JPS62185588A - Controller - Google Patents

Abstract

PURPOSE:To operate a working machine synchronously with the operation of a main machine drive system by providing a pulse encoder at a cranking unit attached to the rotational shaft of the system. CONSTITUTION:A crank unit 10 is mounted on the rotational shaft 11 of a main machine drive system to convert the rotary motion of the shaft 11 to a reciprocating motion. A pulse encoder 20 is attached to the crank unit, the pulse output of the encoder 20 is applied through a multiplier 30 and a thinning frequency divider 40 as a control signal to a motor 50 to control to drive a working machine 60. A mark 64 attached to an element 62 to be worked is detected by a mark detector 70, the output is applied to the divider 40, and the motor 50 is operated in response to the predetermined working amount from the moment when the mark 64 is detected.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Object of the Invention [Field of Application of the Invention] The present invention relates to a control device, and particularly to a driven work device that is operated in faithful synchronization with the rotational movement of a rotating shaft of a main mechanical drive system. The present invention relates to a control device for controlling a drive device for driving.

[Conventional technology]

Conventionally, this type of control device 1 and drive device include a crank device 10 and 1 fixed to a rotating shaft 11 of a main machine drive system as shown in FIG. 4; a gear device 90 driven by the crank device 10; was being used. A housing 12a having one end fixed to one end of the rotating shaft 11, and a shaft 12c disposed within the housing 12a and rotated by a rotating lever 12b.
It contained. One end of the rod 13 is engaged with the shaft 12c, and the distance between the engagement position and the fixed position of the arm 12 to the rotating shaft 11 is adjusted by rotating the rotary lever 12b. The other end of the rod 13 was pivotally supported by a part of a sector gear 15 rotatable about a rotation shaft 14. A gear 18 fixed to a rotating shaft I7 was meshed with the tooth portion 1G of the sector gear 15.

A gear 9I of a gear device 90 is fixed to the rotating shaft 17, and an intermediate gear 92 is meshed with the gear 91.

An output gear 93 was connected to the intermediate gear 92 via a clutch brake mechanism (not shown). The output gear 93 is connected to a working device 60 or, for example, a main roller 61 for transporting a film in the case of a bag making machine. A driven roller 63 was in contact with a main roller 61 for conveyance through a film 62 which was a conveyed object.

As a result, the crank device 10 is operated in complete synchronization with the rotational movement of the rotating shaft 11 of the main mechanical drive system, and the operation of the crank device 10 allows the conveyed object, such as a film, to be subjected to excessive force at one speed. In order to eliminate obstacles associated with extended characteristics, the working device 60 is connected to the main mechanical drive system by one-to-one correspondence of the working device 60 to the control conditions specified as desired via the gear system 90. It is operated in complete synchronization with the rotational movement of the rotating shaft 11.

However, when it becomes necessary to change the amount of work performed by the working device 60, for example, in the case of a bag making machine, the amount of film fed is changed by rotating the rotary lever 12h to change the radius of rotation of the arm 2.

[Problems to be solved]

In the conventional dual control device, the work amount of the working device was changed and set by changing the rotation radius of the arm 12, so skill was required to set the work amount, and the setting mechanism was complicated. There were drawbacks. Furthermore, even if a certain mark is placed on the workpiece, there is a drawback that the working device cannot be controlled to perform a certain work on the workpiece based on the certain mark. In addition, since the crank device and the working device are mechanically connected by a gear device, there is also a drawback that the range in which the working device can be installed relative to the crank device is limited.

(2) Structure of the Invention [Means for Solving Problems] In order to solve the conventional problems, the present invention provides a crank device mounted on the rotating shaft of a J-mechanical drive system, and a crank device configured to control the crank device according to its operation. By attaching a pulse encoder device that generates pulse output, there is no need for mechanical adjustment and there is no restriction on the installation range of the work equipment, furthermore, the work equipment can be started from the moment a mark attached to the workpiece is detected. It is an object of the present invention to provide a control device capable of limiting the amount to a predetermined amount.

To this end, the present invention first provides a crank device that is attached to the rotating shaft of the main mechanical drive system and converts the rotational motion of the rotating shaft into reciprocating motion, and a crank device that is attached to the crank device and that outputs a Tehalus output in response to the reciprocating motion. a motor device which is a drive source of a working device that operates in accordance with the pulse output of the pulse encoder device and works in synchronization with the main machine drive system to work on the workpiece; and a mark detection device that is disposed near the passage path of the workpiece and detects the presence or absence of a mark attached to the workpiece, and from when the mark is detected by the mark detection device, the amount of work reaches a predetermined amount of work. The present invention provides a control device in which the motor device is operated in response to the motor device.

Second, the present invention provides a crank device that is attached to a rotating shaft of a main mechanical drive system and converts the rotational motion of the rotating shaft into reciprocating motion, and a crank device that is attached to the crank device and generates a pulse output in response to the reciprocating motion. A pulse encoder device, a thinning circuit that is connected to the pulse encoder device and thins out unnecessary pulses from the pulse output of the pulse encoder device, and operates synchronously with the main machine drive system that is operated in accordance with the output of the thinning circuit. a motor device serving as a drive source for a working device that performs work on a workpiece; and a mark detection device disposed near a passage path of the workpiece and detecting the presence or absence of marks placed on the workpiece. The present invention provides a control device in which the motor device is operated according to a predetermined amount of work from the time when a mark is detected by the mark detection device.

In addition, the present invention provides a control device in which the number of unnecessary pulses to be thinned out in the thinning circuit is set according to the amount of work of the working device.

Thirdly, the present invention provides a crank device that is attached to a rotating shaft of a machine drive system and converts the rotational motion of the rotating shaft into a reciprocating motion, and a crank device that is attached to the crank device and generates a pulse output in response to the reciprocating motion. a frequency dividing circuit connected to the pulse encoder gTI to divide the pulse output of the pulse encoder device, and a frequency dividing circuit that is operated in accordance with the output of the frequency dividing circuit and operated in synchronization with the main machine drive system. The apparatus includes a motor device that is a drive source for a working device that performs work on a work object, and a mark detection device that is disposed near the passage path of the work object and detects the presence or absence of a mark attached to the work object. The present invention provides a control device in which the motor device is operated according to a predetermined amount of work from the time when a mark is detected by the mark detection device.

In addition, the present invention provides a control device in which the frequency division ratio of the frequency dividing circuit is set according to the amount of work of the working device.

Fourthly, the present invention provides a crank device that is attached to a rotating shaft of a main mechanical drive system and converts the rotational motion of the rotating shaft into reciprocating motion, and a crank device that is attached to the crank device and outputs pulses in accordance with the reciprocating motion. A pulse encoder device that generates juice, a thinning/dividing circuit that is connected to the pulse encoder device and divides the frequency after thinning out unnecessary pulses from the pulse output of the pulse encoder device, and operates according to the output of the thinning/dividing circuit. A motor device which is a drive source of a working device that operates in synchronization with the main mechanical drive system to perform work on a workpiece, and a motor device that is disposed near the passage path of the workpiece and attached to the workpiece. and a mark detection device for detecting the presence or absence of a mark, and the control device is configured to operate the motor device according to a predetermined amount of work from the time when the mark is detected by the mark detection device. It is.

Furthermore, the present invention also provides a control device in which the number of unnecessary pulses thinned out in the thinning frequency dividing circuit and the frequency division ratio of the thinning frequency dividing circuit are set according to the work amount of the working device. be.

〔Example〕

Next, the control device of the present invention will be specifically explained with reference to the accompanying drawings.

FIG. 1 is an explanatory diagram of an embodiment of the present invention. FIG. 2 is a flowchart for explaining the operation of the embodiment shown in FIG. FIG. 3 is an explanatory diagram of another embodiment of the present invention.

A crank device 10 is fixed to a rotating shaft 11 of the main mechanical drive system, and is set to perform a desired reciprocating motion in synchronization with the rotational movement of the rotating shaft 11. That is, rotation axis 1
A rotating disk 12 is fixed to the rotating disk 1, and one end of a rod 13 is pivotally supported on a part of the rotating disk 12. rod 13
The other end is a sector gear 15 rotatable around a rotating shaft 14.
It is supported by a part of A gear 18 fixed to a rotating shaft 17 is meshed with the teeth 16 of the sector gear 15. The rotating disk 12 may be replaced with another rod having one end fixed to the rotating shaft 11 and the other end pivotally supported on one end of the rod 13.

Reference numeral 20 denotes a pulse encoder device attached to the rotating shaft 17 of the gear 18 meshed with the sector gear 15 of the crank device 10, which generates electrical signals to indicate the operation of the crank device 10 in synchronization with the rotational movement of the rotating shaft 11 of the main mechanical drive system. It is taken out as That is, a plurality of slits 22 are formed at equal intervals along the circumference of a disk 21 fixed to the rotating shaft 17, and a light emitting element 23 and a light receiving element 24 are opposed to each other through the slits 22 of the disk 21. By devising the number and arrangement of the A-phase and B-phase signals that are 90 degrees or out of phase with the A-phase signals and feeding them to the pulse encoder circuit fQ, 25, the A-phase and A-phase signals are generated by the pulse encoder circuit 25. A B-phase voltage output, that is, a pulse output, which is out of phase by 90 degrees is sent out. Pulse encoder device 20
In addition to the above-mentioned optical type, a magnetic type can also be used.

30 is a multiplier circuit connected to the pulse encoder circuit 25 of the pulse encoder device 20, which multiplies the A-phase and B-phase voltage outputs obtained by the pulse encoder circuit 25, that is, the pulse output, and compares it with the output of the pulse encoder circuit 25. A signal having one, two or four times the number of pulses (hereinafter referred to as a multiplied signal) is created. That is, in the case of 1x, a multiplied signal is created using only the rising edge or falling edge of the A-phase or B-phase pulse output. This one-time multiplication signal contains the same number of pulses as the number of slits 22 formed in the disk 2I. In the case of double, a multiplied signal is created using the rising edge and falling edge of the input phase or B phase pulse output.

This twice the frequency fS signal has 2B, which is the number of slits 22.
contains a number of pulses. In the case of 4 times, a multiplication signal is created using the rising edge and falling edge of the A-phase and B-phase pulse outputs. This four-times multiplied signal contains four times the number of pulses as the number of slits 22. Whether the multiplier of the multiplier circuit 30 is 1, 2, or 4 is determined by the number of slits 22 and the precision of the control signal ultimately required. Note that if the multiplier is 1, the multiplier circuit 30 may be removed.

40 is a thinning/dividing circuit connected to the multiplier circuit 30, which thins out an appropriate number of unnecessary pulses from the multiplied signal by the thinning circuit 41, and further divides the frequency appropriately by the frequency dividing circuit 42 to achieve desired control. Create a signal. The number of pulses thinned out in the thinning circuit 41 (hereinafter referred to as thinning number) and the frequency division ratio sent to the frequency dividing circuit 42 are set by setters 43 and 44, respectively. The set values of the setters 43 and 44 are created by appropriately processing the set values of the setter 45, for example, the appropriate length or cut length of one working cycle of the film when used in a bag making machine, in the calculator 46. That is, the calculator 46 determines the shape of the control signal according to the set value of the setter 45. Once the shape of the control signal is determined, a dense pulse train signal corresponding to the control signal is determined. The number of pulses of this pulse train signal and the number of pulses of the multiplied signal are compared to determine the frequency division ratio of the frequency dividing circuit 42. When the frequency division ratio is determined, a frequency division surplus is generated, and this frequency division surplus is used as a thinning factor. If the number of pulses corresponding to the number of decimators is all decimated at the end of one work cycle, the shape of the control signal will not be smooth and may cause production errors. It is preferable that the shape of the control signal be made as smooth as possible by performing thinning processing at as equal intervals as possible over the entire area.

Reference numeral 50 denotes a motor device connected to the thinning frequency dividing circuit 40, which is rotated by a certain angle in accordance with the number of pulses included in the control signal outputted by the thinning frequency dividing circuit 40. Therefore, as the motor device 50, NC servomomo, P L
A servo motor or step motor controlled by LfiI7 is used. Depending on the type of motor specifically used as the motor device 50, the control signal may be processed by an appropriate processing circuit (not shown) and then applied to the motor.

A working device 60 is connected to the motor device 50 and performs appropriate work on the object to be worked, such as a ten roller 61 for transporting a film in the case of a bag making machine. In this case, the main roller 61
A driven roller 63 is passed through a film 62 which is a workpiece.
is in contact.

Reference numeral 70 denotes a mark detection device disposed near the passage path of the object to be worked on, in which a light emitting element 71 and a light receiving element 72 are opposed to each other with a mark 64 on the object to be worked, for example, a film 62 interposed therebetween. The light receiving element 72 is connected to the calculator 46. When the light receiving element 72 detects the mark 64, a predetermined number of pulses corresponding to the amount of work set by the setting device 45, for example, the amount of feed of the film 62 from the mark 64 in the case of a bag making machine, is calculated. : Calculated by the J unit 46 using the output signal of the multiplier circuit 30, that is, the multiplication signal, and the speed signal given from the motor device 50. The set values of the setters 43 and 44 are changed according to this calculated value, and the operation details of the thinning circuit 41 and the frequency dividing circuit 42 are changed. As a result, the motor device 50 is driven according to the predetermined number of pulses, and the working device 60 is also operated. Therefore, for example, in the case of a bag making machine, the &J film 62 can always be conveyed for a predetermined length from the detection position of the mark 64.

Note that the output end of the mark detection device 70 may be directly connected to the motor device 50, for example, when the thinning/dividing circuit 4o is removed. In this case, mark detection device 7
0 and the motor device 50 to set the amount of work from the time the work device 60 detects the mark, or by including such a setting device in the motor device 50. The motor device 50 can be driven so that the device GO can perform a predetermined amount of work from the time the mark is detected. If the work of the work device 60 from the time of mark detection is always constant, the motor device 50 may be adjusted accordingly.

Furthermore, the operation of the control device of the present invention will be explained in detail.

First, in the setting device 45 of the thinning/dividing circuit 40, the working device 6
For example, in the case of a bag making machine with a work amount of 0, the film transport for one work cycle is set. The set value of the setter 45 is immediately given to the calculator 46 (see the second "Reading of set value").
), the frequency division ratio of the frequency dividing circuit 42 and the decimation number of the decimation circuit 41 are calculated from the set value and the number of pulses included in the multiplied signal. The calculated decimation factor and frequency division rate are set in setters 43 and 44, respectively (see "Setting of decimation factor and frequency division rate" in FIG. 2), and define the operations of the decimation circuit 41 and frequency division circuit 42.

Further, in the setting device 45, the work amount of the working device 60 in one working cycle after a mark attached to a workpiece, such as a film, is detected is set (see FIG. "reference).

When the rotating disk 12 fixed to the rotating shaft 11 of the main mechanical drive system is rotated in the direction of the arrow in synchronization with the main mechanical drive system, one end of the rod 13 is also rotated in the direction of the arrow. As a result, the sector gear 15 is rotated in the direction of arrow B and the direction of arrow C around the rotating shaft 14, so that the gear 18 is rotated by the teeth 16 of the fan gear 15.
is also rotated in the direction of arrow A and the direction of arrow E.

At this time, since the rotation of the rotary disk 12 is a constant velocity motion, the rotation of the sector gear 15 becomes an approximate sinusoidal curve motion, and the rotation of the gear 18 also becomes an approximate sinusoidal curve motion. In other words, the rotational movement of the gear 18 draws a sinusoidal curve in response.

The rotational movement of the gear 18 is controlled by a slit 22 bored in a disc 21 of a pulse encoder device 20 mounted on the rotating shaft 17.
The light-emitting element 23 and the light-receiving element 24 arranged through the disk 21 and the pulse encoder circuit 25 connected to the light-receiving element 24 produce an appropriate voltage output, that is, a pulse output, and serve as the output of the pulse encoder device 20. Sent out. The voltage output sent by the pulse encoder circuit 25 is a pulse having an approximate sinusoidal curve since the rotational movement of the gear 18 and thus the disk 21 is an approximate sinusoidal curve motion.

The voltage output, ie, the pulse output, sent out from the pulse encoder device 20 is given to the multiplier circuit 3o and multiplied as appropriate. The multiplication factor is determined by the number of pulses included in the voltage output of the pulse encoder device 20 and the working accuracy of the working device 60.

The voltage output multiplied by the multiplier circuit 30, ie, the multiplied signal, is applied to the thinning/dividing circuit 40. In the thinning/dividing circuit 40, since the thinning number of the thinning circuit 41 and the frequency division rate of the frequency dividing circuit 42 are set in advance, the thinning process and the frequency dividing process are executed in accordance with these settings.

At this time, if a starting command is given to the motor device 50 (see "Starting Command Part" in FIG. 2), the multiplied signal subjected to thinning and frequency division processing is given to the motor device 50 as a control signal. It is started in response to a signal (see Figure 2, "Pamotor Start") and is operated with an appropriate speed waveform.

When the motor device 50 is started, the calculator 46 counts the number of pulses of the multiplication signal (see “Counting the number of pulses of the multiplication signal” in FIG. 2) and counts the number of pulses of the pulse train signal given to the motor device 50. (See Figure 2 "Counting the number of pulses in a pulse train signal").

A working device 60 is connected to the motor device 50 . To explain in detail the case of the bag making machine shown in FIG. 62 to motor device 5
0) at a speed corresponding to the operation waveform of arrow E)].

When the workpiece to be processed by the working device 60 does not have a mark (see "Mark" in FIG. 2), when the number of pulses of the pulse train signal given to the motor device 50 reaches a predetermined value, The motor device 50 is brought to a stop (see "Motor Stop" in FIG. 2).

When the workpiece to be processed by the working device 60 has a mark (see "Mark" in FIG. 2), if the operation of the motor device 50 is in the timing region of the mark (see "Timing region of the mark" in FIG. 2). When the mark G4 is detected by the mark detection device 70 during the processing of the workpiece F in the work device 60, for example during the general feeding of the fill J, 62, the dissection unit 46 detects the mark G4 from the mark 64 of the workpiece. The setting values of the setters 43 and 44 are changed according to the desired processing amount (see Figure 2, "Resetting the decimation argument and frequency division ratio"), and the operations of the decimation circuit 41 and the frequency division circuit 42 are performed appropriately. The adjusted and necessary number of pulses is applied to the motor device 50, thereby driving the motor device 5o. When the number of pulses applied to the motor device 50 reaches a predetermined value (see “Second Predetermined Value” in FIG. 2). ), the motor device 5o is stopped (see "Motor Stop" in Figure 2).Therefore, the mark 64 is detected when the working speed of the working device 60 has sufficiently decreased before the end of one working cycle of the working device 60. By doing so, a certain amount of work can be executed from the time the mark 64 is detected, and the work can be carried out smoothly, regardless of the amount of work performed from the start of the work by the work device 6o until the time the mark 64 is detected. It is also possible to terminate the process.

In addition, in the double series, a thinning frequency dividing circuit 4o is used, but if very high accuracy is not required for the working accuracy of the working device, a thinning circuit or a frequency dividing circuit can be used as necessary. Also, depending on the case, it may be omitted altogether.

Further, in the above description, a case has been mainly described in which a rotating disk, a rod, and a sector gear are used as a crank device, but a crank device having another structure may be used. For example, as shown in FIG. 3, one end of the rod 13A is pivoted to the other end of an arm 12 whose one end is fixed to the rotating shaft 11, and the other end of the rod 13 is pivoted to one end of the rod 15. Rod 1
5A may be caused to reciprocate, and the gear 18 may be rotated by toothed portions 168 formed on the circumferential surface thereof.

(3) Effects of the Invention As is clear from the double series, the present invention provides a pulse encoder device which includes a crank device attached to the rotating shaft of the main mechanical drive system and which generates a pulse output to the crank device in accordance with the operation of the crank device. By attaching it, it is possible to obtain control signals to operate the motor device that is the drive source of the work equipment.
This has the effect that the working device can be operated in complete synchronization with the operation of the main mechanical drive system and according to the control conditions defined by the crank device, and also has the advantage that there is no restriction on the installation range of the working device. Furthermore, in the present invention, the pulse output of the pulse encoder device is subjected to thinning processing or appropriate frequency division processing for unnecessary pulse outputs, so that by appropriately adjusting the thinning processing or frequency division processing, the work equipment can It has the effect that the amount can be easily changed.

Furthermore, the present invention detects a mark that has landed on the workpiece before the end of one working cycle of the working device and at a time when the working speed of the working device has sufficiently decreased, and performs a predetermined amount of work from the time when the mark is detected. Since the work is carried out by a working device, it has the advantage of being able to perform suitable work without being greatly influenced by the mark spacing, and also has the advantage of being able to accommodate a wide variety of mark spacings.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of one embodiment of the present invention, FIG. 2 is a flowchart diagram for explaining the operation of the embodiment of FIG. 1, FIG. 3 is an explanatory diagram of another embodiment of the present invention, and FIG. FIG. 2 is an explanatory diagram of a conventional example. 10......Crank device 1]...Rotating shaft 12...Rotating disk 13...Rod 14 ......Rotating shaft 15...Sector gear 16...Tooth section 17...Rotating shaft 18... ......Gear 20...Pulse encoder device 21...
......Disk 22...Slit 23...Light emitting element 24...Light receiving element 25... ...Pulse encoder ITQ L'
) 30...... Multiplier circuit 40... Thinning frequency divider circuit 41... Thinning circuit 42...・Membrane regulator 46 for frequency dividing circuit 43, 44, 45...
......Calculator 50...Motor device 60...Working device 61...Main roller 62... ...Film 63...Followed roller 64...Mark

Claims (21)

[Claims] (1) (a) A crank device that is attached to the rotating shaft of the main mechanical drive system and converts the rotational motion of the rotating shaft into reciprocating motion, and (b) A crank device that is attached to the crank device and outputs pulses in response to the reciprocating motion. (c) a motor device that is operated in response to the pulse output of the pulse encoder device and is a drive source of a working device that operates in synchronization with the main machine drive system to perform work on a workpiece; and (d) ) a mark detection device that is disposed near the passing path of the workpiece and detects the presence or absence of a mark attached to the workpiece, and from the time when the mark is detected by the mark detection device, A control device characterized in that the motor device is operated according to the amount of work. (2) The crank device includes a rotating disk fixed to the rotating shaft of the main mechanical drive system, a rod whose one end is pivoted to a part of the rotating disk, and the other end of the rod is partially pivoted. claim (1), characterized in that the pulse encoder device includes a gear that is meshed with the teeth of the sector gear; Control device as described. (3) The pulse encoder device includes a disc mounted on the rotating shaft of the gear, a plurality of slits formed at equal intervals along the circumference of the disc, and light emitting elements facing each other through the slits. and a light receiving element, and a pulse encoder circuit that sends out a pulse output according to the operation of the light receiving element.
Control device as described in section. (4) Claims (1) to (3) characterized in that the detection of the presence or absence of the mark by the mark detection device is carried out at a time when the working speed for the workpiece has sufficiently decreased. The control device according to any one of the following. (5) (a) A crank device that is attached to the rotating shaft of the main mechanical drive system and converts the rotational motion of the rotating shaft into reciprocating motion; and (b) a crank device that is attached to the crank device and outputs pulses in response to the reciprocating motion. (c) a thinning circuit connected to the pulse encoder device and thinning out unnecessary pulses from the pulse output of the pulse encoder device; and (d) a main pulse encoder that is operated in response to the output of the thinning circuit. (e) a motor device which is a drive source of a working device that works in synchronization with a mechanical drive system to perform work on a workpiece; A control device comprising a mark detection device for detecting the presence or absence of a mark, and the motor device is operated according to a predetermined amount of work from the time when the mark is detected by the mark detection device. (6) The control device according to claim (5), wherein the number of unnecessary pulses thinned out in the thinning circuit is set according to the amount of work of the working device. (7) The crank device includes a rotating disk fixed to the rotating shaft of the main mechanical drive system, a rod whose one end is pivoted to a part of the rotating disk, and a rod whose other end is partially pivoted. claim (5), characterized in that the pulse encoder device includes a gear that is meshed with the teeth of the sector gear; or the 6th
) The control device described in section 2. (8) The pulse encoder device includes a disc mounted on the rotating shaft of the gear, a plurality of slits formed at equal intervals along the circumference of the disc, and light emitting elements facing each other through the slits. and a light receiving element and a pulse encoder circuit that sends out a pulse output according to the operation of the light receiving element.
Control device as described in section. (9) Claims (5) to (8) characterized in that the mark detection device detects the presence or absence of a mark at a time when the working speed for the workpiece has sufficiently decreased. The control device according to any one of the following. (10) The control device according to any one of claims (5) to (9), wherein the thinning circuit thins out unnecessary pulses at approximately equal intervals. (11) (a) A crank device that is attached to the rotating shaft of the main mechanical drive system and converts the rotational motion of the rotating shaft into reciprocating motion; and (b) a crank device that is attached to the crank device and outputs pulses in response to the reciprocating motion. (c) a frequency dividing circuit connected to the pulse encoder device and dividing the pulse output of the pulse encoder device; and (d) a frequency dividing circuit operated in accordance with the output of the frequency dividing circuit to drive the main machine. (e) a motor device that is a drive source of a working device that operates in synchronization with the system to perform work on a workpiece; 1. A control device comprising: a mark detection device for detecting a mark; the motor device is operated according to a predetermined amount of work from the time when the mark is detected by the mark detection device. (12) Claim No. 1, characterized in that the frequency division ratio of the frequency dividing circuit is set according to the amount of work of the working device.
The control device described in section 1). (13) The crank device includes a rotating disk fixed to the rotating shaft of the main mechanical drive system, a rod whose one end is pivoted to a part of the rotating disk, and the other end of the rod is partially pivoted. claim (11), characterized in that the pulse encoder device includes a gear that is meshed with the teeth of the sector gear; Or the control device according to item (12). (14) The pulse encoder device includes a disc mounted on the rotating shaft of a gear, a plurality of slits formed at equal intervals along the circumference of the disc, and light emitting elements facing each other through the slits. and a light receiving element, and a pulse encoder circuit that sends out a pulse output according to the operation of the light receiving element.
2) The control device described in section 2). (15) Claims (11) to (14) characterized in that the mark detection device detects the presence or absence of a mark at a time when the working speed for the workpiece has sufficiently decreased. The control device according to any one of the following. (16) (a) A crank device that is attached to the rotating shaft of the main mechanical drive system and converts the rotational motion of the rotating shaft into reciprocating motion; and (b) a crank device that is attached to the crank device and outputs pulses in response to the reciprocating motion. a pulse encoder device that generates the pulse encoder; (c) a thinning/dividing circuit that is connected to the pulse encoder device and divides the frequency after thinning out unnecessary pulses from the pulse output of the pulse encoder device; and (d) a thinning/dividing circuit. (e) a motor device which is operated in accordance with the output and serves as a drive source of a working device that works in synchronization with the main machine drive system to perform work on the workpiece; and a mark detection device that detects the presence or absence of a mark attached to a workpiece, and the motor device is operated according to a predetermined amount of work from the time when the mark is detected by the mark detection device. A control device characterized by: (17) The number of unnecessary pulses to be thinned out in the thinning/dividing circuit and the frequency division ratio of the thinning/dividing circuit are set according to the amount of work of the working device. The control device according to item (16). (18) The crank device includes a rotating disk fixed to the rotating shaft of the main mechanical drive system, a rod whose one end is pivotally supported on a part of the rotating disk, and the other end of the rod is partially pivotally supported. Claim (16) characterized in that the pulse encoder device includes a gear that is meshed with the teeth of the sector gear. Or the control device according to item (17). (19) The pulse encoder device includes a disc mounted on the rotating shaft of a gear, a plurality of slits formed at equal intervals along the circumference of the disc, and light emitting elements facing each other through the slits. and a light receiving element, and a pulse encoder circuit that sends out a pulse output according to the operation of the light receiving element.
8) The control device described in section 8). (20) Claims (16) to (19) characterized in that the detection of the presence or absence of a mark by the mark detection device is carried out at a time when the working speed for the workpiece has sufficiently decreased. The control device according to any one of the following. (21) Claim (16) characterized in that the thinning circuit thins out unnecessary pulses at approximately equal intervals.
The control device according to any one of items 1 to 20.