EP0569934B1 - Verpackungsmaschine mit einer mit Druckmedium beaufschlagten Einrichtung und einem gesteuerten Ventil - Google Patents

Verpackungsmaschine mit einer mit Druckmedium beaufschlagten Einrichtung und einem gesteuerten Ventil Download PDF

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Publication number
EP0569934B1
EP0569934B1 EP93107647A EP93107647A EP0569934B1 EP 0569934 B1 EP0569934 B1 EP 0569934B1 EP 93107647 A EP93107647 A EP 93107647A EP 93107647 A EP93107647 A EP 93107647A EP 0569934 B1 EP0569934 B1 EP 0569934B1
Authority
EP
European Patent Office
Prior art keywords
packaging machine
valve
machine according
control device
predetermined
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
EP93107647A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0569934A1 (de
Inventor
Johann Natterer
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.)
Multivac Sepp Haggenmueller GmbH and Co KG
Original Assignee
Multivac Sepp Haggenmueller 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 Multivac Sepp Haggenmueller GmbH and Co KG filed Critical Multivac Sepp Haggenmueller GmbH and Co KG
Publication of EP0569934A1 publication Critical patent/EP0569934A1/de
Application granted granted Critical
Publication of EP0569934B1 publication Critical patent/EP0569934B1/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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/021—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas the containers or wrappers being interconnected

Definitions

  • the invention relates to a packaging machine according to the preamble of claim 1.
  • Such a packaging machine is known for example from DE-A-1 931 924.
  • a packaging machine with a fluid-operated device is also known from FR-A-2 280 550.
  • the pressure medium-operated device is designed as a piston-cylinder device for moving the lower part up and down relative to an upper part of the tool stations located there. Pressure medium is applied until an end position or pressure is reached. Aeration is then performed by moving a valve.
  • the object of the invention is to provide a packaging machine of the type described in the introduction with which the pressurization takes place in a predetermined manner in such a way that damping is possible at the end of a pressure supply section.
  • the vacuum packaging machine shown in FIG. 1 holds a machine frame 1, from which a first work station 2 designed as a deep-drawing station, a second work station 3 designed as an evacuation and sealing station and a third work station 4 designed as a cutting device are carried.
  • Each of the work stations has an upper part 5 and a lower part 6 which can be moved up and down relative to this.
  • the lower part is moved up and down by a piston-cylinder device 7 directly or indirectly via an additional transmission device.
  • the piston-cylinder device has, in a known manner, a first chamber space 8 and a second chamber space 9, both of which can be connected to a compressed air source 11 or to the environment via a valve 10.
  • a motion sensor 12 is provided on the piston-cylinder device. This detects the speed of movement of the piston.
  • a controller 13 is provided. This is connected on the input side to the output of the motion sensor 12. The control is connected on the output side to the valve 10.
  • the valve 10 is designed as follows: In the position shown, the first chamber chamber 8 facing away from the piston is with compressed air and the second chamber chamber opposite 9 connected to the environment. In this position, the piston is moved towards the upper part 5 by the compressed air supplied in the direction of arrow 14. In the second valve position, the first chamber space 8 is vented, while the second chamber space 9 is connected to the compressed air line. In this position, the piston is moved from its extended position into the retracted position and thus the lower part 6 is moved back into the lowered position.
  • the valve is designed so that a third switching position is possible, in which both the first chamber space and the second chamber space are hermetically sealed, so that when the piston is moving, damping of the movement or a standstill is achieved when a balance is formed.
  • compressed air is first led into the first chamber space 8 in the position shown, so that the piston is moved in the direction of arrow 14.
  • a short time in one fraction or several seconds, preferably in the order of 50 milliseconds, into the third period Valve position so that the movement is dampened.
  • the approach of the piston in the retracted position it is possible to achieve a damped approach of the piston and thus of the lower part of the work station to the upper part or the frame supporting the lower part, with a constant supply of pressure medium, whereby the service life of the work station is significantly increased.
  • the deep-drawing station 15 comprises an upper part 16 and a lower part 17 cooperating therewith.
  • a film 18 to be deformed into a packaging container is clamped between the two.
  • a supply line 19 connected to a compressed air source 11 opens into the interior of the upper part.
  • a control valve 21 is provided between the compressed air source.
  • the control valve is connected at its control inputs to control outputs of a controller 22.
  • the control is in turn connected on the input side to a pressure measuring device 23, the output signal of which is fed to an input of the control 22.
  • the space above the film 18 to be deformed is pressurized with compressed air, so that the film is deformed in the direction of the arrows shown due to the pressure difference to the lower chamber.
  • the space above the film 18 is vented via the valve 21.
  • the valve can be moved into a third position, in which the line 19 is hermetically sealed.
  • the control is designed such that it changes over to the third position for one or more brief moments as a function of a given presetting when a certain pressure is reached inside the chamber above the film 18 to be deformed, so that the pressure supply is damped.
  • control is designed so that it holds the valve in the third position for a predetermined period of time, depending on a presetting when a predetermined final pressure is reached inside the chamber above the film to be deformed, so that the set pressure difference over a predetermined period of time remains and the deformation of the film stabilizes. Only after this period has elapsed does the control switch the valve to the second position for ventilation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vacuum Packaging (AREA)
  • Machine Tool Units (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Fluid-Pressure Circuits (AREA)
EP93107647A 1992-05-15 1993-05-11 Verpackungsmaschine mit einer mit Druckmedium beaufschlagten Einrichtung und einem gesteuerten Ventil Expired - Lifetime EP0569934B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4216208A DE4216208C2 (de) 1992-05-15 1992-05-15 Verpackungsmaschine mit einem Ventil und einer Steuerung zum Steuern des Ventils
DE4216208 1992-05-15

Publications (2)

Publication Number Publication Date
EP0569934A1 EP0569934A1 (de) 1993-11-18
EP0569934B1 true EP0569934B1 (de) 1996-10-23

Family

ID=6459038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107647A Expired - Lifetime EP0569934B1 (de) 1992-05-15 1993-05-11 Verpackungsmaschine mit einer mit Druckmedium beaufschlagten Einrichtung und einem gesteuerten Ventil

Country Status (3)

Country Link
EP (1) EP0569934B1 (es)
DE (2) DE4216208C2 (es)
ES (1) ES2095515T3 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8091322B2 (en) * 2007-07-06 2012-01-10 Multivac Sepp Haggenmueller Gmbh & Co. Kg Packaging machine and method for producing packages made of a film

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005038357A1 (de) * 2005-08-11 2007-02-15 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsmaschine mit wenigstens einem Pneumatikantrieb

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509686A (en) * 1968-06-27 1970-05-05 Anderson Bros Mfg Co Apparatus for packaging in protective atmosphere
FR2280550A1 (fr) * 1974-08-01 1976-02-27 Multivac Haggenmueller Kg Machine a emballer sous vide pour la fabrication d'emballages scelles
DE3404451A1 (de) * 1984-02-08 1985-08-14 Multivac Sepp Haggenmüller KG, 8941 Wolfertschwenden Verpackungsmaschine mit einer versiegelungsstation
DE3411917A1 (de) * 1984-03-30 1985-10-03 Multivac Sepp Haggenmüller KG, 8941 Wolfertschwenden Verfahren und vorrichtung zum verpacken von gegenstaenden

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8091322B2 (en) * 2007-07-06 2012-01-10 Multivac Sepp Haggenmueller Gmbh & Co. Kg Packaging machine and method for producing packages made of a film

Also Published As

Publication number Publication date
DE4216208A1 (de) 1993-11-18
ES2095515T3 (es) 1997-02-16
DE59304246D1 (de) 1996-11-28
DE4216208C2 (de) 1997-02-13
EP0569934A1 (de) 1993-11-18

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