GB2077569A - Pneumatic ejector device for cigarette rods - Google Patents
Pneumatic ejector device for cigarette rods Download PDFInfo
- Publication number
- GB2077569A GB2077569A GB8113934A GB8113934A GB2077569A GB 2077569 A GB2077569 A GB 2077569A GB 8113934 A GB8113934 A GB 8113934A GB 8113934 A GB8113934 A GB 8113934A GB 2077569 A GB2077569 A GB 2077569A
- Authority
- GB
- United Kingdom
- Prior art keywords
- duct
- cigarette rod
- cigarette
- detector unit
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/14—Machines of the continuous-rod type
- A24C5/31—Machines of the continuous-rod type with special arrangements coming into operation during starting, slowing-down or breakdown of the machine, e.g. for diverting or breaking the continuous rod
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/32—Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
- A24C5/34—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes
Landscapes
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
A pneumatic ejector device is provided for expelling when required cigarette rod lengths from the through duct of a detector unit in which the weight of tobacco filter per unit length of a continuous cigarette rod is sensed. The ejector device comprises an annular pneumatic ejector nozzle located at the inlet of the through duct of the detector unit. The nozzle is fed from an air feeding line, which is adapted to be temporarily connected, through a controllable intercepting means, with a source of air at a relatively high pressure, whereby an air jet is blown from the nozzle, strong enough for expelling from the said through duct of the detector unit and from the adjoining outlet duct, any broken-off cigarette rod lengths which remain therein, owing to incorrect manual insertion of a cigarette rod or accidental stopping of the cigarette-making machine. <IMAGE>
Description
SPECIFICATION
Pneumatic Ejector Device For Cigarettes
In cigarette-making machines, the operation of sensing continuously the weight per unit length, or
specific weight, of the tobacco filler of a cigarette rod
being produced, provides the standard for automati
cally adjusting the said specific weight to the best
constant value on which mainly depends the quality
of the cigarette "draught", and therefore the liking of
the cigarette by a smoker.
Such a continuous sensing of the tobacco filler
specific weight is usually effected during the travel ofthe cigarette rod from the drierthat dries the
glued portion of its tubular paper wrapper, to the
cutter that cuts the cigarette rod into cigarette
lengths.
It is known that for the said sensing operation use
is made of detector units with a through duct in
which the specific weight of the tobacco filler is
sensed, and through which the cigarette rod is
caused to travel from the said drier to the said cutter.
The present invention relates particularly, but in a
non-limiting way, to those detector units in which
radioactive materials are used for sensing the
specific weight of the tobacco filler of a cigarette rod.
The cigarette rod moving into the said through
duct of the detector unit has been just passed under
the drier for drying the glue which sticks togetherthe superposed edges of the paper wrapper wound
round its tobacco filler, so that it is still warm and
wet, and therefore is has the tendency to promote
the forming of condensate water on the inner, cold
surface of said detector unit through duct. Besides
wetting the paper of the cigarette rod, this conden
sate water will also create an obstacle to the running
of the cigarette rod through the detector unit through
duct.
In order to prevent the said condensate water from
being formed, it is already a common practice to
blow low pressure air into the tubular narrow space
between the cigarette rod surface and the inner wall
of the said detector unit through duct.
Besides the mentioned inconvenience deriving
from the formation of condensate water, another
drawback is originated by the fact that cigarette rod
lengths might stop in the through duct ofthe detec
tor unit for example owing to any incorrect manual
insertion of the cigarette rod into the detector unit, or
owing to any accidental stopping ofthe cigarette
making machine to which the said detector unit is
applied.
The present invention aims to obviate the above s mentioned drawbacks, and for this purpose it prop ;oses to associate with the continuous blowing of low
pressure air into the detector unit through duct, also an occasional blowing of air at a higher pressure,
sufficient for producing a temporary air jet which is
adapted for ejecting from the said through duct any
cigarette rod lengths which stopped thereinto,
owing to any irregular operation, or to any discon
tinuous running of the cigarette-making machine.
According to the invention, a high pressure air
duct supplied from a source of air at a definitely higher pressure, is connected to the low pressure air feeding line leading to a nozzle located at the inlet of the detector unit through duct, for blowing air into said duct. In the said high pressure air duct there is arranged a controllable intercepting device, such as a manually or electrically operated valve, which upon control opens for a limited time the way to the nozzle for a temporary airflow, strong enough for expelling from the through duct of the detector unit any cigarette rod lengths which remained stationary in said duct.
The characteristic features of the invention, and the advantages arising therefrom will appear evident from the following detailed description of same, made with reference to the accompanying drawing, schematically showing a detector unit for sensing the weight per unit length, or specific weight, of the tobacco filler of a cigarette rod, and which is equipped with a compressed air, intermittently operated, ejector device according to the invention.
Referring to the drawing, reference numeral 1 designates a detector unit for continuously sensing the weight per unit length, or specific weight, of the tobacco filler of a cigarette rod B during the guided, axial forward movement of this rod B from the drier that dries the glued portion of its tubular paper wrapper, to the cutter th at cuts the rod into cigarette lengths.
In the detector unit 1 the cigarette rod B is caused to travel, with a certain clearance, through the through duct 2 in which the specific weight of its tobacco filler is sensed. At the inlet of duct 2 (relatively to the cigarette rod B advancing direction) an annular nozzle 3 for blowing air into duct 2 is mounted into axial alignment therewith, and low pressure air is supplied from a source (not shown) through the feed line 4,5 andthe delivery conduit 6.
By blowing low pressure air into the detector unit through duct 2, the annular nozzle 3 promotes the forming of a stream through the annulargap between the inner wall of duct 2 and the surface of the cigarette rod B which is travelling through duct 2.
This air stream not only cools the cigarette rod B and prevents any condensate from being formed on the inner wall of said duct 2, but also forms a fluid layer that considerably reduces the sliding friction of the cigarette rod B on the said inner wall of duct 2.
According to the present invention, the same annular nozzle 3 is used, when needed, as a pneumatic ejector for expelling from the through duct 2 in which the specific weight of the tobacco filler is sensed, and from the adjoined outled duct 7 which guides the cigarette rod B to the cutter, any cigarette rod lengths which might have stopped thereinto, owing to any incorrect insertion of rod B into the detector unit, orto any accidental stopping ofthe cigarette-making machine.
In order to use, according to the invention, the said nozzle 3 as a pneumatic ejector, a duct8 is provided, which is connected by one end to duct 5 of the feed line4 (which supplies low pressure cooling airto nozzle 3) and by the other end to duct 9 delivering air at a pressure much higher than the air flowing through the feed line 4, 5, and typically at a pressure in the order of about 2 or 3 Kgs./sq.cm.
Between duct 9 and duct 8 a control means is fitted for intercepting the flow of the high pressure air. In the drawing, this control means is shown in form of a cock 10, provided with a manually operated lever
11.
Thus, whenever cock 10 is manually opened for a limited time, the pneumatic nozzle 3 causes a strong air jet to penetrate into duct 2 so as to expel therefrom and from adjoining duct 7 any cigarette lengths having remained stationary thereinto, owing to any incorrect insertion of a cigarette rod B into the detector unit, or to any accidental stopping of the cigarette making machine.
The present invention provides also for an automatic operation of the ejector nozzle 3. In this case, instead of a cock, the controllable intercepting means 10 consists of an electrically operated valve.
The automation ofthe ejector nozzle 3 is required when the cigarette-making machine is equipped with devices forthe automatic breaking of the cigarette rod at any stopping of the cigarette-making machine, and for the automatic insertion of the cigarette rod into the detector unit, as the said machine is started.
Claims (6)
1. A pneumatic ejector device for expelling cigarette rod lengths from the through duct of the detector unit in which the weight per unit length of the cigarette rod tobacco filler is sensed, the said detector unit being operatively fitted in the path of a cigarette rod from the drier that dries the glued portion of its tubular paper wrapper, to the cutterthat cuts the cigarette rod into cigarette lengths, the said ejector device being characterized by the fact that it comprises an annular pneumatic ejector nozzle located at the inlet of the through duct of the detector unit, relatively to the direction ofthe cigarette rod movementtherethrough, the said nozzle being fed from an airfeeding line, which is adapted for being temporarily connected, through a controllable intercepting means, with a source of air at a relatively high pressure, whereby an air jet is blown from the nozzle, strong enough for expelling from the said through duct of the detector unit and from the adjoining outlet duct, any cigarette rod lengths which remained stationary therein, owing to any incorrect manual insertion of a cigarette rod into the detector unit, orto any breaking ofthe cigarette rod, due to any accidental stopping of the cigarettemaking machine.
2. The pneumatic ejector device according to
Claim 1, characterized by the fact that the said air feeding line to the ejector nozzle conveys also an airflow from a low pressure air source into the through duct of the detector unit, so that during the normal operation of the cigarette-making machine, low pressure air is blown continuously thereinto, in order to prevent any condensate from being formed on the inner wall of said through duct, and to maintain between the cigarette rod surface and the inner wall ofthe through duct of the detector unit an air layer which facilitates the travelling of the cigarette rod through the said duct.
3. The ejector device according to the preceding
Claims, characterized by the fact that the said source of air at a relatively high pressure, supplies air at a pressure in the order of about 2 or 3 Kgs./sq.cm.
4. The ejector device according to the preceding
Claims, characterized by the fact that the said controllable intercepting means is a manually operatable valve.
5. The ejector device according to Claims 1 ta;3, characterized by the fact that the said controllable intercepting means comprises an electrically operated valve.
6. A pneumatic nozzle ejector device for expelling cigarette rod lengths from the detector units for sensing the weight per unit length of cigarette rods, the whole or in part substantially as shown and as described.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1518580U IT8015185V0 (en) | 1980-05-09 | 1980-05-09 | PNEUMATIC EJECT DEVICE OF CIGARETTE BACO CUTS FROM THE MEASURING HEADS OF THE BACO MASS |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2077569A true GB2077569A (en) | 1981-12-23 |
GB2077569B GB2077569B (en) | 1983-05-25 |
Family
ID=11147090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8113934A Expired GB2077569B (en) | 1980-05-09 | 1981-05-07 | Pneumatic ejector device for cigarette rods |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE3118296A1 (en) |
FR (1) | FR2484794B1 (en) |
GB (1) | GB2077569B (en) |
IT (1) | IT8015185V0 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3424840A1 (en) * | 1984-07-03 | 1986-01-16 | B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg | Apparatus for passing a cigarette rod between two processing stations |
DE102012105121A1 (en) * | 2012-06-13 | 2013-12-19 | Hauni Maschinenbau Ag | Measuring module and measuring arrangement for measuring extrudates and / or strand sections produced in extrusion machines of the tobacco-processing industry, as well as a stranding machine with such measuring modules or such a measuring arrangement |
DE102012102337A1 (en) * | 2012-03-20 | 2013-10-10 | Hauni Maschinenbau Ag | Measuring arrangement, designed and set up for measuring strands and / or strand sections produced in strand units of the tobacco-processing industry as well as strand unit with such a measuring arrangement and method for measuring |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1208584A (en) * | 1957-07-30 | 1960-02-24 | Molins Machine Co Inc | Improvements to radiation gauges |
US3829695A (en) * | 1971-08-26 | 1974-08-13 | Molins Ltd | Rod guide assembly for continuous rod making machines |
GB1525432A (en) * | 1976-03-05 | 1978-09-20 | Measurex Corp | Measuring the weight of cigarette rod |
-
1980
- 1980-05-09 IT IT1518580U patent/IT8015185V0/en unknown
-
1981
- 1981-05-07 GB GB8113934A patent/GB2077569B/en not_active Expired
- 1981-05-08 DE DE19813118296 patent/DE3118296A1/en not_active Withdrawn
- 1981-05-08 FR FR8109195A patent/FR2484794B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2484794B1 (en) | 1985-08-09 |
IT8015185V0 (en) | 1980-05-09 |
FR2484794A1 (en) | 1981-12-24 |
GB2077569B (en) | 1983-05-25 |
DE3118296A1 (en) | 1982-03-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930507 |