JPS5938917B2 - printing device - Google Patents

Description

[Detailed Description of the Invention] The present invention is a printing device using a thermal head,
In particular, it relates to devices for printing tickets and other tickets used in railway operations.

Configuring the ticket to be printed using a thermal head has the advantage that changes in printing patterns such as fare revisions and route expansions can be easily handled.

However, printing with a thermal head requires a certain amount of time for a certain cycle of paper feeding, cooling, and heating, and this period of time has the disadvantage that it is longer than that of conventional printing plate methods, and as a result, the ticket issuing operation is This will make customers wait and reduce the operating rate of the device. Therefore, an object of the present invention is to shorten the ticket issuing operation of a printing device using a thermal head.

Therefore, in this invention, the rolled paper is cut into a ticket in front of the thermal head, so that when the paper is cut, the leading edge of the ticket is at the printing position of the thermal head. This prevents the cutter cutting time from being added to the printing time. Furthermore, when the trailing edge of the printing position of the ticket is below the thermal head, the leading edge of the ticket is positioned at the front end of the transfer device in the next process, so that when the printing of the ticket is completed, the ticket is transferred at high speed by the transfer device. This reduces the overall time required.

Moreover, according to the present invention, even if the conveyance device is set at high speed, the second feed roller will continue to feed the paper until the thermal head finishes printing, and the transfer device will not pull it out, and the switching device will operate at the same time as printing ends. 2. At the same time as the feeding roller stops feeding, the ticket is not torn even if it is transported at high speed by the transporting device.

An embodiment of the present invention having such characteristics will be described in detail below with reference to the drawings.

The drawing shows the printing section of a ticket issuing machine used in railway operations. Tickets are issued by cutting a roll of paper 1 that makes up the ticket into ticket-sized pieces, and printing information on one side of the cut ticket using a thermal head. At the same time, magnetic recording is performed on the other side.

FIG. 1 shows a portion of a roll paper 1 cut by a cutter 2 and printed by a thermal head 3. As shown in FIG.

The guide plates 4 and 5 disposed above and below are each fixed to a fixed wall 6 in a cantilevered manner to form a transport path 7 for the roll paper 1,
A feed roller 8 is fixed to a shaft 9 below this passage 7, and this shaft 9 is supported by a fixed wall 6. A pressure roller 10 is located on the upper surface of the above-mentioned delivery roller 8, and this pressure roller 10 is urged toward the delivery roller 8 side by an appropriate spring (not shown).

For this purpose, the roll paper 1 can be fed out to a length equivalent to one ticket by driving and controlling the feeding roller 8 by a pulse motor 11 via a transmission device which will be described later.

The aforementioned pulse motor 11 is attached to the fixed wall 6, and its output voltage 2 is located on the back side of the fixed wall 6.

The intermediate valve 13 is axially mounted on the fixed wall 6, and a first timing belt 14 is stretched between the intermediate valve 13 and the output valve 12 described above.

The shaft 9 of the above-mentioned feeding roller 8 is projected to the back side of the fixed wall 6, and a pulley 15 is fixed to this projecting portion, and a second timing belt 16 is connected to this pulley 15 and the above-mentioned intermediate pulley 13. are tensioned, and the delivery roller is driven and controlled by these transmission mechanisms. A cutter 2 is positioned at the front end of the aforementioned transfer passage 7 so as to block the passage 7, and this cutter 2 is pivoted by a fixed blade 18 fixed to the fixed wall 6 via a holder 17 and a pin 19. The movable blade 20 is connected to a rod 21 that is linked to an appropriate cam mechanism (not shown), and the above-mentioned feed roller 8 feeds out the roll paper 1 for one ticket. After that, the city moved to have it cut off immediately.

A head unit 22 equipped with the above-mentioned thermal head 3 is located on the ticket dispensing side, and the head unit 22 is easily detachable from the fixed wall 6. That is, the above-mentioned head unit 22 includes, in addition to the above-mentioned thermal head 3, a first feed roller 23 and a second feed roller 23.
The feed roller 24 and platen roller 25 are connected to a unit plate 26.
The above-mentioned unit plate 2 is purchased by attaching it to the
6 is removed from the back side of the fixed wall 6 and fixed to the periphery of the hollow 27 with bolts 28.

The above-mentioned first feed roller 23, second feed roller 24, and platen roller 25 are arranged so that their upper surfaces correspond to the ticket transport path, and the first and second feed rollers 23 and 24 are arranged so as to correspond to the ticket transfer path. They are respectively fixed to shafts 29 and 30 which are positioned on both sides of the unit plate 26 and are supported by bearings on the unit plate 26.

The shafts 29 and 30 mentioned above protrude from the back side of the unit plate 26, and pulleys 31 and 32 are fixed to these protrusions, respectively. A third timing belt 34' is stretched between these pulleys 31, 32 and a pulley 33 connected to the above-mentioned intermediate pulley IJ13, and the above-mentioned first and second feed rollers 23, 24 are connected to the pulse motor 11. The drive is controlled by

Note that the above-mentioned first and second feed rollers 23 and 24 will transport the ticket for printing, and this transport speed and
The timing is set to be the same as the feeding speed by the feeding roller 8 described above.

The platen roller 25 mentioned above is located at a distance of one ticket length from the cutter 2 and is supported by a shaft 34.

The above-mentioned shaft 34 is installed on an upwardly open U-shaped member 35, and this shaft 34 is provided in a vertically movable section.

As shown in FIG. 2, the above-mentioned shaft 34 has adjustment bolts 36 inserted through its both ends, and this adjustment bolt 36 is screwed into the above-mentioned U-shaped member 35, and the adjustment bolt 36 and the above-mentioned A spring 37 is interposed between the shaft 34 and the shaft 34 .

Therefore, the above-mentioned adjustment bolts 36 provided at both ends of the shaft 34,
36, the pressing force of the platen roller 25 against the thermal head 3 can be adjusted.

The thermal head 3 is in the form of a flat body, its heating line faces the platen roller 25, and is fixed to the lower surface of a heat sink 38.

As shown in FIG. 3, the above-mentioned heat dissipation plate 38 is fixed at its side to a pivot member 39, which is pivotally attached to the above-mentioned unit plate 26 via a shaft 40, and is supported by a spring 4.
1 urges the thermal head 3 to open upward.

The other side of the heat dissipation plate 38 described above is locked by a hook 43 formed on a fixing member 42 connected to the fixing wall 6. A retaining plate 44 is provided on the front side of the aforementioned pivot member 39.
is fixed, and a rod 45 is attached to the pin 4 on this holding plate 44.
6, and a first pressing roller 47 is supported in a cantilevered manner on the rod 45 at a position facing the first feed roller 23.

The first pressing roller 47 is in contact with the first feeding roller 23 via the heat dissipation plate 38 and the through hole 48 of the thermal head 3, and is biased by a spring 49.

Note that 50 is a stopper for the rod 45. In the figure, reference numeral 51 denotes a guide plate for tickets fed out from the cutter 2 side, and is fixed to the unit plate 26.

A second pressure roller 52 is located on the upper surface side of the second feed roller 24 described above, and this second pressure roller 52 is pivotally supported by an end of a ram 53.

The above-mentioned ram 53 has its intermediate portion pivotally connected to a pin 54 provided between the fixed walls 6, and the above-mentioned second pressing roller 52
A third pressing roller 55 is pivotally supported at the opposite end.

On the lower surface side of the third pressing roller 55 described above, there is a lower transfer belt 5 for transferring the printed ticket to the magnetic recording section for the next process.
6 are arranged opposite to each other, and there is a gap between the third pressure roller 55 and the above-mentioned third pressure roller 55 so that it is not normally transferred, and the above-mentioned ram 53 moves the second pressure roller 52 downward to move away from the second feed roller 24. It is provided so that it can be transferred in contact with the lower transfer belt 56 when the transfer is carried out.

The distance between the third pressing roller 55 and the heating line of the thermal head 3 is set to be shorter than the length of one ticket, and the contact point of the upper transfer belt 57 that contacts the lower transfer belt 56 to transfer the ticket. The distance between the thermal head 3 and the heating line is set to be slightly longer than the length of one ticket.

Therefore, even if the transport speed of the upper and lower transport belts 56, 57 is set to high speed, the second
It is sent out by the feed roller 24, and the transfer belt 56,
57, and the ticket is not torn off even if the ticket is transferred at high speed by the transfer belts 56 and 57 at the same time as the lever 53 is switched and the second feed roller 24 stops feeding out at the same time as printing is completed.

The rear end of the aforementioned lever 53 is connected via a connecting rod 58 to one end of an L-shaped rod 59, and the middle portion of the L-shaped rod 59 is pivotally connected to the fixed wall 6 by a pin 60.

The spring 61 presses and urges the second pressing roller 52 toward the second feed roller L roller 24, and the solenoid 63 connected via the spring 62 is actuated to spring the aforementioned ram 53. 61 and perform the switching operation.

The initial printing state of the printing device configured as described above is a state in which the roll paper 1 is cut into the length of one ticket, the tip of which is at the position of the cutter 2, and the tip of the cut ticket is is on the heat generation line of the thermal head 3 facing the platen roller 25, and its rear end is located at the cutter 2 position.

When the pulse motor 11 is controlled by one drive based on the print command, the feed roller 8, the first and second feed rollers 23, 2
4 is driven at a constant transfer speed.

By driving the first and second feed rollers 23 and 24, the ticket placed on the thermal head 3 is transferred for printing.

The thermal head 3 prints information on the ticket, and when the printing is finished and the rear end of the ticket leaves the platen roller 25, the pulse motor 11 stops, and the first and second feed rollers 23 and 24 print the ticket. Transport will also be suspended.

Note that the feed roller 8 is the first and second feed roller 2 described above.
Since the rolled paper 1 is fed out at the same speed as 3 and 24, when the first ticket leaves the platen roller 25, the leading edge of the fed rolled paper 1 has reached the platen roller 25.

The cutter 2 then cuts this and waits for the next ticket to be issued. On the other hand, the leading edge of the ticket that has been printed has already passed the third pressing roller 55, and when the solenoid 63 is operated following the stop of the pulse motor 11, the ram 53
is switched, the second pressure roller 52 moves upward and separates from the second feed roller 24, and the third pressure roller 55 moves downward and comes into contact with the lower transfer belt 56.

The lower and upper transfer belts 56 and 57 are driven in the transfer direction and are on standby when a printing command is issued, and the tickets are transferred by the downward movement of the third pressure roller 55. Transport.

After that, the ticket is transferred to a magnetic recording section, information is magnetically recorded on the magnetic part, and the ticket is issued.

In printing using the thermal head 3 described above, if the ticket jams during printing, the thermal head 3 is opened to remove it. That is, by removing the hook 43, the heat sink 38 is moved upward by the biasing force of the spring 41, so that the thermal head 3 is opened and the jammed ticket can be removed.

Furthermore, when replacing the thermal head 3, the head unit 22 is removed.

That is, remove the bolts 28 and attach the unit plate 26 to the fixed wall 6.
When the head unit 22 is removed, the pressure of the platen roller 25 can be easily adjusted.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of the printing section of a ticket issuing machine, FIG. 2 is a side view of the head unit, and FIG. 3 is a plan view thereof. 1...Roll paper, 2...Katsuta, 3.
...Thermal head, 23...First feed roller, 24...Second feed roller, 25...
. . . Braten roller, 52 . . . Second pressing roller, 53 .

Claims (1)

[Claims] 1. A cutter for cutting roll paper into ticket size, a thermal head having a heat generation line separated from the cutter by a distance of one ticket, a platen roller installed opposite to the heat generation line of the thermal head, and the cutter. and a second feed roller located on the opposite side of the first feed roller with the platen roller in between.
a feed roller, a high-speed transfer device for the next process provided after the second feed roller, and a second press roller and a third press roller provided corresponding to the second feed roller and the transfer device, respectively. , a switching device that alternately operates the second pressing roller to contact the second feeding roller until the printing on the ticket by the thermal head is finished, and to bring the third pressing roller into contact with the transfer device at the same time as printing is finished; When the rear end of the ticket is located below the heat generation line of the thermal head, the rear end of the transfer device is placed one ticket at a time with respect to the thermal head so that the leading edge of the ticket is located at the front end of the transfer device. A printing device characterized in that it is arranged slightly closer than the length of.