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
  • A24C5/38—Machines combined with printing devices
• • 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
  • A24C5/3412—Examining cigarettes or the rod, e.g. for regulating the feeding of tobacco; Removing defective cigarettes by means of light, radiation or electrostatic fields
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
  • B41P2233/00—Arrangements for the operation of printing presses
  • B41P2233/50—Marks on printed material
  • B41P2233/52—Marks on printed material for registering

Definitions

• the present invention relates to a printing apparatus for printing desired information on a cigarette rod, that is, a paper web used for manufacturing a cigarette rod in a cigarette manufacturing machine.
• a printing apparatus of a cigarette manufacturing machine is disclosed, for example, in Japanese Patent Application Laid-Open No. 5-327938.
• the printing apparatus of this publication includes a printing unit, and the printing unit is interposed in a supply path of a base web.
• the paper web is fed along the feed path to the wrapping section of the cigarette making machine, and in this process the printing unit prints the desired information intermittently on the paper web surface.
• each print information on one web that is, a length equivalent to two cigarettes in the filter cigarette is secured.
• each print information includes a pair of marks, and these marks are separated from each other at a predetermined interval in the longitudinal direction of the paper web.
• each mark includes a number indicating the cigarette maker and a symbol indicating the factory where the cigarette maker is installed.
• the filler material including the tobacco
• the tobacco rod is wrapped in the paper web to form a tobacco rod.
• the tobacco rods are sent from the wrapping section to the cutting section of the cigarette making machine, where they are cut into individual cigarette rods.
• Each cigarette rod has the above-mentioned length and one piece of print information, and this print information is positioned at the center of the cigarette rod in the longitudinal direction.
• the cigarette rod manufactured by the cigarette manufacturing machine is supplied to a filter attachment machine, a so-called filter attachment.
• a cigarette rod is cut between the pair of marks and two cigarette rods are cut. It becomes a garbage part, and each cigarette part has one mark.
• the filter plug is positioned between the two cigarette portions, and the cigarette and the filter plug are formed into one double filter cigarette by winding a tip paper. More specifically, the tipper is wrapped around the end of the cigarette part that sandwiches the fill tab lug and the fillet plug from both sides, connecting the filter plug to both cigarette parts and hiding the mark on each cigarette part .
• the double filter cigarette is cut from the center of the filter plug via the tipper to obtain individual filter cigarettes.
• the smoker since the mark of the cigarette portion is hidden by the tip paper, the smoker does not smoke the filter cigarette to the position of the mark, and the mark is not burned.
• the printing apparatus while the density signal from the density sensor is used to control the density of the print information, the time when the print information should reach the density sensor and the time when the print information is actually detected are used. That is, it is also used to calculate the amount of time deviation from the output time of the density signal. Then, based on the calculated shift amount, the timing at which the print information reaches the density sensor, that is, the position shift of the print information is compensated. Therefore, the printing apparatus of the present invention does not require a dedicated sensor for calculating the amount of deviation.
• the above-mentioned arrival time can be determined based on the tobacco rod cutting timing, the distance between the tobacco rod cutting position and the concentration sensor, and the tobacco rod delivery speed (vapor web supply speed).
• cigarette rods having poor print density are individually excluded based on the exclusion signal, so that the defective cigarette rods do not mix into non-defective cigarette rods.
• the above-described ink supply means includes an ink spray for spraying the ink, and in this case, the density control device can change at least one of the ink spraying time and the ink spraying interval.
• the ink discharge amount from the ink spray is finely controlled according to the production speed of the cigarette rod, and it is possible to appropriately maintain the density of print information regardless of the operation speed of the cigarette production machine. Become.
• the timing control device determines whether the displacement of each cigarette rod is within an appropriate range, and outputs an exclusion signal when the displacement is outside the appropriate range.
• a path length adjusting means for calculating an average deviation amount of print information based on the rod deviation amount and adjusting a length of a supply path from the printing section to the wrapping section based on the calculated average deviation amount; I can do it.
• the position of the print information is defective.
• the cigarette rods are removed individually, and defective cigarette rods do not mix with good cigarette rods.
• the timing control device also outputs a stop signal of the cigarette driver when the average deviation amount is at an abnormal level. Therefore, a large number of defective cigarette rods are not produced.
• the path length adjusting means is provided on a supply path between the printing section and the wrapping section, and a guide roller for guiding the traveling of the paper web; and a rotatable support for the guide roller. It includes a roller carrier that can be displaced in an intersecting direction, and a drive source that displaces the roller carrier.
• the roller carrier is a rotating arm having a guide roller at the tip, and the base end of the rotating arm is rotatably supported.
• the path length adjusting means advances or delays the timing at which the print information reaches the density sensor with the movement of the guide roller, thereby compensating for the shift amount.
• Fig. 2 is a side view of a cigarette rod manufactured by the cigarette making machine of Fig. 1;
• Fig. 3 shows the printing unit and its surroundings
• FIG. 4 shows an adjusting device for adjusting the length of the paper web supply path between the printing unit and the wrapping section
• FIG. 5 is a plan view of the concentration sensor
• FIG. 6 shows a control device for controlling the operation of the ink spray and the adjusting device, respectively, based on signals from the concentration sensor and the rotary encoder;
• FIG. 7 is a control block diagram for controlling the print density of print information in the control device of FIG. 6;
• FIG. 8 is a flowchart showing a print density control routine;
• FIG. 9 is a control block diagram for controlling the position shift of print information, that is, the arrival timing, in the control device of FIG. 6;
• FIG. 10 is a flowchart showing a control routine of the arrival timing.
• FIG. 1 schematically shows a part of a cigarette making machine.
• the cigarette making machine is provided with an endless tobacco band 2, and the tobacco band 2 is located on the right end side in FIG.
• the tobacco band 2 adsorbs the filler in a layer on the lower surface, and the filler includes chopped tobacco.
• the filler adsorbed on the tobacco band 2 is supplied to the wrapping section 4 as the tobacco band 2 travels.
• the wrapping section 4 is supplied with a vapor web W, and the filler from the tobacco band 2 is received on the paper web W.
• the filler material passes through the wrapping section 4 together with the web W. At this time, the filler is wrapped in the paper web W, and the tobacco rod TR is continuously formed.
• wrapping section 4 is provided with endless garniture tape 6.
• the horizontal portion of the garniture tape 6 extends through the wrapping section 4 to allow the paper web W to travel in one direction together with the filler.
• the wrapping section 4 includes a molding pad 7 for guiding the horizontal portion of the garniture tape 6, on which the tongs 8, the short holder 10 and the tongue holder 12 are sequentially arranged from the tobacco band 2.
• the tongs 8 are equipped with a shoe, and this shoe acts as a scraper for separating the filler from the tobacco band 2. Accordingly, the filling cut is supplied from the tobacco band 2 onto the paper web W. Thereafter, the tongs 8 compress the filler into a cylindrical shape in cooperation with the forming bed 7 and the garniture tape 6, and at this time, the paper web W is formed into a U-shape.
• the die 10 forms one side edge of the paper web w along the cylindrical filler, and the ring holder 12 forms the other side edge of the paper web W along the cylindrical filler. Then, the cylindrical filler is wrapped by the paper web W by overlapping with one side edge.
• the tobacco rod TR sequentially passes through a plurality of heaters 14, and these heaters 14 are arranged downstream of the long holder 12.
• the heater 14 dries the seam line of the tobacco rod TR.
• the cutting section 16 includes a rotary encoder 17, which detects the rotation angle of the rotary knife 17 and outputs a detection signal.
• the paper web P is guided from a web roll (not shown) to a garniture tape 6 in a wrapping section 4 along a predetermined supply path.
• a web reservoir 18, a feed roller 19 and a printing unit 20 are sequentially arranged from the web roll side.
• the feed roller 19 feeds out the paper web W from the web roll at a speed corresponding to the traveling speed of the garniture tape 6.
• the web A predetermined braking force is applied to the roll.
• the printing unit 20 includes an ink spray 24 and a pair of inlet rollers 22. These inlet ports 22 rotate while being in contact with each other, and receive the ink sprayed from the inlet 24.
• a printing roller 28 is rotatably connected to one inlet roller 22 via a pair of transfer rollers 26, and the above-described paper web W passes between the printing roller 28 and the press roller 30. .
• the ink received by the pair of inlet rollers 22 is supplied to the printing roller 28 via the pair of transfer rollers 26, and the printing roller 28 intermittently prints desired information on the paper web W.
• the information is printed on the paper web W at a distance corresponding to the cigarette rod CR described above. Therefore, the cigarette rod CR has one printed information at a time, and this printed information is positioned at the center in the longitudinal direction of the cigarette rod CR, and as described above in the diameter direction of the cigarette rod CR. It is located on the opposite side of the seam line.
• the printing information PI includes a pair of marks M, and a predetermined interval is secured between the marks M in the longitudinal direction of the paper web W, that is, the cigarette rod CR. The length between each mark M and the corresponding end face of the cigarette rod CR is equal.
• Each mark M includes a number indicating a cigarette manufacturing machine and a symbol indicating a factory number where the manufacturing machine is installed.
• FIG. 3 illustrates the ink spray 24 and a system for supplying ink and compressed air to the ink spray 24.
• the ink spray 24 includes a nozzle 34 at its tip, and the nozzle 34 has a spray port 32.
• the spray port 32 opens toward the above-described pair of inlet rollers 22.
• the ink spray 24 includes a valve needle (not shown), and the norb 21 is driven by a solenoid to open and close the spray port 32 of the nozzle 34.
• the ink spray 24 has two ports 36, 38 on its outer surface. Po An ink supply pipe 40 and an air supply pipe 42 extend from the ports 36 and 38, respectively.
• the ink supply line 40 is connected to an ink tank 46, and the ink tank 46 stores blue ink.
• a variable throttle 44 is inserted in the ink supply conduit 40.
• a pressure line 48 extends from the top of the ink tank 46, and the pressure line 48 is connected to a compressed air source 50.
• the pressure line 48 is provided with a regulator 52 and an on-off valve 54 in order from the compressed air source 50 side.
• the on-off valve 54 When the on-off valve 54 is open, the compressed air source 50 supplies compressed air into the ink tank 46 via the pressurizing line 48, and the pressure of the compressed air is adjusted by the regulator 52. Therefore, the ink in the ink tank 46 is in a state of being pressurized by the compressed air.
• the air supply line 42 is also connected to the compressed air source 56.
• a regulator 58 and a solenoid pulp 60 are sequentially passed through the air supply pipe line 42 from the compressed air source 56 side.
• the solenoid pulp 60 is a three-port, two-position directional control valve that is switched between a supply position for supplying compressed air to the ink spray 24 and a discharge position for discharging compressed air from the ink spray 24. Therefore, when the solenoid valve 60 is switched to the supply position, compressed air is supplied from the compressed air source 56 to the ink spray 24 via the air supply line 42, and the pressure of the compressed air is regulated by the regulator. Adjusted by 5-8.
• the spray port 32 of the nozzle 34 is opened and closed by driving the valve needle as described above, and the valve needle is driven by a solenoid. Therefore, when a drive signal is supplied in a pulsed manner to the solenoid of the valve needle, ink is intermittently sprayed from the spray port 32. Therefore, the amount of ink ejected depends on the output of the drive signal. It is determined by the interval (spray time of ink) and the output interval of the drive signal (spray interval of ink).
• the basic spraying time and the basic spraying interval are determined according to the ink consumption, that is, the production speed of the cigarette rod CR.
• the production speed of the cigarette rod CR is calculated from the delivery speed of the tobacco rod TR, in other words, the rotation speed of the rotary knife in the cutting section 16 described above.
• the supply path of the paper web W is provided with an adjusting device 62.
• the adjusting device 62 is positioned between the printing unit 20 and the wrapping section 4, and varies the length of the travel path of the paper web w from the printing unit 20 to the wrapping section 4.
• the adjusting device 62 includes a guide roller 64, and the guide roller 64 guides the traveling of the paper web W.
• the guide roller 64 is rotatably supported at the tip of the control arm 66, and the base end of the control arm 66 is attached to the output shaft of the step motor 68.
• the step motor 68 rotates the control arm 66 in the forward direction (clockwise) or the reverse direction (counterclockwise) as seen in FIG.
• the rotation of the control arm 66 displaces the guide roller 64 in a direction intersecting the traveling direction of the paper web W, and the length of the traveling path of the paper web W changes accordingly. Specifically, as shown in FIG. 4, when the control arm 66 is turned in the forward direction, the length of the traveling path is increased, whereas the control arm 66 is turned in the reverse direction. When this is done, the length of the travel path is reduced.
• a photographic density sensor 70 is disposed between the wrapping section 4 and the cutting section 16, and the density sensor 70 is connected to the delivery path of the tobacco rod TR. Is located directly below.
• the density sensor 70 detects the print information PI of the tobacco rod TR, that is, its wrapping paper (paper paper W), and outputs this detection signal.
• the detection signal from the density sensor 70 indicates the print information PI, that is, the print density of the pair of marks M.
• the concentration sensor 70 has a detection window 72 facing the tobacco rod TR, and irradiates infrared rays to the tobacco rod TR through the detection window 72. I do.
• the infrared light reflected by the tobacco rod TR is received by the density sensor 70 through the detection window 72, and the density sensor 70 receives the intensity level of the received infrared light, that is, a density signal indicating the print density of the print information PI. Is output.
• the density sensor 70 can effectively receive the infrared light reflected from the mark M, and the density signal accurately indicates the print density of the print information PI.
• the rotary encoder 17 and the collar sensor 70 described above are electrically connected to an input side of a control device 74 together with an input device 76 such as a keyboard.
• a solenoid driver 78, a motor driver 80, and a display device 82 are electrically connected to the output side of the control device 74, respectively.
• the solenoid driver 78 is connected to the ink spray 24, that is, the solenoid of the valve 21, and the motor driver 80 is connected to the step motor 68.
• the controller 7 determines from the density signal from the density sensor 70 the print density of the print information PI and whether or not the timing at which the print information PI reaches the density sensor 70 is appropriate. The print density and arrival timing of the print information PI are adjusted based on.
• control device 74 The management function of the control device 74 described above is specifically realized by the control block diagrams and control routines shown in FIGS. 7 to 10. These control blocks and control routines will be described in detail below.
• the density signal from the density sensor 70 is supplied to the amplifier 84, which amplifies the density signal and supplies the amplified density signal to the integrator 86.
• the integrator 8 6 integrates the amplified density signal, and converts the integrated density signal to the next sampling circuit 8 8 To supply.
• Sampling circuitry 8 8 are opened and closed on the basis of the synchronization signal S s, supplies a concentration signal of one of the print information PI in the latch circuit 9 0.
• the latch circuit 90 performs AZD conversion of the density signal from the sampling circuit 88 and supplies the result to the next comparator 96 while temporarily holding the conversion result.
• the density signal from the sampling circuit 88 is supplied to the adjustment circuit 92, which adjusts the threshold value based on the supplied density signal, and supplies the adjusted threshold value to the comparator 94. .
• the comparator 94 receives the density signal from the amplifier 84 together with the comparison threshold value, compares the density signal with the threshold value, and outputs the comparison result. More specifically, the comparator 9 4 ffi force Ma one click signal S M only when the concentration signal is greater than or equal to the threshold. Therefore, when the print information PI, that is, a pair of marks M is normally printed on the tobacco rod TR, the comparator 94 outputs two mark signals S M for each print information PI. .
• the comparator 96 is supplied with the upper limit value and the lower limit value from the CPU board 98, and the comparator 96 receives the supplied density signal from the latch circuit 90 when the supplied density signal is supplied. The signal is compared with the upper limit value and the lower limit value, respectively, and the comparison result is supplied to the CPU board 98.
• the comparator 96 when the density signal is equal to or lower than the light lower limit or equal to or higher than the dark upper limit, the comparator 96 outputs an abnormal value as a density value, whereas the density signal is larger than the lower limit, and If it is smaller than the upper limit, the density signal is output as it is.
• the CPU port 98 displays the density corresponding to the received density signal on the display device 82.
• the CPU port 98 is a microcomputer including a CPU, a memory, peripheral devices, and an input / output interface.
• the CPU board 98 determines whether or not the density signal from the comparator 96, that is, the print density of the print information PI is within an appropriate range. Based on the result of this determination, if necessary, the CPU board 98 corrects the drive signal to be supplied to the solenoid of the ink spray 24 via the solenoid driver 78. You. As a result, the print density of the print information PI, that is, the mark M is adjusted.
• FIG. 8 shows a control routine executed in the CPU port 98 to adjust the density of the print information PI.
• step S1 the density signal of the print information PI from the comparator 96 is read (step S1), and it is determined whether or not the read density signal is an abnormal value (step S1). Step S2). If the determination result is true (Yes), an exclusion signal is output from the CPU board 98 (step S3). On the other hand, if the determination result of step S2 is false (No), step S3 is bypassed, and the next step S4 is performed.
• the cigarette rod CR having the print information PI having an abnormal print density is removed from the process of being transferred from the cigarette manufacturing machine to the filter attachment or in the above-described filter attachment.
• step S4 it is determined whether or not the reading of the density signal has reached the predetermined number of times X. If the determination result is false, the steps from step S1 to S4 are repeated. Will be implemented.
• step S4 If the result of the determination in step S4 is true, the average value A of the X density signals is calculated (step S5), and it is determined whether or not the average density A is at an abnormal level (step S5). 6).
• step S6 the situation where the determination result of step S6 is true means that the read density signal has many abnormal values and the exclusion signal is frequently output. Therefore, in such a situation, it is determined that there is an error in the setting of the basic spraying time and Z or the basic spraying interval in the ink spray 24, and the CPU port 98 outputs an operation stop signal to output the cigarette.
• the operation of the manufacturing machine is stopped (Step S7). If the determination result in step S6 is false, it is determined whether or not the average density A shows a light tendency (step S8), and whether or not the average density A shows a dark tendency (step S9). Determined sequentially.
• step S8 the average concentration A and the target concentration range are compared, and if the average density A is smaller than the target density range, the result of the determination in step S8 is true. On the other hand, when the average density A is larger than the target density range, the determination result of step S9 is true.
• step S8 determines whether the print density of the print information PI is higher than the target density range. If the determination result of step S9 is true, that is, if the print density of the print information PI is higher than the target density range, the print information PI A light increment AL as a control amount for reducing the concentration is calculated (step S11). Again, the light increment is obtained based on the deviation between the average concentration A and the target concentration range (ie, the upper limit of the target concentration range).
• the drive signal for the above-described solenoid is changed based on the dark increment ⁇ D or the light increment ⁇ L (step S12). .
• step S12 the output time and / or output interval of the drive signal is changed. Therefore, the ink spraying time and Z or the spraying interval are corrected, and the amount of ink ejected from the ink spray 24 is increased or decreased. As a result, the density of the print information PI printed on the paper web W by the printing unit 20 described above becomes darker or lighter, and is kept within the target density range.

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (1)

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Family Applications (1)

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Citations (3)

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• 2003
  • 2003-03-13 WO PCT/JP2003/003018 patent/WO2003077686A1/ja not_active Application Discontinuation
  • 2003-03-13 AU AU2003220888A patent/AU2003220888A1/en not_active Abandoned
  • 2003-03-13 CN CNB038064626A patent/CN1301074C/zh not_active Expired - Fee Related
  • 2003-03-13 EP EP03712686A patent/EP1500336A1/en not_active Withdrawn
  • 2003-03-13 JP JP2003575746A patent/JPWO2003077686A1/ja not_active Withdrawn
• 2004
  • 2004-09-17 US US10/942,895 patent/US20050028832A1/en not_active Abandoned

Patent Citations (3)

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