EP0453985A2 - Vorrichtung zum Ueberführen von Blättern mit einem Saugtisch in einer Maschine zum Herstellen von Packungen - Google Patents

Vorrichtung zum Ueberführen von Blättern mit einem Saugtisch in einer Maschine zum Herstellen von Packungen Download PDF

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Publication number
EP0453985A2
EP0453985A2 EP91106312A EP91106312A EP0453985A2 EP 0453985 A2 EP0453985 A2 EP 0453985A2 EP 91106312 A EP91106312 A EP 91106312A EP 91106312 A EP91106312 A EP 91106312A EP 0453985 A2 EP0453985 A2 EP 0453985A2
Authority
EP
European Patent Office
Prior art keywords
nozzles
suction
transfer
tube
sheet
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
EP91106312A
Other languages
English (en)
French (fr)
Other versions
EP0453985A3 (en
EP0453985B1 (de
Inventor
Jean-Claude Rebeaud
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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 Bobst SA filed Critical Bobst SA
Publication of EP0453985A2 publication Critical patent/EP0453985A2/de
Publication of EP0453985A3 publication Critical patent/EP0453985A3/fr
Application granted granted Critical
Publication of EP0453985B1 publication Critical patent/EP0453985B1/de
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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/12—Suction bands, belts, or tables moving relatively to the pile
    • B65H3/122—Suction tables

Definitions

  • the present invention relates to a device for transferring, in a machine for working sheet or sheet elements for the production of packaging, the lower sheet of a packet of sheets to a next work station, according to the preamble of claim 1.
  • Patent CH-A-440337 describes a transfer table provided with telescopic suction cups thanks to the effect of a pressure difference produced in two chambers of the body of each suction cup connected to a vacuum pump. Subsequently, it has also proved expedient to connect, at the end of the transfer of the sheet, each suction cup to a pressure source to accelerate the separation of the sheet from the suction table in order to be able to increase the production rates.
  • each suction cup of the movable table is connected by flexible pipes to a fixed valve with rotary distribution valve alternately putting the nozzle in ambient air or under suction.
  • a suction table provided with several suction holes.
  • the movable table is connected to a longitudinal distribution casing, not by a flexible duct but by a hollow cylindrical tube fixed to the table frame, communicating with all the suction holes and being able to slide, during the transfer of a sheet, inside a corresponding bore of the timing cover.
  • the bore is provided with two longitudinally spaced orifices intended to connect the suction holes alternately to a suction source or to ambient air.
  • the present invention therefore aims to eliminate, in a sheet transfer table, the drawbacks described above. This object is achieved thanks to a table according to claim 1.
  • the transfer device comprises a movable part consisting of the actual table 1 and of a fixed rear part consisting of a casing 2 (shown in broken lines in FIG. 1) for distributing pressure and suction.
  • On the upper face of the table 1 opens a first group of five large nozzles 3 located at the rear (relative to the direction of movement of the table during transfer) and twenty-eight small nozzles 4 located at the front.
  • the table consists of a hollow frame B, the upper face of which is closed by a plate P forming the actual table 1 (see FIGS. 3 to 5) and on the surface of which open the nozzles 3, 4.
  • each large nozzle 4 essentially consists of a first tube 30 screwed onto an inner rib of the hollow frame B, of a second fixed tube 31 and surrounding the first tube 30, a third tube 32 surrounding the second tube 31 the along which it can slide. Between the first 30 and the second 31 tube is provided a first sealed chamber 33. Between the second 31 and the third 32 tube is provided a second sealed chamber 34. The top of the third tube 32 is provided with an elastic suction cup 37.
  • the interior of the first tube 30 is connected, on the one hand, to a main duct 10 for pressure and suction distribution provided inside the frame B and common to all the large nozzles 4 and, on the other hand, by a radial orifice 35 to the first sealed chamber 33 which is itself connected, by a radial orifice 36 formed on the second tube 31, to the second sealed chamber 34.
  • a pressure difference occurs between the two chambers 33 and 34 which causes an upward displacement of the third tube 32 and therefore of the elastic suction cup 37 which can thus move, from the position in solid lines in FIG.
  • the function of the large nozzles 3 is to pick up the bottom sheet of the package and pull it downwards to lay it on the table 1.
  • the small nozzles 4 have a construction and operating mode which is roughly similar, but simplified, to that of the large nozzles 3 (see FIG.
  • each small nozzle 4 also has a telescopic tube 40, surmounted of an elastic suction cup 41, which can occupy a first level position with the plate P and a second position (shown in broken lines) located below of level N since the small nozzles 4 must go beyond the gauge of the package.
  • the body of each small nozzle 4 also includes a sealed chamber 42 between the telescopic tube 40 and a fixed tube 45 mounted inside the hollow frame B, the two tubes 40, 45 and the chamber being connected, by corresponding passages 44, 43, to a main pressure or suction pipe 11 common to all the small nozzles 4.
  • the small telescopic nozzles or suction cups 4 have the function of fetching curved parts of the sheet which has previously been separated from the package and plated on plate P by the large suction cups 3.
  • the first guide tube G1 which serves, as will be seen later, for the distribution of pressure to small and large suction cups, is provided with an opening or radial light L1 located at the rear and communicating with each conduit main 10, 11 of the small and large nozzles 3, 4.
  • the second guide tube G2, which is used for the distribution of the suction to the large suction cups 3, is provided with a radial light L2 located at the front and communicating with the main duct 10 of the large suction cups 3.
  • the third guide tube G3, which is used for the distribution of the suction to the small suction cups 4, is provided with a radial lumen L3 located at the front and communicating with the main duct 11 small suction cups 4.
  • the casing 2 comprises a suction inlet chamber AS, connected by a conduit 200 to a source of vacuum (not shown), and a pressure inlet chamber PS connected by a conduit 210 to a pressure source (not shown).
  • the casing 2 also comprises three outlet chambers S1 to S3 each of which is connected to a hollow cylindrical conduit T1 to T3, respectively, emerging from the casing 2 and each penetrating inside one of the three guide tubes G1 to G3 .
  • the fixed casing 2 and the movable table 1 are arranged so that the cylindrical conduits T1 to T3 can slide in leaktight and free manner inside the guide tubes G1 to G3 according to a stroke at least equal to that necessary for the transfer of a sheet.
  • the frame B of the table 1 is provided with guide sleeves 90 which can slide along bars 91 fixed on a support 92.
  • a first suction groove R a which, depending on the angular position of the shaft D, can connect the suction inlet chamber AS to the outlet chambers S2 and S3.
  • a groove R p intended, depending on the angular position of the shaft D, to connect the pressure inlet chamber PS to the outlet chamber S criz.
  • auxiliary grooves R1, R2, respectively R3 are produced, each connected to the interior volume of the hollow shaft by radial orifices O1 to O3 respectively.
  • the first cylindrical duct T1 is provided with at least one radial lumen L4 located on the open front end and intended to come, when the table 1 is in the front part of the transfer stroke, opposite the lumen L1 of the guide tube G1 for connecting the interior of this conduit T1 to the common conduits 10 and 11 of the large and small nozzles 3, 4.
  • the second cylindrical conduit T2 is provided, at its closed front end, with a radial lumen L5 intended for come, when the table 1 is in the rear part of the transfer stroke, opposite the light L2 of the guide tube G2 in order to connect the interior of this conduit T2 to the common conduit 10 of the large nozzles 3.
  • the third cylindrical conduit T3 is provided, at its closed front end, with a light L6 intended to come, when the table 1 is in the rear part of the transfer stroke, opposite the light L3 of the third guide tube G3 in view of connect the interior of this conduit T3 to the common conduit 11 of the small nozzles 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Making Paper Articles (AREA)
EP91106312A 1990-04-25 1991-04-19 Vorrichtung zum Ueberführen von Blättern mit einem Saugtisch in einer Maschine zum Herstellen von Packungen Expired - Lifetime EP0453985B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1405/90A CH682395A5 (fr) 1990-04-25 1990-04-25 Dispositif de transfert de feuille muni d'une table aspirante dans une machine de production d'emballages.
CH1405/90 1990-04-25

Publications (3)

Publication Number Publication Date
EP0453985A2 true EP0453985A2 (de) 1991-10-30
EP0453985A3 EP0453985A3 (en) 1992-12-23
EP0453985B1 EP0453985B1 (de) 1994-09-21

Family

ID=4209670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106312A Expired - Lifetime EP0453985B1 (de) 1990-04-25 1991-04-19 Vorrichtung zum Ueberführen von Blättern mit einem Saugtisch in einer Maschine zum Herstellen von Packungen

Country Status (9)

Country Link
US (1) US5163667A (de)
EP (1) EP0453985B1 (de)
JP (1) JP2620825B2 (de)
AT (1) ATE111864T1 (de)
CA (1) CA2039867C (de)
CH (1) CH682395A5 (de)
DE (1) DE69104112T2 (de)
DK (1) DK0453985T3 (de)
ES (1) ES2058975T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153053A1 (en) * 2016-03-07 2017-09-14 Bobst Mex Sa Device for gas and/or vacuum distribution, suction unit, feeder, sheet processing machine and method for piloting a device for gas and/or vacuum distribution

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10253788A1 (de) * 2001-12-10 2003-06-18 Heidelberger Druckmasch Ag Vorrichtung zur Zufuhr von Saugluft oder Blasluft in einer bogenverarbeitenden Maschine
JP6026317B2 (ja) * 2013-02-27 2016-11-16 株式会社東芝 紙葉類の取出し装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR394549A (de) *
GB943359A (en) * 1961-11-11 1963-12-04 Deritend Eng Co Improvements relating to suction feed mechanism for corrugated and like cardboard
US3202420A (en) * 1963-05-29 1965-08-24 Norman E Dovey Vacuum feeding device
CH440337A (fr) * 1966-07-29 1967-07-31 Bobst Fils Sa J Mécanisme de transfert d'une feuille dans une machine
US3994490A (en) * 1975-05-30 1976-11-30 Uniplex, Inc. Sheet feeding mechanism
US4089518A (en) * 1976-02-24 1978-05-16 Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen Sheet-handling apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017153053A1 (en) * 2016-03-07 2017-09-14 Bobst Mex Sa Device for gas and/or vacuum distribution, suction unit, feeder, sheet processing machine and method for piloting a device for gas and/or vacuum distribution
RU2711518C1 (ru) * 2016-03-07 2020-01-17 Бобст Мекс Са Машина для обработки листов с устройством для распределения газа и/или вакуума и способ управления устройством для распределения газа и/или вакуума
US11325797B2 (en) 2016-03-07 2022-05-10 Bobst Mex Sa Device for gas and/or vacuum distribution, suction unit, feeder, sheet processing machine and method for piloting a device for gas and/or vacuum distribution

Also Published As

Publication number Publication date
JPH04226334A (ja) 1992-08-17
DK0453985T3 (da) 1995-02-20
CA2039867C (en) 1994-09-13
US5163667A (en) 1992-11-17
JP2620825B2 (ja) 1997-06-18
CA2039867A1 (en) 1991-10-26
ES2058975T3 (es) 1994-11-01
DE69104112D1 (de) 1994-10-27
DE69104112T2 (de) 1995-01-19
EP0453985A3 (en) 1992-12-23
ATE111864T1 (de) 1994-10-15
CH682395A5 (fr) 1993-09-15
EP0453985B1 (de) 1994-09-21

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