JP2010083538A - Medicine packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medicine packaging machine capable of attaining miniaturization and space saving of a cutting mechanism part. <P>SOLUTION: In the medicine packaging machine in which a medicine storing mechanism for storing a plurality of medicines is provided, an optional medicine taken out of the medicine storing mechanism is guided to a medicine packaging sheet, the medicine packaging sheet is heat-welded to form a dividedly packaged bag, and it is cut at a predetermined position with a cutting mechanism, the cutting mechanism 60 includes a fixed body 61 for receiving the medicine packaging sheet 20, and a movable body 63 for pinching the medicine packaging sheet 20 in cooperation with the fixed body. The movable body 63 is equipped with a cutting blade 71 freely projecting toward the fixed body 61, and under a condition that the medicine packaging sheet 20 is pinched between the fixed body 61 and the movable body 63, the medicine packaging sheet 20 is cut by pushing with projecting the cutting blade 71. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a medicine packaging machine for packaging medicines dispensed on the basis of a doctor's prescription at a hospital, a pharmacy, or the like with a medicine sheet for each dose.

Conventionally, when a drug dispensed according to a prescription is to be administered to a patient, the drug required for a single dose with an automatic drug packaging machine etc. so that the patient does not have to take a combination of different drugs each time Is dispensed in the same sachet. The medicine packaging sheet used for this packaging is sealed by thermal welding after the medication is put into the medicine packaging sheet, and a large number of packaging bags are continuously formed. And it is cut | disconnected by a cutter mechanism in a predetermined position and supplied to a patient (refer patent document 1).
Japanese Patent Laid-Open No. 5-132007

However, in the conventional cutter mechanism described above, the cutter blade for cutting the medicine package sheet operates, for example, to cut a saw, so that there is a problem that the cutting mechanism portion is inevitably enlarged and installation space is increased. It was.
Accordingly, an object of the present invention is to provide a medicine packaging machine that can solve the problems of the conventional techniques described above and can reduce the size and space of the cutting mechanism.

The present invention includes a medicine storage mechanism for storing a plurality of medicines, guides any medicine taken out from the medicine storage mechanism to a medicine packaging sheet, heat-welds the medicine packaging sheet to form a packaging bag, and cuts In a medicine packaging machine that cuts a medicine package sheet at a predetermined position by a mechanism, the cutting mechanism includes a fixed body that receives the medicine package sheet, and a movable body that cooperates with the fixed body and sandwiches the medicine package sheet. And the movable body includes a cutting blade that can project toward the fixed body, and in a state where a medicine package sheet is sandwiched between the fixed body and the movable body, The sheet is configured to push through the sheet.
In the present invention, since the cutting mechanism is configured to push the medicine pack sheet by protruding the cutting blade in a state where the medicine pack sheet is sandwiched between the fixed body and the movable body, the movable body is fixed in the horizontal direction, for example. It is only necessary to move it toward the body, and then push the cutting blade slightly forward, and it is not necessary to operate the cutter blade like, for example, a saw as in the prior art. Space saving can be achieved.

On the upstream side and the downstream side of the cutting mechanism, there are a pair of medicine package sheet feeding rollers that rotate about an axis perpendicular to the feeding direction of the medicine package sheet, and the medicine sheet feeding roller on the upstream side and the fixed body Between them, you may provide the guide body which guides the front edge of a medicine package sheet to the said cutting mechanism.
According to this, after the medicine package sheet is cut by the cutting mechanism, the guide body guides the leading edge of the succeeding medicine package sheet to the cutting mechanism, so that the front edge of the succeeding medicine package sheet is temporarily warped. Is stably fed into the cutting mechanism.
The movable body may be formed with a vertically long opening for receiving the cutting blade, and the fixed body may be formed with a groove for receiving the cutting blade.
Since the cutting blade is located within the area of the movable body, the cutting blade does not protrude from the movable body, and the size can be reduced.
The movable body and the cutting blade may be driven by a common drive motor.
According to this, the mechanism can be simplified by sharing the actuator.

  According to the present invention, in order for the cutting mechanism to push out the medicine pack sheet by protruding the cutting blade in a state where the medicine pack sheet is sandwiched between the fixed body and the movable body, the movable body is fixed in the horizontal direction, for example. Then, it is only necessary to push the cutting blade slightly forward, and since it is not necessary to operate the cutter blade, for example, like a conventional saw, the mechanism portion can be reduced in size, Space saving can be achieved.

Hereinafter, a medicine packaging machine according to an embodiment of the present invention will be described.
FIG. 1 is an external perspective view of a medicine packaging machine 1 for charging and packaging a solid preparation as a medicine in a medicine packaging sheet 20, and FIG. 2 is a side view of the inside of the medicine packaging machine 1 of FIG. It is a schematic diagram which shows a state.
The medicine packaging machine 1 is installed in a hospital, a dispensing pharmacy, or the like, and is composed of a medicine storage mechanism 3 provided in a rectangular outer case 2 and a medicine packaging mechanism 14 provided therebelow. Yes. A tablet case storage portion 5 of the medicine storage mechanism 3 is configured in the upper part of the outer case 2, and the upper opening of the tablet case storage portion 5 is closed by the top table 4 so as to be freely opened and closed.

A plurality of tablet cases 6... Are stored inside the tablet case storage unit 5, and a sub storage unit 7 is installed in the front upper part thereof.
The sub-accommodating unit 7 is for storing a medicine (for example, a tablet cut in half) that cannot be stored in the tablet case 6, and is illustrated by a belt 9 stretched on a pulley of a rotating shaft (not shown) of the motor 8. A belt conveyor (in this case, it may be connected by a chain or a gear) is driven. The belt conveyor is provided with a plurality of storage compartments 7A continuously.

Further, a discharge counting device such as a photo sensor (not shown) is provided below each tablet case 6.
This discharge counting device communicates with each of the upper tablet cases 6... And has a motor-driven discharge drum built therein. Further, the discharge drum has a structure in which a medicine that is a solidified preparation such as the tablet, capsule, pill, and troche enters the upper and lower rows in a plurality of grooves formed on the side surface. Then, the medicine is dropped one by one from the inside of each groove as the discharge drum rotates, and the number is detected and counted by the photosensor.

  Further, a drop passage is formed at one end of each of the sub-accommodating portions 7..., And this drop passage communicates with a turntable 10 described later. Each of the medicines as described above is stored in the storage section 7A of the sub storage section 7 and the medicine 8 in each of the storage sections 7A... It is configured to fall on the turntable 10.

  And each tablet case 6 ... and the disk-shaped turntable 10 for collecting a medicine are provided under the drop passage, and this turntable 10 is the all tablet cases 6 ... and the drop. It has an area corresponding to the lower part of the passage. Further, a raised portion 10A raised in a conical shape is formed at the center of the turntable 10, and the turntable 10 is rotationally driven at a predetermined speed by a turntable motor (not shown) provided below the raised portion 10A. Is done.

An annular guide 11 is provided upright around the turntable 10, and a discharge port D is formed at a suitable position of the guide 11.
A shooter 13 to be described later is provided below the discharge port D, and the medicine collected on the guide 11 side by the rotation of the turntable 10 is configured to fall into the shooter 13. The shooter 13 has an inverted quadrangular pyramid shape, and an upper end opening corresponds to the discharge port D of the turntable 10 and an upper portion between the medicine package sheets 20 in which the opened lower end (tip) is folded in half. Yes.

FIG. 3 shows a medicine packaging mechanism 14 provided below the turntable 10.
The medicine packaging mechanism 14 includes an attaching means for attaching a medicine pack sheet roll 19 to be described later, a guide means for guiding the extracted medicine pack sheet 20 to a predetermined position, and a pulling means for pulling the tip of the medicine pack sheet 20. It is arranged on the base 15. The medicine sheet mounting means includes a rotary shaft 16 that is provided so as to be rotatable up on the base 15, a disk-like mounting plate 17 that is located at the bottom of the rotary shaft 16 and projects outward, It comprises a solenoid-driven brake (not shown) disposed below the mounting plate 17 (between the base 15) and the like.

The rotating shaft 16 has a cylindrical shape having an outer diameter that substantially matches (is slightly smaller than) an inner diameter of a shaft member 21 of a medicine pack sheet roll 19 to be described later. It is detachably inserted into the shaft member 21 formed in the above.
Here, the medicine pack sheet roll 19 includes a hollow tubular shaft member 21 (usually referred to as a paper tube) 21 made of hard synthetic resin (may be made of thick paper), and the medicine pack sheet 20 wound around the periphery. It consists of and. The medicine package sheet 20 is a vertically long strip having a predetermined width, and is provided around the shaft member 21 in a roll shape.

  The medicine package sheet 20 is formed by overlapping a PET sheet on one surface of the low-density polyethylene sheet and joining the two sheets so that the low-density polyethylene sheet side is the inner surface side at both ends. It is formed by overlapping exactly. The medicine package sheet 20 is set with the folded portion 20A folded downward and the opening 20B folded twice (opposite to the folded portion 20A) facing upward. The medicine package sheet 20 is wound around the shaft member 21 with the folded portion 20 </ b> A as the lower end edge side of the shaft member 21 in a double-folded state, and is drawn out from the final end of the wound medicine package sheet 20.

  The medicine packaging mechanism 14 is provided with a tension lever 23 as a guide means located on the side of the rotating shaft 16. The tension lever 23 is passed between the two rollers 24 and 25. At this time, the roller 24 is fixed to the base 15, and the roller 25 is swingable about the roller 24. The roller 25 is urged in a direction away from the rotating shaft 16 by a spring material (not shown). The position of the roller 25 is detected by a switch (not shown). Reference numeral 26 denotes a guide roller, which is erected on the base 15 on the side of the roller 24.

  A drawing roller 30 as a drawing means is provided on the base 15 on the opposite side across the tension lever 23 and the rotating shaft 16. The pull-in roller 30 includes a pair of narrow rubber rollers (natural rubber or synthetic rubber) 33 and 33A, and is rotatably attached to the upper ends of the rotary shafts 32 and 34. Reference numeral 31 denotes a retracting motor.

  Further, the rotating shaft 34 of the other rubber roller 33A located downstream of the heat seal mechanism 27, which will be described in detail later, is urged by a coil spring (not shown), and one rubber roller 33A is brought into pressure contact with the rubber roller 33 with a predetermined pressure. Both rubber rollers 33 and 33A are configured to rotate when the motor 31 rotates. The medicine package sheet 20 is pulled out from the medicine package sheet roll 19 by sandwiching the medicine package sheet 20 (opening 20B side) between the rubber rollers 33 and 33A.

FIG. 4 is a perspective view of the heat seal mechanism 27. In FIG. 4, the medicine package sheet 20 is sent from the right side to the left side.
The heat seal mechanism 27 is provided between the guide roller 26 and the pull-in roller 30, and has a function of sealing the opening 20B of the medicine package sheet 20 by joint heat welding and partitioning each package. Yes. The heat seal mechanism 27 includes a pair of heaters 29 and 39 provided to face each other at a predetermined interval. One heater 29 is provided with an operating device 28. The actuating device 28 is configured such that one heater 29 is press-contacted or separated from the other heater 39 facing each other. Then, when the heaters 29 and 39 are energized, they generate heat to a predetermined temperature.

  The heaters 29 and 39 extend from the vertical portions 29A and 39A extending in the vertical direction in FIG. 4 (the short direction of the medicine pack sheet 20; also referred to as the width direction of the medicine pack sheet 20), and the upper ends of the vertical portions 29A and 39A It is comprised from the parallel parts 29B and 39B extended in the downstream of the feed direction (longitudinal direction of the medicine package sheet 20) of the medicine package sheet 20, respectively. That is, the heaters 29 and 30 have an inverted L shape as shown in FIG. Further, the vertical portions 29A and 39A of the heaters 29 and 39 are sandwiched from both sides and thermally welded from the folded portion 20A side to the opening portion 20B of the medicine package sheet 20, thereby forming and fixing the vertical welded portion 38. Thereby, on the upstream side of the heat seal mechanism 27, a substantially triangular sachet 36A surrounded by the vertical welded portion 38 and the folded portion 20A is formed with the opening 20B being unwelded. The above-described shooter 13 is positioned above the sachet 36A so that the medicine dropped from the tablet case 6 enters the sachet 36A from the shooter 13. The parallel portions 29B and 39B are configured to thermally weld the opening 20B on the downstream side of the vertical portions 29A and 39A.

After the medicine package sheet 20 is thermally welded by the heat seal mechanism 27, the medicine package sheet 20 is moved by a predetermined distance toward the drawing roller 30 (T direction in FIG. 4) by the rotation of the drawing roller 30. Then, the medicine package sheet 20 is thermally welded by the heaters 29 and 39, so that the parts other than the folded part 20A are thermally welded to the downstream side (the drawing roller 30 side) of the vertical parts 29A and 39A of the heaters 29 and 39, and the medicine is enclosed. The formed sachet 36 is formed, and a sachet 36A is formed on the upstream side of the vertical portions 29A and 39A. The vertical portion 29A of the heater 29 is provided with vertical teeth 41 extending in the vertical direction. On the other hand, the vertical portion 39A of the heater 39 is provided with a vertical tooth receiving portion 51 that receives the vertical teeth 41 at a portion corresponding to the vertical teeth 41.
These vertical teeth 41 and vertical tooth receiving portions 51 are formed to be longer than the length in the vertical direction of the medicine package sheet 20, and when heat-welding from the folded portion 20A to the opening 20B of the medicine package sheet 20, A perforation 37 (perforated hole) is formed at substantially the center of the width of the heat-welded portion (from the folded portion 20A to the opening 20B).
Thereby, the three sides of the medicine package sheet 20 (the other one is the folded portion 20A) are thermally welded to form a packaging bag 36 whose entire circumference is closed, and the packaging bag 36 is separated from the perforation 37 and removed. It can be separated.

Further, the parallel portion 29B of the heater 29 is provided with cutting teeth 43 extending in the vertical direction in the vicinity of the vertical portion 29A and on the downstream side of the vertical portion 29A.
On the other hand, the parallel portion 39B of the heater 39 is provided with a cutting tooth receiving portion 53 that receives the cutting teeth 43 at a portion corresponding to the cutting teeth 43. The cutting teeth 43 and the cutting tooth receiving portions 53 are formed to be shorter than the vertical heights of the parallel portions 29B and 39B, and the upper end portion is located above the opening portion 20B of the medicine package sheet 20. is doing. Thereby, the cut 45 is formed in the welding part of the upper side of the medicine package sheet 20. This cut 45 is for the patient to easily open the packaging bag 36.

  Further, a gap 46 is provided around the cutting teeth 43 in the heat welding portion of the heater 29. In the gap 46, the medicine package sheet 20 is not welded. Therefore, an unwelded portion 47 is formed around the notch 45.

FIG. 5 shows the cutting mechanism.
The cutting mechanism 60 is disposed on the downstream side of the pair of narrow rubber rollers (medicine sheet feeding rollers) 33 and 33A. The cutting mechanism 60 includes a fixed body 61 that receives the medicine package sheet 20 and a movable body 63 that holds the medicine package sheet 20 in cooperation with the fixed body 61, and these are arranged on a surface plate 65. .
The movable body 63 has a base material 63A and a surface material 63B, and two connecting rods 66 and 67 are fixed to the base material 63A with a vertical interval therebetween, and the two connecting rods 66 and 67 are fixed. Is fixed to the support 68. A vertically long opening 70 passes through the base material 63A and the surface material 63B, and a sawtooth cutting blade 71 is stored in the opening 70 so as to pass therethrough. The cutting blade 71 is formed at the leading edge of a flat cutting blade body 73, the cutting blade body 73 is fixed to a holder 74, and the holder 74 is juxtaposed with the support 68.

Reference numeral 75 denotes a gantry that houses a cam mechanism (not shown), and a drive motor 77 is fixed to the gantry 75. An output shaft (not shown) of the drive motor 77 is located inside the gantry 75, and the cam mechanism is connected to the output shaft. When the drive motor 77 is driven, the cam mechanism operates. First, the support body 68 and the holder 74 are pushed together, and the movable body 63 and the cutting blade 71 are pushed together.
Next, when the movable body 63 abuts on the fixed body 61 with the medicine package sheet 20 interposed therebetween, the cam mechanism slightly pushes out only the holder 74 and only the cutting blade 71 is pushed out to form the fixed body 61. It fits into the vertically long groove 61A. The length of the longitudinal groove 61A is at least longer than the width dimension of the medicine package sheet 20. According to this configuration, in the state where the medicine package sheet 20 is sandwiched between the fixed body 61 and the movable body 63, only the cutting blade 71 protrudes until it fits into the concave groove 61 </ b> A of the stationary body 61, thereby the medicine package sheet. 20 is cut. The cutting blade 71 has a saw blade shape. When the cutting blade 71 is pushed out, first, a plurality of sharp tip portions of the cutting blade 71 are pierced into the medicine package sheet 20, and the cutting blade 71 is further pushed out to be a fixed body. The medicine pack sheet 20 is pushed and cut by the cutting blade 71 when it fits into the groove 61 </ b> A of 61. When the push-off is completed, the cutting blade 71 is retracted by the operation of the cam mechanism. When the cutting blade 71 is stored in the opening 70 of the movable body 63, the cutting blade 71 and the movable body 63 are united, retreat to the position shown in FIG. Since the movable body 63 and the cutting blade 71 are driven by a common drive motor 77, the drive mechanism can be simplified by sharing the actuator.

The narrow rubber roller (medicine sheet feeding roller) 33 has a rotation shaft 32, a timing belt 81 is hung on the rotation shaft 32, and the timing belt 81 is hung on the output shaft of the retracting motor 31. Yes.
Further, a synchronization timing belt (not shown) is hung on the rotating shaft 32 of the rubber roller 33, and the synchronization timing belt is a narrow rubber roller (medicine sheet feeding roller) located downstream of the cutting mechanism 60. ) 83. A narrow rubber roller 84 is paired with the rubber roller 83.
In this configuration, when the retracting motor 31 is driven, the rubber rollers (medicine sheet feeding rollers) 33 and 33A rotate via the timing belt 81, and the rubber rollers 83 and 84 rotate via the synchronization timing belt.

As described above, the rubber rollers 33 and 33A and the rubber rollers 83 and 84 are arranged on the upstream side and the downstream side of the cutting mechanism 60, and both are driven by the pull-in motor 31 to feed the medicine package sheet. And rotate around a vertical axis.
Between the upstream rubber roller 33 and the fixed frame 61, a plate for guiding the front edge of the medicine package sheet 20 between the fixed body 61 and the movable body 63 (cutting mechanism 60) is provided. A bent guide body 87 is arranged. The surface of the guide body 87 on the movable body 63 side is arranged so as to be flush with the movable body 63 side of the fixed body 61.

Next, the operation procedure and operation of the medicine packaging machine 1 will be described.
First, as shown in FIG. 3, the medicine package sheet roll 19 is placed on the placement plate 17 while inserting the rotating shaft 16 into the shaft member 21 of the medicine package sheet roll 19. At this time, the medicine package sheet roll 19 is attached with the opening 20B of the medicine package sheet 20 facing upward. After the medicine pack sheet roll 19 is mounted on the rotary shaft 16 in this way, the medicine pack sheet 20 of the medicine pack sheet roll 19 is pulled out from the tip, and the guide roller 26 passes through the outside of the rollers 25 and 24 of the tension lever 23 sequentially. It passes through the inside and then passes through the heater 29 to the drawing roller 30. Then, when the leading end of the medicine package sheet 20 is inserted between the rubber rollers 33 and 33A of the drawing roller 30 and the drawing motor 31 is driven, the rubber rollers 33 and 33A press the medicine packaging sheet 20 to the heat seal mechanism 27 side. Since it is pulled in the opposite direction (near side), the medicine package sheet 20 is drawn into the drawing roller 30.

As shown in FIG. 5, the medicine package sheet 20 is cut at a predetermined position by the cutting blade 71 when entering the cutting mechanism 60.
The cutting position is arbitrarily controlled, and is, for example, the position A shown in FIG. The medicine package sheet 20 forms the sachet bag 36 continuously, but no medicine is put in several bags before and after the position A to be cut.
According to the present embodiment, the medicine package sheet 20 is sandwiched between the fixed body 61 and the movable body 63 in the packaging bag 36 at the position A where no medicine is contained, and in this state, only the cutting blade 71 is By projecting until it fits into the recessed groove 61A of the fixed body 61, the position A of the medicine package sheet 20 can be easily pushed through. The width of the fixed body 61 and the movable body 63 is preferably narrower than the width of the packing bag 36.

  In this configuration, the cutting mechanism 60 protrudes the cutting blade 71 in a state where the medicine package sheet 20 is sandwiched between the fixed body 61 and the movable body 63, and pushes the medicine package sheet 20, so that the movable body 63 is moved in the horizontal direction. It is only necessary to move the cutting blade 71 forward slightly after that, and it is not necessary to operate the cutter blade, for example, to cut a saw as in the prior art. Miniaturization can be achieved and space can be saved. Moreover, since the cutting blade 71 is pushed out in a state where the medicine package sheet 20 is pinched between the fixed body 61 and the movable body 63, the medicine package sheet 20 can be surely cut cleanly.

Since the guide body 87 for guiding the front edge of the medicine package sheet 20 to the cutting mechanism 60 is provided between the rubber roller 33 upstream of the cutting mechanism 60 and the fixed frame 61, the medicine package sheet 20 is cut by the cutting mechanism 60. After that, since the guide body 87 guides the leading edge of the subsequent medicine package sheet 20 to the cutting mechanism 60, even if the front edge portion of the succeeding medicine package sheet 20 has a curved warp, the cutting mechanism. 60 is sent stably.
Since the vertically long opening 70 for accommodating the cutting blade 71 is formed in the movable body 63, the cutting blade 71 is positioned within the area of the movable body 63, and the cutting blade 71 does not protrude from the movable body 63. It can be made compact.

  As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this. For example, in the above embodiment, the movable body 63 and the cutting blade 71 are driven by the cam mechanism connected to the single drive motor 77. However, the power transmission mechanism is not limited to the cam mechanism, and the movable body. 63 and the cutting blade 71 can be driven, and the cutting blade can be pushed out last, and a crank mechanism or the like may be used.

1 is an external perspective view of a medicine packaging machine according to an embodiment of the present invention. It is a schematic diagram which shows the state which looked at the inside of the medicine packaging machine from the side. It is a perspective view which shows a chemical | medical agent packaging mechanism. It is a perspective view which shows a heat seal mechanism. It is a perspective view which shows a cutting | disconnection mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Medicine packaging machine 3 Medicine storage mechanism 20 Medicine packaging sheet 27 Heat seal mechanism 33, 33A Rubber roller (medical packaging sheet feed roller)
36 Packaging bag 60 Cutting mechanism 61 Fixed body 63 Movable body 70 Opening 71 Cutting blade 77 Drive motor 83, 84 Rubber roller (medicine sheet feeding roller)

Claims (4)

A medicine storage mechanism for storing a plurality of medicines is provided, the medicine arbitrarily taken out from the medicine storage mechanism is guided to a medicine packaging sheet, the medicine packaging sheet is thermally welded to form a sachet, and a predetermined position is set by a cutting mechanism In a medicine packaging machine that cuts medicine packaging sheets with
The cutting mechanism includes a fixed body that receives the medicine pack sheet, and a movable body that sandwiches the medicine pack sheet in cooperation with the fixed body, and the movable body can protrude toward the fixed body. With a cutting blade, in a state where the medicine package sheet is sandwiched between the fixed body and the movable body, the cutting blade is projected to push the medicine package sheet.
A pharmaceutical packaging machine characterized by that. On the upstream side and the downstream side of the cutting mechanism, there are a pair of medicine package sheet feeding rollers that rotate about an axis perpendicular to the feeding direction of the medicine package sheet, and the medicine sheet feeding roller on the upstream side and the fixed body A guide body for guiding the leading edge of the medicine package sheet to the cutting mechanism,
The drug packaging machine according to claim 1, wherein: In the movable body, a vertically long opening for storing the cutting blade is formed, and in the fixed body, a concave groove for receiving the cutting blade is formed.
The medicine packaging machine according to claim 1 or 2, wherein The movable body and the cutting blade are driven by a common drive motor.
The medicine packaging machine according to any one of claims 1 to 3, wherein the medicine packaging machine is provided.

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