EP0279409A1 - Soupape de remplissage - Google Patents

Soupape de remplissage Download PDF

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Publication number
EP0279409A1
EP0279409A1 EP88102222A EP88102222A EP0279409A1 EP 0279409 A1 EP0279409 A1 EP 0279409A1 EP 88102222 A EP88102222 A EP 88102222A EP 88102222 A EP88102222 A EP 88102222A EP 0279409 A1 EP0279409 A1 EP 0279409A1
Authority
EP
European Patent Office
Prior art keywords
valve according
filling valve
filling
piston
housing
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Withdrawn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
EP88102222A
Other languages
German (de)
English (en)
Inventor
Manfred Nordmeyer
Helmut Grüne
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.)
Lieder Maschinenbau GmbH and Co KG
Original Assignee
Lieder Maschinenbau 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 Lieder Maschinenbau GmbH and Co KG filed Critical Lieder Maschinenbau GmbH and Co KG
Publication of EP0279409A1 publication Critical patent/EP0279409A1/fr
Withdrawn legal-status Critical Current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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/004—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/001—Cleaning of filling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/20—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus with provision for metering the liquids to be introduced, e.g. when adding syrups
    • B67C3/206—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus with provision for metering the liquids to be introduced, e.g. when adding syrups using arrangements of cylinders and pistons

Definitions

  • the invention relates to a filling valve for filling flowable masses with a closing piston arranged in a housing, which has at least one closing edge, which is arranged in the area of at least one filling opening arranged in a controllable manner in the housing.
  • Filling valves of this type are used, for example, to fill liquid filling products into suitable containers. So they can be used to fill milk in dosed quantities in packaging units, for example cups. In addition, however, a mixture of several partial products can also be considered as a filling product, for example stirred yoghurt or yoghurt with fruits.
  • the filling valves previously used for this purpose have a closing piston which can be moved essentially in the vertical direction through a housing.
  • the closing piston is moved out of a filling opening in the direction of the vessel to be filled out of the housing.
  • the closing piston is pulled back into the housing.
  • a stream of the material to be filled emerging through the filling opening is to be sheared off from correspondingly designed edges of the closing piston within the filling opening.
  • the object of the present invention is therefore to improve a filling valve of the type mentioned in the introduction so that it enables an exact limitation of the filling process.
  • closure edge is movably arranged transversely to the direction of the mass passing through the filling opening.
  • This movement of the sealing edge transversely to the direction of the mass passing through the filling opening ensures that the sealing edge can be guided very securely during the sealing process.
  • a deflection of the sealing edge within the filling opening is also not possible if a fixed component of the mass to be filled should get caught between the sealing edge and the filling opening. This fixed component is sheared off with a high degree of certainty from the precisely guided locking edge.
  • the exact guidance of the closing edge is made possible, inter alia, by the fact that the dimensions of the closing piston, which are transverse to the direction of the mass passing through the filling opening, are very rigid and well guided in the housing. In contrast, the piston guided downward out of the housing is not guided outside the housing.
  • the housing and the locking piston arranged in it have axes running essentially in the vertical direction and the locking piston is mounted so as to be pivotable about its axis.
  • the filling valves with their axes running in the vertical direction have so far been used with pleasure for the filling of flowable masses, since they enable the masses to be filled to pass through their area largely free of deflections.
  • the axis of which is arranged essentially in the horizontal direction several deflections of the goods to be filled have to be accepted. These redirections are harmless for many products, but not for some. For example, dairy products must be packaged very carefully without having to be redirected several times while applying pressure.
  • a filling valve essentially consists of a housing (1), a closing piston (2), a metering cylinder (3) and a metering piston (4).
  • the locking piston (2) is rotatably mounted in the housing (1).
  • the housing (1) and the locking piston (2) have a common axis (5) around which the locking piston (2) can be pivoted within the housing (1). This axis (5) runs essentially in the vertical direction.
  • the dosing cylinder (3) which runs essentially in the horizontal direction, is connected to the housing (1) in a liquid-tight manner via seals (6) perpendicular to this axis (5).
  • Within the Dosing cylinder (3) is arranged in the longitudinal direction of the dosing piston (4).
  • the piston rod (7) has a coupling (9), via which the piston rod (7) can be coupled to a drive, not shown, which is suitable for driving the metering piston (4) in the longitudinal direction of the metering cylinder (3 ) to move.
  • the dosing cylinder (3) opens into the housing (1) in the area of a dosing chamber (1o).
  • This metering chamber (1o) is essentially formed in the housing (1).
  • the closing piston (2) has a reduced cross section compared to an interior (11) formed in the housing (1).
  • an annular space (12) is formed in the interior (11) between this and a surface (13) adjacent to it, in which a mass (14) to be filled by the filling valve can collect before it enters a filling opening (15) filling vessel (16) is introduced.
  • An inlet channel (17) opens into the metering chamber (1o) and extends through the closing piston (2) at an angle to the axis (5) in a direction away from the vessel (16).
  • This inlet channel (16) opens via a connection (18) into a storage container (19) in which the mass (14) is for the purpose of filling.
  • the connection (18) penetrates the housing (1), on which it forms an inlet opening (2o).
  • the inlet channel (17) opens into the closing piston (2) via an inlet opening (21).
  • the inlet opening (21) is enclosed by an inlet closing edge (22) which, when the closing piston (2) rotates about its axis (5), is guided closely on an inner surface (23) of the housing (1) adjacent to the inlet opening (21).
  • two filling channels (24, 25) open into the annular space (12) via an outlet (26).
  • This outlet (26) is designed as a recess in the closing piston (2), which points in the open position of the filling valve in the direction of the metering chamber (1o) and is connected to it.
  • the filling channels (24, 25) extend essentially from the outlet (26) in the vertical direction in the direction of the filling openings (15) with which they are aligned in the open position of the filling valve.
  • the filling channels (24, 25) can be arranged obliquely to the axis (5) and run in a V-shape.
  • the housing (1) is closed off by a base (31) through which the two filling openings (15, 15a) extend.
  • This floor (31) is provided on its inner surface (32) facing the interior (11) with a fine machining that eliminates all unevenness.
  • a corresponding fine machining has a surface (33) of the closing piston (2) which acts on the inner surface (32) and which carries this at its end facing the lower end (3o).
  • the surface (33) is guided on the inner surface (32) when the closing piston (2) executes pivoting movements about its axis (5) within the interior (11). During these pivoting movements, mouth openings (34, 34a), in which the filling channels (24, 25) open in the surface (33), are guided directly above the filling openings.
  • the mouth openings (34, 34a) are surrounded by a closing edge (35).
  • This closing edge (35) is so sharp that it is able to to shear off a stream of mass (14) extending through the filling opening (15) even if this mass (14) contains relatively solid components.
  • the orifices (34, 34 a) are arranged with respect to the filling openings (15) in such a way that only a quantity of the mass (14) emerges from the filling openings (15) which is present in the metering chamber (1o).
  • the inlet channel (17) must be closed with respect to the inlet opening (2o) during the opening of the filler openings (15, 15a).
  • the filling openings (15, 15a) must be open longer than there is a connection between the inlet opening (2o) and the inlet channel (17).
  • the inlet opening (21) lies on a larger radius of the closing piston (2) than the opening opening (34, 34a) of the filling channels (24, 25). In this way, with the same angle of rotation of the closing piston (2), the inlet mouth (21) travels a greater distance than the mouth openings (34, 34a).
  • a timely closure of the inlet mouth (21) is also achieved in that this inlet mouth (21) is limited to a substantially smaller circumferential angle of a conical sealing surface (44) of the closing piston (2) than the mouth openings (34, 34a).
  • the inlet mouth (21) is limited to a circumferential angle, the size of which corresponds to two thirds of the angle, on the legs of which the mouth openings (34, 34) are arranged.
  • the diameter of the closing piston in the area of the inlet mouth (29) is approximately twice as large as in the area of the mouth opening (34, 34a)
  • the swiveling movements carried out by the closing piston (2) have the same angular deflection Entry opening (2o) is closed with certainty when the fill opening (15, 15a) are open.
  • the mouth openings (34, 34a) are displaced with respect to the filler openings (15) by an angle of rotation of the locking piston (2) of more than 90 ° when the locking piston (2) is in a position in which the inlet mouth (21) is also the inlet mouth (2o) is aligned.
  • the locking piston (2) is guided in the housing (1) at various points in slide bearings (36, 37, 39).
  • the slide bearing (36) is formed in a lower part of the interior (11) adjacent to the filling openings (15, 15a).
  • This lower part (4o) has a cylindrical inner wall (41) which is acted upon by an outer cylinder (42) formed on the closing piston (2).
  • the closing piston (2) is guided in the axial direction with the surface (33) closing it downward on the inner surface (32).
  • the plain bearing (37) is arranged on an upper boundary of the metering chamber (1o) facing away from the plain bearing (36).
  • This slide bearing (37) has a cylindrical sliding surface (43) which is mounted on a corresponding inner cylinder provided in the housing (1).
  • This inner cylinder is formed by the walls of the interior (11). Due to the large-area storage in the slide bearings (36, 37) provided on both sides of the metering chamber (1o), migration of the closing piston (2) during the execution of filling operations is prevented.
  • the closing piston (2) is also guided on a top side of the cylindrical sliding surface (43) facing away from the metering chamber (1o) in the sealing surface (44) with little play.
  • This sealing surface (44) is conical on the closing piston (2).
  • the closing piston (2) has a cross section which widens continuously from the cylindrical sliding surface (43) in the direction of an upper end (45) of the closing piston (2) facing away from the sliding bearing (37).
  • This conical sealing surface (44) is sealingly fitted on a conical inner surface (46) designed accordingly.
  • This conical inner surface is formed in the housing (1).
  • the inlet opening (21) is formed, so that the inlet closing edges (22) are formed by the conical sealing surface (44).
  • the inlet channel (17) extends obliquely through the closing piston (2) in the region of the conical sealing surface (44) and opens into the metering chamber (1o) below the cylindrical sealing surface (43) in the region of the surface (13).
  • a cylindrical collar (47) adjoins the conical sealing surface (44) in the direction of the upper end (45) and is mounted on a corresponding cylindrical inner surface (48) of the housing (1). Following this cylindrical collar (47), the closing piston (2) tapers in the direction of its upper end (45) and forms a support collar (49).
  • This support collar (49) has at its upper end (5o) facing away from the cylindrical collar (47) a support surface on which a sealing sleeve (51) rests.
  • This sealing sleeve (51) is designed as a pot sleeve, the edge (52) of which is angled in the direction of the cylindrical collar (47).
  • the edge (52) is designed on its outside (53) facing the housing (1) as a seal with which the sealing sleeve (51) bears against an inner wall (54) of the interior (11) facing it.
  • the outside (53) designed as a seal is pressed very firmly against the inner wall (54) by a pressure building up under the sealing sleeve (51) and seals well there.
  • the sealing sleeve (51) is guided with its central bore on a cylinder piece (55) which adjoins the support collar (49) in the direction of the upper end (55). With this cylinder piece (55), the closing piston (2) protrudes from an upper end (56) of the housing (1) facing away from the base (31). On the cylinder piece (55) guided a sleeve (57) which can be made of a bearing metal, for example. This sleeve (57) is pressed with a lock nut (89) in the direction of the upper end (5o) of the support collar (49), between which and the sleeve (57) the sealing sleeve (51) is clamped.
  • the sleeve (57) is designed as a slide bearing (38) on its outer surface (58) facing away from the cylinder piece (55). This is formed by the outer surface (58) on the one hand and an inner sleeve (59) on the other hand, which is embedded in a cover (6o) which closes the housing (1) at its upper end (56).
  • the lock nut (89) is screwed onto a thread (61) which connects to the cylinder piece (55) in the direction of the upper end (45). Following this thread (61), a lever (62) with a clamping screw (63) is clamped in the direction of the upper end (45) on the closing piston (2).
  • the lever (62) extends radially outward from the locking piston (2) and, via a bore (64), serves to connect a drive (not shown), with the aid of which the locking piston (2) is intended to perform pivoting movements in the housing (1).
  • the closing piston (2) is provided with an actuator (65), with the aid of which it can carry out movements in the longitudinal direction of the axis (5).
  • This actuator (65) consists essentially of a piston (67) slidably mounted in a cylinder (66).
  • This piston (67) can be acted upon on both sides by a pressure medium which flows in or out through an upper opening (68) or lower opening (69).
  • the two openings (68, 69) open into the cylinder (66).
  • the upper opening (68) is provided in the direction of movement of the piston (67) in a subspace of the cylinder (66) which is above the piston (67), while the lower opening (69) is in a subspace below the piston (67) flows.
  • the piston (67) is fastened to a piston rod (7o) which is led out of the cylinder (66) in a pressure-tight manner in the direction of the upper end (45) of the closing piston (3).
  • a bearing point (71) is formed on the piston rod (7o) at its lower end facing away from the piston (67), in which the closing piston (2) is pivotably mounted about its axis (5) via a roller bearing (72).
  • the roller bearing (72) is able to transmit the forces introduced by the piston (67) into the piston rod (7o) to the closing piston (2), so that it performs both swiveling movements and transverse movements running in its longitudinal axis (5) can.
  • the dosing piston (4) is provided at its front end facing the dosing chamber (1o) with a guide piston (73) which, with its edges (74), acts on the interior walls (76) of an interior space (75) passing through the dosing cylinder (3).
  • This guide piston (73) acts with its pressure surface (77) facing the metering chamber (1o) on the mass (14) located in the metering chamber (1o).
  • a sealing surface (78) adjoins the guide piston (73), with which the metering piston (4) is guided in a sealing manner on the inner wall (76).
  • Both the closing piston (2) and the metering piston (4) can be cleaned without having to be removed on the housing (1) or the metering cylinder (3).
  • the closing piston (2) is pulled with the aid of the actuator (65) in a cleaning position (79) (see FIG. 3).
  • the slides which act upon each other are Bearings (36, 37, 38) are largely separated from each other so that they can be washed around by a cleaning liquid.
  • This cleaning liquid is introduced into the interior (11) both through the connection (18) and through a cleaning agent inlet (8o).
  • This cleaning agent inlet (8o) opens into the interior (11) below the cover (6o) in the region of an extension (81) which is formed on the upper end (56) of the housing (1).
  • the metering piston (4) can also be pulled into an expansion space (82) which is arranged in a rear part of the metering cylinder (3) facing away from the metering chamber (1o).
  • This expansion space (82) is connected via a cleaning channel (83) to a cleaning connection (84) through which cleaning agent can be let into the metering cylinder (4).
  • This cleaning agent rinses the dosing piston (4) within the expansion space (82) and enters the dosing chamber (1o) through the dosing cylinder (3) so that it can wash around the closing piston (2) located in the cleaning position (79) and emerges from the filling openings (15, 15a) via the filling channels (24, 25).
  • Another part of the cleaning liquid present in the dosing cylinder (3) exits the dosing cylinder (3) through an outlet (85) provided in the dosing cylinder (3).
  • the closing piston (2) is pivoted via the lever (62) into a filling position in which the mass (14) passes through the inlet opening (2o) can enter the inlet channel (17) and from this into the metering chamber (1o).
  • the inlet of the mass (14) can be favored in that the metering piston (4) is pulled towards the expansion chamber (82), so that a negative pressure is created in the metering chamber (1o), through which the mass (14) is sucked into the metering chamber (1o).
  • the closing piston (2) is pivoted about its axis (5) with the aid of the force acting on the lever (62).
  • the inlet closing edges (22) close the inlet openings (2o), so that no further mass (14) can enter the inlet channel (17).
  • the filling channels (24, 25) have been pivoted into a position in which they are aligned with the filling openings (15, 15a). Now the mass (14) can enter the filler openings (15, 15a) into the vessel (16) and fill it.
  • the outflow of the mass (14) from the metering chamber (1o) is metered in that the metering piston (4) is moved in the direction of the metering chamber (1o).
  • the mass (14) enters the filling channels (24, 25) through the outlet (26).
  • the orifices (34, 34a) have a smaller cross section than the filler openings (15, 15a), it is ensured that the mass (14) does not wet the orifices (34, 34a) when it leaves the filler channels (24, 25).
  • the closing piston (3) is again pivoted about its axis (5), so that the closure edges (35) now shear off the mass (14) stream pouring through the orifices (34, 34a).
  • the inlet closing edge (22) again opens the connection between the inlet opening (20) and the inlet channel (17).
  • the metering piston (4) is reversed so that it moves again in the direction of the expansion space (82) and thereby sucks the mass (14) into the metering chamber (1o).
  • a pressure medium is introduced through the lower opening (69) into the lower part of the cylinder (66), so that the piston (87) inside the cylinder (66) is pressed towards the upper opening (68) and if necessary, any pressure medium present in the upper part of the cylinder (66) is pressed out of the upper opening (68).
  • This movement of the piston (67) is transmitted via the bearing point (71) and the roller bearing (72) to the closing piston (2), so that it moves in the direction of its axis (5) and is pulled out of the housing (1).
  • the mutually acting sliding surfaces of the sliding bearings (36, 37, 38) are released from their mutual action, so that they can be washed around on all sides by a cleaning liquid.
  • the dosing piston (4) is pulled into the expansion space (82) and cleaning fluid is flushed into the dosing cylinder (3) via the cleaning connection (84).
  • the dosing agent flows, which are flushed into the housing (1) via the connection (18) and the cleaning agent inlet (8o), combine with the cleaning agent stream, which cleans the dosing cylinder (3), in the area of the dosing chamber (1o).
  • the cleaning agent is rinsed out via the outlet (26) through the filling channels (24, 25) and the filling openings (15, 15a).
  • a pressure medium on the piston (67) is controlled in the upper opening (68) of the cylinder (66) so that it moves in the direction its longitudinal axis (5) slides back into its operating position.
  • the pressure medium below the piston (67) is pushed out through the lower opening (69).
  • the pressure forces acting on the locking piston (2) are transmitted to the locking piston (2) via the bearing point (71).
  • the metering piston (4) is pushed in the direction of the metering chamber (1o) in its working position, so that the filling of vessels (16) can now be resumed.
  • the closing piston (2) Due to the pressure medium acting on the piston (67), the closing piston (2) is pressed with its surface (33) onto the inner surface (32) of the housing (1) and thus held in its working position.
  • a smooth flow of the mass (14) out of the filling openings (15, 15 a) is to be expected in this, since the mass (14) with respect to the relatively long length of the filling channels (24, 25) the filling openings (15, 15 a) flows in a laminar flow.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)
EP88102222A 1987-02-17 1988-02-16 Soupape de remplissage Withdrawn EP0279409A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3704901 1987-02-17
DE19873704901 DE3704901A1 (de) 1987-02-17 1987-02-17 Fuellventil

Publications (1)

Publication Number Publication Date
EP0279409A1 true EP0279409A1 (fr) 1988-08-24

Family

ID=6321112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102222A Withdrawn EP0279409A1 (fr) 1987-02-17 1988-02-16 Soupape de remplissage

Country Status (3)

Country Link
US (1) US5108014A (fr)
EP (1) EP0279409A1 (fr)
DE (1) DE3704901A1 (fr)

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FR2952036A1 (fr) * 2009-11-05 2011-05-06 Lb Systems Dispositif de guidage et d'entrainement de vanne rotative de machine de dosage
WO2014001296A1 (fr) * 2012-06-28 2014-01-03 Unifiller Systems Uk Ltd. Dispositif de distribution d'aliment et procédé de mise en portions et de distribution d'aliments coulants

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US5431198A (en) * 1994-05-20 1995-07-11 Autoprod, Inc. Apparatus and method of operation for a product filler machine
DE10128669A1 (de) * 2001-06-13 2002-12-19 Iwk Verpackungstechnik Gmbh Dosiervorrichtung in einer Tubenfüllmaschine
FR2832467B1 (fr) * 2001-11-19 2004-01-30 Pcm Dosys Pompe doseuse a boisseau
AUPS088302A0 (en) * 2002-03-04 2002-03-28 Leeke, Berneice Margaret Metering tap
JP4008316B2 (ja) * 2002-09-05 2007-11-14 株式会社大生機械 液体充填方法
NL1029640C2 (nl) * 2005-03-04 2006-09-06 Stork Food & Dairy Systems Bv Vulklep met een kleplichaam met een in hoofdzaak cilindrisch verdringingsdeel.
US7584770B2 (en) * 2006-01-30 2009-09-08 Stainless Specialists, Inc. Integrated product filler
CN100494043C (zh) * 2006-12-19 2009-06-03 中国轻工业机械总公司南京轻工业机械厂 柱塞式定量灌装阀
DE102013109969A1 (de) * 2013-09-11 2015-03-12 Krones Ag Vorrichtung zum Dosieren eines Füllprodukts in einen zu befüllenden Behälter

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FR2952036A1 (fr) * 2009-11-05 2011-05-06 Lb Systems Dispositif de guidage et d'entrainement de vanne rotative de machine de dosage
WO2014001296A1 (fr) * 2012-06-28 2014-01-03 Unifiller Systems Uk Ltd. Dispositif de distribution d'aliment et procédé de mise en portions et de distribution d'aliments coulants
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US5108014A (en) 1992-04-28

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