EP1440927B1 - Dispositif de préhension d'une machine de traitement de feuilles plates - Google Patents

Dispositif de préhension d'une machine de traitement de feuilles plates Download PDF

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Publication number
EP1440927B1
EP1440927B1 EP03104392A EP03104392A EP1440927B1 EP 1440927 B1 EP1440927 B1 EP 1440927B1 EP 03104392 A EP03104392 A EP 03104392A EP 03104392 A EP03104392 A EP 03104392A EP 1440927 B1 EP1440927 B1 EP 1440927B1
Authority
EP
European Patent Office
Prior art keywords
gripper
bead
spindle
machine
grippers
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
EP03104392A
Other languages
German (de)
English (en)
Other versions
EP1440927A1 (fr
Inventor
Rudolf Öchsner
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1440927A1 publication Critical patent/EP1440927A1/fr
Application granted granted Critical
Publication of EP1440927B1 publication Critical patent/EP1440927B1/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
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/16—Rotary folders
    • B65H45/162—Rotary folders with folding jaw cylinders
    • B65H45/165—Details of sheet gripping means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/50—Gripping means
    • B65H2405/53—Rotary gripping arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/50—Gripping means
    • B65H2405/57—Details of the gripping parts
    • B65H2405/573—Pair of L-shaped reciprocating jaws

Definitions

  • the invention relates to a gripper for a flat material processing machine according to the preamble of claim 1.
  • processing machines are often used on a carrier-mounted gripper used, which serve to clamp an edge of a flat piece of material and thus to facilitate the transport and optionally the processing of the sheet (eg DE 19 00 057 A DE 43 30 610 A1).
  • a typical application is z.
  • a folder in which isolated from a printed web printed products are fed to a folding blade cylinder, held on the folding blade of grippers and guided to a gap between the folding blade and a jaw cylinder, extending through a folding blade extending out folding blade along a direction transverse to the conveying direction Line are inserted into a jaw of the jaw cylinder and then released from the gripper of the folding blade to allow their advancement in the folded state on the jaw cylinder.
  • the grippers of the folding blade cylinder are generally mounted on a gripper spindle which is mounted on the folding blade cylinder in the vicinity of its periphery and is pivotable to pinch a printed matter at the appropriate time or release.
  • a gripper spindle must perform quick, abrupt movements for clamping or releasing the printed product.
  • the invention has the object zurunde, a gripper for a flat material To create a processing machine whose function and use is improved.
  • the achievable with the present invention consist in particular in that the gripper has a high rigidity with low weight and therefore fast, abrupt pivotal movements of the gripper spindle can quickly follow.
  • This advantage is achieved by increasing the stiffness of the gripper relative to that of a simple sheet metal stamped gripper of similar dimensions by a bead extending along the stem of the gripper, between a base portion thereof for attachment to the gripper spindle, and a head portion for pressing the flat material, in particular paper, against a carrier extends.
  • the bead is preferably extended over the base portion.
  • Holes for attaching the gripper to the carrier are formed in the base portion of the bead. This allows attachment of the gripper by simply screwing with the aid of passing through the holes screws; a clamping by means of separate from the gripper to the spindle mounted clamp holders is not required.
  • the bead ends in front of a curved portion of the head.
  • the rigidity of this curved portion is therefore not as great as that of the stem, so that it is possible to compensate for any deviations between the positions of the tips of the gripper mounted on the spindle by a deformation of the head.
  • the thickness of the sheet from which the grippers are formed should not over 1.75 mm, preferably about 1.5 mm.
  • the grippers are preferably attached to a flattened longitudinal side of the gripper spindle, which largely the orientation of the gripper pretends.
  • Fig. 1 shows in Part A a side view of the gripper 01, z. B. hook hook 01, in Part B is an end view of the direction indicated in Fig. 1A with B direction and in Part C is a plan view of the direction indicated in Part A with C direction.
  • the hook hook 01 shown in FIGS. 1A to 1C is punched in one piece from a steel sheet of 1.5 mm thickness.
  • An elongated stem 02 connects a curved to a hook head portion 03 with a base portion 04.
  • a stiffening bead 06 extends over the base portion 04 and the stem 02 until shortly before the beginning of the curvature of the head portion 03.
  • the bead 06 is omitted in order to maintain a certain deformability of the head portion 03 even in the finished state of the hook hook 01, which makes it possible to align the tips exactly on a common line connecting all the tips when a plurality of the hook hooks 01 are mounted on a common support by deforming the head portions 03.
  • Fig. 2 shows a perspective view of a carrier 08, z. B. a gripper spindle 08, which carries a plurality of gripper hooks 01 shown in Fig. 1A to 1C. These gripper hooks 01 are each placed on a flattened longitudinal side 09 of the gripper spindle 08, so that they are all oriented in the plane of the longitudinal side 09, and firmly screwed.
  • the bead 06 makes it possible to produce the gripper hook 01 from a sheet of low thickness, without this being associated with losses in the dimensional stability of the hook hook 01 during operation. This not only saves material, but the compared to conventional; not gripped hooks low mass of the hook hook 01 ensures a low moment of inertia of the gripper spindle 08 and thus allows operation of the gripper spindle 08 at high speeds.
  • Another measure which reduces the moment of inertia of the gripper spindle 08 is the direct attachment of the gripper hooks 01 to the gripper spindle 08 by means of screws 11 guided through the holes 07. Conventional stirrups or similar gripping devices, each holding the gripper hook 01 between itself and the body hold the gripper spindle 08 clamped, are not provided here, so that their weight and moment of inertia falls away.
  • the grippers 01 can preferably be arranged in a cylinder of a folding apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Advancing Webs (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Tyre Moulding (AREA)

Claims (10)

  1. Dispositif de préhension (01) d'une machine de traitement de matériau plat, en particulier de papier, avec un tronçon de base (04) pour le montage sur un support (08) de la machine, un bras (02) et un tronçon de tête (03), formés d'une seuie pièce à partir d'une tôle, caractérisé en ce que, dans la tôle, est formé une moulure (06), au moins dans la direction longitudinale du bras (02) du dispositif de préhension (01).
  2. Dispositif de préhension (01) selon la revendication 1, caractérisé en ce que la moulure (06) s'étend en outre sur le tronçon de base (04).
  3. Dispositif de préhension (01) selon la revendication 2, caractérisé en ce que des trous (07) sont formés dans le tronçon de base (04), de part et d'autre de la moulure (06), pour la fixation du dispositif de préhension (01) sur le support (08).
  4. Dispositif de préhension (01) selon l'une des revendications précédentes, caractérisé en ce que la moulure (06) s'achève avant un tronçon incurvé du tronçon de tête (03).
  5. Dispositif de préhension (01) selon l'une des revendications précédentes, caractérisé en ce que l'épaisseur de la tôle n'est pas supérieure à 1,75 mm.
  6. Dispositif de préhension (01) selon la revendication 5, caractérisé en ce que l'épaisseur de la tôle est de préférence d'environ 1,5 mm.
  7. Machine pour le traitement de matériau plat, avec au moins un dispositif de préhension (01) selon la revendication 1, caractérisée en ce qu'une pluralité de dispositifs de préhension (01) sont disposés sur une broche à dispositifs de préhension (08) formant le support (08) de la machine.
  8. Machine selon la revendication 7, caractérisée en ce que les dispositifs de préhension (01) sont vissés directement sur la broche à dispositifs de préhension (08).
  9. Machine selon la revendication 7 ou 8, caractérisée en ce que les dispositifs de préhension (01) sont fixés sur un côté longitudinal (09) aplati de la broche à dispositifs de préhension (08).
  10. Appareil de pliage comprenant au moins un dispositif de préhension (01) selon l'une des revendications 7 à 9, caractérisée en ce que les dispositifs de préhension (01) sont disposés dans un cylindre de l'appareil de pliage.
EP03104392A 2003-01-22 2003-11-26 Dispositif de préhension d'une machine de traitement de feuilles plates Expired - Lifetime EP1440927B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10302289A DE10302289B3 (de) 2003-01-22 2003-01-22 Greifer für eine Flachmaterial verarbeitende Maschine
DE10302289 2003-01-22

Publications (2)

Publication Number Publication Date
EP1440927A1 EP1440927A1 (fr) 2004-07-28
EP1440927B1 true EP1440927B1 (fr) 2006-05-03

Family

ID=32185976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03104392A Expired - Lifetime EP1440927B1 (fr) 2003-01-22 2003-11-26 Dispositif de préhension d'une machine de traitement de feuilles plates

Country Status (3)

Country Link
EP (1) EP1440927B1 (fr)
AT (1) ATE325070T1 (fr)
DE (2) DE10302289B3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB725703A (en) * 1952-03-29 1955-03-09 Maschf Augsburg Nuernberg Ag Improvements in or relating to a device for removing sheets for inspection from the delivery pile of high-speed printing machines
DE1900057B2 (de) * 1968-01-03 1973-03-01 Adamovske Strojirny, N.P., Adamov (Tschechoslowakei) Greifereinrichtung eines kettenauslegers einer bogendruckmaschine
DE3623405A1 (de) * 1986-07-11 1988-02-04 Miller Johannisberg Druckmasch Bogengreifer fuer bogenverarbeitende maschinen
US5374093A (en) * 1991-12-10 1994-12-20 Am International Inc. Gripper assembly
DE4330610A1 (de) * 1993-09-09 1995-03-16 Roland Man Druckmasch Bogengreifer für eine Bogen verarbeitende Maschine

Also Published As

Publication number Publication date
DE10302289B3 (de) 2004-05-27
EP1440927A1 (fr) 2004-07-28
ATE325070T1 (de) 2006-06-15
DE50303183D1 (de) 2006-06-08

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