EP0252418B1 - Guillotine - Google Patents

Guillotine Download PDF

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Publication number
EP0252418B1
EP0252418B1 EP87109435A EP87109435A EP0252418B1 EP 0252418 B1 EP0252418 B1 EP 0252418B1 EP 87109435 A EP87109435 A EP 87109435A EP 87109435 A EP87109435 A EP 87109435A EP 0252418 B1 EP0252418 B1 EP 0252418B1
Authority
EP
European Patent Office
Prior art keywords
guillotine
type cutter
cutter according
holding
moved
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
EP87109435A
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German (de)
English (en)
Other versions
EP0252418A1 (fr
Inventor
Wolfgang Mohr
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Individual
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
Application filed by Individual filed Critical Individual
Publication of EP0252418A1 publication Critical patent/EP0252418A1/fr
Application granted granted Critical
Publication of EP0252418B1 publication Critical patent/EP0252418B1/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
    • 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
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/12—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns including means pressing against top or end of group
    • 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
    • Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—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
    • Y10T83/566—Interrelated tool actuating means and means to actuate work immobilizer
    • Y10T83/5669—Work clamp
    • Y10T83/5705—With means providing for plural steps in clamping stroke

Definitions

  • the invention relates to a plan cutting machine for stacked goods made of sheet material, such as paper, with a work table that has a receiving surface for the stacked goods behind a cutting knife, via which a stacked goods feed device can be moved approximately perpendicular to the cutting knife, and with a hold-down bar that runs approximately parallel to the cutting knife, is arranged near one end of the receiving surface and can be lowered under pressure on the stacked goods.
  • Such face cutting machines are generally known, for example from DE-A 3101 911.
  • the invention has for its object to improve the format accuracy in face cutting machines of the type described above.
  • an air spreading device which can also be lowered under pressure on the stacked goods and in this position can be moved from a location adjacent to the hold-down bar in the direction of the other end of the receiving surface.
  • the air spreading device integrated in the face cutting machine By means of the air spreading device integrated in the face cutting machine, air inclusions between the individual sheets of the stack can be eliminated immediately before the beginning of the cutting processes or even between the individual cutting processes.
  • the stack height is approximately reduced to the extent corresponding to the sum of the sheet thicknesses. Therefore, there is no strong further compression during cutting, with the result that the sheets of the upper stack part are not pulled forward or to a much lesser extent and are moved away from the front surface of the feed device.
  • the result is a compact stack in which the tendency of the sheets to move against one another is drastically reduced.
  • the risk of displacement is also low because the stack only has short transport routes in the machine. Overall, a high degree of format accuracy can be achieved.
  • the hold-down bar is preferably formed by the press bar and the spreading device can be moved from the front to the rear in the lowered position. Then you do not need a separate Niederbaitebaiken, which brings space and cost savings.
  • a pressing force setting device which, in addition to the pressing forces required during cutting, allows a holding-down pressing force of the press beam to be set. In this way, a reduced pressing force can be set, which is adapted to the conditions during spreading.
  • the air spreading device is a spreading roller. This can roll over the stacked goods without exerting frictional forces influencing the stack.
  • the spreading device is held on a bridge which can be moved by means of a motor on rails arranged on both sides of the receiving surface.
  • This bridge can give the streaking device the desired longitudinal movement without otherwise impairing the handling of the stack to be cut.
  • the spreading device can be moved up to a point between the stacked goods and the feed device. In this way it is ensured that the air is spread out to the rearmost edge of the stack.
  • the feed device which normally acts on the rear edge of the stack, should be able to be moved a sufficient distance further back.
  • the spreading device preferably has at least two pressure transmitters distributed over its length, with the aid of which it can be pressed against the stacked goods. This makes it possible to let approximately the same pressure act across the entire width of the spreading device. If spreads of smaller width are to be spread out, only a part of the pressure transmitters need to be supplied with pressure.
  • a cover which can be placed on the stacked goods and onto which the spreading device can be lowered.
  • a cover provides stability in the transverse direction, so that the sheets of the stack cannot move sideways when spreading out. This is particularly advantageous if several narrow block strips are next to each other on the receiving surface and are to be spread out together.
  • Such a cover expediently has air passage openings. So that the cover and stack enclosed between air can escape and there is no danger that the top sheet of the stack will be taken away by suction when the cover is lifted off.
  • the cover is formed by a cover band extending over the width of the receiving surface, the end of which facing the hold-down bar can be lowered and raised again by a servomotor and the other end of which is connected to a tensioning device which holds the cover band tensioned.
  • a masking tape is constantly in a ready position, in which it does not interfere with the feed and cutting operation, but can be brought into the working position required for spreading in a simple manner.
  • a winding roller pretensioned in the direction of rotation is recommended as the tensioning device. This takes up little space.
  • the winding roller can be mounted near the spreading device and can be moved together with the latter along the receiving surface.
  • the spreading device is in its rest position near the hold-down bar, the receiving surface is freely accessible.
  • the end of the cover tape facing the hold-down device is fastened to a height-adjustable cross-member arranged between the hold-down device and the spreading device. This traverse quickly brings the masking tape into the working position.
  • a driver which can be moved parallel to the cutting knife and is able to push the spread stacked goods against a side stop of the receiving surface is attached to the feed device. This takes into account the fact that the air is expediently stripped out when the stack is not yet against the side stop. After streaking, the driver can then guide the stack at the rear end against the side stop. At the front end, this can be done manually without difficulty.
  • the driver can be pivoted about an axis in such a way that it can be shifted from an effective position in front of the feed device into an ineffective position which avoids a collision with the press beam.
  • the driver therefore does not hinder the advancement of the feed device right up to the press beam.
  • the driver is carried by a block which is adjustable by means of a threaded spindle running parallel to the cutting knife, and is rotatably but axially displaceably mounted on a shaft which is parallel thereto and which can be rotated by a predetermined swivel angle. This results in a simple construction to move and pivot the driver.
  • the driver is preferably connected to the block via a pneumatic cylinder.
  • the driver is held resiliently, which prevents overstressing.
  • the actual alignment of the stack can be done by actuating the pneumatic cylinder.
  • the face cutting machine illustrated in the figures has a cutting knife 2 in a housing 1, which is only indicated, and a press beam 3 behind it.
  • a work table 4 which has a receiving surface 5 for stacked goods 6 behind the cutting knife 2 and the press beam 3.
  • a feed device 7 can be moved from the rear to the front, approximately perpendicular to the cutting knife 2, and back in the direction of the double arrow a in order to feed the stacked goods 6 to the cutting area.
  • the stack deforms in such a way that its rear edge 8 has the dashed course and is no longer in contact with the end face of the feed device 7 over the entire height could come.
  • the entire stack is compressed and the trailing edge 8 is aligned vertically by the air streak described below.
  • An air spreading device 9 in the form of a spreading roller is located above the receiving surface.
  • the bearing arrangement 10 is loaded by two pneumatic pressure transmitters 11, which have pistons and cylinders, the cylinders of which are mounted next to one another on the cross member 12 of a bridge 13, and are guided by means of rods 14 in bushings 15 on the cross member 12.
  • the spreading device 9 can be moved up and down in the direction of the arrow b.
  • the bridge 13 can be moved back and forth in the direction of arrow c with the aid of a servomotor 16 on longitudinal guides 17 and 18.
  • the servomotor 16 is arranged on one side. Its driver engages a toothed chain 19 or the like. on, which is guided over pulleys 20 and 21 on the work table 5 and connected to a foot of the bridge 13.
  • the other foot of the bridge is connected to a second toothed chain 22, which is guided over deflection rollers, which are connected to the deflection rollers 20 and 21 via axles 24 and 25 in a rotationally fixed manner.
  • the other end is held on a tensioning device 30 in the form of a pre-tensioned winding roller, which is mounted behind the spreading device 9 on the bridge 13.
  • the press beam 3 is reduced with a pressing force which is reduced compared to the pressing force used during cutting and is sufficient for holding down and which is specified with the aid of a pressing force adjusting device 31 (as shown in FIG Fig. 2 is indicated), lowered onto the stack 6.
  • the traverse 28 is moved with the end of the cover tape 27 from the illustrated ready position until it rests on the stack 6.
  • the spreading device 9 is then moved downward from the illustrated ready position and held against the cover tape 27 and the stack 6 with a predetermined pressure. With the help of the servomotor 16, the spreading device 9 is finally moved backwards, with air from the stack 6 is crossed out.
  • the feed device 7 has been moved backwards in good time beforehand, so that the streaking device 9 can be moved beyond the rear edge 8 of the stack 6.
  • This free space is usually available in face-cutting machines after the feed device 7 has pushed the stack 6 up to below the press beam.
  • the spreading device 9 is then raised again and returned to the ready position in the lifted state.
  • the cross member 28 and the press beam 3 are moved back to their ready position.
  • a driver 32 is attached to the feed device 7, which can be pivoted about an axis 33 from the effective position shown in FIG. 1 into the ineffective position illustrated in FIG has been introduced, did not collide with it.
  • the task of the driver 32 is to push the rear part of a stack 6 against a side stop 34 after air has been smeared out. The front end of the stack 6 can be pushed against this side stop 34 by hand.
  • the driver 32 is connected via a pneumatic cylinder 35 to a block 36 which is adjustable parallel to the cutting knife 2 by means of a threaded rod 37 which can be rotated by a motor 38. In this way, the driver 32 is movable in the direction of arrow e.
  • the swivel axis 33 is formed by a multi-tooth shaft which can be swiveled by 90 ° with the aid of a pneumatic cylinder 39 with the interposition of a swivel arm 40.
  • the movement sequences described can be controlled by an appropriate program so that they run automatically. If you mainly work with large stacks, you can also work with a cover sheet that is only put on if occasionally smaller stacks or block strips are to be spread out. The spreading can also take place from the back to the back if an additional hold-down bar is provided at the rear end of the receiving surface.
  • the servomotors can have the shape customary in face-cutting machines and can be operated in particular pneumatically, hydraulically or electrically.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (17)

1. Guillotine pour des empilements d'un matériau en forme de feuilles, tel que du papier, comprenant un plateau de travail (4) qui présente, derrière une lame de sectionnement (2), une surface (5) réceptrice du matériau empilé (6), au-dessus de laquelle un dispositif d'avance du matériau empilé est mobile à peu près perpendiculairement à la lame de sectionnement (2); ainsi qu'une poutrelle (3) de compression vers le bas qui s'étend à peu près parallèlement à la lame de sectionnement (2), est disposée à proximité d'une extrémité de la surface réceptrice (5), et peut être abaissée sous pression sur le matériau empilé (6), caractérisée par un dispositif (9) d'expulsion d'air, qui peut également être abaissé sous pression sur le matériau empilé (6) et peut, dans cette position, être déplacé à partir d'un emplacement voisin de la poutrelle (3) de compression vers le bas, en direction de l'autre extrémité de la surface réceptrice (5).
2. Guillotine équipée d'un sommier de pression implanté derrière la lame de sectionnement, selon la revendication 1, caractérisée par le fait que la poutrelle de compression vers le bas est formée par ledit sommier de pression (3) et le dispositif (9) d'expulsion d'air peut, dans la position abaissée, être déplacé de l'avant vers l'arrière.
3. Guillotine selon la revendication 2, caractérisée par un dispositif (31) de réglage de la force de pression qui permet de régler une force de compression vers le bas du sommier de pression (3), en plus des forces de pression nécessaires au stade du sectionnement.
4. Guillotine selon l'une des revendications 1 à 3, caractérisée par le fait que le dispositif (9) d'expulsion d'air est un cylindre expulseur.
5. Guillotine selon l'une des revendications 1 à 4, caractérisée par le fait que le dispositif (9) d'expulsion d'air est retenu sur un portique (13) mobile, au moyen d'un moteur (16), sur des rails (17, 18) installés de part et d'autre de la surface réceptrice (5).
6. Guillotine selon l'une des revendications 1 à 5, caractérisée par le fait que le dispositif (9) d'expulsion d'air peut être déplacé jusqu'à un emplacement situé entre le matériau empilé (6) et le dispositif d'avance (7).
7. Guillotine selon l'une des revendications 1 à 6, caractérisée par le fait que le dispositif (9) d'expulsion d'air présente au moins deux générateurs de pression (11), répartis sur sa longueur, à l'aide desquels il peut être pressé contre le matériau empilé (6).
8. Guillotine selon l'une des revendications 1 à 7, caractérisée par une coiffe (27) pouvant être appliquée sur le matériau empilé (6), et sur laquelle le dispositif (9) d'expulsion d'air peut être abaissé.
9. Guillotine selon la revendication 8, caractérisée par le fait que la coiffe (27) est percée d'orifices (26) de passage d'air.
10. Guillotine selon la revendication 8 ou 9, caractérisée par le fait que la coiffe (27) est formée par une réglette de recouvrement qui s'étend sur la largeur de la surface réceptrice, dont l'extrémité tournée vers la poutrelle (3) de compression vers le bas peut être abaissée, puis de nouveau soulevée, par l'intermédiaire d'un servomoteur (29), et dont l'autre extrémité est reliée à un dispositif de serrage (30) entretenant une tension dans la réglette de recouvrement.
11. Guillotine selon la revendication 10, caractérisée par le fait que le dispositif de serrage (30) est un cylindre enrouleur soumis à une précharge dans le sens de rotation.
12. Guillotine selon la revendication 11, caractérisée par le fait que le cylindre enrouleur (30) est monté à proximité du dispositif (9) d'expulsion d'air et peut être déplacé, conjointement à ce dernier, le long de la surface réceptrice (5).
13. Guillotine selon l'une des revendications 10 à 12, caractérisée par le fait que l'extrémité de la réglette de recouvrement (27), tournée vers la poutrelle (3) de compression vers le bas, est fixée à une traverse (28) réglable en hauteur, qui est interposée entre ladite poutrelle de compression vers le bas et le dispositif (9) d'expulsion d'air.
14. Guillotine selon l'une des revendications 1 à 13, caractérisée par le fait qu'un organe d'entraînement (32), installé sur le dispositif d'avance (7) et mobile parallèlement à la lame de sectionnement (2), est en mesure de pousser le matériau empilé (6), dont l'air a été expulsé, contre une butée latérale (34) de la surface réceptrice (5).
15. Guillotine selon la revendication 14, caractérisée par le fait que l'organe d'entraînement (32) peut pivoter, autour d'un axe (33), de façon qu'il puisse être transféré d'une position active, devant le dispositif d'avance (7), à une position inactive qui évite une collision avec le sommier de pression (3).
16. Guillotine selon la revendication 14 ou 15, caractérisée par le fait que l'organe d'entraînement (32) est porté par un bloc (36) qui est réglable au moyen d'une broche filetée (37) s'étendant parallèlement à la lame de sectionnement (2), et est monté avec verrouillage antirotation, mais avec faculté de coulissement axial, sur un arbre (33) qui lui est parallèle et peut tourner d'un angle de pivotement préétabli.
17. Guillotine selon la revendication 16, caractérisée par le fait que l'organe d'entraînement (32) est relié au bloc par l'entremise d'un vérin pneumatique (35).
EP87109435A 1986-07-09 1987-07-01 Guillotine Expired - Lifetime EP0252418B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863623004 DE3623004A1 (de) 1986-07-09 1986-07-09 Planschneidemaschine
DE3623004 1986-07-09

Publications (2)

Publication Number Publication Date
EP0252418A1 EP0252418A1 (fr) 1988-01-13
EP0252418B1 true EP0252418B1 (fr) 1990-05-23

Family

ID=6304706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109435A Expired - Lifetime EP0252418B1 (fr) 1986-07-09 1987-07-01 Guillotine

Country Status (5)

Country Link
US (1) US4836074A (fr)
EP (1) EP0252418B1 (fr)
JP (1) JPS6322298A (fr)
DE (2) DE3623004A1 (fr)
ES (1) ES2015925B3 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP1918097A2 (fr) 2006-10-31 2008-05-07 MAN Roland Druckmaschinen AG Système d'application d'agent adhésif dans une presse et procédé de fabrication d'un bloc d'écriture ou bloc-notes

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DE4002101A1 (de) * 1990-01-25 1991-08-08 Wolfgang Mohr Vorrichtung zum schneiden von gestapeltem, blattfoermigem gut mit seitenanschlag und gegen diesen bewegbarem andruckschieber zum ausrichten des zu schneidenden gutes
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JP2694585B2 (ja) * 1991-12-19 1997-12-24 富士写真フイルム株式会社 断裁装置、空気抜き装置及びシート重なり防止装置
JP3113949B2 (ja) * 1992-03-02 2000-12-04 カール事務器株式会社 紙截断機
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DE4228651A1 (de) * 1992-08-28 1994-03-03 Wolfgang Mohr Verfahren und Vorrichtung zum Optimieren des Schneidevorganges bei einer Schneidemaschine
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US6799497B1 (en) 2000-09-20 2004-10-05 James A. Creighton Bi-directional cutting or trimming knife
JP4881707B2 (ja) * 2006-12-06 2012-02-22 株式会社セーコウ 紙葉類の切断刃研磨方法及び紙葉類断裁装置
JP6010730B2 (ja) 2009-05-29 2016-10-19 日産自動車株式会社 高延性ダイクエンチによる高強度成形品及びその製造方法
JP5467480B2 (ja) 2009-07-31 2014-04-09 高周波熱錬株式会社 溶接構造部材及び溶接方法
CN106863377A (zh) * 2017-03-01 2017-06-20 高晶 切纸机
CN115890767B (zh) * 2022-11-03 2023-10-17 无锡忆嘉包装材料制造有限公司 一种纸板卷材半自动裁切机

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1918097A2 (fr) 2006-10-31 2008-05-07 MAN Roland Druckmaschinen AG Système d'application d'agent adhésif dans une presse et procédé de fabrication d'un bloc d'écriture ou bloc-notes
DE102006051277A1 (de) * 2006-10-31 2008-05-08 Man Roland Druckmaschinen Ag Haftvermittlerauftragssystem in einer Druckmaschine und Verfahren zur Herstellung von Schreib- oder Notizblocks

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ES2015925B3 (es) 1990-09-16
JPH046513B2 (fr) 1992-02-06
DE3762818D1 (de) 1990-06-28
US4836074A (en) 1989-06-06
EP0252418A1 (fr) 1988-01-13
JPS6322298A (ja) 1988-01-29
DE3623004C2 (fr) 1988-06-01
DE3623004A1 (de) 1988-01-28

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