JPS5815416B2 - Recording body movement control device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a record that records information (information is printed so that it can be seen visually, or is magnetically recorded so that it cannot be seen visually).
When the is moved between the reels (take-up reel and feed reel), the recording body is moved to the desired position (the display position where the information on the recording body is displayed to the outside, or the position of the detection element and the reading element position of that information). This invention relates to a recording medium moving device that can be stopped at any time.

For example, each key in a group of data keys is defined by a record displaying the names of various items of data to be input, and a number of pages are provided with the names of various items whose definitions can be changed, and by selecting this page, In an input device that can input various data by changing the definition of each key, the recording body is moved between reels by a drive mechanism and the designated target page is stopped at a predetermined position for key definition. It is something that makes you feel good.

In such a recording body moving device, the present invention controls the running of the recording body by controlling the drive on the winding side from the rotational state of the feed reel side, and thereby, when the recording body is moved at high speed, the drive on the winding side is controlled. A control that applies a predetermined back tension to eliminate the fluttering of the recording medium during this running, and allows accurate winding onto the reel to accurately stop the designated information on the recording medium at a predetermined position. It's in the method.

Conventionally, in the above-mentioned input device, as shown in Figure i1,
The reels 2 and 3 are interlocked with drive motors 4 and 5, respectively, and the recording medium 1 is reel-driven between the reels 2 and 3.

For example, the recording body 1 is moved in the direction of arrow A by driving the drive motor 4 (stopping the drive motor 5) and winding up the recording body 1 with the reel 2 (the reel 3 is used as a feed reel). By driving the drive motor 5 in the opposite direction, the recording medium 1 is moved in the direction of arrow B.

6.7 indicates a guide roller.

Then, when the recording body 1 is moved, each page of each key definition item page written on the recording body 1 is read by an optical reading device consisting of a light emitting element 8 and a light receiving element 9, and by reading the target page, the driving machine In this case, in order to select the target page of the recording medium in a short time, the recording medium is moved at high speed. A certain amount of back tension is required on the side reel.

For this reason, a brake drum attached to the reel shaft on the feed side presses a brake band to brake the feed reel and provide back tension.

However, due to the fact that the recorder is run at high speed, the brake band is severely damaged, and since the lifespan of this brake band is short, there is a problem that repairs such as replacement are required frequently. This had a serious defect in that the running properties of the band changed over time, causing the stop position to shift.

Furthermore, since the brake mechanism is operated to control the stop after the stop position is detected (after the target page is detected), the diameter of the reel changes isometrically according to the amount of recording material to be wound, and the speed changes. Since this occurs and the inertia of the reel is also changing, the stop positions at the beginning and end of the reel are different, and the reel also deviates from the stop position.

The present invention provides a movement control of a recording bed that solves the above-mentioned various problems, and the present invention will be described below with reference to an embodiment of the drawings.

The embodiment shown in the figure relates to the above-mentioned input device, and FIG. 2 is a configuration diagram of the mechanism.

In FIG. 2, 21 is a meeting recorder, and reel 22.
The reel is driven between 23.

The recording body 21 has a large number of pages with columns for names of various items as pages, and therefore a stop position timing manic TM having a page code PC and a constant length l is provided corresponding to the name column. .

24 is an up-side monitor that drives the reel 22 to move the recording medium 21 in the direction in which the number of pages increases;
25 is a down-side motor that drives the reel 23 and moves the recording medium 21 in the direction in which the number of pages decreases.

Motor pulleys 26, 27 are attached to the rotating shafts of these motors 24, 25, respectively, and driven pulleys 28, 29 are attached to the rotating shafts of the reels 22, 23, and these motor pulleys 26, 27, driven pulleys 28, 2
Belts 30 and 31 are suspended between motors 24 and 9, respectively.
25 rotations are transmitted to the corresponding reels 22, 23, respectively.

Reference numerals 32 and 33 denote brake drums that extend from the driven pulleys 28 and 29 and are respectively attached to the rotating shafts of the wheels 22 and 23, and the drums 32 and 33 are equipped with brake bands 34 and 35, respectively. .

One end of the brake bands 34, 35 is fixed to a brake fixing shaft 36, 37, and each brake drum 3
2.33, and the other end is attached to one end of the brake levers 38, 39.

Brake levers 38 and 39 are respectively pivoted p4Q.

41 as a fulcrum, and by moving one end of the levers 38, 39 on which the bands 34, 35 are attached up and down, the brake bands 34, 35 can be wrapped around the drums 32, 33 to provide braking. , perform this release.

Further, one end of these levers 38 and 39 on the band mounting side is always connected to the brake band 3 by springs 42 and 43.
4 and 35 are energized in the direction of winding them around the drums 32 and 33 and applying braking.

Reference numeral 44 denotes a solenoid, and the bands 34, 35 of the brake levers 38, 39 described above are connected to this plunger 44A.
The other end sides opposite to the mounting side are connected to each other.

Therefore, the solenoid 44 is energized and the plunger 4 is energized.
4A is attracted, and one end of the brake levers 38 and 39 is rotated in a direction against the springs 42 and 43, respectively, and the brake bands 34 and 35 are released from the brake drums 32 and 33 to release the brake.

Furthermore, when the energization to the solenoid 44 is stopped, the spring 42
, 43 are rotated in this biasing direction, and the mibuhiniki bands 34 and 35 are wound around the pre-niquitrams 32 and 33 to apply braking.

In FIG. 2, when moving the recording medium 21 in the arrow direction A, the up motor 24 is driven (the down motor 25 is used) to operate the reel 22 as a take-up reel and the reel 23 as a feed reel. .

When the recording body 21 is moved in the opposite direction to the direction of arrow A, the down-E knife 25 is driven (the up motor 24 is stopped), and the reel 23 is operated as a take-up reel and the reel 22 is operated as a feed reel.

On the other hand, in a braking operation, when the recording body 21 is moving in the direction of arrow A, when the solenoid 44 is de-energized and braking is applied, the brake drum 32, the brake band 34, the brake drum 33, and the brake Regarding the relationship between the bands 35, on the former side, the brake band 34 escapes from the rotation of the drum 32, and on the latter side, the brake band 35 bites into the rotation of the drum 33; The braking force is stronger in the latter than in the latter, and the take-up reel 2 is applied to the reel 23 on the feeding side.
2, stronger braking is applied to the recording medium 21, thereby stopping the recording medium 21 in a stretched state without causing any slack.

Even when the recording medium 21 moves in the direction opposite to the direction of the arrow A, stronger braking is applied to the feed-side reel 22 than to the take-up reel 23 in the same manner as described above.

Next, a control circuit for controlling the running of the recording medium 21 is shown in FIG. 3, and this control circuit will be explained.

The up motor 24 is driven by being supplied with +24V power when the transistor TR is turned on, and the down motor 25 is driven by being supplied with +24V power when the transistor TR4 is turned on.

Further, the up motor 24 and the down motor 25 can be driven by a changeover switch 45 that can be manually operated.

In other words, if the changeover switch 45 is connected to the contact point, the
When the power (2) is supplied to the up motor 24 and contact C is connected, +24V power is supplied to the down motor 25.

Normally, it is connected to contact a because it is automatically activated.

The above-mentioned solenoid 44 that controls the brake operation is Hi
The transistor TR7 is turned on by the on operation of the transistor TR15, which is turned on and off in response to the levels "L" and "0" of the gh signal H, and is energized (brake release), and at the same time, the transistor TR8 is turned on and its current is turned on. It maintains electricity.

46 is a triangular wave generator, and the triangular wave pulled up to the low speed reference voltage STL is supplied to an analog switch 47, and the triangular wave pulled up to the high speed reference voltage STH is supplied to an analog switch 48.

In other words, the low-speed reference voltage STL is pulled up to a reference level clamped by one divided resistor, and the high-speed reference voltage STH is pulled up to a reference level clamped by another divided resistor, and these STH
The mutual level of STL and STL is S as shown in Figure 5.
The relationship is TH>STL.

Although the STH and STL signals shown in FIG. 5 are shown as smooth signals for convenience, they are actually signals in which a triangular wave, which is the output of the triangular wave generator 46, is added to a clamped reference level.

This triangular wave is given as a reference for the subsequent voltage comparators 49.50, and has the effect of changing this reference level.
In other words, by adjusting the output of the motor 50, the motor is driven intermittently so that the motor can run at a constant speed when the motor is running at a low speed.

On the other hand, a controller (not shown) controls S low and High.
Various signals such as a speed instruction, a drive instruction, and direction instructions such as up and down are output.

The switching of the up and down direction instructions is performed by comparing the currently set page of the recording medium 21 with the designated target page.

In addition, when switching between High and Slow speed instructions, a high speed instruction is performed from the currently set page to the specified destination page, and in response to the detection of the stop position timing mark TM of the destination page, the high speed instruction is switched from High to Slow instruction. Become.

The analog switch 47 receives a signal S which is a Slow instruction.
The analog switch 48 is turned on when signal H is at level "L" to supply the low-speed reference voltage STL as the ST potential, and the analog switch 48 is turned on when signal H, which is a High instruction, is at level "L" and supplies the high-speed reference voltage STL as the ST potential. Supply STH.

Also, when a Drive instruction is given, the signal that is a High instruction is “
When the signal U, which is an up instruction, is "1" in "1", the Drive signal Dr is "0" in this state, and since it is an up instruction, the down instruction signal is "0", so the OR gate G1 is Both inputs are "0", so the transistor TR9 is turned on via the inverter (1), which turns on the transistor TR0 and supplies a power of 124V to the up motor 24.

At the same time, AND gate G2 becomes conductive and transistor TR1
4 is turned on, and as a result, transistor TR6 is turned off.

On the other hand, if the signal that is a High instruction at the time of a Drive instruction is rlJ and the signal that is a down instruction is "L", in this state the Drive signal Dr is at "0" and it is a down instruction, so the up instruction is Since the signal is at "0"', the inputs of the OR gate G3 are all "0", and therefore the transistor TR is connected through the inverter ■2.
10 is turned on, the transistor TR is turned on, and +24V power is supplied to the down motor 25.

At the same time, AND gate G4 becomes conductive and transistor TR1
3 is turned on, thereby turning off the transistor TR3.

49 and 50 are voltage comparators, and when the drive of the up motor 24 is stopped (when the reel 22 is acting as a feeder in FIG. 2), the voltage comparators 49 are pulled by the recording medium and the motor 24 is The electromotive force VOD generated by the rotation is compared with the ST potential described above, and if it is higher than the ST potential, "0" is output, and if it is lower, "1" is output.

This "1" output turns on the transistor TR1o, which turns on the transistor TR4 to enable the down motor 25 to rotate, and the "0" output turns off the transistors TR1o and TR4 to control the motor 25.

The same is true for the other 50, and the electromotive force VOD generated by the down motor 25 is simply compared with the ST potential.

The "1" output turns on the transistor TR9, which turns on the transistor TR1 to enable the up motor 24 to rotate, and the "0" output turns off the transistors TR9 and TR1 to control the motor 24. .

This system electromagnetically detects the state of the back tension acting on the feed reel, and when this back tension decreases, it controls the rotation of the drive reel, so that a predetermined back tension is always applied when the recording medium runs at high speed. It is controlled to do so.

Reference numerals 51 and 52 are flip-flops, and when the up motor 24 is in the driving state, the 81
It is set when the 0W instruction is given (Slow signal "1"), thereby turning off the transistor TR1□ and turning on the transistor TR2 for a predetermined time.

That is, when the 810W instruction is reached, the output of the inverter (4) becomes "0" and is input to the inverter 15 and the gate (Nant gate) G.

The output of this inverter becomes "L" and becomes the other input of gate G via an integrating circuit.

The input to this gate G5 is gradually raised by the integrating circuit, and therefore, immediately after the 810W instruction is input, both the input voltages of the gate G become "0" and the gate G becomes conductive, and then the integrating circuit When the input side via G rises to a predetermined level, G becomes non-conductive.

Therefore, the flip-flop 52 maintains the set state while the gate G5 is conductive, and during that time, the transistor TR1□ is turned on.

That is, when the 810W instruction is reached, the output of the inverter (2) becomes "0" and is input to the inverter (2) and the gate (Nant gate) G5.

This inverter. The output becomes "1" and becomes the other input of the gate G via the integrating circuit.

The input to this gate G gradually rises due to the integration circuit, and therefore, immediately after the 810W instruction is received, the power of both the gate and G becomes "0" and the gate G becomes conductive. Thereafter, the input side through the integrating circuit rises to a predetermined level, and the gate G becomes non-conductive.

From this, when the 810W instruction is given, the reference voltage of the voltage comparator 50 has been switched to the low-speed reference voltage STL, so the electromotive force VOD at high speed is sufficiently larger than the low-speed reference voltage STL, so the voltage comparator The output of 50 is "O", so immediately after the Sl-ow instruction, the gate G,
conducts, and the flip-flop 52 is held in the set state, during which time the transistor TR1□ is turned on.

Note that the flip-flop 52 is reset when the relationship between the inputs of the voltage comparator 50 becomes such that the electromotive force ■cD<low-speed reference voltage STL.

As a result, the up motor 24 is short-circuited by the ON operation of the transistor TR2, cutting off the power supply to the motor 24, and decelerating the motor 24.

This deceleration is delayed for a predetermined period of time until flip-flop 52 is reset.

On the other hand, 51 is the same as above, and is set when the down motor 25 is in the driving state and the instruction is 810W, and turns off the transistor TR11 and turns on the transistor TR for a predetermined time, thereby causing the motor 25 to operate at a predetermined level. Only time is short-circuited.

In the figure, ■3. ■4 and ■5 are inverters, G is a gate, R1, R2, R3 and R4 are resistors, D, , D2
゜D and D4 indicate diodes.

The operation shown in FIG. 3 will be explained together with the time charts shown in FIGS. 4 and 5.

FIG. 4 shows an outline of the overall operation, and when the recording medium '21 is moved to the target position,
The live signal Dr and the high signal H are set to "1".

For this reason, the recording medium is run at high speed, and each page is read and counted sequentially.

When the target page is reached, the tip of the stop position timing mark TM of the target page reaches the reading position (1
) rises, and in response to the target page detection signal, the high speed instruction is switched to the low speed instruction. At this switching time, a deceleration operation is performed for a certain period of time, and then the vehicle runs at a low speed.

Then, when the rear end of the stop position timing mark TM passes the reading position, the stop position detection signal falls, and in response to this fall, the Slow signal and the High signal are set to "0" to perform the stop operation. .

Therefore, the speed V of the recording medium is as shown in (2), and the brake B shown in (3) starts operating when the high speed instruction is switched to the low speed instruction.

Next, FIG. 3 will be explained in more detail according to the timing chart of FIG. 5.

When moving the recording medium 21 to the target page, the control section outputs the Drive signal Dr O (Drive signal "1").
”) and the High signal is set to “1”.

Now, if the recording body 21 is moved in the direction of arrow A shown in FIG.
It is made into ol+.

Therefore, AND gate G2 becomes conductive, and AND gate G
, becomes non-conductive.

Therefore, the transistor TR13 is turned off and the transistor TR3 is turned on, and at the same time, the transistor TR14 is turned on and the transistor TR6 is turned off.

Also, the OR gate G1 becomes non-conductive and the inverter ■1
"1" is supplied to the transistor TR0 through the transistor TR0, the transistor TR0 is turned on, and the transistor TR1 is turned on.

Therefore, 124V power supply → TR → motor 24 → TR3 → R
2 and a circuit is formed, power is supplied to the up motor 24, and high speed rotation is performed.

At this time, the OR gate G3 becomes conductive and "0" is supplied to the transistor TR1o via the invanitor 2, and the transistor TR10 is turned off and the transistor TR4
The down motor 25 is also in an off state, and +24V power is not supplied to the down motor 25, so that it is not driven to rotate.

On the other hand, the analog switch 48 is turned on by the High signal "1", and the high-speed reference potential STH is applied as the ST potential to the (2) terminal of the voltage comparator.

Then, in this state in which the up motor 24 is driven and the recording medium 21 moves at high speed, the down motor 25 side operates as a feeder, and at this time, the down motor 25 is pulled by the recording medium 21.
is rotated.

Then, the electromotive force ■cD generated by this rotation is supplied to the e terminal of the voltage comparator 50, and the voltage comparator 50 compares the STH potential of the ■terminal with the VOD of the O terminal and turns on the transistor TR. Control off.

That is, if VOD is higher than STH, the output of the voltage comparator 50 becomes "0", transistors TR9 and TR1 are turned off, driving of the up motor 24 is stopped, and VOD
is lower than STH, the output of the voltage comparator 50 is “1”
Therefore, the transistor TR,.

TR0 is turned on to maintain the up motor 24 in the driving state.

In this way, the state of back tension acting on the feeding reel is electromagnetically detected, and when this back tension becomes small, the rotation of the driving reel is controlled, and thereby the recording medium 2
1, a predetermined back tension is always applied during high-speed running to prevent the recording medium from fluttering or the like.

Furthermore, when the High signal is "1", the inverter I3
"0" is supplied to the transistor TR15 through the transistor TR15, turning on the transistor TR1.

Then, the differential signal is supplied to the transistor TR7, the transistor TR7 is turned on, and the solenoid 44 is energized.

The braking operation is canceled by energizing the solenoid 44, and then the energization to the nilnoid 44 is maintained by turning on the transistor TR8.

The transistor TR7 acts to rapidly operate the solenoid 44 at the rise of the High-gh signal.

Therefore, the brake operation is released while the recording medium 21 is traveling at high speed.

In this way, the recording body 21 is moved at high speed in the upward direction,
When the recording medium 21 reaches the target page (position A in Figure 5)
, the High signal from the control unit is “0”.

The Slow signal is switched to 11111.

This high signal IIOII causes the inverter I
Transistor TR1 through transistor 3 is turned off, and therefore transistors TR7 and TR8 are also turned off, cutting off current supply to solenoid 44.

This starts the play main operation.

On the other hand, the analog switch 47 is turned on by "1" of the Slow signal, and the slow reference potential STL is set as the ST potential.
is supplied to the ■ terminal of the comparator 50.

Also, when the Slow signal becomes "1", the output via inverter ■4゜■5 is integrated, and this output and inverter I4
The output of is ANDed by the gate G, and at the rising edge of the Sl-ow multiplied signal, the input side of the voltage comparator 50 generates an electromotive force ■c
D> The output of the 50 is “0” due to the low speed reference voltage STI.
'', the input terminal of the flip-flop 520 is in the "0" state, and the output of the gate G is "1", the flip-flop 52 is in the "0" state.
is set.

By setting the flip-flop 52, the transistor TR is turned off and the transistor TR2 is turned on.

Since the up motor 24 is short-circuited by this ON operation of the transistor TR2, power is not supplied to the motor 24, and as a result, deceleration is performed by the braking operation.

Due to the deceleration, the traveling speed (2) of the recording medium 21 is rapidly reduced.

Therefore, the up motor 24 is controlled by this low speed reference voltage STL, and after deceleration for a predetermined time (until the flip-flop 52 is reset) while performing a braking operation, low speed running is performed.

In the reset operation of the flip-flop 52, the relationship between the input of the voltage comparator 50 is that the electromotive force VcD<low-speed reference voltage STL
That's when it became.

This is because the electromotive force VOD gradually decreases due to deceleration operation,
Thereafter, the low speed reference voltage 5TL (which is actually a triangular wave as described above) becomes unstable, and the voltage comparator 50 outputs "1" and the flip-flop 52 is reset.

As a result, thereafter, the up motor 24 runs at a low speed using the low speed reference voltage STL.

Thereafter, when the above-mentioned stop position detection signal (see FIG. 4 (1)) falls, in response, the control section changes the High-gh multiplied signal Slow signal to O, making it the Drive signal 1 (O
Position of).

By this Dr1ve signal l, OR gate G1. G3 becomes conductive, inverter 11゜■ and transistor TRT
R is turned off and therefore transistors TR1, TR
4 is turned off and the up motor 24 and down motor 2
5, the power supply is cut off and a stop operation is performed.

At this time, since the up motor 24 is stopped from running at low speed, it can be stopped immediately by the brake action.

In the above example, the recording medium 1 is moved in the direction of the arrow A, but in the opposite direction, the down signal becomes 111L+ and the down motor 25 operates as the winding side, and the down motor 25 is controlled as described above. be done.

As described above, according to the present invention, the traveling control of the recording medium is performed by controlling the drive on the take-up side based on the rotational state of the feed reel side, and adjusting the speed. A predetermined back tension is always applied to the reel side to eliminate the fluttering of the recording medium during running, and the recording medium is accurately wound onto the take-up reel so that the specified information on the recording medium is accurately placed at a predetermined position. It becomes something that can be stopped.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing the configuration of a conventional recording body moving device, FIG. 2 is a perspective view of the main part configuration of the recording body moving device according to the present invention, and FIG. 3 is a movement control configuration of the present invention. FIG. 5 is a circuit block diagram showing the operation of FIG. 4 and FIG. 5, and a time chart showing the operation of FIG. 3. 21: Recording body, 22 and 23: Reel, 24 and 25:
Motors, 26 and 27: Motor pulleys, 28 and 29:
Driven pulley, 30 and 31: belt, 32 and 33 brake drum, 34 and 35 brake band, 38 and 39 brake lever, 44: solenoid, 46 two triangular wave generators, 47 and 48: analog switch, 49 and 50 : Electric voltage comparator, TR0 to TR15: Transistor, 01 to G, : Gate, ■, to ■5: Inverter.

Claims (1)

[Scope of Claims] 1. A recording body movement control device capable of moving a recording body on which information is recorded between reels and stopping the recording body at a predetermined position to provide desired information on the recording body. a motor means connected to at least one of the reels for driving the reel to move the recording medium; a reference running speed of the recording medium when the recording medium is moved by the motor means; means for generating a reference level signal corresponding to the rotational temperature of the feed reel rotated by the tensile force acting when the recording medium is moved based on the motor means; Comparison means for comparing a signal corresponding to the rotation speed of the feed reel side and a reference level signal, when the relationship between the signal level corresponding to the rotation speed of the feed reel side and the reference level signal ♀ is the former dog. A control device for controlling the movement of a recording medium, comprising: control means for controlling the deceleration of the motor means in response to a signal output from the comparison means.