EP0737639A2 - Table de transfert - Google Patents

Table de transfert Download PDF

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Publication number
EP0737639A2
EP0737639A2 EP96101217A EP96101217A EP0737639A2 EP 0737639 A2 EP0737639 A2 EP 0737639A2 EP 96101217 A EP96101217 A EP 96101217A EP 96101217 A EP96101217 A EP 96101217A EP 0737639 A2 EP0737639 A2 EP 0737639A2
Authority
EP
European Patent Office
Prior art keywords
shaft
transfer table
elements
sheet
ring elements
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.)
Withdrawn
Application number
EP96101217A
Other languages
German (de)
English (en)
Other versions
EP0737639A3 (fr
Inventor
Georg-Dietrich Dannemann
Matthias Krause
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.)
MBO Postpress Solutions GmbH
Original Assignee
Maschinenbau Oppenweiler Binder GmbH and Co KG
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 Maschinenbau Oppenweiler Binder GmbH and Co KG filed Critical Maschinenbau Oppenweiler Binder GmbH and Co KG
Publication of EP0737639A2 publication Critical patent/EP0737639A2/fr
Publication of EP0737639A3 publication Critical patent/EP0737639A3/fr
Withdrawn legal-status Critical Current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
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/02—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains
    • B65H5/021—Feeding articles separated from piles; Feeding articles to machines by belts or chains, e.g. between belts or chains by belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/16—Delivering or advancing articles from machines; Advancing articles to or into piles by contact of one face only with moving tapes, bands, or chains

Definitions

  • the invention relates to a transfer table for sheets that can be positioned between two stations of a sheet-processing machine.
  • Such a known transfer table has two shafts arranged at a distance from one another and axially parallel and mounted on the table side.
  • One of the shafts is provided with a rotary drive.
  • spherical rollers are arranged axially at a distance from one another in a rotationally fixed manner, the outer diameter of which corresponds essentially to that of the other shaft.
  • the rollers can be moved axially on the shaft and can be fixed in any axial position. This process, namely loosening the clamp, moving the roll and re-clamping the roll, requires the machine to come to a standstill.
  • Endless belts for sheet transport run around one cylindrical shaft and the spherical rollers of the other shaft. Because of the outer circumferential crowning of the rollers, the endless belts align themselves when circulating, as they have a tendency to run towards the crowning crown.
  • the object on which the invention is based is to reduce the transfer height or jump height on the shaft of the transfer table on the sheet discharge side as far as possible.
  • This task is accomplished by means of a transfer table for sheets that can be positioned between two stations of a sheet-processing machine, with two shafts that are spaced apart from one another and parallel to the axis and that are mounted on the table side, with a rotary drive for a shaft, with axially spaced, circumferentially spherical guide elements on a shaft, and with around the guide elements of the one shaft and the other shaft arranged for a revolution endless belts for the sheet transport according to the invention solved in that the guide elements of the one shaft are so far projecting over their circumferential surface ring elements that they push the belt in the axial direction of the one shaft allow.
  • the diameter of the shaft which is usually arranged on the sheet discharge side, can be limited to the minimum specified for reasons of strength, as a result of which the transfer height or jump height can be reduced by more than half compared to the known transfer table.
  • the ring elements can be a piece with elements with a bead-shaped cross-section that form them. They can be fitted or glued to the one shaft, having the shape of a torus with a substantially semicircular cross section can. It can also be used rubber O-rings that are easy to use in circumferential grooves and with a curved spherical surface protrude so far over the circumferential surface of the shaft that they directly above the circumferential surface of the shaft have a crowning required for belt alignment, ie a convex Have curvature with a vertex, but without hindering a displacement of the belt in the axial direction of the shaft.
  • the endless belts have to be repositioned axially to adapt to a different sheet format, it is sufficient to apply lateral pressure to them while the belts are running, which can be done by hand.
  • the corresponding belt then shifts in the axial direction with respect to the shafts of the transfer table.
  • the ring elements protrude about 0.5 to 3 mm over the circumferential surface of the shaft on the sheet discharge side. If O-rings are used, the depth of the circumferential grooves is selected depending on the thickness of the O-rings, and, as mentioned above, the minimum diameter is determined by the required strength of the shaft.
  • the width of the circumferential grooves can be between 1 and 5 mm. The distances between the circumferential grooves are determined in accordance with the selected belt widths.
  • the sheet feed direction is indicated by the arrow 16.
  • the transfer table 10 has a shaft 11 on the sheet feed side and a shaft 12 on the sheet discharge side.
  • the direction of rotation of the shaft 11 is indicated by the arrow 17.
  • Endless belts 13 are arranged at an axial distance around the shafts 11 and 12 under appropriate pretension.
  • a shaft drive, not shown, is assigned to the shaft 11.
  • the shaft 12 on the sheet discharge side has a diameter which is considerably reduced compared to the diameter of the shaft 11 on the sheet supply side, the lower limit of the diameter being predetermined by the required strength.
  • circumferential grooves 14 are cut out axially at selected intervals.
  • rubber O-rings 14 are inserted into the circumferential grooves, the outer circumferential surface of which protrude slightly beyond the circumferential surface of the shaft 12 on the sheet discharge side. Because of the cross-sectional shape of the O-rings, they have a vertex 18 running along a circumferential line, with respect to which the circumferential endless belts 13 each have a known manner break in.
  • the diameter of the sheet discharge side shaft 12 only depends on the required strength, its diameter can be selected to be relatively small, so that the transfer height, which is denoted by h in Fig. 1, can be reduced to the possible optimum.
  • This reduction in the transfer height h which is also referred to as the jump height, largely prevents the directional and positional stability of the conveyed sheets from being impaired.
  • the ring elements 15 have a cross section in the form of a segment of a circle or a semicircle and are fixed on the circumferential surface of the one shaft 12 by a snug fit or an adhesive bond.
  • the ring elements 15 are formed in one piece with the one shaft 12 by machining or in investment casting and protrude like a bead over their circumferential surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
EP96101217A 1995-04-10 1996-01-29 Table de transfert Withdrawn EP0737639A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19513622 1995-04-10
DE1995113622 DE19513622C2 (de) 1995-04-10 1995-04-10 Überleittisch

Publications (2)

Publication Number Publication Date
EP0737639A2 true EP0737639A2 (fr) 1996-10-16
EP0737639A3 EP0737639A3 (fr) 1997-09-24

Family

ID=7759422

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101217A Withdrawn EP0737639A3 (fr) 1995-04-10 1996-01-29 Table de transfert

Country Status (2)

Country Link
EP (1) EP0737639A3 (fr)
DE (1) DE19513622C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6269995B1 (en) 1998-04-29 2001-08-07 Gerber Scientific Products, Inc. Friction drive apparatus for strip material
US6283655B1 (en) 1998-06-30 2001-09-04 Gerber Scientific Products, Inc. Friction-feed plotter with laterally-movable drive roller, and related method for plotting on sheets of different widths
US6637634B1 (en) 1998-12-21 2003-10-28 Gerber Scientific Products, Inc. Methods for calibration and automatic alignment in friction drive apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE402158C (de) * 1922-08-31 1924-09-15 Franz Hinterdorfer Bogenanlegevorrichtung
US2205921A (en) * 1938-09-24 1940-06-25 Lindbladh Corp Sheet feeding machine
DE2509276A1 (de) * 1975-03-04 1976-09-09 Maschf Augsburg Nuernberg Ag Vorrichtung zum passergerechten anlegen von bogen in bogenrotationsdruckmaschinen
DE2925436A1 (de) * 1979-06-23 1981-01-22 Mabeg Maschinenbau Gmbh Nachf Anlegetisch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE402158C (de) * 1922-08-31 1924-09-15 Franz Hinterdorfer Bogenanlegevorrichtung
US2205921A (en) * 1938-09-24 1940-06-25 Lindbladh Corp Sheet feeding machine
DE2509276A1 (de) * 1975-03-04 1976-09-09 Maschf Augsburg Nuernberg Ag Vorrichtung zum passergerechten anlegen von bogen in bogenrotationsdruckmaschinen
DE2925436A1 (de) * 1979-06-23 1981-01-22 Mabeg Maschinenbau Gmbh Nachf Anlegetisch

Also Published As

Publication number Publication date
DE19513622A1 (de) 1996-10-24
EP0737639A3 (fr) 1997-09-24
DE19513622C2 (de) 1998-09-24

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