EP1010504B1 - Dispositif pour la coupe transversale d'une nappe en mouvement - Google Patents

Dispositif pour la coupe transversale d'une nappe en mouvement Download PDF

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Publication number
EP1010504B1
EP1010504B1 EP99123970A EP99123970A EP1010504B1 EP 1010504 B1 EP1010504 B1 EP 1010504B1 EP 99123970 A EP99123970 A EP 99123970A EP 99123970 A EP99123970 A EP 99123970A EP 1010504 B1 EP1010504 B1 EP 1010504B1
Authority
EP
European Patent Office
Prior art keywords
web
knife
actuating drive
held
displaceable
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
EP99123970A
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German (de)
English (en)
Other versions
EP1010504A3 (fr
EP1010504A2 (fr
Inventor
Alfred Rosas
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.)
Erhardt and Leimer GmbH
Original Assignee
Erhardt and Leimer GmbH
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 Erhardt and Leimer GmbH filed Critical Erhardt and Leimer GmbH
Publication of EP1010504A2 publication Critical patent/EP1010504A2/fr
Publication of EP1010504A3 publication Critical patent/EP1010504A3/fr
Application granted granted Critical
Publication of EP1010504B1 publication Critical patent/EP1010504B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
    • 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
    • B26D1/085—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 for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/02—Tearing

Definitions

  • the invention relates to a device for severing a moving web, in particular a paper web, according to the preamble of claim 1.
  • a device which cuts through a paper web across.
  • This device is used in particular before rotary printing presses, to protect them from the appearance of paper winder.
  • This known device has a paper web transversely across the knife, the stationary above the Paper web is arranged. Opposite the knife is provided a movable beam, in a the Paper web against the knife deflecting position brought is so that the knife the paper web transverse to its direction severed.
  • From DE 196 04 608 C1 is a cutting device for Shredding empty component belts known. These Cutting device has a cutting blade, which is adjustable at both ends of pneumatic cylinders. These pneumatic cylinders are activated one after the other, so that the knife first around a knife end and then pivoted about the opposite end of the knife becomes.
  • From DE 32 06 681 A1 is a hydraulically driven Cutting machine for paper sheets known.
  • This one has one Hydraulic cylinder on, via a toggle on a handlebar attacks, at the end of a cutting blade is articulated. The opposite end of the cutting blade is pivotally supported by a handlebar.
  • This mechanism results when adjusting the hydraulic cylinder a trajectory of the cutting blade, the one superimposition of a pivoting movement and a Sliding motion is.
  • EP 0 686 505 A1 is a device for cutting of tapes known which a movable cutting blade and having movable band holders.
  • the cutting knife and the band holders are on four toggle at one Frame held between two toggle lever Actuating cylinder attacks.
  • the knee levers are like that formed so that both the cutting blade and the Band holder displaceable and swiveling are.
  • the invention is based on the object, a device of the type mentioned above, in which the during the cutting process applied to the device Forces are reduced.
  • the device according to claim 1 has at least two Beams between which passed the web is.
  • the beams overlap the web across to their Running direction and they are by means of an actuator against each other kept adjustable.
  • Both bars are adjustable by the actuator, in the Usually, however, it is sufficient to adjust only one of the bars.
  • One of the bars carries a knife that goes against the Web is directed to this transversely to its direction to sever.
  • the opposite beam steers the web in a position of the actuator against the knife around, so that the cutting operation by actuation of the actuator can be triggered.
  • the opposite bar in a rest position of Actuator held such that the web without being deflected to be on the bar passes, so that the web run in no way hindered by the device becomes.
  • the adjustable bar is displaced in one plane. and guided pivotally.
  • the adjustable bar Therefore, has two degrees of freedom, one of which determined by the position of the actuator.
  • the actuator causes in particular a shift of the adjustable Beam against the opposite beam, wherein the adjustable beam additionally free to pivot is. Meets the adjustable beam on the web, so this bar pivots in such a way that only given a relatively small attack surface on the web is, so that the cutting force of the knife accordingly reduced. It does not matter if that Knife held on a fixed or adjustable bar is. In particular, it is also thought, both bars against each other by means of a common actuator in opposite directions to adjust.
  • the knife is at least at the beginning of the cutting process set at an acute angle to the opposite beam.
  • the knife with the web includes an acute angle, so that the cut begins at a web edge and continuously led to the opposite web edge becomes.
  • the knife is therefore only one at any time exposed to relatively low load through the web, so that the knife and the beams correspond accordingly can be dimensioned smaller.
  • the knife with the opposite bar one include constant, acute angle, with the adjustable Beam is guided only displaceable. This gives a defined angle of attack of the knife relative to the web, in particular of the Matterialeigenschaften the web is independent.
  • the adjustable beam according to claim 2 held arresting in its end positions by the actuator. In these end positions of the adjustable beam is this consequently no longer pivotable and therefore takes one predetermined position.
  • the spring is in one press the adjustable bar against the web Direction biased so that the spring the force effect supported by the actuator. This causes a shortening the reaction time of the device, since the spring the Cutting process already initiates as soon as the arresting Effect of the actuator is canceled. Especially this requires the actuator on the adjustable bar still exert no force, which is especially true for pneumatic cylinders as an actuator claimed a certain amount of time.
  • the actuator according to claim 5 also asymmetric on the adjustable Attack beams. This will make one side of the adjustable Beam with greater force than the opposite side adjusted, so that the adjustable bar without further Measures a tilted to the opposite beam position occupies.
  • a particularly advantageous embodiment of the device arises from claim 6.
  • the stationary beam carries the Knife, so that this is also immovable. This reduces in particular the risk of injury caused by the Device could go out.
  • the knife a Clamping surface is arranged upstream, the web in one End position of the adjustable bar between this and the Clamping surface is held clamped. This ensures that the web after the separation no longer continues, so that the machine following the device be reliably protected. In addition, the web can be taken back very easily to them after Eliminate the error that requires the severing made to thread again into the next machine.
  • the actuator according to claim 10 as Hydraulic or pneumatic cylinder formed on both sides via a respective lever mechanism on the adjustable Beam attacks.
  • a hydraulic or pneumatic cylinder allows a responsive power transmission, though this can be designed small construction. With that you can the moving masses are kept relatively small, which in turn advantageous to the achievable reaction rate affects the device.
  • a preferred embodiment of the lever mechanism in the form of a L-shaped angle lever results from claim 11.
  • the angle lever has two legs, which are approximately are aligned at right angles to each other. At the free end one of the legs attacks the actuator while at the free end of the other leg of the adjustable Beam is articulated.
  • the angle lever itself is in the connection area the two legs pivot on the frame held. In this way results in a simple and thus low-friction gear for controlling the adjustable Bar.
  • the opposite Lever gearbox of two on the actuator hinged levers form on the one hand on the frame and on the other hand articulated on the adjustable beam.
  • Designed as a hydraulic or pneumatic cylinder Actuator engages between two lever gears, so that the adjustable beam from the actuator against the opposite bar can be pressed.
  • the two Lever gear also provide the desired Slewing freedom of the adjustable bar.
  • FIGS 1 and 2 are associated sectional views a device 1 for cutting a running Web 2 shown.
  • the device 1 has a Frame 3, in which a bar 4 held stationary is.
  • the bar 4 overlaps the web 2 transversely to her Running direction 5 and he wears a knife 6 for cutting the web 2.
  • This knife 6 is in one Angle ⁇ employed against the direction 5 of the web 2.
  • the stationary held bar 4 is an adjustable Beam 7 opposite, which carries a clamping nose 8.
  • These Clamping nose 8 is arranged so that in the in the figures 1 and 2 shown rest position of the adjustable Beams 7, the web 2 is not affected.
  • the adjustable bar 7 is via two lever mechanism 9, 10 with an actuator 11 in the form of a double-acting Pneumatic or hydraulic cylinder connected.
  • the Lever gear 9 consists of an L-shaped angle lever 12, which has two legs 13, 14 to each other enclose an angle of about 90 °.
  • the Angle lever 12 to a linkage 15, over which it pivots is supported on the frame 3.
  • the leg 14 engages a biased in the pulling direction spring 16, the Angle lever 12 loaded in a clockwise direction.
  • the opposite lever mechanism 10 consists of two separate levers 17, 18, which are free and independent of each other pivotally held at the opposite end of the actuator 11 are.
  • the lever 17 is with its free end on the frame 3 hinged, while the free end of the lever 18 am adjustable beam 7 is hinged.
  • the adjustable bar 7 Due to the special design of the lever mechanism 9, 10th the adjustable bar 7 has two degrees of freedom, in particular, in a direction perpendicular to the web running direction 5 aligned plane displaced and pivoted is held.
  • the adjustable beam 7 stops 19, Associated with 20, which are fixedly connected to the frame 3. In the rest position of the adjustable bar 7 is this on the attacks 19, 20 on, so that he in this situation no longer swiveling.
  • the adjustable bar 7 presses with its left end area 21 against the web 2 and directs this against the Knife 6 um.
  • the web 2 is doing against the contrary the web running direction 5 employed by an acute angle ⁇ Knife 6 pressed, at this deflected and therefore incised.
  • the adjustable bar 7 closes with the knife 6 in this position a sharp Angle ⁇ in the range between 1 ° and 10 °.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Replacement Of Web Rolls (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (12)

  1. Dispositif pour couper une nappe en mouvement (2), notamment une nappe de papier, dans lequel le dispositif (1) présente au moins deux poutres (4, 7) engageant la nappe (2) par le dessus transversalement à sa direction d'avance (5) et l'enserrant entre elles, dont une est maintenue de manière déplaçable par rapport à l'autre au moyen d'un entraínement de commande (11) venant en prise avec celle-ci, l'une des poutres (4, 7), au moins dans une position de l'entraínement de commande (11), déviant la nappe (2) contre la poutre opposée (7, 4) qui porte un couteau (6) orienté vers la nappe (2), la poutre déplaçable (7) étant guidée dans un plan orienté essentiellement perpendiculairement à la direction d'avance (5) de la nappe de manière coulissante et pivotante, et étant maintenue de manière librement pivotante dans une position centrale de l'entraínement de commande (11) et de manière à être déplacée par force par ce dernier, caractérisé en ce que des moyens (16) sont prévus, lesquels font en sorte que le couteau (6) forme un angle aigu (α) avec la poutre opposée (7, 4) au moins au commencement de l'opération de coupe.
  2. Dispositif selon la revendication 1, caractérisé en ce que la poutre déplaçable (7) est maintenue bloquée dans ses positions d'extrémité par l'entraínement de commande (11).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les moyens (16) se composent d'au moins un ressort qui vient en prise avec la poutre déplaçable (7) à côté de l'entraínement de commande (11).
  4. Dispositif selon la revendication 3, caractérisé en ce que le ressort (16) est précontraint dans une direction pressant la poutre déplaçable (7) contre la nappe (2).
  5. Dispositif selon au moins l'une quelconque des revendications 1 à 4, caractérisé en ce que l'entraínement de commande (11) vient en prise de manière asymétrique sur la poutre déplaçable (7).
  6. Dispositif selon au moins l'une quelconque des revendications 1 à 5, caractérisé en ce que l'une des poutres (4, 7) est maintenue stationnaire dans un cadre (3) qui porte le couteau (6) tandis que la poutre déplaçable (7) dévie la nappe (2).
  7. Dispositif selon au moins l'une quelconque des revendications 1 à 6, caractérisé en ce que le couteau (6) est placé suivant un angle aigu (β) à l'encontre de la direction d'avance (5) de la nappe.
  8. Dispositif selon au moins l'une quelconque des revendications 1 à 7, caractérisé en ce que l'on monte avant le couteau (6) une surface de serrage (22) pour la poutre opposée (7, 4), entre lesquelles la nappe (2) peut être maintenue serrée.
  9. Dispositif selon au moins l'une quelconque des revendications 1 à 8, caractérisé en ce que l'entraínement de commande (11) vient en prise par le biais d'au moins un mécanisme de levier (9, 10) avec la poutre déplaçable.
  10. Dispositif selon la revendication 9, caractérisé en ce que l'entraínement de commande (11) est un vérin hydraulique ou pneumatique, qui vient en prise des deux côtés avec la poutre déplaçable (7) par le biais d'un mécanisme de levier respectif (9, 10).
  11. Dispositif selon la revendication 9 ou 10, caractérisé en ce que l'un des mécanismes de levier (9, 10) est formé par un levier coudé (12) en forme de L, supporté à pivotement sur le cadre (3), qui présente deux branches (13, 14) sur lesquelles est articulé d'une part l'entraínement de commande (11), et d'autre part la poutre déplaçable (7).
  12. Dispositif selon au moins l'une quelconque des revendications 9 à 11, caractérisé en ce que l'un des mécanismes de levier (9, 10) est formé par deux leviers (17, 18) articulés sur l'entraínement de commande (11), qui sont articulés d'une part au cadre (3) et d'autre part à la poutre déplaçable (7).
EP99123970A 1998-12-14 1999-12-06 Dispositif pour la coupe transversale d'une nappe en mouvement Expired - Lifetime EP1010504B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29822216U 1998-12-14
DE29822216U DE29822216U1 (de) 1998-12-14 1998-12-14 Vorrichtung zum Durchtrennen einer laufenden, flachen Bahn

Publications (3)

Publication Number Publication Date
EP1010504A2 EP1010504A2 (fr) 2000-06-21
EP1010504A3 EP1010504A3 (fr) 2003-03-26
EP1010504B1 true EP1010504B1 (fr) 2005-11-30

Family

ID=8066580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99123970A Expired - Lifetime EP1010504B1 (fr) 1998-12-14 1999-12-06 Dispositif pour la coupe transversale d'une nappe en mouvement

Country Status (3)

Country Link
EP (1) EP1010504B1 (fr)
AT (1) ATE311276T1 (fr)
DE (2) DE29822216U1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB689441A (en) * 1950-07-21 1953-03-25 E P Lawson Co Inc Improvements in or relating to paper cutters of the guillotine type
US4295400A (en) * 1980-03-31 1981-10-20 Baldwin-Korthe Web Controls, Inc. Web severing device
DE3206681A1 (de) * 1982-02-25 1983-09-01 Kresimir Dipl.-Ing. 2850 Bremerhaven Kusan Hydraulisch angetriebene schneidemaschine fuer papierbogen od. dgl.
DE4039047C2 (de) * 1990-12-07 1993-11-25 Franz Knur Abdruckpresse
DE9306514U1 (de) * 1993-04-30 1994-01-20 Rosas-Kavalle, Alfredo, 86420 Diedorf Vorrichtung zum Durchtrennen einer laufenden, flachen Bahn
FR2720330B1 (fr) * 1994-05-26 1996-07-05 Pierre Tesseraud Dispositif coupe bande.
DE19604608C1 (de) * 1996-02-08 1997-04-10 Siemens Ag Schneideeinrichtung zum Zerkleinern von leeren Bauteilegurten

Also Published As

Publication number Publication date
ATE311276T1 (de) 2005-12-15
EP1010504A3 (fr) 2003-03-26
DE29822216U1 (de) 1999-04-01
DE59912860D1 (de) 2006-01-05
EP1010504A2 (fr) 2000-06-21

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