Classifications

• • 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
  • B67C3/22—Details
  • B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
• • 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
  • B67C3/22—Details
  • B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
  • B67C3/2608—Filling-heads; Means for engaging filling-heads with bottle necks comprising anti-dripping means

Definitions

• the present invention relates to a filling spout fed with a liquid under pressure.
• Document FR-A-2 838 730 discloses a filling spout comprising a tubular body in which is mounted a main valve associated with a valve seat to ensure opening or closing of the filling spout, the main valve being connected to an electromagnetic actuator.
• the electromagnetic actuator has the advantage of controlling the main valve without having to pass through the wall of the tubular body so that this type of filling spout is particularly suitable for the packaging of food products.
• An object of the invention is to provide a filling spout comprising a control device of the main valve operable with high supply pressures.
• a filling spout comprising a tubular body in which is mounted a valve seat which is associated with a main valve connected to a piston extending in a pilot cavity connected to an exhaust port and to a pilot duct having a pilot orifice provided with a controlled piloting flap, the pilot duct control opening on a piston face causing a movement of the main valve to an open position when the control conduit is supplied with liquid under pressure.
• the pilot valve is connected to the piston by a tubular connection forming the control duct mounted coaxially with the main valve.
• the pilot valve is connected by a control rod to a shutter ensuring closing of the exhaust port when opening the pilot orifice. This gives the quick opening of the main valve.
• FIG. 1 is a perspective view in axial section of the filling spout according to the invention in closed position
• Figure 2 is an enlarged partial sectional view along the line III-III of Figure 2.
• the filling spout comprises, in a manner known per se of the above-mentioned document, a tubular body 1 comprising three elements 1.1, 1.2 and 1.3 interconnected by fast fasteners, not shown.
• the body member 1.1 is connected to a liquid supply device under pressure.
• the body member 1.2 comprises a transverse partition 2 having a central opening 3 forming a valve seat with which is associated a main valve 4.
• the main valve 4 is pierced with a pilot orifice 15 coaxial with the main valve 4.
• the main valve 4 is connected by a tubular piloting conduit 5 extending coaxially with the main valve 4, a piston 6 of circular section mounted to slide in a cylindrical piloting cavity 7 formed at the upper end of a core 8 fixed inside the body member 1.2 by a flange 9 having oblong slots 10 allowing a liquid flow around the core 8.
• the piloting cavity 7 opens at the upper part of the core 8 so that it has an opening allowing the piston to leave the piloting cavity during a moving the main valve 4 to the open position.
• An exhaust duct 11 of circular cross section vertically passes through the core 8 coaxially with the tubular pilot duct 5.
• the exhaust duct 11 opens at its upper end into the bottom of the casing 7 and has at its lower end an orifice exhaust 12 which is associated with a shutter 13 attached to the lower end of a control rod 14 of square section ( Figure 3), the vertical edges 15 are guided by the inner wall of the exhaust duct 11.
• the control rod 14 extends vertically in the piloting duct 5 and in the pilot valve 15 of the main valve 4.
• a pilot valve 16 is fixed to the upper end of the control rod 14.
• the flap of FIG. pilot 16 is removably connected to a control rod 17 itself connected to a not shown actuator.
• the filling spout is in the closed position, that is to say that the main valve 4 is supported on its seat 3 and the pilot valve 16 closes the pilot orifice 15 while the shutter 13 is spaced from the exhaust port 12.
• the main valve 4 and the pilot valve 16 thus provide a sealed separation between the feed chamber 18 delimited by the body member 1.1 and the chamber distribution 19 delimited by the body elements 1.2 and 1.3.
• the distribution chamber 19 is kept filled with liquid by providing a shutter 13 whose lower surface cooperates with a restriction 20 at the lower end of the tubular body 1 with a fair play sufficient to retain by capillarity the liquid contained in the distribution chamber 19 when the main valve 4 and the pilot valve 16 are in a closed position. In this position the piston 6 extends to the neighboring swimming from the bottom of the pilot cavity 7.
• the control rod 17 is pulled upwards thus simultaneously driving upwards the pilot flap 16 which opens the pilot orifice 15 and the shutter 13 which closes the exhaust port 12.
• the liquid contained in the feed chamber 18 then flows through the pilot orifice 15 and the control duct 5, and after having filled the exhaust duct 11, the liquid exerts a pressure on the lower face of the piston 6.
• the rapid filling of the control duct 5 and the exhaust duct 11 is favored by longitudinal grooves 21 (FIG. 3) in two opposite faces of the control rod 14.
• the piston 6 is dimensioned with respect to the main valve 4 so that the force exerted upwards by the liquid on the piston 6 in the cavity 7 is greater than the force exerted downwards on the main valve 4 by the liquid contained in the supply chamber 18.
• the main valve 4 is then moved to its open position as shown in FIG. 2.
• the piston 6 reaches the upper edge of the cavity 7, the liquid trapped in the cavity 7 can escape and the main valve 4 is then maintained in a stable open position. This position is preferably calculated so that the flow is laminar at the outlet of the filling spout.
• a laminar flow at the outlet of the filling spout is further promoted by providing a core 8 having a conical outer surface 22 having a corresponding conicity to the inner surface 23 of the facing body member 1.3.
• the shutter 13 also has a shape adapted so that in the open position of the pilot valve, the lower surface of the shutter 13 continuously extends the outer surface 22 of the core 8 as shown in Figure 2.
• the pilot valve 16 is actuated downwards to close the pilot orifice 15.
• the exhaust orifice 12 is open so that the pressure drops on the lower face of the piston 6.
• the main valve cipal 4 then closes under the effect of the weight of the moving assembly and the pressure exerted by the liquid contained in the feed chamber 18.
• the invention has been illustrated in connection with a device in which the pilot valve and the control duct are concentric with the main valve 4 and the tubular body 1, an associated eccentric pilot valve may be provided. to a pilot duct opening laterally into the bottom of the cavity 7.

Landscapes

• Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
• Fluid-Driven Valves (AREA)
• Check Valves (AREA)
• Supply Of Fluid Materials To The Packaging Location (AREA)
• Basic Packing Technique (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36097055

Family Applications (1)

Country Status (7)

Families Citing this family (5)

Family Cites Families (9)

• 2005
  • 2005-07-19 FR FR0507645A patent/FR2888827B1/fr not_active Expired - Fee Related
• 2006
  • 2006-06-30 CN CNA2006800263138A patent/CN101223099A/zh active Pending
  • 2006-06-30 JP JP2008520906A patent/JP2009500259A/ja not_active Ceased
  • 2006-06-30 BR BRPI0613691A patent/BRPI0613691A2/pt not_active IP Right Cessation
  • 2006-06-30 EP EP06778729A patent/EP1904396A1/de not_active Withdrawn
  • 2006-06-30 WO PCT/FR2006/001539 patent/WO2007010104A1/fr not_active Application Discontinuation
  • 2006-07-18 US US11/488,018 patent/US7478793B2/en not_active Expired - Fee Related

Non-Patent Citations (1)

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