FIELD OF THE INVENTION
[0001] The present invention concerns a device and the relative method to hold lids of containers
for liquids, for example but not exclusively feeding bottles, feeders, drinking troughs
or other containers or receptacles, for feeding animals. In particular, with the present
invention it is possible to hold and move the lids during the steps of opening and/or
re-stopping the containers, for example but not only in at least partly automated
washing, sterilizing and/or refilling plants. A holding device and a method for holding
lids according to the preamble of claims 1 and 6 respectively are known from
US 7 387 049 B.
BACKGROUND OF THE INVENTION
[0002] Plants are known, at least partly automated or manual, used for washing containers
for liquids, for example but not only feeding bottles, feeders, drinking troughs or
others, used for feeding animals such as for example laboratory guinea pigs or rodents
or others.
[0003] It is known that, before washing, the containers arrive closed by means of suitable
lids or caps, which are shaped with a nozzle to allow the animal to take the liquid
contained in the containers, and which must be supplied at the end of the washing
cycle, closed and filled with a new liquid.
[0004] Such washing plants are structured with several operating stations disposed in line,
including a station for loading the closed containers, a station for removing the
caps from the containers, or de-lidding station, a washing station, a filling station
and a station for closing the washed and filled containers, using said caps.
[0005] It is also known to dispose and group together a plurality of containers in suitable
washing baskets, provided with relative containing cells, so as to keep the containers
with a desired disposition during the operating steps of the machine.
[0006] It is also known to provide a single treatment of the containers, or in unordered
or non-homogeneous groups, for example in plants that are mainly manual and have a
limited capacity.
[0007] The lids are normally constrained in watertight manner to the containers. In known
solutions that provide the removal station, the closed containers are opened by removing
the lids by a remover.
[0008] In general, both in the removal station and in the closing station, devices for holding
the lids are provided, which are particularly complex and difficult to manage, requiring
a high and complex manual intervention.
[0009] Furthermore, known holding devices, whether they are intended for manual or automated
solutions, have considerable limits in guaranteeing that the lids are held correctly
and lastingly during the steps when they are distanced or brought near the relative
container.
[0010] Indeed, in manual solutions, the lid is held mechanically, but these solutions provide
to hold one lid at a time, reducing the level of automation of the plant and increasing
times and operating costs.
[0011] In automated solutions, on the contrary, the lid is held pneumatically, but this
solution not only has many disadvantages in managing the losses of load in order to
guarantee that several lids are held simultaneously, but also has a limited holding
capacity, with the risk of the lids accidentally falling, with consequent interruptions
to the production of the line.
[0012] Purpose of the present invention is to achieve a device and to perfect a method which
allow to open and hold even several lids at the same time, simply, economically and
efficiently, and which overcome the disadvantages of the state of the art.
[0013] The Applicant has devised, tested and embodied the present invention to overcome
the shortcomings of the state of the art and to obtain these and other purposes and
advantages.
SUMMARY OF THE INVENTION
[0014] The present invention is set forth and characterized in the independent claims, while
the dependent claims describe other characteristics of the invention or variants to
the main inventive idea.
[0015] In accordance with the above purpose, a holding device according to the present invention
is applied for example in an at least partly automated plant for treating containers
of liquids, in order to hold relative lids or caps equipped with a holed nozzle from
which the liquid comes out.
[0016] The invention is applied particularly, advantageously but not exclusively, to remove
or reposition simultaneously a plurality of lids of containers that are adjacent to
each other, for example disposed in a basket or suchlike.
[0017] The holding device comprises a plurality of holding members, each provided with a
housing pipe conformed so as to allow it to house at least part of the nozzle of the
lid.
[0018] Each holding member also comprises a clamping member disposed in cooperation with
the housing pipe of the nozzle, and able to temporarily and selectively allow or impede
the movement of the nozzle through the housing pipe and therefore to selectively guarantee
that the lid is held with respect to the relative holding member.
[0019] According to the present invention, the device comprises an actuator element, one
only for all the holding members, and kinematically connected to each clamping member
so as to selectively and simultaneously move each clamping member between a clamping
operating condition, in which it contacts the nozzle and prevents it from moving inside
the housing pipe by holding it, and a release operating condition in which it is separated
from the nozzle and allows it to move inside the housing pipe, releasing it.
[0020] In this way, with a single actuator element, all the holding members provided selectively
and simultaneously modify their operating condition, determining a univocal and common
holding or release condition of the lids.
[0021] With the present invention it it thus possible to simultaneously manage the constraint
or release of a plurality of lids in an at least partly automated manner.
[0022] Furthermore, since the actuator element is kinematically connected to each clamping
member, the management and coordination of the command transmission is extremely simple
and precise compared with the pneumatic solutions normally provided in current automated
solutions.
[0023] Therefore, the solution according to the present invention is able to guarantee,
simply and economically, an effective and uniform automated holding of a plurality
of lids.
[0024] According to a variant, the housing pipe is made in such a manner that the nozzle
enters into the pipe until it reaches a clamping segment in which it assumes a condition
of cooperation with the clamping member.
[0025] According to a variant, each clamping member comprises a clamping element disposed
in cooperation with the clamping segment to act radially against the nozzle of the
lid.
[0026] According to another variant, the clamping member cooperates with an elastic member
so as to automatically keep the clamping element in a clamping operating condition
when the holding member and the nozzle of the lid are coupled.
[0027] In this clamping operating condition, the clamping member allows to hold the nozzle
as soon as the latter is inserted inside the housing pipe, thus guaranteeing, immediately,
that it is correctly held.
[0028] According to another variant, the holding device according to the present invention
comprises one or more connection levers suitably constrained with each other and with
the clamping members, to define the kinematic connection of the actuator element and
the clamping members.
BRIEF DESCRIPTION OF THE DRAWINGS
[0029] These and other characteristics of the present invention will become apparent from
the following description of a preferential form of embodiment, given as a non-restrictive
example with reference to the attached drawings wherein:
- fig. 1 is a schematic lateral view, partly in section, of a holding device for lids
of containers of liquids according to the present invention, in a first operating
condition;
- fig. 2 is a schematic lateral view, partly in section, of the holding device in fig.
1, in a second operating condition.
[0030] To facilitate comprehension, the same reference numbers have been used, where possible,
to identify common elements in the drawings that are substantially identical. It is
understood that elements and characteristics of one form of embodiment can conveniently
be incorporated into other forms of embodiment without further clarifications.
DETAILED DESCRIPTION OF A PREFERENTIAL FORM OF EMBODIMENT
[0031] With reference to the attached drawings, a holding device 10 according to the present
invention is used to hold feeding bottles 12, for feeding small animals such as guinea
pigs, mice, hamsters and others, for example used in laboratories for pharmaceutical
research.
[0032] The feeding bottles 12 are normally closed at the top by means of relative metal
lids 11 or caps, conformed to define a nozzle 11a with a through hole from which the
animal drinks the liquid contained therein.
[0033] In this case, each bottle 12 has a closing neck on which a packing 14 is disposed,
annularly and externally, able to define the watertight seal once disposed to close
the lid 11 on the bottle 12.
[0034] In particular, the holding device 10 according to the present invention allows to
hold simultaneously a plurality of lids 11 in a simply and automated manner, and to
move them towards and/or away from the bottles 12 during the automated steps of opening
and closing the bottles 12.
[0035] In the form of embodiment shown, the bottles 12 are disposed inside relative containing
baskets, not shown, which typically keep the bottles 12 according to a desired ordered
disposition, for example in rows and columns.
[0036] The holding device 10 can be mounted suspended over a bridge structure (not shown),
above the baskets, and consists of a plurality of holding heads 15, disposed geometrically
coherently with the disposition of the bottles 12 in the baskets.
[0037] The holding heads 15 are suitable to be taken into cooperation with the relative
nozzles 11a of each lid 11, in order to hold them and operate to at least partly constrain
and/or release the lids with respect to the neck of the relative bottles 12.
[0038] Each holding head 15 has a substantially cylindrical conformation and comprises inside
itself a housing pipe 17, having a conformation and size correlated to the nozzles
11a of the lids 11.
[0039] In particular, each housing pipe 17 is open toward the outside through a mouth 17a
having an increased diameter, and comprises a clamping segment 18 in which the nozzle
11a remains clamped with respect to the housing pipe 17.
[0040] Each holding head 15 also comprises a clamping member 30 of the mechanical type,
disposed in selective cooperation with the clamping segment 18 of the housing pipe
17, to temporarily hold the nozzle 11a inside the housing pipe 17.
[0041] The clamping member 30 comprises a lever 25 pivoted to the lateral wall of the holding
head 15 by means of a pin 26 which allows it to make a movement toward/way from the
holding head 15.
[0042] The clamping member 30 also comprises a peg 27 attached to the lower end portion
of the lever 25.
[0043] The peg 27 is selectively movable linearly inside a transverse hole made on the lateral
wall of the holding head 15, in correspondence with the clamping segment 18.
[0044] The peg 27 thus has a radial movement with respect to the clamping segment 18, and
to the nozzle 11a possibly disposed inside it.
[0045] Furthermore, the clamping member 30 cooperates with an elastic ring 29, for example
made of elastomer material, disposed outside the holding head 15, in cooperation with
the lever 25 and in correspondence with the axis of movement of the peg 27.
[0046] The elastic ring 29 is suitable to keep the lever 25 normally thrusting against the
peg 27.
[0047] In this condition, the peg 27 is held elastically against the nozzle 11a, possibly
disposed inside the clamping segment 18.
[0048] The holding device 10 also comprises a double rod linear actuator 19, which is kinematically
connected to each of the levers 25 of the clamping members 30 of the holding heads
15.
[0049] In particular, the linear actuator 19 is suitable to overcome the elastic resistance
of the elastic rings 29 and to move each clamping member 30 selectively and simultaneously
between a clamping operating condition, in which the peg 27 is kept under pressure
inside the clamping segment 18 and insists radially on the nozzle 11a to hold it inside
the housing pipe 17, and a release operating condition, in which the force of the
elastic ring is overcome and the peg 27 is held detached from the nozzle 11a, allowing
the latter to be released from the housing pipe 17.
[0050] In this case, three holding heads 15 are provided, disposed adjacent to each other,
in order to simultaneously hold three lids 11.
[0051] In this form of embodiment, the linear actuator 19 is constrained directly to the
two levers 25 of the clamping members 30 of the two external holding heads 15.
[0052] The lever 25 of the clamping member 30 is kinematically connected to a lever 25 of
one of the other two clamping members 30, the one on the right in the attached drawings,
by means of a connection lever 31.
[0053] In this way, the rotation of the lever 25 directly connected to the linear actuator
19 also determines the coordinated rotation of the lever 25 of the holding head 15.
[0054] The holding device 10 as described heretofore functions as follows.
[0055] In a holding step, in which the nozzle 11a is partly inserted inside the clamping
segment 18, the peg 27 contacts the nozzle 11a, due to the elastic effect of the elastic
ring 29, and holds it inside the housing pipe 17.
[0056] On the contrary, if the lids 11 have to be picked up or released, the linear actuator
19 is activated, which moves simultaneously the two levers 25 of the clamping members
30 of the two lateral holding heads 15 and, by means of the connection lever 31, also
the remaining lever 25 of the clamping member 30 of the central holding head 15.
[0057] As we said, this movement overcomes the elastic resistance of the elastic ring 29
and allows the peg 27 to move to a position such that it does not contact the nozzle
11a, when it is inside the clamping segment 18.
[0058] It is clear that modifications and/or additions of parts or steps may be made to
the holding device 10 and the relative method as described heretofore, without departing
from the field and scope of the present invention.
[0059] For example, it comes within the scope of the present invention to provide that a
relative movement actuator is associated with each holding head 15, in order to impart
on each holding head 15 an independent linear movement.
[0060] According to a variant, instead of the elastic ring 29 a helical spring is provided,
interposed between the lever 25 and the external surface of the holding head 15.
[0061] It also comes within the scope of the present invention to provide that pneumatic
means are associated with each holding head 15, to assist the holding of the lid 11,
or to promote the detachment of the lid 11 from the bottle 12, according to known
systems.
[0062] It is also clear that, although the present invention has been described with reference
to some specific examples, a person of skill in the art shall certainly be able to
achieve many other equivalent forms of device and method for holding lids of containers
of liquids, having the characteristics as set forth in the claims and hence all coming
within the field of protection defined thereby.
1. Holding device for lids (11) of containers (12) for liquids, and equipped with an
exit nozzle (11a) with a through hole for the liquid, said device comprising a plurality
of holding members (15) each provided with a housing pipe (17) conformed so as to
allow the housing of at least part of said nozzle (11a) and comprising a clamping
member (30) disposed in cooperation with said housing pipe (17), and able to temporarily
and selectively allow or impede the movement of said nozzle (11a) through said housing
pipe (17) so as to selectively hold said lid (11) with respect to the relative holding
member (15), characterized in that it comprises a single actuator element (19) for all said holding members (15), and
kinematically connected to each clamping member (30) so as to selectively and simultaneously
move each clamping member (30) between a clamping operating condition, in which it
contacts the nozzle (11a) and impedes its movement inside said housing pipe (17),
and a release operating position in which it is separated from said nozzle (11a) and
allows the movement thereof inside said housing pipe (17).
2. Device as in claim 1, characterized in that the housing pipe (17) comprises a clamping segment (18) in which the nozzle (11a)
is able to be disposed in order to cooperate with the clamping member (30).
3. Device as in claim 2, characterized in that each clamping member (30) comprises a clamping element (27) disposed in cooperation
with the clamping segment (18) in order to act radially against the nozzle (11a).
4. Device as in any claim hereinbefore, characterized in that the clamping member (30) cooperates with an elastic member (29) conformed so as to
automatically keep said clamping element (30) in a clamping operating condition.
5. Device as in any claim hereinbefore, characterized in that it comprises one or more connection levers (31) suitably constrained with respect
to each other and to the clamping members (30), so as to define the kinetic connection
between the actuator element (19) and said clamping members (30).
6. Method for holding lids (11) of containers (12) of liquids equipped with an exit nozzle
(11a) with a through hole for the liquid, said method providing to use a device provided
with a plurality of holding members (15) each provided with a housing pipe (17) conformed
so as to allow the housing of at least part of said nozzle (11a) and comprising a
clamping member (30) disposed in cooperation with said housing pipe (17), and able
to temporarily and selectively allow or impede the movement of said nozzle (11a) through
said housing pipe (17) so as to selectively hold said lid (11) with respect to the
relative holding member (15), characterized in that it provides a step of selective and simultaneous movement, in which by means of a
single actuator element (19) for all said holding members (15), kinematically connected
to each clamping member (30), each clamping member (30) is moved selectively and simultaneously
between a clamping operating condition, in which it contacts the nozzle (11a) and
impedes its movement inside said housing pipe (17), and a release operating position
in which it is separated from said nozzle (11a) and allows the movement thereof inside
said housing pipe (17).
1. Haltevorrichtung für Deckel (11) von Behältern (12) für Flüssigkeiten und ausgestattet
mit einer Austrittsdüse (11 a) mit einem Durchgangsloch für die Flüssigkeit, wobei
die Vorrichtung mehrere Halteglieder (15) umfasst, die jeweils mit einem Gehäuserohr
(17) versehen sind, das so gestaltet ist, dass es die Aufnahme von wenigstens einem
Teil der Düse (11a) ermöglicht und umfassend ein Festklemmglied (30), das in Zusammenwirkung
mit dem Gehäuserohr (17) angeordnet ist, und vorübergehend und selektiv die Bewegung
der Düse (11a) durch das Gehäuserohr (17) ermöglichen oder hindern kann, um selektiv
den Deckel (11) in Bezug auf das jeweilige Halteglied (15) zu halten, dadurch gekennzeichnet, dass sie ein einziges Bedienelement (19) für all die Halteglieder (15) umfasst und kinematisch
mit jedem Festklemmglied (30) verbunden ist, um selektiv und simultan jedes Festklemmglied
(30) zwischen einem festgeklemmten Betriebszustand, in dem es die Düse (11a) berührt
und ihre Bewegung in dem Gehäuserohr (17) hindert, und einer gelösten Betriebsposition,
in der es von der Düse (11a) getrennt ist und deren Bewegung in dem Gehäuserohr (17)
ermöglicht, zu bewegen.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Gehäuserohr (17) ein Festklemmsegment (18) umfasst, in dem die Düse (11a) angeordnet
werden kann, um mit dem Festklemmglied (30) zusammenzuwirken.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass jedes Festklemmglied (30) ein Festklemmelement (27) umfasst, das in Zusammenwirkung
mit dem Festklemmsegment (18) angeordnet ist, um radial gegen die Düse (11a) zu wirken.
4. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Festklemmglied (30) mit einem elastischen Element (29) zusammenwirkt, das so
gestaltet ist, dass es das Festklemmglied (30) automatisch in einem festgeklemmten
Betriebszustand hält.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie einen oder mehrere Verbindungshebel (31) umfasst, die zweckmäßig in Bezug aufeinander
und die Festklemmglieder (30) gespannt sind, um die kinetische Verbindung zwischen
dem Bedienelement (19) und den Festklemmgliedern (30) definieren.
6. Verfahren zum Halten von Deckeln (11) von Behältern (12) von Flüssigkeiten, ausgestattet
mit einer Austrittsdüse (11a) mit einem Durchgangsloch für die Flüssigkeit, wobei
das Verfahren es bereitstellt, eine Vorrichtung zu verwenden, die mit mehreren Haltegliedern
(15) versehen ist, die jeweils mit einem Gehäuserohr (17) versehen sind, und so gestaltet
sind, dass sie die Aufnahme mindestens eines Teils der Düse (11a) ermöglichen und
ein Festklemmglied (30) umfassen, das in Zusammenwirkung mit dem Gehäuserohr (17)
angeordnet ist und zeitweise und selektiv die Bewegung der Düse (11a) durch das Gehäuserohr
(17) ermöglichen oder hindern kann, um selektiv den Deckel (11) in Bezug auf das jeweilige
Halteglied (15) zu halten, dadurch gekennzeichnet, dass es einen Schritt einer selektiven und simultanen Bewegung bereitstellt, in dem durch
ein einziges Bedienelement (19) für all die Halteglieder (15), das kinematisch mit
jedem Festklemmglied (30) verbunden ist, jedes Festklemmglied (30) selektiv und simultan
zwischen einem festgeklemmten Betriebszustand, in dem es die Düse (11a) berührt und
deren Bewegung in dem Gehäuserohr (17) hindert, und einer gelösten Betriebsposition,
in der es von der Düse (11a) getrennt ist und deren Bewegung in dem Gehäuserohr (17)
ermöglicht, bewegt wird.
1. Dispositif de retenue pour couvercles (11) de contenants (12) pour liquides, et équipés
d'une buse de sortie (11a) avec un trou débouchant pour le liquide, ledit dispositif
comprenant une pluralité d'organes de retenue (15), chacun pourvu d'un tuyau de logement
(17) conformé afin de permettre le mouvement d'au moins une partie de ladite buse
(11a) et comprenant un organe de serrage (30) disposé en coopération avec ledit tuyau
de logement (17), et capable de permettre ou de bloquer temporairement et sélectivement
le mouvement de ladite buse (11a) à travers ledit tuyau de logement (17) afin de retenir
sélectivement ledit couvercle (11) par rapport à l'organe de retenue relatif (15),
caractérisé en ce qu'il comprend un seul élément actionneur (19) pour tous lesdits organes de retenue (15),
et raccordé cinématiquement à chaque organe de serrage (30) afin de déplacer sélectivement
et simultanément chaque organe de serrage (30) entre une condition d'actionnement
de serrage, dans laquelle il entre en contact avec la buse (11a) et bloque son mouvement
à l'intérieur dudit tuyau de logement (17), et une position d'actionnement de libération,
dans laquelle il est séparé de ladite buse (11a) et permet le mouvement de celle-ci
à l'intérieur dudit tuyau de logement (17).
2. Dispositif selon la revendication 1, caractérisé en ce que le tuyau de logement (17) comprend un segment de serrage (18) dans lequel la buse
(11a) est capable d'être disposé afin de coopérer avec l'organe de serrage (30).
3. Dispositif selon la revendication 2, caractérisé en ce que chaque organe de serrage (30) comprend un élément de serrage (27) disposé en coopération
avec le segment de serrage (18) afin d'agir radialement contre la buse (11a).
4. Dispositif selon une quelconque revendication précédente, caractérisé en ce que l'organe de serrage (30) coopère avec un organe élastique (29) conformé afin de maintenir
automatiquement ledit élément de serrage (30) dans une condition d'actionnement de
serrage.
5. Dispositif selon une quelconque revendication précédente, caractérisé en ce qu'il comprend un ou plusieurs leviers de raccordement (31) fixés de façon appropriée
les uns par rapport aux autres et aux organes de serrage (30), afin de définir le
raccord cinétique entre l'élément actionneur (19) et lesdits organes de serrage (30).
6. Procédé pour retenir des couvercles (11) de contenants (12) de liquides, équipés d'une
buse de sortie (11a) avec un trou débouchant pour le liquide, ledit procédé prévoyant
d'utiliser un dispositif pourvu d'une pluralité d'organes de retenue (15), chacun
pourvu d'un tuyau de logement (17) conformé afin de permettre le mouvement d'au moins
une partie de ladite buse (11a) et comprenant un organe de serrage (30) disposé en
coopération avec ledit tuyau de logement (17), et capable de permettre ou de bloquer
temporairement et sélectivement le mouvement de ladite buse (11a) à travers ledit
tuyau de logement (17) afin de retenir sélectivement ledit couvercle (11) par rapport
à l'organe de retenue relatif (15), caractérisé en ce qu'il prévoit une étape de mouvement sélectif et simultané, dans lequel, au moyen d'un
seul élément actionneur (19) pour tous lesdits organes de retenue (15), cinématiquement
raccordé à chaque organe de serrage (30), chaque organe de serrage (30) est déplacé
sélectivement et simultanément entre une condition d'actionnement de serrage, dans
laquelle il entre en contact avec la buse (11a) et bloque son mouvement à l'intérieur
dudit tuyau de logement (17), et une position d'actionnement de libération, dans laquelle
il est séparé de ladite buse (11a) et permet le mouvement de celle-ci à l'intérieur
dudit tuyau de logement (17).