U.S. patent application number 11/591936 was filed with the patent office on 2007-05-10 for system of package filling and sealing.
Invention is credited to Simone Rossi.
Application Number | 20070101686 11/591936 |
Document ID | / |
Family ID | 38002367 |
Filed Date | 2007-05-10 |
United States Patent
Application |
20070101686 |
Kind Code |
A1 |
Rossi; Simone |
May 10, 2007 |
System of package filling and sealing
Abstract
The present invention refers to means for package sealing. In
particular, it refers to a system of machines for package filling
and sealing that comprises a pair of oscillating arms opposed and
facing each other, simultaneously activated by a main cog through
rods. The facing faces of the oscillating arms unite mid-point to
them so, in other coordinated operation, to press, cut and seal the
sleeve forming the bag in process, which displaces itself through
that mid-point. The invention also involves means for pre-piling up
in the feeding of the packages, as soon as means for compressing
the packages by vibration and compressing the bale formed by the
whole of the packages.
Inventors: |
Rossi; Simone; (Acarigua,
VE) |
Correspondence
Address: |
WILLIAM COLLARD;COLLARD & ROE, P.C.
1077 NORTHERN BOULEVARD
ROSLYN
NY
11576
US
|
Family ID: |
38002367 |
Appl. No.: |
11/591936 |
Filed: |
November 2, 2006 |
Current U.S.
Class: |
53/552 |
Current CPC
Class: |
B65B 57/20 20130101;
B65B 35/52 20130101; B65B 9/213 20130101; B65B 51/30 20130101; B65B
63/00 20130101 |
Class at
Publication: |
053/552 |
International
Class: |
B65B 9/06 20060101
B65B009/06 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 2, 2005 |
VE |
2242 |
Claims
1. A system for filling and sealing packages, where it is made use
of a set of elements to fill, hold, seal and deliver a bag formed
from a film sleeve of thermoplastic material, said system
comprising an alternative movement cog connected to a couple of
rods that activate opposing oscillating arms, where said
oscillating arms also comprise within their internal upper face
elements of clamps/counter-clamps, thermal sealing elements and
cutting elements.
2. A system, according to claim 1, wherein because said cog
presents an alternative movement that corresponds with a portion of
rotation of same, which movement is transmitted to a couple of rods
connected to certain opposing oscillating arms that define a
converging/diverging displacement on a point intermediate between
them, as of the relative position of the alternating cog.
3. A system, according to claim 1, where the oscillating arms
possess within their upper internal faces or of contact, subjection
clamps and counter-clamps of a sleeve of thermoplastic material
forming the bag, where said sleeve runs in the intermediate space
formed between the oscillating arms.
4. A system, according to claim 1, where the oscillating arms
besides comprise between the clamps and counter-clamps, parallel
sealing and counter-sealing elements, upper and lower, for the
thermal union of the sleeve forming the bag in their upper and
lower extremes.
5. A system, according to claim 1, wherein because between the
sealing and counter-sealing elements are arranged cutting elements
to separate the intermediate space of the sleeve/bag between the
upper and the lower sealing and which define the sealing of the
bottom of the bag in formation and the sealing of the upper extreme
of the already formed bag.
6. A system, according to claim 1, where the feeding of said system
is done by means of a transporting belt or endless belt, which
drives the packages up to a platform furnished with a lateral
pushing plate, which is activated when it supports a predetermined
number of packages, by means of a sensor-counter, pushing the
packages towards a piling box.
7. A system, according to claim 1, comprising a lower pusher
element, once the bag has been filled and placed over said pusher,
that thrusts the whole upwards, to eliminate the upper empty space
and forms a bale essentially free from spaces not occupied by
packages.
Description
BRIEF BACKGROUND OF THE INVENTION
[0001] A characteristic of package sealing systems of the prior
technique is the complexity of its functioning and of the elements
comprising them, where generally linear or gyratory mechanisms are
used that require in one or the other case a multiplicity of pieces
that operate repetitively to enter and exit a determined cycle of
the process. On the other hand, such diversity of pieces require
bearings, bars and rotation or pivoting points that it is necessary
to lubricate and therefore susceptible of accumulating residue of
products that in some way or independently from the material being
processed, may result abrasive or at least, to form a kind of paste
with the lubricant, preventing the action this last one.
[0002] The present invention appears to solve the aforementioned
problems with a simple mechanism and a minimum of pieces, [0003]
where besides its movements are limited and of a short run.
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] The characteristics and details that define the invention
are graphically represented in the annexed illustrative figures,
very schematized but expressive of the movement and operation of
the whole, wherein the basic operations executed by the system are
shown. It is worth observing that in lieu of simplicity only the
mechanism of the sealing system and its connected mechanisms are
shown, obviating other components such as the bag dragging
mechanisms, relays, run limiters, electronic synchronization
devices and others used in the specialty, being they of the
conventional type. Likewise, each one of FIGS. 1-4 that follow,
show a plain and a connected view tri-dimensionally represented for
a better understanding of the several elements and their location.
In such cases there only shall be made reference in description to
the plain views, through the usual identifying numbering of the
elements.
[0005] FIG. 1, is a view that shows the system at a stage that
corresponds to the position of a bag already filled and sealed at
its bottom and waiting for the upper seal and where the oscillating
arms are at the most distant position between them.
[0006] FIG. 2, is a view where the main cog has made a descending
movement, transmitting the corresponding movement to the
oscillating arms through the rods, determining the imprisonment of
the bag's sleeve.
[0007] FIG. 3, is a view that shows the sealing and cutting of the
portion of the imprisoned sleeve.
[0008] FIG. 4, is a view that shows the return movement of the main
cog to its initial position of the FIG. 1 (prior to the descent of
the sleeve), where the bag being processed has already been sealed
and freed.
[0009] FIG. 5 is a partial, schematic view, in projection, of the
pre-piling mechanism.
[0010] FIG. 6 is a partial, schematic view, in projection, of the
compressing whole of the packages.
[0011] FIGS. 7a and 7b show a sequence of compression of the bale
formed.
[0012] FIGS. 1 to 4 correspond, in a general way, with the sealing
stages of the bag, whereas the other FIGS. 5 to 7b correspond with
connected operations of the system.
[0013] From the aforementioned figures and in particular from FIG.
1, it can be noted that the system possesses a cog 8 foreseen to
operate in an alternative way, limited to a part of rotation of
same, which is connected mechanically to rods 7, in their turn
connected, the first one to an oscillating arm 4A further and the
second one, to oscillating arm 4B closer. Oscillating arms 4A and
4B have towards their superior internal extreme clamps and
counter-clamps 2, respectively and in the space interposed between
said clamps and counter-clamps 2, there can be found a sealing
element 5 with an intermediate concavity in oscillating arm 4A and
a counter-sealing element 6, with a cutting knife in oscillating
arm 4B.
[0014] A descending sleeve 3, generally formed by a plastic film,
is foreseen to descend at synchronized intervals by a dragging
mechanism (not shown) through the mid-space formed by the clamps
and counter-clamps 2, when they are in the position shown in FIG.
1.
[0015] The system condition, shown in FIG. 1, is that which
corresponds to a "frozen" stage (since the process is continuous)
wherein a part of the bag (formed from the sleeve) has already been
filled and sealed at its bottom extreme and is waiting for the
sealing and upper cut and therefore, set within the space formed
between the clamps-counter-clamps 2 and as a consequence of the
elevated position of the alternative movement cog 8, which keeps
contracted rods 7 and oscillating arms 4A/4B.
[0016] FIG. 2 shows the moment immediately after the one pointed
out for FIG. 1, where cog 8 has made a movement of partial rotation
downwards, which movement causes that the clamps/counter-clamps 2
should displace themselves to meet at a central intermediate point,
imprisoning at said point the previously arranged part of the
sleeve 3/bag 1 (FIG. 1). In this guise, of imprisonment of the
sleeve/bag, which corresponds to the upper part of said bag 1, take
part the elements of sealing 5 and counter-sealing 6 (see FIG. 3),
lineally propped and in opposite directions (mechanism not shown,
movement indicate by a horizontal arrow) towards the center, where
such elements 5 thermally "saw" the plastic film of sleeve 3 in two
parallel areas upper and lower (determined by the two projections
in the guise of "C" of element 5), leaning on the countersealing
element 6. This action determines the obtaining of the sealing of
the bag's bottom that is going to be formed (upper sealing element)
and at the same time defines the upper sealing of bag 1 already
formed (lower sealing element). The counter-sealing element 6
possesses a cutting knife that inserts itself during the sealing in
the cavity formed by the sealing elements 5, defining now the
separation of bag 1 lower already formed, from the upper bag in the
process of formation. However, both parts of the plastic film of
sleeve 3 and of bag 1 are kept in position by the subjecting effect
of clamps 2.
[0017] The later and last stage, before beginning a new cycle, may
be seen in FIG. 4, where the movement of cog 8 has again ascended
provoking the separation of oscillating bodies4A/4B and therefore
of clamps and counter-clamps 2, wherefore now the bag 1 is freed
and drops because of gravity.
[0018] An important and novel characteristic of the system, is the
movement that oscillating bodies 4A-4B make and which, of course,
is transmitted to clamps and counter-clamps 2 which imprison the
sleeve maker of the bag. It may be seen that this movement is not
linear but moreover of a progressive sealing, making a little
angular "sweep" of the clamps-counter-clamps that rotate on an
imaginary lower apex arranged lower than said clamps.
[0019] This particularity determines a uniform sealing, non
aggressive, on the sleeve's lamina and therefore a better
sealing.
[0020] FIG. 5 shows the way the packages which are going to be
packed or baled pile up, where a transporting belt 9 drives
packages 10 towards a fixed platform 12 in a controlled way, so as
to form a certain number of packages lined up (two packages in the
alluded figure) on platform 12. This counting of the number of
packages is done by a mobile plate 11 connected to a sensor (not
shown), in such a way that when a certain number of packages (two
in this case) pass, a thrust plate 13 is activated, of a movement
perpendicular to that of the transporting belt 9, that will push
said packages on a "lung" or mobile box 14, that will go down
automatically, in a coordinated manner, as it receives packages 10,
that later and as it has been explained before are sacked in bag
1.
[0021] Once the packages 10 are placed in the bag 1, which has
already its bottom formed, the whole of bag 1 and packages 10 is
subjected to lateral vibrations by plates 15, in such a way that
packages 10 should get perfectly compressed inside the bag 1, as is
shown in FIG. 6.
[0022] FIG. 7a is a front schematic view of the bag formed an
filled with the packages, already pressed over a lower pusher 16,
where still there is an upper space vacant, which in FIG. 7b is
eliminated by the thrust upwards of pusher 16.
[0023] It may be seen from all that has been previously expounded,
the simplicity and plainness of the mechanisms used, which shall
determine the ease of operation and efficiency in production.
* * * * *