JP3438899B2 - Packaging material feeder of automatic tablet packaging machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging material feeder for feeding a tablet packaging material (medicine packaging sheet) in an automatic tablet packaging machine to an automatic tablet packaging mechanism. In particular, the loading structure of a continuous medicine package sheet (medicine sheet roll) wound around a core tube in a roll shape is improved so that the operation of loading the medicine package sheet roll can be easily performed. 2. Description of the Related Art Heretofore, there is an automatic tablet packaging machine of this type having a configuration as disclosed in, for example, Japanese Patent Application Laid-Open No. 3-69406. In such a conventional automatic tablet packaging machine, a tablet dropped and supplied from a tablet supply mechanism is conveyed toward the automatic packaging mechanism, and a packaging material feeding mechanism is moved to a tablet input position of the automatic packaging mechanism. The medicine package sheet is continuously fed out intermittently from the medicine package sheet roll loaded into the medicine package via the feeding mechanism, and the tablets are collectively fed into the medicine package sheet via the tablet feeding mechanism to form a divided bag. It is designed to be sealed. [0004] However, the packaging material feeding mechanism of the above-mentioned conventional automatic tablet packaging machine, especially when a medicine package sheet roll is loaded, can be rotated in the vertical direction. After inserting the medicine package sheet roll into the loading shaft of the supported rotating disk, the core tube of the medicine package sheet roll is pressed down with a holding plate, and this holding plate is screwed and fixed to the loading shaft. Therefore, there is a problem that the replacement work of the medicine package sheet roll is troublesome. SUMMARY OF THE INVENTION It is an object of the present invention to provide a packaging material feeding device for an automatic tablet packaging machine, which can easily perform a packaging material exchange operation. [0006] In order to solve the above-mentioned problems, the present invention conveys a tablet dropped and supplied from a tablet supply mechanism toward an automatic packaging mechanism, and the automatic packaging mechanism. Packing sheet roll, that is, packaging material
In the automatic tablet packaging machine, the packaging material is fed out from the packaging material feeding mechanism unit loaded with the tablets, and the tablets are collectively charged into the packaging material via the tablet input mechanism unit and sealed in a divided bag shape. The packaging material feed mechanism is rotatably supported in the vertical direction and has a larger diameter than the packaging material roll , a loading shaft protruding horizontally on one surface of a rotation center of the rotating disk, and a loading shaft. Attached via a screw to the tip of the shaft
And a resilient holder made of a leaf spring.
The holder is bent toward the turntable to take up the loading shaft.
A plurality of elastic pieces spread and dispersed in four directions to surround
Is the body formed through between the elastic holding member, one obtained by press fitting the core tube of the packaging material roll loading shaft of said rotating disk
There is . That is, according to the present invention, a loading shaft is projected horizontally on one side of a rotation center shaft of a rotating disk supported rotatably in a vertical direction, and the tip of the loading shaft is provided with the rotating shaft. An elastic holder consisting of a plurality of elastic pieces bent toward the board side and expanded and dispersed in four directions is attached, and a packaging material continuous to a loading shaft of the rotary plate is provided through the elastic holder. Since the core tube wound in the roll shape is press-fitted, the loading and unloading of the packaging material can be performed quickly and easily. An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 2 is an external view of an automatic tablet packaging machine equipped with a packaging material feeder according to the present invention. Reference numeral 1 denotes a tablet packaging machine main body. As shown in FIG. 3, a tablet supply mechanism 10 to be described later is provided in the upper part of the tablet packaging machine main body 1 and tablets selectively supplied from the tablet supply mechanism 10 are provided in a lower part thereof. Automatic packaging mechanism units 60 (described later), which are automatically packaged and discharged, are arranged. In the lower part of the front side of the tablet packaging machine main body 1 on the front side F, an opening 2 serving as an exchange port for medicine package sheets and an inspection / maintenance operation port is provided with the automatic packaging mechanism 60.
The opening 2 is provided with a door body 3 which can be opened and closed freely. The door body 3 is guided and engaged with guide rails 4 provided on both left and right sides in the tablet packaging machine body 1 so as to be slidable in the vertical direction. It is suspended by a pair of left and right constant load suspension mechanisms 6 attached to a fixed frame 5 in the upper part of the tablet packaging machine main body 1. The pair of left and right constant load suspension mechanisms 6, 6
The door body 3 is constituted by a band spring having the same load as that of the door body 3, and the door body 3 can be freely stopped at an arbitrary opening position by the balance. Further, in the figure, reference numerals 7 and 7 denote a pair of right and left magnets mounted on the fixed frame 5 with the constant load suspension mechanisms 6 and 6 interposed therebetween. The magnet catch plates 8, 8 provided at the upper end of the door body 3 correspond to the magnet catch plates 8, 8, respectively.
As shown in FIG. 4, the magnets 7 are attracted to the door body 3 at the uppermost open position of the door body 3 so that the door body 3 can be stably and reliably held and fixed. That is, the tablet supply mechanism 10 includes a cylindrical casing 11 having a large number of storage sections formed in a planar rectangular shape and partitioned in a planar lattice shape.
A tablet storage and supply unit 20 which is inserted into each of the storage units and is arranged in a horizontal plane, and a tablet which is disposed below the casing 11 and selectively dropped and supplied from each of the tablet storage and supply units 20 Receiving a hopper 40 described below,
It is composed of a pair of left and right belt conveyors 50, 50 as tablet conveying means for receiving tablets falling from the hopper section 40, and is selectively dropped and supplied from the tablet storage and supply body 20 by the belt conveyors 50, 50. Tablets are collected in the center of the tablet packaging machine main body 1 in the left-right direction. On the other hand, the automatic packaging mechanism section 60 includes a tablet input mechanism section 70 disposed at the center lower portion between the pair of left and right belt conveyors 50, 50, and a tablet input mechanism section 70.
The tablets P to be charged at a time are collectively loaded into a folded medicine package sheet 101 continuously fed from a medicine package sheet feeding mechanism 200 loaded with a medicine package sheet roll 100, and the medicine package sheet 101 Sealing mechanism 300 for heat-sealing and sealing the package in a bag shape, a cutting mechanism 400 for cutting the medicine package sheet 101 heat-sealed as a sealed package by the heat sealing mechanism 300, and a cutting mechanism 400 And a package discharge guide and transport mechanism 500 for guiding and transporting the package cut by the above to a discharge port 9 opened in the upper side surface of the tablet packaging machine main body 1. The casing 11 of the tablet supply mechanism 10
Tablet storage and supply body 20 inserted and arranged in each storage section in the
As shown in FIG. 5, various tablets are placed at the upper end 21a.
The tablet case 21 includes a cylindrical tablet case 21 made of a transparent synthetic resin body accommodated from the side, and a driving unit 23 to which a lower end portion 21 b of the tablet case 21 is connected via a joint member 22. In the tablet case 21, there is provided an alignment plate 24 connected to a swing arm 23a which is rocked by a motor (not shown) of the drive unit 23. The tablets housed in the tablet case 21 are aligned by the swinging motion of the swing arm 23a, and the tablets are separated and dropped one by one toward the passage 24a below the tablet case 21. In the figure, reference numeral 25 denotes the joint member 22.
As shown in FIG. 6, a tablet detecting device installed on a driving unit 23 to which the tablet case 21 and the aligning plate 24 are connected by a tablet passage 21 as shown in FIG.
The light emitting section 26 is composed of a light emitting element 26 which is made of a light emitting element and is horizontally opposed to each other, and a light receiving section 27 which is made of a phototransistor which receives light from the light emitting section 26. That is, the tablet detecting device 25 counts the tablets by passing the tablets separated one by one by the aligning plate 24 between the light emitting section 26 and the light receiving section 27. The light emitting surface 26a of the light emitting unit 26 and the light receiving surface 27a of the light receiving unit 27
Light diffusing plates 28 each having a waveform on one inner side are provided, and thereby, the light projected from the light emitting unit 26 and the light incident on the light receiving unit 27 are made uniform without being offset. In the drawing, reference numeral 29 denotes a falling passage 24 which is perpendicular to the light projection direction between the light emitting section 26 and the light receiving section 27.
The light reflecting plate 29 is provided on the outer surface of a.
It is made of a metal plate or a white plate or the like polished to a mirror surface, and reflects the light diffused and projected from the light emitting unit 26 through the light diffusing plate 28 so as to reach the light receiving unit 27 side. The detection device 25 is connected to the tablet storage
When installed on the drive unit 23, the joint member 22
The tablet can be reliably detected in a low-sensitivity region such as a dead zone d formed on the outer surface side surrounded by. Further, in the figure, reference numeral 30 denotes a cap made of a transparent synthetic resin body removably covered on the upper end 21a of the tablet case 21. As shown in FIGS. 5 and 7, a lid 32 made of a transparent synthetic resin body hinged by a pin 31 is provided on the upper surface of the cap 30 so as to be openable and closable. Are formed so as to be inclined in the shape of a vertical cross section “F”, and on the upper surface 33 thereof, storage portions 34 and 35 for storing a tablet sample drug A and a desiccant B and a drug name card C And display portions 36 on which the number card D of the doublet case 21 can be arranged. On the other hand, the lid 32 in the shape of a vertical cross section "F" is used.
On the inner side of the rising end face 37, there is formed an insertion groove 38 in which, for example, a medicine name card C or a number card D of the doublet case 21 can be arranged, and the medicine name card C inserted and arranged in this insertion groove 38 is formed. The number card D and the like of the doublet case 21 can be seen through from the outside of the rising end face 37, and the rising end face 37 is formed in an arc-shaped concave surface so that a finger or the like can be easily caught, and is used as a handle for opening and closing. I have. Further, the cap 30 covered by the upper end 21a of each of the doublet cases 21 is shown in FIG.
As shown in the figure, the tablet case 21 is arranged in a saw-tooth shape along the front-rear direction of the tablet packaging machine main body 1, whereby each tablet case 21 is arranged from both front and rear sides of the front side F and the rear side R of the tablet packaging machine body 1. The names of the tablets stored in the tablets can be easily checked visually. As shown in FIGS. 9 to 11, the hopper section 40 has upper and lower left and right side panels 41, 41, the upper portions of which are attached to the left and right lower end sections 11a, 11a of the casing 11 of the tablet supply mechanism section 10, respectively. These side panels 4
1 and 41, the front and rear inclined panels 42 and 42 are separately formed.
Is formed by a pair of left and right separation panels 43, 43, and a V-shaped locking portion 44 is provided at a lower end 43 a of the separation panel 43.
However, on the left and right sides of the upper end 43b, two wide and narrow daruma holes 45 are formed. Further, a conveyor box 46 having a U-shaped cross section for accommodating the belt conveyors 50, 50 is formed separately below the hopper section 40, and the conveyor box 45 is provided with a support frame for the tablet packaging machine main body 1. (Not shown). That is, in order to assemble the hopper section 40, first, the left and right side panels 41, 41
1 and left and right lower end portions 11a, 11a and a conveyor box 4
6 and fixed to the left and right upper ends 46a, 46a with screws (not shown). Next, when assembling the front and rear inclined panels 42, 42, first, the locking portions 44 provided at the lower end portions 43 a of the respective separation panels 43 are connected to the conveyor box 4.
6 is engaged with the front and rear upper ends 46b, 46b from the outside.
5 and 45 are matched with the screw holes 12 and 12 provided in the front and rear lower end portions 11b and 11b of the casing 11 corresponding to the darma holes 45 and 45, respectively. In this state, the screws 47, 47 are screwed from the outside, and the screw shafts 47a, 47 of these screws 47, 47 are screwed.
a is temporarily fixed by sliding the separation panel 43 so that a is located in the narrow portion 45a of the dharma holes 45, 45, and then the screws 47, 47 are fully tightened to thereby secure the front and rear of each of the two. The front and rear inclined panels 4 and 42 are assembled.
The number of screws used for assembling 2, 42 is only eight in total, four each before and after, and the number of screws is significantly smaller than the conventional one. On the other hand, to remove the separation panel 43 of each of the front and rear inclined panels 42, 42, as shown in FIG.
The screw 47 is loosened to a temporarily tightened state. In this state, the separation panel 43 is slid, and the head 47b of the screw 47 is aligned with the wide portion 45b of the dharma hole 45 formed in the separation panel 43, thereby separating the screws. The panel 43 can be easily removed. In the drawing, reference numeral 51 denotes a partition member having an upper end fixed to a central portion in the hopper portion 40 and a lower end hanging down in a curtain shape at a central portion in the width direction on the belt conveyor 50. 51 is made of, for example, a net-like thin film material which is flexible, does not generate repulsion and does not generate static electricity, and is well ventilated. That is, the partitioning member 51 is arranged along the conveying direction of the belt conveyor 50,
As shown in FIG. 10, one of the front and rear inclined panels 42, 42 of the hopper unit 40 from the tablet storage / supply body 20 inserted and arranged in the tablet supply mechanism unit 10, that is, with respect to the transport direction of the belt conveyor 50. The tablet P dropped from the upper part of the right-angled side is made to collide with the other inclined panel 42.
By preventing the tablet P from rebounding, the tablet P is allowed to fall onto the lower belt conveyor 50 as it is, thereby enabling the tablet P to be immediately conveyed to the automatic packaging mechanism 60 as a tablet rebound preventing device. It has the function of. FIGS. 1, 13 and 14 show the packaging material feeding mechanism 200. In FIG. 1, reference numeral 210 denotes a loading section for the medicine package sheet roll 100. The medicine package sheet roll loading section 210 has a free-rotating rotary plate 211 supported rotatably in the vertical direction.
A loading shaft 212 protruding horizontally on one side of a rotation center portion of the rotating disk 211, and an elastic holding member 214 made of a leaf spring material attached via a screw 213 to a distal end portion 212 a of the loading shaft 212. A plurality of elastic pieces 215 are integrally formed on the elastic holder 214,
The plurality of elastic pieces 215 have such a shape that they can be bent toward the rotating plate 211 and spread and dispersed in four directions. That is, the medicine package sheet roll loading section 2
In order for the medicine package sheet roll 100 to be mounted on the rotating disk 211, the loading shaft 21
2 is performed by press-fitting the core tube 100a of the medicine package sheet roll 100 into the medicine package sheet roll 100. Removal can be done quickly and easily. Further, the folded medicine package sheet 101 from the medicine package sheet roll 100 loaded in the packaging material feeding mechanism 200 is intermittently moved to the tablet loading position of the tablet loading mechanism 70 via the guide roller 220. It is being sent to. Further, in the figure, reference numeral 230 denotes a brake mechanism arranged on the back side of the rotary disk 211.
Reference numeral 30 denotes a resistor 2 that can be brought into contact with and separated from the back surface of the rotary disk 211
31 and a solenoid 233 for driving a shaft 232 of the resistor 231. On the other hand, reference numeral 240 denotes a tension lever,
The tension lever 240 is biased by a spring 241 so as to be rotatable in a direction in which the medicine package sheet 101 fed from the medicine package sheet roll 100 is maintained in a tensioned state. A rotary cam 242 is provided on the shaft support of the tension lever 240.
As shown in FIG. 15, first and second limit switches 243 and 244 are provided on the outer periphery of 42. The first and second limit switches 2
Reference numerals 43 and 344 control the brake mechanism 230 so that the feeding and pulling of the medicine pack sheet 101 fed from the medicine pack sheet roll 100 are synchronized with each other, and control the rotation of the turntable 211. is there. That is, as shown in FIG. 15, the tension lever 240 normally keeps its lowered state due to its own weight and the urging force of the spring 241.
It is suppressed by the operation of the brake mechanism 230, and thereby, the medicine package sheet 101 is maintained in a tensioned state. In this state, when the medicine package sheet 101 is pulled out and driven by the driving of a feeding mechanism (not shown) provided in the automatic tablet packaging mechanism 60, FIG.
As shown in FIG. 7, the tension lever 240 rotates upward against the urging force of the spring 241 and the medicine package sheet 101 is rotated.
Maintain tension. As shown in FIG. 17, the tension lever 2
When the fork 40 rises to a certain position, the rotation of the rotating plate 211 is released, and the tension lever 240 is lowered by its own weight and the urging force of the spring 241, and at the same time, the rotating plate 211 is rotated to feed out the medicine package sheet 101. It is something that has become. As is apparent from the above description, according to the present invention, the loading shaft is projected horizontally on one side of the rotation center shaft of the rotating disk supported rotatably in the vertical direction. At the tip of the loading shaft, an elastic holding body composed of a plurality of elastic pieces bent toward the rotating disk side and expanded and dispersed in four directions is attached, and the rotating disk is interposed between the elastic holding members. Since a core tube in which a continuous packaging material is wound in a roll shape is press-fitted into the loading shaft, the packaging material can be quickly and easily loaded and removed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a packaging material loading state showing an embodiment of a packaging material feeding device in an automatic tablet packaging machine according to the present invention. FIG. 2 is an external view of an automatic tablet packaging machine. FIG. 3 is an explanatory diagram showing an internal configuration of the automatic tablet packaging machine. FIG. 4 is an essential part cross-sectional view showing a holding state of the door body at an uppermost open position. FIG. 5 is an exploded perspective view of a tablet case which is a tablet storage and supply body inserted into the tablet supply mechanism. FIG. 6 is an enlarged cross-sectional view of the tablet detection device installed in the automatic tablet packaging machine. FIG. 7 is an enlarged sectional view of a main part showing a cap-covered state and an open / closed state of a lid at the upper end of the tablet case. FIG. 8 is an explanatory view showing an arrangement state of a lid of a cap covered on an upper end portion of the tablet case. FIG. 9 is a perspective view showing an assembled state of the hopper and the casing. FIG. 10 is a sectional view showing an assembled state of the hopper and the casing. FIG. 11 is an explanatory view showing a screwed state between the hopper and the casing. FIG. 12 is an explanatory view showing a detached state of the hopper. FIG. 13 is an explanatory view showing a packaging material feeding mechanism. FIG. 14 is an exploded perspective view showing a loaded state of the packaging material in the packaging material feeding mechanism. FIG. 15 is an explanatory diagram showing a state of controlling the tension of the packaging material by the tension lever. FIG. 16 is an explanatory view showing a state of controlling the tension of the packaging material by the tension lever. FIG. 17 is an explanatory diagram showing a state in which the tension lever of the packaging material is controlled by the tension lever. [Description of Signs] 1 ・ ・ ・ Tablet packaging machine main body, 10 ・ ・ ・ Tablet supply mechanism, 100 ・ ・ ・ Medicinal package sheet roll, 100a ・ ・ ・ Core tube, 101 ・ ・ ・ Medicinal package sheet, 200 ・ ・・ Packaging material feeding mechanism section, 210: medicine package roll loading section, 211: rotating plate, 212: loading shaft, 214: elastic holder, 215: elastic piece, 60 ...・ Automatic packaging mechanism, P ・ ・ ・ Tablets.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65B 1/30 B65B 41/00-41/18 B65H 16/00-16/10

Claims (1)

(57) Claims 1. A tablet dropped and supplied from a tablet supply mechanism is conveyed toward an automatic packaging mechanism, and a medicine package sheet roll, ie, Packaging material roll
In the automatic tablet packaging machine, which feeds out the packaging material from the loaded packaging material feeding mechanism, and collectively inserts the tablets into the packaging material via the tablet loading mechanism and seals it in a divided bag shape,
The packaging material feeding mechanism section is supported rotatably in the vertical direction, a rotating disk having a larger diameter than the packaging material roll , and a loading shaft protruding horizontally on one surface of a rotation center portion of the rotating disk,
A plate bar attached to the tip of this loading shaft via screws
And an elastic holding member made of
It is bent toward the turntable and surrounds the loading shaft.
A plurality of elastic pieces spread and dispersed in four directions are integrally formed.
Is, through between the elastic holding member, the packaging material feed device for an automatic tablet packaging machine, characterized in that the core tube was pressed of the packaging material roll loading shaft of said rotating disk.