TWI418469B - Version of the formation of the body position correction circuit - Google Patents

Description

Plate position correction circuit

The present invention relates to a plate forming mechanism for a commemorative coin printing device, and more particularly to a circuit for automatically correcting the position of a plate of the plate.

It is customary to have a commemorative coin-type imprinting device that can sell commemorative coins after the commemorative coin sheet has a embossed pattern. This device is a product that was born in response to the expectation of commemorative coins such as exhibition halls or related mascots in the event of a visit to the exhibition hall.

An example of the appearance of the commemorative coin plate imprinting apparatus is shown in Fig. 5.

A commemorative coin purchase step display portion 56 for commemorating the description of the coin forming process is disclosed on the upper front side of the commemorative coin printing device 51. Below the commemorative coin purchase step display portion 56, a transparent window 57 is provided for viewing the commemorative coin-plate forming mechanism. At the front portion of the transparent window 57, a pattern selection panel 54 having pattern selection buttons 54a, 54b, and 54c for respectively selecting different patterns is disposed. Inside the pattern selection buttons 54a, 54b, and 54c are built-in light-emitting bulbs.

A portion of the layout selection panel 54 is provided with a sold portion 58 in which the embossed pattern commemorative coin has been formed, and a coin input portion 55 is disposed beside the portion.

The person who wants to purchase the commemorative coin first puts the designated coin in the coin input unit 55.

When the coin is put in, the plate forming mechanism (not shown) inside the device supplies the coin raw material plate to the roller having a flat rotating surface and the roller equipped with the plate. The upper portion of the interval, while the three pattern selection buttons 54a, 54b, and 54c of the pattern selection panel 54 are illuminated, thereby urging the commemorative coin purchaser to select one of the buttons that are different in pressing the embossed pattern. When the commemorative coin purchaser selects one of the buttons to press, the coin raw material plate will fall between the roller having the flat surface of the rotating surface and the roller with the plate, and the selected version of the coin raw material plate is formed from the sold portion. 58 sold a commemorative coin with a bump pattern.

Fig. 6 to Fig. 10 illustrate the plate forming mechanism of the commemorative coin printing apparatus of Fig. 5.

6 is an overall perspective view showing the plate forming mechanism, and FIG. 7 is a perspective view of the plate forming mechanism viewed from the back side of the upper position, and FIGS. 8, 9 and 10 are respectively a right side view, a top view, and A-A section line drawing.

The fixed base 66 is fixed to a device casing (not shown), and the roller mounting plates 68 and 69 for assembling the plate forming roller are erected on the upper surface, and the plate mounting roller driving motor 61 is attached to the lower surface. The drive shaft 62 of 61 is fixed to the gear 63.

On the other hand, the shaft 70 is rotatably attached to the roller mounting plates 68, 69, and the gear 71 is fixed to one end of the shaft 70. A chain 64 is hung between the gear 63 and the gear 65, whereby the rotational force of the motor 61 can be transmitted to the shaft 70.

The calender roll 74 is fixed to the shaft 70 as shown in Fig. 7, and a gear 71 is attached to the end of the shaft 70. The shaft 73 is rotatably attached to the roller attachment plates 68 and 69 in parallel with the shaft 70, and three plates (first plate 76a, second plate 76b, and the first plate) are attached to the peripheral surface at intervals of approximately 120 degrees. Version 3 76c) version of the mounting roller 75. Further, a gear 72 that can be engaged with the gear 71 is attached to the end of the shaft 73. First edition 76a, second edition 76b and The 3rd edition 76c is provided with irregularities that can imprint different patterns.

The motor rotational force transmitted to the shaft 70 is transmitted to the gear 72 through the gear 71, whereby the plate mounting roller 75 is rotated. The circumferential surface of the calender roll 74 and the plate of the plate mounting roll 75 are formed to be pressed, and the calender roll 74 and the plate mounting roll 75 are rotated together.

A guide rail 77 that guides the commemorative coin stock plate 78 to the crimping surface on the crimping surface portion of the calender roll 74 and the plate mounting roller 75 is provided on the roller mounting plates 68, 69. The guide rail 77 is a configuration in which a long groove is formed in the vertical direction, and the commemorative coin stock sheet 78 is confined while being recessed on the side wall of the long groove. A transparent plate (not shown) is attached to the long groove to prevent the commemorative coin stock plate 78 from flying out.

A through hole 77a through which the plunger 84 of the electromagnetic coil can enter and exit is formed in the vicinity of the upper portion of the guide rail 77. When the plunger 84 of the electromagnetic coil protrudes from the through hole 77a, the commemorative coin stock sheet 78 sent via the commemorative coin stock sheet feeding hopper (not shown) stops in the guide rail 77, and the electromagnetic coil drives the plunger. When the 84 is retracted, the commemorative coin stock sheet 78 is dropped on the crimping surface of the calender roll 74 and the plate mounting roller 75.

The plate forming timing signal for the commemorative coin raw material plate 78 is formed by the cam 80 shown in Figs. 8 to 10. The cam 80 is a shaft fixed to the back side of the gear 65.

The cam 80 is provided with cam portions 80a, 80b, and 80c at substantially 120 degrees intervals on its peripheral surface, and a mechanical switch 81 is disposed along the circumferential surface of the cam 80. The front end of the mounting rod 83 of the mechanical switch 81 protrudes from the roller-shaped contact portion 82, and the contact portion 82 is pushed up by the cam portions 80a, 80b, and 80c, whereby the rotary switch mounting lever 83 activates the mechanical switch 81 to generate the above. The version of the timing signal.

The circumferential surface protruding portion 800a of the cam portion 80a is continuously provided, and is a signal for detecting the initial position.

The cam portions 80b and 80c are formed with screw fixing holes 800b and 800c, and the screw 80 is inserted into the portion to fix the cam 80 to the shaft 70. The peripheral surface mounting position of the cam 80 when it is fixed to the shaft 70 is adjustable.

The commemorative coin raw material plate 78 is a pattern in which the plate forming timing signal produced according to the above configuration is dropped, and the plate is transferred by the version selected by the user. Since the roll surface is a circumferential surface, the commemorative coin transferred with the pattern becomes curved, and the curved commemorative coin is dropped under the plate forming mechanism and then sold out of the device.

In the plate forming mechanism of the above configuration, when the position of the cam portion of the cam 80 and the position of each plate are often at the correct positions, the pattern is formed at the center of the commemorative coin.

However, when the plate is made, there will be deviations in the manufacturing of the plate. When the plate is installed in the machine, there will be a deviation in the assembly. When the gear is engaged, the assembly will be biased, and the rolling action will be repeated. Offset. Therefore, it is necessary to adjust so that the position of the plate conforms to the unevenness of the cam portion.

[Patent Document 1] Japanese Laid-Open Patent Publication No. 2005-74854 (Patent Document 2)

As described above, the cam is mounted on the rotating shaft, and the mechanism for detecting the position of the plate by the concave and convex of the cam is difficult to adjust. Therefore, the applicant of the present invention proposes a method of electrically detecting the position by using an optical sensor for detecting the position. The position information of the rotary axis is set in advance to match the pulse number information of each position, so that the commemorative coin can be separately published for each version (the position where the pattern can be formed in the center of the commemorative coin raw material plate) The position adjustment mechanism of the plate imprinting device. In this way, even if the plate is misaligned due to variations in the manufacturing of the plate produced during the production of the plate, the plate can be easily adjusted to the correct position.

The above proposal is to take into consideration the deviation of the individual motor or the assembly deviation of the power transmission mechanism such as the gear and the chain, or the position of the plate just between the narrow groove and the narrow groove, as long as the device is adjusted in the manufacture of the commemorative coin. The position can cope with the above deviation problem. However, there are still many things that can cause deviations during the operation of the device. For example, a change in the rotational speed of the rotating shaft caused by wear of a power transmission mechanism such as a gear or a chain or a motor wear due to long-term use may cause the number of revolutions to change.

In the above situation, you must change the information of the location at any time. Therefore, it is necessary to automatically correct the position of the motor to the correct position in response to a change in the number of rotations caused by the motor individual deviation being somewhat faster and slower, or the power transmission mechanism, the wear of the motor, etc. due to long-term use.

In addition, conventional commemorative coin-type imprinting devices of this prior art do not have a mechanism for adjusting the position of the plate using the light pulse. Although there is a rotation encoder for detecting rotation from the viewpoint of a printing device using an encoder, it is possible to detect whether or not the main body of the plate is placed on the outer surface of the plate. (Patent Document 1), but the applicant of the present invention compared the above techniques and found that it has little relevance to the present invention.

Further, there is a technique of Patent Document 2 in which transfer is performed by means of a roll forming plate uneven pattern, but a technique for accurately detecting a publishing position is not disclosed.

It is an object of the present invention to provide a measurement of the rotational speed of a motor at each start of rotation of the motor, and calculation of information (distance) from the current rotational speed of the motor and the position of the plate set in advance to produce a plate forming at an appropriate position. The timing of the timing signal, so that when the version reaches the narrow slot position near the target position, the position correction circuit of the plate forming mechanism of the plate finalizing position can be automatically fine-tuned.

In order to achieve the above object, the first aspect of the patent application of the present invention has a embossed coin raw material plate stopped at a designated position of the guide rail, and a calender roll and a rotating surface which are flattened by the plate rotation driving means are provided with a plate. The mechanism for simultaneously rotating the plate mounting rolls of the above version is provided with: an optical sensor for detecting a position of the above-mentioned plate mounting roller having a plurality of narrow grooves on the circumference and detecting the narrow groove; An optical sensor for detecting an origin position at which a reference piece for detecting an origin position is simultaneously detected on a circumferential surface of a disk of a plurality of narrow grooves; and when the plate mounting roller starts to rotate to make the origin position When the detection optical pickup detects the reference piece, the position detecting optical sensor detects the reference piece until the narrow groove near the target position set in advance by the plate is set. The number of pulses is measured, and the plate forming timing signal generating means for outputting the plate forming timing signal is outputted from the plate position when the predetermined number of pulses is measured, and the forming timing signal can be formed according to the above-mentioned version. And moving the stopped commemorative coin raw material sheet to the contact surface of the calender roll and the plate mounting roller, and sandwiching the commemorative coin raw material plate between the calender roll and the plate mounting roll for calendering to make the plate irregular pattern A commemorative coin printing device for transferring a commemorative coin sheet to form a curved commemorative coin, and then selling the commemorative coin, characterized in that: the time between the narrow grooves is performed Measuring a motor rotation speed calculation means for calculating a rotation speed of the motor; and a predetermined distance from the plate position when the predetermined number of pulses is set to the final target position and the motor rotation speed calculation means The calculated motor rotation speed can calculate the time calculation means for the time, and calculate the motor rotation speed after the motor rotation starts. By correcting the previously set time to the time calculated by the time calculation means, even when the motor rotation speed is changed, the position of the plate on which the plate forming timing signal is generated can be kept at the position of the plate mounting roller. The central position of the fallen commemorative coins is formed in a position with a pattern.

According to a second aspect of the invention, the motor rotation speed calculated by the motor rotation speed calculation means is adjacent to the rotation of the motor. The time between the narrow grooves is measured in a plurality of times to calculate the average time between the narrow grooves and the average motor rotation speed obtained.

The third item of the patent application scope of the present invention is the first in the scope of patent application. According to a second aspect of the invention, the plate forming timing signal generating means is configured to: when the home position detecting optical sensor detects the reference piece, the origin position a pulse number calculating means for measuring the number of pulses up to the narrow groove in the vicinity of the target position set in advance by the optical sensor for detecting the reference piece; and calculating the preset amount from the pulse number calculating means The plate position at the time of a good pulse number is constituted by a time measuring means for measuring the time set in advance, and has a time adjustment means for adjusting the previously set time by the operation of the start knob, and the correction time is prior The set time or the time set by the time adjustment means by the time adjustment means.

According to the above configuration, even if the rotation number of the power transmission mechanism, the wear of the motor, or the like is changed for the individual motor or the use of the motor for a long time, the correct position information can be obtained, so that the position information correction is not required. In addition, even if the motor is replaced, it can be corrected to the same plate position.

[Best Embodiment of the Invention]

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings and the like.

Figure 1 is a plate forming machine showing the position correction circuit of the present invention. A perspective view of an embodiment of the structure. The portions of the mechanism portions illustrated in the drawings and Fig. 7 are labeled with the same reference numerals to have the same function, and a narrow grooved disk 1 having a rotary encoder function is provided in front of the gear 72.

Each of the narrow grooves 2 of the narrow grooved disk 1 is provided with 36 along the circumferential surface. In order to detect the narrow groove 2, the position detecting optical sensor 3 is attached to the roller attachment plate 69 (not shown in FIGS. 1 and 7).

The position detecting optical sensor 3 is composed of a light emitting element portion and a light receiving element portion, and the light emitting element portion and the light receiving element portion are narrow groove groups arranged to sandwich the circumferential surface of the narrow groove disk 1. The light-receiving element portion detects the light emission from the light-emitting element portion to detect the narrow groove, and outputs the narrow groove detection display signal from the light-receiving element portion.

Further, the reference sheet 5 is fixed to the circumferential surface of the narrow grooved disk 1, and the optical position detector 4 for detecting the origin position of the reference piece 5 is attached to the roller attachment plate 69. Similarly, the origin position detecting optical sensor 4 and the position detecting optical sensor 3 are composed of a light emitting element portion and a light receiving element portion, and when the gear 72 rotates, the reference sheet 5 reaches between the light emitting element portion and the light receiving element portion. The light emitted from the light-emitting element portion is shielded, whereby the light-receiving element portion detects the position of the origin of the reference piece and outputs an origin position detecting signal. The initial stop position of the reference piece 5 is set to a position where the rotation of the motor is stabilized when the motor starts to rotate and the reference piece 5 reaches the origin position detecting optical sensor 4.

Fig. 2 is a block diagram showing the circuit configuration of a commemorative coin printing apparatus using a plate forming mechanism of the position correcting circuit of the present invention.

Each circuit unit is mounted on the control circuit board 10, and the CPU 14 is connected The ROM 18, the RAM 19, and the invariant memory unit 20. Further, the CPU 14 is connected to a motor drive unit 17 formed by a switch for driving a switch of a plate rotation motor (plate rotation drive means) 61, and a sensor for detecting the origin position detecting sensor 4 and the position detecting optical sensor 3, respectively. The sensor controls the input/output circuit 16, and the electromagnetic coil control input/output circuit 15 for controlling the coin suspension electromagnetic coil 11. Further, the CPU 14 is further connected to an A/D converter 13 that converts analog voltages from the three plate position adjusting potentiometers 12a, 12b, and 12c into A/D voltages.

The ROM 18 stores a control program for driving the plate forming mechanism and various data used when the control program is driven.

The invariable memory unit 20 stores the set pulse number data n ₁ , n ₂ , and n ₃ set for the three versions, and the set time data t ₁ , t ₂ , and t ₃ set for the three versions, respectively, and the vicinity of the target position. The distance 1 from the slot position (the position where the number of pulses set in advance is measured) to the final target position. The set time data is changed by the usable position adjustment potentiometers 12a, 12b, and 12c centering on the time set in advance. Each of the position adjustment potentiometers 12a, 12b, and 12c can adjust the set time data t ₁ and t ₂ independently for each plate in order to adjust the plate offset or the like of the individual manufacturing cause when the device is assembled. t ₃ .

The RAM 19 is used as a work area when the CPU 14 performs calculations and the like, and the RAM 19 temporarily stores data.

The CPU 14 reads and executes the control program from the ROM 18, thereby realizing the plate forming control unit 14a, the pulse number calculating unit 14b, the time measuring unit 14c, the time adjustment calculating unit 14d, and the motor average rotational speed calculating unit 14e. And each functional unit of the correction time calculation unit 14f.

The plate forming control unit 14a is the management and control of the entire execution device, that is, the control of the plate forming mechanism unit corresponding to the execution of the coin input, and the arithmetic control corresponding to the input from the plate position adjusting potentiometer 12, and the origin. The input/output control of the position detecting optical sensor 4 and the position detecting optical sensor 3, the driving control of the commemorative coin suspension electromagnetic coil 11 and the plate rotation motor 61, and the like.

When the knobs of the position adjustment potentiometers 12a, 12b, and 12c are operated, the analog voltage that has been manipulated and changed is converted into a digital voltage by the A/D converter 13. The time adjustment calculation unit 14d calculates the time-varying portion of the digital voltage, and updates the set time data t ₁ , t ₂ , and t ₃ that have been set in advance in the invariable memory unit 20 .

The pulse number calculating unit 14b calculates the number of pulses generated by the narrow position detected by the pulse position detecting optical sensor 3 from the origin position.

The time measuring unit 14c starts the measurement time from the time point when the number of pulses calculated by the pulse number calculating unit 14b becomes n ₁ , n ₂ , and n ₃ . Version control portion 14a is formed at the time measuring unit 14c measured time becomes t _1, t _{2, 3} t, the output of the solenoid control circuit 15 sends a solenoid driving signal (timing signal forming Edition).

The motor average rotation speed calculation unit 14e detects the number of pulses from the origin position when the pulse number calculation unit 14b starts, but obtains the time between the pulses of the adjacent narrow slots when the rotation is performed, and the adjacent number is connected to the plural. The chronograph time is obtained between the narrow slots to calculate the average motor rotation speed.

The equations for calculating the average rotational speed of the motor are shown in equations (1) and (2).

V _M =A/t ₁ .........(1) V _Mav =Σ V _{M /m.........(2} )

Only A: constant (corresponding to the distance between narrow slots) V _M : motor rotation speed between adjacent narrow slots V _Mav : motor rotation average speed t ₁ : timing time between pulses generated by adjacent narrow slots m : Measured time count of adjacent narrow slots

The correction time calculation unit 14f is a distance from the narrow groove position in the vicinity of the target position (the plate position when the number of pulses set in advance is measured) to the final target position, and the motor average rotation speed calculated by the motor average rotation speed calculation unit 14e. The correction time is calculated using the calculation formula shown in the equation (3).

t _amen =1/V _Mav .........(3)

Only t _amen : Correction time 1: the distance from the narrow slot position near the target position (the position where the preset number of pulses is measured) to the final target position

The correction time t _amen calculated by the correction time calculation unit 14 f is used _instead of the set time data t ₁ , t ₂ , and t ₃ set in advance or the updated set time data t ₁ , t ₂ , and t _{3 which are} set in advance.

Figure 3 is a flow chart for explaining the molding process of the commemorative coin of the present invention. the following The details of the plate forming process will be described with reference to FIGS. 1 , 2 , 5 , and 6 . The steps surrounded by the two-dotted line are part of the process directly related to the present invention.

When the commemorative coin purchaser inputs 100 yen of the Japanese yen in the coin input unit 55, the plate forming control unit 14a confirms that the coin inserted is a predetermined coin [step (hereinafter referred to as "S") 001]. As a result, the commemorative coin feeding hopper which accumulates the commemorative coin sheet of most commemorative coins starts to discharge one commemorative coin raw material sheet 78 at the entrance of the guide rail 77 (S002). The commemorative coin stocking plate 78 is intended to fall along the guide rails 77, but the commemorative coin stocking plate 78 can be stopped to descend downstream (S003) because the commemorative coin suspension plunger 84 protrudes from the guide rail 77.

On the other hand, the plate forming control unit 14a lights up the light bulbs of the three plate selection buttons on the pattern selection panel 54 that can select different patterns, thereby urging the commemorative coin purchaser to press the desired plate selection button.

When the plate forming control unit 14a confirms that the commemorative coin purchaser has executed the plate selection (S004), the drive signal is sent to the motor drive unit 17 to rotate the plate rotation motor 61 according to the signal transmitted from the pattern selection button ( S005).

The rotational force of the plate rotation motor 61 is transmitted to the chain 64 through the transmission shaft 62 and the gear 63, and is transmitted to the shaft 70 after the gear 65 is decelerated. The rotation of the shaft 70 is transmitted to the shaft 73 through the gears 71 and 72, and the rolling roller 74 and the plate mounting roller 75 start to rotate, and the narrow grooved disk 1 also starts to rotate.

The initial position of the plate mounting roller 75 is such that the optical sensor 4 for the origin position detection stops the reference piece 5 at the predetermined angle only at the predetermined position. When the reference sheet 5 passes the optical position detecting optical sensor 4, the position detecting signal is output from the light receiving element portion of the position detecting optical sensor 4.

When the plate forming control unit 14a receives the origin position detecting signal, the number of the pulse number measuring unit (calculator) 14b is reset to zero, and the pulse number measuring unit 14b starts detecting the position detecting optical sensor 4. The number of pulses is calculated (S006).

The motor average rotation speed calculation unit 14e measures the time measured between the pulses adjacent to the pulse measured by the pulse number calculation unit 14b as the plate rotates, and performs the calculation of the equation (1) to obtain the rotation speed of the motor (S007). ). This step is performed, for example, in sequence until a narrow groove near the target position generates a pulse, and then the operation of the equation (2) is performed to thereby obtain the average speed V _{Mav of the} motor. Next, the correction time calculation unit 14f calculates the correction time relative to the distance 1 from the plate position final plate position set in advance by the equation (3) for the average rotation speed of the motor (S008).

Then, the rotation of the motor (plate) causes the pulse number counting unit 14b to detect the number of pulses in the narrow groove (S009), and the plate forming control unit 14a, for example, when the selected plate is the first plate 76a, is from the invariant memory portion. 20 The set pulse number data n _{1 is} read, and it is determined whether or not the calculated set pulse number data n ₁ is calculated (S010). When the calculation has reached the first plate 76a of the pre-configured information on the number of pulses n _1, it is then time measuring unit 14c have reached the set pulse number is calculated from the data n to the time point ₁ starts the correction time calculation unit 14f calculates the correction The calculation is performed until the time is allowed to rotate (S011).

The plate molding control unit 14a outputs a plate forming timing signal to the electromagnetic coil control input/output circuit 15 when the first plate 76a reaches the final plate position, and the electromagnetic coil control input/output circuit 15 drives the commemorative coin suspension electromagnetic coil to be retracted into the plunger 84. As a result, the commemorative coin stock sheet 78 is dropped along the guide rail 77 (S012).

In the above operation, if the selected version is the second version 76b, the set pulse number data n _{2 is used} , and when the selected version is the third version 76c, the set pulse number data n _{3 is used} .

The fallen commemorative coin raw material plate 78 is sandwiched between the calender roll 74 and the plate front end position of the plate mounting roller 75, and the commemorative coin raw material plate 78 is formed at the center of the commemorative coin raw material plate 78 while being calendered on one side. There is a version of the pattern (S013).

The calendered commemorative coin is dropped on the lower portion of the plate forming mechanism, and is slid down the ramp to the commemorative coin selling portion 58 (S014). After the plate forming control unit 14a drops the commemorative coin, the plate mounting roller 75 stops the motor when the plate mounting roller 75 returns to the initial position where the rotation starts (S015).

Fig. 4 is a timing chart for explaining the first version of the adjustment position.

As is apparent from the figure, the circumferential portion of the narrow grooved disk 1 is developed in the direction of the time axis to describe the pulse generated by the narrow groove. Although the origin detection position is the same position for each version, the number of pulses generated from the origin detection position is the first version n ₁ , and the time after the number of set pulses is calculated is t ₁ . Therefore, from the times t ₁ from the version of each rotation becomes the measured average speed of the motor calculated correction time t _amen. The correction time is short when the motor rotation speed is not faster than the set time adjusted at the time of manufacture, and is long if it is not slower than the set time. When the selected version is the condition of the second edition and the third edition, the correction time t _amen calculated by the average motor speed measured per rotation is also used. Therefore, for the first edition, the second edition, and the third edition, it is based on the origin detection start (pulse number n ₁ + time t _amen ), (pulse number n ₂ + time t _amen ), (pulse number n ₃ + time t The time until _amen ) outputs the timing signal for the commemorative coin drop. In this way, when the device is assembled, the plate position adjustment potentiometer is adjusted so that the plate pattern is formed in the center of the commemorative coin, and the number of rotations is changed even if the power transmission mechanism and the motor are worn out due to long-term use, or the commemoration of the plate. The coin rolling operation will be corrected with the time data set at the beginning to form the pattern in the center of the commemorative coin.

The above embodiment is an example in which the distances from the narrow groove pulse near the target plate position to the final target plate position are the same distance 1 for the first edition, the second edition, and the third edition. In the first edition, the second edition, and the third edition, when the above distances are different distances l ₁ , l ₂ , and l ₃ , the calculation of the correction time for each edition can be performed by using the respective distances. Therefore, the present invention can correspond to a situation in which the distance from the narrow groove pulse near the target plate position of each plate to the final target plate position is different.

In addition, in the case of the assembly variation at the time of manufacture of the potentiometer adjustment device for the plate position adjustment, the time set in advance for the first edition, the second edition, and the third edition is t ₁ , t ₂ , and t _{3 .} However, the same set time t may be used to make the set time t become t _amen when the device is operated.

[Industrial Applicability]

The invention can be applied as a commemorative coin vending machine which can be automatically adjusted in the open position display facility and the exhibition hall.

1‧‧‧Narrow slotted disc

2‧‧‧Narrow slot

3‧‧‧Optical sensor for position detection

4‧‧‧Optical sensor for origin position detection

5‧‧‧ reference film

11‧‧‧Commemorative coin suspension solenoid

12‧‧‧ Position Adjustment Potentiometer (VR)

13‧‧‧A/D converter

14‧‧‧CPU

17‧‧"Motor Drives (SSR)

51‧‧‧Commemorative coin printing device

54‧‧‧ version selection panel

55‧‧‧Coin Investment Department

56‧‧‧Commemorative coin purchase step display section

58‧‧‧Commemorative coin sales department

61‧‧‧Motor

62, 70, 73‧‧‧ axes

63, 65, 71, 72‧‧‧ gears

64‧‧‧Chain

66‧‧‧Fixed base

68, 69‧‧‧ Roller mounting plate

74‧‧‧ calender rolls

75‧‧‧ version of the mounting roller

76a, 76b, 76c‧‧ version

77‧‧‧rails

78‧‧‧Commemorative coins raw material board

80‧‧‧ cam

80a, 80b, 80c‧‧‧ cam department

81‧‧‧Mechanical switch

82‧‧‧Contacts

83‧‧‧Installation rod

Fig. 1 is a perspective view showing an embodiment of a plate forming mechanism having an automatic position correction function of the present invention.

Fig. 2 is a block diagram showing the circuit configuration of a commemorative coin printing apparatus using a plate forming mechanism having the position correcting function of the present invention.

Figure 3 is a flow chart for explaining the molding process of the commemorative coin of the present invention.

Figure 4 is a timing chart for explaining the position adjustment of each version.

Fig. 5 is a perspective view showing the appearance of a commemorative coin printing device.

Figure 6 is a perspective view of the plate forming mechanism of the commemorative coin printing device of Figure 5.

Fig. 7 is a perspective view of Fig. 6 as seen from the back of the upper position.

Fig. 8 is a right side view of Fig. 6.

Figure 9 is a plan view of Figure 6.

Figure 10 is a cross-sectional view of the A-A line as seen from the front.

1‧‧‧Narrow slotted disc

2‧‧‧Narrow slot

3‧‧‧Optical sensor for position detection

4‧‧‧Optical sensor for origin position detection

5‧‧‧ reference film

65‧‧‧ Gears

68‧‧‧Roll mounting plate

72‧‧‧ Gears

73‧‧‧Axis

74‧‧‧ calender rolls

75‧‧‧ version of the mounting roller

76a‧‧ version

77‧‧‧rails

78‧‧‧Commemorative coins raw material board

84‧‧‧Electromagnetic coil plunger

Claims (3)

A plate position correction circuit for a plate forming mechanism has a plate for mounting a commemorative coin raw material plate at a predetermined position of a guide rail, and a rolling roller and a rotating surface which are flattened by a plate rotation driving means are mounted with one plate or more. a mechanism for simultaneously rotating a roller, comprising: an optical sensor for position detection in which a disk having a plurality of narrow grooves is provided on a peripheral surface of the plate mounting roller and a narrow groove is detected; and a plurality of narrow grooves are provided An optical sensor for detecting an origin position detecting the reference piece for detecting the position of the origin, and an optical sensor for detecting the origin position when the plate mounting roller starts rotating; When the detector detects the reference sheet, the number of pulses from the time when the origin position detecting optical sensor detects the reference piece to the narrow groove in the vicinity of the target position set in advance by the plate is measured, and the measurement is performed. When the preset position of the pulse number is set in advance, the plate forming timing signal generating means of the plate forming timing signal is outputted. The commemorative coin raw material plate which is stopped may be moved to the contact surface of the calender roll and the plate mounting roller according to the above-mentioned plate forming timing signal, and a commemorative coin raw material plate is sandwiched between the calender roll and the plate mounting roller. A commemorative coin-type imprinting apparatus for calendering, transferring a concave-convex pattern of a plate to a commemorative coin raw material sheet to form a curved commemorative coin, and then selling the commemorative coin, characterized in that: a motor rotation speed calculation means for calculating a time between the narrow grooves and calculating a rotation speed of the motor; and The time calculation means for calculating the time based on the predetermined distance from the plate position when the predetermined number of pulses is set to the final target position and the motor rotation speed calculated by the motor rotation speed calculation means The motor rotation speed after the start of the motor rotation can be calculated, and the time set in advance can be corrected to the time calculated by the time calculation means, so that even when the motor rotation speed fluctuates, the version in which the plate forming timing signal is generated can be obtained. The position on the plate mounting roller is often maintained at a position where a layout pattern can be formed at the center of the commemorative coin sheet. The plate position correction circuit of the plate forming mechanism according to the first aspect of the invention, wherein the motor rotation speed calculated by the motor rotation speed calculation means is a time between adjacent narrow grooves when the motor rotates. The plurality of measurements are performed to calculate the average motor rotation speed obtained by the average time between the narrow grooves. The plate position correction circuit of the plate forming mechanism according to the first or the second aspect of the invention, wherein the plate forming timing signal generating means is: when the origin position detecting optical sensor detects the above In the case of the reference piece, the number-of-pulse calculation means for calculating the number of pulses from the position of the reference piece to the narrow groove in the vicinity of the target position set in advance by the above-mentioned plate by the origin position detecting optical sensor; The pulse number calculation means is configured to calculate a time measuring means for measuring a predetermined number of pulses when the number of pulses set in advance is set, and the time measuring means for adjusting the predetermined time by adjusting the operation of the knob Time adjustment means, The correction time is a time set in advance or a time adjusted by the time adjustment means by the time set in advance.