original Assignee
Scheffler Joerg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Scheffler Joerg filed Critical Scheffler Joerg
Publication of WO2019238564A1 publication Critical patent/WO2019238564A1/fr

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Classifications

    • 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
    • B26D7/1836—Means for removing cut-out material or waste by pulling out
    • 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
    • B26D2007/1809—Means for removing cut-out material or waste by stripping fingers

Definitions

  • the invention relates to a device for separating sheets conveyed in a conveying direction, each having an edge area and at least one inner area cut out from this edge area, according to the preamble of claim 1, and a method for operating such a device according to claim 15.
  • a subsequently arranged separating device can be matched to the same geometry.
  • the generic US Pat. No. 2,588,384 describes a device for separating sheets which is able to separate inner good parts from outer Schiecht parts in such a process.
  • a laser cutting device for producing sheets mostly paper sheets
  • the edge area mostly completely surrounds the at least one cut-out inner area.
  • each cut-out interior can have a different geometry. It is even possible to produce sheets in any order in which the cut-out inner area is the good part or in which the edge area is the good part. In a specific exemplary embodiment, this can mean that this device outputs a sheet in which the cut-out inner area is the good part, then one in which the edge area is the good part, then another in which the edge area is the Good part and then again one in which the interior is the good part, etc., in any order.
  • the geometry of the cut-out inner area or the cut-out inner area can also vary from sheet to sheet. The sheets are output on a first level in a conveying direction.
  • the present invention has as its object to provide a device for separating sheets which have an edge area and at least one cut-out inner area, which is capable of changing geometries and requirements even under the conditions described above to work reliably and without significant changeover times, ideally without changeover times.
  • This object is achieved by a device having the features of claim 1.
  • a method for operating such a device is specified in claim 15.
  • this device - hereinafter also referred to as the separating device - has a wing that has an end edge that is movable such that the end edge has a first end division on one side of the first plane and a second end position on the other side of the first Can occupy level and there is an adjusting means for adjusting the wing.
  • the end edge points in the direction of the supplied sheets.
  • a further conveying station is provided downstream of the wing in the conveying direction.
  • This preferably has first rollers and second rollers, between which the further conveyed areas of the sheets are conveyed.
  • the conveying station can define a second level parallel to the first level, it has proven to be advantageous that the second level is spaced from the first level and is in particular above the first level.
  • the end edge preferably extends exactly parallel to the first plane and perpendicularly or with a slight inclination to the conveying direction.
  • a skew angle to the conveying direction is preferably between 1 0 and 10 °, preferably between and 3 ° and 7 °.
  • Such a slight inclination can increase the reaction corridor of the wing, in particular at high conveying speeds, since the wing does not necessarily have to grip the entire paper edge during the movement of the wing. Especially with thin papers, the entire front edge of the sheet is nevertheless moved in the desired manner by the wing.
  • the wing and thus its end edge are moved from the actuating means from a first end position to the other End position moved after it has passed at least in sections from a front edge of a sheet being conveyed.
  • the wing is actuated in such a way that the area or areas of the arch, which ones are to be used further (i.e. the good parts), move essentially parallel to the conveying direction and the other or the others Area (s) (i.e. the bad parts) are deflected out of the conveying direction.
  • Area (s) i.e. the bad parts
  • the wing In principle, it would be possible for the wing to be moved in a translatory manner, in particular parallely to the surface normal of the first plane, but it is preferred that the wing has a pivot axis located downstream of the end edge in the conveying direction, which is preferably vertical or lighter Inclination (see above) extends to the conveying direction and parallel to the first level.
  • the first level is a horizontal level.
  • a flexible guide element in particular a flexible guide element, extending from the underside of the wing can be provided.
  • the further conveying station can have a suction and / or blowing unit.
  • the first rollers move axially of these rollers. have mutually spaced segments.
  • the segments of adjacent roles are offset from one another.
  • the actuating device is controlled exclusively by an external control unit that “knows” the exact position of the sheets being fed.
  • a sensor can additionally be provided for detecting the front edge of each conveyed sheet in the conveying direction.
  • the wing extends perpendicular to the conveying direction, preferably at least over the entire width of the sheets to be processed, it being further preferred that the wing extends over the entire width of the further conveying station.
  • the device can be arranged after an existing conveyor, in particular the conveyor belt of a laser cutting unit, as described in DE 10 2013 002 122 A1, or it can have its own conveyor, in particular a conveyor belt.
  • This conveying direction is (also) belonging to the separating device. So that the conveyed sheets cannot dodge, it is preferred that the conveying device additionally has a hold-down device.
  • FIG. 1 shows a schematic cross section through a conveyor belt which, in a first plane, bends in a conveying direction. device and a separating device arranged downstream of the conveyor belt for separating the conveyed sheets
  • FIG. 2 shows detail D from FIG. 1, a sensor being additionally shown,
  • FIG. 3 shows the one shown in FIG. 2, but without a sensor, the wing being in its first end position, namely its lower end position,
  • FIG. 4 the one shown in FIG. 3, the wing being in its second end position, namely its upper end position
  • FIG. 5a that shown in FIG. 1 in a state shortly before a sheet to be cut reaches the cutting device
  • FIG. 7a the one shown in FIG. 6a at an even later point in time during the separation process
  • FIG. 7b the one shown in FIG. 7a in a representation corresponding to FIG. 5b
  • FIG. 8a the one shown in FIG. 7a at a later point in time after the separation of the regions of the sheet has been completed
  • FIG. 8b that shown in FIG. 8a in one of FIG. 7b corresponds to the representation
  • FIGS. 9a to 12a another type of separation in the representations corresponding to FIGS. 5a to 8a
  • FIG. 9b to 12b the process shown in Figures 9a to 12a in the
  • Wing 10 extends a flexible guide element 19.
  • the device 5 according to the invention is arranged downstream of a conveyor designed as a conveyor belt 30.
  • the conveyor belt 30 has an upper side 32 on which sheets are conveyed in the conveying direction F.
  • a cutting device (not shown), in particular a laser cutting device, arranged upstream, at least some of the supplied sheets were processed in such a way that the processed sheets have at least one cut-out inner area and an edge area surrounding this inner area.
  • the edge area completely surrounds the at least one inner area, but this is not absolutely necessary, but it is necessary that the front end area of each arch is part of the edge area.
  • the upper side 32 of the conveyor belt 30 defines a first level E1 in which the sheets are conveyed. This first level extends horizontally.
  • a hold-down 34 designed as a roller, which is preferably not driven and rests on the upper side 32 of the conveyor belt 30.
  • a wing 10 of the separating device 5 After the hold-down device 34, that is to say in the region of the deflection roller of the conveyor belt 30, there is a wing 10 of the separating device 5.
  • This wing 10 has an end edge 12 which points counter to the conveying direction F. This means that the end edge 12 is the part of the wing 10 on which the delivered sheets meet first.
  • This end edge 12 extends parallel to the first plane E1 and perpendicularly or with a slight inclination, in particular between 3 ° and 7 °, to the conveying direction F.
  • the wing 10 also has a pivot axis S, which can be designed as a physical shaft, but does not have to , This pivot axis S is located essentially at the downstream end of the wing 10.
  • an adjusting means acting on the wing is provided, with the aid of which the wing 10 and thus its end edge 12 are in a first end position (lower end position) and can be brought into a second end position (upper end position).
  • This adjusting means 18 can be designed, for example, as an electromagnet or as a servo motor.
  • This actuating means 18 is controlled by a control device, not shown. This control device can be designed such that it receives information from the upstream cutting device or is integrated in it.
  • the end edge 12 is in the first end position below the first level E1 and in the second end position above the first level E1.
  • the first level E1 is a horizontally extending level.
  • the first level E1 is not a horizontal level is.
  • it is crucial that the end edge 12 is in one end position on one side of the first plane E1 and in the second end position on the other side.
  • the first level E1 is a horizontal level, so that the horizontally extending end edge 12 of the wing in one end position, namely the first end division, is below the level E1 and in the second end position above the first level E1.
  • a sensor 7 is also provided, which detects the front edge of a sheet being conveyed. This sensor 7 is only shown schematically in FIG. 2. If all position data of the sheets from the upstream cutting device are known, such a sensor 7 can also be dispensed with.
  • the wing does not touch the conveyor belt 30 even in its first (lower) end position, there is always a distance which is preferably at least one to five millimeters.
  • a further conveying station 20 with first rollers 22 (lower rollers) and second rollers 24 (upper rollers) is arranged downstream of the wing.
  • the first rollers 22 and the second rollers 24 define a second plane E2, which is located above the first plane E1 and extends parallel to it.
  • the end edge 12 of the wing 10 lies in the second end position 10 in this second plane
  • the further conveying station 20 has a suction and / or blowing unit in order to clean the areas conveyed through it. This is indicated schematically here by the blower housing 26.
  • the first rollers (lower rollers) 22 are each formed with a plurality of segments 22a spaced apart from one another in the axial direction of the rollers. The segments 22a of adjacent roles are offset from one another, so that there are gaps.
  • a further conveyor belt can be arranged downstream of the further conveying station 20, the conveying level of which can again correspond to the first level E1, for example.
  • the separation device just described is particularly intended to separate good parts from bad parts.
  • the good parts and the Schiecht parts can be both inner areas and marginal areas of conveyed sheets.
  • the separating device is operated in such a way that the good parts pass essentially in the conveying direction, so that they pass through the further conveying station 20.
  • the device could in principle also be operated the other way around, namely in such a way that the bad parts are conveyed by the further conveying station 20 and the good parts are directed out of the conveying direction. Having said this, it will now be described with reference to FIGS. 5a to 8b how the device works when inner areas 44 of a sheet 40 as good parts are essentially transported further in the conveying direction F and the edge area 42 of this sheet 40, which is then the bad part , is directed out of the conveying direction F.
  • Figures 5a and 5b show an initial state.
  • a sheet 40 is conveyed in the direction F on the upper side 32 of the conveyor belt 30.
  • This sheet 40 is generally one of a whole stream of sheets, but this is not shown.
  • the sheet 40 of this specific exemplary embodiment has an edge area 42 and six inner areas 44 cut out from this edge area 42.
  • the six inner regions 44 are six circles of the same type. Of course, this should only be understood as an example.
  • the inner areas 44 can have any shape.
  • the separation device 5 described above has the task of separating the edge region 42 from the inner regions 44, the inner regions 44 being the good parts here which are to be conveyed essentially in the conveying direction F.
  • the control device receives, for example from the upstream laser cutting device, the information that a sheet 40 now follows, in which the edge region 42 is the bad part.
  • the control device actuates the actuating means and this initially places the flights 10 in their upper end position, as is shown in FIG. 6a.
  • the wing 10 In this second end position (upper end position), the wing 10 remains until the front edge 45 of the sheet 40 has passed the end edge 12 of the wing 10, so that the front edge 45 of the sheet 40 is below the end edge 12. If the end edge 12 of the wing 10 extends slightly obliquely to the conveying direction F, it may be sufficient if only a portion of the front edge 45 of the sheet is below the end edge 12.
  • the actuating means 18 is activated and moves the wing 10 and its end edge 12 into its first end position, that is to say the end edge 12 of the wing 10 moves downward and thus also presses down the area of the sheet adjoining the front edge 45 of the sheet 40 (which is a part of its edge areas 42). Since the entire edge region 42 of the arch 40 is connected to this front end region, the entire edge region 42 of the arch 40 follows and is thus deflected downward, as can be seen in particular in FIGS. 7a and 8a.
  • FIGS. 9a to 12b show the opposite process: here the edge region 42 is the good part, which essentially continues in the conveying direction F. to be promoted while the inner areas 44 are ejected as bad parts down:
  • the wing 10 and thus its end edge 12 remain in the lower end position until at least a portion of the front edge 45 of the sheet 40 has passed the end edge 12 so that it is located above the end edge 12 ,
  • the actuating means 18 is now controlled in such a way that it folds the wing 10 up into its second end position, so that the end edge 12 is in its upper end position.
  • the edge region of the arch 40 adjoining the front edge 45 thus lies on the upper side 14 of the wing 10.
  • the wing 10 now remains in this second end position and thus guides the edge region 42 in the conveying direction F to the further conveying station 20.
  • the inner regions 44 follow this slight deflection of the edge region 42 not and therefore initially remain in the first level E1, that is to say below the end edge 12 of the wing 10, so that they stop the flights! 10 pass on its underside 16 and are deflected downwards (FIGS. 11a, 12a and 11b, 12b). So you can see that a separation of the inner and outer areas is possible in every constellation with simple means.
  • the expansion of the wing perpendicular to the conveying direction should at least correspond to the width of the sheets to be processed.
  • the wing preferably extends (as shown) over the entire width of the conveyor belt 30 and the further conveying station 20.
  • a flexible guide element 19 can extend from the underside 16 of the wing 12 in order to facilitate the downward movement of the bad parts and in particular to prevent them from getting caught (FIG. 13).
  • This flexible guide element 19 can be a plastic film, for example.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Abstract

L'invention concerne un dispositif servant à séparer des feuilles acheminées dans une direction de transport (F) et présentant chacune une zone de bord et au moins une zone intérieure découpée dans ladite zone de bord, les feuilles acheminées définissant un premier plan (E1). Le dispositif est muni d'une ailette (10) présentant un bord d'extrémité (12) qui est mobile de telle manière que le bord d'extrémité (12) présente une première position de fin de course d'un côté du premier plan (E1) et une seconde position de fin de course de l'autre côté du premier plan (E2), et un moyen de réglage permet de déplacer l'ailette (10). En aval de l'ailette (10) se trouve un poste suivant d'acheminement (20) qui poursuit l'acheminement des zones (42, 44) des feuilles (40) continuant d'être acheminées. Pour que le dispositif puisse poursuivre à la fois l'acheminement de la zone de bord et de la zone intérieure vers le poste d'acheminement suivant, le bord d'extrémité (12) de l'ailette forme l'extrémité de l'ailette (10) en amont par rapport à la direction de transport (F) (fig. 2).
PCT/EP2019/064956 2018-06-12 2019-06-07 Dispositif servant à séparer des feuilles et procédé permettant de faire fonctionner un tel dispositif WO2019238564A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018113943.8 2018-06-12
DE102018113943.8A DE102018113943A1 (de) 2018-06-12 2018-06-12 Vorrichtung zum Auftrennen von Bögen

Publications (1)

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WO2019238564A1 true WO2019238564A1 (fr) 2019-12-19

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PCT/EP2019/064956 WO2019238564A1 (fr) 2018-06-12 2019-06-07 Dispositif servant à séparer des feuilles et procédé permettant de faire fonctionner un tel dispositif

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WO (1) WO2019238564A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588384A (en) 1946-08-10 1952-03-11 Eric L Hedstrom Box or carton stripper machine
GB1008417A (en) * 1962-02-22 1965-10-27 Feldmuehle Ag Device for the sorting out of single sheets of paper, paste-board, foils or of similar products in sheet form, by means of a surface scanning
DE2543660A1 (de) * 1975-09-30 1977-03-31 Clovis F Deslauriers Abstreifmaschine
DE102013002122A1 (de) 2013-02-08 2014-08-14 Jörg Scheffler Transportvorrichtung für Papier und Papierbearbeitungseinrichtung
EP2796253A2 (fr) * 2013-04-25 2014-10-29 Horizon International Inc. Machine de poinçonnage
DE102013208189A1 (de) * 2013-05-03 2014-11-06 Kama Gmbh Vorrichtung und Verfahren zum Ausbrechen und Nutzentrennen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4096981A (en) * 1977-03-18 1978-06-27 Wilson Jones Company Apparatus for stripping a continuous web of material from the marginal edge of a body
DE102010024778A1 (de) * 2010-06-23 2011-12-29 Heidelberger Druckmaschinen Ag Ablage- und Nutzentrennstation für eine Bogenstanzmaschine
DE102010053199C9 (de) * 2010-12-03 2020-12-31 Atlantic Zeiser Gmbh Vorrichtung zur Bearbeitung einer fortlaufenden Materialbahn

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2588384A (en) 1946-08-10 1952-03-11 Eric L Hedstrom Box or carton stripper machine
GB1008417A (en) * 1962-02-22 1965-10-27 Feldmuehle Ag Device for the sorting out of single sheets of paper, paste-board, foils or of similar products in sheet form, by means of a surface scanning
DE2543660A1 (de) * 1975-09-30 1977-03-31 Clovis F Deslauriers Abstreifmaschine
DE102013002122A1 (de) 2013-02-08 2014-08-14 Jörg Scheffler Transportvorrichtung für Papier und Papierbearbeitungseinrichtung
EP2796253A2 (fr) * 2013-04-25 2014-10-29 Horizon International Inc. Machine de poinçonnage
DE102013208189A1 (de) * 2013-05-03 2014-11-06 Kama Gmbh Vorrichtung und Verfahren zum Ausbrechen und Nutzentrennen

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