• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Filling spout comprising a tubular body in which are mounted a valve extending opposite a valve seat and a secondary shutter disposed in a distribution chamber downstream of the valve and rigidly connected thereto with a slight axial clearance between the valve and the secondary shutter, and a movable portion of an actuator being coupled to the valve to move it between an extreme position of closure and an extreme position of opening. The valve has an intermediate position of closure and comprises a portion received in a bore opening into the dispensing chamber to form a suction piston when the valve is moved from the extreme closed position to the intermediate closed position.
    公开号:FR3053672A1
    申请号:FR1656441
    申请日:2016-07-05
    公开日:2018-01-12
    发明作者:André Jean-Jacques Graffin
    申请人:Serac Group SAS；
    IPC主号:
    专利说明:

    ® FRENCH REPUBLIC
    NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY © Publication number:
    (to be used only for reproduction orders)
    ©) National registration number
    053 672
    56441
    COURBEVOIE © IntCI 8 : B 67 C 3/26 (2017.01)
    PATENT INVENTION APPLICATION
    A1
    ©) Date of filing: 05.07.16.(© Priority: (© Applicant (s): SERAC GROUP Public limited company - FR. (© Inventor (s): GRAFFIN André Jean-Jacques. ©) Date of public availability of the request: 12.01.18 Bulletin 18/02. ©) List of documents cited in the preliminary search report: See the end of this booklet (© References to other related national documents: ©) Holder (s): SERAC GROUP Limited company. ©) Extension request (s): © Agent (s): CABINET BOETTCHER.
    (04) FILLING NOZZLE WITH LIMITATION OF LEAKAGE.
    FR 3 053 672 - A1 _ Filling spout comprising a tubular body in which are mounted a valve extending opposite a valve seat and a secondary shutter disposed in a distribution chamber downstream of the valve and rigidly connected to that -this with a slight axial clearance between the valve and the secondary shutter, and a movable part of an actuator being coupled to the valve to move the latter between an extreme closed position and an extreme open position. The valve has an intermediate closed position and comprises a part received in a bore opening into the dispensing chamber to form a suction piston when the valve is moved from the extreme closed position to the intermediate closed position.


    i extending shutter next to secondary
    In but with training
    The present invention relates to the filling of containers with fluid or more or less viscous liquid products, frothy or not.
    The filling of containers under industrial conditions is carried out in filling installations comprising filling spouts and means for bringing the containers under the filling spouts.
    There are known filling spouts comprising a tubular body in which are mounted a valve of a valve seat and one arranged in a distribution chamber downstream of the valve and connected to the latter in the closed position, an O-ring mounted on the valve is resting on the seat and the secondary shutter is in contact with or in the vicinity of a wall of the body defining an outlet opening for the product at a lower end of the spout.
    With this type of filling spout, and others also, there is a risk of a drop at the lower end of the spout, a drop which may fall and dirty the outside of the containers and / or the parts of the installation located below the spout.
    An object of the invention is to provide a cleaner filling installation.
    For this purpose, provision is made, according to the invention, for a filling spout comprising a tubular body in which are mounted a valve extending opposite a valve seat and a secondary shutter disposed in a distribution chamber downstream of the valve and rigidly connected thereto leaving a slight axial clearance between them, a movable part of an actuator being coupled to the valve to move it between an extreme closed position and an extreme open position. The valve has an intermediate closed position and comprises a part received in a bore opening into the dispensing chamber to form a suction piston when the valve is moved from the extreme closed position to the intermediate closed position.
    Thus, when the valve passes from its extreme closed position to its intermediate closed position, the valve will create a vacuum in the dispensing chamber and suck the product up from the dispensing chamber. This arrangement allows a clean closure of the spout by limiting the risk of liquid leaking outside the spout.
    Other characteristics and advantages of the invention will become apparent on reading the following description of a particular embodiment of the invention and of different variants thereof, with reference to the attached figures among which:
    FIG. 1 is an axial section view of a filling spout according to the invention,
    FIG. 2 is a view in axial section of an end portion of the spout, the spout being in a first closed state with the valve in its extreme closed position and the secondary shutter in its extreme closed position,
    FIG. 3 is a view similar to that of FIG. 2, the spout being in a second closed state with the valve in its intermediate closed position and the secondary shutter in its closed position,
    FIG. 4 is a view similar to that of FIG. 2, the spout being in a semi-opening state with the valve in an intermediate opening position and the secondary shutter in an intermediate position,
    - Figure 5 is a view similar to that of Figure 2, the spout being in an open state with the valve in the extreme open position and the secondary shutter in its extreme open position.
    Referring to the figures, the filling spout according to the invention comprises a tubular body 1 comprising three body elements 1.1, 1.2 and 1.3 coaxial and connected together by quick coupling members.
    One of the quick coupling members is visible in the figures and comprises a ring 40, internally shouldered, which receives the upper end of the body element 1.3 and is fixed by a bayonet connection to the lower end of the body element 1.2. It will be noted that the upper annular edge of the ring 40 is received in a flat groove in the lower end of the body element 1.2 and compresses therein an annular seal 41.
    The body element 1.2 contains a valve, generally designated at 11, comprising a core 12 which is mounted in a bore 1.21 of the body element 1.2 and which has an upper end projecting axially from which extends a pin 13 and a lower end projecting axially from which extends a guide rod 14. The core 12 comprises, towards its upper end, a cylindrical external surface 12.1 and, towards its lower end, a frustoconical external surface 12.2 whose small base is connects to the guide rod 14. Between the cylindrical external surface 12.1 and the frustoconical external surface 12.2 projects an annular lip 12.3 with a diameter close to the diameter of the bore 1.21.
    On the cylindrical outer surface 12.1 of the core
    12, a slightly tightened O-ring 15 is mounted intended to be applied to a seat 1.22 formed by a shoulder surrounding the upper outlet of the cylindrical bore 1.21. The cylindrical external surface 12.1 of the core 12 has a length greater than the diameter of the O-ring 15 so that the O-ring 15 is mounted on this surface with an axial clearance allowing the O-ring 15 to slide along the cylindrical external surface 12.1. The O-ring 15 is pushed towards the annular lip 12.3 by a helical spring 16 having an upper end bearing against a washer 17 bearing against a shoulder of the pin 13 and a lower end bearing against a ring 18 which is in contact with the O-ring 15 and which is mounted on the cylindrical outer surface 12.1 of the core 12 to slide. The ring 18 is provided with axial arms coming to bear against the washer 17. It will be noted that the ring 18 has its movement limited downwards by its coming to bear on the seat 1.22 and its movement limited upwards by
    the coming into support of the axial arms on the washer 17. The displacement of O-ring 15 allows especially to perform a cleaning of the external surface cylindrical 12.1 of the valve core 12 11. The rod guide 14 is provided fins lateral 19 ensuring centering of the rod guide
    in bore 1.21 while allowing the passage of the liquid.
    The body element 1.3 defines a distribution chamber containing a secondary shutter 21 which is fixed to the lower end of the guide rod 14 of the valve 11 by means of a pin 22 so as to provide an axial clearance between the valve 11 and the secondary shutter 21. In this embodiment, the secondary shutter 21 has a conical lower part 23 extending opposite a conical restriction 24 surrounding an outlet orifice of the body element 1.3.
    The spout comprises a device, generally designated at 2, for controlling the valve 11. The control device 2 comprises a control unit 3 connected to an actuator and to a flow meter 4. The actuator comprises a rotary electric motor 5 mounted on a frame 6 fixed to the body element 1.1. The rotary electric motor 5 has an output shaft linked in rotation by a gear train to a worm 7 mounted vertically in the frame β to pivot. A nut 8 fixed in rotation is mounted on the worm 7 and connected in translation to an upper end of a control rod 9 having a lower end portion received by sliding in a sleeve 1.12 mounted coaxially in the element of body 1.1 to define a sealed enclosure isolated from the product inlet chamber 1.11 (the inlet chamber 1.11 is delimited by the body element 1.1 and is connected to the supply pipe C of the spout with filling product) . The lower end portion of the control rod 9 is provided with ferrite rings 10 to form an electromagnetic actuation means.
    A slider 30 is slidably received around the sleeve 1.12 which ensures precise guiding of the actuating element 3 inside the body element 1.1. The slider 30 is provided with annular magnetic elements to create a magnetic coupling between the slider 30 and the control rod
    9. The ferrite rings are preferably dimensioned to exert on the slider 30 a force almost equal to the weight of the slider 30 and the equipment associated therewith.
    The connection between the slide 30 and the valve 11 is ensured by a coupling member generally designated at 35. In the illustrated embodiment, the coupling member comprises a stirrup 36 connected to the slide 30 by connecting arms 37 The stirrup 36 is engaged in a groove in the pin 13 with a radial clearance so that the precise sliding of the slider 30 and the precise sliding of the valve 11 in the body elements 1.1, 1.2 are not affected even if the elements of bodies 1.1 and 1.2 are not rigorously coaxial.
    Note that:
    - the mounting of the valve and the actuator in separate body elements connected by a quick coupling member and the dissociability of the coupling elements make it possible to quickly realize different combinations of the control member and the member shutter;
    - The arrangement of the elements of the coupling member in the form of a stirrup and a pin having a head engaged between the branches of the stirrup allows, after opening of the quick coupler, to dissociate the valve and the actuator by a simple lateral offset of these relative to one another.
    The flow meter 4 is installed on the supply line C of the filling spout to allow the control unit 3 to drive the motor 5 as a function of the flow rate measured in said line.
    During a filling operation, the filling spout will pass from a closed state to an open state before returning to a closed state.
    Due to the axial play between the secondary shutter 21 and the valve 11, the filling spout has several closed states.
    In the first closed state of the filling spout, as illustrated in FIG. 2, the valve 11 is in its extreme closed position and the O-ring 17 is in abutment on the seat 1.22. The secondary shutter 21 is supported on the conical restriction 24 of the body element 1.3. This state corresponds to the filling stop: there is generally product remaining in the distribution chamber 1.31 defined by the body element 1.3 and a risk of leakage if the conical lower part 23 of the secondary shutter 21 does not is not perfectly supported against the conical restriction 24. This state is only transient.
    In the second closed state of the filling spout, as illustrated in FIG. 3, the electric rotary motor 5 has been commanded to raise the valve 11 towards an intermediate closed position in which: the lip 11.3 remains in the bore 1.21, the O-ring 17 remains supported on the seat 1.22, and the secondary shutter 21 is supported on the restriction 24 of the body element 1.3. The displacement of the valve 11 towards its extreme open position has created a vacuum in the distribution chamber 1.31 and therefore creates a suction effect of the product remaining in the distribution chamber 1.31. This limits the risk of leakage.
    For the opening of the valve 11, the rotary electric motor 5 is controlled to raise the valve 11 to an extreme open position, which causes the secondary shutter 21 to come off relative to the conical restriction 24 (FIG. 4) . When the lip 11.3 reaches the seal 15, it takes off the seal 15 from the seat 1.22 authorizing the passage of the product towards the distribution chamber 1.31 and the outlet orifice of the spout. The frustoconical external surface 11.2 makes it possible to regulate the flow of product by providing, with the edge of the bore 1.21, a more or less large annular passage section.
    The control unit 3 is arranged so that the filling spout delivers the product at a first flow in a phase of beginning of filling, a second flow in an intermediate phase and at a third flow in a phase of end of filling. To optimize the filling speed by imitating the risk of splashing and the risk of foaming of the product in the container, the third flow is less than the first flow which is less than the third flow. As a variant, the first and the third rate can be equal to each other.
    the arrangement of the valve and of the secondary shutter makes it possible, without risking to interfere with the action of closing the valve, to maintain in the filling spout a sufficient quantity of product to avoid a defect in formation of the jet of product during of the valve opening.
    Of course, the invention is not limited to the embodiments described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims.
    In particular, although the device according to the invention has been illustrated with a coupling member comprising a C-bracket associated with a pin, which allows not only rapid assembly but also effective cleaning without the need to disassemble, other coupling members having a radial clearance can be used, for example a bayonet coupling member.
    As a variant, the secondary shutter 28 can have a greater height to promote a laminar flow of the product at the outlet of the spout.
    In the closed position, provision can be made for the secondary shutter 25 to extend close to the restriction 26 in the body element 1.3 and not in contact with the latter. The dimensions and the relative positioning of the conical part and of the restriction 26 are then provided so that in the closed position, the conical part 25 of the secondary obturator 28 is spaced from the restriction 26 with a clearance just sufficient to retain by capillarity. the product contained in body elements 1.2 and 1.3. Such an arrangement is useful for the packaging of product which tends to foam during turbulent flow such as milk.
    The rotary electric motor can be linked to the mobile part (the control rod) by any type of mechanism for transforming rotary movement into translative movement.
    The metering unit can comprise, as described here, a flow sensor mounted upstream of the valve, but also, alternatively or jointly, another type of sensor making it possible to determine the quantity of product dispensed, and for example a weight sensor of a container being filled.
    ίο
    权利要求:
    Claims (11)
    [1" id="c-fr-0001]
    1. Filling spout comprising tubular in which a valve is mounted opposite a valve seat and a body extending shutter thereof with a and the secondary shutter disposed in a distribution chamber downstream of the valve and rigidly connected with slight axial play between the secondary valve, and a movable part of an actuator being coupled to the valve to move the latter between an extreme closed position and an extreme open position, characterized in that the valve has a intermediate closed position and in that the valve comprises a part received in a bore opening in the distribution chamber to form a suction piston when the valve is moved from the extreme closed position to the intermediate closed position.
    [2" id="c-fr-0002]
    2. Filling spout according to claim 1, wherein the actuator is connected to a metering unit arranged to determine an amount of liquid delivered by the spout and to control the actuator according to the determined amount.
    [3" id="c-fr-0003]
    3. Filling spout according to claim 2, wherein the actuator is a rotary electric motor linked to the movable part by a mechanism for transforming rotary movement into translational movement and the metering unit comprises a servo circuit connected to the electric motor to drive it.
    [4" id="c-fr-0004]
    4. Filling spout according to claim 2, wherein the metering unit comprises a flow sensor mounted upstream of the valve.
    [5" id="c-fr-0005]
    5. Filling spout according to claim 2, wherein the metering unit comprises a sensor for weight of a container being filled.
    [6" id="c-fr-0006]
    6. A filling spout according to claim 2, in which the mechanism for transforming rotary movement into translational movement is a screw / nut system.
    [7" id="c-fr-0007]
    7. Filling spout according to claim 1, wherein the valve and the actuator are mounted in separate body elements connected by a quick coupling member, and the coupling member comprises two elements coupled in a dissociable connection including radial clearance.
    [8" id="c-fr-0008]
    8. A filling spout according to claim 7, in which one of the elements of the coupling member is a C-bracket and the other element is a pin having a head engaged between the branches of the bracket.
    [9" id="c-fr-0009]
    9. A filling spout according to claim 1, wherein the secondary shutter is mounted in a body element separate from the body element comprising the valve, and is connected to the latter by a quick coupling member.
    [10" id="c-fr-0010]
    10. A filling spout according to claim 1, in which the valve comprises a core on which an O-ring is mounted and the valve seat comprises a chamfer at the upper end of a cylindrical body element.
    [11" id="c-fr-0011]
    11. Filling spout according to claim 11, wherein the O-ring is mounted on the core with an axial clearance.
    .AND
    类似技术:
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    FR2983843A1|2013-06-14|Filling nozzle for use with filling installation for filling containers with liquid food substance, has main valve and secondary obturator connected to actuating part mounted upstream of valve to provide stroke of valve and obturator
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    同族专利:
    公开号 | 公开日
    WO2018007412A1|2018-01-11|
    BR112018075925A2|2019-03-26|
    EP3481764A1|2019-05-15|
    FR3053672B1|2018-08-10|
    US20180009645A1|2018-01-11|
    EP3481764B1|2020-04-15|
    US10865087B2|2020-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5878992A|1997-05-07|1999-03-09|Mott's Inc.|Two stage variable flow valve assembly|
    EP0894723A1|1997-07-18|1999-02-03|Techpack S.r.l.|Bag filling valve for viscous fluids|
    WO2001040098A1|1999-11-29|2001-06-07|Serac Group|Filling tube with flow rate adjustable by a single actuating device|
    FR2983843A1|2011-12-13|2013-06-14|Serac Group|Filling nozzle for use with filling installation for filling containers with liquid food substance, has main valve and secondary obturator connected to actuating part mounted upstream of valve to provide stroke of valve and obturator|
    DE102014113488A1|2014-09-18|2016-03-24|Khs Gmbh|filling valve|
    EP3031774A1|2014-12-08|2016-06-15|Krones AG|Filling valve for filling a container with a filling product|
    FR2838730B1|2002-04-22|2004-06-18|Serac Group|ELECTROMAGNETICALLY CONTROLLED FILLING NOZZLE|
    ITBO20020282A1|2002-05-13|2003-11-13|Bl Macchine Automatiche|WRAPPING MACHINE FOR THE PACKAGING OF INCONERENT PRODUCTS IN HARD JELLY CAPSULES|
    DE102005011659A1|2005-03-08|2006-09-14|Khs Ag|Actuator and filling machine with such actuators|FR3092567B1|2019-02-08|2021-01-22|Serac Group|VACUUM FILLING NOZZLE|
    CN112093756A|2020-09-10|2020-12-18|张满元|Beverage canning equipment|
    CN112010249A|2020-09-28|2020-12-01|程方园|Filling device of emulsion cosmetics production usefulness|
    CN112158790B|2020-10-13|2021-12-24|江西绿世界油脂有限公司|Edible oil filling machine|
    法律状态:
    2017-07-24| PLFP| Fee payment|Year of fee payment: 2 |
    2018-01-12| PLSC| Publication of the preliminary search report|Effective date: 20180112 |
    2018-07-25| PLFP| Fee payment|Year of fee payment: 3 |
    2020-07-21| PLFP| Fee payment|Year of fee payment: 5 |
    2021-07-27| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1656441|2016-07-05|
    FR1656441A|FR3053672B1|2016-07-05|2016-07-05|FILLING NOZZLE WITH LEAK LIMITATION|FR1656441A| FR3053672B1|2016-07-05|2016-07-05|FILLING NOZZLE WITH LEAK LIMITATION|
    PCT/EP2017/066692| WO2018007412A1|2016-07-05|2017-07-04|Spill-limiting filling spout|
    EP17735136.8A| EP3481764B1|2016-07-05|2017-07-04|Spill-limiting filling spout|
    BR112018075925-2A| BR112018075925A2|2016-07-05|2017-07-04|leakage limiting nozzle|
    US15/641,943| US10865087B2|2016-07-05|2017-07-05|Filler spout with leak limitation|
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