JP7401772B2 - medicine package binding machine - Google Patents

Description

The present invention relates to a medicine package binding machine.

BACKGROUND OF THE INVENTION Medications provided to patients at hospitals and dispensing pharmacies are divided and packaged into long wrapping paper for each dose by a drug packaging device. When taking a dose, a single-dose packet is separated from a long packet of paper. If you are taking multiple medications, you will need to separate multiple packets. Medications that are heat-packed in stick shapes such as blister packs, PTP, and granules, and medicines that are heat-packed in rectangular shapes such as herbal medicines are not packaged in sachet paper, so they are provided separately from the sachet paper. Ru. In this way, for patients taking multiple drugs, packaging paper, blister packs, PTP, heat packaging, etc. (hereinafter referred to collectively as "medicine packaging" in this specification) Separated items are called "packages.") were provided in a mixture.

When there are multiple medicine packages, in order to prevent accidental ingestion or forgetting to take a dose, the multiple medicine packages for one dose are bundled and bound together with a stapler or tape. However, this method requires a lot of time and effort to bind the pages, which increases the workload of pharmacists and nurses. There were also problems such as stapler needles being swallowed along with the medicine, fingers being injured by the needles, and medicine packages being damaged.

Patent Document 1 and Patent Document 2 describe a binding device that can bind papers without using a needle, but such binding devices solve problems such as accidental swallowing of needles, etc. , it is not suitable for continuously binding long parcels of paper.

In recent years, a medicine package binding machine that can bind multiple packets in the longitudinal direction has been put into practical use (TOJIST; registered trademark, https://www.youtube.com/watch?v=dHxpcQ4RLyE).

In this medicine package binding machine, both sides of the binding part of the package paper were curved roundly, the pressing force was weak, and the appearance was poor. It was necessary to support the stacked packets with your hands to prevent them from falling off the upper and lower teeth. In addition, the direction in which the sachets are inserted is fixed, which limits the installation location and is not easy to use. Furthermore, there were problems such as the upper and lower teeth spinning idly for a long time, causing the teeth to wear out in a short period of time, resulting in a short service life. Chinese herbal medicines and the like packaged in aluminum foil other than polycello are difficult to crimp, so there was a need to be able to adjust the rotation speed and the pressing force of the upper and lower teeth.

Patent No. 6168146 specification Patent No. 6258686 specification

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a medicine package binding machine that has a strong binding force at the binding portion and has a good appearance. In addition, we have a medicine packaging binding machine that can stably feed stacked packets, a medicine packaging binding machine that is easy to use because it allows you to insert packaging paper from both sides, and medicines that have a long life with less tooth wear. An object of the present invention is to provide a medicine package binding machine whose rotation speed can be adjusted.

As a means for solving the above problems, the present invention includes the following:
A rotatable first gear and a second gear are provided, and a plurality of medicine packages are inserted into the meshing portion of the first gear and the second gear, and the plurality of medicine packets are inserted into the meshing portion of the first gear and the second gear, and the plurality of medicine packages are inserted by the first gear and the second gear. In a medicine package binding machine configured to bind packages,
Holding parts are provided on both sides or one side of each of the first gear and the second gear,
The holding portion is provided coaxially with the first gear and the second gear, and the holding portion moves the side portions of the binding portions of the plurality of medicine packages in the direction in which the first gear and the second gear engage. It is configured to hold.
Preferably, the holding portion has an outer diameter smaller than the pitch circles of the first gear and the second gear.

In the present invention, the pressing parts provided on both sides or one side of each of the first gear and the second gear press the binding part in a direction opposite to the direction in which the side curves, so that the pressing force of the medicine package is increased and the binding part is The sides of the book are not curved, so it looks good and can be bound neatly.

Both ends of the teeth of the first gear and the second gear are chamfered.
Therefore, the medicine package is prevented from being damaged at the corner portions at both ends of the first gear and the second gear.

The angle of the inclined tooth surfaces on both sides of the tooth bottom of each of the first gear and the second gear is 30° to 50°, and the pitch of each tooth of the first gear and the second gear is 0.8 mm to 1. .2mm.
By setting the angle of the inclined tooth surface and the tooth pitch within this range, medicine packages can be bound with appropriate pressure.

Moreover, the present invention
A rotatable first gear and a second gear are provided, and a plurality of medicine packages are inserted into the meshing portion of the first gear and the second gear, and the plurality of medicine packets are inserted into the meshing portion of the first gear and the second gear, and the plurality of medicine packages are inserted by the first gear and the second gear. In a medicine package binding machine configured to bind packages,
a medicine package support part that supports the plurality of medicine packages;
A guide portion is provided for guiding the non-binding side edges of the plurality of medicine packages.
Thereby, the side edges of the medicine packages can be guided by the guide section, so that a plurality of medicine packages can be stably fed.
It is preferable that the guide part is movable in a direction perpendicular to the medicine package insertion direction. By adjusting the guide section according to the width of the medicine packages, the side edges of medicine packages of different widths can be guided by the movable guide section, so that a plurality of medicine packages can be stably fed.

It is preferable that the guide part is retractable from the medicine package support part.
When stacking blister packs, sticks, Chinese medicine, etc. on sachet paper, the work of stacking blister packs, etc. is facilitated by tilting the arm part and retracting it from the medicine package support part.

The medicine package support part is provided to protrude forward from the main body of the medicine package binding machine, and the main body is provided with leg parts.
As a result, the medicine package support part can be used in front of the table on which the medicine package binding machine is placed, and long medicine packages can be hung downward, making it easier to transport the medicine packages.

A rotation direction changeover switch is provided to change the rotation direction of the first gear.
By switching the rotational direction of the first gear according to the installation location and usability, the first gear can be inserted from either side of the meshing portion of the first gear and the second gear, improving usability.

A first sensor for detecting the approach of the plurality of medicine packages is provided on one side of the meshing part of the first gear and the second gear, and a second sensor for detecting the approach of the plurality of medicine packages on the other side. ,
When the first sensor detects the approach of the plurality of medicine packages, driving the first gear to rotate in a direction in which the plurality of medicine packages can be inserted;
When the second sensor detects the approach of the plurality of medicine packages, it is configured to rotate the first gear in a direction in which the plurality of medicine packages can be inserted.
Since the first sensor or the second sensor detects the approach of the medicine package and then rotates the first gear, idle rotation of the first gear and the second gear is prevented, and the teeth of the first gear and the second gear are Reduced wear and increased lifespan.

A rotation speed adjustment switch is provided to adjust the rotation speed of the first gear.
When stacking blister packs, sticks, herbal medicines, etc. on sachet paper, by reducing or increasing the rotation speed of the first gear using the rotation speed adjustment switch, the work of stacking blister packs, etc. can be performed reliably.

The second gear is provided movably in a direction in which the teeth of the second gear move toward and away from the teeth of the first gear, and includes a gear pressing spring that presses the second gear against the first gear. A member is provided.
Since the teeth of the second gear are spaced apart from the teeth of the first gear depending on the number of stacked medicine packages, an appropriate pressing force can be ensured.

A pressing force adjusting member is provided to adjust the pressing force of the gear pressing spring member.
By adjusting the pressing force of the second gear against the first gear according to the material of the blister pack, stick, herbal medicine, etc. to be stacked on the packaging paper using the pressing force adjustment member, even aluminum foil can be easily crimped. can.

A gear separation spring is provided between the first gear and the second gear, which biases the teeth of the second gear in a direction that separates them from the teeth of the first gear.
When the pressing spring member is removed, the second gear is separated from the first gear by the gear separation spring, making it easy to maintain and replace the teeth of the first gear and the second gear.

comprising a guide wall portion that guides the edges on the binding side of the plurality of medicine packages;
It is preferable that the guide wall portion is movable in a direction toward or away from a meshing portion of the first gear and the second gear.
As a result, by adjusting the position of the guide wall with respect to the meshing part of the first gear and the second gear according to the width of the seal part of the medicine pack, the medicine pack can be held within the width of the seal part of the medicine pack. It can be bound.

It is preferable to include a mechanism for separating the first gear from the second gear.
As a result, if an abnormality occurs during the binding of medicine packages, the first and second gears are stopped, and the first gear is separated from the second gear, allowing the packaging paper to be easily pulled out. be able to.

According to the present invention, the pressing portions provided on both sides or one side of each of the first gear and the second gear press the binding portion in a direction opposite to the direction in which the side of the binding portion curves, so that the binding portion of the medicine package is crimped. Since the force is stronger and the sides of the binding part are pressed down, the sides of the binding part do not curve, making it possible to bind neatly and with a good appearance.
Furthermore, by switching the rotational direction of the first gear according to the installation location and ease of use, the first gear can be inserted from either side of the meshing portion of the first gear and the second gear, improving usability.
Furthermore, since the first sensor or the second sensor detects the approach of the medicine package and then rotates the first gear, idle rotation of the first gear and the second gear is prevented, and the rotation of the first gear and the second gear is prevented. Teeth wear is reduced and lifespan is increased.
In addition, since the rotation speed can be adjusted, it becomes easier to stack blister packs, sticks, herbal medicines, etc. on the packaging paper, and the blister packs, etc. can be reliably crimped.

FIG. 1 is a perspective view of a medicine package binding machine according to an embodiment of the present invention. FIG. 3A is a cross-sectional view showing an example of a state in which a medicine bag containing a PTP-packaged medicine and a packaging paper are closed, and a cross-sectional view showing another example. FIG. 2 is a perspective view (a) showing a state in which the main body cover and gear cover of the medicine package binding machine are removed, and a cross-sectional view taken along the line AA (b). A perspective view (a) of the main body of the medicine package binding machine with the main body cover and front cover removed, as seen diagonally from the front, and a perspective view (b) as seen diagonally from the rear. FIG. 3 is a plan view of the operation panel of the medicine package binding machine. FIG. 3 is an enlarged side view of the medicine package support section. FIG. 3 is a side view showing a state in which the arm portion of the medicine package binding machine is protruded (a) and a state in which the arm portion is tilted; FIG. 3 is a perspective view showing a state in which a first gear and a second gear are engaged. A front view (a) and a side view (b) of the gear body. An enlarged view showing the tooth shape of the gear body. A partially enlarged view of the gear body. FIG. 3 is an enlarged cross-sectional view showing a situation in which packets are bound by the first gear and the second gear. A perspective view of a gear frame. FIG. 3 is a perspective view of the front frame of the gear frame as seen diagonally from the front (a) and from the diagonally rear (b). FIG. 4 is a perspective view of the rear frame of the gear frame as seen from diagonally front (a) and diagonally rear (b). FIG. 3 is a perspective view showing the gear frame with the rear frame removed. A cross-sectional view of the gear frame. A front view of the medicine package binding machine. A block diagram of a control device. FIG. 7 is an enlarged view (a) of the engaging portion as seen from the packaging paper insertion direction and a plan view (b) of the guide wall member, showing a first modification having a depth adjustment mechanism for the fixed guide groove. FIG. 7 is an enlarged view of the engaging portion as seen from the packaging paper insertion direction, showing a second modification having a depth adjustment mechanism for the fixed guide groove. FIG. 7 is an enlarged view of the engaging portion seen from the packaging paper insertion direction, showing a third modification having a depth adjustment mechanism for the fixed guide groove. FIG. 12 is a partial side view of a medicine package binding machine seen from the packaging paper insertion direction, showing a fourth modification having a fixed guide groove depth adjustment mechanism. FIG. 3 is a plan view showing the difference between the seal portions of medicine packages and sachet paper. FIG. 7 is a cross-sectional view of a gear frame showing a modification having a first gear and second gear opening mechanism.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1, 3, and 4 show a medicine package binding machine 1 according to the present invention. The medicine package binding machine 1 includes a main body 2, a medicine package support section 3, a first gear 4a, a second gear 4b, a drive motor 5, and a foot switch 6.

The main body 2 of the medicine package binding machine 1 includes a base plate 7, a main body cover 8 consisting of a top plate, left and right side plates, and a rear plate and covering the base plate 7, and a front cover 9 covering the front side of the main body cover 8. There is.

The base plate 7 is provided with four leg parts 10 and one leg part 11 located below the medicine package support part 3. The base plate 7 is provided with a first gear 4a, a second gear 4b, and a drive motor 5, which will be described in detail later.

A portable handle 12 is provided on the top plate of the main body cover 8. Furthermore, a pressing force adjustment screw 38 provided on a gear frame 30, which will be described later, is exposed at the front of the upper plate of the main body cover 8.

The front cover 9 is provided with a package inserting guide portion 13 that protrudes laterally to the left and right. An opening 14 facing a second gear 4b, which will be described later, is formed between the left and right package paper insertion guide sections 13, and the opening 14 is closed with a removable gear cover 15. An operation panel 16 is provided on the upper surface of the front cover 9. As shown in FIG. 5, the operation panel 16 is provided with a first rotational direction changeover switch 17a, a second rotational direction changeover switch 17b, and a rotational speed adjustment switch 18.

The first rotational direction changeover switch 17a and the second rotational direction changeover switch 17b are used to change the direction of rotation of the first gear 4a and to change the direction of transport of the packaged paper. When transporting the packet from right to left, pressing the first rotation direction switch 17a on the right turns on the lamp 17c on the right. When the paper packets are conveyed from left to right, when the second rotation direction changeover switch 17b on the left side is pressed, the lamp 17d on the left side lights up.

The rotational speed adjustment switch 18 is for controlling the rotational speed of the drive motor 5, which will be described later, and switching the rotational speed of the first gear 4a into a plurality of stages (three stages in the embodiment). The number of lamps 18a, 18b, and 18c that are lit changes depending on the stage of rotational speed.

The medicine package support section 3 is capable of supporting a plurality of packaging papers M1 and M2 on its upper surface. A fixed guide is provided between the medicine package support section 3 and the package paper insertion guide section 13 for guiding the binding side edges of the plurality of package papers M1 and M2 bound by the first gear 4a and the second gear 4b. A groove 19 is formed. As shown in FIG. 6, the fixed guide groove 19 is formed between the lower surface 19a of the sachet paper insertion guide section 13, the upper surface 19b of the medicine package support section 3, and between the sachet paper insertion guide section 13 and the medicine package support section 3. and a vertical surface 19c in between.

The medicine package support section 3 is provided with arm sections 20 so as to protrude forward from both left and right sides. As shown in FIG. 7, the arm portion 20 is rotatably attached to the tip of an arm base portion 42 provided on left and right side frames 41, which will be described later, so as to be tilted downward by a rotation shaft 21. The arm portion 20 is provided with a slide groove 22, as shown in FIG. The slide groove 22 is provided with a movable guide portion 23 that guides the non-stitched edges of the plurality of packets and is movable in a direction perpendicular to the direction in which the packets are inserted. The sliding position of the movable guide portion 23 can be adjusted by a fixing screw 24 shown in FIG. As long as the width of the sachets is always the same, the movable guide 23 may be immovable in the direction orthogonal to the inserting direction of the sachets.

As shown in FIG. 8, the first gear 4a and the second gear 4b each include a gear body 25 that meshes with each other, pressing plates 26 on both sides of the gear body 25, and a gear shaft 27.

As shown in FIG. 9, the gear body 25 is circular and has teeth formed on its outer periphery. As shown in FIG. 10, the tooth shape of the gear body 25 includes a tooth tip 25a made of a cylindrical surface with a radius r1, a tooth bottom 25b made of a cylindrical surface with a radius r2, and a tooth shape between the tooth bottom 25b and the tooth tip 25a. It is formed with an inclined tooth surface 25c having an inclination angle θ, and chamfers 25d are provided on both ends of the tooth, as shown in FIG. The gear main body 25 of the example has a thickness of 2.3 mm, a pitch circle pc diameter of 30.9 mm, and a number of teeth of 95.The tooth pitch p is 1 mm, the radius r1 of the tooth tip 25a is 0.25 mm, and the tooth bottom is 1 mm. The radius r2 of 25b is 0.23 mm, and the chamfer 25d is 0.34 mm at 40°.

The angle θ of the two inclined tooth surfaces 25c on both sides of the tooth bottom 25b and the pitch p of the teeth greatly affect the crimping of the wrapping paper. The angle θ of the inclined tooth surface 25c is 30° to 50°, preferably 40°. If the angle θ of the inclined tooth surface 25c is less than 30 degrees, the pressure applied to the packaging paper will be too strong and the packaging paper will be damaged. If the angle θ of the inclined tooth surface 25c is 50° or more, the pressure force against the packets becomes weak, and sufficient pressure bonding between the packets cannot be obtained.

The tooth pitch p is 0.8 mm to 1.2 mm, preferably 1.0 mm. When the tooth pitch p is less than 0.8 mm, the area of the inclined tooth surface 25c decreases, and the pressing force decreases. If the pitch p of the teeth exceeds 1.2 mm, the crimping area per unit length decreases and sufficient crimping between the packets cannot be achieved.

The pressing plates 26 are coaxially disposed on both sides of the first gear 4a and the second gear 4b. As shown in FIG. 12, the holding plate 26 has an outer diameter smaller than the pitch circle of the first gear 4a and the second gear 4b and larger than the root circle of the first gear 4a and the second gear 4b. When the gear bodies 25 of the gears 4b are engaged, the outer peripheries of the pressing plates 26 of the first gear 4a and the pressing plates 26 of the second gear 4b do not come into contact with each other. The presser plate 26 has a disk shape, but may have an annular shape. Moreover, the holding plate 26 can be provided on one side of the first gear 4 and the second gear 4b. Furthermore, the holding plate 26 may be integrally formed with the first gear 4 and the second gear 4b.

As shown in FIG. 8, the gear shaft 27 has a hub 28 at one end, and the gear main body 25 and the presser plate 26 are attached to the hub 28 with mounting screws 29.

The first gear 4a and the second gear 4b are provided inside the main body cover 8 so that the second gear 4b is located above the first gear 4a, as shown in FIG. The meshing part of the gear body 25 of the first gear 4a is exposed to the fixed guide groove 19 from the opening 3a formed in the medicine package support part 3, and the meshing part of the gear body 25 of the second gear 4b is exposed to the fixed guide groove 19 from the opening 3a formed in the medicine package support part 3. The fixed guide groove 19 is exposed through the opening 14 .

As shown in FIG. 13, the first gear 4a and the second gear 4b are supported by a gear frame 30 inside the main body cover 8. The gear frame 30 includes a front frame 31 erected at the front of the base plate 7 and a rear frame 32 mounted on the back side of the front frame 31 and erected from the base plate 7. A backing plate 30a is attached to the front surface of the front frame 31 of the gear frame 30 to prevent the wrapping paper sandwiched between the first gear 4a and the second gear 4b from going too deep.

As shown in FIG. 14, the front frame 31 has a shaft hole 31a penetrating in the front-rear direction, a rectangular recess 31b recessed downward from the top surface, and a front surface communicating with the recess 31b. A front opening 31c and a notch 31d are provided, and a rear opening 31e and a notch 31f are provided on the rear surface so as to communicate with the recess 31b.

A slide block 33 is slidably accommodated in the recess 31b of the front frame 31, as shown in FIG. A shaft hole 33a is formed in the slide block 33 and extends through the slide block 33 in the front-rear direction. Further, as shown in FIG. 14(b), a hole 31g is formed in the bottom of the recess 31b, and a hole 33b is formed in the bottom of the slide block 33 shown in FIG. A gear separation spring 34 is housed. Two positioning pins 33c are provided on the upper surface of the slide block 33, as shown in FIGS. 16 and 17.

Two gear pressing springs 35 are disposed around the positioning pin 33c of the slide block 33. Since there are two gear pressing springs 35, the load of the pressing force is dispersed, the durability of the gear pressing springs 35 and the slide block 33 is improved, and the slide block 33 is stabilized. A plurality of spring pressing plates 36 are provided above the gear pressing spring 35. An upper frame 37 is attached to the upper end of the front frame 31 and closes the upper opening of the recess 31b. A screw hole 37a is formed in the upper frame 37, and a pressing force adjustment screw 38 is screwed into the screw hole 37a. The lower end of the pressing force adjustment screw 38 is in contact with the spring pressing plate 36. The pressing force of the gear pressing spring 35 can be adjusted by turning the pressing force adjustment screw 38 with a hexagonal handle (not shown) to move the spring press plate 36 up and down. The pressing force of the gear pressing spring 35 is about 1400 N in this embodiment, and up to about six medicine packages can be bound.

As shown in FIG. 15, the rear frame 32 has a first shaft hole 32a formed by penetrating a large diameter hole 32a' on the front surface and a small diameter hole 32a'' on the rear surface, and a substantially oval hole 32b on the front surface. A second shaft hole 32b is formed by penetrating through the small-diameter hole 32b'' on the rear surface.

The gear shaft 27 of the first gear 4a is inserted into a shaft hole 31a of the front frame 31 and a first shaft hole 32a of the rear frame 32, and is supported by two bearings 39a and 39b with respect to the front frame 31. The frame 32 is rotatably supported by one bearing 39c. A drive gear 40 is attached to the end of the gear shaft 27 of the first gear 4a on the opposite side from the hub 28.

The gear shaft 27 of the second gear 4b is inserted into the shaft hole 33a of the slide block 33 of the front frame 31, and is also inserted into the second shaft hole 32b of the rear frame 32, and is inserted into the shaft hole 33a of the slide block 33 of the front frame 31. is supported by two bearings 39a and 39b, and the rear frame 32 is supported by one bearing 39c. This allows the second gear 4b to move toward and away from the first gear. A counterweight 48 is attached to the end of the gear shaft 27 of the second gear 4b on the opposite side from the hub 28 to maintain balance with the hub 28 side.

As mentioned above, the gear shafts 27 of the first gear 4a and the second gear 4b are supported by a total of three bearings 39a, 39b, and 39c, so the first gear 4a and the second gear 4b mesh with each other. It is possible to sufficiently resist the reaction force when binding a plurality of packets, and a stable pressing force can be ensured.

Returning to FIG. 4, side frames 41 are attached to the base plate 7 on both sides of the front frame 31 of the gear frame 30. An arm base 42 is attached to the side frame 41, and the above-described arm 20 is attached to the tip of the arm base 42 so as to be tiltable. As shown in FIGS. 6 and 18, the right side frame 41 is provided with a first packaging paper detection sensor 43a that detects the approach of the packaging paper inserted from the right side into the medicine packaging support part 3. Furthermore, the left side frame 41 is provided with a second packaging paper detection sensor 43b that detects the approach of the packaging paper inserted into the medicine package support portion 3 from the left side. The first packaging paper detection sensor 43a and the second packaging paper detection sensor 43b may detect the leading edge of the packaging paper, or may detect a mark attached to the packaging paper.

The drive motor 5 is attached to a motor frame 44 attached to the base plate 7, as shown in FIG. As shown in FIG. 3, a motor gear 45 is provided on the drive shaft of the drive motor 5, and the motor gear 45 meshes with the drive gear 40 of the first gear 4a.

As shown in FIG. 1, the foot switch 6 is installed on the floor and connected to a control device 50 provided inside the main body cover 8 via a cord 46.

The reference numeral 47 shown in FIG. 1 is a medicine pack stocker that stacks a large number of medicine packs M3 such as Chinese herbal medicines to be bound in a predetermined direction together with the packaging papers M1 and M2. The medicine package M3 may be heat-packed in a stick shape. Even if PTP-packaged medicines are cut individually, they are too small to be bound together with packaging paper M1 and M2, so as shown in Figure 1, each tablet is cut in advance and stored in medicine bag M4. By keeping it in place, this medicine bag M4 can be bound together with the sachets M1 and M2. It is preferable that the medicine bag M4 is provided with a binding margin m by extending one edge of the opening, and this binding margin m is bound together with the sachet paper M1. In this case, as shown in Figure 2(a), it will be easier to take out the medicine if the opening faces outward (the side opposite to the packets that are bound at the same time); If you aim it toward the side of the wrapping paper that will be bound, you can make it harder for the medicine to fall off.

As shown in FIG. 19, the control device 50 includes a first rotation direction switch 17a, a second rotation direction switch 17b, a rotation speed adjustment switch 18, a first packaging paper detection sensor 43a, a second packaging paper detection sensor 43a, and a second packaging paper detection sensor 43a. Signals from the sensor 43b and the foot switch 6 are input, and the drive motor 5 is configured to be turned on/off, and to control the rotational direction and rotational speed.

Next, the operation of the medicine package binding machine 1 having the above configuration will be explained.

First, hold the handle 12 and place the medicine package binding machine 1 at a desired position on the table. If the packaging paper to be bound is long, as shown in Figure 7, if you place the medicine package support part 3 forward from the edge of the table, you can feed the packaging paper in a hanging state. , easy to work with. In this case, one leg 11 of the medicine package support part 3 comes off the table, but the center of gravity of the medicine package binding machine 1 is at the rear, and it is stabilized by the four legs 10 located behind the engagement part. So it won't tilt or fall over.

If you want to insert the sachet paper from right to left, press the first rotation direction switch 17a on the right side of the operation panel 16. If you want to insert the sachet paper from left to right, press the second rotation direction switch 17a on the left side of the operation panel 16. Press the rotation direction changeover switch 17b. Also, press the rotation speed adjustment switch 18 to set the desired rotation speed. If the number of sachets to be stacked is small, increase the rotation speed, or when there are many sheets, or when stacking blister packs, sticks, herbal medicine, etc. on sachets for the prescribed dosing period and binding them. If the work is complicated, it is recommended to reduce the rotation speed.

As shown in FIG. 1, a plurality of packaging papers M1 and M2 to be closed are overlapped. At this time, make sure that the binding margins are in the same direction and the sachets with the same dosage period overlap. Direct the binding side of the stacked multiple packets of paper toward the fixed guide groove 19 located between the medicine package support section 3 and the package paper insertion guide section 13, and insert the tip of the package paper into the medicine package support section 3. and insert the binding side edge of the packaging paper into the fixed guide groove 19.

In this state, the foot switch 6 is depressed to feed the packets M1 and M2 in a desired direction. As shown in FIG. 18, when the first packaging paper detection sensor 43a detects the approach of the packaging papers M1 and M2, the control device 50 starts the drive motor 5. Thereby, the rotational force of the drive motor 5 is transmitted to the gear shaft 27 of the first gear 4a via the motor gear 45 and the drive gear 40 of the first gear 4a, and the first gear 4a rotates in a predetermined direction. In this way, even if the foot switch 6 is stepped on, the drive motor 5 does not rotate until the first packaging paper detection sensor 43a detects the approach of the packaging papers M1 and M2, so that the first gear 4a and the second gear 4b are rotated. Idle rotation is prevented, tooth wear is reduced, and life is extended.

When the first gear 4a rotates, the second gear 4b that meshes with the first gear 4a rotates, and the plurality of packets M1 and M2 are successively bound at the meshing portion of the first gear 4a and the second gear 4b. and sent downstream. At the meshing portion between the first gear 4a and the second gear 4b, the tooth tip 25a and the tooth bottom 25b mesh, and a plurality of portions are formed between the inclined tooth surface 25c of the first gear 4a and the inclined tooth surface 25c of the second gear 4b. Wrappers M1 and M2 are pressed.

At this time, since the first gear 4a and the second gear 4b are provided with chamfers 25d, the packaging papers M1 and M2 are prevented from being damaged at the corners of both ends of the first gear 4a and the second gear 4b. be done. The stacked plurality of packets M1 and M2 are bound by pressing the continuous concave portions and convex portions formed by the pressure by the first gear 4a and the second gear 4b. At the meshing part between the first gear 4a and the second gear 4b, the packaging papers M1 and M2 tend to form a U-shape in the width direction, as shown by the broken line in FIG. Therefore, the outer peripheral edge of the pressing plate 26 of the second gear 4b presses the side portions of the bound portions of the packaging papers M1 and M2 in the direction in which the first gear 4a and the second gear 4b engage, and the packaging paper M1 , M2 is prevented from curving. In this embodiment, the press plate 26 is provided on both the first gear 4a and the second gear 4b, but it may be provided on either one of the first gear 4a and the second gear 4b. By providing the pressing plates 26 on both the first gear 4a and the second gear 4b, the surfaces of the packaging papers M1 and M2 that are made into convex portions by the first gear 4a and the surfaces of the wrapping paper M1 and M2 which are made into convex portions by the second gear 4b are It is possible to effectively press the side portions of the binding portion from both sides by pressing the sides of the packaging papers M1 and M2.

The wrapping paper M1, M2 bound by the first gear 4a and the second gear 4b is guided by the fixed guide groove 19 and the movable guide part 23 on the binding side and the non-stitching side. Automatically sent out by rotation.

If the binding force is weak, the pressing force can be increased by turning the pressing force adjusting screw 38 clockwise with a hexagonal handle (not shown) to compress the gear pressing spring 35. Conversely, if the binding force is strong, the pressing force can be increased by turning the pressing force adjustment screw 38 counterclockwise to extend the gear pressing spring 35.

If any abnormality occurs during the binding operation, the rotation of the first gear 4a can be stopped by taking your foot off the foot switch 6.

If there are medicine packets M3 of medicines such as blister packs, sticks, Chinese medicines, etc. that are not packaged in the packaging papers M1 and M2, these medicine packets M3 are stacked in the medicine packaging stocker 47 as shown in FIG. It is placed near the medicine package binding machine 1. The same applies to the medicine bag M4 containing PTP-packaged medicine. Furthermore, if the movable guide section 23 becomes an obstacle to the work, the arm section 20 is tilted downward and evacuated from the medicine package support section 3.

Then, while the first gear 4a and the second gear 4b are binding and sending out the plurality of packets M1 and M2, the packet with a predetermined dosing time is brought into contact with the meshing portion of the first gear 4a and the second gear 4b. Before entering the medicine package, the medicine package M3 or medicine bag M4 is taken out from the medicine package stocker 47, stacked on the package of the predetermined dosing period, and fed into the meshing part of the first gear 4a and the second gear 4b. The medicine bag M4 can be bound together with the sachets of the sachets M1 and M2. At this time, if the movable guide portion 23 is tilted down, it becomes easier to stack the medicine packet M3 or the medicine bag M4 on the sachets M1 and M2.

The bound packets M1, M2, medicine packets M3, or medicine bags M4 can be separated and provided to patients at different times of administration. The separated packets, medicine packs M3, or medicine bags M4 are bound for each dose, thereby preventing accidental ingestion or forgetting to take them. Furthermore, since the bound portion can be easily pulled apart by hand, each packet can be separated and taken.

To perform maintenance on the first gear 4a and the second gear 4b, as shown in FIG. 3, remove the gear cover 15 of the front cover 9 to expose the second gear 4b. The state of the meshing portion of the gear 4a can be confirmed. Furthermore, when the pressing force adjustment screw 38 is turned counterclockwise several times to eliminate the pressing force of the gear pressing spring 35, the slide block 33 is pushed up by the gear separation spring 34, and the second gear 4b is separated from the first gear 4a. do. This allows you to check the condition of the tooth surface in detail. When replacing the second gear 4b, the mounting screw 29 is removed, the second gear 4b and the holding plate 26 are removed from the hub 28 of the gear shaft 27, and the second gear 4b can be replaced with a new one.

In the above embodiment, after the foot switch 6 is depressed, when the first packaging paper detection sensor 43a or the second packaging paper detection sensor 43b detects the approach of the packaging papers M1 and M2, the first gear 4a is activated. However, even if the foot switch 6 is not pressed, when the first packaging paper detection sensor 43a or the second packaging paper detection sensor 43b detects the approach of the packaging papers M1 and M2, the first gear is rotated. 4a may be rotated.

FIG. 20(a) shows a depth adjustment mechanism for the fixed guide groove 19. In the depth adjustment mechanism, the vertical surface 19c of the fixed guide groove 19 is configured by a guide wall member 51 that is separate from the package paper insertion guide section 13 and the package paper support section 3, and the guide wall member 51 is connected to the first gear 4a. The second gear 4b is movable toward or away from the meshing portion of the second gear 4b. The guide wall member 51 extends from the packaging paper insertion side of the packaging paper support section 3 to the packaging paper delivery side. As shown in FIG. 20(b), the adjustment screw 53 is inserted into the bracket 13a protruding from the side surface of the sachet paper insertion guide part 13 and the medicine package support part 3, and the washer 13b is fixed to the adjustment screw 53. By attaching the adjusting screw 53 rotatably and immovably in the axial direction, and screwing the adjusting screw 53 into female threads 52 formed at both ends of the guide wall member 51, the adjusting screw 53 can be turned. The distance between the meshing portion of the first gear 4a and the second gear 4b and the vertical surface 19c can be adjusted.

The guide wall portion 51 may have a groove shape that constitutes the upper surface 19a, the lower surface 19b, and the vertical surface 19c of the fixed guide groove 19, as shown in FIG. Further, as shown in FIG. 22, the fixed guide groove 19 may have an L-shape with an upper surface 19a and a vertical surface 19c, or conversely, an L-shape with a lower surface 19b and a vertical surface 19c. In the case of the L-shaped guide member 51, it is preferable to enable it to rotate around a support shaft 51a provided on the upper surface 19a side. Alternatively, as shown in FIG. 23, the front cover 9 may be moved forward and backward together with the sachet insertion guide 13 and the sachet paper support section 3, or the horizontal rotation shaft 9a provided at the top of the front cover 9 may be moved. The depth of the fixed guide groove 19 may be adjusted by rotating it around the center.

As shown in FIG. 24, the medicine package M3, which is made of Chinese herbal medicine or the like and is already packaged in aluminum at a pharmaceutical factory, has a smaller sealed portion s than the packaging papers M1 and M2. Therefore, when binding medicine packets M3 with small seal portions s overlapping paper packets M1 and M2, the guide wall member 51 of the fixed guide groove 19 is moved in the direction approaching the engaging portion, and the vertical surface 19c By reducing the distance between the two, it is possible to bind the medicine package M3 within the width of the seal part s.

FIG. 25 shows the upper and lower gear opening mechanism. The upper and lower gear release mechanism allows the first gear 4a to move in a direction away from the second gear 4b. That is, a slide block 54 is provided to support the bearings 39a and 39b of the first gear 4a, and the first shaft hole 31a of the front frame 31 is made into a long hole elongated in the vertical direction, and the first shaft hole 31a of the first gear 4a is inserted into the first shaft hole 31a. By fitting the slide block 54, the first gear 4a is provided so as to be movable toward or away from the second gear 4b. The slide block 54 can maintain meshing between the first gear 4a and the second gear 4b by tightening an adjustment screw 56 that is screwed into a female thread 55 formed on the front frame 31 and pressing it against the slide block 54. can. Further, when the adjusting screw 56 is loosened, the second gear 4b does not go down, but the first gear 4a goes down, so that the engagement between the first gear 4a and the second gear 4b can be released. The adjustment screw 56 is provided with a handle 57 so that it can be operated from the outside.

When the medicine package binding machine 1 is working on binding paper packages, etc., if it becomes necessary to interrupt the closing operation due to some reason such as the paper packages being tilted or misaligned, the first gear 4a and the second gear 4b are used. After stopping the rotation, the adjusting screw 56 is turned using the handle 57 to move the slide block 54 downward. As a result, the first gear 4a is separated from the second gear 4b, and the space between the first gear 4a and the second gear 4b is opened, so that the packaged paper can be easily pulled out.

1 Medicine package binding machine 2 Main body 3 Medicine package support part 4a First gear 4b Second gear 10 Leg part 11 Leg part 17a First rotation direction changeover switch 17b Second rotation direction changeover switch 19 Fixed guide groove 20 Arm part 23 Movable guide Part 25a Tooth tip 25b Tooth bottom 25c Inclined tooth surface 25d Chamfer
26 Holding plate (holding part)
34 Gear separation spring 35 Gear presser spring 38 Pressure force adjustment screw 43a First packaging paper detection sensor (first sensor)
43b Second packaging paper detection sensor (second sensor)
51 Guide wall member 53 Adjustment screw 54 Slide block 56 Adjustment screw M1 Packaging paper M2 Packaging paper M3 Medicine packet M4 Medicine bag

Claims (8)

A rotatable first gear and a second gear are provided, and a plurality of medicine packages are inserted into the meshing portion of the first gear and the second gear, and the plurality of medicine packets are inserted into the meshing portion of the first gear and the second gear, and the plurality of medicine packages are inserted by the first gear and the second gear. In a medicine package binding machine configured to bind packages,
Holding parts are provided on both sides or one side of each of the first gear and the second gear,
The holding portion is provided coaxially with the first gear and the second gear, and the holding portion moves the side portions of the binding portions of the plurality of medicine packages in the direction in which the first gear and the second gear engage. A medicine package binding machine characterized by being configured to press down. The medicine package binding machine according to claim 1, wherein both ends of each of the teeth of the first gear and the second gear are chamfered. The angle of the inclined tooth surfaces on both sides of the tooth bottom of each of the first gear and the second gear is 30° to 50°, and the pitch of each tooth of the first gear and the second gear is 0.8 mm to 1. 3. The medicine package binding machine according to claim 1 or 2, wherein the medicine package binding machine has a diameter of .2 mm. The medicine package binding machine according to any one of claims 1 to 3 , further comprising a rotational direction changeover switch for changing the rotational direction of the first gear. A first sensor for detecting the approach of the plurality of medicine packages is provided on one side of the meshing part of the first gear and the second gear, and a second sensor for detecting the approach of the plurality of medicine packages on the other side. ,
When the first sensor detects the approach of the plurality of medicine packages, driving the first gear to rotate in a direction in which the plurality of medicine packages can be inserted;
Any one of claims 1 to 3 , wherein the second sensor is configured to rotate the first gear in a direction in which the plurality of medicine packages can be inserted when the second sensor detects the approach of the plurality of medicine packages. The medicine package binding machine described. The medicine package binding machine according to any one of claims 1 to 5 , further comprising a rotation speed adjustment switch that adjusts the rotation speed of the first gear. comprising a guide wall portion that guides the edges on the binding side of the plurality of medicine packages;
The medicine package binding machine according to any one of claims 1 to 6 , wherein the guide wall portion is movable in a direction toward or away from a meshing portion of the first gear and the second gear. . The medicine package binding machine according to any one of claims 1 to 7 , further comprising a mechanism for separating the first gear from the second gear.

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