EP0590273A1 - Méthode et dispositif pour optimiser la course de l'outil dans une machine de coupe - Google Patents

Méthode et dispositif pour optimiser la course de l'outil dans une machine de coupe Download PDF

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Publication number
EP0590273A1
EP0590273A1 EP93112528A EP93112528A EP0590273A1 EP 0590273 A1 EP0590273 A1 EP 0590273A1 EP 93112528 A EP93112528 A EP 93112528A EP 93112528 A EP93112528 A EP 93112528A EP 0590273 A1 EP0590273 A1 EP 0590273A1
Authority
EP
European Patent Office
Prior art keywords
cutting knife
cut
cutting
press
press beam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93112528A
Other languages
German (de)
English (en)
Other versions
EP0590273B1 (fr
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
Individual
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
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Publication of EP0590273A1 publication Critical patent/EP0590273A1/fr
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Publication of EP0590273B1 publication Critical patent/EP0590273B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/08—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/42—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between work feed and clamp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0476—Including stacking of plural workpieces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4645—With means to clamp work during dwell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/531—With plural work-sensing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/566—Interrelated tool actuating means and means to actuate work immobilizer
    • Y10T83/5669—Work clamp
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/748—With work immobilizer
    • Y10T83/7487—Means to clamp work
    • Y10T83/7547—Liquid pressure actuating means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/748—With work immobilizer
    • Y10T83/7487—Means to clamp work
    • Y10T83/758—With means to adjust clamp position or stroke

Definitions

  • the invention relates to a method and a device for optimizing the cutting process in a cutting machine, in particular in a cutting machine for cutting stacked, sheet-like material made of paper, cardboard or the like.
  • a hydraulically actuated press beam is lowered onto the goods before cutting the goods on a table of the cutting machine and then a cutting knife arranged adjacent to the press beam is lowered perpendicularly to the table surface receiving the goods and thereby cutting the goods.
  • the cutting knife and the press beam are raised again, the press beam with its press beam lower edge of the cutting edge of the cutting knife runs after.
  • the wake of the press beam ensures that the cutting edge of the cutting knife is deflected from the press beam. It is therefore impossible for an operator to injure himself on the cutting knife.
  • the press beam is only lifted when the cutting knife has been moved into its invariable upper end position; the press beam is also raised to a fixed upper end position.
  • the upper end position of the cutting knife and press beam is dimensioned so that it is slightly larger than the maximum possible insertion height of the material to be cut.
  • a disadvantage of such a cutting machine is the idle time of the cutting knife when material with a low insert height is to be cut. So there is a considerable idle time until the cutting knife is lowered from its upper end position to the material to be cut and can only then perform the actual cut. Raising the cutting knife after the cut to its upper end position also requires considerable idle time. The large idle times have an overall disadvantageous effect on the length of the cutting operations of the cutting machine if it is to be operated automatically.
  • the same disadvantage namely increasing the idle time, can also be seen in that the press beam must always be lowered from its upper end position or raised to its upper end position. This can be seen in particular from the point of view of the feed to be activated for the material to be cut, which is only started when the press beam has been raised completely.
  • the idle time of the cutting knife can be greater than the time required for feeding the material to be cut. The same applies to the idle time of the press beam.
  • DE-AS 11 90 431 for a cutting machine Paper, cardboard or the like which has a hydraulic knife drive and a press bar, proposed not to raise the cutting knife and the press bar unnecessarily, as is unavoidable in the mechanical drive. As soon as the cutting knife and the press bar have released the stack of material to be cut, the material feed can begin.
  • a switching device on cutting machines for paper, cardboard or the like which has a cutter bar with attached to this knife and a machine-controlled, automatic drive of the press beam.
  • a device which triggers its drive and is influenced by the rising cutter bar at a certain height is arranged. This is formed on the one hand by a switch with a switching roller and on the other hand by an inclined surface which guides the switching roller and controls the switch.
  • the pressing pressure in the cutting machine is released when the cutting meter leaves the stack during lifting, and the lifting movement of the pressing beam begins at this time.
  • the lifting movement of the press bar is thus matched to the lifting movement of the cutting knife, but not the lifting height of the press bar to the insertion height of the material to be cut.
  • a machine for cutting frozen goods is known, with a hydraulic or pneumatic drive for the vertical movement of the knife, which interacts with a shear bar.
  • the knife stroke is adjustable.
  • a height-adjustable limit switch is arranged in the effective range of a trigger element moved with the knife and is in operative connection with the hydraulic or pneumatic control. The limit switch is adjusted either manually or by means of a device which scans the height of the material to be cut.
  • the method for optimizing the cutting process in a cutting machine in which, prior to the cutting of stacked, sheet-shaped material on a table, a press bar is lowered onto it, and a cutting knife arranged adjacent to the press bar is lowered perpendicularly to the table surface receiving the goods and thereby separates the goods , furthermore, after the cut, the cutting knife and the press bar are raised again, the lifting edge of the press bar with the lower edge of the press bar following the cutting edge of the cutting knife, is characterized in that when the cutting knife is lifted after the cut, a defined distance of the cutting knife from the level of the material to be cut is detected is and the movement of the cutting knife at the height of the distance level or at a slightly higher level is terminated, the defined distance being detected by means of a detection element arranged in a stationary manner on the pressure beam, which element is raised when the cutting is raised knife detects the relative position of the press beam and cutting knife, and at the time of detecting the defined distance between the cutting knife and the level of the material to be cut or slightly delayed
  • a defined distance is understood to mean at least such a distance level between the cutting edge of the cutting knife and the level of the surface of the material to be cut, which assumes that the pressure beam is raised by a minimum distance which allows the material to be cut to be advanced by means of the feed unit and also ensures that the press bar covers the cutting edge of the cutting knife. For whatever reason, should the press beam reach its upper end position at a somewhat greater distance from the material to be cut, the cutting knife must be raised accordingly. In addition, it may also be desirable not to place the cutting knife in its end position in relation to the end position of the press beam in such a way that the cutting edge of the cutting knife is just covered by the press beam, but rather that the press beam protrudes below the cutting knife over a greater width.
  • the cutting knife is raised after the cut only as far as is necessary for the next cutting process in terms of removing the pressure of the press beam and pushing the material to be cut.
  • the desired distance level depends primarily on the insertion height of the material currently being cut. Further essential features of the solution according to the invention are to be seen in the fact that the pressure beam lying on the material to be cut, depending on the current insertion height of the material to be cut, specifies the reference location for the cutting knife and furthermore does not have to be waited until the cutting knife is on which current insertion height has reached the upper end position, but it can already be raised during the movement of the cutting knife of the press beam.
  • the cutting knife is advantageously actuated hydraulically and the lifting movement of the cutting knife ends when the defined distance is detected or after a slight delay after the detection of the defined distance. It is thus provided that the cutting knife is only raised as far as the cut requires the insertion height of the material currently being cut and is also lowered from this height to the material to be cut before the next cut, provided the same insertion height is used.
  • the interposition of a timer is particularly important from the point that the material to be cut can have different hardnesses.
  • the cutting knife it is also conceivable for the cutting knife to be actuated mechanically by means of a crank mechanism, the defined distance being detected when the cutting knife is raised, the cutting knife being lowered after its upper dead center position has been exceeded and the lowering movement of the cutting knife being at the level of the distance or at a slightly higher level is ended.
  • the position of the crank mechanism can be represented by the position of a 360 ° counter that interacts with it, whereby a defined counter value corresponds to the defined distance when the cutting knife is raised and another defined counter value corresponds to the defined distance when the cutting knife is lowered.
  • the lowering movement of the cutting knife is ended; if necessary, the lowering movement can also be ended if a counting value that occurs earlier, which symbolizes a slightly higher distance level.
  • the lowering movement is terminated, for example, in that the drive, in particular an electric motor for the crank mechanism, is separated from the crank mechanism by means of a clutch and the crank mechanism is braked by means of a brake.
  • the movement of the cutting knife is advantageously terminated at a defined distance of the cutting knife from the stack level of 10 to 20 mm.
  • the cutting knife is thus at least 10 mm above the material to be cut with its cutting edge if the expansion of the material to be cut is not taken into account after lifting the press beam. If a timing element is provided, the defined distance should be chosen shorter so that the lifting movement of the cutting knife is terminated at a distance of 10 to 20 mm from the material to be cut.
  • the detection element arranged on the press beam should expediently detect the position of the cutting edge of the cutting knife. Since the cutting knife is generally moved in the pulling cut and the cutting edge of the cutting knife is only arranged parallel to the stack-receiving table surface at bottom dead center, the detection element should preferably cover the area of the lower cutting edge end. If the detection element is arranged at a distance from the active surface of the press beam, it is ensured that the cutting knife is basically covered by the press beam in its raised position.
  • the detection element can, for example, be created in such a way that it inductively determines the relative position of the press beam and cutting knife. This is useful because both the press bar and the cutting knife are made of magnetizable metal.
  • the feed unit for moving the material to be cut is activated at the beginning of the lifting movement of the press beam.
  • both the idle time of the cutting knife and that of the press beam are minimized.
  • the defined distance by which the press beam is raised advantageously corresponds to the defined distance by which the cutting knife is raised.
  • the prescribed influences from harder or softer material to be cut must be taken into account when determining the lifting movement of the press beam.
  • the lifting movement of the press beam is also ended in the press beam at a distance of 10 to 20 mm from the material to be cut.
  • the defined distance between the lower edge of the press beam and the upper edge of the material to be cut can be detected, for example, by means of a detection element which is arranged in a stationary manner on the press beam in its lifting direction. Due to the stationary arrangement of the detection element on the press beam, the latter moves the same path length and thus feels the position of the upper edge of the cutting stack, that is to say specifically the transition from the stack of material to be cut, to the air due to the arrangement following the pressing beam. As soon as the detection element detects the top edge of the material to be cut, the lifting movement of the press beam is terminated or a timer is activated to stop the lifting movement of the press beam. The latter leads to a defined overrun of the press beam.
  • the feed unit is activated in particular when the defined distance of the press beam from the material to be cut is detected.
  • a preferably designed device for cutting stacked, sheet-like material has a table for receiving the material to be cut, a feed unit for the material to be cut, a press bar that can be lowered onto the material to be cut, and a cutting knife that is arranged adjacent to the press bar and that can be moved perpendicular to the table surface that receives the material, whereby the device is characterized in that the press bar has on its side facing the cutting knife a detection element for detecting the relative position of the press bar and the cutting knife.
  • the detection element is advantageously designed as an inductive proximity switch or metal detector arranged at a distance from the active surface of the press beam, for detecting the cutting edge of the cutting knife.
  • the hydraulically actuated press beam should have, below and outside of its active surface which comes into contact with the material to be cut, a sensor which is active parallel to the active surface of the press beam and which detects the upper edge of the stack of material to be cut.
  • the sensor is advantageously designed as a light barrier, which has a light source and a photo cell as elements, which are arranged outside the table surface.
  • the pressure beam can thus be lowered onto the table surface without causing damage to the sensor in a table designed in the usual way.
  • the press beam and the cutting knife or the cutting knife holder are guided in a machine frame which has sensors at different distances from the table surface, each sensor being effective parallel to the table plane, for determining the height level of the upper edge of the material to be stacked, the lower edge of the press beam and the cutting edge of the cutting knife relative to the table surface.
  • these sensors are useful as light barriers educated.
  • Figures 1 and 2 show, in a highly simplified manner, the upper area of a face cutting machine for cutting paper, cardboard or the like.
  • the face cutting machine has a base frame, not shown, which receives a table 3 and the machine frame 9 which extends above the table and is designed as a portal frame.
  • the table 3 has a recessed in it over the entire width of the table 3 extending cutting bar 4.
  • a feed unit 2 with a feed saddle 2a extends over the entire width of the table 3. This can be moved in the direction of arrow C, which results in the basic direction of movement of the material to be cut during the cutting process.
  • a cutting knife 7 is arranged above the cutting bar 4. Shown in Figures 1 and 2 is the raised position of the cutting knife 7, from which it can be lowered in the direction of arrow D to the cutting bar 4. Adjacent to the cutting knife 7 there is a press beam 8 on the side facing the feed unit 2, which can also be lowered from the raised position shown in FIGS. 1 and 2 in the direction of arrow D onto the material 1 to be cut.
  • Cutting knife 7 and press beam 8 are guided in the portal frame 9 of the face cutting machine which surrounds them at the top and on the sides.
  • the cutting knife 7 is connected by means of screws 6 to the cutting knife holder 11 designed as a cutter bar.
  • the knife 7, the cutting edge 7a of which is slightly inclined from the horizontal, can be moved in a pulling cut in a known manner by means of a crank mechanism (not shown).
  • the drive of the crank mechanism this takes place via an electric motor, a clutch is arranged between the electric motor and the crank mechanism and a brake can be brought into engagement with the crank mechanism.
  • the respective position of the crank mechanism can be represented by means of a counting disc connected to the crank mechanism in a rotationally fixed manner.
  • the press beam 8 is guided in the region of its two end faces in the vertical legs 9a of the portal frame, it being driven by means of a hydraulic drive in the direction of arrow D is movable.
  • the cutting knife 7 is mounted on the cutting knife holder 11 in the horizontal web 9c of the portal frame. The slightly arcuate guidance of the cutting knife 7 takes place via sliding blocks, not shown.
  • Reference number 10 shows the cutting plane of the cutting knife 7, which extends perpendicular to the table surface 3a and through the cutting bar 4.
  • the control panel of the face cutting machine is designated by reference number 12.
  • the known face-cutting machine described in this regard has a sensor in the form of a light barrier in the first embodiment according to the illustration in FIGS. 1 to 5 below its active surface 8a which comes into contact with the material 1 to be cut, said sensor comprising a light source 13 and a photocell 14 having.
  • the light source 13 and the photocell 14 are arranged in the region of the two opposite end faces of the press beam 8, thus outside the active surface 8a which comes into contact with the material 1 to be cut, and also outside the table surface 3a.
  • the contours of the light source 13, photocell 14 and press beam 8 located in the region of the two legs 9a of the portal frame 9 are illustrated with dashed lines.
  • Reference number 15 denotes the beam of the light barrier, which runs at a defined distance Z parallel to the active surface 8a of the press beam 8, for example at a distance of 10 mm.
  • the pressure beam 8 also has on its side facing the cutting knife 7 in the area of its active surface 8a an inductive proximity switch 25, which, as can be seen from the illustration in FIG. 5, in which the cutting knife 7 is not shown for reasons of clarity, is adjacent
  • the photocell 14 is arranged, in the area of which is also the end of the cutting edge 7a of the cutting knife 7 which is inclined downwards relative to the horizontal (FIG. 2).
  • the proximity switch 25 switches whenever the cutting edge 7a is arranged in its area, as shown in FIG. 3, thus a distance Z 'from the active surface 8a of the press beam 8 having.
  • the mode of operation of the device described so far for the purpose of optimization and the cutting process is described below: The cutting process is brought about, for example, by pressing two buttons 20 arranged in the table front.
  • the press beam 8 is lowered onto the material to be cut.
  • the light barrier is connected during the cutting process specifically after placing the pressure beam 8 on the material to be cut, via an electrical circuit with the hydraulic system for the pressure beam 8, the light barrier being activated due to the interruption of the light beam 15 by the material to be cut.
  • the cutting knife 7 is lowered and the cut material 5 is thereby produced, the sheet layers of which are displaced in parallelogram form because of the wedge-shaped design of the knife 7.
  • the cutting knife 7 is raised.
  • the proximity switch 25 detects the cutting edge 7a of the cutting knife 7, the proximity switch 25 controls the drive of the cutting knife 7, whereupon the electric motor is decoupled from the crank mechanism and the crank mechanism is braked immediately.
  • the cutting knife 7 is thus stopped at the level of the proximity switch 25 and remains at this distance level Z and Z 'or Z' to the table surface 3a or to the surface 1a of the material 1 to be cut. With the detection of the cutting edge 7a by the proximity switch 25, this gives likewise a command to lift the press beam 8.
  • the press beam together with the light barrier is raised until the light beam 15 is no longer interrupted, which means the defined distance Z of the press beam 8 from the one to be cut Good 1.
  • the light barrier is deactivated and the electrical circuit is controlled by it in such a way that the lifting movement of the press beam 8 is ended immediately. This situation is illustrated in the illustration in FIG.
  • the press beam 8 As soon as the press beam 8 to the defined If the distance Z from the material 1 to be cut is raised, the feed unit 2 is activated. As soon as this has repositioned the material to be cut, the press beam 8 is lowered again from the position shown in FIG. 4 to the material 1 to be cut, then the cutting knife from the position shown in FIG. 3, after the cut the cutting knife takes up the position again 3 and then the press beam is raised to the position shown in FIG. 4. If the material to be cut is to be cut with a larger insertion height after the material to be cut, the press beam 8 and the cutting knife 7 are moved into their maximally raised position via an external control and the position according to FIG. 4 is established after the first cut.
  • FIG. 6 shows a further embodiment in which, instead of the horizontally active light barrier attached to the underside of the pressure beam 8 and the inductive proximity switch 25 attached to the pressure beam 8, a multiplicity of horizontally active light barriers are arranged in the region of the two inner surfaces 17 and 18 of the portal frame 9 which detect the position of the press beam 8, cutting knife 7 and material 1 to be cut.
  • the material to be cut is not shown there for better understanding of the design of the cutting machine, reference number 19 indicates a side stop attached to the table. Shown in FIG.
  • the inner surface 17 of the portal frame 9 is provided with a plurality of light sources arranged at a distance from one another and one above the other in two rows. If a stack of goods 1 to be cut is placed on the table 3 in the cutting zone, one or more of the lower light barriers of the row of light barriers assigned to the press beam are activated in accordance with the insertion height, that is to say the stack height.
  • the number of non-activated light barriers is a measure of the distance of the active surface 8a of the press beam 8 from the surface 1a of the material 1 to be cut or at a distance from the cutting edge 7a of the cutting knife 7 from the table surface 3a of the table 3, which also increases the distance the cutting edge 7a of the cutting knife 7 from the surface 1a of the material 1 to be cut.
  • the electrical circuit which interacts with the hydraulic system for the press beam 8 and the crank mechanism for the cutting knife 7, is designed in this embodiment in such a way that, at a defined distance level, that is to say with a bandwidth of inactive light barriers, expressed by the effective distance Z as a defined one Distance the lifting movement of the cutting knife 7 or press beam 8 is ended immediately or with a time delay.
  • Parts corresponding to the embodiment according to FIGS. 1 to 5 are designated with the same reference numbers in FIG. 6; the remarks relating to this embodiment regarding the optimization of the cutting process also apply.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Control Of Cutting Processes (AREA)
  • Details Of Cutting Devices (AREA)
EP93112528A 1992-08-28 1993-08-05 Dispositif pour couper des objets empilés en forme de feuille Expired - Lifetime EP0590273B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4228651A DE4228651A1 (de) 1992-08-28 1992-08-28 Verfahren und Vorrichtung zum Optimieren des Schneidevorganges bei einer Schneidemaschine
DE4228651 1992-08-28

Publications (2)

Publication Number Publication Date
EP0590273A1 true EP0590273A1 (fr) 1994-04-06
EP0590273B1 EP0590273B1 (fr) 1998-10-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112528A Expired - Lifetime EP0590273B1 (fr) 1992-08-28 1993-08-05 Dispositif pour couper des objets empilés en forme de feuille

Country Status (5)

Country Link
US (1) US5488886A (fr)
EP (1) EP0590273B1 (fr)
JP (1) JPH06210594A (fr)
DE (2) DE4228651A1 (fr)
ES (1) ES2124274T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740983A1 (fr) * 1995-05-04 1996-11-06 Wohlenberg Vertriebs- und Service GmbH Machine pour le découpage sur trois cÔtés
EP1669174A1 (fr) * 2004-12-10 2006-06-14 Horizon International Inc. Guillotine
CN113183192A (zh) * 2021-03-23 2021-07-30 安徽庆丰余防伪科技有限公司 一种防伪标签切割方法及设备

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19502300A1 (de) * 1995-01-26 1996-08-01 Mohr Adolf Maschf Vorrichtung zum Schneiden von blättrigem Gut
US6047470A (en) 1997-08-20 2000-04-11 Micron Technology, Inc. Singulation methods
FI981538A (fi) * 1998-07-03 2000-01-04 Valmet Corp Menetelmä ja laite rainan leikkaamiseksi
EP1172185A1 (fr) * 2000-07-14 2002-01-16 Adolf Mohr Maschinenfabrik GmbH & Co. KG Dispositif pour la coupe de matériaux en feuille
JP4514306B2 (ja) * 2000-10-18 2010-07-28 ホリゾン・インターナショナル株式会社 三方断裁機
DE10258553B8 (de) * 2002-12-14 2005-12-08 Leica Mikrosysteme Gmbh Verfahren zum automatischen Annähern eines Präparates an ein Messer eines Mikrotoms oder Ultramikrotoms
DE502004004725D1 (de) * 2004-04-29 2007-10-04 Senator Technology Gmbh Vorrichtung zum Handhaben eines Stapels
JP4238811B2 (ja) * 2004-10-21 2009-03-18 コニカミノルタビジネステクノロジーズ株式会社 用紙断裁装置及び用紙後処理装置
JP4679297B2 (ja) * 2005-08-10 2011-04-27 キヤノンファインテック株式会社 シート裁断装置、シート処理装置及び画像形成装置
WO2008124837A2 (fr) * 2007-04-10 2008-10-16 Acco Brands Usa Llc Massicot
JP2010125580A (ja) * 2008-11-29 2010-06-10 Konica Minolta Business Technologies Inc 用紙断裁装置及び画像形成システム
CN107825481A (zh) * 2017-11-30 2018-03-23 天津市侨阳印刷有限公司 一种印刷品切割设备
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EP4059678B1 (fr) * 2021-03-17 2023-06-07 Krug & Priester GmbH & Co. KG Procédé et machine de coupe avec inversement par contrôle sécuritaire du mouvement dangereux de la lame de coupe en cas de danger
CN113400371A (zh) * 2021-06-30 2021-09-17 河南经贸职业学院 一种财务管理用工资单定位裁切装置
CN116038796B (zh) * 2023-01-05 2023-08-29 宁波白云印刷有限公司 一种可调节切割距离的印刷纸切割管控方法及设备

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EP1669174A1 (fr) * 2004-12-10 2006-06-14 Horizon International Inc. Guillotine
US7428859B2 (en) 2004-12-10 2008-09-30 Horizon International Inc. Guillotine cutter
CN113183192A (zh) * 2021-03-23 2021-07-30 安徽庆丰余防伪科技有限公司 一种防伪标签切割方法及设备

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EP0590273B1 (fr) 1998-10-28
DE4228651A1 (de) 1994-03-03
US5488886A (en) 1996-02-06
JPH06210594A (ja) 1994-08-02
ES2124274T3 (es) 1999-02-01
DE59309095D1 (de) 1998-12-03

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