JPH10136960A - Feeder of cigarette paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feeder of cigarette paper capable of applying a stable tension to the cigarette paper fed into a rolling section of a cigarette producing machine and also capable of removing the tension applied to the cigarette paper in accordance with an operating state of the producing machine. SOLUTION: This feeder of cigarette paper has a suction brake 24, and the operation of the suction brake 24 is controlled by opening and closing of a valve box 52 according to the operation of an air cylinder 54 by a controller 94. An operating mode signal from switches 96, 98 or 100 switching each operation mode is inputted into the controller 94.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wrapping paper supply apparatus for supplying wrapping paper to a wrapping tube section of a cigarette making machine.

[0002]

2. Description of the Related Art The supply of paper to a tube section of a cigarette making machine is continuously performed by the paper taken out from a paper roll passing through a paper supply path. At this time, if the running paper becomes loose, the tobacco rod obtained by passing through the winding tube section causes wrinkling or poor gluing of the winding paper, thereby impairing the quality of the cigarette product.
For this reason, a suction brake is provided in the middle of the winding paper supply path, and by applying a braking force to the running of the winding paper with the suction brake, a moderate tension is applied to the winding paper supplied to the winding tube section so as to suppress the slack. A wrapper feeder is used.

[0003] In this suction brake, the wrapping paper is sucked to a suction surface thereof by suction pressure supplied from a suction source, and a braking force is applied to the wrapping paper by the suction force and the friction generated between the wrapping paper and the suction surface. .

[0004]

When the operation of the cigarette making machine is stopped, it is necessary to reduce the tension applied to the wrapper. That is, when a stop command is given to the manufacturing machine, the garniture belt and the wrapping paper supply device in the winding tube section gradually stop completely while gradually reducing their operating speed. At this time, the traveling speed of the wrapping paper on the wrapping paper supply path also gradually decreases in synchronization with the traversing speed.If the braking force of the suction brake is not released when the traveling speed falls below a certain level, the braking force is used. The tension generated in the wrapping paper may be excessive and the wrapping paper may be broken.

[0005] The above cigarette paper supply apparatus is excellent in that the cigarette paper supplied to the winding tube section can be provided with an appropriate tension during the steady operation of the cigarette making machine, but the suction brake is always operated. Therefore, when the manufacturing machine is stopped, the tension applied to the wrapping paper becomes excessive.
Also, before starting the manufacturing machine,
Since the suction brake has already been activated, it will hinder the work of setting the paper roll in the supply path to the winding tube section as its start-up work, and the tension applied to the paper roll when performing the fine movement operation at the start-up Is excessively large and the wrapping paper may be broken.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to apply tension to a roll of paper supplied to a roll-to-roll section according to the operating condition of a cigarette making machine, or An object of the present invention is to provide a wrapping paper supply device capable of removing the tension.

[0007]

In order to achieve the above object, a paper supply apparatus according to claim 1 is provided for guiding a paper roll continuously fed from a paper roll toward a tube section of a cigarette making machine. A supply path, a suction brake provided in the middle of the roll paper supply path to apply a braking force to the running of the roll paper, and a suction pressure supply to the suction brake when a stop command is given to the cigarette making machine. Control means for stopping.

According to the first aspect of the present invention, during operation of the cigarette making machine, a suction brake applies a braking force to the running paper on the paper feeding path during the operation of the winding pipe section. A predetermined tension is applied to the wrapping paper supplied to. On the other hand, when a stop command is given to the cigarette making machine, the control means stops the supply of the suction pressure to the suction brake, whereby the braking force of the suction brake is released, and the tension applied to the paper is removed.

In the case of the cigarette paper supply device according to the second aspect, when the operation start command is given to the cigarette making machine, the control means controls the suction pressure to the suction brake after a lapse of a predetermined time from the operation start command. Start supplying.
In this case, when starting up the operation of the cigarette making machine, there is a time difference between the start of the supply of the cigarette and the start of the braking of the suction brake, so that no tension is applied to the cigarette at the beginning of the start of the cigarette making machine.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The function of a known cigarette making machine will be briefly described. For example, as shown in FIG. 1, a cut cigarette K supplied into a chimney 4 is sucked toward an upper conveyor unit 6. Is done. A porous conveyor belt 8 is accommodated in the conveyor unit 6, and the lower surface thereof is a suction surface. Accordingly, the cut tobacco K is sucked and held on the lower surface of the conveyor belt 8, and is conveyed toward the winding tube section 18 as the conveyor belt 8 travels. Conveyor belt 8
The cut tobacco K, which is adsorbed and held in a layered form, is adjusted to an appropriate thickness in a state where the layer thickness is periodically increased by the trimming device 10, and then on the wrapping paper P at the start end of the winding tube section 18. Can be transferred to In the winding tube section 18, the garniture belt 12 is wound around a number of rollers 14, and is driven by the drive drum 16 in the direction of the arrow in the figure.

The cigarette feeder, which is a part of the cigarette making machine, includes a cigarette roll and a pooling roller (both not shown), and the cigarette paper P is continuously fed from the cigarette roll. The wrapping paper P is guided to the winding tube section 18 through the suction brake 24, the swing roller 26, and a number of rollers 28 and 30 in the middle of the supply path 22. Further, the production control number is periodically printed on the wrapping paper P by the printing unit 32 provided in the middle of the supply path 22.

In the winding tube section 18, the wrapping paper P is superimposed on the garniture belt 12, and the cut tobacco K is cut on the upper surface thereof.
And is transported along with the travel of the garniture belt 12, and in the transport process, they are formed into a rod shape. More specifically, prior to the wrapping paper P and the cut tobacco K passing through a gluing section (not shown) for the wrapping paper P in the winding tube section 18, the wrapping paper P is first bent into a U-shape so as to envelop the cut tobacco K. When the cigarette is passed, it is glued to one wrap portion of the wrapping paper P and bent so that the one wrap portion is overlapped with the other wrap portion, thereby forming a cigarette continuum. The rod R is continuously formed. Thereafter, the tobacco rod R is accurately cut at the thickened portion of the cut tobacco K by the cutting machine 20 to be a cigarette or a double-length cigarette. At this time, the winding tube section 18
If the wrapping paper P is loosened in the middle of the supply path 22 when the wrapping paper P is supplied toward the, the formed tobacco rod R may have problems such as wrinkles and poor gluing. For this reason, the roll paper supply device is provided with a suction brake 24 in the middle of the supply path 22, and the suction brake 24 applies a braking force to the roll paper P running along with the traveling of the garniture belt 12, and applies a braking force to the roll paper P. Although the tension is provided, the suction brake 24 will be described below.

Referring to FIG. 2, a part of the supply path 22 of the wrapping paper P in the wrapping paper supply device is shown in an enlarged manner in detail. Suction brake 24, swing roller 26,
A number of rollers 28 and a cylinder unit 34 are mounted on a suction brake panel 36, respectively. The suction brake panel 36 is mounted on the front surface of the base frame 1 in the cigarette making machine.
It constitutes a part of the base frame 1. The body portion of the suction brake 24 has a substantially sector shape, and includes a pair of front and rear sector side plates 38 and a sector-shaped intermediate portion 41 sandwiched between the side plates 38, and the arc surface of the intermediate portion 41 serves as a suction surface 40. Is formed. A suction chamber 42 is formed in the intermediate portion 41 along the suction surface 40,
The suction chamber 42 communicates with a number of small holes distributed on the suction surface 40. The surfaces other than the suction surface 40 of the intermediate portion 41 include an upright side surface 46 and a horizontal lower surface 48.
It has become. A suction port 50 projects downward from a lower surface 48 of the intermediate portion 41 of the suction brake 24, and the suction port 50 communicates with the suction chamber 42.

A guide cover 44 having a guide surface along the suction surface 40 is provided on the side plate 38 located on the front side, and a paper wrapper is provided between the lower surface of the guide cover 44 and the suction surface 40. A gap into which P can be introduced is secured. The cylinder unit 34 provided at a lower position of the suction panel 36 has a valve box 52 and an air cylinder 54. The valve box 52 is formed of a hollow rectangular parallelepiped, and the inside thereof is divided into two chambers 56a and 56b by a partition wall 68 having a valve hole. A suction port 58 communicating with the left chamber 56a protrudes horizontally from the valve box 52. The suction port 58 penetrates the suction panel 36, and is connected to a suction source via a supply pipe (not shown). It is connected.
Accordingly, during operation of the cigarette making machine, suction pressure is constantly supplied from the suction source into the left chamber 56a via the supply pipe and the suction port 58. In addition, a suction port 60 communicating with the right chamber 56b from the valve box 52.
Project upward, and the suction port 60 and the suction port 50 of the suction brake 24 form a pair. That is, by connecting the pair of suction ports 50, 60 with the suction hose 62, the suction brake 2
4 and the right chamber 56 of the valve box 52.
b denotes suction ports 50 and 60 and suction hose 6 respectively.
The two are communicated with each other.

In the right chamber 56b of the valve box 52,
One end of the air cylinder 54 protrudes with airtightness,
The piston rod 64 of the air cylinder 54 extends in the right chamber 56b toward the partition wall 68. Piston rod 64
A valve body 66 is provided at the tip of the valve body 66. When the piston rod 64 is extended, the valve body 66 closes the valve hole of the partition wall 68 to open the left and right chambers 56a, 56b.
The space between the chambers is airtightly closed, and when contracted, the valve hole is opened to allow the left and right chambers 56a and 56b to communicate with each other. That is, the opening / closing operation of the valve box 52 is enabled by the operation of the air cylinder 54. The air cylinder 54 is a single-acting cylinder with a spring, and a tension coil spring 70 housed in a front chamber 74a on the valve body 66 side connects the piston 72 to the air cylinder 5.
4 toward the front chamber 74a. One end of the extension coil spring 70 is fixed to the front wall surface of the front chamber 74a, and the other end is fixed to the rear wall of the front chamber 74a, that is, the pressure receiving surface of the piston 72. From the air cylinder 54, air inlet / outlet ports 76 communicating with the front and rear chambers 74a, 74b are provided so as to protrude therefrom, and these air inlet / outlet ports 76 are respectively connected to pneumatic lines.

The roller shaft of the swing roller 26 is attached to one end of a swing arm 78, and the other end of the swing arm 78 is attached to the front of the suction panel 36 via bolts 80. Swing roller 2
6 is when the bolt 80 is loosened.
It can be rotated up and down around the bolt 80 along the front surface of the suction panel 36, and can be fixed at any position by tightening the bolt 80. Therefore, the swing roller 26
Can be arranged at any position on an arc centered on the bolt 80. Paper roll P unwound from paper roll
After being guided to the suction surface 40 of the suction brake 24, it extends substantially vertically downward from the terminal end thereof, and is then guided by the swing roller 26. Therefore, if the position of the swing roller 26 is made variable, the suction brake 2
The contact area of the wrapping paper P with the suction surface 40, that is, the wrapping angle of the wrapping paper P can be varied. The roller shafts of the other rollers 28 are directly fixed to the front surface of the suction panel 36.

During operation of the cigarette making machine, a suction pressure is supplied from a suction source to each part, and a pneumatic pressure is supplied to each part from a pneumatic source, in addition to a driving force supplied from a power source to a power shaft. . FIG. 3 schematically shows a suction pressure supply path from the suction source to the suction brake 24, a pneumatic supply / discharge path from the pneumatic source to the air cylinder 54, and a ventilation path to the air cylinder 54. Have been. That is, when the valve box 52 is opened as illustrated, the suction chamber 4 of the suction brake 24
2 is supplied with a suction pressure from a suction source via a suction hose 62 and a valve box 52. When the wrapping paper P travels along the suction surface 40 of the suction brake 24, the wrapping paper P is attracted to the suction surface 40 and receives a frictional resistance, that is, a braking force. As described above, the wrapping paper P is drawn into the winding tube section 18 as the garniture belt 12 travels.
Is sufficiently large as compared with the braking force of the suction brake 24, so that the wrapping paper P runs against the braking force of the suction brake 24, and continues to the winding tube section 18 while receiving an appropriate tension. Supplied.

The supply and discharge of air pressure to and from the air cylinder 54 are performed by a supply / discharge path connected to the front chamber 74a. That is, the supply of pneumatic pressure to the front chamber 74a is controlled by the control valve 8
2, via a supply / discharge line 84 and a supply line 90, while the pneumatic discharge is controlled by a control valve 82, a supply / discharge line 84
And via the atmosphere conduit 92. Also, the rear room 74b
Is ventilated through a variable throttle valve 86 and a vent line 88. The control valve 82 comprises a three-port two-position electromagnetic directional control valve, and its inlet port has a supply line 9 from a pneumatic source.
0, the outlet port is connected to the atmosphere pipe 92, and the inlet / outlet port is connected to the supply / discharge pipe 84. On the other hand, the variable throttle valve 86 is composed of a flow control valve and is provided in the middle of the ventilation pipe 88.
The cross-sectional area of the passage inside 8 can be changed. Control valve 82
Is operated by receiving a control signal from the controller 94, and its solenoid is electrically connected to the controller 94.

When the controller 94 is not outputting a control signal to the control valve 82, the control valve 82 is in a non-operating position, in which the supply / discharge line 84 and the atmospheric line 92 are connected. The air cylinder 54
Is open to the atmosphere. On the other hand, the variable throttle valve 86 is opened to a predetermined opening, and the inside of the rear chamber 74b is also open to the atmosphere. Accordingly, the piston 72 of the air cylinder 54 is urged toward the front chamber 74a by the extension coil spring 70 to extend the piston rod 64, and the valve body 66 is seated on the valve seat of the partition wall 68, and its valve hole is formed. Is closed. As a result, the valve box 52 is held in a closed state, and the suction brake 24 is held in an initial stopped state.

On the other hand, when the controller 94 opens the valve box 52 to operate the suction brake 24, the controller 94 energizes the solenoid of the control valve 82 to switch its position, and the supply / discharge line 84 and the supply line 90 to the front chamber 74 of the air cylinder 54.
Supply air pressure to a. Accordingly, the piston 72 moves toward the rear chamber 74b against the urging force of the extension coil spring 70. Accordingly, the pressure in the rear chamber 74b is increased, and the discharge and ventilation is performed from the rear chamber 74b through the ventilation pipe 88 and the variable throttle valve 86.
Since the amount of air flow is restricted by the variable throttle valve 86 adjusted to a predetermined opening, the moving speed of the piston 72 is suppressed.

Next, when the controller 94 closes the valve box 52 to stop the suction brake 24, the controller 94 stops energizing the solenoid of the control valve 82 and restores the position to the inoperative position. By connecting the supply / discharge pipe 84 and the air pipe 92, the inside of the front chamber 74 a of the air cylinder 54 is opened to the atmosphere. Thereby, the air pressure in the front chamber 74a is exhausted at a time, and the air cylinder 5
At 4, the pressures in the front and rear chambers 74a and 74b are balanced. The piston 72 is biased by the tension coil spring 70 to move the front chamber 7
The piston rod 64 is moved toward the side 4a to extend the piston rod 64. Therefore, the valve body 66 of the piston rod 64 sits on the valve seat of the partition wall 68, closes its valve hole,
The operation of the suction brake 24 is stopped. At this time, when the piston 72 moves toward the front chamber 72a, ventilation from the atmosphere is performed in the rear chamber 74b through the variable throttle valve 86 and the ventilation pipe 88. Since the amount of ventilation is limited by the variable throttle valve 86, the moving speed of the piston 72 is suppressed.

In the opening and closing operation of the valve box 52 as described above, when the piston 72 moves toward the front and rear chambers 72a and 72b, the valve opening of the variable throttle valve 86 is adjusted to move the piston 72. Speed can be varied. That is, the sudden movement of the piston 72 directly means the sudden extension or contraction of the piston rod 64. If the piston rod 64 is suddenly extended, the piston 72 collides with the valve seat of the partition wall 68 at a high speed. If the valve 64 is rapidly contracted, it may collide with the wall of the right chamber 56b of the valve box 52 at high speed, and in any case, these may be damaged. Therefore, in order to prevent such damage, it is desirable that the moving speed of the piston 64 be controlled to be appropriate.

The switching control of the operation and stop of the suction brake 24 by the controller 94 as described above is performed according to the operation mode of the cigarette making machine. Therefore, an operation mode signal from a plurality of switches for setting the operation mode of the cigarette making machine is input to the controller 94, and these switches include:
Fine movement switch 9 for finely operating the cigarette making machine
6. There is a low-speed switch 98 for operating the cigarette making machine at low speed and a high-speed switch 100 for operating the cigarette making machine at high speed. In the operation of the cigarette making machine, the operation mode signals from these three switches are not repeatedly issued, and all of them are canceled by the operation stop command given to the cigarette making machine.

As the operation mode of the cigarette making machine, a low-speed operation mode or a high-speed operation mode is selected according to the production schedule of the tobacco producer. The fine operation mode is performed at the start-up of the operation of the cigarette manufacturing machine and at the time of maintenance of each part. The controller 94 controls the operation of the suction brake 24 in accordance with such an operation mode. Actually, as described above, the opening and closing control of the valve box 52, that is, the position switching control of the control valve 82 controls the air cylinder 54. The operation and stop of the suction brake 24 are performed by controlling the operation of the suction brake 24.

Referring to FIG. 4 and FIG. 5, there is shown a suction brake control routine executed by the controller 94. Hereinafter, an operation / stop control procedure of the suction brake 24 will be described based on this flowchart. In step S10, it is determined whether or not the fine movement operation mode is selected. Now, when the cigarette maker is operating in a steady state, that is, when the cigarette maker is operating in the low speed operation mode or the high speed operation mode, the fine movement mode signal is not output from the fine movement switch 96 as a matter of course. Therefore, the determination result in step S10 is false (N
o), and then proceeds to step S12.

In step S12, it is determined whether the low speed operation or the high speed operation of the cigarette making machine is being performed. In steady state, low speed switch 98 or high speed switch 1
Since the low-speed mode signal or the high-speed mode signal is output to the controller 94 from 00, the determination result in step S12 is true (Yes), and the process proceeds to step S14.

In step S14, the fine movement brake flag stored in the memory in the controller 94 is reset. However, in this step S14, since the fine movement brake flag has not been set yet, the fine movement brake flag is maintained in the reset state, and the next step S14 is executed.
Proceed to 16. In step S16, it is determined whether or not the suction brake 24 is operating. Since the operation of the suction brake 24 is controlled by the controller 94 itself as described above, this determination can be made inside the controller 94 even without inputting a sensor signal. That is, the controller 94 always operates the suction brake 24 during the steady operation of the cigarette making machine,
The determination result in step S16 is true (Yes). After executing step S20 following step S18, step S10 and subsequent steps are repeatedly executed. In addition,
In step S18, the fine movement brake timer in the controller 94 is reset, and in step S20, the low / high speed brake timer is reset. However, in steps S18 and S20, these timers are simply reset because they have not been set yet. It just works.

As described above, during the steady operation of the cigarette making machine, the above procedure is repeated, and the suction brake 2
4 is always kept in operation. Next, when stopping the cigarette making machine from the low speed operation or the high speed operation, the stop control of the suction brake 24 is performed in the following procedure. In this case, the determination result in step S10 is false (No) as in the case of steady operation, but in step S12
Is false (No). That is, when a stop command is given to the cigarette making machine, the low-speed mode signal or the high-speed mode signal from the low-speed switch 98 or the high-speed switch 100 is canceled as described above, so that the process proceeds from step S12 to step S22.

In step S22, it is determined whether or not the suction brake 24 has stopped. In this case, since the suction brake 24 has not been stopped yet, the determination result in step S22 is false (No), and the process proceeds to step S24. In step S24, it is determined whether or not the fine movement brake flag is set. In step S24, since this flag has not been set yet, the determination result is false (No), and step S26 is performed.
Proceed to.

In step S26, it is determined whether the low / high speed brake timer has been set. In step S26, since this timer has not been set yet, the determination result is false (No), and step S28
Proceed to. In step S28, the low / high speed brake timer in the controller 94 is set and its operation is started. At this time, the timer value is set in the low / high speed brake timer, and at the same time, the measurement of the elapsed time thereafter is started. After the low / high speed brake timer is set, the controller 94 sets the suction brake 24
The timer value at this time, that is, the measurement time, is set to, for example, 5 seconds.

In step S30, it is determined whether the value of the low / high speed brake timer has reached the measurement time. If the determination result in step S30 is false (No), it is determined that the measurement time has not yet elapsed (for example, 5 seconds have not elapsed) since the low / high speed brake timer was set, and step S32 is executed. After the execution, the process returns to step S10, and step S10 and subsequent steps are repeatedly executed.
In step S32, the operation timer is reset.
Since the operation timer has not yet been set in step S32 this time, the operation timer is simply reset here.

In the next step S26, since the low / high speed brake timer has already been set, the determination result is true (Yes), and the routine proceeds to step S30. As long as the determination result in step S30 is false (No), the execution of step S30 is repeated through the above procedure. The determination result in step S30 is true (Yes), that is,
When the measurement time (for example, 5 seconds) has elapsed since the high-speed brake timer was set, the process proceeds to step S34.

In step S34, the controller 94 closes the valve box 52 to stop the operation of the suction brake 24 as described above, and then executes step S20 following step S18. Even if step S18 is executed, the fine movement brake timer has not been set yet, so that the reset is only repeatedly executed. In step S20, the low / high speed brake timer is reset and its operation is stopped.

In the next step S22, since the suction brake 24 has already been stopped, the result of the determination is true (Yes), and after step S32, step S10 and subsequent steps are repeatedly executed. At this time, the operation timer has not been set yet, and in step S32, the operation timer is simply reset. in this case,
The controller 94 performs steps S10, S12, S2
Steps S2 and S32 are simply repeated, and this continues until the main power of the cigarette maker is turned off.

As described above, the controller 94
, The suction brake 24 is always operated when the cigarette making machine is in a steady operation state. As a result, an appropriate tension is applied to the wrapping paper P supplied to the wrapping tube section 18. When a stop command is given to the cigarette making machine, the controller 94 stops the operation of the suction brake 24 after a lapse of a predetermined time, for example, 5 seconds. When the cigarette making machine receives the stop command, the driving drum 16 is cut off its power supply and its rotation speed is gradually reduced. At this time, the running speed of the garniture belt 12 is also reduced accordingly. Therefore,
The force that pulls the wrapping paper P into the winding tube section 18 decreases as the running inertia of the garniture belt 12 decreases. On the other hand, the suction brake 24 always applies a constant braking force to the traveling of the wrapping paper P against the pulling-in force of the garniture belt 12 during the steady operation, but this braking force is for applying tension to the wrapping paper P. The force is sufficiently smaller than the pulling force of the garniture belt 12. However, as described above, when the pull-in force of the garniture belt 12 is reduced and the two are balanced, the wrapping paper P must stop completely. At this time, from the viewpoint of the driving system including the driving drum 16 and the garniture belt 12, the rotation / running motion due to the inertia of the wrapping paper P must be completely stopped by stopping the running of the wrapping paper P. However, in practice, the tensile strength of the wrapping paper P as a strength member cannot withstand the braking force at this time, and the wrapping paper P may be broken between the suction brake 24 and the winding tube section 18. Therefore, in order to prevent the wrapping paper P from breaking, the controller 94 needs to stop the suction brake 24 before a predetermined time elapses after a stop command is given to the cigarette making machine. From this stop command, suction brake 2
If the time until the stop of No. 4 is stopped, that is, the time set in the timer value of the low / high speed brake timer is too long, the suction brake 24 is operated until the pulling force of the garniture belt 12 and the braking force of the suction brake 24 are balanced. As a result, the wrapping paper P is broken, and if the set time of the timer value is too short, the wrapping paper P is undesirably loosened. Therefore, the timer value must be appropriately set based on the time required until the pulling force of the garniture belt 12 and the braking force of the suction brake 24 are balanced.

Next, an operation control procedure of the suction brake 24 executed by the controller 94 during the start-up operation of the cigarette making machine, that is, in the fine operation mode will be described. Before the operation of the cigarette making machine is started, the controller 94 holds the suction brake 24 in a stopped state before executing the routine shown in FIGS. 4 and 5. That is, before the operation of the cigarette manufacturing machine is started, when the operator sequentially winds the winding paper P around the rollers of each part of the winding paper supply path while pulling the winding paper P from the winding paper roll and guides it to the winding tube section 18, the operation of the suction brake 24 is performed. Must be stopped. And the wrapping paper P is the garniture belt 1 of the winding tube section 18.
When the setting is completed, the cigarette making machine can start the fine movement operation.

When a fine movement operation command is given to the cigarette making machine and the fine movement operation is started, the controller 94
Starts execution of the suction brake control routine of FIGS. 4 and 5, and controls the operation of the suction brake 24 in the following procedure. First, in step S10, it is determined whether or not the cigarette making machine is in the fine operation mode.
At this time, since the fine movement mode signal is supplied from the fine movement switch 96 to the controller 94, the determination result in step S10 is true (Yes), and the process proceeds to step S36.

In step S36, the fine movement brake flag in the controller 94 is set. Step S16
Then, it is determined here whether the suction brake 24 is operating. In this case, the suction brake 2
Since No. 4 has not been operated yet, the determination result here is false (No), and the process proceeds to step S38.

In step S38, it is determined whether or not the operation timer of the suction brake 24 has been set. In this case, since the operation timer has not been set yet, the determination result here is false (No), and step S4
Go to 0. In step S40, the operation timer in the controller 94 is set and the operation is started. The operation timer is for measuring the time from the start of the fine movement operation until the controller 94 starts the operation of the suction brake 24, and the timer value at this time is set to, for example, 1 second.

In step S42, it is determined whether or not the value of the operation timer has reached the measurement time. If the determination result is false (No), after the operation timer has been set and the measurement time (for example, 1 second) has yet been reached, step S20 is executed following step S18, and step S10 and subsequent steps are repeatedly executed. Is done. In the next step S38, since the operation timer has already been set, the determination result is true (Yes), and the process proceeds to step S42.

The determination result in step S42 is false (No)
, The steps up to this point are repeated, and step S42 is executed again. If the decision result in the step S42 is true (Yes), that is, after the operation timer is set,
When the value of the operation timer reaches the measurement time (for example, 1 second),
Proceed to step S44. In step S44, the controller 94 opens the valve box 52 to operate the suction brake 24, resets the operation timer (step S32), and repeatedly executes step S10 and subsequent steps.

Thereafter, since the controller 94 has already actuated the suction brake 24, the result of the determination at step S16 is true (Yes), and the process returns to step S10 via steps S18 and S20. As described above, when the fine movement operation mode of the cigarette manufacturing machine is performed, the controller 94 operates the suction brake 24 after a predetermined time has elapsed from the start of the fine movement operation. That is, by executing this control procedure, the suction brake 24 can be actuated after the pulling force of the wrapper P by the garniture belt 12 becomes sufficiently large after the start of the fine movement operation mode. Suction brake 24 at this time
, That is, the timer value of the operation timer must be appropriately set based on the time required for the pull-in force of the garniture belt 12 to rise.

When the suction brake 24 starts operating as described above after the fine movement operation is started, the start-up operation of the cigarette making machine is completed. Thereafter, when a command in the low-speed operation mode or the high-speed operation mode is given to the cigarette manufacturing machine, the fine movement operation command is released and the manufacturing machine shifts to a steady operation state. The control procedure executed by the controller 94 in this case is the same as the procedure at the time of the steady operation described above.
The fine movement brake flag once set in step S36 after the start of the fine movement operation is reset in step S14 executed after the start of the low speed operation or the high speed operation.

Next, for example, after performing fine movement for a while due to the need for maintenance of the cigarette making machine,
A control procedure of the suction brake 24 when the fine movement operation is stopped without performing the steady operation will be described. The maintenance of the cigarette manufacturing machine is performed by stopping the operation of the cigarette manufacturing machine and then clogging each part of the manufacturing machine, for example, clogging of the cigarette paper P and the cut tobacco K in the winding tube section 18 and clogging of the tobacco rod R in the cutting machine 20. Is done to eliminate

In this case, the procedure for starting the operation of the suction brake 24 at a predetermined time after the start of the fine movement operation is the same as described above. When the operation stop command is given after performing the fine movement operation for a while, the controller 94 stops the suction brake 24 in the following procedure. Now, when the fine movement operation of the cigarette manufacturing machine is started and a stop command is given to the manufacturing machine after the controller 94 operates the suction brake 24, the fine movement mode signal from the fine movement switch 96 is canceled. The determination result in step S10 is false (No),
Proceed to step S12.

In this case, since the operation does not shift to the low-speed operation mode or the high-speed operation mode, the determination result in step S12 is false (No), and the process proceeds to step S22.
In step S22, since the controller 94 operates the suction brake 24, the determination result is false (No), and the process proceeds to step S24. Step S
At 24, since the controller 94 has executed step S36, the fine movement brake flag has already been set. Therefore, the determination result here is true (Yes), and the process proceeds to step S46.

In step S46, it is determined whether or not the fine movement brake timer is set. In the present step S46, since this fine movement brake timer has not been set yet, the determination result is false (No), and the flow proceeds to step S48. In step S48, the controller 9
The fine movement brake timer in 4 is set and its operation is started. At this time, the timer value is set in the fine movement brake timer, and at the same time, the measurement of the elapsed time thereafter is started. The fine movement brake timer is for measuring the time from when this is set until the controller 94 stops the operation of the suction brake 24.
The timer value at this time, that is, the measurement time is set to, for example, 4 seconds.

In step S50, it is determined whether the value of the fine movement brake timer has reached the measured time. Since the determination result in step S50 is false (No), that is, the measured time (for example, 4 seconds) has not yet reached since the fine movement brake timer was set, step S3 is performed.
After step 2, step S10 and subsequent steps are repeatedly executed.

Next, when step S46 is executed,
Since the fine movement brake timer has already been set, the determination result is true (Yes), and the flow proceeds to step S50. As long as the determination result in step S50 is false (No), step S50 is executed again through the procedure up to now. When the result of the determination in step S50 is true (Yes), that is, when the measurement time (for example, 4 seconds) has elapsed since the fine movement brake timer was set, the process proceeds to step S34.

In step S34, the controller 94 closes the valve box 52 to stop the suction brake 24, and then proceeds to step S2 following step S18.
0, and in step S18, the fine movement brake timer is reset and its operation is stopped. In the next step S22, since the suction brake 24 has already been stopped, the determination result is true (Yes), and step S10 and subsequent steps are repeated through step S32.

As described above, when the fine movement operation of the cigarette manufacturing machine is started and a stop command is given to the manufacturing machine while the suction brake 24 is operating, the controller 94 stops the suction brake 24 after a predetermined time has elapsed. Let it. By executing this procedure, the garniture belt 1 is changed in the same manner as when a stop command is given from the steady operation state.
The suction brake 24 can be stopped before the retraction force of No. 2 and the braking force of the suction brake 24 are balanced. The time from the stop command at this time to the stop of the suction brake 24, that is, the timer value of the fine movement brake timer is also the time required until the pulling force of the garniture belt 12 and the braking force of the suction brake 24 at this time are balanced. Must be set appropriately based on the

According to the wrapping paper supply device of the above-described embodiment,
The operation / stop of the suction brake 24 can be appropriately controlled in accordance with the operation status of the cigarette making machine.
That is, in any of the operating states of the cigarette manufacturing machine from the steady operation to the stop, the start of the fine movement before the start of the operation, and the stop after the start of the fine movement, the controller 94 stops and stops the suction brake 24. By controlling the operation, the braking force of the suction brake 24 does not become larger than the pulling force of the garniture belt 12.
Therefore, in any case, the wrapping paper P is not broken in the middle of the supply path 22, and the operability of the cigarette manufacturing machine and the ease of maintenance can be improved.

The present invention is not limited to the above embodiment. For example, the air cylinder 54 formed of a single-acting cylinder with a spring may urge the piston 72 by a compression coil spring housed in the chamber 74b thereafter. Further, it is also possible to control the operation / stop of the suction brake 24 by using the valve box 52 as an electromagnetic on-off valve and opening and closing this electromagnetic on-off valve by the controller 94.

[0054]

As described above, according to the roll paper supply apparatus of the first aspect, the roll paper supplied to the roll tube section can be stably tensioned during the operation of the cigarette making machine. In addition, the quality of the tobacco rod formed in the tube section can be improved. Also, if a stop command is given to the cigarette making machine after the cigarette making machine has started operation, the control means stops the suction brake, so that the tension applied to the cigarette is removed at this time, and the breaking of the cigarette in the middle of the supply path is performed. Can be reliably prevented.

According to the second aspect of the present invention, since the suction brake is not activated at the beginning of the operation of the cigarette making machine, the amount of the paper roll becomes excessive before the running of the paper roll in the paper supply path is stabilized. No tension is applied, and it is possible to prevent the wrapping paper from breaking at this time.

[Brief description of the drawings]

FIG. 1 is a diagram showing an outline of functions of a cigarette making machine.

FIG. 2 is an enlarged detail view showing a part of a wrapping paper supply path.

FIG. 3 is a diagram showing a supply path of suction pressure to a suction brake and an air cylinder.

FIG. 4 is a diagram showing a part of a suction brake control routine.

FIG. 5 is a diagram showing a part of a suction brake control routine.

[Explanation of symbols]

 18 Winding section 22 Supply path 24 Suction brake 52 Valve box 66 Valve body 94 Controller (control means)

Claims (2)

[Claims] 1. A roll paper supply path for guiding a roll of paper continuously fed from a roll of paper toward a roll tube section of a cigarette making machine, and a braking force applied to the travel of the roll of paper provided at an intermediate point of the roll paper supply path. An apparatus for supplying cigarette paper, comprising: a suction brake to be applied; and control means for stopping supply of suction pressure to the suction brake when an operation stop command is given to the cigarette manufacturing machine. 2. The method according to claim 1, wherein the control means starts supplying suction pressure to the suction brake after a lapse of a predetermined time from the time of the operation start command when the operation start command is given to the cigarette making machine. The paper supply device according to claim 1.