US20060236493A1 - Machine for processing articles, control device, and diagnostic method applied to such a machine - Google Patents
Machine for processing articles, control device, and diagnostic method applied to such a machine Download PDFInfo
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- US20060236493A1 US20060236493A1 US11/396,231 US39623106A US2006236493A1 US 20060236493 A1 US20060236493 A1 US 20060236493A1 US 39623106 A US39623106 A US 39623106A US 2006236493 A1 US2006236493 A1 US 2006236493A1
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- data item
- seat
- machine
- comparison data
- recording signal
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- 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
- A24C5/33—Catching or ordering devices
- A24C5/336—Turning means
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- 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
- A24C5/322—Transporting cigarettes during manufacturing
- A24C5/328—Controlling means
Definitions
- the present invention relates to a machine for processing articles, a control device, and a diagnostic method applied to such a machine.
- the present invention relates to a machine for processing articles and comprising a transfer device, which feeds the articles along a feed path from an input station to an output station, and comprises at least one seat and at least one operating component for moving the seat.
- the seat picks up a respective article at the input station, releases the article at the output station, and returns to the input station along a return path.
- FIG. 1 shows a schematic front view of a machine for processing articles, in accordance with the present invention
- FIG. 2 shows a detail of the FIG. 1 machine in a first operating position
- FIG. 3 shows the FIG. 2 detail in a further operating position
- FIG. 4 shows a reference curve and a recorded signal test curve
- the x axis shows the machine angles
- the y axis the intensity of the signal
- FIG. 5 shows a time graph of test data and/or comparison data
- FIG. 6 shows a schematic view in perspective of a further embodiment of the FIG. 1 machine
- FIG. 7 shows a larger-scale detail of FIG. 6 ;
- FIG. 8 shows a reference signal test curve
- the x axis shows the machine angles
- the y axis the intensity of the signal
- FIG. 9 shows a recorded signal test curve
- the x axis shows the machine angles
- the y axis the intensity of the signal
- FIGS. 10-12 show a detail of the FIG. 6 machine in successive operating positions.
- Number 1 in FIG. 1 indicates as a whole a machine for processing cylindrical tobacco articles, in particular cigarettes 2 .
- the machine comprises a feed conveyor 3 for feeding cigarettes 2 to an input station 4 ; a transfer device 5 for transferring cigarettes 2 from input station 4 to an output station 6 along a feed path P 1 ; and a conveyor wheel 7 for receiving cigarettes 2 from transfer device 5 at output station 6 .
- Transfer device 5 comprises a conveyor roller 8 , which rotates about a respective horizontal axis of rotation 9 and has a number of peripheral housings 10 equally spaced about axis 9 and each comprising two elongated, substantially coaxial seats 11 and 11 ′, each having an externally concave surface with suction nozzles.
- Roller 8 comprises an operating unit 12 (shown partly) for moving seats 11 and 11 ′ longitudinally and parallel to axis 9 , and which comprises a number of rods 12 ′.
- Each rod 12 ′ supports a respective seat 11 and 11 ′, and slides longitudinally in a direction parallel to axis 9 .
- transfer device 5 is normally used to part two cigarettes 2 just formed by transversely cutting a double cigarette (not shown).
- a housing 10 a comprising two seats 11 a and 11 ′ a
- the two seats 11 a and 11 ′ a receive respective cigarettes 2 positioned with the respective filter ends facing.
- roller 8 rotates about axis 9 and housing 10 a travels along path P 1
- seats 11 a and 11 ′ a are parted axially and parallel to axis 9 ( FIG. 2 ) until they reach output station 6 , where cigarettes 2 are released onto conveyor wheel 7 .
- housing 10 a returns to input station 4 along a return path P 2
- the two seats 11 a and 11 a are brought back together again ( FIG. 3 ).
- Machine 1 also comprises a control device 13 for ensuring seats 11 , 11 ′ are positioned correctly along feed and return paths P 1 and P 2 .
- Control device 13 comprises two proximity sensors 14 , 14 ′, each for emitting a recording signal S relative to the position of a respective seat 11 , 11 ′ of each housing 10 ; and a computer 15 connected to sensors 14 , 14 ′ and for comparing recording signal S with a reference data item DR to obtain at least one comparison data item DC from which to determine a fault on operating unit 12 .
- fault is intended to mean an operating condition which is already causing production problems, e.g. a relatively high percentage of reject cigarettes, or a condition which, if not corrected, would presumably result in production problems.
- reference data item DR may comprise one or more elements, e.g. may be a single value or a matrix of values.
- comparison data item DC may comprise one or more elements, e.g. may be a single value or a matrix of values.
- Computer 15 may acquire a recorded data item as a function of recording signal S and subtract the recorded data item from a reference data item DR value to obtain a comparison data item DC value; and, in the event the comparison data item DC value exceeds a given threshold value, control device 13 informs the user of the fault by means of acoustic and/or visual signals and/or stops machine 1 .
- proximity sensor 14 emits a signal Sa every time seat 11 a travels past sensor 14 .
- Signal Sa has a peak PR indicating the minimum distance between seat 11 a and proximity sensor 14 , and which has a respective recorded height h, and a minimum machine angle AM corresponding to the instant in which peak PR is recorded.
- Computer 15 preferably processes signal Sa from sensor 14 to obtain a response curve C 1 (shown in FIG. 4 ) indicating distances between seat 11 a and sensor 14 as a function of machine angles of transfer device 5 .
- curve C 1 is substantially W-shaped, and has peak PR and a groove GR, which indicates the maximum distance between the seat and the sensor, and which has a respective recorded height h′.
- machine angle is intended to mean a given point in an operating cycle at which transfer device 5 assumes a given operating configuration typical of that point. If transfer device 5 is operated at constant speed, the same machine angles of successive operating cycles follow one another at constant time intervals of a duration equal to the duration of one operating cycle.
- peak PR is compared with reference data item DR to obtain comparison data item DC.
- recorded height h may be compared with reference data item DR to determine the correct radial position of seat 11 a with respect to axis 9 ; and minimum machine angle AM may be compared with reference data item DR to determine the correct angular position of seat 11 a with respect to axis 9 .
- reference data item DR comprises a reference curve C 2 ; and computer 15 compares response curve C 1 with reference curve C 2 to obtain comparison data item DC comprising information relating to the angular and radial position of seat 11 a with respect to axis 9 .
- computer 15 determines a neighbourhood of peak PR having a given area A, and identifies a mid-line M of area A (i.e. a line dividing area A into two portions of equal area) having a constant minimum machine angle T 1 , which is compared with reference data item DR (e.g. the machine angle of a mid-line of curve C 2 ) to obtain comparison data item DC comprising information relative to the angular position of seat 11 a with respect to axis 9 .
- reference data item DR e.g. the machine angle of a mid-line of curve C 2
- computer 15 determines the recorded height h′ of groove GR; and recorded height h′ is compared with reference data item DR to obtain comparison data item DC comprising information relative to the radial position of seat 11 a with respect to axis 9 .
- curve C 1 , peak PR, groove GR, machine angle AM, mid-line M, machine angle T 1 , recorded height h and/or recorded height h′ are calculated by computer 15 on the basis of the mean of a number of signals Sa emitted by sensor 14 during successive operating cycles.
- computer 15 compares curve C 1 , peak PR, groove GR, machine angle AM, mid-line M, machine angle T 1 , recorded height h and/or recorded height h, with reference data item DR to obtain a number of comparison data items DC, each relating to a respective operating cycle; and computer 15 determines and employs a mean of said comparison data items DC to identify a possible machine fault.
- one or more test curves are determined by which to extrapolate the time pattern of at least one of the following data items: curve C 1 , peak PR, groove GR, machine angle AM, mid-line M, machine angle T 1 , recorded height h, recorded height h′ (i.e. the recorded data) and/or comparison data item DC.
- Maintenance work is programmed as a function of the instants in which one or more test curves intersect respective reference curves of reference data item DR. More specifically, maintenance may be programmed at the exact instant in which a test curve intersects the respective reference curve, or at a given time interval before or after the instant in which a test curve intersects the respective reference curve.
- FIG. 5 shows a test curve, in which time is shown along the y axis, and the x axis shows at least one of the following data items: curve C 1 , peak PR, groove GR, machine angle AM, mid-line M, machine angle T 1 , recorded height h, recorded height h′ and/or comparison data item DC.
- K and R in FIG. 5 indicate a test curve and reference curve respectively.
- test curves K are preferably linear, and reference curves R preferably each define a respective constant value.
- control device 13 provides for programming maintenance to correct the fault in such a way as to prolong operation of machine 1 as long as possible before the fault can pose production problems on transfer device 5 .
- this is achieved in a particularly advantageous manner by determining the time pattern of recording signals S, comparison data items DC and/or mean values thereof.
- Computer 15 processes the signal from sensor 14 ′ in the same way as recording signal Sa from sensor 14 , to preferably obtain at least one of the following recorded data items: curve C 1 , peak PR, groove GR, machine angle AM, mid-line M, machine angle T 1 , recorded height h, recorded height h′.
- At least one recorded data item C 1 , PR, GR, AM, M, T 1 , h and h′ relative to a signal emitted by sensor 14 ′ forms part of reference data item DR.
- at least one of recorded data items C 1 , PR, GR, AM, M, T 1 , h and h′ relative to the signal emitted by sensor 14 is therefore compared with at least one of the corresponding recorded data items C 1 , PR, GR, AM, M, T 1 , h and h′ relative to the signal emitted by sensor 14 ′, in addition to or instead of given data items forming part of reference data item DR.
- given data items is intended to mean data items relative to an ideal position of seat 11 a with respect to axis 9 .
- FIG. 6 shows a further embodiment of machine 1 for processing cigarettes 2 , and in which any parts similar to those in FIGS. 1, 2 and 3 are indicated using the same reference numbers.
- Machine 1 in FIG. 6 mainly differs from machine 1 in FIG. 1 as regards the following.
- Seats 11 and 11 ′ are not movable axially and parallel to axis 9 with respect to one another. More specifically, seats 11 ′ are connected integrally to conveyor roller 8 ; and operating unit 12 moves seats 11 radially with respect to axis 9 , and rotates seats 11 about respective axes 16 substantially crosswise to axis 9 .
- Transfer device 5 in FIG. 6 is normally used to re-orient some of cigarettes 2 , so that the filters of all of cigarettes 2 are located on the same side.
- a housing 10 comprising two seats 11 and 11 ′
- the two seats 11 and 11 ′ are substantially coaxial with each other, and each receive a respective cigarette 2 .
- seat 11 moves radially with respect to and away from axis 9 , and then rotates about axis 16 into a position parallel to respective seat 11 ′.
- cigarettes 2 arranged in twos with their filters side by side in seats 11 and 11 ′, are unloaded onto conveyor wheel 7 .
- seat 11 repeats in reverse the same movements performed along feed path P 1 , so that it is once more positioned coaxially with seat 11 ′ by the time housing 10 reaches input station 4 .
- Machine 1 in FIG. 6 also comprises a control device 13 ′ substantially identical, structurally and functionally, to control device 13 .
- Control device 13 ′ differs from control device 13 by having only one proximity sensor 14 located along return path P 2 at input station 4 . Location of sensor 14 at input station 4 provides for determining, to a relatively high degree of precision, whether seat 11 is restored to a position substantially coaxial with seat 11 ′.
- sensor 14 emits recording signal S as a seat 11 travels past sensor 14 ; signal S is processed by computer 15 to obtain curve C 1 ; and, at this point, the machine angle of peak PR and the value of height h of peak PR are obtained and compared with reference data item DR. More specifically, the difference between the machine angle of peak PR and a reference machine angle is determined; and, when the difference between the machine angle of peak PR and the reference machine angle is above (or below) a given threshold value, control device 13 ′ emits an error signal indicating a fault relative to incorrect rotation of seat 11 about axis 16 .
- control device 13 ′ emits an error signal indicating a fault relative to incorrect radial movement of seat 11 .
- FIG. 8 shows a reference curve C 3 relative to a substantially fault-free device.
- FIG. 9 shows curve C 1 for various seats 11 . As shown clearly by a comparison of curves C 1 and C 3 , the height h of peak PR relative to seat 11 is considerably greater than that of the corresponding peak in curve C 3 . In which case, device 13 ′ therefore emits an error signal indicating a fault relative to incorrect radial movement of seat 11 .
- FIGS. 10-12 show a detail of machine 1 in various operating positions. More specifically, FIG. 10 shows the relative seat 11 -sensor 14 position when peak PR is recorded; FIG. 11 shows the relative seat 11 -sensor 14 position when groove GR is recorded; and FIG. 12 shows the relative seat 11 -sensor 14 position when a peak PS smaller in height than peak PR is recorded.
Abstract
A machine for processing cigarettes, a control device, and a diagnostic method applied to such a machine; the machine has a number of housings oriented crosswise to a feed path and each having at least two respective elongated seats; during each operating cycle, each seat picks up a respective cigarette at an input station, releases the cigarette at an output station, and returns to the input station along a return path; a proximity sensor determines the position of the seats, and emits a recording signal which is processed and compared with reference data to determine a possible fault.
Description
- The present invention relates to a machine for processing articles, a control device, and a diagnostic method applied to such a machine.
- More specifically, the present invention relates to a machine for processing articles and comprising a transfer device, which feeds the articles along a feed path from an input station to an output station, and comprises at least one seat and at least one operating component for moving the seat. During each operating cycle, the seat picks up a respective article at the input station, releases the article at the output station, and returns to the input station along a return path.
- In known machines of the above type, it is relatively essential that the seat assume a precise position at the input and output stations to prevent the article from being damaged or even lost as it is picked up or released by the seat.
- At present, faults on the transfer device resulting in incorrect positioning of the seats at the input and/or output station are extremely difficult and slow to determine. This, combined with the high operating speeds of modern machines for processing articles, therefore results in a relatively large number of rejects downstream from the transfer device and, consequently, in increased production costs.
- It is an object of the present invention to provide a machine for processing articles and a diagnostic method, which are designed to eliminate the aforementioned drawbacks, and which, in particular, are cheap and easy to implement.
- According to the present invention, there is provided a diagnostic method as claimed in the attached Claims.
- According to the present invention, there is provided a machine for processing articles, as claimed in the attached Claims.
- According to the present invention, there is provided a control device as claimed in the attached Claims.
- A number of non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings, in which:
-
FIG. 1 shows a schematic front view of a machine for processing articles, in accordance with the present invention; -
FIG. 2 shows a detail of theFIG. 1 machine in a first operating position; -
FIG. 3 shows theFIG. 2 detail in a further operating position; -
FIG. 4 shows a reference curve and a recorded signal test curve; the x axis shows the machine angles, and the y axis the intensity of the signal; -
FIG. 5 shows a time graph of test data and/or comparison data; -
FIG. 6 shows a schematic view in perspective of a further embodiment of theFIG. 1 machine; -
FIG. 7 shows a larger-scale detail ofFIG. 6 ; -
FIG. 8 shows a reference signal test curve; the x axis shows the machine angles, and the y axis the intensity of the signal; -
FIG. 9 shows a recorded signal test curve; the x axis shows the machine angles, and the y axis the intensity of the signal; -
FIGS. 10-12 show a detail of theFIG. 6 machine in successive operating positions. - Number 1 in
FIG. 1 indicates as a whole a machine for processing cylindrical tobacco articles, inparticular cigarettes 2. The machine comprises afeed conveyor 3 forfeeding cigarettes 2 to aninput station 4; atransfer device 5 for transferringcigarettes 2 frominput station 4 to anoutput station 6 along a feed path P1; and aconveyor wheel 7 for receivingcigarettes 2 fromtransfer device 5 atoutput station 6. -
Transfer device 5 comprises aconveyor roller 8, which rotates about a respective horizontal axis ofrotation 9 and has a number ofperipheral housings 10 equally spaced aboutaxis 9 and each comprising two elongated, substantiallycoaxial seats Roller 8 comprises an operating unit 12 (shown partly) for movingseats axis 9, and which comprises a number ofrods 12′. Eachrod 12′ supports arespective seat axis 9. - In the tobacco industry,
transfer device 5 is normally used to part twocigarettes 2 just formed by transversely cutting a double cigarette (not shown). - In actual use, when a
housing 10 a, comprising twoseats input station 4, the twoseats respective cigarettes 2 positioned with the respective filter ends facing. At this point, asroller 8 rotates aboutaxis 9 and housing 10 a travels along path P1,seats FIG. 2 ) until they reachoutput station 6, wherecigarettes 2 are released ontoconveyor wheel 7. Ashousing 10 a returns toinput station 4 along a return path P2, the twoseats FIG. 3 ). - Machine 1 also comprises a
control device 13 for ensuringseats Control device 13 comprises twoproximity sensors respective seat housing 10; and acomputer 15 connected tosensors operating unit 12. - In the present description, the term “fault” is intended to mean an operating condition which is already causing production problems, e.g. a relatively high percentage of reject cigarettes, or a condition which, if not corrected, would presumably result in production problems.
- As described herein, reference data item DR may comprise one or more elements, e.g. may be a single value or a matrix of values. Similarly, comparison data item DC may comprise one or more elements, e.g. may be a single value or a matrix of values.
-
Computer 15 may acquire a recorded data item as a function of recording signal S and subtract the recorded data item from a reference data item DR value to obtain a comparison data item DC value; and, in the event the comparison data item DC value exceeds a given threshold value,control device 13 informs the user of the fault by means of acoustic and/or visual signals and/or stops machine 1. - With reference to one
seat 11 a, in actual use,proximity sensor 14 emits a signal Sa everytime seat 11 a travels pastsensor 14. Signal Sa has a peak PR indicating the minimum distance betweenseat 11 a andproximity sensor 14, and which has a respective recorded height h, and a minimum machine angle AM corresponding to the instant in which peak PR is recorded.Computer 15 preferably processes signal Sa fromsensor 14 to obtain a response curve C1 (shown inFIG. 4 ) indicating distances betweenseat 11 a andsensor 14 as a function of machine angles oftransfer device 5. - More specifically, given the externally concave surface of
seat 11 a, curve C1 is substantially W-shaped, and has peak PR and a groove GR, which indicates the maximum distance between the seat and the sensor, and which has a respective recorded height h′. - In the present description, the term “machine angle” is intended to mean a given point in an operating cycle at which
transfer device 5 assumes a given operating configuration typical of that point. Iftransfer device 5 is operated at constant speed, the same machine angles of successive operating cycles follow one another at constant time intervals of a duration equal to the duration of one operating cycle. - In some embodiments, peak PR is compared with reference data item DR to obtain comparison data item DC. In particular, recorded height h may be compared with reference data item DR to determine the correct radial position of
seat 11 a with respect toaxis 9; and minimum machine angle AM may be compared with reference data item DR to determine the correct angular position ofseat 11 a with respect toaxis 9. - Alternatively or in addition, reference data item DR comprises a reference curve C2; and
computer 15 compares response curve C1 with reference curve C2 to obtain comparison data item DC comprising information relating to the angular and radial position ofseat 11 a with respect toaxis 9. - Alternatively or in addition,
computer 15 determines a neighbourhood of peak PR having a given area A, and identifies a mid-line M of area A (i.e. a line dividing area A into two portions of equal area) having a constant minimum machine angle T1, which is compared with reference data item DR (e.g. the machine angle of a mid-line of curve C2) to obtain comparison data item DC comprising information relative to the angular position ofseat 11 a with respect toaxis 9. - Alternatively or in addition,
computer 15 determines the recorded height h′ of groove GR; and recorded height h′ is compared with reference data item DR to obtain comparison data item DC comprising information relative to the radial position ofseat 11 a with respect toaxis 9. - In a further embodiment, alternatively or in addition to the above, curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h and/or recorded height h′ are calculated by
computer 15 on the basis of the mean of a number of signals Sa emitted bysensor 14 during successive operating cycles. - It should be pointed out that, in the present description, the operations referred to as being performed by
computer 15 on recording signals S (e.g. comparisons, mean calculations, and time patterns) are intended as being performed directly on recording signals S or on the processing (acquired data) of recording signals S. - Alternatively or in addition, during each operating cycle,
computer 15 compares curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h and/or recorded height h, with reference data item DR to obtain a number of comparison data items DC, each relating to a respective operating cycle; andcomputer 15 determines and employs a mean of said comparison data items DC to identify a possible machine fault. - In a further embodiment, in addition to or instead of the above embodiments, one or more test curves are determined by which to extrapolate the time pattern of at least one of the following data items: curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h, recorded height h′ (i.e. the recorded data) and/or comparison data item DC. Maintenance work is programmed as a function of the instants in which one or more test curves intersect respective reference curves of reference data item DR. More specifically, maintenance may be programmed at the exact instant in which a test curve intersects the respective reference curve, or at a given time interval before or after the instant in which a test curve intersects the respective reference curve.
- Purely by way of example,
FIG. 5 shows a test curve, in which time is shown along the y axis, and the x axis shows at least one of the following data items: curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h, recorded height h′ and/or comparison data item DC. K and R inFIG. 5 indicate a test curve and reference curve respectively. - As shown in
FIG. 5 , test curves K are preferably linear, and reference curves R preferably each define a respective constant value. - By comparing at least one of recorded data items C1, PR, GR, AM, M, T1, h and h′ with reference data item DR and so determining comparison data item DC, any incorrect positioning of
seat 11 a along paths P1 and P2, and therefore at input andoutput stations - It should be pointed out that the particular combination of component parts of
control device 13 provides for programming maintenance to correct the fault in such a way as to prolong operation of machine 1 as long as possible before the fault can pose production problems ontransfer device 5. - In particular, this is achieved in a particularly advantageous manner by determining the time pattern of recording signals S, comparison data items DC and/or mean values thereof.
-
Computer 15 processes the signal fromsensor 14′ in the same way as recording signal Sa fromsensor 14, to preferably obtain at least one of the following recorded data items: curve C1, peak PR, groove GR, machine angle AM, mid-line M, machine angle T1, recorded height h, recorded height h′. - In further embodiments, in addition to or instead of the above embodiments, at least one recorded data item C1, PR, GR, AM, M, T1, h and h′ relative to a signal emitted by
sensor 14′ forms part of reference data item DR. In which case, at least one of recorded data items C1, PR, GR, AM, M, T1, h and h′ relative to the signal emitted bysensor 14 is therefore compared with at least one of the corresponding recorded data items C1, PR, GR, AM, M, T1, h and h′ relative to the signal emitted bysensor 14′, in addition to or instead of given data items forming part of reference data item DR. - The term “given data items” is intended to mean data items relative to an ideal position of
seat 11 a with respect toaxis 9. - In this way, a double check is made of the correct position of
seat 11 a: with respect to its own ideal position, and with respect to the position ofseat 11′a. In this connection, it is important to stress that, forcigarettes 2 to be transferred correctly atinput station 4 andoutput station 6, seats 11 a and 11′a must be positioned correctly both with respect to each other and with respect to their ideal positions. -
FIG. 6 shows a further embodiment of machine 1 for processingcigarettes 2, and in which any parts similar to those inFIGS. 1, 2 and 3 are indicated using the same reference numbers. - Machine 1 in
FIG. 6 mainly differs from machine 1 inFIG. 1 as regards the following. -
Seats axis 9 with respect to one another. More specifically, seats 11′ are connected integrally toconveyor roller 8; andoperating unit 12 movesseats 11 radially with respect toaxis 9, and rotatesseats 11 aboutrespective axes 16 substantially crosswise toaxis 9. -
Transfer device 5 inFIG. 6 is normally used to re-orient some ofcigarettes 2, so that the filters of all ofcigarettes 2 are located on the same side. - In actual use, when a
housing 10, comprising twoseats input station 4, the twoseats respective cigarette 2. At this point, asroller 8 rotates aboutaxis 9 andhousing 10 travels along a feed path P1,seat 11 moves radially with respect to and away fromaxis 9, and then rotates aboutaxis 16 into a position parallel torespective seat 11′. Atoutput station 6,cigarettes 2, arranged in twos with their filters side by side inseats conveyor wheel 7. Ashousing 10 returns to inputstation 4 along a return path P2,seat 11 repeats in reverse the same movements performed along feed path P1, so that it is once more positioned coaxially withseat 11′ by thetime housing 10 reachesinput station 4. - Machine 1 in
FIG. 6 also comprises acontrol device 13′ substantially identical, structurally and functionally, to controldevice 13. -
Control device 13′ differs fromcontrol device 13 by having only oneproximity sensor 14 located along return path P2 atinput station 4. Location ofsensor 14 atinput station 4 provides for determining, to a relatively high degree of precision, whetherseat 11 is restored to a position substantially coaxial withseat 11′. - In a particularly preferred embodiment, in actual use,
sensor 14 emits recording signal S as aseat 11 travelspast sensor 14; signal S is processed bycomputer 15 to obtain curve C1; and, at this point, the machine angle of peak PR and the value of height h of peak PR are obtained and compared with reference data item DR. More specifically, the difference between the machine angle of peak PR and a reference machine angle is determined; and, when the difference between the machine angle of peak PR and the reference machine angle is above (or below) a given threshold value,control device 13′ emits an error signal indicating a fault relative to incorrect rotation ofseat 11 aboutaxis 16. Similarly,computer 15 subtracts the value of height h of peak PR from a reference height value; and, when the difference between the value of height h of peak PR and the reference height value is above (or below) a given threshold value,control device 13′ emits an error signal indicating a fault relative to incorrect radial movement ofseat 11. -
FIG. 8 shows a reference curve C3 relative to a substantially fault-free device.FIG. 9 shows curve C1 forvarious seats 11. As shown clearly by a comparison of curves C1 and C3, the height h of peak PR relative toseat 11 is considerably greater than that of the corresponding peak in curve C3. In which case,device 13′ therefore emits an error signal indicating a fault relative to incorrect radial movement ofseat 11. - For a clearer understanding of the operation of
control device 13,FIGS. 10-12 show a detail of machine 1 in various operating positions. More specifically,FIG. 10 shows the relative seat 11-sensor 14 position when peak PR is recorded;FIG. 11 shows the relative seat 11-sensor 14 position when groove GR is recorded; andFIG. 12 shows the relative seat 11-sensor 14 position when a peak PS smaller in height than peak PR is recorded.
Claims (38)
1) A diagnostic method for operating components (12) of a machine for processing substantially cylindrical tobacco articles (2); the machine (1) comprising a transfer device (5), which feeds the articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises a number of housings (10, 10 a) oriented crosswise to the feed path and each having at least two respective elongated seats (11, 11′, 11 a, 11′a); during each operating cycle, each seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station (4) along a return path (P2); the machine (1) comprising at least one operating component (12) for moving two seats (11, 11′, 11 a, 11′a) of a respective housing (10 a) with respect to each other as the seats (11, 11′, 11 a, 11′a) travel along the feed path (P1) and/or the return path (P2); and the method being characterized by comprising a recording step, during which at least one proximity sensor (14, 14′) emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) of said housing (10 a) with respect to at least one reference position; a comparing step to compare the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC); and an analysis step to determine at least one fault of the operating component (12) as a function of the comparison data item (DC).
2) A method as claimed in claim 1 , wherein the recording step is repeated a number of times to determine a number of recording signals (S, Sa) relative to the position of the seat (11, 11′, 11 a, 11′a); the comparing step comprising calculating a mean of the recording signals (S, Sa) and comparing the mean of the recording signals with the reference data item (DR) to obtain the comparison data item (DC).
3) A method as claimed in claim 1 , wherein the recording step is repeated a number of times to determine a number of recording signals (S, Sa) relative to the position of the seat (11, 11′, 11 a, 11′a); the comparing step being repeated a number of times to obtain a number of comparison data items (DC); a mean of the comparison data items (DC) being calculated during the analysis step; and the fault of the operating component (12) being determined as a function of the mean of the comparison data items (DC).
4) A method as claimed in claim 1 , wherein a number of comparison data items (DC) are obtained over time; a time pattern of the comparison data items (DC) or of the means of the comparison data items (DC) being determined; and the method comprising programming maintenance to correct said fault as a function of the time pattern of the comparison data items (DC) or of the means of the comparison data items (DC).
5) A method as claimed in claim 4 , wherein a test curve (K) is determined by which to extrapolate the time pattern of the comparison data items (DC) or of the means of the comparison data items (DC); and the method comprising programming maintenance as a function of the instant in which the test curve (K) intersects a first reference curve (R).
6) A method as claimed in claim 1 , wherein a number of recording signals (S, Sa) are recorded over time; a time pattern of the recording signals (S, Sa) or of the means of the recording signals (S, Sa) being determined; and the method comprising programming maintenance to correct said fault as a function of the time pattern of the recording signals (S, Sa) or of the means of the recording signals.
7) A method as claimed in claim 6 , wherein a test curve (K) is determined by which to extrapolate the time pattern of the recording signals (S, Sa) or of the means of the recording signals (S, Sa); and the method comprising programming maintenance as a function of the instant in which the test curve (K) intersects a first reference curve (R).
8) A method as claimed in claim 5 , wherein the reference curve (R) is substantially constant.
9) A method as claimed in claim 1 , wherein, during the comparing step, the recording signal (S, Sa) is processed to obtain a response curve (C1) indicating distances between the seat (11, 11′, 11 a, 11 a) and the proximity sensor (14, 14′) as a function of machine angles of the transfer device (5); the response curve (C1) being compared with the reference data item (DR) to obtain the comparison data item (DC).
10) A method as claimed in claim 9 , wherein the reference data item (DR) comprises a reference curve (C2; C3); the response curve (C1) being compared with the reference curve (C2; C3) to obtain the comparison data item (DC).
11) A method as claimed in claim 9 , wherein the response curve (C1) has a peak (PR) indicating the minimum distance between the seat (11, 11′, 11 a, 11 a) and the proximity sensor (14, 14′); a neighbourhood of the peak (PR), having a respective area (A), being determined during the comparing step; a mid-line (M), of the area (A) of the neighbourhood of the peak (PR), having a recorded machine angle (AM) being calculated; and the reference data item (DR) being compared with the recorded machine angle (AM) to obtain the comparison data item (DC).
12) A method as claimed in claim 9 , wherein the response curve has a groove (GR) indicating the maximum distance between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′), and which has a recorded groove (GR) height (h′); the recorded groove (GR) height (h′) being compared with the reference data item (DR) to obtain the comparison data item (DC).
13) A method as claimed in claim 9 , wherein the seat (11, 11′, 11 a, 11′a) has an externally concave surface; the response curve (C1) being substantially W-shaped.
14) A method as claimed in claim 1 , wherein the recording signal has a peak (PR) indicating the minimum distance between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′); during the comparing step, the peak (PR) being compared with the reference data item (DR) to obtain the comparison data item (DC).
15) A method as claimed in claim 14 , wherein the peak is recorded at a minimum machine angle (T1); during the comparing step, the minimum machine angle (T1) being compared with the reference data item (DR) to obtain the comparison data item (DC).
16) A method as claimed in claim 14 , wherein the peak (PR) has a recorded peak height (h); and the recorded peak (PR) height (h) is compared with the reference data item (DR) to obtain the comparison data item (DC).
17) A method as claimed in claim 1 , wherein, during the comparing step, the recording signal (S, Sa) is processed to obtain a response curve (C1) indicating distances between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′) as a function of machine angles of the transfer device (5); the response curve (C1) having different heights (h, h′) for different machine angles; at least one height (h, h′) of the response curve (C1) being compared with the reference data item (DR) to obtain a comparison data item (DC) relative to the distance between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′); and at least one machine angle of the response curve (C1) being compared with the reference data item (DR) to obtain a comparison data item (DC) indicating the position of the seat (11, 11′, 11 a, 11′a) along the feed and/or return path (P1, P2).
18) A method as claimed in claim 1 , wherein the transfer device (5) comprises a conveyor roller (8) having a respective axis (9) of rotation; the seats (11, 11′, 11 a, 11′a) being located on the periphery of the conveyor roller (8) and substantially parallel to the axis (9) of rotation.
19) A method as claimed in claim 18 , wherein said height (h, h′) of the response curve (C1) is compared with the reference data item (DR) to obtain a comparison data item (DC) relative to a radial position of the seat (11, 11′, 11 a, 11′a) with respect to the axis (9) of rotation; the machine angle of the response curve (C1) being compared with the reference data item (DR) to obtain a comparison data item (DC) indicating the angular position of the seat (11, 11′, 11 a, 11′a) with respect to the axis (9) of rotation.
20) A method as claimed in claim 1 , wherein the two seats (11, 11′, 11 a, 11′a) of said housing (10 a) are maintained substantially coaxial with each other along the feed path (P1) and the return path (P2); the operating component (12) moving the two seats (11, 11′, 11 a, 11′a) of the housing (10 a) axially with respect to each other.
21) A method as claimed in claim 1 , wherein, along the feed path (P1) and/or the return path (P2), said operating component (12) rotates and moves said seat (11, 11′, 11 a, 11′a) transversely.
22) A method as claimed in claim 18 , wherein, along the feed path (P1) and/or the return path (P2), said operating component (12) rotates said seat (11, 11′, 11 a, 11 a) about an axis (16) crosswise to the axis (9) of rotation, and moves said seat (11, 11′, 11 a, 11′a) substantially radially with respect to the axis (9) of rotation.
23) A method as claimed in claim 1 , wherein the proximity sensor (14, 14′) is located along the return path (P2).
24) A method as claimed in claim 23 , wherein the proximity sensor (14, 14′) is located at the input station (4).
25) A method as claimed in claim 1 , wherein the machine (1) comprises at least one further proximity sensor (14, 14′); during the recording step, the further proximity sensor (14, 14′) emitting a further recording signal (S, Sa) relative to the position of at least one further seat (11, 11′, 11 a, 11′a) of said housing (10 a); the reference data item comprising the further recording signal (S, Sa); and, during the comparing step, the recording signal (S, Sa) being compared with the further recording signal (S, Sa) to obtain the comparison data item (DC).
26) A method as claimed in claim 25 , wherein the reference data item (DR) comprises at least one given data item; during the comparing step, the recording signal (S, Sa) being compared with the further recording signal (S, Sa) and the given data item to obtain the comparison data item (DC).
27) A diagnostic method for operating components (12) of a machine (1) for processing articles (2); the machine (1) comprising a transfer device (5), which feeds the articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises at least one seat (11, 11′, 11 a, 11′a) and at least one operating component (12) for moving said seat (11, 11′, 11 a, 11′a); during each operating cycle, the seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station along a return path (P2); and the method being characterized by comprising a recording step, during which at least one proximity sensor (14, 14′) emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) with respect to at least one reference position; a comparing step to compare the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC); and an analysis step to determine at least one fault of the operating component (12) as a function of the comparison data item (DC); during the comparing step, the recording signal (S, Sa) being processed to obtain a response curve (C1) indicating distances between the seat (11, 11′, 11 a, 11 a) and the proximity sensor (14, 14′) as a function of machine angles of the transfer device (5); and the response curve (C1) being compared with the reference data item (DR) to obtain the comparison data item (DC).
28) A diagnostic method for operating components (12) of a machine (1) for processing articles (2); the machine (1) comprising a transfer device (5), which feeds the articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises at least one seat (11, 11′, 11 a, 11′a) and at least one operating component (12) for moving said seat (11, 11′, 11 a, 11′a); during each operating cycle, the seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station (4) along a return path (P2); and the method being characterized by comprising a recording step, during which at least one proximity sensor (14, 14′) emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) with respect to at least one reference position; a comparing step to compare the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC); and an analysis step to determine at least one fault of the operating component (12) as a function of the comparison data item (DC); during the comparing step, the recording signal (S, Sa) being processed to obtain a response curve (C1) indicating distances between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′) as a function of machine angles of the transfer device (5); the response curve (C1) having different heights (h, h′) for different machine angles; at least one height (h, h′) of the response curve being compared with the reference data item (DR) to obtain the comparison data item (DC) relative to the distance between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′); and at least one machine angle (AM; T1) of the response curve being compared with the reference data item (DR) to obtain a comparison data item (DC) indicating the position of the seat (11, 11′, 11 a, 11′a) along the feed and/or return path (P1, P2).
29) A diagnostic method for operating components (12) of a machine (1) for processing tobacco articles (2); the machine (1) comprising a transfer device (5), which feeds the tobacco articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises at least one seat (11, 11′, 11 a, 11′a) and at least one operating component (12, 12′) for moving said seat (11, 11′, 11 a, 11′a); during each operating cycle, the seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station (4) along a return path (P2); and the method being characterized by comprising a recording step, during which at least one proximity sensor (14, 14′) emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) with respect to at least one reference position; a comparing step to compare the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC); and an analysis step to determine at least one fault of the operating component (12) as a function of the comparison data item (DC); the machine comprising at least one further proximity sensor (14, 14′); during the recording step, the further proximity sensor (14, 14′) emitting a further recording signal (S, Sa) relative to the position of at least one further seat (11, 11′, 11 a, 11′a); the reference data item (DR) comprising the further recording signal (S, Sa); and, during the comparing step, the recording signal (S, Sa) being compared with the further recording signal (S, Sa) to obtain the comparison data item (DC).
30) A method as claimed in claim 29 , wherein the reference data item (DR) comprises at least one given data item; during the comparing step, the recording signal (S, Sa) being compared with the further recording signal (S, Sa) and the given data item to obtain the comparison data item (DC).
31) A machine for processing substantially cylindrical tobacco articles (2); the machine (1) comprising a transfer device (5), which feeds the articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises a number of housings (10, 10 a) oriented crosswise to the feed path (P1) and each having at least two respective elongated seats (11, 11′, 11 a, 11′a); during each operating cycle, each seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station (4) along a return path (P2); the machine comprising at least one operating component (12, 12′) for moving two seats (11, 11′, 11 a, 11′a) of a respective housing (10 a) with respect to each other as the seats (11, 11′, 11 a, 11′a) travel along the feed path (P1) and/or the return path (P2); and the machine (1) being characterized by comprising a control device (13), in turn comprising at least one proximity sensor (14, 14′) which emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) of the housing (10 a) with respect to at least one reference position, and a computer (15) which compares the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC) and determine at least one fault of the operating component (12) as a function of the comparison data item (DC).
32) A machine as claimed in claim 31 , wherein the control device (13) implements a method as claimed in claim 2 .
33) A machine for processing articles (2); the machine (1) comprising a transfer device (5), which feeds the articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises at least one seat (11, 11′, 11 a, 11′a) and at least one operating component (12, 12′) for moving said seat; during each operating cycle, the seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station (4) along a return path (P2); and the machine (1) being characterized by comprising a control device (13), in turn comprising a proximity sensor (14, 14′) which emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) of a housing (10 a) with respect to at least one reference position, and a computer (15) for comparing the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC), and for determining at least one fault of the operating component (12) as a function of the comparison data item (DC); the control device (13) comprising at least one further proximity sensor (14, 14′); the further proximity sensor (14, 14′) emitting a further recording signal (S, Sa) relative to the position of at least one further seat (11, 11′, 11 a, 11′a); the reference data item comprising the further recording signal (S, Sa); and the computer comparing the recording signal (S, Sa) with the further recording signal (S, Sa) to obtain the comparison data item (DC).
34) A machine as claimed in claim 33 , wherein the reference data item (DR) comprises at least one given data item; the computer (15) comparing the recording signal (S, Sa) with the further recording signal (S, Sa) and the given data item to obtain the comparison data item (DC).
35) A machine for processing articles (2); the machine (1) comprising a transfer device (5), which feeds the articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises at least one seat (11, 11′, 11 a, 11′a) and at least one operating component (12) for moving said seat (11, 11′, 11 a, 11′a); during each operating cycle, the seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station (4) along a return path (P2); and the machine (1) being characterized by comprising a control device (13), in turn comprising a proximity sensor (14, 14′) which emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) with respect to at least one reference position, and a computer (15) for comparing the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC), and for determining at least one fault of the operating component (12) as a function of the comparison data item (DC); the computer (15) processing the recording signal (S, Sa) to obtain a response curve (C1) indicating distances between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′) as a function of machine angles of the transfer device (5); and the response curve (C1) being compared with the reference data item (DR) to obtain the comparison data item (DC).
36) A machine for processing articles, the machine (1) comprising a transfer device (5), which feeds the articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises at least one seat (11, 11′, 11 a, 11′a) and at least one operating component (12) for moving said seat (11, 11′, 11 a, 11′a); during each operating cycle, the seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station (4) along a return path (P2); and the machine (1) being characterized by comprising a control device (13), in turn comprising a proximity sensor (14, 14′) which emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) with respect to at least one reference position, and a computer (15) for comparing the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC), and for determining at least one fault of the operating component (12) as a function of the comparison data item (DC); the computer (15) processing the recording signal (S, Sa) to obtain a response curve (C1) indicating distances between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′) as a function of machine angles of the transfer device (5); the response curve (C1) having different heights (h, h′) for different machine angles; the computer (15) comparing at least one height (h, h′) of the response curve (C1) with the reference data item (DR) to obtain a comparison data item (DC) relative to the distance between the seat (S, Sa) and the proximity sensor (14, 14′); and the computer (15) comparing at least one machine angle (AM; T1) of the response curve with the reference data item to obtain a comparison data item (DC) indicating the position of the seat (11, 11′, 11 a, 11′a) along the feed and/or return path (P1, P2).
37) A diagnostic method for operating components (12) of a machine (1) for processing articles (2); the machine (1) comprising a transfer device (5), which feeds the articles (2) along a feed path (P1) from an input station (4) to an output station (6), and comprises at least one seat (11, 11′, 11 a, 11′a) and at least one operating component (12) for moving said seat (11, 11′, 11 a, 11′a); during each operating cycle, the seat (11, 11′, 11 a, 11′a) picking up a respective article (2) at the input station (4), releasing the article (2) at the output station (6), and returning to the input station (4) along a return path (P2); and the method being characterized by comprising a recording step, during which at least one proximity sensor (14, 14′) emits a recording signal (S, Sa) relative to the position of at least one seat (11, 11′, 11 a, 11′a) with respect to at least one reference position; a comparing step to compare the recording signal (S, Sa) with at least one reference data item (DR) to obtain at least one comparison data item (DC); and an analysis step to determine at least one fault of the operating component (12) as a function of the comparison data item (DC); the recording signal (S, Sa) having a peak (PR) indicating the minimum distance between the seat (11, 11′, 11 a, 11′a) and the proximity sensor (14, 14′); and, during the comparing step, the peak (PR) being compared with the reference data item (DR) to obtain the comparison data item (DC).
38) A control device (13) for producing a machine as claimed in claim 31.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITB02005A000204 | 2005-03-31 | ||
IT000204A ITBO20050204A1 (en) | 2005-03-31 | 2005-03-31 | MACHINE FOR THE TREATMENT OF ITEMS, DEVICE FOR CONTROL AND DIAGNOSTIC METHOD APPLIED TO THIS MACHINE |
Publications (1)
Publication Number | Publication Date |
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US20060236493A1 true US20060236493A1 (en) | 2006-10-26 |
Family
ID=36660039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/396,231 Abandoned US20060236493A1 (en) | 2005-03-31 | 2006-03-31 | Machine for processing articles, control device, and diagnostic method applied to such a machine |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060236493A1 (en) |
EP (1) | EP1707064A1 (en) |
JP (1) | JP2006280374A (en) |
IT (1) | ITBO20050204A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102014202314A1 (en) * | 2014-02-07 | 2015-08-13 | Hauni Maschinenbau Ag | Apparatus and method for turning rod-shaped articles of the tobacco-processing industry |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5209249A (en) * | 1988-07-28 | 1993-05-11 | G. D. Societa Per Azioni | Cigarette checking apparatus |
US20040108186A1 (en) * | 2002-12-05 | 2004-06-10 | Hauni Maschinenbau Ag | Multifunctional conveyor drum |
US20050139452A1 (en) * | 2003-10-24 | 2005-06-30 | Hauni Maschinenbau Ag | Multifunctional conveying drum |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3232792A1 (en) * | 1981-09-19 | 1983-03-31 | Hauni-Werke Körber & Co KG, 2050 Hamburg | Conveying apparatus for bar-shaped articles of the tobacco-processing industry |
-
2005
- 2005-03-31 IT IT000204A patent/ITBO20050204A1/en unknown
-
2006
- 2006-03-28 EP EP06111787A patent/EP1707064A1/en not_active Withdrawn
- 2006-03-30 JP JP2006095480A patent/JP2006280374A/en active Pending
- 2006-03-31 US US11/396,231 patent/US20060236493A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5209249A (en) * | 1988-07-28 | 1993-05-11 | G. D. Societa Per Azioni | Cigarette checking apparatus |
US20040108186A1 (en) * | 2002-12-05 | 2004-06-10 | Hauni Maschinenbau Ag | Multifunctional conveyor drum |
US20050139452A1 (en) * | 2003-10-24 | 2005-06-30 | Hauni Maschinenbau Ag | Multifunctional conveying drum |
Also Published As
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ITBO20050204A1 (en) | 2005-06-30 |
EP1707064A1 (en) | 2006-10-04 |
JP2006280374A (en) | 2006-10-19 |
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