KR20140023703A - Priting ribbon saving method of automatic medicine packing machine - Google Patents

Abstract

The present invention relates to a printing ribbon saving method for an automatic medicine packing apparatus, which comprises: a printing ribbon and packing paper compressing step which adheres a separated printing ribbon and printing paper to each other when medicine packing information is inputted in a state of inserting the printing ribbon and packing paper; a printing ribbon braking step which stops the loosening of the printing ribbon by braking the driven unit of the printing ribbon; a packing paper transferring step which transfers only the packing paper in a paper space for the packing paper by operating an operating unit of a paper transfer unit; a printing ribbon brake releasing step which releases the brake of the driven unit of the printing ribbon; a packing paper printing step which prints packing information on the packing paper while simultaneously transferring the printing ribbon and the packing paper; a packing paper printing completing step which brakes the driven unit of the printing ribbon in order to stop the loosening of the printing ribbon when completing the printing of the packing paper; and a printing ribbon and the packing paper compression releasing step which separates the adhering printing ribbon and the packing paper. The printing ribbon saving method for an automatic medicine packing apparatus: can save the printing ribbon by transferring the printing ribbon only when printing the packing paper and stopping the transfer of the printing ribbon when not printing the packing paper; can prevent the printing ribbon from going with the packing paper and from being cut when printing the packing paper; and can prevent unnecessary consumption of electricity by braking the driven unit using retention force of a step motor of the driven unit of the printing ribbon. [Reference numerals] (AA) Start; (BB) End; (S10) Printing ribbon and packing paper compressing step; (S20) Printing ribbon braking step; (S30) Packing paper transferring step; (S40) Printing ribbon brake releasing step; (S50) Packing paper printing step; (S60) Packing paper printing completing step; (S70) Printing ribbon and the packing paper compression releasing step

Description

PRINTING RIBBON SAVING METHOD OF AUTOMATIC MEDICINE PACKING MACHINE [0001]

The present invention relates to a printing ribbon saving method for automatically wrapping a medicine by a single dose, and more particularly, to a method of saving a printing ribbon by automatically applying a braking torque to a driven portion of a printing ribbon, The present invention relates to a packaging paper printing method for a automatic packaging machine for a medicine.

The automatic medicine packing machine 100 inputs the prescription of a doctor or a pharmacist in a hospital or a pharmacy and automatically discharges the collected medicines and collects the collected medicines one by one.

The automatic medicine packing machine 100 includes a plurality of medicine cassettes 101 installed in a mounting table and each of which is controlled to be intermittently controlled and discharged one by one through a passage and can house various medicines, A discharge hopper which is disposed at a lower portion of the medicine cassette 101 and collects the medicine dropped by the medicine cassette 101 and discharges the medicine dropped to the lower portion of the medicine cassette 101, (102); A cutter 117 for cutting the packed wrapping paper 103 on a packaging work basis and a heater assembly 110 for packaging the medicine dropped from the gate 102 while being disposed at the lower rear side of the gate 102, (110) for discharging the wrapping paper (103) wrapped with the medicine to the outside of the automatic medicine packing machine (100); and a discharge slider (116) for discharging the medicine wrapping paper (103). A paper conveying unit configured by a roll guide 106 for inserting a wrapping paper roll wound with the wrapping paper 103 wrapping the medicine and supplying the paper wrapping paper 103 while the wrapping paper 103 is wounded; Simple information such as a method of taking a medicine, a daily dosing time, and a date of taking a medicine is printed on the wrapping paper 103 and is printed on the side of the main body bracket 107 and the printing roller 105 formed in front of the gate 102 And a movable plate 20 which is movably provided in the vertical direction while being constructed A paper printing unit; An input unit configured by buttons for inputting the simple information and the packing method; An LCD or LED screen 104 for displaying information input from the input unit; And a 7-segment (10) formed on each medication column of the medication cassette (101) and indicating the medication position.

[0003] A control method of a printing apparatus for a medicine automatic packing machine will be described with reference to Japanese Unexamined Patent Application Publication No. 10-2011-0132740 (December 09, 2011)

A step (S11) of pressing between a thermal printing head (TPH) and a contact roller via a wrapping paper and a printing ribbon; A step (S13, S15) of rotating the drive reel by rotation of the drive motor to wind the print ribbon on the drive reel to thereby release the print ribbon from the driven reel and rotate the driven reel; (S17 to S21) of detecting rotation of the encoder slit by a sensor by rotating an encoder provided on a rotary shaft of the driven reel and calculating a pulse value per unit time from the detected value by the control unit; (S23) of determining the remaining amount of the print ribbon from the pulse-remaining amount table stored in advance in the control unit; A step (S25) of determining a torque value corresponding to the remaining amount of the print ribbon from the torque-remaining amount table stored in advance in the control unit; And a step (S27) of increasing the rotation speed of the tension motor by reducing the number of times of shot per unit time of the tension motor connected to the driven reel in accordance with the torque value, so that the medicine information packed by the thermal transfer head and the print ribbon A control method of a printing apparatus for printing on a surface, comprising the steps of: measuring a remaining amount of a printing ribbon wound on a driven reel of a printing ribbon through a rotating speed of a driven reel detected by an encoder provided on a rotating shaft of a driven reel By adjusting the rotational speed of the tension motor connected to the driven reel from which the print ribbon is released, the release speed of the print ribbon of the print ribbon is adjusted to control the amount of print ribbon that is released from the print ribbon reel.

However, in the related art, there is a problem that the amount of the printing ribbon unrolled according to the remaining amount of the printing ribbon wound to have a reel shape becomes constant, so that the printing period of the wrapping paper and the usage amount of the printing ribbon in the non- have.

In addition, the prior art has a problem in that the printing ribbon is unwound from the wrapping paper even in the non-printing section, so that the printing ribbon can not be saved due to unused printing ribbon.

In addition, in the prior art, the packaging paper and the printing ribbon are continuously supplied during the transportation of the packaging paper until the printing operation is completed on the packaging paper, thereby improving the overall working speed, but there is a problem that the printing ribbon is wasted.

SUMMARY OF THE INVENTION The present invention has been made to overcome the problems of the prior art as described above, and it is an object of the present invention to provide a printing apparatus, a printing method, The present invention relates to a method for saving a print ribbon of a medicine automatic packing machine, which is capable of saving a print ribbon by preventing the use of a print ribbon by feeding a piece of packing paper by temporarily stopping the release of a print ribbon by applying a braking torque to the follower portion.

In order to accomplish the above object, the present invention provides a method for saving a print ribbon of an automatic medicine packing machine, wherein when the execution information of the pharmaceutical packaging is input while the print ribbon and the wrapping paper are inserted, A pressing step of a printing ribbon and a wrapping paper; A printing ribbon braking step of braking the follower of the printing ribbon to stop unwinding of the printing ribbon; A packing paper conveying step of operating only the driving part of the paper conveying unit and transferring only the wrapping paper in the paper space of the wrapping paper; A printing ribbon braking releasing step of releasing braking of the follower of the printing ribbon; A packaging paper printing step of printing packaging information on the packaging paper while simultaneously transporting the printing ribbon and the packaging paper; A wrapping paper printing completion step of braking the driven portion of the printing ribbon to stop unwinding of the printing ribbon when printing of the wrapping paper is completed; A print ribbon to cause the adhered print ribbon and the wrapping paper to be spaced apart, and a step of releasing the wrapping paper.

In addition, in the present invention, the braking step of the print ribbon applies a braking torque of (drive torque-driven torque) + alpha to the driven portion of the print ribbon while braking the driven portion of the print ribbon and driving the driving portion of the printed ribbon.

Further, in the present invention, in the printing ribbon braking step, the driving torque of the driving portion of the printing ribbon is driven by the driven torque + α of the driven portion when the printing ribbon is almost exhausted in the driven portion.

In addition, the present invention is the braking step of the print ribbon is to use the step motor as a braking motor in the follower braking of the print ribbon.

In the present invention, the follower of the printing ribbon receives the braking signal of the control unit to turn on the transistor Q1, and the MOSFET transistor Q2 is turned on so that the current flows to the source of the MOSFET transistor Q2 And is applied to the braking motor 33 through a source.

The present invention has the effect that the print ribbon is fed only when the package information is printed on the wrapping paper, and the feeding of the print ribbon is stopped when the non-printing is stopped, thereby saving the print ribbon in the non-printing section.

In addition, the present invention has the effect that the printing ribbon does not accompany the wrapping paper by braking the printing ribbon when not printing on the wrapping paper.

In addition, the present invention has the effect that the driving torque of the driving portion of the printing ribbon when the packaging information is printed by driving the driven torque + α of the driven portion when the printing ribbon is not wound on the driven portion, so that the printing ribbon of the driven portion is not cut. have.

Further, in the present invention, a current is inputted onto a stepping motor of a printing ribbon follower portion when printing packaging information, and the follower portion is braked by using a holding force that tends to maintain the position of the image of the stepping motor by the inputted current, There is an effect that unnecessary power is not consumed.

1 is a perspective view of a general automatic medicine packing machine;
2 is a perspective view of a main body bracket of a general automatic medicine packing machine, in which a paper printing unit is coupled.
Fig. 3 is a block diagram of a control method of a printing apparatus of a conventional medicine packing machine.
Figure 4: State of use of prior art packaging paper and print ribbon.
5; State of print position of packing paper of general medicine automatic packing machine.
6 is a block diagram of the present invention;
7 is a state in which the movable plate and the braking motor of the present invention are coupled to the main body bracket;
8 is a state view of the print ribbon braking and braking motor of the present invention.
9 is a structural view of the braking motor of the present invention.
10 is a circuit diagram of a printing ribbon bending portion of the present invention;
Fig. 11 is a step diagram of a printing ribbon saving method of the automatic medicine packing machine of the present invention. Fig.
12 is a flowchart of a print ribbon saving method control method of the automatic medicine packing machine of the present invention.
Fig. 13 is a use state of the packaging paper and the printing ribbon of the present invention. Fig.
14: Ribbon balance and torque relationship diagram of the present invention.

Fig. 7 is a state in which the movable plate and the braking motor of the present invention are coupled to the main bracket; Fig. 8 is a state diagram of the braking motor and the braking motor of the print ribbon of the present invention; Fig. 11 is a structural diagram of the braking motor of the present invention, Fig. 10 is a circuit diagram of the printing ribbon braking portion of the present invention, Fig. 11 is a step of a printing ribbon saving method of the automatic medicine packing machine of the present invention, Fig. 13 is a view showing the state of use of the wrapping paper and the printing ribbon according to the present invention, and Fig. 14 is a diagram showing the relationship between the remaining amount of the ribbon and the torque of the present invention and explaining a method of saving the printing ribbon of the automatic medicine packing machine of the present invention if,

The present invention is characterized in that in the automatic medicine packing machine of the present invention, the braking motor 33 is used as a motor which is constituted by the releasing portion or the follower portion of the printing ribbon 31 to be used for tension control, When the wrapping information is printed on the wrapping paper 103, the braking torque is not applied to the braking motor 33 so that the print ribbon 31 is fed, and when the wrapping information is not printed on the wrapping paper 103, Braking torque is applied to the braking motor 33 to stop the conveyance of the print ribbon 31 to change the amount of the print ribbon 31 to save the print ribbon 31. [

A paper printing unit of a general automatic medicine packing machine includes a main body bracket 107 fixedly mounted on a lower portion of a main body, a movable plate 20 disposed adjacent to a side surface of the main body bracket 107 so as to be movable up and down, A ribbon cartridge detachably mounted on the movable plate 20 while the print ribbon 31 is detachably attached to the movable plate 20 and a ribbon cartridge provided on the movable plate 20 and moved together with the movable plate 20 A thermal printing head (TPH) for printing on the wrapping paper 103, and a moving motor 35 for moving the thermal transfer head up and down.

The thermal head prints the data on the wrapping paper 103 by heating according to the data in the print section of the wrapping paper 103.

The wrapping paper 103 and the print ribbon 31 are stacked between the thermal transfer head provided on the movable plate 20 and the print roller 32 provided on the main bracket 107. [

Since the printing roller 32 is installed in the main bracket 107 and the thermal transfer head is installed in the movable plate 20, when the printing operation is not performed, that is, The movable plate 20 is located at the lowered position and is separated from the printing roller 32 and the thermal transfer head.

A movable motor 35 for moving the movable plate 20 up and down is formed on the rear surface of the main body bracket 107. A cam is formed on the rotating shaft of the moving motor 35, And the movable plate 20 is moved up and down.

As the cam of the rotation shaft rotates, the movable plate 20 is moved upward by raising the bearing provided on the movable plate 20.

When the packaging information such as the time of taking medicine, the number of times of taking, the information about the preparation pharmacy, etc. is printed on the packaging paper 103, the outer circumferential surface of the cam of the moving motor 35 contacts the bearing formed on the movable plate 20 The movable motor 20 is lifted while the cam is rotated by the rotation of the movable motor 35 for a predetermined interval and the movable plate 20 is positioned on the projecting surface of the cam, do.

The thermal transfer head constructed on the movable plate 20 is lifted by the rise of the movable plate 20 so that the print ribbon 31 and the wrapping paper 103 are pressed against each other by being prevented from rising by the print roller 32.

When the cam continues to rotate, the movable plate 20 moves downward due to its own weight, and a spring can be installed between the main bracket 107 and the movable plate 20 to assist the main plate. One or more guide means may be provided to guide the movement of the movable plate 20 up and down.

A driving motor for driving the driving reel or driving unit of the printing ribbon 31 installed on the ribbon cartridge is constituted by the back surface of the movable plate 20 and the driven reel or the driven portion A braking motor 33 for braking is constituted.

The driving reel of the printing ribbon 31, that is, the driving unit transfers the printing ribbon 31 by using the driving motor as the step motor, and when the step motor of the driving unit of the printing ribbon 31 becomes more than a predetermined torque, the printing ribbon 31 is transferred. There is a torque limiting function that only turns the step motor.

Between the drive motor and the drive reel, transmission means such as a gear for transmitting a drive force from the drive motor to the drive reel is provided. The braking force from the braking motor 33 is also cut between the braking motor 33 and the driven reel And a transmission means such as a braking gear 34 are provided.

The printing ribbon braking device of the present invention comprises a braking gear (34), a braking motor (33) and a printing ribbon braking section (40).

The print ribbon braking unit 40, i.e., the follower of the print ribbon 31, controls the tension of the print ribbon 31 by using the drive motor as a step motor and by using the electronic brake function of the step motor. A voltage is applied to the motor to prevent the print ribbon 31 from being transferred by the braking force.

 The braking gear 34 is composed of a motor gear extruded to the rotating shaft of the braking motor 33 and a roll gear extruded to the roll rotating shaft of the printing ribbon 31. The motor gear and the roll gear are gear-

 The motor gear and the roll gear may be a spur gear or a bevel gear. When the spur gear is a spur gear, the rotation axis of the braking motor and the roll rotation axis are located on a straight line parallel to the rotation axis of the braking motor. The roll rotation axis is positioned at a right angle.

The braking motor is configured such that the rotational shaft thereof is coupled to the motor gear to interlock with the motor gear, and is coupled to the other side of the main body bracket 107. When the motor gear and the roll gear are spur gears, A motor bracket is formed on the body of the step motor body, and the motor bracket is coupled to the main bracket 107 to fasten the braking motor to the motor bracket. When the motor gear and the roll gear are bevel gears, This motor bracket is coupled to the main body bracket 107 to fasten the brake motor to the motor bracket.

In consideration of the ratio of the rotation of the braking motor to the rotation of the printing ribbon 31, the motor gear is configured to have a smaller diameter than the roll gear.

The braking motor 33 is connected to a print ribbon braking portion 40 for imparting a braking force to the braking motor 33 so as to prevent the braking motor 33 from rotating, The braking motor 33 is braked by the application of the electric current of the printing ribbon 31 to the printing ribbon 31 so that the printing ribbon 31 can not be released from the driven reel or the driven portion (unwinding portion) of the printing ribbon 31.

The braking motor 33 is constituted by a stepping motor. When a current is inputted to the stepping motor, a force for maintaining the applied image position is generated, and the stepping motor is braked by this force.

Since the holding torque of the stepping motor is generated at the position of the stepping motor and the stepping motor moves 7.5 ° during the stepping motion, the phase position of the stepping motor is generated at intervals of 7.5 ° and 48 holding positions do.

The control unit 50 includes a central processing unit (CPU) 52, a memory, and a control program to control the braking motor 33. The braking motor 33 is controlled by the control unit 50, do.

The controller 50 controls the overall operation of the medicine packing machine using the microprocessor and resets the position of the wrapping paper 103 to the ohmic position, that is, the operation start position when the home sensor is detected.

The controller 50 releases the braking of the print ribbon 31 at the print start position of the wrapping paper 103 and brakes the print ribbon 31 again at the print end position so that the position on the wrapping paper 103 is moved from the home position to the drive unit It is calculated by the number of pulses input to the driving motor, and one pulse is 0.125 mm.

In the paper transport unit Since the driving motor for conveying the wrapping paper 103 uses a stepping motor that moves by 0.9 ° when moving a step, 400 pulses are required per rotation since it is rotated by 0.9 ° when a pulse is applied, and the heater roller is rotated by one pulse And the heater roller is rotated by 1/2 when the stepping motor for conveying the wrapping paper moves one half turn.

That is, the heater rollers are divided into the front and rear halves, and the packaging information is printed on each of the front and rear halves. Therefore, when the heater rollers make one revolution, the wrapping paper is printed twice, The paper 103 has two pieces of packaging information printed thereon.

The length of one capsule of medicament is 75mm. The length of this 75mm is 1/2 of the length of the heater roller. The heater roller rotates by 1/2 when transferring a capsule.

The Hall sensor is configured to detect when one capsule is being transported and can be attached by various configurations such as the side of the heater roller or the roller which is configured to make one extra rotation, It is in position.

The circuit of the print ribbon bending portion 40 is configured such that the resistor R4 and the transistor Q1 are sequentially connected in series to the central processing unit 52 and the emitter of the transistor Q1 is grounded A resistor R5 is formed between the resistor R4 and the transistor Q1 and a resistor R5 is connected to the ground line of the emitter of the transistor Q1, The collector of the transistor Q1 is connected to the gate of the MOSFET transistor Q2 and the gate of the transistor Q2 of the collector of the transistor Q1 A resistor R1 is formed and a power source is connected between the resistor R1 and the MOSFET transistor Q2 while a resistor R2 is formed on the connecting line and a resistor R3 is connected to the drain of the MOSFET transistor Q2. And the resistor R3 is connected to the power supply and is connected after the power supply line of the resistor R2, And the source of the SFET transistor Q2 is connected to the braking motor 33. [

On the other hand, A1, A2, B2 of the braking motor 33 is connected to the tension control circuit to control the tension in the printing section () of the wrapping paper 103, not the braking section (paper space :) and braking motor 33 Is connected to the source of the MOSFET transistor Q2, i.e., the braking input, the pulse of the braking motor 33, i.e., the phase signal output of the braking motor 33, and the braking motor 33 in the printing section < RTI ID = 0.0 > of < / RTI > The pulse signal is output and the thickness of the print ribbon 31 is measured using the pulse signal.

The print ribbon bending portion 40 receives the braking signal of the control portion 50 so that the transistor Q1 is connected and the MOSFET transistor Q2 is connected so that a current flows to the source of the MOSFET transistor Q2 And is applied to the braking motor 33 through the braking force source (Source), so that the braking motor 33 is braked.

The print ribbon bending portion 40 receives the braking signal outputted from the central processing unit 52 of the control unit 50 and the transistor Q1 is connected so that the collector voltage of the transistor Q1 is 0 V The gate voltage of the MOSFET transistor Q2 becomes 24V-VGS (TH) and the MOSFET transistor Q2 is connected so that a voltage of 24V flows through the resistor R3 to the MOSFET transistor Q2, And is applied to the braking motor 33 to brake the braking motor 33. As shown in Fig.

On the other hand, when the braking OFF signal of the control unit 50 is applied, the print ribbon bending unit 40 disconnects the transistor Q1 and turns off the MOSFET transistor Q2 to turn off the MOSFET transistor Q2. The current connected to the source of the braking motor 33 is disconnected and is not applied to the braking motor 33 so that the braking of the braking motor 33 is released.

The print ribbon braking unit 40 receives the braking OFF signal output from the central processing unit 52 of the control unit 50 so that the transistor Q1 is disconnected and the collector voltage of the transistor Q1 The gate voltage of the MOSFET transistor Q2 becomes 24 V and the MOSFET transistor Q2 is disconnected and the braking motor 33 connected to the source terminal of the MOSFET transistor Q2 The braking of the braking motor 33 is released.

The resistor R3 is a resistor for bringing the 24V power supply down to a voltage suitable for the operating voltage of the braking motor 33 for current control for generating a desired braking torque. The smaller the resistor R3 is, the more current flows and the braking torque is counted The larger the resistor R3 is, the smaller the current flows and the braking torque is reduced.

The resistor R1 and the resistor R2 generate a switching voltage for driving the MOSFET transistor Q2 and turn on the MOSFET transistor Q2 which reduces the voltage of 24V to a voltage suitable for the operating voltage of the MOSFET transistor Q2 The voltage difference between the drain and gate of the MOSFET transistor Q2 must be larger than the threshold voltage V _{GS (TH)} of the MOSFET transistor Q2 and smaller than the allowable voltage.

Therefore, the voltage of the gate of the MOSFET transistor Q2 is as follows.

- On Turn On Voltage: 24V-VGS (TH)

- Turn-off voltage: 24V

Since the transistor Q1 is an NPN type transistor and the terminal with an arrow is an emitter and the transistor Q1 outputs the control signal voltage of the central processing unit 52 at 0 V and 5 V, (24V).

The resistor R4 limits the current to prevent an overcurrent between the base and the emitter of the transistor Q1 from flowing and the current applied from the central processing unit 52 to the base of the transistor Q1, .

The resistor R5 allows the transistor Q1 to keep the control OFF when the output of the braking signal is not outputted from the central processing unit 52 so that the malfunction of the MOSFET transistor Q2 is not generated, If the output voltage of transistor Q1 is not the operating voltage of transistor Q1, this voltage is bypassed to ground.

The central processing unit 52 is reset when the power is first applied and the voltage is not outputted to the output pin in the reset state.

The printing ribbon saving method of the automatic medicine packing machine of the present invention is such that when the packaging execution is inputted in order to package the medicines in the medicine cassette in a state where the printing ribbon 31 and the wrapping paper 103 are properly inserted (S 10), a print ribbon braking step (S 20), a wrapping paper transporting step (S 30) and a print ribbon braking release step (S 10) are started when a printing operation is started on the packaging paper 103 40, a wrapping paper printing step (S50), a wrapping paper printing completion step (S60), and a squeezing release step (S70) of a printing ribbon and a wrapping paper.

The pressurization step (S 10) of the print ribbon and the wrapping paper is performed when the execution information of the pharmaceutical packaging is inputted while the print ribbon 31 and the wrapping paper 103 are inserted, So that the printed ribbon 31 and the wrapping paper 103 separated from each other are brought into close contact with each other.

In the pressing step (S 10) of the printing ribbon and the wrapping paper, the movable motor 35 is driven to rotate the cam by the rotation of the rotating shaft of the moving motor 35, so that the movable plate 20 is raised, The thermal transfer head provided on the upper surface of the thermal transfer head is moved upward so that the wrapping paper 103 and the print ribbon 31 are brought into close contact with the printing roller 32 with an appropriate pressure, The rising of the movable plate 20 is completed, and the print ribbon 31 and the wrapping paper 103 are squeezed.

The printing ribbon braking step S 20 is performed by the central processing unit 52 by the input signal of the control unit 50, that is, the central processing unit 52, The power is applied to the braking motor 33 and the braking of the driven portion of the print ribbon 31 is stopped to stop the unwinding of the print ribbon 31. When the power is supplied to the braking motor 33 The braking motor 33 is braked by using the holding force to maintain the position of the image of the braking motor 33 so that the unwinding portion of the printing ribbon 31 is braked and the driving motor is driven to drive the driving portion of the printing ribbon 31 .

The print ribbon braking step S20 is a step in which the transistor Q1 is connected by the braking signal of the central processing unit 52 when the signal of the paper space (b) is input to the central processing unit 52 in the paper space (b) And the MOSFET transistor Q2 is connected so that the current of the power source is applied to the braking motor 33 through the resistor R3 and the MOSFET transistor Q2 so that the braking motor 33 is braked The driven portion of the ribbon 31 is braked and the print ribbon 31 is not released.

The braking torque of the follower portion of the print ribbon 31 should be sufficient to prevent the print ribbon 31 from being conveyed and if the braking torque is smaller than the drive torque of the drive portion, When the wrapping paper 103 is conveyed, the print ribbon 31 is not braked but comes to the wrapping paper 103 together with the wrapping paper 103. When the braking torque is too large in comparison with the drive torque, Unnecessary power is consumed.

Ribbon Remaining Volume vs. Braking Torque As shown in the drawing, the driven torque, that is, the braking torque, can be seen that the print ribbon 31 is not released only when the remaining amount of ribbon is always 100%, that is, compared to the driven torque without using any printing ribbon. .

In Fig. 15, the torque or braking torque is about 42 gfcm when the remaining ribbon is 100%, when 30% of the ribbon is used, that is, when 60gfcm when the remaining ribbon is 70%, that is, when the remaining ribbon is 40%. 81gfcm, when both ribbons are used, there is no ribbon remaining, i.e., when the remaining ribbon is 0%, it becomes about 119gfcm, and the smaller the remaining ribbon, the braking torque increases.

Therefore, a suitable braking torque in which the printing ribbon 31 does not accompany the wrapping paper 103 at the time of conveying the wrapping paper 103 in the wrapping paper conveying step (S 30) is (drive torque-driven torque) + α. to be.

That is, in the printing ribbon braking step (S20), the driven portion of the print ribbon 31 is braked and the driving portion of the print ribbon 31 is driven, and the driven portion of the print ribbon 31, It is preferable to apply the braking torque of +0 to the stopping of the printing ribbon 31. [

When the thermal transfer head stops driving the print ribbon 31 while the thermal print head is being pressed against the print paper 103, the frictional force of the pressed portion, that is, the print paper 103 and the print ribbon 31, The printing ribbon 31 comes along with the wrapping paper 103 by the frictional force in the compressed state.

Therefore, in order to prevent the print ribbon 103 from attaching to the wrapping paper 103 and thus becoming a pirate, the unwinding portion of the print ribbon 103 must be braked.

In the printing ribbon braking step (S20), the follower braking of the print ribbon (31) is performed such that the braking motor (33) of the follower unit uses the stepping motor Use retentive force to be maintained.

The wrapping paper feeding step S30 is a step in which only the wrapping paper 103 is fed from the paper space (b) of the wrapping paper 103 to the driving part of the paper feeding part after the print ribbon braking step (S20).

When the drive unit of the paper transfer unit is driven in the paper space (b) of the package paper 103, since the package paper 103 has no braking torque at the follower unit, that is, the unloading unit, the package paper 103 is unwound, The print ribbon 31 is in a state in which the braking torque is blocked and the print ribbon 31 is not released.

The print ribbon braking release step (S40) is a step of releasing the braking of the follower of the print ribbon (31) after the wrapping paper feed step (S30).

The print ribbon braking release step S40 releases the torque applied to the braking motor 33 to release the braking print ribbon 31 in the print ribbon braking step S20, (103) to be simultaneously pirated.

The print ribbon braking release step S40 is a step in which the transistor Q1 is disconnected when the signal indicating the printing interval (a) of the wrapping paper 103 is input to the central processing unit 52, The transistor Q2 is disconnected and the current of the power source connected to the source of the MOSFET transistor Q2 is disconnected and disconnected from the brake motor 33, So that the braking motor 33 is prevented from being braked.

The packaging paper printing step S50 is a step in which the packaging information is printed on the packaging paper 103 while the printing ribbon 31 and the packaging paper 103 are simultaneously transported after the release of the print ribbon brake release step S40.

The wrapping paper printing step S50 is a step of raising the thermal transfer head in a state where the cam is rotated by the rotation of the moving motor 35 and the movable plate 20 is raised, The packaging paper 103 and the printing ribbon 31 are simultaneously unwound by the printing roller 32 so that the time for taking the medicine, the number of times of taking the medicine, information about the pharmacy, etc. And the packaging information is printed.

The drive section of the print ribbon 31 in the wrapping paper printing step S50 is operated such that the linear velocity of the print ribbon 31 is faster than the linear velocity of the wrapping paper 103, So as not to cause the phenomenon to occur.

The wrapping paper 103 and the print ribbon 31 are simultaneously unwound so that interference does not occur between the wrapping paper 103 and the print ribbon 31. In this case, The printing ribbon 31 is brought to the packaging paper 103 in a state in which the printing ribbon 31 and the packaging paper 103 are pressed together by the printing roller 32. [

On the other hand, the driving torque of the driving portion of the printing ribbon 31 is driven by the follower torque + alpha of the driven portion when the printing ribbon 31 is almost completely consumed in the follower portion so that the printing ribbon 31 of the follower portion is not cut No.

In the wrapping paper printing step (S50), in a state in which torque is applied to the driving portion and the follower portion of the printing ribbon 31, that is, in a state in which the driving motor of the driving portion is operated to drive the printing ribbon 31, 31, the braking motor of the follower unit is in a state of being braked so that the drive torque of the print ribbon 31 becomes much larger than the braking torque, that is, the difference between the drive torque and the braking torque, The printing ribbon 31 is cut off and waste of the unnecessary printing ribbon 31 is caused.

Therefore, in the wrapping paper printing step (S50), the driving unit of the printing ribbon 31 should limit the driving torque so as not to detect the printing ribbon 31 at a constant torque or more.

In the wrapping paper printing step (S50), the appropriate torque of the driving portion of the printing ribbon 31, that is, the driving torque is the torque of the driven portion when the printing ribbon 31 is hardly wound on the driven portion, that is, the driven torque + The printing ribbon 31 can be conveyed irrespective of the amount of the printing ribbon 31 wound around the follower portion.

When the printing of the wrapping paper 103 is completed after the wrapping paper printing step (S50), the wrapping paper printing completion step (S60) brakes the follower part of the printing ribbon 31 to release the printing ribbon 31 .

The wrapping paper printing completion step S60 is a step of imparting the released torque to the braking motor 33 in the print ribbon braking releasing step S40 so that the print ribbon 31 does not come loose, Thereby imparting torque to the braking motor 33 of the subordinate portion.

The method of imparting torque to the braking motor 33 in the wrapping paper printing completion step (S60) is the same as the method in the printing ribbon braking step (S20), and a description thereof will be omitted.

The squeezing release step (S70) of the print ribbon and the wrapping paper is a step for causing the wrapping paper and the wrapping paper closely adhered after the wrapping paper printing completion step (S60).

The step S70 of releasing the printing ribbon and the wrapping paper is a step of stopping the driving part of the printing ribbon 31, braking the unloading part of the printing ribbon 31, and lowering the thermal transfer head The driving portion of the printing ribbon 31 is stopped to release the braking applied to the follower portion of the braking motor 33 while the printing ribbon 31 is not used so that unnecessary waste of electric power is eliminated, The thermal transfer head is lowered by the lowering of the movable plate 20 so that the printing roller 32 releases the pressing by the printing ribbon 31 and the wrapping paper 103 and the printing ribbon 31 and the wrapping paper 103 are free.

Therefore, in the present invention, the printing ribbon 31 is conveyed only when the packaging paper 103 is printed, the conveyance of the printing ribbon 31 is stopped at the time of non-printing to save the printing ribbon 31, The printing ribbon 31 is not cut and the holding force of the step motor of the follower portion of the printing ribbon 31 is used without causing the phenomenon that the printing ribbon 31 comes to adhere to the wrapping paper 103 There is an effect that unnecessary electric power is not consumed by braking the follower portion.

Although the present invention has been described in detail with reference to the specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be construed as being limited to the embodiments described, but should be determined by equivalents to the appended claims, as well as the appended claims.

10: 7-segment 20: movable plate
31: print ribbon 32: print roller
33: Brake motor 34: Brake gear
35: Moving motor 40: Print ribbon dynamic section
50: control unit 52: central processing unit

Claims (5)

A method for saving a print ribbon of an automatic medicine packing machine,
A pressing step of pressing the printing ribbon and the wrapping paper to cause the separated print ribbon and the wrapping paper to come into close contact when the execution information of the medicine wrapping is inputted while the print ribbon and the wrapping paper are inserted;
The A printing ribbon braking step of braking the driven portion to stop unwinding of the print ribbon;
A packing paper conveying step of operating only the driving part of the paper conveying unit and transferring only the wrapping paper in the paper space of the wrapping paper;
A printing ribbon braking releasing step of releasing braking of the follower of the printing ribbon;
A packaging paper printing step of printing packaging information on the packaging paper while simultaneously transporting the printing ribbon and the packaging paper;
A wrapping paper printing completion step of braking the driven portion of the printing ribbon to stop unwinding of the printing ribbon when printing of the wrapping paper is completed;
A print ribbon which causes the adhered print ribbon and the wrapping paper to be spaced apart, and a step of unclamping the wrapping paper;
Wherein the printing ribbon is conveyed only at the time of printing the packaging paper, and the conveyance of the printing ribbon is stopped at the time of non-printing, thereby saving the printing ribbon.
The method of claim 1,
The printing ribbon braking step includes applying a braking torque of (drive torque-driven torque) + alpha to the driven portion of the print ribbon by braking the driven portion of the printed ribbon and driving the driving portion of the printed ribbon;
And the release of the print ribbon is stopped.
3. The method of claim 2,
In the printing ribbon braking step, the drive torque of the drive section of the print ribbon is driven by the driven torque + α of the follower when the print ribbon is almost exhausted in the follower;
And the print ribbon of the follower is not cut.
3. The method of claim 2,
The printing ribbon braking step may include: using a stepper motor as a braking motor to follower braking of the printing ribbon;
Wherein when the current is inputted to the step motor, the step motor is braked by using the holding force that maintains the position of the image of the step motor by the inputted current.
5. The method of claim 4,
The follower of the printed ribbon receives the braking signal of the controller and the transistor Q1 is connected (ON) and the MOSFET transistor Q2 is connected (ON) so that a current flows through the source of the MOSFET transistor Q2. Applied to the braking motor 33;
Torque is generated in the braking motor (33) to the printing ribbon saving method of the automatic drug packaging machine, characterized in that the follower is braked.

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