JPS586655B2 - Recording body movement control - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a recording medium on which information is recorded (on which information is printed so as to be visible or magnetically recorded so as to be invisible to the naked eye).
is moved between the reels (the take-up reel and the feed reel), and the recording body is arbitrarily stopped at a desired position (the display position where 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). The present invention relates to a recording medium moving device that is capable of moving a recording medium.

For example, each key in a group of data keys is defined using a record displaying the names of various items of data to be input, and by selecting this page, there are many columns with the names of various items whose definitions can be changed. 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. In such a recording body moving device, the present invention relates to the traveling control of the recording body, and in particular, the present invention is concerned with the running control of the recording body, and in particular, the present invention is concerned with causing the winding motor connected to the take-up reel to run at a constant speed, and to control the speed of the feed motor connected to the feed reel. A driving force is applied to the motor in the direction opposite to that of the winding motor, so that a constant torque is applied to the winding motor, thereby preventing the recording medium from flapping or sagging while it is running, and moving the recording medium to the reel. The control method enables accurate winding of the recording medium and accurately stopping the designated information on the recording medium at a predetermined position.

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

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

6 and 7 indicate guide rollers.

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 the drive mechanism is activated by reading the target page. It was something to stop.

In this case, the recording medium is moved at high speed in order to select the target page of the recording medium in a short time. A certain amount of back tension is required on the reel.

For this reason, a brake drum attached to the reel shaft on the feed side presses a brake band to apply braking to 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. It had a serious defect in that the traveling customization changed as the band changed over time, causing the stopping 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 equivalently according to the amount of recording material to be wound, and the speed changes. Due to this phenomenon and changes in reel customs, the stopping positions at the beginning and end of the reel are different, and the stopping positions are also shifted.

The present invention provides a recording medium movement control that solves the various problems mentioned above, 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 recording medium, and a reel 22.2
The reel is driven between 3.

The recording body 21 has a large number of pages with columns for the names of various items as pages, and therefore, a page code PC and a stop position mark TM having a certain length l and the stop position mark TM are provided in correspondence with the name columns. Brake marks BM are provided correspondingly to the front and rear of the vehicle.

The detection signals of the stop position mark TM and brake mark BM are shown in FIG.

24 is an up-side motor that drives the reel 22 to move the recording body 21 in the direction in which the number of pages increases, and 25 is a down-side motor that drives the reel 23 to move the recording body 21 in the direction that the number of pages decreases. It's a motor.

Motor pulleys 26, 27 are attached to the rotating shafts of the motors 24, 25, respectively, and driven pulleys 28, 29 are attached to the rotating shafts of the reels 22, 23. Driven pulley - 28.29
Belts 30 and 31 are suspended between the motors 24 and 2, respectively.
5 rotations are transmitted to the corresponding reels 22, 23, respectively.

Brake drums 32 and 33 are respectively attached to rotating shafts of reels 22 and 23 extending from the driven pulleys 28 and 29, and each of the drums 32 and 33 is equipped with a brake band 34 and 35.

One end of the brake band 34.35 is fixed to the brake fixing shaft 36.37, and each brake drum 3
2.33 and the other end is attached to one end of the brake lever 38.39.

The brake levers 38 and 39 are rotatable around the pivot parts 40 and 41, respectively, and the bands 34 of the levers 3B and 39
, 35 is moved up and down to wrap the brake bands 34, 35 around the drums 32, 33 to apply or release braking.

Also, one end of these levers 38, 39 on which the hand is attached is always connected to the brake band 34 by a spring 42, 43.
35 is wound around the drums 32 and 33 and is biased in a direction to provide braking.

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

For this reason, when the solenoid 44 is energized, the plunger 44A is attracted and rotates one end of the brake lever 38, 39 in a direction against the spring 42, 43, respectively, to separate the brake bands 34, 35 from the brake drum 32, 33. Release the brake to release the brake.

Furthermore, when the energization to the solenoid 44 is stopped, the spring 42
, 43 in this biasing direction, and the brake bands 34, 35 are rotated by the brake drums 32, 32, 43, respectively. 33 to provide braking. In this FIG. 2, the recording body 21 is indicated by an arrow A.
When moving in the direction, drive the upmoke 24 (
(Down motor 25 stopped) The reel 22 is operated as a take-up reel and the reel 23 is operated as a feed reel.

When moving the recording medium 21 in the direction opposite to the direction of arrow A, the down motor 25 is driven (the up motor 2
4) 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 and the brake band 34 and the brake drum 33 and the brake band 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; In the latter case, the brake force acts more strongly and the take-up reel 22 is attached to the reel 23 on the feed side.
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 storage medium 21 moves in the opposite direction to the direction indicated by the arrow 8, a stronger braking force is applied to the feed reel 22 than to the take-up reel 23 in the same way 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.

UM is an up motor 24 connected to the reel 22 shown in FIG. 2, to which +24cm power is supplied via a transistor Tr1, and its rotation is controlled in the direction of arrow A in FIG.

DM is a down motor 25 connected to the reel 23 shown in FIG. 2, which is supplied with +24cm power via a transistor Tr2, and is controlled to rotate in the opposite direction to the arrow in FIG.

Reference numeral 62 and 64 are amplifiers, and the voltages applied to the UM motor 24 and DM motor 25 and the reference voltage S-■ of the running speed
This is to control the transistors Tr1tTr2 to a constant speed using the transistors T, 3, and Tr4.

Reference numeral 63.65 is an amplifier, which compares the current flowing through the UM motor 24 and DM motor 25 with S-I, which indicates the reference torque, and controls the transistors Trl and Tr2 using the transistors Tr3 and Tr4 to control the constant torque. This is what we do.

Reference numerals 66 to 69 are analog switches, and when the recording curtain is moved in the direction of the arrow in FIG. 2, the UP signal i is output, and the analog switches 66 and 69 are turned on.

Also, if you want to move the recording curtain in the opposite direction to the arrow in Figure 2, press D.
The own signal is output, and the analog switches 67 and 68 are turned on.

FIG. 4 shows a circuit that generates the reference voltage S-1 for constant running described above and the reference voltage S-I for constant torque as the recording medium moves.

In this FIG. 4, 50 to 54 are analog switches, T1, T2, T shown in the time chart of FIG.
Turns on in response to timing 3.

Further, the analog switches 50 to 54 are connected in series with resistors Ra, Rb, Rc, and Rg, each having a resistance value corresponding to the reference voltage.
, Rh are provided and input to voltage adders 55 and 56.

The output voltages of S-■ and S-I are output as shown in the following equation.

These SV and SI are output as shown in FIG.

Figure 5 shows the above-mentioned solenoid 4 that performs the brake operation.
In response to the start of running of the recording medium, a drive stage 44' is turned on, energizing the solenoid 44, and releasing the brake operation.

Further, the stop position mark TM and brake mark BM on the target page of the recording body 21 are detected, and this mark T
In response to the detection of the brake mark BM corresponding to the rear part of the vehicle M, the drive means 44' is turned off to cut off the current to the solenoid 44, thereby performing the braking operation.The relationship between these operations is shown in the time chart of FIG. is shown.

In FIG. 6, N is the rotational speed of the take-up motor, TM is a stop position mark detection signal, and BM is a brake mark detection signal.

Next, the operation shown in FIG. 3 will be explained together with the time chart shown in FIG. 6.

When the recording medium 21 is moved in the direction of arrow A as shown in FIG. 2, the UP signal "I" is output from the control section.

(The Down signal is "0") Then, at the same time as the UP signal is output, the T1 signal is output from the control section, the analog switch 50 in FIG. 4 is turned on, and the reference voltage is is output at the S end,
Further, the analog switch 53 is turned on, and a reference voltage as shown in the time chart of FIG. 6 is output to the S1 terminal.

Furthermore, the analog switch 66 is turned ON by the UP signal, and the transistor Tr3 is controlled by the C-UM, and the transistor Tr is controlled, so that a relatively high voltage of +24
Supplied from the V power supply.

This is to speed up the start-up of the motor.

Further, the analog switch 69 is turned on, and the detected voltage is compared with the reference voltage S-I by the current flowing to the UM motor 24 in the amplifier 65, and the transistor T is turned on at the potential of C-DM.
r4 and transistor Tr2 to apply +24V to the DM motor 25 as shown in FIG.
A voltage is supplied from the power source to control the UM motor 24 to rotate in the opposite direction.

This pulls the recording medium, controls the UM motor 24 to a constant torque, and prevents the recording medium from sagging.

After a certain period of time, the control section outputs the T2 signal, turning on the analog switch 51 in FIG. 4, and the reference voltage for high-speed running is output to the S1 terminal (see the T2 section in FIG. 6).

The reference voltage for high-speed running is supplied to the amplifier 62, and since the analog switch 66 is ON, the UM motor 2
4, and controls the transistor Tr1 via the transistor Tr3,
The voltage VUM applied to the UM motor 24 is controlled to be U2 in FIG.

Also, since the analog switch 69 is ON, UM
The amplifier 65 compares the voltage generated by the current JUM flowing through the motor 24 with the reference voltage S-I generated when the analog switch 53 is turned ON, and controls the transistor Tr2 via the transistor Tr4, thereby controlling the DM. +24V to rotate Mork 25 in the opposite direction
Power is applied via Tr1.

This controls the UM motor 24 to a constant torque by pulling the recording medium in the opposite direction to the moving direction, thereby preventing the recording medium from sagging and keeping the rotation speed constant.

When the recording medium reaches the target position, the control section outputs a T3 signal.

When the T3 signal is output, the analog switch 52 is turned on and outputs the reference voltage S-■ for reducing the voltage applied to the UM motor 24 to a low speed, as shown in FIG.

Further, since the annular speed switch 54 is turned on and the UM motor 24 is decelerated, a reference voltage S-I that is relatively higher than that at high speed is output as shown in FIG.

Similarly to the above, the amplifier 62 calculates the applied voltage VU of the UM motor 24.
A comparison is made between M and the reference voltage S1V, and since the analog switch 6 is on, the transistor T
The transistor Tr1 is controlled via r3, and U
The voltage VUM applied to the M-moke 24 is set to U3.

Therefore, the UM moke 24 is decelerated.

Further, the amplifier 65 compares the voltage I-UM generated by the current IUM flowing through the UMmoke 24 with the reference voltage S-I as described above, and since the analog switch 69 is ON, the transistor Tr4 is turned on. The transistor Tr2 is controlled through the DM motor to make the voltage VDM applied to the DM motor relatively high.

This increases the tensile force of the recording medium and controls it to a constant torque at a low speed, thereby preventing the recording medium from sagging and maintaining a constant rotational speed.

When the recording medium reaches the stop position, the control unit outputs T1, T2,
All T3 signals are set to "O", and the analog switch 50,
Turn off 51, 52, 53, and 54.

Further, the drive of the brake solenoid 44 is stopped and the brake is operated.

Then, since T1, T2, and T3 are not output, the reference voltages S-V and S-I become negative potentials, and the amplifiers 62 and 6
5 becomes zero potential, cutting off the transistors Tr3 and Tr4 and turning off the transistors Tr1pTr2.

Therefore, no voltage is applied to the UM motor 24 and the DM motor 25, and they are stopped.

When moving the recording body in the direction opposite to the arrow in Fig. 2, D
The own signal is output and the UM motor 24 becomes DM motor 25.
The torque is controlled, and the same operation as above is performed.

In this way, in the present invention, the winding side motor connected to the winding reel is caused to travel at a constant rate, and a force is applied to the feeding side motor connected to the feeding reel to drive the winding side motor in the opposite direction to the winding side motor. A constant torque is applied to the taking-side motor, and in this case, especially when the recording medium is moved, the target page is reached based on the initial movement T1, the subsequent constant traveling time T2, and the detection of the mark on the recording medium. When the reference voltage level S-V (T1>T
2>T3), and a first reference voltage generation circuit that sequentially generates reference voltage levels S-I(
a second reference voltage generation circuit that sequentially generates T1, T2<Ts); and a first reference voltage generation circuit that is provided corresponding to each morke and is provided when the morke is acting as a winding side. a first comparison means group 62, 6 for comparing the reference voltage from the reference voltage and the voltage applied to the corresponding mork;
4, the reference voltage from the second reference voltage generation circuit provided corresponding to each motor is compared with the voltage generated by the current flowing when the corresponding motor is acting as a winding side. Second comparison means groups 63 and 65, and switch means 66 to 69 for enabling each one of the first and second comparison means groups in accordance with the moving direction of the recording medium.
and controlling the moke acting as a winding side based on the output signal of the first comparison means activated by the switch means when the recording medium is moved in the direction of the target page, and the switch means Based on the output signal of the second comparing means that became effective in the above step, the feed-side moke, which is applied with a driving force in the direction opposite to the rotation caused by the movement of the recording medium, is controlled to move the target page of the recording medium to a predetermined position. The information on the designated page of the recording medium can be accurately stopped at a predetermined position by accurately winding onto the reel based on the timings of T1, T2, and T3.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing a conventional recording body movement control device, FIG. 2 is a perspective view showing the main part configuration of a recording body movement control device according to the present invention, and FIG. 3 is a movement control diagram of the present invention. 4 is a circuit diagram for creating a specific signal in FIG. 3, FIG. 5 is a solenoid drive circuit diagram in FIG. 2, and FIG. 6 is a time diagram showing the operation of the present invention. It is a chart. 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 38: brake lever, 44: solenoid, 44':
Solenoid driver circuit, Tr1 to Tr4: transistors, 50 to 54: analog switches, 55 and 56:
Voltage adder, 62-65: Amplifier, 66-69: Analog switch.

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. and a long recording body provided with recorded information as pages consisting of a plurality of blocks and provided with marks giving page information corresponding to each page; and for moving the recording body in the direction of a desired page. , seven arcs for driving the reels provided corresponding to the two reels, and when one of the reels is being driven as a take-up side, the other feed side is rotated in the direction of rotation due to movement of the recording medium. When the motor to which a driving force is applied in the opposite direction and the recording medium move, the target page is reached based on the initial movement T1, the subsequent constant traveling time T2, and the detection of the mark on the recording medium. The first step is to sequentially generate different reference voltage levels (T1>T2>T3) at each timing T3.
The reference voltage generation circuit has different reference voltage levels (TI, T3) at the timings Tl, T2 and T3 in relation to the movement of the recording medium.
2<T3), and a second reference voltage generation circuit is provided corresponding to each of the motors and generates a voltage from the first reference voltage generation circuit when the motor is acting as a take-up side. a first comparison means group for comparing a reference voltage with a voltage applied to the corresponding motor; a second comparing means group for comparing the voltage generated by the current flowing through the motor when the motor is acting as a take-up side; and the first and second comparing means group corresponding to the moving direction of the recording medium. switch means for enabling each one of the group of means; and a switch means for enabling each one of the group of means, the winding being performed based on the output signal of the first comparison means enabled by the switch means when the recording medium is moved in the direction of the destination page. The motor acting as the take-out side is controlled, and a driving force is applied in the direction opposite to the rotation due to the movement of the recording medium based on the output signal of the second comparison means activated by the switch means. A movement control of a recording medium characterized by controlling a side moke to stop a target page of the recording medium at a predetermined position.