TECHNICAL FIELD OF THE INVENTION
[0001] The present invention concerns a unit for the packaging of bags, sachets, sticks,
flowpacks and the like in box-shaped cases.
[0002] More in detail, the present invention relates to a unit for packaging bags, sachets,
sticks, flowpacks and the like, e.g. containing pharmaceutical, cosmetic, food, chemical,
and other products, supplied in granular, powder, liquid, viscous or solid form, in
tablets, and the like, in box-shaped cases, the latter being, for example, in the
shape of a parallelepiped but also other shapes.
BACKGROUND ART
[0003] In various manufacturing fields, such as the pharmaceutical, cosmetic, food, chemical
ones, and others, various products supplied in granular, powder, liquid, viscous or
solid form, in tablets, and the like are pre-packaged in so-called
"sticks", i.e. in sealed sachets, as single doses or otherwise, for convenience of use or administration,
for adequate preservation of the products, or for the special shape in which they
are supplied.
[0004] It should be noted that hereafter in this description the generic term "sachets"
means, for convenience, bags, sachets, sticks, flowpacks, or the like.
[0005] These sachets are in turn packaged for sale in cases, for example of cardboard or
other suitable material, by packaging machines of a known kind.
[0006] Generally, cases are box-like and have substantially a parallelepiped shape, or even
different shapes.
[0007] In these machines, the sachets to be packaged are fed in a predetermined number to
one or more respective inserting stations, which are generally movable along a predetermined
feeding path.
[0008] Typically, cartons are initially contained in a store in which they are, for example,
in a flattened configuration, or they are stored directly in the form of semi-finished
blanks.
[0009] Each case is taken from the store, formed and/or opened by respective opening means,
and conveyed with an open side to a respective inserting station, at which the sachets
are inserted into the case by means of inserting means.
[0010] At the inserting station, each case rests on one side parallel to the ground, and
has one open side facing the station, through which the sachets are let in.
[0011] Once it has been filled with sachets, the case is then conveyed to downstream sealing
stations, for final packaging.
[0012] The handling of the cases along their respective feeding paths, as well as the vibrations
generated by the operation of the machine itself, can cause accidental movements of
the sachets that had been just inserted into the cases.
[0013] Therefore the sachets, which have an irregular shape, or in any case a shape not
suitable for their stacking one on top of the other, can accidentally slip one with
respect to the other, especially if the case has not been completely filled yet: this
can cause incorrect packaging of the sachets, or damage to the sachets and/or the
cases, or even - if the sachets accidentally come out of the case - jamming of the
machine, with subsequent downtime and service costs.
[0014] It should be added that the here above described phenomenon can be further amplified
by the fact that often, the sachets will contain powdery or granular material which
is free to move, and consequently, change in an unpredictable manner the position
of the centre of gravity of the sachet itself.
[0015] US 2011/0005174 discloses a method and device for inserting tube bags, containing fragile packaging
goods, into cartons.
[0016] Each carton is held ready on a packing station, such that the bags can be inserted
into the carton by means of a delivery device, particularly a pusher.
[0017] In order to create different, ordered formations of the bags within the carton, such
carton can be moved during the filling or packing process such that the packing formation
is created due to a corresponding relative positioning of the carton at a predetermined
feed plane.
[0018] US 6,094,885 discloses a packaging station including a device for assisting the removal of articles
from a fist conveying system into a container, and for reorienting the container for
loading onto a second conveying system.
[0019] The device comprises a base, a platform pivotally connected to the base, and an actuating
mechanism configured to operatively pivot the platform.
[0020] The platform has a panel and a lip operatively configured to cooperatively support
and retain the container in a substantially inclined position, substantially adjacent
to the first conveying system, for facilitating loading of articles into the container.
The actuating mechanism pivots the platform and thus the container such that the panel
assumes a substantially horizontal position for loading the container onto the second
conveying system.
[0021] US 5,778,640 discloses an apparatus and method for packing stand-up pouches into cartons, where
flexible pouches are placed in a vertical position in a carton by tilting the carton
and its open top on its side, and placing and pushing multiple rows of overlapping
flexible pouches into the carton.
[0022] The row is picked up by a thin vacuum head on the end of a robotic arm, and moved
and placed into the tilted carton with the sequence being repeated with subsequent
rows until the carton is filled and tilted back into position.
[0023] The vacuum pick-up head is a thin, cantilevered head which is caused to tilt during
the transfer from a pick-up station to the carton.
OBJECTS OF THE INVENTION
[0024] The aim of the present invention is to improve the state of the art.
[0025] Within such technical aim, one object of the present invention is to develop a packaging
unit that allows for the correct insertion of sachets and the like into respective
box-shaped cases, preventing their incorrect positioning inside the case itself and/or
accidental sliding out.
[0026] Another object of the present invention is to make a packaging unit available which
allows the aforementioned purposes to be achieved via a technical solution characterised
by low costs and by a simple and effective use.
[0027] This aim and these objects are achieved by the packaging unit of bags, sachets, sticks,
flowpacks and the like in box-shaped cases according to the attached claim 1.
[0028] The packaging unit comprises support means for supporting at least one box-shaped
case open at one side and resting on one flank, and a station for inserting one or
more sachets, or the like, inside the case itself.
[0029] The inserting station comprises inserting means suitable for pushing one or more
sachets, or the like, onwards into the inside of the case through the aforementioned
open side.
[0030] The supporting means comprise positioning members of the case in a configuration
in which the supporting flank is inclined to a predetermined angle with respect to
a horizontal plane.
[0031] The positioning members comprise at least one first surface to which said flank of
said box-shaped case adheres, wherein said fist surface is inclined by said pre-established
angle with respect to said horizontal plane.
[0032] The positioning members comprise inclination means suitable to selectively bring
said first surface from a position in which said flank is substantially parallel to
said horizontal plane, and in which the insertion of the sachets onto said box-shaped
case is carried out, to a position in which said flank is inclined by a pre-established
angle with respect to said horizontal plane.
[0033] The inclination means comprise a fixed element, integral with the framework of the
packaging unit, and conveyor means, provided with a plurality of housings for respective
box-shaped cases; the conveyor means are movable with respect to said fixed element;
the fixed element is shaped in such a way as to determine a change in the inclination
of said flanks when the box-shaped cases come in contact with it, pulled by said conveyor
means.
[0034] This aim and these objects are also achieved by a packaging machine comprising the
packaging unit according to the attached claim 1.
[0035] Dependent claims refer to preferred and advantageous embodiments of the invention.
BRIEF DESCRIPTION OF DRAWINGS.
[0036] The features of the invention will be better understood by any person skilled in
the art from the following description and accompanying drawings, provided by way
of non-limiting example, in which:
Figures 1 to 3 are schematic and partially cross-sectioned side views of the packaging
unit, which is not part of the invention, in respective successive steps of inserting
the sachets, or the like, into a box-like case;
Figure 4 is a schematic and partially cross-sectioned side view of another embodiment
of the packaging unit, which is not part of the invention;
Figure 5 is a schematic and partially cross-sectioned side view of another embodiment
of the packaging unit, which is not part of the invention;
Figure 6 is a schematic and partially cross-sectioned side view of another embodiment
of the packaging unit, which is not part of the invention;
Figure 7 is a schematic and partially cross-sectioned side view of a further embodiment
of the packaging unit, according to the invention;
Figure 8 is a schematic and partially cross-sectioned side view of another embodiment
of the packaging unit, which is not part of the invention;
Figure 9 is a schematic and partially cross-sectioned side view of another embodiment
of the packaging unit, which is not part of the invention;
Figure 10 is a schematic and partially cross-sectioned side view of another embodiment
of the packaging unit, which is not part of the invention;
Figure 11 is a schematic and partially cross-sectioned side view of another embodiment
of the packaging unit, which is not part of the invention;
Figure 12 is a schematic and partially cross-sectioned side view of another embodiment
of the packaging unit, which is not part of the invention.
EMBODIMENTS OF THE INVENTION.
[0037] With reference to the accompanying Figure 1, a packaging unit for bags, sachets,
sticks, flowpacks, and the like, in box-shaped, which is not part of the invention,
is wholly indicated with reference number 1.
[0038] The packaging unit 1 comprises supporting means 2 for at least one box-shaped case
3.
[0039] In particular, the supporting means 2 support the case 3 resting on one flank 3a.
Moreover, the supporting means 2 support the case 3 in an open configuration at one
side 3b, through which the sachets 4, or the like, must be inserted.
[0040] In the rest of this description the generic term of sachets 4 shall mean, for convenience,
bags, sachets, sticks, flowpacks, or the like: therefore the list of possible types
of container will not be repeated each time, in order not to weigh down the reading.
[0041] The unit 1 further comprises an inserting station 5 of one or more sachets 4 into
the case 3.
[0042] The insertion of the sachets 4 takes place through the aforementioned open side 3b.
The inserting station 5 comprises inserting means 6.
[0043] Moreover, the inserting station 5 can comprise, for example, a collection portion
5a of the sachets 4 to be inserted into the case 3.
[0044] The inserting means 6 are suitable for pushing one or more sachets 4 onwards into
the inside of the case 3 through the aforementioned open side 3b.
[0045] The inserting means 6 may comprise, for example, a pusher or other similar elements.
[0046] The inserting station 5 may be fixed; or it may be movable, and paired with respective
feeding means 5b of any type known in the art.
[0047] According to one aspect of the present invention, the supporting means 2 comprise
positioning members 7.
[0048] The positioning members 7 are suitable for positioning the case 3 in a configuration
in which the supporting flank 3a is inclined to a predetermined angle α with respect
to a horizontal plane A.
[0049] As will be better illustrated below, the positioning of each case 3 in the aforesaid
inclined configuration prevents that the sachets 4 placed therein may accidentally
move or partially or completely come out of the case 3 during the operating steps
of packaging unit 1 operation.
[0050] According to one aspect of the invention, the positioning members 7 comprise at least
a first surface 7a, to which the supporting flank 3a of the case 3 adheres.
[0051] Said first surface 7a is inclined by the aforementioned predetermined angle α with
respect to the horizontal plane A.
[0052] In the specific embodiment shown in Figures 1-3, , the positioning members 7 comprise
at least one wedge-shaped element 8.
[0053] The wedge-shaped element 8 comprises an upper face, which in turn comprises the aforesaid
first surface 7a.
[0054] Furthermore, the wedge-shaped element 8 comprises a lower face parallel or substantially
parallel to the aforesaid horizontal plane A.
[0055] According to another aspect of the invention, the positioning members 7 comprise
at least a second surface 7b.
[0056] The bottom 3c of the case 3 rests on the second surface 7b.
[0057] The second surface 7b may be perpendicular to the first surface 7a, or it may also
be inclined by a certain angle with respect to the first surface 7a.
[0058] According to another aspect of the invention, the positioning members 7 comprise
at least one abutment element 9 for the bottom 3c of the case 3.
[0059] The abutment element 9 comprises the aforementioned second surface 7b.
[0060] The abutment element 9 can be fixed, for example with respect to the wedge element
8 and therefore also with respect to the inserting station 5.
[0061] The abutment element 9 can also be movable towards or away from the inserting station
5.
[0062] This allows the case 3 to be positioned at different distances from the inserting
station 5, or this may allow cases 3 of different sizes to be accommodated.
[0063] As can be easily understood by observing the operating sequence shown in Figures
1-3, the positioning of the case 3 with the supporting flank 3a inclined by a predetermined
angle α with respect to the horizontal plane A allows the sachets 4 to be retained
inside the case 3 in a particularly stable configuration, in which any vibrations
or inertial actions transmitted to the sachets 4, due to the operation of the packaging
unit 1, can not cause displacements such as to cause instability or poor balance conditions
inside the case 3 itself.
[0064] An object of the present invention is also a packaging machine comprising at least
one packaging unit 1 having the features described above.
[0065] The packaging machine comprises conveyor means 10 of each case 3 from and/or towards
the inserting station 5.
[0066] The conveyor means 10 can be, for example, of the belt, chain, strap type, or the
like.
[0067] According to one aspect of the invention, the positioning members 7 can be connected
to the conveyor means 10.
[0068] In other embodiments of the invention, the positioning members 7 can be released
from the aforementioned conveyor means 10, that is, in a fixed position with respect
to the inserting station 5.
[0069] The operation of the packaging unit 1 according to the invention is, in the light
of what has been described, entirely intuitive.
[0070] The sachets 4 are fed in a predetermined number to the inserting station 5; each
case 3 is taken, for example, from a store by the conveyor means 10, which lead it
to the inserting station 5 in a box-like configuration - substantially a parallelepiped
with an open side 3b.
[0071] The positioning members 7 allow the case 3 to be kept resting on the flank 3a in
an inclined configuration according to the angle α with respect to the horizontal
plane A: this ensures, once the cases 3 are filled with the sachets 4 through the
inserting means 6, that the sachets 4 stay always inside the case 3, without being
able in any way to move uncontrollably or even come out, for example, due to the vibration
generated during the operation of the packaging machine.
[0072] Another embodiment of the packaging unit 1, which is not part of the invention, is
illustrated in Figure 4.
[0073] This embodiment differs from that of Figures 1-3 in that the positioning members
7 further comprise lateral abutment means 11 for the case 3.
[0074] The lateral abutment means 11 prevent any accidental movement of the case 3 transversely
to the direction of insertion of the sachets 4 inside it.
[0075] Another embodiment of the packaging unit 1, which is not part of the invention, is
illustrated in Figure 5.
[0076] In this embodiment, the positioning members 7 comprise at least one plate element
12.
[0077] The plate element 12 comprises an upper face, which in turn comprises the aforesaid
first surface 7a.
[0078] Moreover, the aforesaid plate element 12 comprises an abutment element 9, which defines
a second surface 7b on which the bottom 3c of the case 3 rests.
[0079] The plate element 12 can be of any shape and size, without any particular limitations.
[0080] The plate element 12 can be supported by fixed parts of the packaging unit 1, or
by the base of the packaging machine.
[0081] Moreover, the plate element 12 could be replaced by another element having a different
shape but technically equivalent thereto.
[0082] Figure 6 shows an embodiment, which is not part of the invention, in which the positioning
members 7 are incorporated in the packaging machine conveyor means 10.
[0083] More in detail, the conveyor means 10 - e.g. of the belt, chain, strap type, or the
like - comprise the positioning members 7, and in particular the cross section of
the conveyor means 10 is substantially wedge shaped, like in the embodiments shown
in Figures 1-4.
[0084] Another embodiment of the packaging unit 1 according to the invention is shown in
Figure 7.
[0085] In this embodiment, the positioning members 7 comprise a plate element 12, or an
element technically equivalent to it.
[0086] Moreover, the positioning members 7 comprise inclination means 13.
[0087] The inclination means 13 are suitable for selectively bringing the first surface
7a of the plate element 12 from a position in which the supporting flank 3a of the
case 3 is parallel, or substantially parallel, to the horizontal plane A, and in which
the insertion of the sachets 4 inside the case 3 is carried out, to a position in
which the supporting flank 3a is inclined to a predetermined angle α with respect
to said horizontal plane A.
[0088] This means that, in practical operation, the sachets 4 are inserted into the case
3 when the latter is in a horizontal configuration (i.e. with the support side 3a
parallel, or substantially parallel, to the horizontal plane A), and the same is then
brought to the inclined position by a predetermined angle α with respect to the horizontal
plane A once the sachets 4 (all or only some of them) have been inserted into the
case 3.
[0089] The advantages of this solution mainly consist in the fact that insertion of the
sachets 4 in the case 3 occurs in a facilitated condition: normally, the inserting
means 6 work in a horizontal or substantially horizontal direction, and therefore
inserting stations 5 of a pre-existing type can be used.
[0090] Furthermore, another important advantage consists in that the inclination means 13
of the case 3 can be operated only when necessary: for example, it is possible to
choose to tilt the case 3 only when a certain number of sachets 4 has been inserted
inside it, or when the case 3, already filled with sachets 4, is about to be transferred
to a downstream operating station, or in any other operating phase in which this may
be of some use.
[0091] The inclination means 13 can comprise, for example, a base 14; the base 14 can be
connected to the conveying means of cases 3, or it can also be released from same.
Moreover, the inclination means 13 comprise an articulation axis 15 provided between
the base 14 and the plate element 12 on which the case 3 rests.
[0092] At the articulation axis 15, actuator means may be provided which rotate the plate
element 12 with respect to the base 14.
[0093] This allows the predetermined angle α to be varied according to the different application
requirements, for example when the dimensions of the case 3, the number of sachets
4 contained, and other things, vary.
[0094] In another embodiment of the invention, the inclination means 13 can comprise a fixed
element, integral with the framework of the packaging unit, and conveyor means, provided
with a plurality of housings for respective cases 3.
[0095] More in detail, the conveyor means are movable with respect to the fixed element;
the latter is shaped in such a way as to determine a change in the inclination of
the flank 3a when the cases 3 come into contact with it, pulled by the conveyor means.
For example, the fixed element can be shaped like a profile of a linear cam, in which
the cases, pulled by the conveyor means, act as followers; therefore, the inclination
of the flanks 3a of the cases shifts from a horizontal position to an inclined one
and vice versa, in the production steps in which this is required, due to the relative
motion of the cases 3 with respect to the fixed element.
[0096] Another embodiment of the packaging unit 1, which is not part of the invention, is
shown in Figure 8.
[0097] In this embodiment, the positioning members 7 comprise vacuum-operated gripping means
16.
[0098] The vacuum gripping means 16 are suitable for keeping the case 3 in a configuration
in which the supporting flank 3a is inclined to a predetermined angle α with respect
to the horizontal plane A.
[0099] The vacuum gripping means 16 comprise at least one gripping surface 17 suitable for
adhering to the supporting flank 3a of the case 3.
[0100] The embodiment of Figure 8 comprises a wedge-shaped element 8 such as that described
with reference to the embodiments of Figures 1-4; the gripping surface 17 is contained
in the upper surface of the wedge-shaped element 8.
[0101] The gripping surface 17 can comprise holes or openings 18 through which the vacuum
gripping means 16 act, through respective channels 19.
[0102] The vacuum gripping means 16 allow the case 3 to be kept in the desired position
in a more stable and safe manner; thanks to this, the positioning members 7 can be
constructively simpler (for example, an abutment element may not be necessary for
the bottom of the case 3).
[0103] Another embodiment of the packaging unit, which is not part of the invention, is
shown in Figure 9.
[0104] This embodiment differs from that of Figure 8 in that the positioning members 7 comprise
a plate element 12 retaining the supporting flank 3a of the case 3.
[0105] The vacuum gripping means 16 with characteristics similar to those described for
the previous embodiment operate through the plate element 12.
[0106] The packaging unit 1 according to the embodiment of Figure 9 can further incorporate
inclination means 13 such as those of the embodiment of Figure 7.
[0107] In the latter case, the solution adopted is especially advantageous since the vacuum
gripping means 16 firmly retain the case 3 and prevent accidental movements during
its inclination operation.
[0108] Another embodiment of the packaging unit 1, which is not part of the present invention,
is shown in Figure 10.
[0109] In this embodiment, the positioning members 7 comprise at least a first supporting
element 20 and a second supporting element 21 of the flank 3a of the casing 3. The
first supporting element 20 and the second supporting element 21 comprise respective
end portions supporting the flank 3a of the case 3, positioned at different heights
with respect to the horizontal plane A.
[0110] This solution is simpler and lighter than the solution comprising a wedge-shaped
element; the case 3 is supported only at very limited portions of its outer surface.
As shown in Figure 10, an abutment element 9 of the type described above can be added
to the supporting elements 20, 21, e.g. movable towards or away from the inserting
station 5.
[0111] This allows cases 3 of different sizes to be retained.
[0112] The first supporting element 20 and the second supporting element 21 can be mutually
connected to each other by a central section 22, or by other connecting elements.
[0113] The supporting elements 20,21 can be connected to the conveyor means 10 of the cases
3 - as shown in Figure 10 - or they can be released from same.
[0114] In one embodiment of the invention, at least one of the first supporting element
20 and the second supporting element 21 is selectively movable between a lowered position,
in which the flank 3a of the case 3 is parallel, or substantially parallel, to the
horizontal plane A, and in which the sachets 4 are inserted into the case 3, to a
raised position in which the flank 3a is inclined by a predetermined angle α with
respect to the horizontal plane A.
[0115] For example, the first supporting element 20 in particular can be selectively movable
between the two above mentioned positions.
[0116] In this way, a result similar to that obtained thanks to the actuation of the inclination
means 13 is obtained.
[0117] Figure 11 shows another embodiment of the packaging unit 1, which is not part of
the invention, which differs from that of Figure 10 in that in the positioning members
7 the second support element 21 is substantially at the same height as the central
section 22; moreover, the abutment element 9 is made to be integral with the same
central section 22.
[0118] This is a simplified solution with respect to that of Figure 10, but less versatile
in terms of dimensions of the cases 3.
[0119] In the embodiment shown in Figure 12, the positioning members 7 are incorporated
in the conveyor means 10 of the cases 3.
[0120] More in detail, Figure 12 shows as a cross section an example in which the conveyor
means 10 comprise a belt, or a chain, a strap, or the like (seen in cross-section);
the positioning members 7 comprise a first edge 23 and a second edge 24 of the belt,
or chain, or strap, which reach different heights with respect to the horizontal plane
A, and therefore allow the case 3 to be positioned in the desired inclined configuration.
[0121] It is specified that in all the previously described embodiments of the invention
the predetermined angle α can be comprised between 1° and 70°.
[0122] It has thus been seen how the invention achieves the intended purposes.
[0123] The invention greatly limits the risk that the sachets inserted in the case can move
or come out accidentally during the packaging operation steps.
[0124] This result is obtained with technically simple and effective solutions, easily adoptable
even in pre-existing packaging machines or packaging units.
[0125] In the event that the technical characteristics mentioned in the attached claims
are followed by reference numbers, such reference numbers are introduced for the sole
purpose of further clarifying the claims, and they consequently do not have any limiting
effect.
[0126] The present invention has been described according to preferred embodiments, but
various equivalent versions are possible still within the scope of the appended claims.
1. Einheit (1) zum Verpacken von Taschen, Beuteln, Stöcken, Durchflusspackungen und dergleichen
(4) in kastenförmigen Gehäusen (3), umfassend Mittel (2) zum Tragen mindestens eines
kastenförmigen Gehäuse (3) während das kastenförmige Gehäuse (3) an einer Seite (3b)
offen ist, und während die Mittel (2) an einer Flanke (3a) des kastenförmigen Gehäuses
(3) anliegen, und eine Station (5) zum Einführen eines oder mehrerer Beutel (4), oder
dergleichen, innerhalb des Gehäuses (3), wobei die besagte Einführstation (5) Einführmittel
(6) umfasst, die geeignet sind, einen oder mehrere Beutel (4), oder dergleichen, in
Richtung des Inneren des Gehäuses (3) zu drücken durch die offene Seite (3b), wobei
die Tragmittel (2) Positionierungselemente (7) des kastenförmigen Gehäuses (3) in
einer Konfiguration umfassen, in der die Flanke (3a) um einen vorbestimmten Winkel
(a) in Bezug auf eine horizontale Ebene (A) geneigt ist, wobei die besagte Positionierungselemente
(7) mindestens eine erste Oberfläche (7a) umfassen, an der die Flanke (3a) des kastenförmigen
Gehäuses (3) haftet, wobei die besagte erste Fläche (7a) um den vorbestimmten Winkel
(a) in Bezug auf die horizontale Ebene (A) geneigt ist, und wobei die besagte Positionierungselemente
(7) Neigungsmittel (13) umfassen, die geeignet sind, die erste Oberfläche (7a) selektiv
aus einer Position zu bringen, in der sich die Flanke (3a) im wesentlichen parallel
zu der horizontalen Ebene (A) befindet, und bei dem das Einführen der Beutel (4) in
das kastenförmige Gehäuse (3) durchgeführt wird, zu einer Position, in der die Flanke
(3a) um einen vorbestimmten Winkel (a) in Bezug auf die horizontale Ebene (A) geneigt
ist, der dadurch gekennzeichnet ist, dass die besagte Neigungsmittel (13) ein festes Element, das in den Rahmen der Verpackungseinheit
integriert ist, und Fördermittel umfassen, die mit mehreren Gehäusen für die jeweiligen
kastenförmigen Gehäuse (3) versehen sind, wobei die besagte Fördermittel in Bezug
auf das feste Element beweglich ist, wobei das besagte feste Element so geformt ist,
dass eine Änderung der Neigung der Flanken (3a) bestimmt wird, wenn die kastenförmigen
Gehäuse (3) mit dem festen Element in Kontakt kommen, wenn die kastenförmigen Gehäuse
(3) von den Fördermitteln gezogen werden.
2. Einheit nach Anspruch 1, wobei die Positionierungselemente (7) mindestens ein Plattenelement
(12) umfassen, das mit einer Oberseite versehen ist, die die erste Oberfläche (7a)
umfasst.
3. Einheit nach Anspruch 1, wobei die Positionierungselemente (7) mindestens eine zweite
Oberfläche (7b) umfassen, an der der Boden (3c) des kastenförmigen Gehäuses (3) zum
Aneinanderstoßen geeignet ist.
4. Einheit nach Anspruch 3, wobei die Positionierungselemente (7) mindestens ein Abutmentelement
(9) für den Boden (3c) des kastenförmigen Gehäuses (3) umfassen, wobei das Abutmentelement
(9) die zweite Oberfläche (7b) umfasst.
5. Einheit nach Anspruch 4, wobei das besagte Abutmentelement (9) fest oder verschiebbar
ist, wenn es sich der Einführstation (5) nähert oder von dieser wegbewegt, um das
kastenförmige Gehäuse (3) in unterschiedlichen Abständen von dem Einführstation (5)
und/oder zur Aufnahme von kastenförmigen Gehäusen (3) unterschiedlicher Größe.
6. Einheit nach Anspruch 1, wobei das besagte feste Element wie ein Profil eines linearen
Nockens geformt ist, und wobei die kastenförmigen Gehäuse (3), die von den Fördermitteln
gezogen werden, Anhänger wirken, so dass die Neigung der Flanken (3a) variiert aufgrund
der Relativbewegung der kastenförmigen Gehäuse (3) in Bezug auf das feste Element.
7. Verpackungsmaschine, umfassend mindestens eine Verpackungseinheit (1) nach einem der
Ansprüche 1 bis 6, und Fördermittel (10) der kastenförmigen Gehäusen (3) von und/oder
in Richtung der Einführstation (5), wobei die Positionierungselemente (7) mit den
Fördermitteln (10) verbunden sind, oder in die Fördermittel eingebaut sind.