JPH0676249A - Device for cleaning magnetic head - Google Patents

Abstract

PURPOSE:To stably process magnetic data by providing a film sheet interposing between a magnetic head and a pad roller allowing magnetic data processing for a magnetic medium and a means moving the sheet. CONSTITUTION:A magnetic head cleaning device 17 is constituted of a film sheet 19 lying between a pad roller 18 corresponding vertically holding a horizontal examination of tickets system transfer path 13a and the magnetic head 16 therebetween and a film sheet moving mechanism 20. In such a manner, the film sheet is interposed between the magnetic head 16 and the pad roller 18, and since the magnetic head 16 is in the state of covered by the sheet 19, dust exists there is attracted to the film sheet 19, and is not stuck to the magnetic head 16, and then the contact corresponding surface of the magnetic head 16 is protected from dust always.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head which is internally constructed in, for example, a data processing section of an automatic ticket gate for station affairs, and more specifically, to automatically clean a contact-contact surface of the magnetic head. Magnetic head cleaning device.

[0002]

2. Description of the Related Art Generally, a magnetic head of this type is installed in a conveying path of a magnetic medium so as to face a contact roller, and magnetic data is written and read on a magnetic medium introduced between the magnetic head and the contact roller. Then, magnetic data processing is performed.

However, if the magnetic head becomes dirty due to the environment of use or long-term use, the magnetic data performance of the magnetic head deteriorates and causes troubles. Had to be cleaned regularly. Further, since this cleaning work is manually carried out by a staff member, it takes much time to clean, and there is a problem that the cleaning work efficiency and the reliability of magnetic data performance are low.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a cleaning device for a magnetic head is capable of automatically removing the adhesion of dirt without cleaning the contact surface of the magnetic head by an operator. For the purpose of providing.

[0005]

SUMMARY OF THE INVENTION The present invention is a magnetic head cleaning device for cleaning the contact corresponding surfaces of a magnetic head and a contact roller that are opposed to each other with a transport path for a magnetic medium interposed therebetween. Between the head and the contact roller, there are provided a film sheet which allows magnetic data processing on the magnetic medium and is interposed, and a film sheet moving means for moving the film sheet.

Further, a roller holder for holding one of the magnetic heads, which are opposed to each other with the magnetic medium conveying path sandwiched therebetween, for holding the contact roller and the cleaning roller so as to be switchable to the other magnetic head which faces the magnetic head. A cleaning device for a magnetic head, comprising: switching means for switching the roller holder.

[0007]

According to the present invention, magnetic data is processed by allowing the magnetic medium to pass while the film sheet is interposed between the magnetic head and the contact roller. When the contact corresponding surface between the magnetic head and the contact roller is contaminated, the dirt is adsorbed by the film sheet interposed between the magnetic head and the contact roller and attached to the magnetic head. Without wearing it, the contact surface of this magnetic head is always protected from dirt. Furthermore, since it is possible to easily determine the degree of dirt that adversely affects magnetic data processing from the magnetic output waveform of the magnetic head, immediately drive the film sheet moving means when it is determined that the film sheet is dirty and unsuitable for magnetic data processing. Then, the film sheet is moved, and magnetic data processing is performed so as to correspond to the new film sheet surface.

When cleaning the contact corresponding surface of the magnetic head, the switching means switches the roller holder to switch the contact roller facing the magnetic head to the cleaning roller.
The cleaning roller thus switched is brought into contact with the magnetic head for cleaning, and after the cleaning is completed, the roller holder is reversibly switched to immediately switch from the cleaning roller to the original contact roller side to recover.

[0009]

As described above, since dirt such as dust that adversely affects magnetic data processing is attracted to the film sheet side and the contact-contact surface of the magnetic head is less likely to be dirty, the magnetic head is prevented from becoming dirty and high in height. Stable magnetic data processing that ensures performance and high reliability is possible.

Further, when cleaning the contact corresponding surface of the magnetic head, the contact corresponding surface of the magnetic head can be contacted by reversibly switching from the contact roller to the cleaning roller. Therefore, the cleaning process can be performed in a short time and the cleaning operation can be automatically performed by switching, so that the cleaning work efficiency and the reliability of the magnetic data processing performance are surely improved.

[0011]

Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an internal configuration diagram of an automatic ticket gate. A ticket processing unit 11 of the automatic ticket gate uses a magnetic medium T such as a ticket or a card inserted from a ticket slot 12 at one end to a ticket processing system 13
Ejection processing is performed from the ticket ejection port 14 at the other end through the alignment section A, the magnetic data processing section B, the front and back reversing section C, the punch unit section D, the thermal printing section E, and the ejection section F.

In the above-mentioned aligning section A, the loaded magnetic media T are width-aligned in a predetermined direction by the width-shifting roller 15 which is eccentrically rotated, and are supplied to the magnetic data processing section B at the subsequent stage one by one.
The supplied magnetic medium T is subjected to magnetic data processing by the reading section B1, the writing section B2 and the reading check section B3 of the magnetic data processing section B. The magnetic heads 16 for processing the face information are arranged in a pair of upper and lower sides corresponding to the front and back sides of the magnetic medium T.

The magnetic medium T having the magnetic data is
The front and back are reversed by the front and back reversing section C in the subsequent stage to align the front and back,
The punching unit D punches holes as needed for confirmation, and the thermal printing unit E prints predetermined ticket data, which is then ejected from the ticket ejection port 14 of the ejection unit F.

By the way, as shown in FIGS. 2 and 3, a magnetic head cleaning device 17 is provided for each of the above-mentioned magnetic heads 16 to provide a contact-free contact surface which is always suitable for magnetic data processing. To keep up.

The magnetic head cleaning device 17 has a film sheet 19 which is interposed between the pad roller 18 and the magnetic head 16 which correspond to the upper and lower sides of the conveyance passage 13a of the horizontal ticket gate processing system 13, and the film sheet 19. And a film sheet moving mechanism 20 for moving.

The film sheet 19 is formed as an ultra-thin sheet that allows magnetic data processing on the magnetic medium T when it is interposed between the pad roller 18 and the magnetic head 16, and the contact corresponding surface of the magnetic head 16 is formed. It has a wide width that covers the entire cores 16a and 16a installed in the above, and the transport direction thereof is stretched and supported by the film sheet moving mechanism 20.

In the film sheet moving mechanism 20 described above, the film sheet 19 is developed in a belt shape and stretched and supported by the supply holder 21 and the take-up holder 22 arranged at the front and rear positions in the transport direction of the magnetic head 16. The surface of the film sheet 19 in the stretched and supported intermediate portion is applied to and covers the contact corresponding surface of the magnetic head 16. On the side of the one winding holder 22 that is stretched and supported, the winding shaft 23 is rotatably supported and is rotatably supported by the frame 24.
The driven pulley 25 is fixed to one end of the driven pulley 2
5 and the drive pulley 27 fixed to the main shaft 26 of the take-up drive motor M1 and the drive belt 28 is stretched to drive the take-up drive motor M1.
In the winding direction, and in conjunction with this, the supply holder 21 side through the film sheet 19 is rotated in the rewinding direction to rewind the film sheet 19, and the rewound film sheet 19 is wound into the winding holder. Wind up on side 22.

At the front and rear positions of the magnetic head 16 in the carrying direction, a pair of upper and lower carrying rollers 29 are provided for stably carrying and guiding the guided magnetic medium T to the data processing position of the magnetic head 16. The film sheet 19 that is installed and is stretched and supported between the holders 21 and 22 is further stretched and supported by several touch rollers 30 ..., and is stretched so as to closely adhere to the contact corresponding surface of the magnetic head 16. Support.

As described above, the film sheet 19 is interposed between the magnetic head 16 and the pad roller 18, and the magnetic head 16 is covered with the film sheet 19. The magnetic head 16 is attracted and does not adhere to the magnetic head 16.
It always protects the contact surface of the from dirt.

When the film sheet 19 is soiled, the film sheet moving mechanism 20 is driven so that the new film sheet 19 surface is made to correspond to the magnetic head 16 and the cores 16a, 16a surface of the magnetic head 16 are always soiled. Set to the state without and process magnetic data.

FIG. 4 shows a block diagram of a control circuit of an automatic ticket gate equipped with the magnetic head cleaning device 17.
Each circuit device is controlled according to the program stored in the OM 42, and the control data is stored in the RAM 43 so that it can be read.

A large number of detection sensors S are provided along the ticket gate processing system 13 for the magnetic medium T, and detect the loading, discharging, and conveying positions of the magnetic medium T guided to the ticket gate processing system 13,
Further, the solenoid SOL distributes and operates the flappers arranged at the branching positions of the carrying section, and further carries the carrying drive motor M2.
Drives a transport system such as a transport belt and a width-adjusting roller.

The waveform judgment circuit 44 judges, for each magnetic data processing, from the magnetic output waveform of the magnetic head 16 whether it is an ideal output waveform suitable for magnetic data processing or an unsuitable output waveform adversely affecting it. Based on the judgment result, C
The PU 41 has a control function of driving the film sheet moving mechanism 20 to move the film sheet 19 immediately when it judges whether the dirt attached to the film sheet 19 is appropriate or not, and when it judges that the magnetic data processing becomes unsuitable. There is.

Next, the processing operation of the magnetic head cleaning device 17 will be described with reference to the flowchart of FIG. Now, when the magnetic medium T is inserted into the ticket slot 12, the magnetic medium T
After being aligned by the aligning section A, they are guided to the magnetic data processing section B (steps n1 to n2).

Here, the magnetic medium T is subjected to predetermined magnetic data processing in correspondence with the magnetic head 16. At this time, the waveform determination circuit 44 determines the output waveform of the magnetic head 16,
The magnetic medium T is properly magnetically processed so that the film sheet 19
If it is determined that there is no stain on the surface (step n3
), The CPU 41 guides the magnetically processed magnetic medium T to the subsequent processing unit to perform punching processing and thermal printing processing such as station name and date, and in the case of a commuter pass, does not perform these processings. Each is discharged to the ticket outlet 14 (steps n4 to n5).

By the way, when it is determined that the film sheet 19 is contaminated during the above-mentioned magnetic data processing, the film sheet moving mechanism 20 is driven to clean the contact-contact surface of the magnetic head 16 without contamination. The magnetic head 16 is always set to the optimum magnetic data processing state by making the film sheet 19 surface correspond (steps n6 to n7).

The processing operation for periodically operating the magnetic head cleaning device 17 will be described with reference to the flowchart of FIG. Now, when the magnetic medium T is inserted into the ticket slot 12, the magnetic medium T is aligned by the aligning section A and then guided to the magnetic data processing section B for predetermined magnetic data processing ( Steps n11 to n12).

When this magnetic data processing is performed, the magnetic medium T is guided to the subsequent stage, appropriately subjected to punching processing and thermal printing processing, and discharged to the ticket discharge port 14 (steps n13 to n14).

In this case, if the number of times of ticket inspection processing for the magnetic medium T does not reach the designated number of times, which is the limit of contamination, for example, 10,000 times, it is determined as an appropriate permissible range in which the stain on the surface of the film sheet 19 is extremely small, Although the ticket inspection process for T is permitted, if it is determined that the dirt limit has reached 10,000 times, it is determined that the dirt has slightly adhered to the film sheet 19 and is unfit for magnetic data processing. , The film sheet moving mechanism 20 is immediately driven, and the magnetic head 1
6 new film sheet with clean contact surface
The nine faces are made to correspond (steps n15 to n17).

FIGS. 7 and 8 show another embodiment of the magnetic head cleaning device of the present invention.
The reference numeral 1 designates a pad roller 73 and a magnetic head 74, which are vertically opposed to each other with a magnetic medium conveying path 72 interposed therebetween, a roller holder 76 which holds the pad roller 73 and the cleaning roller 75 in a switchable manner, and It comprises a switching mechanism 77 for switching the roller holder 76.

The roller holder 76 has a fan-shaped flat plate, and a fulcrum shaft 78 fixed to the center of the fan-shape is rotatably attached to a frame (not shown).
The pad roller 73 is rotatably supported on one side on the same radial position with respect to the center, and the cleaning roller 75 is rotatably supported on the other side.

Further, rotary teeth 79 are formed on the peripheral portion of the roller holder 76 on the fan-shaped center side, and the worm gear 80 of the switching mechanism 77 is meshed with the rotary teeth 79 to drive the gear of the switching mechanism 77. By driving the motor 81, the roller holder 76 which receives the rotational driving force of the worm gear 80 rotates in a predetermined direction with the fulcrum shaft 78 as a fulcrum.
Together with this roller holder 76, the positions of the pad roller 73 and the cleaning roller 75 are displaced and switched, so that both rollers 7
3, 75 are reversibly switchable.

The above-mentioned cleaning roller 75 is made of a sponge-based soft material suitable for cleaning the magnetic head, and is set to a slightly pressed state when pressed against the magnetic head 74. Then, when the pad roller 73 is switched to the cleaning roller 75 to clean the magnetic head 74, as shown in FIGS. 9 and 10, at the position corresponding to the magnetic head 74, the medium carrying belt 82 causes the cleaning roller to move. Rotational force is transmitted from the transport system to rotate in response to contact with the peripheral surface of the concave portion of 75, and the cleaning roller 75 receiving this rotational force rotates at a constant speed to clean the contacting surface of the magnetic head 74. After cleaning, the gear drive motor 81 is rotated in the reverse direction to switch the cleaning roller 75 to the original standby position again so that the pad roller 73 faces the magnetic head 74 and the cleaning operation is automatically completed.

As described above, dirt such as dust that adversely affects magnetic data processing is attracted to the film sheet side, and the contact-contact surface of the magnetic head becomes hard to be soiled. And stable magnetic data processing that ensures high reliability can be performed.

Further, when cleaning the contact-contacting surface of the magnetic head, the pad roller can be reversibly switched to the cleaning roller for contacting, so that the contact-contacting surface of this magnetic head does not require staff work. Since the cleaning process can be performed in a short time and the switching operation can be automatically performed, the cleaning work efficiency and the reliability of the magnetic data processing performance are surely improved.

In the correspondence between the present invention and the configuration of the above-described embodiment, the film sheet moving means of the present invention corresponds to the film sheet moving mechanism 20 and the CPU 41 of the embodiment, and hereinafter, the switching means similarly changes. Although it corresponds to the mechanism 77, the present invention is not limited to the configuration of the above-described embodiment. For example, although the motor is used as the drive source of the magnetic head cleaning device, a solenoid may be used as the drive source.

[Brief description of drawings]

FIG. 1 is an internal configuration diagram of an automatic ticket gate of the present invention.

FIG. 2 is a plan view showing a usage state of the magnetic head cleaning device of the present invention.

FIG. 3 is a side view showing a usage state of the magnetic head cleaning device of the present invention.

FIG. 4 is a control circuit block diagram of the magnetic head cleaning device of the present invention.

FIG. 5 is a flowchart showing a processing operation of the magnetic head cleaning device of the present invention.

FIG. 6 is a flowchart showing a processing operation of the magnetic head cleaning device of the present invention.

FIG. 7 is a side view showing a magnetic head cleaning device according to another embodiment of the present invention.

FIG. 8 is a vertical sectional front view showing a magnetic head cleaning device according to another embodiment of the present invention.

FIG. 9 is a side view showing a cleaning state of a magnetic head cleaning device according to another embodiment of the present invention.

FIG. 10 is a vertical sectional front view showing a cleaning state of a magnetic head cleaning device according to another embodiment of the present invention.

[Explanation of symbols]

 13a, 72 ... Transport path 16, 74 ... Magnetic head 17, 71 ... Magnetic head cleaning device 18, 73 ... Pad roller 19 ... Film sheet 20 ... Film sheet moving mechanism 41 ... CPU T ... Magnetic medium 75 ... Cleaning roller 76 ... Roller Holder 77 ... Switching mechanism

Claims (2)

[Claims] 1. A magnetic head cleaning device for cleaning a contact corresponding surface between a magnetic head and a contact roller, which are opposed to each other with a magnetic medium transport path interposed therebetween, and between the magnetic head and the contact roller. A magnetic head cleaning device, further comprising a film sheet that allows magnetic data processing on a magnetic medium to intervene, and film sheet moving means for moving the film sheet. 2. A roller holder for holding one of the magnetic heads, which are opposed to each other with a conveying path for the magnetic medium interposed therebetween, and which is capable of switching and holding a contact roller and a cleaning roller on the other side facing the magnetic head. A cleaning device for a magnetic head, comprising a switching means for switching the roller holder.