JP2579010B2 - How to print medicine packaging paper - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for printing a medicine packaging paper for packaging medicines such as powders and tablets.

[Conventional technology]

The heat fusible wrapping paper is transferred in one direction, and at the time of the transfer, the wrapping paper is folded in two in the width direction, or the pre-folded wrapping paper is sent in one direction, and the wrapping paper is transferred in one direction. A medicine supply chute and a sealing device are provided in the transfer path, an operation of intermittently supplying a fixed amount of medicine between the folds of the wrapping paper from the chute, and the width direction of the wrapping paper by the sealing device when the wrapping paper is transferred. 2. Description of the Related Art A medicine packaging apparatus for continuously forming a package containing a fixed amount of medicine by performing an operation of heat sealing both side edges is conventionally known.

The sachet taken out of the medicine packaging device is usually
The medicine is stored in a medicine bag and handed to a patient, and there are many kinds of medicines packed by the medicine packing apparatus, and there are similar ones. In addition, since it is difficult to accurately determine the type of medicine from the outside when the package is packaged, there is a case where the package is mistaken for another patient when the package is stored in the medicine bag.

Since such mistakes are extremely dangerous, in recent years, as shown in FIG. 6, a patient name, a medicine name, usage, and the like are printed B on a sachet A.

If the above printing is performed after the packaging of the medicine, the packaging bag may be broken, so that the medicine is usually packaged after the printing on the packaging paper.

[Problems to be solved by the invention]

Conventionally, when printing on a wrapper, a printer head is provided in the transfer path of the wrapper, and when the wrapper is stopped, the printer head is moved in the transfer direction of the wrapper to perform printing. However, there is an inconvenience that it takes a lot of trouble and the packing efficiency of the drug packing machine is reduced.

Accordingly, it is a technical object of the present invention to solve the above-mentioned inconveniences, to shorten the printing time on the packaging paper, and to improve the packaging efficiency of the pharmaceutical packaging machine.

[Means for solving the problem]

In order to solve the above-mentioned problems, in the present invention, two printer heads are provided at predetermined intervals in the transport direction along the transport path of the medicine packaging paper, and the printer heads provided above and below are connected. An ink ribbon is arranged on the line so as to face the printer head, and an encoder is provided between the printer heads to detect a feed amount of the medicine packaging paper from a rotation amount of a detection roller rotated by contact with the medicine packaging paper. Then, a method is adopted in which the medicine packaging paper is moved with respect to the fixed printer head, and at that time, the printer head is operated based on the feed amount data from the encoder to perform printing.

[Action]

In the printing method of the medicine packaging paper configured as described above, since the printing is performed while the medicine packaging paper is being transferred, the printing operation can be performed efficiently.

At this time, by arranging the printer head up and down, two rows of printing can be performed at once on the medicine package moving on the transfer path without moving the printer head.

Also, at this time, the ink ribbon is arranged on a line connecting the printer heads provided above and below at predetermined intervals, so that, for example, a wide ink ribbon or a single ink ribbon can be provided without providing an ink ribbon for each printer head. Can print two lines on the packing paper.

Furthermore, the encoder detects the amount of movement of the medicine packaging paper itself, and can operate the printer head based on the amount of movement. At this time, since the detection rod is provided between the printer heads, the detection roller can be arranged closest to the two print heads. Therefore, the detection rollers detect the transport amount of the wrapping paper in the vicinity of both printer heads, and the two printer heads can perform printing at a predetermined position on the wrapping paper.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, a roll L of the heat-fusible wrapping paper is set on the support shaft 1, and the wrapping paper S is moved to the transfer path of the wrapping paper S drawn from the roll L. Guide 2
Guide rollers 2 are provided. This packaging paper S
Is transported at a constant speed in the direction of the arrow in FIG. 1 by the rotation of a feed roller (not shown).

Between the two guide rollers 2, a printer device 10 for the wrapping paper S is provided.

As shown in FIG. 2, the printer 10 has a box 11 having an open top, and two guide rollers on the box 11.
A receiving plate 13 is provided between the guide roller 12 and the guide roller 12. The wrapping paper S is guided by two guide rollers 12 and is moved along the lower surface of the receiving plate 13.

Inside the box 11, two printer heads 14 are provided below the receiving plate 13. As shown in FIG. 3, the printer head 14 is provided at a required interval vertically in the transport direction of the packaging paper S, and is displaced in a direction crossing the transport direction of the packaging paper S. I have.

As shown in FIG. 2, an endless ribbon 15 is provided inside the box body 11 so as to surround the two printer heads 14, and the ribbon 15 is provided as shown in FIG.
It is arranged on the line connecting the upper and lower printer heads 14,
It is designed to face two printer heads 14,
With one ink ribbon 15, two rows can be printed by two printer heads 14.

The upper straight portion 16 of the printer 15 passes above the printer heads 14 and is transferred by the rotation of the motor 17 in the direction of the arrow in FIG.

The printer head 14 has a number of pins 18, which are independently moved by a solenoid provided in the head 14. Here, the arrangement of the pins 18 is arbitrary, and in the case of the embodiment, as shown in FIG. 5, a plurality of pins 18 arranged linearly at regular intervals are provided in multiple rows.

As shown in FIG. 4, a solenoid 19 for independently moving the pin 18 is connected to each driver circuit 20, and the dry circuit 20 is connected to a CPU 22 via an output port 21.

The driver circuit 20 includes, for example, a dedicated IC for driving the solenoid 19, a transistor, a power element such as an FET,
Further, an IC buffer or the like may be used.

The output port 21 has a data latch function, for example,
The data on the data bus is latched by a flip-flop or a PPI (peripheral interface) at the timing from the CPU 22, and the corresponding driver 20 is driven to operate the solenoid 19.

The CPU 22 is connected with a RAM memory 23 as a buffer memory for temporarily storing output data, and a ROM memory 24 in which a monitor program for operating the printer 10 and font data for printing are written.
Is connected to the encoder 25 which detects and outputs the feed amount data.

The encoder 25 is, for example, a rotary encoder of an optical type or a magnetic type provided between the two printer heads 14 as shown in FIG. The detection roller 26 can detect the transfer amount of the wrapping paper S in the vicinity of the printer heads 14 by the pressing roller 27 which comes into contact with the roller via the wrapping paper S. When the paper S (including the heat seal allowance) moves on the printer head 14 in the transfer direction,
The detection roller 26 makes one rotation, and the data of the feed amount is detected without error.

Further, as shown in FIG. 4, for example, an I / O port 28 such as a USART or PIO for exchanging data with an external terminal 29 such as a personal computer is connected to the CPU 22.
Parallel transfer (Centronics) or serial transfer of data with the external terminal 29 is performed via a control signal C such as USY, ▲ ▼.

This embodiment is configured as described above. Now, when the printer 10 starts processing and the roll L of the wrapping paper is set on the support shaft 1, the printer 10 waits for data input. At this time, when print data is input to the external terminal 29, the external terminal 29 transfers the print data to the printer device 10.

In the printer device 10, when the print data is input, the transfer of the wrapping paper S is started at a constant speed (the transfer speed at this time is set to a speed lower than the print speed of the printer head 14). The CPU 22 sequentially reads the font data for printing from the ROM memory 24 in accordance with the input print data, and, based on the feed amount data from the encoder 25,
When detecting that the printing position of the packaging paper S has moved to the printer head 14, the CPU 22 drives the solenoid 19 corresponding to the font data by the drive circuit 20,
The pins 18 are moved to press the ribbon 15 against the wrapping paper S, and, for example, two rows of printing are performed as shown in FIG.

As described above, the printer device 10
14 is fixed and printing is performed by moving the packaging paper S, so that the starting and stopping of the packaging paper S and the printing
Since there is no loss time associated with the moving time of the camera, and two rows of printing can be performed at a time, the time required for printing can be reduced. In particular, when printing is continuously performed on the packaging paper S, the loss time is accumulated, so that the time can be significantly reduced.

〔effect〕

Since the present invention is configured as described above, the problem of the conventional medicine packaging machine, for example, eliminating the dead time associated with stopping and starting the packaging paper and moving the printer head, can be eliminated. Is provided on the upper and lower sides to perform printing in two rows at a time, so that the printing time for the wrapping paper can be shortened, so that the wrapping efficiency can be improved. Further, at this time, by arranging the ink ribbon on the line connecting the upper and lower printer heads so as to face the printer head, two lines of printing can be performed by two printer heads with one ink ribbon. For this reason, cost can be reduced.

Also, at this time, since the detection roller is provided between the two printer heads, the detection roller can be arranged closest to the two printer heads. Can be detected. Therefore, the two printer heads can print at a predetermined position on the packaging paper with high accuracy.

In addition, there is no mechanism for moving the printer head, and the mechanism is simple, so that the number of failures is reduced and the maintenance is simple.

Further, since an encoder is provided in proximity to the printer head and detects the feed amount of the medicine packaging paper from the rotation amount of the detection roller that rotates by contact with the medicine packaging paper,
The amount of movement of the medicine packaging paper at the position of the printer head can be accurately detected. For this reason, by operating the printer position based on the detection signal of the encoder, printing can be performed at a predetermined position on the medicine packaging paper with high accuracy.

[Brief description of the drawings]

1 to 5 show an embodiment of a medicine packaging paper printing method according to the present invention. FIG. 1 is a configuration diagram of a printer device, FIG. 2 is a sectional view of the same, and FIG. Partial top view of the figure,
FIG. 4 is a block diagram of the same circuit, FIG. 5 is a pin arrangement diagram of the printer head, and FIG. 6 is an example of printing on packing paper. S: medicine packaging paper, 14: printer head.

Claims (1)

(57) [Claims] 1. Two printer heads 14 are provided along a transfer path of a medicine packaging paper S at predetermined intervals in the transfer direction, and an ink ribbon 15 is formed on a line connecting the printer heads 14 provided above and below the print heads. Is disposed so as to face the printer head 14, and an encoder 25 that detects the feed amount of the medicine packaging paper S from the rotation amount of the detection roller 26 that rotates between the printer heads 14 due to the contact with the medicine packaging paper S. And a method of printing a medicine package in which the medicine packaging paper S is moved with respect to the fixed printer head 14 and the printer head 14 is operated based on the feed amount data from the encoder 25 to perform printing.