EP0351899B1 - Dispositif pour vider complètement des réservoirs d'encre à basse fluidité à grandes dimensions - Google Patents

Dispositif pour vider complètement des réservoirs d'encre à basse fluidité à grandes dimensions Download PDF

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Publication number
EP0351899B1
EP0351899B1 EP89201477A EP89201477A EP0351899B1 EP 0351899 B1 EP0351899 B1 EP 0351899B1 EP 89201477 A EP89201477 A EP 89201477A EP 89201477 A EP89201477 A EP 89201477A EP 0351899 B1 EP0351899 B1 EP 0351899B1
Authority
EP
European Patent Office
Prior art keywords
lateral wall
container
pressing plate
gasket
concave
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
EP89201477A
Other languages
German (de)
English (en)
Other versions
EP0351899A3 (fr
EP0351899A2 (fr
Inventor
Paolo Orlandi
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.)
TOTAL INCHIOSTRI S.P.A.
Original Assignee
TOTAL INCHIOSTRI SpA
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 TOTAL INCHIOSTRI SpA filed Critical TOTAL INCHIOSTRI SpA
Publication of EP0351899A2 publication Critical patent/EP0351899A2/fr
Publication of EP0351899A3 publication Critical patent/EP0351899A3/fr
Application granted granted Critical
Publication of EP0351899B1 publication Critical patent/EP0351899B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B67D7/0227—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants by an ejection plunger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/58—Arrangements of pumps
    • B67D7/62—Arrangements of pumps power operated
    • B67D7/64—Arrangements of pumps power operated of piston type
    • B67D7/645—Barrel pumps

Definitions

  • the present invention relates to a device for the total emptying of large-size containers for ink having a low degree of flowability.
  • Modern ink used in super-fast heat-set reel printing machines is notoriously characterized by a high degree of thixotropy and thus by extremely low qualities of flowability.
  • the system includes a piston pump operated by compressed air inserted directly from above into the container and integrally connected to a pressing plate forming a perfect airtight seal.
  • the plate has the function of scraping the walls of the container perfectly and promoting with its descent the feeding of the ink to the pump's intake mouth.
  • US-A-4632281 discloses a fluid dispensing system according to the preamble of claim 1.
  • EP-A-0227232 discloses a system for feeding ink from ink containers, which includes suction pumps and follower plates which move down the tanks as ink is consumed.
  • the concavity of the pressing plate's lateral wall is of a circular shape, and the annular gasket is stressed against the container's inner wall and in spaced relationship with the lateral wall of the container at both its end lips.
  • the gasket is accomplished in flexible PVC.
  • the gasket adapts easily to any ovalization of the container, it has a high adherence to the container's inner wall and, at the same time, it creates limited friction, which does not hamper the descent of the plate.
  • An appropriate size also ensures the pressing plate's unsinkability.
  • a further feature of the present invention is represented by the fact that the pressing plate is provided with a guide tube which extends axially upwards from the centre of the plate and slidably engages the top of the container.
  • the pressing plate can maintain itself constantly horizontal during its downward stroke.
  • the suction pump associated with the bottom of the container, below the pressing plate, provides for ink delivering and further assists in the descent of the pressing plate even in the case of some slight oozing of ink through the gasket's engagement area.
  • Fig. 1 shows a container 1, having a cylindrical lateral wall 2, a top wall 3 provided with a feed opening 4 having an openable cover 5, and a bottom wall 6 having a supply hole 7.
  • a conduit 8 which a flexible union 9 connects to the inlet of a piston pump 10 operated by a motor 11 and provided with an outlet conduit 12.
  • a pressing plate 13 Inside the container 1 there is slidably housed a pressing plate 13, with a lateral wall having circular concavity 14 (Fig. 2), wherein a flexible gasket in PVC 15 is inserted in the form of a cylindrical ribbon.
  • the gasket 15 is held by a clamp 16, which in combination with the above concavity confers on the gasket a corresponding concave shape which determines the friction contact between the gasket and the container's lateral wall only at two extreme lips 17 and 18.
  • the pressing plate is provided with a hole 24 with a vent valve 25 (Fig. 2).
  • the pressing plate 13 pushes the underlying ink contained in the container 1 towards the supply hole 7.
  • the ink is sucked up by the piston pump 10 and sent to the outlet conduit 12.
  • the gasket 15 is airtight with the container' s lateral wall 2 at the lips 17 and 18, thus limiting friction with the above wall 2.
  • the tube 21 together with the guide hole 22 ensures the constant horizontal disposition of the plate 13 during its descent.
  • the venting hole 24 with the valve 25 allows the air to be vented from under the plate 13 when required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Claims (4)

  1. Dispositif de vidange servant à vider entièrement des récipients de grande dimension destinés à contenir une encre ayant un faible degré de fluidité, qui comprend un plateau de pression (13) qui coulisse verticalement à l'intérieur du récipient (1) et est muni d'une paroi latérale concave (14) et d'une garniture d'étanchéité annulaire (15), laquelle entoure ledit plateau de pression (13) et possède une forme de section concave correspondante qui comprend une partie centrale tenue contre ladite paroi latérale concave (14) du plateau de pression (13) et deux lèvres terminales (17, 18) dont au moins une, la lèvre inférieure, est en contact frottant et de joint étanche avec une paroi latérale (2) du récipient, caractérisé en ce qu'il comprend aussi une pompe d'aspiration (10) interposée entre le fond (6) du récipient et un conduit de sortie (12), et ladite lèvre d'extrémité inférieure (17) de la garniture d'étanchéité annulaire (15) est pressée élastiquement contre ladite paroi latérale (2) du récipient (1) et espacée de ladite paroi latérale concave (14) du plateau de pression (13).
  2. Dispositif selon la revendication 1, caractérisé en ce que ladite garniture d'étanchéité (15) est faite de PVC.
  3. Dispositif selon la revendication 1, caractérisé en ce que ladite paroi latérale concave (14) du plateau de pression (13) possède une concavité circulaire et que ladite garniture d'étanchéité (15) est tenue dans cette paroi de manière à être pressée contre la paroi latérale (2) du récipient et à être espacée de la paroi latérale (14) du plateau de pression (13) au niveau de ses lèvres terminales inférieure (17) et supérieure (18).
  4. Dispositif selon la revendication 1, caractérisé en ce que ledit plateau de pression (13) est muni d'un tube de guidage (21) qui s'étend verticalement vers le haut en partant du centre du plateau et qui coulisse dans un trou de guidage (22) de la paroi supérieure du récipient.
EP89201477A 1988-07-22 1989-06-08 Dispositif pour vider complètement des réservoirs d'encre à basse fluidité à grandes dimensions Expired - Lifetime EP0351899B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8821449A IT1227418B (it) 1988-07-22 1988-07-22 Dispositivo per lo svuotamento totale di contenitori di grandi dimensioni per inchiostro a basso grado di scorrevolezza.
IT2144988 1988-07-22

Publications (3)

Publication Number Publication Date
EP0351899A2 EP0351899A2 (fr) 1990-01-24
EP0351899A3 EP0351899A3 (fr) 1991-01-02
EP0351899B1 true EP0351899B1 (fr) 1994-09-28

Family

ID=11181948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89201477A Expired - Lifetime EP0351899B1 (fr) 1988-07-22 1989-06-08 Dispositif pour vider complètement des réservoirs d'encre à basse fluidité à grandes dimensions

Country Status (4)

Country Link
EP (1) EP0351899B1 (fr)
AT (1) ATE112212T1 (fr)
DE (1) DE68918520T2 (fr)
IT (1) IT1227418B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009047862A1 (de) * 2009-09-30 2011-04-07 Technotrans Ag Farbfördersystem für hochviskose Medien

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5265773A (en) * 1991-05-24 1993-11-30 Kabushiki Kaisha Marukomu Paste feeding apparatus
JP3345653B2 (ja) * 1993-05-12 2002-11-18 谷電機工業株式会社 スクリーン版クリーニング装置
FR2749835B1 (fr) * 1996-06-12 1998-10-23 Total Raffinage Distribution Dispositif pour le stockage et le depotage integral de graisse
DE19731601A1 (de) * 1997-07-18 1999-01-21 Schmidt Gebr Druckfarben Anordnung zum Disponieren von hochviskosen Medien
EP1052217A1 (fr) * 1999-05-05 2000-11-15 Eftec Ag Dispositif d'aération pour conteneurs avec piston
DE202004009185U1 (de) * 2004-06-11 2005-10-27 Nordson Corp., Westlake Vorrichtung zum Austragen flüssiger Medien aus Behältern
DE102010062797A1 (de) * 2010-12-10 2012-06-14 Krones Aktiengesellschaft Verfahren und Vorrichtung zum aseptischen Abfüllen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0227232A2 (fr) * 1985-10-30 1987-07-01 Automation, Inc. Système de surveillance de l'encre

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838864A (en) * 1972-10-24 1974-10-01 Baldwin Gegenheimer Corp Mechanism for removing ink from ink containers
US4534493A (en) * 1983-08-03 1985-08-13 National Starch And Chemical Corporation Apparatus for dispensing high viscosity thermoplastic materials
US4632281A (en) * 1984-03-29 1986-12-30 Johnstone Pump Company Magnadrum pump assembly
US4635820A (en) * 1986-01-09 1987-01-13 Slautterback Corporation Bulk unloader of solidified thermoplastic material from pails and drums

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0227232A2 (fr) * 1985-10-30 1987-07-01 Automation, Inc. Système de surveillance de l'encre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009047862A1 (de) * 2009-09-30 2011-04-07 Technotrans Ag Farbfördersystem für hochviskose Medien

Also Published As

Publication number Publication date
ATE112212T1 (de) 1994-10-15
DE68918520T2 (de) 1995-02-23
IT1227418B (it) 1991-04-09
EP0351899A3 (fr) 1991-01-02
IT8821449A0 (it) 1988-07-22
DE68918520D1 (de) 1994-11-03
EP0351899A2 (fr) 1990-01-24

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