EP0242763B1 - Apparatus for cutting piles of sheets - Google Patents

Apparatus for cutting piles of sheets Download PDF

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Publication number
EP0242763B1
EP0242763B1 EP87105449A EP87105449A EP0242763B1 EP 0242763 B1 EP0242763 B1 EP 0242763B1 EP 87105449 A EP87105449 A EP 87105449A EP 87105449 A EP87105449 A EP 87105449A EP 0242763 B1 EP0242763 B1 EP 0242763B1
Authority
EP
European Patent Office
Prior art keywords
cut
cutting
advance
segments
side stop
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
EP87105449A
Other languages
German (de)
French (fr)
Other versions
EP0242763A3 (en
EP0242763A2 (en
Inventor
Wolfgang Mohr
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.)
Adolf Mohr Maschinenfabrik GmbH and Co KG
Original Assignee
Mohr Wolfgang
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 Mohr Wolfgang filed Critical Mohr Wolfgang
Publication of EP0242763A2 publication Critical patent/EP0242763A2/en
Publication of EP0242763A3 publication Critical patent/EP0242763A3/en
Application granted granted Critical
Publication of EP0242763B1 publication Critical patent/EP0242763B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01Means for holding or positioning work
    • B26D7/02Means for holding or positioning work with clamping means
    • B26D7/025Means for holding or positioning work with clamping means acting upon planar surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01Means for holding or positioning work
    • B26D7/015Means for holding or positioning work for sheet material or piles of sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18Means for removing cut-out material or waste
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2033Including means to form or hold pile of product pieces
    • Y10T83/2037In stacked or packed relation
    • Y10T83/2055And means to resist stack movement
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2092Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096Means to move product out of contact with tool
    • Y10T83/2135Moving stripper timed with tool stroke
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6476Including means to move work from one tool station to another
    • Y10T83/6478Tool stations angularly related
    • Y10T83/648Work manipulated between tool stations
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6572With additional mans to engage work and orient it relative to tool station
    • Y10T83/6576By opposed lateral guide means
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/727With means to guide moving work
    • Y10T83/741With movable or yieldable guide element
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/727With means to guide moving work
    • Y10T83/744Plural guide elements
    • Y10T83/745Opposed

Definitions

  • the invention relates to a device for cutting stacked sheet-like material made of paper or film material, with a table surface, a working area, above which there is a cutting knife and a press beam, behind an input field for receiving the material to be cut and an output field in front of it Includes recording of the cut good, with a side stop for aligning the good to be cut and with a feed device for the good to be cut.
  • Such a cutting device is known from EP-A-56 874.
  • the person skilled in the art knows that the cuts are made more precisely the better the stacked material to be cut is oriented in the transverse direction, that is to say at the side stop, and in the longitudinal direction, that is to say at the feed device.
  • This alignment is usually done by an operator by hand performed with the help of an angular pressure element.
  • this is tedious and time consuming, especially if you want to re-align before each cut.
  • DE-A-31 11 256 describes a device for the color division of plate-shaped materials, in which a sawing system has a table surface with a work area, on the front edge of which a press beam is provided, which presses the plate-shaped workpieces onto the table, while a circular saw blade along a cutting line is used to cut the plate into strips or pieces. Behind the work area there is an entrance area for receiving the goods to be cut and in front of it an exit area for receiving the cut goods. A side stop for aligning the good to be cut, a feed device for the good to be cut and a pressure slide movable in the direction of the cutting line for pressing the good to be cut against the side stop are provided.
  • the feed device is adjustable so that it can grip only one of a series of plate strips arranged in parallel on the input field and advance it perpendicular to the cutting line.
  • FR-A-23 36 217 describes a conveyor device for a mechanical saw, in which strip-shaped plates are advanced in the direction of a movable saw blade. The stack of plates must already be aligned be. A side stop is not provided.
  • the device has a slide which is divided into two in the transverse direction and has two slide elements, the effective width of each slide element being able to be set individually by raising or lowering slide fingers which are each assigned to a plate strip. However, the overall width of the slide should be kept constant.
  • US-A-2 589 033 describes a paper cutting machine using a frame-shaped punch knife.
  • the paper stack to be cut can be aligned in its intended place with the aid of stops or holders.
  • Each holder has a resilient stop surface which can be moved slightly outwards when the punch knife is lowered into the paper stack and can be inclined outwards when the punch knife is lowered.
  • FR-A-11 50 136 shows machine shears in which a closable opening is provided in the exit field.
  • the opening can be opened to receive pieces of waste during an intermediate cut. Simultaneously with the opening of the opening by lowering a flap, devices are moved out of the plane of the exit field which prevent the paper waste from reaching the exit field.
  • the invention has for its object to provide a cutting device of the type described above with improved alignment options.
  • This object is achieved in that a pressure slide that is automatically movable in the direction of the cutting line is provided for pressing the material to be cut against the side stop and that the effective width of the feed device is smaller than the distance between the side stop and pressure slide.
  • the pressure slide can remain approximately in place without colliding with the feed device.
  • the working distances of the pressure slide and its operating time are correspondingly short. Since it is actuated automatically, the time interval up to the subsequent cut can also be kept small. Overall, there is a transverse alignment with a minimum of time. It is therefore not difficult to carry out this alignment before each cut.
  • Interchangeable feed devices of different widths can be provided to adapt to different widths of the material to be cut. However, it is much cheaper if the feed device is divided into individual segments in the direction of the cutting line, the feed function of which can be rendered ineffective at least over part of the cutting knife width. By making the feed function effective for a more or less large number of segments, the effective width of the feed device can be adapted to the particular circumstances.
  • the segments can be moved from an operating position in which they take the material to be cut into an ineffective position.
  • the segments In the inactive position, the segments are lifted off the table surface of the cutting device and therefore do not collide with the pressure slide.
  • the segments can be pivoted up and back about a horizontal axis located behind them in the working position.
  • there are also other ways of rendering the feed function ineffective for example by uncoupling the ineffective segments from the feed drive.
  • the segments In the case of a cutting device in which the feed device has teeth which engage in the foremost position in grooves of the press beam, it is recommended that the segments have a pitch corresponding to the tooth pitch.
  • the segments can then be designed identically to one another.
  • the respective effective width range of the feed device interacts with the press beam in the same way as was previously the case for the entire feed device.
  • the pressure slide is expediently located above the working area behind the pressure beam effective level. In this position, it is located close to the cutting line so that the alignment takes place in the cutting area.
  • the pressure slide can be moved first under the pressure beam and then in the pressure direction when the pressure beam is raised. In this way, the pressure slide can be brought even closer to the cutting line.
  • a feed path for the material to be cut which runs transverse to the feed direction. The material can therefore be fed in without colliding with the pressure slide.
  • the input field can be formed by a transport plate which can be moved transversely to the feed direction.
  • the stacked goods to be cut can already be transported on this transport plate with a certain pre-alignment. It can also be brought up to the side stop with the help of the transport plate, resulting in a certain basic orientation.
  • the feeding of the material in the transverse direction and the reduced effective width of the feed device have the further advantage that not all of the material to be cut, which is located on the input field, has to be cut, but that - if this material is present, for example, in block strips arranged next to one another - One or a few block strips can be advanced and cut.
  • a holding-down device extending in the feed direction is expediently provided behind the pressure slide. This then holds the adjacent block strips in place when the block strips are advanced. With this hold-down device there is also no risk of a collision with the feed device.
  • the feed device can be lifted overall and can be returned to the rear in the raised state.
  • new goods can already be brought to the side stop via the feed path, while the feed device is returned to the starting position, because the feed device can be moved over the new goods.
  • the side stop can expediently be raised for the passage of the transport plate. This makes it possible to move the transport plate under the side stop as far as is necessary for the delivery of the entire stacked goods.
  • a filler of the side stop in the area of the cutter bar a filler of the side stop can be moved downward with the cutter bar and can be lowered to below the table surface during the feed movement.
  • the filler of the side stop is available Available if the goods are aligned transversely using the pressure slide. Since the filler piece sinks below the table surface, the stacks of the cut goods are not obstructed when they are removed from the work area to the front. Especially with smaller labels u. The like. The stack shape is preserved better than before.
  • a ruler running in the direction of the cutting line and arranged on the starting field can be provided, which has a limited stroke counter to the feed direction in order to press the material to be cut against the feed device.
  • the ruler Since the ruler is on the starting area, it can be placed at a distance from the working area. It is therefore possible to carry out the longitudinal alignment after the feed device has pushed the material to be cut into the position intended for the cut. The longitudinal alignment, like the transverse alignment, can therefore be carried out immediately before each cut.
  • the arrangement of the ruler on the starting field can also be used for further advantageous purposes.
  • the ruler can be tilted about a lower horizontal axis to support the stack of the cut material during cutting and then to straighten it up again. Relatively high stacks of small labels or the like can therefore be handled safely.
  • Hold-down elements can also be attached to the ruler, which lie resiliently on the material to be cut. This is of advantage, for example, if the sheet-like material is somewhat brittle and therefore tends to jump off when cutting.
  • a transverse channel leading to a further processing point on the exit field is recommended, which is formed by a first ruler mounted on the exit field and a second ruler behind it, which after opening the gap in his working position is feasible, and an ejector that is movable along the transverse channel.
  • the stack or stacks in particular also those with a relatively small sheet size, can be passed on, for example, to a punching device or an automatic bundling machine.
  • the second ruler can be provided with a squeegee and controlled so that it wipes along the knife bar when it moves upwards. This removes paper residues.
  • the squeegee be slid in the working position towards the inclined surface of the cutter bar. This sliding movement allows stripping to take place over the entire sloping surface.
  • the segments of the feed device and / or the side stop and / or the pressure slide have vertically movable sliding fingers seated on the table surface. This ensures that, despite the various movements of the parts mentioned, there is always contact with the table surface, so that the goods are gripped down to the bottom sheet of the stack.
  • the use of the cutting device as a second cutting device of a system in which a first cutting device is designed for the production of block strips by parallel cuts is particularly advantageous, in the second cutting device only a partial number of the effective segments of a number of block strips arranged next to one another in the direction of the cutting line the feed device can be taken along.
  • the use of two cutting devices, each of which is designed for one function, namely longitudinal cutting for producing the block strips, and cross cutting of these block strips, results in very efficient production.
  • the second cutting device works practically fully automatically and therefore very quickly.
  • the transverse cutting of the block strips can thus take place in approximately the same time as the manual longitudinal cutting of these block strips in the first cutting device. This does not exclude that the block strips are also supplied to the second cutting device by a plurality of first cutting devices, or conversely the block strips of a first cutting device are supplied to more than one second cutting device.
  • FIG. 1 shows a first cutting device 1 in the form of a face cutting machine with an indicated cutting line 2.
  • block strips 4 are separated from stacks 3 of large-area sheet material, the stacks 3 being aligned in the usual way on a side stop 5 and being advanced step by step by a feed device 6.
  • the loaded transport plate 8 arrives at a transfer station 11.
  • This has a buffer shelf 12 with a plurality of levels 13 arranged one above the other (FIG. 5), which can each be raised to the working height with the aid of a lifting device 14.
  • Each floor has at least two guide rails 15 and 16 and, if appropriate, further support means, such as rollers.
  • the transfer station 11 is formed by the level 13 located at the working height.
  • the transfer station 11 connects directly to a second cutting device 17, the cutting line 18 of which is again indicated by dash-dotted lines in FIG. 1.
  • This cutting device has a table surface 19, which consists of an input field 20, a working field 21 and an output field 22.
  • the input field 20, which roughly comprises the area B1 is formed by a transport plate 8 in each case.
  • the work area 21, which comprises approximately the area B2, is located below a cutting knife (cutter bar) 23, a press bar 24 (FIG. 7) and a pressure slide 25.
  • the exit area 22, which is located above can extend the area B3, serves to receive the finished cut stacks.
  • On one side of the exit field 22 there is an automatic bundling machine 27 for packaging the finished stacks and on the other hand an automatic punching machine 28 for further processing of the stacks. These machines can be used optionally.
  • the cutting device 17 has a feed device 29 which is composed of individual segments 30. These segments 30 each sit on a lever arm 31 which is pivotable about a rear axis 32. They can therefore be shifted from an effective position (fully extended in Fig. 2), in which they sit on the table surface 19, to an ineffective position (dash-dotted lines in Fig. 2), in which they are out of engagement with the table surface and the one located thereon Are stacked.
  • the pivoting is done by hand, but can also be carried out automatically by suitable drive means, for example servomotors.
  • Each segment 30 can have a sliding finger 33 which is guided vertically in the segment and is in contact with the table surface 19 due to its weight.
  • the press beam 24 has grooves 34, in which the feed device 29 engages with teeth 35 in its foremost position.
  • the division of the segments 30 corresponds to the tooth division (FIG. 4).
  • the feed device 29 is attached to a first carriage 36, which is displaceable in the vertical direction on a carriage 37.
  • the second carriage 37 can be moved in the longitudinal direction on a machine-fixed guide 38.
  • the displacement movement takes place in a known manner with the help of motors, not shown, and can be carried out fully automatically in accordance with a previously entered programming.
  • the cutting device 17 has a guide track 39 which has two guides 40 and 41 for the transport plate 8 and further support rails 42.
  • a coupling piece 43 can engage in a recess on the underside of the transport plate 8 and pull it out of the transfer station 11 onto the cutting device 17.
  • the coupling piece 43 is pivotally held in a housing 44, which is fastened to a chain 45, by means of a servomotor. This runs over a drive wheel 46, which is driven by a motor 47, and a deflection wheel 48.
  • a lowering device 49 is provided, which consists of a pneumatic or hydraulic piston-cylinder unit with a plunger 50, which depresses the guide rail 15.
  • the cutting device 17 is provided with a side stop 51, to which a proximity initiator 52 is assigned. As soon as the end face of the first block strip approaches this side stop 51, the proximity initiator 52 responds and switches off the motor 47. The block strips 4 therefore come in the immediate vicinity or in System at side stop 51 to rest.
  • the side stop 51 can be raised by means of an inclined surface 8a on the front edge of the transport plate 8, so that the transport plate 8 can be moved under the side stop. If the feed device 29 is now activated, only the active segments 30 take the stacked goods in front of them, in the present exemplary embodiment only three block strips 4 Servomotors 53 are moved several times against the feed direction in order to align the block strips 4 in the longitudinal direction, that is to say on the active segments 30 of the feed device 29.
  • the pressure slide 25 which is also provided with sliding fingers 54, is moved parallel to the cutting line 18 in order to press the advanced block strips 4 against the side stop 51 and thereby effect a transverse alignment. Before this pressure movement, the pressure slide 25 can still be moved closer to the cutting line 18 under the pressure beam 24, as is illustrated in broken lines in FIG. 1. The distance between the side stop 51 and the pressure slide 25 is greater than the effective width of the feed device 29.
  • the pressure slide 25 is actuated in the transverse direction by a servomotor 55, which in turn can be displaced in the feed direction with the aid of a servomotor 56.
  • This is connected to a carriage 58 which can be moved along a machine-fixed transverse guide 59.
  • the pressure movement of the ruler 26 or the pressure slide 25 can be carried out several times in succession if the nature of the material to be cut requires it.
  • the active surface of these pressure elements can be provided with an elastic pad.
  • a hold-down device 60 is fastened to the same carriage 58 and can be shifted and loaded vertically with the aid of a servomotor 61. It is pressed down on the first of the block strips 4a not to be displaced before the first feed movement of the feed device 29, so that the alignment of these block strips achieved in the loading and aligning station 7 is maintained.
  • an ejector 64 can be lowered into a transverse channel 66 by means of a servomotor 65.
  • the whole is fastened to a slide 67 which can be moved by a motor along a transverse guide 68 fixed to the machine.
  • the transverse channel is delimited by the ruler 26 and by a second ruler 69.
  • This second ruler moves into the position illustrated in FIG. 6 when the table top 70 forming the output field 22 has been advanced into the position shown in dashed lines in FIG. 1 to create a gap 73 between it and the working field 21, as in connection with this is explained in more detail with FIGS. 1 to 18.
  • the finished stack can then be fed fully automatically to the bundling machine 27 or the punching machine 28 through the transverse channel 66.
  • a block strip 4 is pressed by the ruler 26 against the segments 30 of the feed device 29, this ruler executing a movement in the direction of the arrow a from the dash-dotted position, possibly several times in succession. Shortly thereafter, the transverse alignment takes place with the aid of the pressure slide 25. Then the press beam 24, which is not illustrated here, is pressed down.
  • a stack 71 results which, owing to the shape of the knife bar, assumes a parallelogram-shaped cross section. It is supported by the ruler 26.
  • the table top 70 is raised by the amount x, for example 1 mm, from the height of the cutting bar 72 below the cutter bar 23. This will safely separate the bottom sheet from this cutting bar.
  • the table top 70 is now advanced according to FIG. 12 to form a gap 73 in the direction of the arrow e.
  • the ruler 69 which had assumed a rest position below the table top 70, tilts upward in the direction of the arrow f.
  • the ruler 26 tilts back into the vertical position in the direction of the arrow g.
  • the stack 71 is erected.
  • the ejector 64 lowers in the direction of the arrow h into the transverse channel 27 formed between the rulers 69 and 26.
  • the ruler 26 can be slightly lifted off the stack 71 in the direction of the arrow i.
  • the stack 71 can then be automatically fed to the automatic bundling machine 27 or the automatic punching machine 28.
  • the cutter bar 23 is again moved downward in the direction of the arrow b, the material 74 which has been separated falls down through the gap 73, preferably into a collecting container located there.
  • the ruler 69 has been tilted into a position approximately perpendicular to the inclined surface 75 of the cutter bar 23 and a squeegee 76 has been moved against this inclined surface 75 with the aid of a servomotor 77 in the direction of arrow 1.
  • a new work cycle can now begin, in which the segments 30 advance the block strips again into the vicinity of the ruler 26.
  • a new alignment process follows, a new cut and so on.
  • the motor 47 is excited again so that the transport plate 8 advances further to the left in FIG. 5.
  • the transport plate 8 stops and a new feed can be carried out with the aid of the feed device 29.
  • the feed device must be returned to the rest position illustrated in FIG. 1. This can take place before the transport plate 8 is moved further or simultaneously with it, namely when the feed device 29 is raised in its front position with the aid of the carriage 27 and moved back over the block strips into the starting position. Then a new feed takes place by means of the feed device 29. This work cycle is repeated until all block strips have been processed.
  • the transport plate 8 can then be transported back to an empty floor of the buffer shelf 12 with the aid of the coupling piece 44.
  • the second cutting device 17 and the feed arrangement with the transport plate 8 can be operated largely automatically. As a result, a single operator is sufficient for the production of labels, who produces the block strips 4 on the cutting device 1, places them correctly on the loading and aligning station 7 and otherwise only monitors the automatic process of the system.
  • the empty transport plates 8 on the side of the input field 20 facing away from the transfer station 11 can be removed.
  • the ruler 26 can additionally carry resilient hold-down elements 78, as shown in FIG. 9. In this way it can be ensured, even in the case of brittle sheet material, that the individual sheets do not jump away. If the hold-down elements 78 are not required, they can be folded away (FIG. 10). Furthermore, the ruler 26 can be provided with a proximity initiator 79 (FIG. 18), which responds when the front side 80 of the block strip 4 comes closer to the ruler 26 than corresponds to a predetermined limit distance. In this case, the feed device 29 is switched off in order to avoid incorrect operation. In addition, the feed device can be provided with a slip clutch, which responds when the block strips 4 find resistance during the feed.
  • the servomotors required for the automatic process are shown here as pneumatic or hydraulic piston-cylinder units.
  • the servomotors can also be operated mechanically, electrically or in any other known manner.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Pile Receivers (AREA)
  • Details Of Cutting Devices (AREA)
  • Making Paper Articles (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Schneiden von gestapeltem blattförmigem Gut aus Papier oder Folienmaterial, mit einer Tischfläche, die ein Arbeitsfeld, über dem sich ein Schneidmesser und ein Preßbalken befinden, dahinter ein Eingangsfeld zur Aufnahme des zu schneidenden Guts und davor ein Ausgangsfeld zur Aufnahme des geschnittenen Guts aufweist, mit einem Seitenanschlag zum Ausrichten des zu schneidenden Guts und mit einer Vorschubeinrichtung für das zu schneidende Gut.The invention relates to a device for cutting stacked sheet-like material made of paper or film material, with a table surface, a working area, above which there is a cutting knife and a press beam, behind an input field for receiving the material to be cut and an output field in front of it Includes recording of the cut good, with a side stop for aligning the good to be cut and with a feed device for the good to be cut.

Eine solche Schneidvorrichtung ist aus EP-A-56 874 bekannt. Es werden hauptsächlich Stapel aus Papier, Pappe, Kunststoffolie u. dgl. geschnitten. Der Fachmann weiß, daß die Schnitte um so genauer geführt sind, je besser das gestapelte zu schneidende Gut in Querrichtung, also am Seitenanschlag, und in Längsrichtung, also an der Vorschubeinrichtung, ausgerichtet ist. Dieses Ausrichten wird normalerweise von einer Bedienungsperson von Hand mit Hilfe eines winkelförmigen Andruckelements durchgeführt. Dies ist jedoch mühsam und zeitraubend, insbesondere, wenn vor jedem Schnitt ein erneutes Ausrichten erfolgen soll.Such a cutting device is known from EP-A-56 874. There are mainly stacks of paper, cardboard, plastic film and. Like. cut. The person skilled in the art knows that the cuts are made more precisely the better the stacked material to be cut is oriented in the transverse direction, that is to say at the side stop, and in the longitudinal direction, that is to say at the feed device. This alignment is usually done by an operator by hand performed with the help of an angular pressure element. However, this is tedious and time consuming, especially if you want to re-align before each cut.

Bei der Schneidvorrichtung nach EP-A-56 874 ist auch schon ein automatisches Ausrichten in Längsrichtung vorgesehen. Zur schnellen Abfuhr des Abfallmaterials von Rand- und Zwischenschnitten wird durch Vorziehen des Ausgangsfeldes gegenüber dem Arbeitsfeld ein Spalt gebildet. Durch diesen Spalt wird ein in seiner Ruhestellung unterhalb des Ausgangsfeldes befindliches Lineal in eine vertikale Lage geschwenkt, wodurch das bis zur Vorderkante des Arbeitsfeldes reichende gestapelte Gut gegen die sich über die Maschinenbreite erstreckende Vorschubeinrichtung gedrückt wird. Da aber der nächste Schnitt erst nach einem weiteren Vorschubschritt erfolgt, kann diese Ausrichtung teilweise wieder verloren gehen.In the cutting device according to EP-A-56 874, automatic alignment in the longitudinal direction is already provided. To quickly remove the waste material from marginal and intermediate cuts, a gap is formed by pulling the starting area forward over the working area. Through this gap, a ruler located in its rest position below the starting field is pivoted into a vertical position, as a result of which the stacked goods reaching to the front edge of the working field are pressed against the feed device which extends across the machine width. However, since the next cut is only made after a further feed step, this alignment can sometimes be lost again.

DE-A-31 11 256 beschreibt eine Einrichtung zum Buntaufteilen von plattenförmigen Werkstoffen, bei der eine Sägeanlage eine Tischfläche mit einem Arbeitsfeld aufweist, an dessen Vorderkante ein Preßbalken vorgesehen ist, der die plattenförmigen Werkstücke auf den Tisch preßt, während ein Kreissägeblatt entlang einer Schnittlinie verfahren wird, um die Platte in Streifen oder in Stücke zu schneiden. Hinter dem Arbeitsfeld befindet sich ein Eingangsfeld zur Aufnahme des zu schneidenden Guts und davor ein Ausgangsfeld zur Aufnahme des geschnitten Guts. Ein Seitenanschlag zum Ausrichten des zu schneidenden Guts, eine Vorschubeinrichtung für das zu schneidende Gut und ein in Richtung der Schnittlinie bewegbarer Andruckschieber zum Andrücken des zu schneidenden Guts an den Seitenanschlag sind vorgesehen. Die Vorschubeinrichtung ist so einstellbar, daß sie aus einer Reihe von parallel auf dem Eingangsfeld angeordneten Plattenstreifen lediglich einen ergreifen und senkrecht zur Schnittlinie vorschieben kann.DE-A-31 11 256 describes a device for the color division of plate-shaped materials, in which a sawing system has a table surface with a work area, on the front edge of which a press beam is provided, which presses the plate-shaped workpieces onto the table, while a circular saw blade along a cutting line is used to cut the plate into strips or pieces. Behind the work area there is an entrance area for receiving the goods to be cut and in front of it an exit area for receiving the cut goods. A side stop for aligning the good to be cut, a feed device for the good to be cut and a pressure slide movable in the direction of the cutting line for pressing the good to be cut against the side stop are provided. The feed device is adjustable so that it can grip only one of a series of plate strips arranged in parallel on the input field and advance it perpendicular to the cutting line.

FR-A-23 36 217 beschreibt eine Fördereinrichtung für eine mechanische Säge, bei der streifenförmige Platten in Richtung auf ein bewegbares Sägeblatt vorgeschoben werden. Die Plattenstapel müssen dabei bereits ausgerichtet sein. Ein Seitenanschlag ist nicht vorgesehen. Die Vorrichtung weist einen in Querrichtung zweigeteilten Schieber mit zwei Teilschiebern auf, wobei die wirksame Breite jedes Teilschiebers individuell durch Anheben oder Absenken von Schieberfingern, die jeweils einem Plattenstreifen zugeordnet sind, eingestellt werden kann. Die Gesamtbreite des Schiebers soll jedoch konstant gehalten werden.FR-A-23 36 217 describes a conveyor device for a mechanical saw, in which strip-shaped plates are advanced in the direction of a movable saw blade. The stack of plates must already be aligned be. A side stop is not provided. The device has a slide which is divided into two in the transverse direction and has two slide elements, the effective width of each slide element being able to be set individually by raising or lowering slide fingers which are each assigned to a plate strip. However, the overall width of the slide should be kept constant.

US-A-2 589 033 beschreibt eine Papierschneidemaschine, bei der ein rahmenförmiges Stanzmesser verwendet wird. Der zu schneidende Papierstapel ist mit Hilfe von Anschlägen oder Haltern an seinem vorgesehenen Platz ausrichtbar. Jeder Halter hat eine nachgiebige Anschlagfläche, die sich beim Absenken des Stanzmessers in den Papierstapel geringfügig nach außen verschieben und nach außen neigen läßt, wenn das Stanzmesser abgesenkt wird.US-A-2 589 033 describes a paper cutting machine using a frame-shaped punch knife. The paper stack to be cut can be aligned in its intended place with the aid of stops or holders. Each holder has a resilient stop surface which can be moved slightly outwards when the punch knife is lowered into the paper stack and can be inclined outwards when the punch knife is lowered.

FR-A-11 50 136 zeigt eine Maschinenschere, bei der im Ausgangsfeld eine verschließbare Öffnung vorgesehen ist. Die Öffnung kann freigegeben werden, um Abfallstücke bei einem Zwischenschnitt aufzunehmen. Gleichzeitig mit dem Freigeben der Öffnung durch Absenken einer Klappe werden Einrichtungen aus der Ebene des Ausgangsfeldes herausgefahren, die verhindern, daß die Papierabfälle auf das Ausgangsfeld gelangen.FR-A-11 50 136 shows machine shears in which a closable opening is provided in the exit field. The opening can be opened to receive pieces of waste during an intermediate cut. Simultaneously with the opening of the opening by lowering a flap, devices are moved out of the plane of the exit field which prevent the paper waste from reaching the exit field.

Der Erfindung liegt die Aufgabe zugrunde, eine Schneidvorrichtung der eingangs beschriebenen Art mit verbesserten Ausrichtmöglichkeiten anzugeben.The invention has for its object to provide a cutting device of the type described above with improved alignment options.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zum Andrücken des zu schneidenden Guts an dem Seitenanschlag ein in Richtung der Schnittlinie automatisch bewegbarer Andruckschieber vorgesehen ist und daß die wirksame Breite der Vorschubeinrichtung kleiner als der Abstand zwischen Seitenanschlag und Andruckschieber ist.This object is achieved in that a pressure slide that is automatically movable in the direction of the cutting line is provided for pressing the material to be cut against the side stop and that the effective width of the feed device is smaller than the distance between the side stop and pressure slide.

Da die wirksame Breite der Vorschubeinrichtung gegenüber der normalen Maschinenbreite verkürzt ist, kann der Andruckschieber etwa an Ort und Stelle verbleiben, ohne mit der Vorschubeinrichtung zu kollidieren. Entsprechend kurz sind die Arbeitswege des Andruckschiebers und seine Betätigungszeit. Da er automatisch betätigt wird, kann auch der zeitliche Abstand bis zum nachfolgenden Schnitt klein gehalten werden. Insgesamt ergibt sich eine Querausrichtung mit einem Minimum an Zeitaufwand. Es bereitet daher auch keine Schwierigkeiten, diese Ausrichtung vor jedem Schnitt durchzuführen.Since the effective width of the feed device is shortened compared to the normal machine width, the pressure slide can remain approximately in place without colliding with the feed device. The working distances of the pressure slide and its operating time are correspondingly short. Since it is actuated automatically, the time interval up to the subsequent cut can also be kept small. Overall, there is a transverse alignment with a minimum of time. It is therefore not difficult to carry out this alignment before each cut.

Zwecks Anpassung an verschiedene Breiten des zu schneidenden Guts kann man auswechselbare Vorschubeinrichtungen verschiedener Breite vorsehen. Wesentlich günstiger ist es jedoch, wenn die Vorschubeinrichtung in Richtung der Schnittlinie in einzelne Segmente unterteilt ist, deren Vorschubfunktion zumindest über einen Teil der Schneidmesserbreite unwirksam machbar ist. Dadurch, daß die Vorschubfunktion für eine mehr oder weniger große Zahl von Segmenten wirksam gemacht wird, kann man die wirksame Breite der Vorschubeinrichtung den jeweiligen Gegebenheiten anpassen.Interchangeable feed devices of different widths can be provided to adapt to different widths of the material to be cut. However, it is much cheaper if the feed device is divided into individual segments in the direction of the cutting line, the feed function of which can be rendered ineffective at least over part of the cutting knife width. By making the feed function effective for a more or less large number of segments, the effective width of the feed device can be adapted to the particular circumstances.

Besonders günstig ist es, daß die Segmente aus einer Arbeitsstellung, in der sie das zu schneidende Gut mitnehmen, in eine unwirksame Stellung verlagerbar sind. In der unwirksamen Stellung sind die Segmente von der Tischfläche der Schneidvorrichtung abgehoben und kollidieren daher nicht mit dem Andruckschieber. Hierbei können die Segmente um eine in der Arbeitsstellung hinter ihnen befindliche horizontale Achse nach oben und hinten schwenkbar sein. Es gibt aber auch andere Möglichkeiten, die Vorschubfunktion unwirksam zu machen, beispielsweise indem man die unwirksamen Segmente vom Vorschubantrieb abkuppelt.It is particularly favorable that the segments can be moved from an operating position in which they take the material to be cut into an ineffective position. In the inactive position, the segments are lifted off the table surface of the cutting device and therefore do not collide with the pressure slide. Here, the segments can be pivoted up and back about a horizontal axis located behind them in the working position. However, there are also other ways of rendering the feed function ineffective, for example by uncoupling the ineffective segments from the feed drive.

Bei einer Schneidvorrichtung, bei der die Vorschubeinrichtung Zähne aufweist, die in der vordersten Stellung in Nuten des Preßbalkens eingreifen, empfiehlt es sich, daß die Segmente eine der Zahnteilung entsprechende Teilung haben. Die Segmente können dann untereinander gleich ausgeführt werden. Der jeweils wirksame Breitenbereich der Vorschubeinrichtung wirkt in gleicher Weise mit dem Preßbalken zusammen, wie dies bisher für die gesamte Vorschubeinrichtung der Fall war.In the case of a cutting device in which the feed device has teeth which engage in the foremost position in grooves of the press beam, it is recommended that the segments have a pitch corresponding to the tooth pitch. The segments can then be designed identically to one another. The respective effective width range of the feed device interacts with the press beam in the same way as was previously the case for the entire feed device.

Zweckmäßigerweise befindet sich der Andruckschieber oberhalb des Arbeitsfeldes hinter der Preßbalken-Wirkebene. In dieser Lage ist er nahe der Schnittlinie angeordnet, so daß das Ausrichten im Schnittbereich erfolgt.The pressure slide is expediently located above the working area behind the pressure beam effective level. In this position, it is located close to the cutting line so that the alignment takes place in the cutting area.

Für besonders hohe Ansprüche empfiehlt es sich, daß der Andruckschieber bei angehobenem Preßbalken zunächst unter diesen und dann in Andruckrichtung bewegbar ist. Auf diese Weise kann der Andruckschieber noch näher an die Schnittlinie herangeführt werden.For particularly high demands, it is recommended that the pressure slide can be moved first under the pressure beam and then in the pressure direction when the pressure beam is raised. In this way, the pressure slide can be brought even closer to the cutting line.

Bei einer bevorzugten Ausführungsform befindet sich hinter dem Andruckschieber eine quer zur Vorschubrichtung verlaufende Zuführbahn für das zu schneidende Gut. Das Gut kann daher zugeführt werden, ohne mit dem Andruckschieber zu kollidieren.In a preferred embodiment, behind the pressure slide there is a feed path for the material to be cut which runs transverse to the feed direction. The material can therefore be fed in without colliding with the pressure slide.

Insbesondere kann das Eingangsfeld durch eine quer zur Vorschubrichtung bewegbare Transportplatte gebildet sein. Auf dieser Transportplatte läßt sich das zu schneidende, gestapelte Gut bereits mit einer gewissen Vorausrichtung antransportieren. Es kann auch mit Hilfe der Transportplatte bis zur Anlage an den Seitenanschlag herangeführt werden, wobei sich eine gewisse Grund-Ausrichtung ergibt.In particular, the input field can be formed by a transport plate which can be moved transversely to the feed direction. The stacked goods to be cut can already be transported on this transport plate with a certain pre-alignment. It can also be brought up to the side stop with the help of the transport plate, resulting in a certain basic orientation.

Die Zuführung des Guts in Querrichtung und die verminderte wirksame Breite der Vorschubeinrichtung haben den weiteren Vorteil, daß nicht jeweils das gesamte zu schneidende Gut, das sich auf dem Eingangsfeld befindet, geschnitten werden muß, sondern daß - wenn dieses Gut beispielsweise in nebeneinander angeordneten Blockstreifen vorliegt - jeweils ein oder wenige Blockstreifen vorgeschoben und geschnitten werden können. In diesem Fall ist zweckmäßigerweise hinter dem Andruckschieber ein sich in Vorschubrichtung erstreckender Niederhalter vorgesehen. Dieser hält dann beim Vorschub der Blockstreifen den benachbarten Blockstreifen fest. Auch bei diesem Niederhalter ist keine Kollision mit der Vorschubeinrichtung zu befürchten.The feeding of the material in the transverse direction and the reduced effective width of the feed device have the further advantage that not all of the material to be cut, which is located on the input field, has to be cut, but that - if this material is present, for example, in block strips arranged next to one another - One or a few block strips can be advanced and cut. In this case, a holding-down device extending in the feed direction is expediently provided behind the pressure slide. This then holds the adjacent block strips in place when the block strips are advanced. With this hold-down device there is also no risk of a collision with the feed device.

Mit Vorteil ist die Vorschubeinrichtung insgesamt anhebbar und in angehobenem Zustand nach hinten zurückführbar. Auf diese Weise kann bereits neues Gut über die Zuführbahn an den Seitenanschlag herangeführt werden, während die Vorschubeinrichtung in die Ausgangslage zurückgeführt wird, weil die Vorschubeinrichtung hierbei über das neue Gut hinwegbewegt werden kann.Advantageously, the feed device can be lifted overall and can be returned to the rear in the raised state. In this way, new goods can already be brought to the side stop via the feed path, while the feed device is returned to the starting position, because the feed device can be moved over the new goods.

Der Seitenanschlag ist zwecks Durchlaß der Transportplatte zweckmäßigerweise anhebbar. Dies macht es möglich, die Transportplatte so weit unter dem Seitenanschlag hindurchzubewegen, wie es für die Abgabe des gesamten gestapelten Guts erforderlich ist.The side stop can expediently be raised for the passage of the transport plate. This makes it possible to move the transport plate under the side stop as far as is necessary for the delivery of the entire stacked goods.

Bei einer bevorzugten Ausführungsform ist dafür gesorgt, daß im Bereich des Messerbalkens ein Füllstück des Seitenanschlags mit dem Messerbalken abwärts bewegbar und bei der Vorschubbewegung bis unter die Tischfläche absenkbar ist. Das Füllstück des Seitenanschlags steht zur Verfügung, wenn das Gut mit Hilfe des Andruckschiebers quer ausgerichtet wird. Da sich das Füllstück bis unter die Tischfläche absenkt, werden die Stapel des geschnittenen Guts nicht behindert, wenn sie vom Arbeitsfeld nach vorn abgenommen werden. Insbesondere bei kleineren Etiketten u. dgl. wird die Stapelform besser als bisher erhalten.In a preferred embodiment it is ensured that in the area of the cutter bar a filler of the side stop can be moved downward with the cutter bar and can be lowered to below the table surface during the feed movement. The filler of the side stop is available Available if the goods are aligned transversely using the pressure slide. Since the filler piece sinks below the table surface, the stacks of the cut goods are not obstructed when they are removed from the work area to the front. Especially with smaller labels u. The like. The stack shape is preserved better than before.

Weiters kann auch ein in Richtung der Schnittlinie verlaufendes, auf dem Ausgangsfeld angeordnetes Lineal vorgesehen sein, das einen begrenzten Hub entgegen der Vorschubrichtung hat, um das zu schneidende Gut gegen die Vorschubeinrichtung zu drücken.Furthermore, a ruler running in the direction of the cutting line and arranged on the starting field can be provided, which has a limited stroke counter to the feed direction in order to press the material to be cut against the feed device.

Da sich das Lineal auf dem Ausgangsfeld befindet, kann es mit Abstand vor dem Arbeitsfeld angeordnet werden. Daher ist es möglich, das Längsausrichten vorzunehmen, nachdem die Vorschubeinrichtung das zu schneidende Gut in die zum Schnitt vorgesehene Lage vorgeschoben hat. Das Längsausrichten kann daher genauso wie das Querausrichten unmittelbar vor jedem Schnitt erfolgen. Die Anordnung des Lineals auf dem Ausgangsfeld kann auch noch für weitere vorteilhafte Zwecke angewendet werden.Since the ruler is on the starting area, it can be placed at a distance from the working area. It is therefore possible to carry out the longitudinal alignment after the feed device has pushed the material to be cut into the position intended for the cut. The longitudinal alignment, like the transverse alignment, can therefore be carried out immediately before each cut. The arrangement of the ruler on the starting field can also be used for further advantageous purposes.

So empfiehlt es sich, daß das Lineal um eine untere horizontale Achse kippbar ist, um den Stapel des geschnittenen Guts beim Schneiden abzustützen und anschließend wieder senkrecht aufzurichten. Es lassen sich daher verhältnismäßig hohe Stapel kleiner Etiketten o. dgl. sicher handhaben.So it is recommended that the ruler can be tilted about a lower horizontal axis to support the stack of the cut material during cutting and then to straighten it up again. Relatively high stacks of small labels or the like can therefore be handled safely.

Am Lineal können auch Niederhalterelemente angebracht sein, die sich federnd auf das zu schneidende Gut legen. Dies ist beispielsweise von Vorteil, wenn das blattförmige Gut etwas spröde ist und daher beim Schneiden wegzuspringen neigt.Hold-down elements can also be attached to the ruler, which lie resiliently on the material to be cut. This is of advantage, for example, if the sheet-like material is somewhat brittle and therefore tends to jump off when cutting.

Wenn das Ausgangsfeld unter Bildung eines Spalts relativ zum Arbeitsfeld bewegbar ist, empfiehlt sich ein zu einer Weiterverarbeitungsstelle führender Querkanal auf dem Ausgangsfeld, der durch ein auf dem Ausgangsfeld montiertes erstes Lineal und ein dahinter befindliches zweites Lineal gebildet ist, das nach dem Öffnen des Spalts in seine Arbeitslage bringbar ist, und ein Ausstoßer, der längs des Querkanals beweglich ist. Auf diese Weise können der oder die Stapel, insbesondere auch solche mit verhältnismäßig kleiner Blattgröße, beispielsweise zu einer Stanzvorrichtung oder einem Bündelautomaten weitergeführt werden.If the exit field can be moved relative to the working field with the formation of a gap, a transverse channel leading to a further processing point on the exit field is recommended, which is formed by a first ruler mounted on the exit field and a second ruler behind it, which after opening the gap in his working position is feasible, and an ejector that is movable along the transverse channel. In this way, the stack or stacks, in particular also those with a relatively small sheet size, can be passed on, for example, to a punching device or an automatic bundling machine.

Insbesondere kann das zweite Lineal in seiner Ruhelage unter dem Ausgangsfeld angeordnet und durch den Spalt in seine Arbeitslage bringbar sein.In particular, the second ruler can be arranged in its rest position under the starting field and can be brought into its working position through the gap.

Hierbei kann das zweite Lineal mit einer Abstreifleiste versehen und so gesteuert sein, daß diese bei der Aufwärtsbewegung des Messerbalkens an diesem entlangwischt. Damit werden Papierreste abgestreift.Here, the second ruler can be provided with a squeegee and controlled so that it wipes along the knife bar when it moves upwards. This removes paper residues.

Empfehlenswert ist es, daß die Abstreifleiste in der Arbeitsstellung in Richtung auf die Schrägfläche des Messerbalkens verschiebbar ist. Durch diese Verschiebebewegung kann das Abstreifen über die gesamte schräge Oberfläche erfolgen.It is recommended that the squeegee be slid in the working position towards the inclined surface of the cutter bar. This sliding movement allows stripping to take place over the entire sloping surface.

Mit Vorteil weisen die Segmente der Vorschubeinrichtung und/oder der Seitenanschlag und/oder der Andruckschieber vertikal bewegliche und auf der Tischfläche aufsitzende Gleitfinger auf. Hiermit ist sichergestellt, daß trotz der verschiedenen Bewegungen der genannten Teile immer ein Kontakt mit der Tischfläche vorhanden ist, so daß das Gut bis zum untersten Blatt des Stapels erfaßt wird.Advantageously, the segments of the feed device and / or the side stop and / or the pressure slide have vertically movable sliding fingers seated on the table surface. This ensures that, despite the various movements of the parts mentioned, there is always contact with the table surface, so that the goods are gripped down to the bottom sheet of the stack.

Besonders vorteilhaft ist die Anwendung der Schneidvorrichtung als zweite Schneidvorrichtung eines Systems, bei dem eine erste Schneidvorrichtung für die Erzeugung von Blockstreifen durch Parallelschnitte ausgelegt ist, wobei in der zweiten Schneidvorrichtung von einer Anzahl in Richtung der Schnittlinie nebeneinander angeordneten Blockstreifen nur eine Teilanzahl von den wirksamen Segmenten der Vorschubeinrichtung mitnehmbar ist. Durch die Verwendung von zwei Schneidvorrichtungen, die je auf eine Funktion, nämlich Längsschneiden zur Erzeugung der Blockstreifen, und Querschneiden dieser Blockstreifen ausgelegt sind, ergibt sich eine sehr rationelle Fertigung. Die zweite Schneidvorrichtung arbeitet praktisch vollautomatisch und daher sehr schnell. So kann das Querschneiden der Blockstreifen etwa in der gleichen Zeit erfolgen wie das manuell betriebene Längsschneiden dieser Blockstreifen in der ersten Schneidvorrichtung. Dies schließt es nicht aus, daß der zweiten Schneidvorrichtung die Blockstreifen auch von mehreren ersten Schneidvorrichtungen oder umgekehrt die Blockstreifen einer ersten Schneidvorrichtung mehr als einer zweiten Schneidvorrichtung zugeliefert werden.The use of the cutting device as a second cutting device of a system in which a first cutting device is designed for the production of block strips by parallel cuts is particularly advantageous, in the second cutting device only a partial number of the effective segments of a number of block strips arranged next to one another in the direction of the cutting line the feed device can be taken along. The use of two cutting devices, each of which is designed for one function, namely longitudinal cutting for producing the block strips, and cross cutting of these block strips, results in very efficient production. The second cutting device works practically fully automatically and therefore very quickly. The transverse cutting of the block strips can thus take place in approximately the same time as the manual longitudinal cutting of these block strips in the first cutting device. This does not exclude that the block strips are also supplied to the second cutting device by a plurality of first cutting devices, or conversely the block strips of a first cutting device are supplied to more than one second cutting device.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
eine Draufsicht auf ein Schneidsystem mit der erfindungsgemäßen Schneidvorrichtung,
Fig. 2
eine Seitenansicht der Vorschubeinrichtung,
Fig. 3
eine Teilansicht der Vorschubeinrichtung von hinten,
Fig. 4
einen Horizontal schnitt durch die in den Preßbalken eingreifende Vorschubeinrichtung,
Fig. 5
eine schematische Ansicht der Schneidvorrichtung von hinten, wobei die Vorschubeinrichtung entfernt ist,
Fig. 6
einen schematischen Vertikalschnitt durch den Arbeitsbereich der Schneidvorrichtung,
Fig. 7
einen vergrößerten Schnitt durch den Bereich der Bewegungsbahn des Schneidmessers,
Fig. 8 bis 18
den Arbeitsbereich der Schneidvorrichtung in einzelnen Arbeitphasen.
The invention is explained below with reference to a preferred embodiment shown in the drawing. Show it:
Fig. 1
a plan view of a cutting system with the cutting device according to the invention,
Fig. 2
a side view of the feed device,
Fig. 3
a partial view of the feed device from behind,
Fig. 4
a horizontal section through the feed device engaging in the press beam,
Fig. 5
2 shows a schematic view of the cutting device from behind, the feed device being removed,
Fig. 6
2 shows a schematic vertical section through the working area of the cutting device,
Fig. 7
an enlarged section through the area of the path of movement of the cutting knife,
8 to 18
the working area of the cutting device in individual work phases.

In Fig. 1 ist eine erste Schneidvorrichtung 1 in der Form einer Planschneidmaschine mit einer angedeuteten Schnittlinie 2 dargestellt. Hier werden von Stapeln 3 aus großflächigem Blattmaterial Blockstreifen 4 abgetrennt, wobei die Stapel 3 in üblicher Weise an einem Seitenanschlag 5 ausgerichtet und durch eine Vorschubeinrichtung 6 schrittweise vorgeschoben werden.1 shows a first cutting device 1 in the form of a face cutting machine with an indicated cutting line 2. Here, block strips 4 are separated from stacks 3 of large-area sheet material, the stacks 3 being aligned in the usual way on a side stop 5 and being advanced step by step by a feed device 6.

Die Blockstreifen 4 werden an einer Belade- und Vorausrichtstation 7 auf einer Transportplatte 8 gesammelt. An deren Rändern gibt es zwei senkrecht zueinander verlaufende Anschläge 9 und 10, mit deren Hilfe die Blockstreifen 4 einwandfrei ausgerichtet nebeneinander auf der Transportplatte 8 plaziert werden können. Die beladene Transportplatte 8 kann dann nach rechts in Fig. 1 verschoben werden, nachdem der Anschlag 9 um ein geringes Maß weggerückt und der Anschlag 10 nach unten oder nach oben verlagert worden ist.The block strips 4 are collected at a loading and pre-alignment station 7 on a transport plate 8. At the edges there are two stops 9 and 10 running perpendicular to each other, with the aid of which the block strips 4 can be placed perfectly aligned next to one another on the transport plate 8. The loaded transport plate 8 can then be moved to the right in FIG. 1 after the stop 9 has been moved away by a small amount and the stop 10 has been moved down or up.

Die beladene Transportplatte 8 gelangt auf eine Übergabestation 11. Diese weist ein Pufferregal 12 mit mehreren übereinander angeordneten Etagen 13 auf (Fig. 5), die mit Hilfe einer Hubvorrichtung 14 jeweils in die Arbeitshöhe gebracht werden können. Jede Etage besitzt zumindest zwei Führungsschienen 15 und 16 und gegebenenfalls noch weitere Abstützmittel, wie Rollen. Die Übergabestation 11 wird durch die jeweils in der Arbeitshöhe befindliche Etage 13 gebildet.The loaded transport plate 8 arrives at a transfer station 11. This has a buffer shelf 12 with a plurality of levels 13 arranged one above the other (FIG. 5), which can each be raised to the working height with the aid of a lifting device 14. Each floor has at least two guide rails 15 and 16 and, if appropriate, further support means, such as rollers. The transfer station 11 is formed by the level 13 located at the working height.

Die Übergabestation 11 schließt unmittelbar an eine zweite Schneidvorrichtung 17 an, deren Schnittlinie 18 in Fig. 1 wiederum strichpunktiert angedeutet ist. Diese Schneidvorrichtung besitzt eine Tischfläche 19, die aus einem Eingangsfeld 20, einem Arbeitsfeld 21 und einem Ausgangsfeld 22 besteht. Das Eingangsfeld 20, das etwa den Bereich B1 umfaßt, wird durch jeweils eine Transportplatte 8 gebildet. Das Arbeitsfeld 21, das etwa den Bereich B2 umfaßt, befindet sich unterhalb eines Schneidmessers (Messerbalken) 23, eines Preßbalkens 24 (Fig. 7) sowie eines Andruckschiebers 25. Das Ausgangsfeld 22, das sich über den Bereich B3 erstrecken kann, dient zur Aufnahme der fertiggeschnittenen Stapel. Auf ihm befindet sich ein ebenfalls dem Ausrichten dienendes Lineal 26. Auf der einen Seite des Ausgangsfeldes 22 ist ein Bündelautomat 27 zum Verpacken der fertigen Stapel und auf der anderen Seite ein Stanzautomat 28 zur weiteren Verarbeitung der Stapel vorgesehen. Diese Automaten können wahlweise eingesetzt werden.The transfer station 11 connects directly to a second cutting device 17, the cutting line 18 of which is again indicated by dash-dotted lines in FIG. 1. This cutting device has a table surface 19, which consists of an input field 20, a working field 21 and an output field 22. The input field 20, which roughly comprises the area B1, is formed by a transport plate 8 in each case. The work area 21, which comprises approximately the area B2, is located below a cutting knife (cutter bar) 23, a press bar 24 (FIG. 7) and a pressure slide 25. The exit area 22, which is located above can extend the area B3, serves to receive the finished cut stacks. On it there is a ruler 26 also used for alignment. On one side of the exit field 22 there is an automatic bundling machine 27 for packaging the finished stacks and on the other hand an automatic punching machine 28 for further processing of the stacks. These machines can be used optionally.

Die Schneidvorrichtung 17 besitzt eine Vorschubeinrichtung 29, die aus einzelnen Segmenten 30 zusammengesetzt ist. Diese Segmente 30 sitzen jeweils an einem Hebelarm 31, der um eine hintere Achse 32 schwenkbar ist. Sie können daher aus einer wirksamen Stellung (vollausgezogen in Fig. 2), in der sie auf der Tischfläche 19 aufsitzen, in eine unwirksame Stellung (strichpunktiert in Fig. 2) verlagert werden, in der sie außer Eingriff mit der Tischfläche und dem darauf befindlichen Stapelgut sind. Das Verschwenken erfolgt von Hand, kann aber auch automatisch durch geeignete Antriebsmittel, beispielsweise Stellmotoren, vorgenommen werden.The cutting device 17 has a feed device 29 which is composed of individual segments 30. These segments 30 each sit on a lever arm 31 which is pivotable about a rear axis 32. They can therefore be shifted from an effective position (fully extended in Fig. 2), in which they sit on the table surface 19, to an ineffective position (dash-dotted lines in Fig. 2), in which they are out of engagement with the table surface and the one located thereon Are stacked. The pivoting is done by hand, but can also be carried out automatically by suitable drive means, for example servomotors.

Jedes Segment 30 kann einen Gleitfinger 33 aufweisen, der vertikal im Segment geführt und infolge seines Gewichts mit der Tischfläche 19 in Kontakt ist. Der Preßbalken 24 hat Nuten 34, in welche die Vorschubeinrichtung 29 in ihrer vordersten Stellung mit Zähnen 35 eingreift. Die Teilung der Segmente 30 entspricht der Zahnteilung (Fig. 4).Each segment 30 can have a sliding finger 33 which is guided vertically in the segment and is in contact with the table surface 19 due to its weight. The press beam 24 has grooves 34, in which the feed device 29 engages with teeth 35 in its foremost position. The division of the segments 30 corresponds to the tooth division (FIG. 4).

Die Vorschubeinrichtung 29 ist an einem ersten Schlitten 36 angebracht, der auf einem Schlitten 37 in Vertikalrichtung verschiebbar ist. Der zweite Schlitten 37 ist an einer maschinenfesten Führung 38 in Längsrichtung verschiebbar. Die Verschiebebewegung erfolgt in bekannter Weise mit Hilfe nicht veranschaulichter Motoren und kann entsprechend einer zuvor eingegebenen Programmierung vollautomatisch erfolgen.The feed device 29 is attached to a first carriage 36, which is displaceable in the vertical direction on a carriage 37. The second carriage 37 can be moved in the longitudinal direction on a machine-fixed guide 38. The displacement movement takes place in a known manner with the help of motors, not shown, and can be carried out fully automatically in accordance with a previously entered programming.

Im Bereich des Eingangsfeldes 20 besitzt die Schneidvorrichtung 17 eine Führungsbahn 39, die zwei Führungen 40 und 41 für die Transportplatte 8 und weitere Stützschienen 42 aufweist. Ein Kupplungsstück 43 vermag in eine Vertiefung an der Unterseite der Transportplatte 8 einzugreifen und diese aus der Übergabestation 11 auf die Schneidvorrichtung 17 zu ziehen. Zu diesem Zweck ist das Kupplungsstück 43 mit Hilfe eines Stellmotors schwenkbar in einem Gehäuse 44 gehalten, das an einer Kette 45 befestigt ist. Diese läuft über ein Antriebsrad 46, das von einem Motor 47 angetrieben ist, und ein Umlenkrad 48. Damit die Transportplatte 8 über die Führungsschiene 15 hinweg bewegt werden kann, ist eine Absenkvorrichtung 49 vorgesehen, die aus einer pneumatischen oder hydraulischen Kolben-Zylinder-Einheit mit einem Stößel 50 besteht, der die Führungsschiene 15 niederdrückt.In the area of the input field 20, the cutting device 17 has a guide track 39 which has two guides 40 and 41 for the transport plate 8 and further support rails 42. A coupling piece 43 can engage in a recess on the underside of the transport plate 8 and pull it out of the transfer station 11 onto the cutting device 17. For this purpose, the coupling piece 43 is pivotally held in a housing 44, which is fastened to a chain 45, by means of a servomotor. This runs over a drive wheel 46, which is driven by a motor 47, and a deflection wheel 48. In order that the transport plate 8 can be moved over the guide rail 15, a lowering device 49 is provided, which consists of a pneumatic or hydraulic piston-cylinder unit with a plunger 50, which depresses the guide rail 15.

Die Schneidvorrichtung 17 ist mit einem Seitenanschlag 51 versehen, dem ein Näherungsinitiator 52 zugeordnet ist. Sobald sich die Stirnseite des ersten Blockstreifens diesem Seitenanschlag 51 nähert, spricht der Näherungsinitiator 52 an und schaltet den Motor 47 ab. Die Blockstreifen 4 kommen daher in unmittelbarer Nähe oder in Anlage am Seitenanschlag 51 zur Ruhe. Der Seitenanschlag 51 ist mit Hilfe einer Schrägfläche 8a an der Vorderkante der Transportplatte 8 anhebbar, damit die Transportplatte 8 unter dem Seitenanschlag hindurch bewegt werden kann. Wenn nun die Vorschubeinrichtung 29 in Tätigkeit gesetzt wird, nehmen lediglich die wirksamen Segmente 30 das vor ihnen befindliche gestapelte Gut mit, im vorliegenden Ausführungsbeispiel lediglich drei Blockstreifen 4. Sobald die erste Schneidposition erreicht ist, wird das Lineal 26 auf dem Ausgangsfeld 22 mit Hilfe seiner Stellmotoren 53 mehrfach entgegen der Vorschubrichtung bewegt, um die Blockstreifen 4 in Längsrichtung, also an den wirksamen Segmenten 30 der Vorschubeinrichtung 29, auszurichten. Außerdem wird der Andruckschieber 25, der ebenfalls mit Gleitfingern 54 versehen ist, parallel zur Schnittlinie 18 bewegt, um die vorgeschobenen Blockstreifen 4 gegen den Seitenanschlag 51 zu drücken und hierdurch eine Querausrichtung zu bewirken. Vor dieser Andruckbewegung kann der Andruckschieber 25 noch unter dem Preßbalken 24 dichter an die Schnittlinie 18 heranbewegt werden, wie dies gestrichelt in Fig. 1 veranschaulicht ist. Der Abstand zwischen Seitenanschlag 51 und Andruckschieber 25 ist größer als die wirksame Breite der Vorschubeinrichtung 29.The cutting device 17 is provided with a side stop 51, to which a proximity initiator 52 is assigned. As soon as the end face of the first block strip approaches this side stop 51, the proximity initiator 52 responds and switches off the motor 47. The block strips 4 therefore come in the immediate vicinity or in System at side stop 51 to rest. The side stop 51 can be raised by means of an inclined surface 8a on the front edge of the transport plate 8, so that the transport plate 8 can be moved under the side stop. If the feed device 29 is now activated, only the active segments 30 take the stacked goods in front of them, in the present exemplary embodiment only three block strips 4 Servomotors 53 are moved several times against the feed direction in order to align the block strips 4 in the longitudinal direction, that is to say on the active segments 30 of the feed device 29. In addition, the pressure slide 25, which is also provided with sliding fingers 54, is moved parallel to the cutting line 18 in order to press the advanced block strips 4 against the side stop 51 and thereby effect a transverse alignment. Before this pressure movement, the pressure slide 25 can still be moved closer to the cutting line 18 under the pressure beam 24, as is illustrated in broken lines in FIG. 1. The distance between the side stop 51 and the pressure slide 25 is greater than the effective width of the feed device 29.

Der Andruckschieber 25 wird in Querrichtung durch einen Stellmotor 55 betätigt, der seinerseits mit Hilfe eines Stellmotors 56 in Vorschubrichtung verlagerbar ist. Dieser ist mit einem Schlitten 58 verbunden, der längs einer maschinenfesten Querführung 59 verschiebbar ist.The pressure slide 25 is actuated in the transverse direction by a servomotor 55, which in turn can be displaced in the feed direction with the aid of a servomotor 56. This is connected to a carriage 58 which can be moved along a machine-fixed transverse guide 59.

Die Andruckbewegung des Lineals 26 beziehungsweise des Andruckschiebers 25 kann mehrfach hintereinander erfolgen, wenn es die Beschaffenheit des zu schneidenden Materials erfordert. Die Wirkfläche dieser Andruckelemente kann mit einer elastischen Auflage versehen sein.The pressure movement of the ruler 26 or the pressure slide 25 can be carried out several times in succession if the nature of the material to be cut requires it. The active surface of these pressure elements can be provided with an elastic pad.

An dem gleichen Schlitten 58 ist ein Niederhalter 60 befestigt, der mit Hilfe eines Stellmotors 61 vertikal verlagert und belastet werden kann. Er wird schon vor der ersten Vorschubbewegung der Vorschubeinrichtung 29 auf den ersten der nicht zu verschiebenden Blockstreifen 4a niedergedrückt, sodaß die in der Belade- und Ausrichtstation 7 erzielte Ausrichtung dieser Blockstreifen erhalten bleibt.A hold-down device 60 is fastened to the same carriage 58 and can be shifted and loaded vertically with the aid of a servomotor 61. It is pressed down on the first of the block strips 4a not to be displaced before the first feed movement of the feed device 29, so that the alignment of these block strips achieved in the loading and aligning station 7 is maintained.

Die unwirksam gemachten Segmente 30 der Vorschubeinrichtung 29 haben eine solche Höhenlage beziehungsweise sind so weit nach hinten verlagert, daß sie weder mit dem Andruckschieber 25 noch mit dem Niederhalter 60 und den zugehörigen Antrieben kollidieren.The rendered ineffective segments 30 of the feed device 29 have such a high position or are displaced so far to the rear that they do not collide with the pressure slide 25 nor with the hold-down device 60 and the associated drives.

Damit der Messerbalken 23 seinen Arbeitshub durchführen kann, ist der Seitenanschlag 51 unterbrochen, wobei die Lücke durch ein Füllstück 62 ausgefüllt ist, damit ein einwandfreies Ausrichten in Querrichtung möglich ist. Dieses Füllstück 62 ist mit dem Messerbalken 23 aus der in Fig. 7 voll ausgezogen dargestellten Lage 62a mit dem Messerbalken 23 in die strichpunktiert gezeichnete Lage 62b absenkbar. Es verhindert, daß das Schneidmesser, das eine Bewegungskomponente in Richtung der Schnittlinie hat, den gerade geschnittenen Stapel seitlich mitnimmt. Nach dem Schnitt wird das Füllstück noch weiter in die gepunktet gezeichnete Stellung 62c abgesenkt, in der es sich vollständig unterhalb der Tischfläche 19 befindet. Auf diese Weise behindert das Füllstück das Abnehmen des soeben geschnittenen Stapels nicht, auch wenn dieser nur aus Blättern sehr kleiner Größe besteht. Die Bewegung des Füllstücks 62 wird durch einen Stellmotor 63 bewirkt.In order for the cutter bar 23 to be able to carry out its working stroke, the side stop 51 is interrupted, the gap being filled by a filler piece 62 so that a correct alignment in the transverse direction is possible. This filler 62 can be lowered with the knife bar 23 from the position 62a shown in full lines in FIG. 7 with the knife bar 23 into the position 62b shown in broken lines. It prevents the cutting knife, which has a component of movement in the direction of the cutting line, from taking the stack that has just been cut laterally. After the cut, the filler is inserted further into the dotted position 62c lowered, in which it is located completely below the table surface 19. In this way, the filler does not hinder the removal of the stack just cut, even if it consists only of sheets of very small size. The movement of the filler 62 is effected by a servomotor 63.

Wie Fig. 6 zeigt, ist ein Ausstoßer 64 mittels eines Stellmotors 65 in einen Querkanal 66 absenkbar. Das Ganze ist an einem Schlitten 67 befestigt, der motorisch längs einer maschinenfesten Querführung 68 bewegbar ist. Der Querkanal wird durch das Lineal 26 und durch ein zweites Lineal 69 begrenzt. Dieses zweite Lineal bewegt sich in die in Fig. 6 veranschaulichte Stellung, wenn die das Ausgangsfeld 22 bildende Tischplatte 70 zur Erzeugung eines Spaltes 73 zwischen sich und dem Arbeitsfeld 21 in die in Fig. 1 gestrichelt gezeichnete Stellung vorbewegt worden ist, wie dies in Verbindung mit den Fig. 1 bis 18 noch näher erläutert wird. Durch den Querkanal 66 können dann die fertigen Stapel vollautomatisch dem Bündelautomaten 27 oder dem Stanzautomaten 28 zugeführt werden.As shown in FIG. 6, an ejector 64 can be lowered into a transverse channel 66 by means of a servomotor 65. The whole is fastened to a slide 67 which can be moved by a motor along a transverse guide 68 fixed to the machine. The transverse channel is delimited by the ruler 26 and by a second ruler 69. This second ruler moves into the position illustrated in FIG. 6 when the table top 70 forming the output field 22 has been advanced into the position shown in dashed lines in FIG. 1 to create a gap 73 between it and the working field 21, as in connection with this is explained in more detail with FIGS. 1 to 18. The finished stack can then be fed fully automatically to the bundling machine 27 or the punching machine 28 through the transverse channel 66.

Nachstehend wird die Abfolge der einzelnen Bewegungen in Verbindung mit dem Schneidvorgang anhand der Fig. 8 bis 18 näher erläutert.The sequence of the individual movements in connection with the cutting process is explained in more detail with reference to FIGS. 8 to 18.

Gemäß Fig. 8 wird ein Blockstreifen 4 durch das Lineal 26 gegen die Segmente 30 der Vorschubvorrichtung 29 gedrückt, wobei dieses Lineal aus der strichpunktierten Stellung eine Bewegung in Richtung des Pfeiles a, gegebenenfalls mehrfach hintereinander, durchführt. Kurz danach erfolgt das Querausrichten mit Hilfe des Andruckschiebers 25. Alsdann wird der hier nicht veranschaulichte Preßbalken 24 niedergedrückt.8, a block strip 4 is pressed by the ruler 26 against the segments 30 of the feed device 29, this ruler executing a movement in the direction of the arrow a from the dash-dotted position, possibly several times in succession. Shortly thereafter, the transverse alignment takes place with the aid of the pressure slide 25. Then the press beam 24, which is not illustrated here, is pressed down.

Es folgt, wie Fig. 9 zeigt, der Schnitt mit Hilfe des sich in Richtung des Pfeiles b bewegenden Messerbalkens 23. Gleichzeitig wird das Lineal 26 in Richtung des Pfeiles c in die in Fig. 8 strichpunktierte Stellung zurückbewegt und um eine untere horizontale Achse in Richtung des Pfeiles d gekippt.9, the section follows with the aid of the knife bar 23 moving in the direction of arrow b. At the same time, the ruler 26 is moved back in the direction of arrow c to the position shown in broken lines in FIG. 8 and about a lower horizontal axis in Tilted in the direction of arrow d.

Wenn nun der Schnitt gemäß Fig. 10 durchgeführt worden ist, ergibt sich ein Stapel 71, der in Folge der Form des Messerbalkens einen parallelogrammförmigen Querschnitt einnimmt. Er wird durch das Lineal 26 abgestützt.If the cut according to FIG. 10 has now been carried out, a stack 71 results which, owing to the shape of the knife bar, assumes a parallelogram-shaped cross section. It is supported by the ruler 26.

Gemäß Fig. 11 wird die Tischplatte 70 um den Betrag x, beispielsweise 1 mm, von der Höhe der Schneidleiste 72 unterhalb des Messerbalkens 23 angehoben. Hierdurch wird das unterste Blatt sicher von dieser Schneidleiste getrennt.11, the table top 70 is raised by the amount x, for example 1 mm, from the height of the cutting bar 72 below the cutter bar 23. This will safely separate the bottom sheet from this cutting bar.

Nunmehr wird die Tischplatte 70 entsprechend Fig. 12 zur Bildung eines Spaltes 73 in Richtung des Pfeiles e vorgerückt. Gleichzeitig kippt das Lineal 69, das eine Ruhestellung unterhalb der Tischplatte 70 eingenommen hatte, in Richtung des Pfeiles f nach oben. Außerdem kippt das Lineal 26 in Richtung des Pfeiles g zurück in die Vertikallage. Infolgedessen wird der Stapel 71 aufgerichtet.The table top 70 is now advanced according to FIG. 12 to form a gap 73 in the direction of the arrow e. At the same time, the ruler 69, which had assumed a rest position below the table top 70, tilts upward in the direction of the arrow f. In addition, the ruler 26 tilts back into the vertical position in the direction of the arrow g. As a result, the stack 71 is erected.

Nunmehr senkt sich gemäß Fig. 13 der Ausstoßer 64 in Richtung des Pfeiles h in den zwischen den Linealen 69 und 26 gebildeten Querkanal 27. Hierbei kann das Lineal 26 in Richtung des Pfeiles i geringfügig vom Stapel 71 abgehoben werden. Der Stapel 71 kann dann dem Bündelautomaten 27 oder dem Stanzautomaten 28 automatisch zugeführt werden.13, the ejector 64 lowers in the direction of the arrow h into the transverse channel 27 formed between the rulers 69 and 26. Here, the ruler 26 can be slightly lifted off the stack 71 in the direction of the arrow i. The stack 71 can then be automatically fed to the automatic bundling machine 27 or the automatic punching machine 28.

Nunmehr sei angenommen, daß kein Nutzschnitt, sondern ein Zwischenschnitt durchgeführt werden soll. Die Segmente 30 werden in Richtung des Pfeiles k bewegt und schieben die Blockstreifen 4 um die Dicke des Zwischenschnitts nach vorn (Fig. 14).Now it is assumed that an intermediate cut should not be made, but an intermediate cut. The segments 30 are moved in the direction of the arrow k and push the block strips 4 forward by the thickness of the intermediate cut (FIG. 14).

Wird nun, wie es Fig. 15 zeigt, der Messerbalken 23 wiederum in Richtung des Pfeiles b nach unten bewegt, fällt das abgetrennte Material 74 durch den Spalt 73 nach unten, vorzugsweise in einen dort befindlichen Sammelbehälter. Gleichzeitig ist das Lineal 69 in eine zur Schrägfläche 75 des Messerbalkens 23 etwa senkrechte Lage gekippt und eine Abstreifleiste 76 mit Hilfe eines Stellmotors 77 in Richtung des Pfeiles l gegen diese Schrägfläche 75 bewegt worden.If, as shown in FIG. 15, the cutter bar 23 is again moved downward in the direction of the arrow b, the material 74 which has been separated falls down through the gap 73, preferably into a collecting container located there. At the same time, the ruler 69 has been tilted into a position approximately perpendicular to the inclined surface 75 of the cutter bar 23 and a squeegee 76 has been moved against this inclined surface 75 with the aid of a servomotor 77 in the direction of arrow 1.

Infolgedessen wird das gesamte abgetrennte Material 74 sicher von der Schrägfläche 75 des Messerbalkens und des Messers abgestreift, wenn sich der Messerbalken 23 wieder nach oben bewegt (Fig. 16).As a result, all of the separated material 74 is securely stripped from the inclined surface 75 of the cutter bar and the knife when the cutter bar 23 moves up again (FIG. 16).

Es erfolgt eine weitere Vorschubbewegung des Blockstreifens 4 mit Hilfe der Segmente 30 in Richtung des Pfeiles k, so daß der Rest des abgetrennten Materials 74 durch den Spalt 73 fällt. Das Lineal 69 kehrt in seine Ruhelage zurück (Fig. 17) und die Tischplatte 70 schließt den Spalt 73 (Fig. 18).There is a further feed movement of the block strip 4 with the aid of the segments 30 in the direction of the arrow k, so that the rest of the separated material 74 falls through the gap 73. The ruler 69 returns to its rest position (FIG. 17) and the table top 70 closes the gap 73 (FIG. 18).

Nunmehr kann ein neues Arbeitsspiel beginnen, bei dem die Segmente 30 die Blockstreifen wieder bis in die Nähe des Lineals 26 vorschieben. Es folgt ein neuer Ausrichtvorgang, ein neuer Schnitt und so fort.A new work cycle can now begin, in which the segments 30 advance the block strips again into the vicinity of the ruler 26. A new alignment process follows, a new cut and so on.

Wenn der erste Blockstreifen 4 - oder im vorliegenden Ausführungsbeispiel die ersten drei Blockstreifen - auf diese Weise in kleine Stapel 72 aufgeteilt worden sind, wird der Motor 47 erneut erregt, so daß die Transportplatte 8 weiter nach links in Fig. 5 vorrückt. Sobald die Stirnfläche des Blockstreifens 4a vom Näherungsinitiator 52 erfaßt wird, bleibt die Transportplatte 8 stehen und es kann ein erneuter Vorschub mit Hilfe der Vorschubeinrichtung 29 erfolgen. Zu diesem Zweck muß die Vorschubeinrichtung wieder in die in Fig. 1 veranschaulichte Ruhelage zurückgeführt werden. Dies kann erfolgen, bevor die Transportplatte 8 weiterbewegt wird oder gleichzeitig damit, wenn nämlich die Vorschubeinrichtung 29 in ihrer vorderen Stellung mit Hilfe des Schlittens 27 angehoben und über die Blockstreifen hinweg in die Ausgangslage zurückbewegt wird. Alsdann erfolgt ein neuer Vorschub mittels der Vorschubeinrichtung 29. Dieses Arbeitsspiel wiederholt sich, bis sämtliche Blockstreifen abgearbeitet sind. Die Transportplatte 8 kann dann auf eine leere Etage des Pufferregals 12 mit Hilfe des Kupplungsstücks 44 zurücktransportiert werden.If the first block strip 4 - or in the present exemplary embodiment the first three block strips - have been divided into small stacks 72 in this way, the motor 47 is excited again so that the transport plate 8 advances further to the left in FIG. 5. As soon as the end face of the block strip 4a is detected by the proximity initiator 52, the transport plate 8 stops and a new feed can be carried out with the aid of the feed device 29. For this purpose, the feed device must be returned to the rest position illustrated in FIG. 1. This can take place before the transport plate 8 is moved further or simultaneously with it, namely when the feed device 29 is raised in its front position with the aid of the carriage 27 and moved back over the block strips into the starting position. Then a new feed takes place by means of the feed device 29. This work cycle is repeated until all block strips have been processed. The transport plate 8 can then be transported back to an empty floor of the buffer shelf 12 with the aid of the coupling piece 44.

Die zweite Schneidvorrichtung 17 und die Zuführanordnung mit der Transportplatte 8 können weitgehend automatisch betrieben werden. Infolgedessen genügt für die Herstellung von Etiketten eine einzige Bedienungsperson, die an der Schneidvorrichtung 1 die Blockstreifen 4 herstellt, sie auf der Belade- und Ausrichtstation 7 richtig plaziert und im übrigen lediglich den automatischen Ablauf der Anlage überwacht.The second cutting device 17 and the feed arrangement with the transport plate 8 can be operated largely automatically. As a result, a single operator is sufficient for the production of labels, who produces the block strips 4 on the cutting device 1, places them correctly on the loading and aligning station 7 and otherwise only monitors the automatic process of the system.

Von der beschriebenen Ausführungsform kann in vielfacher Hinsicht abgewichen werden, ohne den Grundgedanken der Erfindung zu verlassen. Beispielsweise können die leeren Transportplatten 8 auf der der Übergabestation 11 abgewandten Seite des Eingangsfeldes 20 abgenommen werden.There can be deviations from the described embodiment in many respects without departing from the basic idea of the invention. For example, the empty transport plates 8 on the side of the input field 20 facing away from the transfer station 11 can be removed.

Wenn sprödes Stapelgut geschnitten werden soll, kann das Lineal 26 zusätzlich federnde Niederhalteelemente 78 tragen, wie dies in Fig. 9 dargestellt ist. Auf diese Weise kann auch bei sprödem Blattmaterial sichergestellt werden, daß die einzelnen Blätter nicht wegspringen. Wenn die Niederhalteelemente 78 nicht benötigt werden, können sie weggeklappt werden (Fig. 10). Des weiteren kann das Lineal 26 mit einem Näherungsinitiator 79 versehen sein (Fig. 18), der anspricht, wenn die Vorderseite 80 des Blockstreifens 4 dem Lineal 26 näher kommt als es einem vorgegebenen Grenzabstand entspricht. In diesem Fall wird die Vorschubeinrichtung 29 abgeschaltet, um eine Fehlbedienung zu vermeiden. Darüberhinaus kann die Vorschubeinrichtung mit einer Rutschkupplung versehen sein, die anspricht, wenn die Blockstreifen 4 beim Vorschub einen Widerstand finden.If brittle stacked goods are to be cut, the ruler 26 can additionally carry resilient hold-down elements 78, as shown in FIG. 9. In this way it can be ensured, even in the case of brittle sheet material, that the individual sheets do not jump away. If the hold-down elements 78 are not required, they can be folded away (FIG. 10). Furthermore, the ruler 26 can be provided with a proximity initiator 79 (FIG. 18), which responds when the front side 80 of the block strip 4 comes closer to the ruler 26 than corresponds to a predetermined limit distance. In this case, the feed device 29 is switched off in order to avoid incorrect operation. In addition, the feed device can be provided with a slip clutch, which responds when the block strips 4 find resistance during the feed.

Die für den automatischen Ablauf erforderlichen Stellmotoren sind hier als pneumatische oder hydraulische Kolben-Zylinder-Einheiten dargestellt. Die Stellmotoren können aber auch mechanisch, elektrisch oder auf sonstige bekannte Weise betrieben werden.The servomotors required for the automatic process are shown here as pneumatic or hydraulic piston-cylinder units. The servomotors can also be operated mechanically, electrically or in any other known manner.

Claims (22)

  1. Device for cutting stacked sheet-like material made of paper or film material, with a table surface (19) which comprises a working area (21) above which are located a cutting knife (23) and a pressure bar (24), behind it an input area (20) for receiving the material to be cut and in front of it an output area (22) for receiving the cut material, with a side stop (51) for alignment of the material to be cut and with an advance mechanism (29) for the material to be cut, characterised in that a contact pressure slide (25) movable automatically in the direction of the cutting line (18) is provided for pressing the material (4) to be cut against the side stop (51) and in that the working width of the advance mechanism (29) is smaller than the distance between side stop (51) and contact pressure slide (25).
  2. Device according to claim 1, characterised in that the advance mechanism (29) is divided in the direction of the cutting line (18) into separate segments (30), the advance function of which can be made inoperative at least over part of the width of the cutting knife.
  3. Device according to claim 1 or 2, characterised in that the segments (30) are displaceable from a working position in which they entrain the material (4) to be cut, into an inoperative position.
  4. Device according to claim 3, characterised in that the segments (30) are pivotable upwards and rearwards about a horizontal shaft (32) located behind them in the working position.
  5. Device according to any of claims 1 to 4, in which the advance mechanism (29) comprises teeth (35) which engage in grooves (34) of the pressure bar (24) in the foremost position, characterised in that the segments (30) have a spacing corresponding to the tooth pitch.
  6. Device according to any of claims 1 to 5, characterised in that the contact pressure slide (25) is located above the working area (21) behind the pressure bar working plane.
  7. Device according to claim 6, characterised in that the contact pressure slide (25) while the pressure bar (24) is raised is movable first under it and then in the direction of pressing.
  8. Device according to any of claims 1 to 7, characterised in that behind the contact pressure slide (25) is located a supply track (39) extending transversely to the direction of advance, for the material to be cut.
  9. Device according to claim 8, characterised in that the input area (20) is formed by a transport plate (8) movable transversely to the direction of advance.
  10. Device according to any of claims 1 to 9, characterised in that a hold-down device (60) extending in the direction of advance is provided behind the contact pressure slide (25).
  11. Device according to any of claims 1 to 10, characterised in that the advance mechanism (29) can be lifted in its entirety and returned rearwards in the lifted state.
  12. Device according to any of claims 9 to 11, characterised in that the side stop (51) can be lifted for the purpose of letting the transport plate (8) through.
  13. Device according to any of claims 1 to 12, characterised in that in the region of the cutter bar (23), a filler piece (62) of the side stop (51) can be moved downwards with the cutter bar (23) and during advance movement can be lowered to below the table surface (19).
  14. Device for cutting stacked sheet-like material made of paper or film material according to any of claims 1 to 13, characterised by a straightedge (26) which extends in the direction of the cutting line (18) and is arranged on the output area (22) and which has a limited stroke in a direction opposite the direction of advance, in order to press the material (4) to be cut against the advance mechanism.
  15. Device according to claim 14, characterised in that the straightedge (26) is tiltable about a lower horizontal shaft in order to support the stack (71) of cut material during cutting and then set it upright again.
  16. Device according to claim 14 or 15, characterised in that hold-down elements (78) which are applied resiliently to the material to be cut are mounted on the straightedge (26).
  17. Device according to any of claims 1 to 16, in which the output area (22) is movable relative to the working area (21) to form a gap (73), characterised by a transverse channel (66) on the output area (22) which leads to a further processing station (27, 28) and is formed by a first straightedge (26) mounted on the output area (22) and a second straightedge (69) located therebehind which can be moved into its working position after opening of the gap (73), and by an ejector (64) which is movable along the transverse channel.
  18. Device according to claim 17, characterised in that the second straightedge (69) is arranged under the output area (22) in its inoperative position and is capable of being moved through the gap (73) into its working position.
  19. Device according to claim 18, characterised in that the second straightedge (69) is provided with a stripping bar (76) and controlled in such a way that during upward movement of the cutter bar (23) the stripping bar wipes along the latter.
  20. Device according to claim 19, characterised in that the stripping bar (76) in the working position is displaceable in a direction towards the sloping surface (75) of the cutter bar (23).
  21. Device according to any of claims 2 to 20, characterised in that the segments (30) of the advance mechanism (29) and/or the side stop (51) and/or the contact pressure slide (25) comprise vertically movable sliding fingers (33, 54) resting on the table surface.
  22. Device according to any of claims 1 to 21, characterised by use as a second cutting device (17) of a system in which a first cutting device (1) is designed to produce block strips (4) by parallel cuts, wherein in the second cutting device (17), by a number of block strips arranged adjacent to each other in the direction of the cutting line (18), only a fractional number of the operative segments (30) of the advance mechanism (29) can be entrained.
EP87105449A 1986-04-19 1987-04-13 Apparatus for cutting piles of sheets Expired - Lifetime EP0242763B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3613316A DE3613316C1 (en) 1986-04-19 1986-04-19 Device for cutting stacked, sheet-like material
DE3613316 1986-04-19

Publications (3)

Publication Number Publication Date
EP0242763A2 EP0242763A2 (en) 1987-10-28
EP0242763A3 EP0242763A3 (en) 1989-12-06
EP0242763B1 true EP0242763B1 (en) 1993-03-03

Family

ID=6299101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105449A Expired - Lifetime EP0242763B1 (en) 1986-04-19 1987-04-13 Apparatus for cutting piles of sheets

Country Status (5)

Country Link
US (1) US4850257A (en)
EP (1) EP0242763B1 (en)
JP (1) JPS62251097A (en)
DE (2) DE3613316C1 (en)
ES (1) ES2039370T3 (en)

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DE3613316C1 (en) * 1986-04-19 1988-02-18 Wolfgang Mohr Device for cutting stacked, sheet-like material
DE3921886A1 (en) * 1989-07-04 1991-01-17 Wolfgang Mohr DEVICE FOR CUTTING STACKED, SHEET-SHAPED GOODS
DE3939596A1 (en) * 1989-11-30 1991-06-06 Wolfgang Mohr DEVICE FOR CUTTING STACKED, SHEET-SHAPED GOODS
DE4002102A1 (en) * 1990-01-25 1991-08-08 Wolfgang Mohr Guillotine for trimming piles of sheet material - has work table with vertically operating cutting and angled fence in line with cutter blade
DE4002101A1 (en) * 1990-01-25 1991-08-08 Wolfgang Mohr Guillotine for piles of sheet material
DE4013352A1 (en) * 1990-04-25 1991-11-07 Wolfgang Mohr DEVICE FOR CUTTING STACKED, SHEET-SHAPED GOODS
DE4013418A1 (en) * 1990-04-26 1991-11-07 Wolfgang Mohr METHOD AND DEVICE FOR CONVERTING STACKED, SHEET-SHAPED GOODS FROM AN OUTPUT FIELD TO AN INPUT FIELD OF A CUTTING MACHINE
JP2694585B2 (en) * 1991-12-19 1997-12-24 富士写真フイルム株式会社 Cutting device, air venting device and sheet overlap prevention device
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US5483856A (en) * 1992-05-05 1996-01-16 Marquip, Inc. Apparatus and method for slitting corrugated paperboard boxes
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US5475967A (en) * 1995-03-28 1995-12-19 Levi; Hans L. Apparatus and method for slitting boxes
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WO2001049464A1 (en) * 1999-12-29 2001-07-12 Kba-Giori S.A. Method for cutting bond papers
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JP2002003069A (en) * 2000-06-26 2002-01-09 Konica Corp Paper cutting device and image forming device
EP1172185A1 (en) * 2000-07-14 2002-01-16 Adolf Mohr Maschinenfabrik GmbH & Co. KG Device for cutting sheet material
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JP3871332B2 (en) * 2002-10-29 2007-01-24 日東電工株式会社 Lamination sheet cutting method
DE502004007666D1 (en) 2004-05-04 2008-09-04 Mohr Adolf Maschf Arrangement for unloading and sorting pallets of sheets of sheet material
DE502006008549D1 (en) * 2006-04-04 2011-02-03 Mueller Martini Holding Ag Cutting device with a blower supplying chip removal device
JP4152996B2 (en) * 2006-05-10 2008-09-17 ホリゾン・インターナショナル株式会社 Pressing device
DE102012101193B4 (en) 2012-02-08 2018-08-09 Baumann Maschinenbau Solms Gmbh & Co. Kg Process for cutting clippings and cutting equipment
CN104626237B (en) * 2014-12-06 2018-01-19 秦皇岛博硕光电设备股份有限公司 It has been provided with the guillotine of material device
CN107662231A (en) * 2017-10-31 2018-02-06 安徽飞凯电子技术有限公司 A kind of rock cotton board cutting machine
WO2019116580A1 (en) * 2017-12-15 2019-06-20 三菱重工機械システム株式会社 Cardboard box dividing device and cardboard box manufacturing device
DE102018108555B4 (en) 2018-01-25 2023-11-23 Baumann Maschinenbau Solms Gmbh & Co. Kg System and method for processing or processing a batch
DE102018009238A1 (en) * 2018-11-23 2020-05-28 Kocher-Plastik Maschinenbau Gmbh Device for preparing plastic containers for their use
CN109500851B (en) * 2018-12-13 2024-04-30 佛山科学技术学院 Paper cutting machine
CN110883808B (en) * 2019-12-12 2021-08-10 江西明辉环保科技有限公司 Packing material polyethylene foam plastic circle cutting machine
DE102020111448A1 (en) 2020-04-27 2021-10-28 Baumann Maschinenbau Solms Gmbh & Co.Kg Device and method for handling a stack of sheet-like material
CN112372732B (en) * 2020-09-30 2022-11-11 合肥市航拯工业设计有限公司 Slicing and sorting device for pumpkin finish machining and working method
CN114523503A (en) * 2022-01-14 2022-05-24 邹小敏 Cotton slide opening of steel structure building glass cuts device
CN115319934A (en) * 2022-07-13 2022-11-11 山东润马光能科技有限公司 Monocrystalline silicon slicing device for photovoltaic panel production

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Also Published As

Publication number Publication date
JPS62251097A (en) 1987-10-31
EP0242763A3 (en) 1989-12-06
DE3613316C1 (en) 1988-02-18
DE3784365D1 (en) 1993-04-08
US4850257A (en) 1989-07-25
ES2039370T3 (en) 1993-10-01
EP0242763A2 (en) 1987-10-28
JPH046514B2 (en) 1992-02-06

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