JP2824057B2 - Roll recording medium supply device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a recording medium such as paper wound in a roll.
Pull out the edge and cut it from the tip to the required length
To form a recording sheet of any length,
For the supply device of the roll-shaped recording medium to be supplied to the recording unit,
Device that performs a cutting operation while sending a recording medium to the
You. [Related Art] A roll-shaped recording medium is cut at a predetermined length to perform a paper feeding operation.
For example, Japanese Patent Application Laid-Open No. 56-7857 and
It is disclosed in JP-A-59-17454. This kind of conventional
Paper feeder, the roll paper cutting stops the roll paper.
It is performed in a stopped state. This is done for the following reason. That is, roll paper
The cutter that cuts the roll is in the feed direction of the roll paper.
Are arranged at right angles to the width direction of the roll paper.
The cutting point moves at a predetermined speed from one end to the other
Therefore, especially when cutting when the roll paper is moving,
The cutting axis is inclined with respect to the axis where the cutter is placed.
Cut diagonally. That is, as shown in FIG.
Set the width of the paper PAP to W, the roll paper feed speed to vf,
If the moving speed of the break point is vc, one end of the cut side and other
Regarding the feed direction of the roll paper between the end and the next (1)
A position shift D shown by the equation occurs. D = vf · W / vc (1) As can be seen from equation (1), the roll paper feed speed vf is
If it is zero, that is, if the roll paper feed is stopped
Then, since the displacement D becomes zero, no oblique cut occurs.
No. However, recent recording devices that perform high-speed recording operation
The paper feed operation must also be made faster in the installation. For example, paper
If the feed speed is about 200 mm / sec,
There is not enough time to stop it. Japanese Patent Application Laid-Open No. 55-90296 discloses that a mask on a running sheet is used.
Detected the rotation of the rotating blade and is proportional to the running speed of the sheet.
Rotate at speed to cut the sheet at right angles while traveling
Technology is presented. According to this, the speed detection of the seat
Of the rotary blade drive speed (command value) based on the
Calculation, and the rotation drive of the rotary blade corresponding to the command value,
If everything is high and accurate, the sheet is cut at right angles
Refused. [Problems to be Solved by the Invention] However, based on the detection of the sheet speed and the detected speed,
Of rotating blade drive speed (command value) and command value
Error in each of rotary blade rotation drive corresponding to
Is inevitably present, so that the cutting line is
It will help. This angle shift is caused by the above-mentioned electric system error.
Sheet feed mechanism and cutter
-Mechanism design error, dimensional error or mounting position error
Displacement). Example of cutting with a cutter while feeding roll paper
For example, due to variations in dimensions during machining,
The diameter of the feed roller that pulls out the paper in a belt shape varies
Even if the rollers are driven at the same speed,
The actual transport speed of the roll paper by the roller
Causes variations in the position. In addition, the size variation during machining
Due to this, the inclination of the cutter assembly varies with each device.
Paper feeding by feeding the roll paper
The direction also varies. These variations are
This results in a line angle shift. The present invention is applicable to fluctuations in the feeding speed of a roll-shaped recording medium.
Nevertheless, the first is to make the cut substantially at right angles.
This makes it possible to adjust the cutting line to a right angle
A second object is to facilitate adjustment. [Means for Solving the Problems] (1) A supply device for a roll-shaped recording medium according to the present invention comprises: a roll-shaped recording medium (11);
Feeding means (12,16, M1) for feeding out to the transport path of the vehicle; means for detecting the feeding speed (ENC, 74); input means (VR3) for manually setting the adjustment value
~ VR1); The target feed speed is detected by the feed speed detecting means.
Feeding speed and the input means (VR3 of VR3 to VR1)
Corresponding to the set feed speed adjustment value
The feeding speed detected by the feeding speed detecting means is equal to the target speed or the target speed.
And the speed adjustment value.
Feeding drive means (220) for driving the means; a recording medium disposed on the transport path and fed out;
From one end to the other along an axis substantially perpendicular to the feed direction of
Includes rotary blade (1) for cutting toward
Make a predetermined angle to the axis perpendicular to the recording medium feed direction.
Cutting means (13); blade driving means (M2) for rotationally driving the rotary blade; rotary blade speed setting means for setting the rotational speed of the rotary blade
(Line 74 / VR2); and when the feeding means is feeding a recording medium.
The rotary blade is driven by the rotary blade speed via the blade drive unit.
Means for rotating at a speed set by the setting means (230);
Is provided. In order to facilitate understanding, the figures in parentheses are
The symbols of the corresponding elements of the embodiment shown and described below are attached for reference.
Noted. The vector Dir of the cutting line is, as shown in FIG.
The vector vf indicating the paper feed and the movement of the cutter cutting point
Vector vc can be represented as a composite vector
You. Therefore, the vector Dir of the cutting line is
Tilt by an angle θ with respect to the direction. Angle θ depends on the magnitude of vf
Determined according to the size of the vc. Here, if the angle θ is constant
If the direction of the vector vc is orthogonal to the direction of vf
By tilting it by an angle equivalent to θ in advance.
The direction of the cutting line vector Dir and the direction of the vector vf
Can be directed in a direction orthogonal to. That is, the cutting line
Tilt the cutter in the opposite direction to that of
Therefore, even when cutting while feeding the roll paper,
It is possible to prevent the cutting line from being inclined. However, the angle θ is determined by the two vectors vf and vc.
So one of these vectors changes
The angle θ changes, and the inclination of the cutter does not match the angle θ.
It becomes. Cutters at a specified ratio to the roll paper transport speed
By setting the rotation speed of the rotary blade,
Can be treated. However, it is proportional to the roll paper transport speed
The rotation speed of the rotary blade to the speed
Even if is set to a value that gives a right angle disconnection,
Variations in the mechanical mounting position of the cutter,
Due to variations in the diameter of the rollers, deviations in the transport direction of the roll paper, etc.
The cutting line may deviate from a right angle. However, in the present invention, as described above, the adjustment value is manually adjusted.
Input means for setting (VR3 to VR1);
Target speed, the feeding detected by the feeding speed detecting means
Set by speed and the input means (VR3 of VR3 to VR1)
The payout speed detection value corresponds to the supplied payout speed adjustment value.
The delivery speed detected by the delivery means is the target speed and the speed.
Drive the feeding means so that the value corresponds to the adjustment value.
Moving feed drive means (220);
Adjusting the cutting line at right angles by adjusting the adjustment value by force
Can be. That is, the rotation speed of the rotary blade (1) is changed.
Do not use the input means (VR1 of VR3 to VR1)
When the setting is changed, the feeding speed of the recording medium changes accordingly.
The angle of the cutting line changes accordingly. Accordingly
The speed adjustment value using the input means (VR1 of VR3 to VR1).
What is necessary is just to set to the value which makes a disconnection a right angle. This is mechanical
Unlike dimensional adjustment and position adjustment, it is easy and
Wear. [Embodiment of the invention] (2) The rotary blade speed setting means (74 / VR2 line)
The feeding speed detected by the feeding speed detecting means (ENC, 74)
Set the ratio of the rotation speed of the rotary blade (1) to the degree
You. According to this, the angle of the cutting line is determined by the ratio.
You. This ratio may be set to a value at which the angle becomes 90 degrees.
No. In this embodiment, the angle of the cutting line depends on the ratio.
Set by the input means (VR1 of VR3 to VR1)
The speed adjustment value is the adjustment value of the feeding speed of the recording medium.
And does not affect the angle of the cutting line. For example, target speed and actual
Offset (steady-state error) between the feeding speeds
If this results in a feed speed error, the input means (VR3
~ VR1 VR1) to set the speed adjustment value and the offset to substantially zero
Setting the actual feed speed correctly.
It becomes the standard speed. (3) The rotary blade speed setting means (74 / VR2 line)
The base value is set by the input means (VR2 of VR3 to VR1).
The value obtained by adding the obtained ratio adjustment value is set as the ratio. (4) The input means (VR3 to VR1) adjusts the feeding speed.
Set the third variable resistor (VR3) to set the value and the ratio adjustment value
Includes a second variable resistor (VR2) to set. According to this, the contrast is made by the input means (VR3 of VR1 to VR1).
By adjusting the integer value, the cutting line can be set at a right angle.
This is easy, unlike mechanical dimensioning and positioning.
You can do it anytime. Moreover, the target speed and the actual feeding
Offset (steady-state error) between
If a paper speed error occurs, input means (VR1 of VR3 to VR1)
Set the speed adjustment value to a value that makes the offset substantially zero.
If it is set, the actual feeding speed will be the correct target speed.
You. (5) The rotary blade speed setting means (74 / VR2 line)
A fixed resistor and a second variable resistor (VR
2) and the feeding speed detecting means (ENC, 7)
4) A speed signal indicating the feeding speed detected by
A series resistor circuit; said rotary drive means (230)
Is the rotary blade (1) via the blade drive means (M2).
The speed signal generated by the series resistor circuit,
The motor is driven to rotate at a speed corresponding to the proportional signal determined by the ratio. According to this, the cutting angle determined by the base value (for example,
(Design value is 90 degrees) is shifted from the right angle.
Adjust the arrester (VR2) to set the cutting line at a right angle
it can. This is different from mechanical sizing and positioning.
Is easy and can be done at any time. (6) The input means (VR3 to VR1) is used for rotating the rotary blade (1).
Including the first variable resistor (VR1) for setting the adjustment value of the rotation speed
The rotary blade speed setting means (74 / VR2 line)
The supplied adjustment value is compared with the feeding speed detection determined by the ratio.
Speed proportional to the feeding speed detected by the feeding means (ENC, 74)
The rotary blade is driven to rotate at a speed added to the degree. According to this, a speed signal indicating the payout speed and a speed signal
And the rotation for the speed specified by the signal corresponding to said ratio
The offset (stationary deviation) of blade (1) is determined by the first variable resistor
It can be compensated by adjusting (VR1). For other objects and features of the present invention, refer to the following drawings.
It will be clear from the description of the embodiment. [Embodiment] FIG. 1 shows a paper feed of a recording apparatus of one type embodying the present invention.
Indicates a part. Referring to FIG. 1, this device has three sets of supplies.
Paper mechanisms 10, 20, and 30 are provided. In the paper feed mechanism 10,
Roll paper 11 loaded on the rotating shaft 15
Feed roller 16, the pinch roller 1 facing the roller
2, Cutter assembly 13 for cutting the fed roll paper 13, Pull
Out rollers 14 and so on are provided. Roll paper rotation shaft 15, feed roller 16 rotation shaft and
Each of the rotating shafts of the cutter assembly 13 has an electromagnetic
Rake BRK, electric motor M1 and electric motor M2 combined
I have. The pull-out roller 14 is connected to an electric motor (not shown).
Therefore, it is driven in synchronization with the recording operation. Similarly, the paper feed mechanisms 20 and 30 also have roll papers 21 and 31,
Rollers 26, 36, pinch rollers 22, 32, cutter assembly 23, 33,
Pull out rollers 24, 34, etc. are provided. Note that this
In the example, feed rollers 16, 26 and 36 each have an independent
The electric motor is connected and the cutter assemblies 13, 23 and 33 are
An independent electric motor is connected. Downstream of the pull-out rollers 14, 24, 34, a number of transport rollers
A vertical transport mechanism including rollers 41 to 45 is provided. Vertical transfer machine
A registration roller 46 is provided downstream of the structure. 47 is written
This is a photosensitive drum used for a recording operation. 2a, 2b and 2c show the cutter assembly 13 of FIG.
The structure of is shown. Referring to each figure, the cut assembly 13 is low
Rotary blade 1 which is a tarry cutter and is arranged to face each other
And a fixed blade 2. The blade 1a of the rotary blade is
Are arranged diagonally (spirally) with respect to the
The point of engagement between the blade and the fixed blade 2, ie, the cutting point, is determined by the rotation of the rotary blade.
Move from one end of the rotating shaft to the other depending on the position.
You. The cutting is completed within one rotation of the rotary blade 1. Rotary blade 1
Shaft 3 connected to the drive shaft of electric motor M2
Have been. The cutter assemblies 23 and 33 have the same configuration as the cutter assembly 13.
It has become. Figures 2d, 2e and 2f show the rotary cutter
An example of the state of cutting paper is shown. However, between the rotating blade and the fixed blade
Note that the positional relationship is reversed from FIG. 2c. By the way, while feeding the roll paper,
When the roll paper is cut, the cutting point is
The position of the roll paper is changed from one end to the other end.
As it moves in the feed direction, the cutting line is as shown in Figure 8b
Be sure to make an angle with the direction (vc) of the axis of rotation of the cutter assembly.
You. However, in order to cut the roll paper,
When stopped, the time required for the paper feeding operation becomes longer. This inclination depends on the moving speed of the cutter cutting point and the roll paper
It depends on the feed speed. Therefore, in this embodiment,
Control to maintain a constant
The cutter is tilted in the opposite direction to that of the
Assemblies 13, 23 and 33 are fixed. This allows the roll
The actual cutting line of the paper should be perpendicular to the roll paper feed direction.
It matches the direction, and there is no diagonal cut. Referring to FIG. 1 again, the feed mechanism 10
Two sensor units between the roller 16 and the cutter assembly 13
Position where S31 and S41 are arranged and face the peripheral surface of roll paper 11
The two sensor units S11 and S21 are arranged in
The sensor unit S51 is arranged downstream of the
You. A similar sensor unit group is provided for the other paper feed mechanisms 20 and 30.
Equipped. FIG. 3a is a plan view showing the positional relationship between the sensors S31 and S41.
is there. Referring to FIG. 3a, the sensor unit S31 is low.
The sensor unit is located in the center of the paper
S41 is composed of four sensors. Sensor unit S31
Is a reflection type optical sensor,
To identify light reflectance and detect the type of roll paper
Used for The four sensors that make up the sensor unit S41
Each time, as shown in Fig. 3b, transport of roll paper PAP (part of 11)
It is placed on the paper guide 51 that constitutes the paper feed path.
You. In the vicinity of each sensor, a paper guide 51
The detection arm 53, which is tiltably supported by the shaft 54,
Each is arranged. Formed at the tip of the detection arm 53
The light-shielding piece 53a is used when the roll paper is on the paper guide 52.
Position where the sensor is shielded from light and is not shielded when there is no roll paper.
Is positioned. The devices of this embodiment have widths of 210 mm, 297 mm, 420 mm and 594 mm.
It is designed on the assumption that roll paper is used.
The center of each rolled paper coincides with the center line of the paper transport path
So that the four sensor units S41
Sensors have a distance of 105 m from the center line of the transport path.
m, 149mm, 210mm and 297mm
Have been. Therefore, the four sensors of the sensor unit S41
The combination of each state of the electrical signal output by
The sensor unit changes depending on the width of the roll paper
The width of the roll paper is identified by the electrical signal output by S41.
Can be The sensor unit, which is located opposite the peripheral surface of the roll paper 11,
SS11 is actually configured as shown in FIG. 3c.
You. Refer to FIG. 3c. Combined with the rotation axis of roller 62
The detection arm 61 is moved by a spring (not shown).
One end of the arm 61 is pressed against the peripheral surface of the roll paper 11.
The diameter of the roll paper 11 changes according to the remaining amount.
Therefore, the detection arm 61 tilts according to the remaining amount. A roller is provided on the peripheral surface of the roller 62 connected to the detection arm 61.
63, and a light-shielding plate 64 is fixed to the rotation shaft of the roller 63.
Is being worn. Therefore, according to the change in the remaining amount of the roll paper 11,
When the detection arm 61 is tilted, the roll 63 passes through the roll 62.
Rotates, and the position of the light shielding plate 64 changes. Movement of shading plate 64
The sensor unit S11 is disposed on the road. Sensyu
The knits S11 are arranged side by side in the movement direction of the light shielding plate 64
It is composed of five transmission optical sensors. Therefore, the five sensors constituting the sensor unit S11
The combination of each state of the electrical signal output by
Because it changes according to the remaining amount of 11, the sensor unit S11
The remaining amount of the roll paper 11 can be changed according to the electrical signal to be output.
Can be identified as either. The sensor unit S21 has a detection surface on the peripheral surface of the roll paper 11.
This is a reflection type optical sensor that is placed facing
Is used to detect the presence or absence of Peripheral surface of roll paper rotating shaft 15
Is colored black and the roll paper is white
The sensor unit S21 detects the presence or absence of roll paper
The level of the reflected light changes greatly. Therefore, the sensor
Depending on the level of the electric signal output from the unit S21,
The presence or absence of roll paper can be identified. The sensor units S51, S14, S24, S34 are at each position,
The presence or absence of paper on the transport path is detected. Sensor units S12, S22, S32, S42 and S5 of the paper feed mechanism 20
2, and the sensor units S13, S23, S33, S of the paper feed mechanism 30
43 and S53 are the sensor units S of the papermaking mechanism 10, respectively.
It has the same configuration and the same functions as 11, S21, S31, S41, S51.
doing. 4a and 4b show the sheet feeder of the apparatus shown in FIG.
1 shows an electric circuit. Referring to FIGS. 4a and 4b,
The control unit 100 includes three paper feed units 200 and 300 and
400 is connected. Paper feed units 200, 300 and 400
Control the paper feed mechanisms 10, 20, and 30, respectively, of FIG.
You. The paper feed control unit 100 includes a microprocessor 110,
Clock signal generator 115, read-only memory (ROM) 12
0, read / write memory (RAM) 125, serial communication controller
130, address decoder 135, timer 140, interrupt controller
Roller 145, input / output controller (I / O) 150, 155, multi
Plexa 160 etc. are provided. The paper feed control unit 100 is a serial communication controller.
The control unit of the recording apparatus (shown in FIG.
And a paper feed control unit from the control unit.
Feeding start instruction and feeding mechanism selection finger for knit 100
And the data including the roll paper cut length. The clock signal generator 115 includes a microprocessor 110,
Predetermined for serial communication controller 130, timer 140, etc.
Clock signal. Specifically, the timer 140 is controlled by the clock signal generator 115
Count the output 2.5MHz clock pulse, and
Request to the interrupt controller 145
Generate a signal. I / O controllers 150 and 155 respectively
Sets of three input / output ports PA, PB and P with eight ports
C is equipped. Each port can be either input or output
Can be used. In this example, each of the I / O controllers 150
All ports are used as output ports,
All ports of controller 155 are used as input ports.
Have been used. Each port of I / O controller 150 has 6 ports
Are commonly connected to terminals D0 to D5 of each paper feed unit 200, 300, 400.
The other two ports are selected by the multiplexer 160
The other three ports are connected to the signal line SEL.
Each is connected to the terminal FMON of each paper feed unit, and the other 3
Each port connects to the terminal RBON of each paper feed unit
And the other three ports are connected to the end of each paper feed unit.
Connected to child CMON. Each port of the I / O controller 155 has four ports
Are connected to the terminals WA to WD of the paper feed unit 200, and the other four
Ports are connected to the terminals WA to WD of the paper feed unit 300,
The other four ports are connected to the terminals WA to WD of the paper feed unit 400.
The other three ports are connected to each paper feed unit.
Connected to terminal PED, the other two ports are multiplexed
Connected to the signal line PAP0 of the
Connected to the signal line VOL of the multiplexer 160,
One other port is connected to the multiplexer 160 signal line.
Is connected to FSEN0 and the other port is multiplexed.
It is connected to the signal line CHM0 of the antenna 160. The three input terminals of the multiplexer 160
Terminals PAP, FSEN, CHM and VO of paper units 200, 300 and 400
Connected to 1-VO5. One set of three input terminals
Is selected according to the state of the signal line SEL, and
The input signal appears at the output terminal. For example, the first set
When the input terminal is selected, the output terminal PA
The same signals as the P, FSEN, CHM and VO1-VO5 signals
And appear on signal lines PAP0, FSEN0, CHM0 and VOL. 4c and 4d show the configuration of the sheet feeding unit 200.
You. Referring to FIGS. 4c and 4d, the paper feeding unit 200
Has a D / A (digital / analog) conversion circuit 210, servo
Control circuit 220, motor driver 230, analog comparison circuit 240
And so on. D / A conversion circuit 210 is composed of inverter Z1 and a number of resistors.
Digital signals applied to the input terminals D0 to D5.
Signal to an analog signal. D / A conversion circuit 210 outputs
The analog signal to be sent to the servo control circuit 220
Applied as a signal. Data applied to the D / A conversion circuit 210
Since the digital signal is 6 bits, in this example 64 types
A speed command signal can be generated. The servo control circuit 220 has an integrated circuit Z2 and
It has a transistor. The integrated circuit Z2
Contains most of the control elements needed to control the data
It is a bridging integrated circuit with the configuration shown in Figure 4e.
You. That is, the integrated circuit Z2 includes the waveform shaping circuit 71 and the buffer 7
2, level conversion circuit 73, F / V (frequency / voltage) conversion circuit 74,
Amplifier circuit 75, difference detection amplifier circuit 76, analog comparator 77, oscillation
Circuit 78 and the like are included. The electric motor M1 is connected to the output terminal of the servo control circuit 220.
Has been continued. The drive shaft of this electric motor M1 is
It is connected to the rotation shaft of the roller 16. This electric motor M1
Is a DC servomotor and its drive shaft is a rotary
-The encoder disk is connected. That disk
Rotation is detected by the transmission optical sensor ENC.
You. This sensor ENC has a light emitting diode and a phototransistor.
The disk is rotated by a predetermined amount.
One pulse signal is output each time. The signal output from the sensor ENC is the same as the rotation signal of the motor M1.
Then, it is fed back to the servo control circuit 220. This
Signal passes through the waveform shaping circuit 71 of the integrated circuit Z2 and undergoes F / V conversion.
Applied to the conversion circuit 74. To the output terminal of the F / V conversion circuit 74
Is a voltage corresponding to the rotation speed of the motor M1, that is, a speed feed.
The debug voltage appears. The difference detection amplifier circuit 76 has a D / A conversion
The voltage according to the speed command signal output by the conversion circuit 210 and the voltage
A voltage corresponding to the difference from the feedback voltage is output to comparator 77.
Power. The comparator 77 has a sawtooth wave output from the oscillation circuit 78.
Binary according to the magnitude of the voltage and the output voltage of the difference detection amplifier circuit 76
Output a signal. This binary signal is connected to integrated circuit Z2.
Power is amplified by the two transistors
ON / OFF control of energization of the motor M1. The rotation speed of the electric motor M1 is equal to the target speed (speed command signal
Response speed), the output of the difference detection amplifier circuit 76
The level increases and the binary signal appearing at the output of comparator 77
The duty of the motor increases and the level
The electric motor M1 is accelerated. Reverse
If the rotation speed of the electric motor M1 is higher than the target speed,
In this case, the output level of the difference detection amplifier circuit 76 decreases,
The duty of the binary signal appearing at the output of the comparator 77 is small.
And the energizing level of the electric motor M1 becomes smaller,
Electric motor M1 is decelerated. In any case, the speed of the electric motor M1 is the target speed.
Is controlled by the servo control circuit 220 to match
You. The electric motor M1 is driven by the 14th pin of the integrated circuit Z2.
ON / OFF control by signal applied to terminal FMON
You. The semi-fixed resistor connected to pin 1 of the integrated circuit Z2
Anti-armor VR3 adjusts the relationship between the speed command signal and the motor speed
Used to The electric motor M2 is connected to the output terminal of the motor driver 230.
It is connected. This motor M2 is a DC servo motor
There is no rotary encoder. Mo
Driver 230 is not as complex as integrated circuit Z2
However, a servo control circuit is provided. That is, the electric motor
The current flowing through M2 is detected by resistor R1, and the signal
To the base terminal of transistor Q2.
By adjusting the current flowing through the electric motor M2,
There is a circuit to stabilize the rotation. The electric motor M2 is driven by a signal applied to the terminal CMON.
On / off control is performed. In other words, the state of terminal CMON is low.
When the bell L is reached, the transistor Q1 turns off and the transistor
The transistor Q2 turns on, the transistor Q3 turns on, and the transistor
Since Q4 turns on, transistor Q4, electric motor M2 and
Connect one end (+ 24V) of the power line to the other via resistor R1.
Current flows to the end (GND: ground),
Data M2 is activated. The energizing level of the electric motor M2 is based on the base of the transistor Q2.
It changes depending on the level of the current flowing through the terminal. This example
Now, the output voltage of the variable resistors VR1 and VR2 and the terminal of the resistor R1
A current corresponding to the three slave voltages flows to the base terminal of Q1. One end of the variable resistor VR1 is grounded via a resistor,
At the end, the fixed voltage Vx generated by the three-terminal regulator
(+ 5V) is applied. Also, the variable resistor VR2 is
One end is grounded via a resistor, and the other end is the 11th of integrated circuit Z2.
Connected to pins. Pin 11 of the integrated circuit Z2
A voltage corresponding to the rotation speed of the air motor M1 appears. Follow
Therefore, the current flowing through the base terminal of transistor Q2 is variable.
It can be adjusted arbitrarily by resistors VR1 and VR2. Also,
Changes according to the rotation speed of the electric motor M1. As mentioned above, in this example,
Since the cutting is performed, the cutting line is inclined with respect to the axis of the cutter.
The cutter assembly 13 is tilted in the opposite direction
Of the cutter assembly matches the inclination between the cutting line and the cutter axis
The roll paper cutting line is
Then it becomes a right angle and the diagonal cut disappears. However, due to variations in dimensions during machining,
Since the diameter of the roller 16 varies, use the same electric motor M1.
Even when driving at a speed of
The transport speed of the roll paper at the time of
I will. When the cutting speed of the cutter is constant, transport of roll paper
If the speed changes, the inclination between the axis of rotation of the cutter assembly and the cutting line
Changes. Also, due to variations in dimensions during machining,
The inclination of the cutter assembly also varies among individual devices. However, in this embodiment, by the variable resistor VR3,
The relationship between the level of the speed command signal and the rotation speed of the electric motor M1
Since the engagement can be adjusted, variations in the diameter of the feed roller 16
Can be compensated for. Also, the variable resistors VR1 and VR2
Therefore, the speed of the electric motor M2 can be adjusted.
Cutting speed can be adjusted. In other words, the feed speed of the roll paper
Since both vf and cutting speed vc can be adjusted, cutter assembly
The inclination angle of the cutting line with respect to the axis of
You. Therefore, the dispersion of the size and position of each device is corrected.
The inclination between the axis of the cutter assembly and the cutting line.
Can be matched to the body tilt. Also, the paper feed speed can be determined by a speed change request on the recording device side or a paper feed speed.
It may be changed by changing the specifications of the entire paper device.
The feeding speed, that is, the rotation speed of the feed roller 16 changes.
When the cutting speed of the roll paper is constant, the axis of the cutter
And the inclination between the line and the actual cutting line change. Tilt of cutter assembly
Cannot be easily changed. But this example
The current corresponding to the rotation speed of the electric motor M1
The current flows through the base terminal of the
The driving speed of the data M2 changes. Specifically, the driving speed of the electric motor M2 is
It is controlled so as to be proportional to the driving speed of M1. Both proportional
If so, how does the drive speed of the electric motor M1 change?
Even when cutting, the axis of the cutter assembly and the actual
The inclination with the disconnection does not change. That is, the speed of the electric motor M1
Of the roll paper, even if the setting of the
The inclination between the cutting line and the cutter assembly is the same as the inclination of the cutter assembly itself.
There is no deviation, so there is no oblique cutting of the roll paper.
No. In addition, the rotation speed of the electric motor
The same applies to the case where there is a fluctuation in the degree. Change in driving speed of electric motor M1 and driving of electric motor M2
The ratio to the change in speed is determined by adjusting the variable resistor VR2.
More can be changed. The variable resistor VR2 is
Drive speed of motor M2 is proportional to the drive speed of electric motor M1
Is set at the time of adjustment. In this embodiment, the speed of the cutter driving motor M2 is
There are two variable resistors VR1 and VR2 to adjust
However, the speed signal voltage appearing at pin 11 of the integrated circuit Z2 is
If the offset voltage is not included, the variable resistor VR1
May be omitted. When the terminal CMON goes high, the transistor Q1 turns off.
Transistor Q2 turns off and transistor Q3 turns off.
As a result, the transistor Q4 turns off, and the energization of the electric motor M2 stops.
Stop. In this case, the transistor Q5 is turned on, and the transistor
Since transistor Q6 turns on, the voltage between the terminals of electric motor M2 starts.
The generated power is absorbed by the transistor Q6. Toes
Transistors Q5 and Q6 operate as a brake circuit
Therefore, if the drive of the electric motor M2 is stopped, sudden braking
You. However, the on / off control of the motor M2
And timing of on / off control of brake circuit
You. When the terminal CMON is at the high level H, the motor M2 stops and the motor M2 stops.
Rake circuits (Q5, Q6) are on. Terminal CMON low
When the level is L, the electric charge stored in the capacitor C2 becomes
Discharge immediately through the diode in the signal processing circuit 231
Therefore, the brake circuit is immediately turned off. Only
The electric charge stored in the capacitor C1 is transferred to the signal processing circuit 23.
Discharge through the series circuit of diode and resistor in 1
Therefore, it takes time to discharge. Therefore, set the terminal CMON low.
When set to bell L, the specified
When the time has elapsed, transistor Q1 turns off and the electric
Data M2 turns on. When the terminal CMON is set to the high level H, the capacitor C1
Is stored in the diode in the signal processing circuit 231.
Motor M2 turns off immediately because it passes through and discharges immediately
However, the charge stored in the capacitor C2 is
Discharges through a series circuit of a diode and a resistor inside
Therefore, it takes time to discharge. Therefore, motor M2 stops
After a lapse of a predetermined time, the transistors Q5 and Q6
Turns on, and the brake circuit of the motor M2 operates. The electromagnetic brake BRK is connected to the roll paper rotation shaft 15.
The brake is applied to the rotation of the roll paper 11. What
Although not shown, the terminals of the electromagnetic brake BRK and the control
A driver circuit is provided between the terminal and the terminal RBON. Referring to FIG.4d, each of the sensor units S11
Five transmissions consisting of light emitting diode and phototransistor
Type optical sensor, and the output terminal of each sensor
Are connected to terminals VO1-VO5. In addition, the sensor unit
The light emitting diode and the phototransistor are
It consists of four transmission optical sensors consisting of
The output terminal of the sensor is connected to the terminal WA-WD. C
The sensor units S51 and S61 each include a set of transmission optical sensors.
Output terminals are connected to terminals FSEN and CH, respectively.
Connected to M. Sensor unit S61 is a cutter assembly
It is a sensor for detecting the home position of thirteen rotary blades 1.
You. In addition, both the sensor units S21 and S31 are of the reflection type.
Optical sensor. Sensor unit S21 is bulb and sulfide
It consists of a cadmium (CdS) cell,
The unit S31 is composed of a light emitting diode and a phototransistor.
Has been established. The output terminals of the sensor units S21 and S31 are
Each is connected to the input terminal of the analog comparison circuit 240.
You. Inside the analog comparison circuit 240, the sensor unit S21
Generates a voltage corresponding to the resistance of the cadmium sulfide cell,
The voltage and the predetermined voltage are calculated by the operational amplifier OP2.
Compare. A binary signal corresponding to the comparison result is output to the terminal PED.
Appear. The state of this signal corresponds to the presence or absence of roll paper.
You. Also, the phototransistor of the sensor unit S31
The current is converted to a voltage, and the voltage is set to a predetermined voltage.
The pressure is compared by the operational amplifier OP3. That comparison
Two binary signals corresponding to the result are output via the transistor.
At one of the terminals PAP. In addition, the operational amplifier OP3
The input binary signal is inverted by the operational amplifier OP1,
The inverted signal is passed through the transistor to the terminal PAP.
Appear on the other. That is, one of the two terminals PAP is high.
When the level is low, the other is low and one is low
When it does, the other goes high. Level of these terminals
Corresponds to the type of roll paper detected by the sensor unit S31.
Will change. Specifically, the type of roll paper is plain paper
Terminal PA or tracing paper
The level of P is set binary. FIGS. 5a, 5b and 5c show the microphones shown in FIG. 4a.
4 shows the operation of the processor 110. Figure 5a shows the main processing,
Fig. 5b shows reception interrupt processing, and Fig. 5c shows timer interrupt processing.
is there. The reception interrupt processing is performed by the serial communication controller 13
Data is sent from an external device to 0 and the communication controller 1
30 issues an interrupt request to microprocessor 110
Executed when Timer interrupt processing is performed by timer 140
Generates an interrupt request to the microprocessor 110.
Executed when In this example, the timer 140
Interrupt requests are generated periodically at regular intervals
You. First, refer to FIG. 5A. When the power is turned on, initialization is performed.
Now. That is, the contents of the memory 125 are cleared, and various control
Knit 130, 140, 145, 150, 155, 160
And set the output port status to the initial status. to this
Therefore, the serial communication controller 130 communicates with the outside.
Is enabled, and the timer 140 outputs a signal every 1 msec.
Interrupt controller 145
Interrupt from serial communication controller 130 and timer 140
Control interrupt of microprocessor 110 according to request
Is set to Next, the state of the flag F fed is checked. This hula
F fed is a flag indicating whether the paper feeding operation is in progress,
Serial communication controller 130 Connects to the serial signal line.
External control device (hereinafter referred to as main control device)
Set to “1” by information sent from
The sensor S51 (or S52, S53) downstream of the roller detects the roll paper.
When reset, it is reset to "0". When there is no feed instruction from the main controller, F fed is “0”
And wait until it is set to "1". F fe
When d becomes “1”, the contents of the register UML are displayed on the signal line SEL.
And set terminal FMON to “0” (low level L: the same applies hereinafter).
Set. The contents of the register UML are sent from the main controller.
The upper, middle, and lower paper feed systems
Indicates which of (10,20,30) to select. This
And each signal line PAP0, FSEN0, CHM0 and VOL
Of the paper feed unit selected by the main controller
The child PAP, FSEN, CHM and VO1-VO5 signals appear. Also,
When the terminal FMON is set to “0”, the feed roller 16 (or 26,3
6) The driving of the electric motor M1 for driving is started. However
However, in the initial state, the speed command signal becomes zero speed.
ing. Here, the reception interrupt processing will be described with reference to FIG. 5b.
You. In this process, first, the content of the flag F fed is
And then perform data reception processing. This day
In the data reception processing, the reception in the serial communication controller 130 is performed.
Fetches the received data stored in the
Identify the information and flag F fed and
And various registers (including UML and cutting length registers)
Set the content. Main control of various information on the paper feeder side
Send to device. Immediately after a paper feed instruction is issued, the frog F0 becomes “0”,
The flag F fed is “1”. In this case, the register UML
Check the contents. If the contents of UML are 0, 1, and 2,
The signal lines SZ1, SZ2 and S are connected to the internal register (A), respectively.
Load the contents of Z3. That is, the selected paper feed mechanism
The information corresponding to the width of the loaded roll paper is registered in the register (A).
Is loaded. In this embodiment, the roll paper and the feed
In order to eliminate the slip between the rollers (16,26,36)
When starting to drive the feed roller, set the drive speed to
It gradually starts up in a step shape. Also,
The force required to change the speed at which paper is drawn
Since it is proportional to the mass, the magnitude of the acceleration is
Time required to start the drive speed if adjusted according to
Can be shortened to the extent that slip does not occur. The roll paper mass depends on its width, roll diameter and paper quality.
Change. Therefore, in this embodiment, the width of the roll paper,
Roll diameter (remaining amount), paper quality (type), and roll paper mass
Parameters Kw, Kv and Kp indicating the relationship with
This is stored in the ROM 120 as a table. In step SB9 of FIG. 5b, the data is loaded into the register (A).
Table of parameter Kw according to the roll width data
, And Kw corresponding to the content of (A) is stored in the register (A).
To load. The contents of register (A) are stored in register Rw.
Store. Subsequently, the contents of the signal line VOL are stored in the register (A).
And refer to the table of parameter Kv.
The Kv corresponding to the content is loaded into the register (A). (A)
Is stored in the register Rv. Further, the content of the signal line PAP0 is loaded into the register (A).
And refer to the table of parameter Kp, and the contents of (A)
Is loaded into the register (A). (A)
The contents are stored in the register Rp. Next, the contents of registers Rw, Rv and Rp are multiplied, and the result is
Load into register (A). And mass and acceleration para
Refer to the table that stores the relationship with the meters Mp and Np in advance
Then, the parameters Mp and Np corresponding to the contents of (A) are obtained.
You. The contents of parameters Mp and Np are
Store in Rm and Rn. Speed command information Dv corresponding to the feed roller drive speed
Are shown in FIG. Referring to FIG. 7, the speed command
The information Dv has a period of time corresponding to the contents of the register Rm, and
Only the contents of the register Rn are integrated and updated. That is,
The acceleration characteristics of the feed rollers depend on the contents of registers Rm and Rn.
To drive to a steady speed.
The rise time to reach also varies. In this example, for example, the roll width is 594 mm and the roll diameter is
Bell 5 (maximum), if the paper type is tracing paper,
The rise time is set to be 500msec,
Roll width is 420mm, roll diameter is level 2, paper type is plain paper
In this case, the rise time is set to 117 msec. This rise time is proportional to the calculation result of Rw x Rv x Rp
I do. Thus, the acceleration characteristics are adjusted according to the mass of the roll paper.
Between the feed roller and the roll paper.
The magnitude of the applied force can be made substantially constant. The power is
If it is smaller than the size of the lip,
Even if the width, the remaining amount, and the paper type change, no slip occurs.
Set this force slightly smaller than the slip
By setting, the start-up can be performed within the range where no slip occurs.
To minimize the time required for
The required time can be shortened. Next, timer interrupt processing will be described with reference to FIG. 5c.
You. In this process, first, a counter CN1M for counting time is used.
Is incremented (+1). Next, the flag F fe
Check the status of d. If it is "1", that is, during the paper feeding operation, the counter CN1M
Is compared with the contents of the register Rm. When CN1M is over Rm
If there is, the value of the speed command information Dv is checked. If Dv has not reached the steady speed value Dmax,
Clear the contents of the counter CN1M to 0 and return to the speed command information Dv.
Dv is updated by adding the contents of the register Rn. And update
Output speed command information Dv to signal lines D0-D5.
You. In other words, timer interrupt processing is performed once every 1 msec.
The flag F fed becomes “1” because it is repeatedly executed
And the speed command information, the increment value (Rn
7) until the updated result reaches Dmax
Is updated step by step as follows. Flag F fed is “0”
Is reached, Dv is cleared to 0. Returning to the main processing of FIG. 5a, the time chart of FIG.
The description will be continued with reference to FIG. Flag F fed becomes “1”
Then, the signal (FMON) that instructs the drive of the feed roller is
Turns on (“0”) and sets the speed output to signal lines D0-D5.
The level of the degree command information gradually increases stepwise. One
In short, the driving speed is accelerated. Speed command information becomes Dmax
Then, the update of it ends, the acceleration drive mode ends, and the
The normal drive mode is set. Sensor unit located downstream of pull-out roller
When (S51, S52, S53) detects the roll paper, the signal line F
SEN0 becomes “1” (high level H: the same applies hereinafter). In that case,
Microprocessor resets flag F fed to “0”
Clears the counter CN1M to 0 and drives the feed roller
Set the signal (FMON) to “1” (off). Also, when the flag F fed becomes “0”, as shown in FIG. 5c.
In the timer interrupt, the speed command information is set to 0
Is done. When the flag F fed becomes “0”,
Proceed as follows. First, the content of the counter CN1M is set to time T1.
Compare with The counter CN1M sets the signal FSEN0 to “1”.
, That is, when the sensor S51 (or S52, S53)
Is cleared when is detected, so the time from that time
The interval is counted. The time T1 to be compared here is set in advance
The cutting line axis of the cutter assembly 13 and the sensor
Insert the time corresponding to the distance from the detection position of unit S51.
It is the time subtracted. Therefore, if the cutter is driven when CN1M becomes T1,
Roll paper can be cut at a set length. What
The recording paper length set here is determined by the main controller.
Is the same as the conventional roll paper feeder.
As described above, there are three modes for designating this. That is, the first
In this mode, the size of the original is detected and rolled according to the length.
Cut the paper (synchro cut mode), and in the second mode
Is selected by the operator among several standard sizes
Cut at the length of the set size, and in the third mode, use the numeric keypad.
Cutting at a length corresponding to the numerical value input by the user. When the content of the counter CN1M reaches T1, the cutter drive signal
Set (CMON) to “0” (ON). As a result,
The drive of the air motor M2 is started. The flag Fhm is set immediately after the cutter motor starts to be driven.
It is “0”. In this case, proceed to step SA9 to
Check the status of CHM0. And CHM0 becomes “0”.
Then, the flag F hm is set to “1”. Flag F hm
When it becomes “1”, the process proceeds to step SA10, where the state of the signal line CHM0 is set.
Check your condition. Then, when CHM0 becomes “1”,
Set the motor drive signal (CMON) to “1” (off) and set the flag
Reset F hm to “0”. That is, the cutter drive signal is
(CMON), after it is turned on,
Output signal (CHM0) of the system position sensor changes from “1” to “0”
Then, when it becomes “1” again, it is set to the off level “1”.
You. When the counter CN1M reaches T2, the roll brake
Signal (RBON) to “0” (ON). This
The electromagnetic brake BRK is energized to prevent the roll paper from rotating.
And braking. At time T2, the cutter motor M2 is driven.
Set to match the time when 80 msec has passed since the start.
(Ie, T2 = T1 + 80 msec). When the counter CN1M reaches T3, the roll brake
Set the ON signal (RBON) to “1” (off). Time T3
200 ms after the brake-on signal is set to “1”
(T3 = T2 + 200msec)
You. When the sensor S51 detects the trailing edge of the paper,
When the signal line FSEN0 becomes “0”, the ready flag Frdy
Set to “1”. The information on the ready flag Fry is mainly
Sent to the control device. As described above, in this embodiment, the sensor unit
When S51 detects the leading edge of the roll paper,
Stop the moving electric motor M1.
When cutting at a relatively long distance from the
Is cut while being driven by the pull-out roller 14.
It is. The drive system of the pull-out roller 14 is the feed roller 16
Of the cutter assembly in that case
The tilt between the cutting axis and the actual roll paper cutting axis is
Depending on the driving speed of the roller 14 and the cutting speed of the cutter assembly.
Is determined. However, the drive of the feed roller was stopped.
Even before the roll paper is cut, the roll paper may be moving.
The electric motor M1 also rotates at that speed,
The paper drive speed is detected by the rotary encoder ENC.
The speed feedback signal is output by the F / V conversion circuit 74.
Is converted to a number. And this speed feedback signal
Speed of the electric motor M2 that drives the cutter assembly
Adjusted dynamically. That is, the drive of the feed roller is stopped.
Even when stopped, the electric motor M2 for driving the cutter
Between the cutting axis of the cutter assembly and the cutting axis of the actual roll paper
The inclination matches the inclination set on the cutter assembly itself.
Automatically controlled. In the above embodiment, the electric motors M1 and M2 were driven.
Manual adjustment of the dynamic speed is performed by analog adjustment means (VR1, VR
2, VR3).
Using a stepping motor to convert it to a microcomputer
When controlling with a motor, etc.
Drive speed can be adjusted. For example, numeric keypad
Etc. are stored in the memory
Using the numerical value as a parameter,
With a configuration that adjusts the period of the applied pulse,
Speed can be adjusted. Also, if an A / D converter is used,
Convert the analog signal obtained at the resistor output to a digital signal
Conversion and the resulting value as a parameter.
Pulse cycle can be set.
Speed adjustment is also possible. In the embodiment, the proportional control of the speed of the motors M1 and M2 is performed.
Is realized by an analog circuit.
It can be replaced with a total control. For example, the above implementation
In the example, the main speed that appears on pin 11 of integrated circuit Z2
A / D converter converts signal to primary digital speed information
Microprocessor according to the value of the digital information
110 generates slave digital speed information, and converts the speed information into D / A
Converter converts it into a slave analog speed signal,
Deformation applied to the base terminal of transistor Q2
I just need. In case of digital control, DC servo mode
Also compare replacing M1 and M2 with stepper motors
Is simple. In the embodiment, the speed of the motor M2 is changed according to the speed of the motor M1.
Controlling speed but reversing these master-slave relationships
It is also possible. However, it is recorded on a recording system such as a copying machine.
In paper feeders that supply media, the speed of the recording system is
The motor (M
1) Mainly control of the motor (M2) that drives the cutter
It is preferable to make the speed control dependent. [Effects] As described above, according to the present invention, a roll-shaped recording medium is transported.
While you can cut it. Moreover, the adjustment value
Input means for manually setting (VR3 to VR1);
And the feeding target speed and the feeding speed detecting means detect
Feeding speed and the input means (VR3 to VR1)
According to the feed speed adjustment value set in 3),
The feeding speed detected by the feeding speed detecting means is equal to the target
Repeat the above so that the values correspond to the speed and the speed adjustment value.
Feeding drive means (220) for driving the feeding means;
So adjust the adjustment value by manual input and make a right angle to the cutting line.
Can be adjusted. That is, the rotation of the rotary blade (1)
Do not change the rotation speed and use the input means (VR1 of VR3 to VR1).
Change the setting of the speed adjustment value by
Since the exit speed changes, the angle of the cutting line changes accordingly.
You. Therefore, the speed is determined by the input means (VR1 of VR3 to VR1).
The adjustment value may be set to a value at which the cutting line is at a right angle. This
This is easy, unlike mechanical dimensional or position adjustment.
You can do it anytime.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing the vicinity of a paper feeding mechanism of a type of copying machine embodying the present invention. FIG. 2a is a left side view of the cutter assembly 13 of FIG. 2b is a left side view of FIG. 2a, and FIG. 2c is IIc-IIc of FIG. 2a.
It is a line sectional view. 2d, 2e and 2f are front views showing the cutting operation of a general rotary cutter. FIG. 3a is a plan view showing a positional relationship between the roll paper 11 and each sensor unit. FIG. 3b is an enlarged front view showing the configuration near the sensor unit S41. FIG. 3c is a front view showing the configuration near the sensor unit S11. 4a and 4b are block diagrams showing an electric circuit of the sheet feeding device. 4c and 4d are electric circuit diagrams showing the configuration of the sheet feeding unit 200. FIG. 4e is a block diagram showing the internal configuration of Z2 in FIG. 4c. FIGS. 5a, 5b and 5c are flowcharts showing the schematic operation of the microprocessor 110 in FIG. 4a. FIG. 6 is a timing chart showing an example of each signal of FIG. 4a. FIG. 7 is a timing chart showing changes in the speed command information Dv during acceleration. FIG. 8a is a vector diagram showing the relationship between the movement of the roll paper and the movement of the cutting point. FIG. 8b is a plan view showing the cutting position of the roll paper. 1: rotating blade, 2: fixed blade 3: shaft, 10, 20, 30: paper feeding mechanism 11, 21, 31: roll paper (recording medium) 12, 22, 32: pinch rollers 13, 23, 33: cutter assembly Body (cutting means) 14, 24, 34: pull-out rollers 15, 25, 35: rotating shafts 16, 26, 36: feed rollers (feeding means) 41 to 45: transport roller, 46: registration roller 47: photosensitive drum 51 , 52: paper guides 53, 61: detection arm, 64: light shielding plate 100: paper feed control unit 110: microprocessor 115: clock signal generator 120: ROM, 125: RAM 130: serial communication controller 140: timer 200, 300, 400: supply Paper unit 210: D / A conversion circuit, 220: Servo control circuit 230: Motor driver, 240: Analog comparison circuit BRK: Electromagnetic brake, ENC: Optical sensor M1: Electric motor M2: Electric motor S11 to S13, S21 to S23, S31 to S33, S41 to S43, S51, S61: Sensor units VR1, VR2, VR3: Variable resistors

──────────────────────────────────────────────────続 き Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B65H 23/192 B26D 1/62 G03G 15/00 522 B41J 15/04

Claims (1)

(57) [Claims] Roll-shaped recording medium; feeding means for gripping a part of the recording medium and feeding the leading end of the recording medium to a predetermined transport path; means for detecting a feeding speed; input means for manually setting an adjustment value; Corresponding to the payout target speed, the payout speed detected by the payout speed detecting means and the payout speed adjustment value set by the input means, the payout speed detected by the payout speed detecting means becomes the target speed and the speed adjustment value. Feeding drive means for driving the feeding means to have a corresponding value; arranged on the transport path, for cutting the fed recording medium from one end to the other along an axis substantially perpendicular to the feeding direction. Cutting means for making a predetermined angle with respect to an axis perpendicular to the feeding direction of the recording medium; Drive means; rotary blade speed setting means for setting the rotational speed of the rotary blade;
And a means for rotating the rotary blade via the blade driving means at a speed set by the rotary blade speed setting means when the feeding means is feeding the recording medium. apparatus. 2. 2. The roll-shaped recording medium supply device according to claim 1, wherein the rotating blade speed setting unit sets a ratio of a rotation speed of the rotary blade to a feeding speed detected by the feeding speed detecting unit. 3. 3. The roll-shaped recording medium supply device according to claim 2, wherein the rotary blade speed setting unit sets a value obtained by adding a ratio adjustment value set by the input unit to a base value to the ratio. 4. 4. The roll-shaped recording medium supply device according to claim 3, wherein said input means includes a third variable resistor for setting a payout speed adjustment value and a second variable resistor for setting a ratio adjustment value. 5. The rotary blade speed setting means is a series resistor circuit in which a fixed resistor providing the base value and a second variable resistor are connected in series, and a speed signal indicating a feeding speed detected by the feeding speed detecting means is applied. The rotation driving means rotationally drives the rotary blade via the blade driving means at a speed corresponding to a proportional signal generated by the series resistance circuit and determined by the speed signal and the ratio. 5. The supply device for a roll-shaped recording medium according to 4. 6. The input means includes a first variable resistor for setting an adjustment value of the rotation speed of the rotary blade; the rotation blade speed setting means converts the input adjustment value to the feeding speed detection means determined by the ratio. The supply of the roll-shaped recording medium according to claim 1, 2, 3, 4, or 5, wherein the rotary blade is rotationally driven at a speed in addition to a speed proportional to a feeding speed detected by the rotating blade. apparatus.