Information
-
Patent Grant
-
6173551
-
Patent Number
6,173,551
-
Date Filed
Tuesday, April 7, 199826 years ago
-
Date Issued
Tuesday, January 16, 200124 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Johnson; Brian L.
- Luby; Matthew
Agents
- Burns, Doane, Swecker & Mathis, LLP
-
CPC
-
US Classifications
Field of Search
US
- 053 411
- 053 1314
- 053 1315
- 053 64
- 053 3894
- 400 708
- 101 4241
- 347 4
- 347 104
-
International Classifications
-
Abstract
A cigarette packing apparatus comprising means for repetitively progressing labels through a print location, a signal generator configured to generate a signal indicative of presence of the label as it passes adjacent the print location, a second signal generator configured to generate a signal indicative of a speed at the print location; a fluid jet printer head adjacent the print location and a controller configured to operate the printer head responsively to the first and second signal generators, with an additional arrangement within the packing apparatus defining a contact-free path portion sufficient for ink to dry at the indicia-bearing portion of the label as the label is progressed beyond the print location.
Description
FIELD OF INVENTION
The present invention relates generally to ink jet printing of information on cigarette packaging, and more particular to apparatus and methods for applying pre-selected information on cigarette soft pack packaging utilizing ink jet technology.
BACKGROUND OF THE INVENTION
In cigarette production, bundles of cigarettes of a predetermined number (usually 20) are wrapped in a paper and aluminum laminate which is referred to in the art as “foil”. Thereafter, the foil wrapped bundle (“foil-bundle”) is enwrapped in either a soft pack label comprising a paper or paper laminate, or in the alternative is enwrapped within a cardboard hinge lid blank.
In the past, information concerning the product (such as its time and/or place of manufacture or other information at the election of the manufacturer) was embossed or otherwise applied to the foil portion of the packaging. A consequence of such arrangement was that the outer portion of the packaging, such as the soft pack label or the cardboard blank, together with any cellophane overwrap, would have to be removed in order to access the encoded information. Accordingly, prior practices necessitated the opening and or destruction of the cigarette pack in order to ascertain date of manufacture or the like.
Printing the desired encoded information upon the outer portion of the cigarette packaging has presented manifold difficulties. Cigarette manufacturing and packing operations are conducted at extreme speeds such that any on-line printing operation at the cigarette packer tends to cause ink smearing both upon the cigarette product and upon portions of the packing machinery. Ink smears on the product compromises its quality and may lead to additional rejection of product and other manufacturing inefficiencies. Ink smears on the manufacturing machinery necessitates clean-up, taking the machine out of production and so creating additional costs.
Another particular problem associated with soft pack cigarette product is that the body of the completed package is pliable and does not present a consistent surface for precise printing operations. Accordingly, the finished soft pack packaging itself is not conducive to printing operations once the package has been fully formed.
Another difficulty in attempting to execute on-line printing operations within a cigarette packing machine is that placement of printing apparatus may interfere with smooth and consistent feeding of the packaging material.
OBJECT AND SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide a novel method and apparatus for applying printed indicia upon an outer portion of the cigarette packaging on an on-line basis at a cigarette packing machine.
Another object of the present invention is to provide a method and apparatus for repetitively and accurately placing printed indicia upon an outer portion of cigarette packaging at extreme machine speeds.
Still another object of the present invention is to provide a method and apparatus for applying printed indicia upon exterior portions of a cigarette packaging such that ink smears upon the packaging and/or upon packing machinery is avoided.
Still another object of the present invention is to execute an on-line printing operation without disturbing the smooth and consistent feeding of the packaging material, with particular concern of avoiding circumstances which would tend to skew packaging material from its intended pathway.
These and other objects are achieved by the present invention which provides a cigarette packing apparatus comprising means for repetitively progressing packaging material (preferably a soft pack label) through a print location, a signal generator configured to generate a signal indicative of presence of the packaging material as it passes adjacent said print location, a second signal generator configured to generate a signal indicative of a speed at the print location; a fluid jet printer head adjacent the print location and a controller configured to operate the printer head responsively to the first and second signal generators, with an additional arrangement within the packing apparatus defining a contact-free path portion sufficient for ink to dry at the indicia-bearing portion of the packaging as the packaging material is progressed beyond the print location. Another aspect of the present invention is provision for an air jet blower adjacent the print location to accelerate drying of the printed indicia.
BRIEF DESCRIPTION OF THE DRAWING
Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of the preferred embodiments, when considered in conjunction with the accompanying drawing, wherein:
FIG. 1
is a schematic of a soft pack packing machine modified in accordance with a preferred embodiment of the present invention;
FIG. 2A
is a perspective view of cigarette packaging which bears printed indicia applied in accordance with the present invention;
FIG. 2B
is a planar view of the print-bearing side of an unfolded, cigarette packaging label bearing printed indicia applied in accordance with the present invention;
FIG. 3
is a schematic side view of a preferred embodiment of the present invention for the coding of soft pack cigarette packaging;
FIG. 4
is a perspective view of the preferred embodiment shown in
FIG. 3
;
FIG. 5A
is a detailed perspective view of portions of the fixed housing frame and the delivery roller assembly of the label-feed roller assembly constructed in accordance with the preferred embodiment shown in
FIG. 3
;
FIG. 5B
is a planar view of a backside of the fixed housing frame shown in
FIG. 5A
;
FIG. 5C
is a detailed perspective view of a pivotal housing frame of the label-feed roller assembly constructed in accordance with the preferred embodiment shown in
FIG. 3
; and
FIG. 6
is a top planar view of a packaging label passing between lower idlers rollers of the fixed housing frame and the lower driven rollers of the pivotal housing frame.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to
FIGS. 1 and 2B
, the present invention provides a cigarette packaging apparatus
10
and method, wherein the apparatus
10
includes an ink jet printer system
40
in accordance with a preferred embodiment of the present invention. The packaging apparatus
10
typically includes a controller
30
having an operator interface for selectively controlling the speed and operation of the packaging apparatus
10
. Preferably, the cigarette packaging apparatus
10
comprises a G. D X-1 or a G. D X-500 soft pack packing machine, which are manufactured and sold by G. D Societa per Azioni of Via Pomponia 10, 40100 Bologna, Italy, although the teachings which follow may be readily applied to other commercially available cigarette packaging machines upon a reading and understanding of the detailed description which follows.
The aforementioned packaging apparatus
10
includes a label-feed roller assembly
20
arranged to repetitively directing individual labels (soft pack labels)
25
along a vertical pathway
44
to a folding station
27
. The timing and execution of the feeding operations through the label-feed roller assembly
20
and the timing and execution of folding operations at the folding station
27
are coordinated by the machine controller
30
. In accordance with a preferred embodiment of the present invention, an ink jet printer system
40
is operative at a print location
42
along the label-feed roller assembly
20
so that the as the soft pack labels
25
progress along the feed path
44
and pass the print location
42
, the ink jet printer system
40
applies pre-selected inked indicia
3
upon each of the soft pack labels
25
at a pre-selected location along each label
25
.
Referring now to
FIGS. 2A and 2B
, the printed indicia
3
preferably comprise characters that encode or otherwise indicate information such as the date and/or place of manufacture, work shift or machine, brand type or other pre-selected bits of information. Preferably, the printed information is applied at a pre-selected panel portion
4
of the label
25
, which upon conclusion of all folding operations, lies in a region between the fold lines
5
a
and
5
b
adjacent the vee fold lines
6
a
and
6
b
at the bottom in portion of the completed cigarette pack
7
. Such location at the end fold portion is preferred, because it is usually is unobtrusive of decorative patterns or other printed matter such as tax stampings
11
or warnings
14
that are typically applied to the cigarette pack
7
. Preferably, the pre-selected location
4
is surface treated, such as being scored or coated, so that they readily retain the ink received from the ink jet printer system
40
.
The pre-selected locations
4
may be situated in places other than that specifically shown in
FIGS. 2A and 2B
, such as upon entirely different portion of the end panel or upon other panels of the label
25
.
Referring now to
FIGS. 1 and 3
, the ink jet printer system
40
preferably comprises a print controller
48
, an ink jet printer head
46
located adjacent the aforementioned print location
42
, a product detect sensor
50
located adjacent (preferably to one side or just above) the ink jet printer head
46
and an air jet blower
52
. Downstream of the print location
46
, the label-feed roller assembly
20
is provided with arrangements that will be detailed in the discussion which follows, such that any printed indicia
3
that is applied to any label
25
by the ink jet printer head
46
is relieved of any contact with the label-feed system
20
such the labels
25
arrive at the folding station
27
in an unsmeared condition and without skew.
The controller
48
of the ink jet printer system
40
is linked to the controller
30
of the packaging apparatus
10
so as to receive signals from the latter indicating operation of the packaging apparatus
10
(an “on/off” signal) as well as its speed of operation (a “machine speed” signal). The latter signal may be routed from the controller
30
, itself or directly off a shaft-encoder
60
typically provided as part of the general drive mechanism
62
of the packaging apparatus
10
.
The preferred operational environment of the present invention includes a cigarette packaging apparatus
10
such as a G.D X-500 packer whose general layout is schematically represented in FIG.
1
. Typically, such machines collate individual cigarettes
102
into a plurality of cigarette bundles
100
(usually 20 cigarettes per bundle) and direct same in succession onto a first rotatable machine wheel
105
. At an exit portion of the first wheel
105
, a plunger pushes the bundle
100
into a second machine wheel
108
together with a piece of foil
104
, and the bundle
100
and foil undergo further wrapping operations. At the exit portion of the second wheel
108
, the bundle
100
is fully enwrapped within the foil piece
104
and is situated adjacent a folding station
27
at which the label-feed assembly
20
has placed a label
25
.
Referring now also to
FIG. 3
, the folding station
27
includes a vertically adjustable stop
170
at the folding station
27
for placing a received label
25
in a desired position relative to the third wheel
114
and the plunger
110
of the second wheel
108
. The plunger
110
then urges the resultant foil bundle
106
through the folding station
27
so as to plunge the foil bundle
106
together with the label
25
into a receiver
112
of a third wheel
114
of the packaging apparatus
10
.
Upon passage about arcuate portions of the third wheel
114
and transfer to and motion about the fourth wheel
116
, the label
25
is wrapped about and folded into final form about the foil bundle
106
. Upon removal of the folded cigarette package
118
from the fourth wheel
116
, the folded cigarette package
118
is optionally passed through a closure stamp application station
120
and collected in face to face relation along an exit ramp
122
.
Each of the first, second, third and fourth wheels
105
,
108
,
114
and
116
are driven by the drive system
62
of the cigarette packaging
10
such as is typically provided in GD X-1 and GD X-500 packing machines.
Typically, soft pack labels are fed from one or more continuous reels
130
through a system of tension rollers
132
and one or more decurlers
134
,
136
. Referring particularly to
FIG. 3
, the continuous ribbon of labels
137
passes along a horizontal path portion
138
, along which is located a cutting station
140
. In the preferred embodiment, the cutting station
140
includes a detector
142
for establishing a signal to the machine controller
30
that the continuous ribbon of labels
137
is adjacent the cutting station
140
. A driven sector wheel
144
includes a notch
146
for registering with a leading edge
39
of the ribbon
137
as it locates at the cutting station
140
. Upon registration, the cutter
146
severs the label
125
from the remainder of the ribbon
137
. Upon completion of the severing step at the rotary cutter
146
, the sector wheel
144
in cooperation with the arcuate guide
148
directs the label
25
into the label-feed roller assembly
20
.
In the alternative, pre-cut labels
25
may be fed directly to the label-feed roller assembly
20
. Preferably, such would include a feed arrangement in cooperation with the sector wheel
144
as previously described, or an equivalent thereof so as to properly direct individual labels
25
into vertical path portion
44
of the label-feed roller assembly
20
.
In either event, preferably a glue applicator
150
is located just downstream of the sector wheel
144
to apply adhesive, preferably in the form of a liquid glue, to selected locations along the label
25
as it enters the label-feed roller assembly
20
. Typically, the glue applicator
150
comprises one or more rotary daubers
152
placed adjacent glue pots
121
such that upon rotation the dauber picks up an incremental amount of adhesive from the glue pot
121
and places it upon a selected portion or portions of the label
25
. Preferably, the dauber
152
applies adhesive to the non-printed side of the label
25
.
Adjacent the glue dauber
152
is situated a door assembly
160
of the label-feed roller assembly
20
. The door assembly
160
provides support for a back-up roller
163
arranged in opposing relation to the glue dauber
152
. The door assembly
160
also supports a first set of opposing rollers
165
and a second, lower set of opposing rollers
167
. The label-feed roller assembly
20
further comprises a delivery roller assembly
170
located beneath the door assembly
160
. The delivery roller assembly
170
supports a guide plate
200
, a roller pin
210
and a biased idler rollers
211
adjacent end portions of the roller pin
210
.
Still referring to
FIGS. 3 and 4
, as a label
25
is drawn from the cutting station
140
by rotation of the sector wheel
144
, it enters the door assembly
160
of the label-feed roller assembly
20
, whereupon its leading edge
39
′ creates a change in light intensity that is detected by the sensor
50
through the light pipe
51
located adjacent the ink jet printer head
46
. As a result, the print controller
48
commands execution of a print operation by the ink jet head
46
as the label
25
passes through the print location
42
along the door assembly
160
. The controller
48
also executes a coordinated command to discharge air through the air jet port
52
to accelerate drying of the indicia
3
printed upon the label
25
by the ink jet printer head
46
. The controller
48
is programmed to await receipt of the next signal from the sensor
50
that a subsequent label
25
has entered the print station
53
.
Ink is supplied to each ink jet printer head
46
from a reservoir
49
, whose level is monitored by the print controller
48
of the ink jet printer system
20
. Preferably, the ink supplied and discharged from the ink jet printer head
46
is a quick-drying, water-based ink, preferably Number 99-4520 Q which is available from Videojet Systems International, Inc. of Wood Dale, Ill. 60191-1073.
The ink jet printer system
20
further includes a product detect sensor system preferably comprising an optical sensor
50
and an optical pipe
51
extending from the sensor
50
to a location adjacent the print location
42
on the door assembly
160
. The sensor
50
is arranged to generate a signal upon detection of a change in light intensity received from the optical pipe
51
. This indicative signal is communicated to the print controller
48
of the ink jet printing system
20
. The light receiving end
51
a
of the optical pipe in a fixed position, preferably adjacent the ink jet printing head
46
, preferably to one side or immediately above same.
Both the sensor system and the controller
48
is obtainable from Videojet Systems International, Inc. of Wood Dale, Ill. 60191-1073. The controller
48
preferably comprises a Videojet ES 170i Ultra High Speed Printer from the same Videojet Systems International, Inc. of Wood Dale, Ill. A suitable commercially available product suitable for use as the sensor
50
is a Tri-tronics Photoeye SER-FI. A commercially available Fiber Optic-Cable BF-B-36T and lens (UAC-5) may be used for the optical pipe
51
.
The print controller
48
and system controller
30
are configured to operate the ink jet printer system
20
as follows: once the packaging machine
10
is powered up and the printer control box
48
is ready to print, the packaging machine
10
is allowed to start normally. If the printer
20
at any time is unable to print due to such factors as loss of power, low ink supply or make-up levels or other internal fault, the system controller
30
shuts down the packaging machine
10
. A warning light is illuminated prior to shut down to indicate the aforementioned conditions, so as to facilitate corrective action by the operator.
When the packaging machine
10
is operating, the print controller
48
receives a signal from the product detect sensor
50
and a second signal from the shaft encoder
60
of the central drive system of the packaging machine
10
(in the alternative, the print controller
48
might be linked to a separate shaft encoder or other device; shaft encoders themselves employ a proximity sensor or the like to generate a signal upon each rotation of the shaft to which it is operatively affixed). From processing these signals, the controller
48
of the ink jet coder system
20
can resolve when a cut label
25
will arrive at the print location
42
and how fast it is moving. With such information, the controller
48
executes a printing operation such that the desired information is placed upon the packaging piece
25
consistently, both as to its placement, character size and layout.
In the printer head
46
, ink is dispensed droplet by droplet in accordance with known fluid jet technologies, wherein ink is sent under pressure to an emitter having a nozzle, while at the same time a piezoelectric device (resonator) transmits acoustic vibration to the jet, causing the jet of ink to break up into droplets of a consistent size, such as approximately 70 microns or thereabouts. Typically, one or more electrodes adjacent the jet at the break-off point apply a charge proportional to the voltage applied to the electrodes.
The charged droplets are then directed between deflection plates between which an electrical potential is maintained. The droplets are thus deflected from their initial trajectory proportionately to their electrical charge. Any uncharged droplets are captured in a trap and recycled in the ink reservoir.
The combination of the drop deflection and of the object movement perpendicular to this deflection enables writing of all kinds of patterns, notably characters, on any substrate regardless of its nature.
The controller
48
is further programmed to operate the air jet blower
52
in timed relation to the aforementioned signals from product detect sensor
50
and shaft encoder
60
. Preferably the air jet blower receives pressurized air from a machine system source
53
such as that supplied at the solenoid of the closure stamp application station
120
. At the command of the print controller
48
, such arrangement provides air to the jet blower
52
at a pressure of approximately 20 psiag when the machine
10
is operating at a speed of approximately 400 packs a minute. Other sources of machine-sourced air might be readily employed, or alternatively, separately dedicated sources of air or other gas.
Referring now to FIGS.
5
a
and
5
b
, the door assembly
160
preferably comprises a fixed housing frame
162
(FIG.
5
a
) and a pivotal housing frame
164
(FIG.
5
B), which are hinged together at a hinge
165
a
,
165
b
, or some other convenient arrangement such that the pivotal frame may be swung away from the fixed door frame
162
after operations for accessing the interior of the door assembly
160
to clear jams or to perform maintenance and repair.
Referring particularly to
FIG. 5A
, the fixed housing frame
162
generally faces (is situated along) the print-bearing side of the labels
25
as they pass through the door assembly
160
. The back-up roller
163
is supported at the upper portion of the fixed housing frame
162
and is driven by a gear-wheel connection
163
g
with the dauber
152
. A first pair of idler rollers
172
b
,
172
b
are located beneath the back-up roller
163
and are part of the aforementioned opposing set of rollers
165
. The fixed housing frame
162
also supports a second lower set of idler rollers
178
a
,
178
b
which are part of the aforementioned lower opposing set of rollers
167
. The fixed housing frame
162
further includes guide surfaces, including longitudinal edges
168
,
169
, and at least two, preferably three, or possibly more, rails
174
,
175
and
176
to confine the label
25
against excessive bending or folding action as it passes through the door assembly
160
.
Preferably, the upper idler roller
172
a
and the lower idler roller
178
a
are located along the same rail
174
, while the upper idler roller
172
b
and the lower idler roller
178
b
are located along the same rail
176
. A transverse notch
179
is established in a middle portion of the fixed housing frame between the upper and lower sets of idler rollers
172
a,b
and
178
a,b
to provide a port through which the ink jet printer head
46
and the optical pipe
51
of the ink jet printing system
40
may locate. Preferably, the discharge port
47
of the ink jet printer head
46
is vertically aligned with the guide rail
176
, and therefore the idler rollers
172
b
and
178
b
as well. Such alignment and proximity promotes consistent placement of the target surface portion
4
of each passing label
25
relative to the ink jet printer head
46
.
The notch
179
in the fixed housing fame
162
bisects the rail
176
into an upper portion
176
a
having a smooth surface and a lower rail portion
176
b
the latter which is provided with a grooved surface
185
. The groove
185
is vertically aligned beneath the discharge port
47
of the ink jet printer head
46
and is of a width sufficient to provide clearance for any printed indicia that may be applied to the passing label
25
. In the preferred embodiment, the groove
185
is 15 millimeters wide and approximately one-half millimeter deep, although it is contemplated that the dimensions of the groove
185
might be varied in accordance with the particular application. For example, a wider field of printed indicia
3
might require a wider groove
185
and visa-versa.
Likewise, a groove
179
b
is provide in the lower idler roller
178
b
situated along the lower guide rail portion
176
b
. A similar groove
179
a
is provided in the other lower idler roller
178
a
so as to balance contact forces between the rollers
178
a
,
178
b
across the passing labels
25
. Such arrangement minimizes skewing action as the labels
25
are fed through the door assembly
160
.
The lower portion
176
b
of the guide rail
176
further includes at least one port
188
for the discharge of the air jet blower
52
upon printed indicia
3
as it passes along the vertical pathway
44
downstream of the ink jet printer head
46
. Although the port
188
is shown at a location below the roller
178
b
, practice of the invention is entirely workable with placement of a port
188
above the roller
178
b
, whether in substitution or in addition to the port
188
shown in FIG.
5
A. The air jet blower
52
is preferably mounted to the backside of the fixed housing frame
162
.
Referring now to
FIGS. 5A and 5B
, as previously mentioned, the label-feed roller assembly
20
also includes a delivery roller assembly
170
, which preferably comprises a fixed guide plate
200
configured to slidingly receive labels
25
after they are directed through the door assembly
160
. The guide plate
200
includes a groove
218
. The delivery roller assembly
170
further comprises a driven roller pin
210
that is rotatably disposed at a lower portion of the guideplate
200
. A groove
218
is formed in the guide plate
200
in vertical alignment with the groove
185
of the lower rail portion
176
a
of the fixed housing
162
.
Preferably, the roller pin
210
includes a first contact roller portion
212
which is preferably vertically disposed below the roller
178
a
of the door assembly
160
. At its opposite end, the roller pin
210
includes a second contact roller portion
215
that is provided with a roller recessed portion
216
. The roller recessed portion
216
is vertically aligned with the groove
218
of the guide plate
200
, such that a contact-free pathway portion
190
is defined by the groove
185
in the lower rail portion
176
a
of the door assembly
160
, the groove
179
b
of the idler roller
178
b
, the groove
218
of the guide plate
200
and the roller recessed portion
216
of the roller pin
210
. Accordingly, there is established a continuation of the contact-free pathway
190
beginning at the proximity of the discharge port
47
of the ink jet gun
46
and extending through both the door assembly
160
(along the groove
185
of the rail portion
176
b
and the groove
179
b
of the idler wheel
178
b
) and the roller delivery assembly
170
(along the groove
218
of the guide plate
200
and the recessed portion of the roller pin
210
) so that the printed indicia
3
on a passing label
25
arrives at the folding station
27
in an unsmeared condition.
Referring now to
FIG. 5C
, the pivotal housing frame
162
includes driven rollers
312
a
and
312
b
which are disposed in opposing relation to the idler rollers
172
a
and
172
b
of the fixed housing frame, respectively, when the pivotal housing frame
164
is closed against the fixed housing frame
162
. Likewise, the pivotal housing frame
164
includes a second lower pair of driven rollers
322
a
and
322
b
which are disposed in opposing relation to the idler rollers
178
a
and
178
b
of the fixed housing frame, respectively, when the pivotal housing frame
164
is closed against the fixed housing frame
162
. Referring now also to
FIG. 6
, preferably, both driven rollers
322
a
and
322
b
include rims
325
a
and
325
b
, respectively, of a slightly lesser width than the widths of the opposing portions
328
of the idler rollers
178
a
and
178
b
. The driven rollers
322
a
and
322
b
include a second recess
330
where the rollers
322
a
and
322
b
receive rails
332
and
334
of the housing frame
164
, respectively. Another middle rail
336
is preferably situated between the rails
332
and
334
. Preferably, the rollers
312
a,b
and
322
a,b
of the pivotal housing frame
164
are driven off the central drive system of the packaging machine
10
as is typically provided in a G. D X-1 or G. D X-500 machine.
Referring to back to
FIG. 4
, the cigarette packaging apparatus
10
preferably includes an arrangement for adjusting the lateral placement of the ribbon of labels
129
and therefore the lateral placement of individual labels
25
relative to the ink jet printer head
46
so that accurate placement can be maintained and machine drift maybe compensated. In particular, the arrangement includes a manually adjustable slider mount
133
at least one, but preferably both of the de-curling assemblies
134
and
136
. A GilmanPrecision Slide available from Russel T. Gilman, Inc. is a preferred, commercial available mount for this application. The arrangement facilitates placement of the printed indicia
3
exactly where desired during start up and to compensate for any drifting during extended machine operations and/or other causes of displacements of the indicia
3
, such as from bobbin changes.
It is to be appreciated that the preferred embodiment of the present invention provides ink jet printing of soft pack labels and the like at a print location
42
sufficiently removed from the folding station
27
such that the printed indicia is given a time to dry before it enters folding operations. The allotted spacing, together with the special handling of the label through the label-feed roller assembly
20
(providing a contact-free portion and symmetry at the rollers to minimize skewing) provides a unique effective manner for applying information upon soft pack cigarette packages that is readily readable without the destruction of product.
Thus, it is provided an apparatus and method for manufacturing cigarette packaging featuring ink jet coding. One skilled in the art will appreciate that the present invention can be practiced by other than the preferred embodiments, which are presented for purposes of illustration and not limitation, and the present invention is limited only by the claims that follow.
Claims
- 1. A cigarette packaging apparatus comprising:a folding station configured to at least partially wrap a label about a pre-arranged bundle of cigarettes; means for repetitively dispensing labels along a pathway leading to said folding station; a first signal generator arranged to generate a signal indicative of a speed of the label along said pathway; a second signal generator adjacent a print location along the aforementioned pathway configured to generate a signal indicative of presence of the label as it passes adjacent said printing location; a first controller which controls said dispensing of said labels and folding operations performed by said folding station; a fluid jet printer head adjacent the print location and a second controller which is in communication with said first controller and which operates said printer head responsive to signals generated by said first and second signal generators so as to controllably apply printed indicia upon a pre-selected portion of said label as it passes said print location; and an arrangement providing a contact-free path portion along which said pre-selected indicia-bearing portion traverses as said label is progressed from said print location to the folding station so that said label arrives at said folding station in an unsmeared condition; wherein said means for repetitively dispensing labels comprises a label-feed roller assembly, said label-feed roller assembly directing said packaging material along said path across said print location, said label-feed roller assembly defines said contact-free path portion downstream of said print location wherealong said applied indicia is maintained in a spaced relation from opposing portions of said label-feed roller assembly; wherein said label-feed roller assembly includes a fixed housing portion, said fixed housing portion including a grooved guide rail along said contact-free path portion; and wherein said label-feed roller assembly includes a grooved roller at a location along said guide rail.
- 2. The cigarette packaging apparatus as claimed in claim 1 further comprising a gas blower adjacent said print location and configured to apply a discharge of gas upon said indicia bearing portion as said bundle is directed along said contact-free path portion.
- 3. The cigarette packing apparatus as claimed in claim 1, wherein said label-feed roller assembly includes a second grooved roller located transversely of said guide rail location along said guide rail.
- 4. The cigarette packing apparatus as claimed in claim 3, wherein said label-feed roller assembly includes a delivery roller assembly downstream of said fixed housing portion, said delivery roller assembly including a groove and a recessed roller pin portion aligned with said grooved guide of said fixed housing portion.
- 5. The cigarette packing apparatus as claimed in claim 3, further comprising a label decurler upstream of said label-feed roller assembly, said label decurler being laterally adjustable in position relative to said label-feed roller assembly.
US Referenced Citations (12)