JPH06115506A - Blister packaging device - Google Patents

Abstract

PURPOSE:To provide a blister packaging device highly adaptable for the production of many kinds of packaged articles and suitable for hermetic packaging of a small-sized solid material. CONSTITUTION:A forming device 6, a seal roller 8 and a sheet stamping device 23 are driven by their respective servomotors M1, M2 and M3 and film is advanced through the forming part and the stamping part by their respective direct drive motors DM1 and DM2. Motor controllers C1, C2, C3, DC1 and DC2 drive their respective motors M1, M2, M3, DM1 and DM2 synchronously according to the instructions from a standard speed instructing means 27 and the correction signal from an encoder signal comparing means 26. Therefore, this blister packaging device is easy to operate and maintain and provides a high general purpose application and an excellent positional accuracy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blister package apparatus for producing a blister sheet for holding a plurality of solid substances such as tablet capsules containing a drug, and more specifically, a drive motor is provided for each drive portion. The present invention relates to a blister package device having expanded versatility.

[0002]

2. Description of the Related Art In recent years, a drug administered in a hospital or the like is often handled in the form of a sheet that holds a plurality of tablet capsules containing the drug. Conventionally, a tablet sheet is manufactured by forming a recess in a transparent or translucent film, inserting a tablet capsule into the recess, and welding and sealing an aluminum foil thereto.

The overall structure of a blister package device for manufacturing tablet sheets will be described with reference to FIG. A transparent film 15 wound in a roll is rotatably attached to the left side of the main body. The film 15 passes through the heating device 7 composed of a pair of upper and lower heating plates, goes around the film feed pocket roller 1 via the forming device 6, and is sent to the sealing device 21 via the shutter 17. An aluminum foil 19 wound in a roll is rotatably attached to the upper right of the main body. The film 15 and the aluminum foil 19 are overlapped and passed through the sealing device 21. A sheet punching machine 23 is installed on the right side of the sealing device 21.

Next, the operation of the blister package device having the above structure will be described. The film 15 is fed from one of the two rolls to the right in the figure. Film 15
As the material of the material, PP (polypropylene), PVC (vinyl chloride) or the like is used. Web-shaped film 1
5 is heated to 110 to 130 degrees by the heating plate 7 to be in a semi-molten state in which it can be molded. Then, the molding device 6 forms a concave portion for accommodating the tablet in the film 15.
Since the number of rows, the number of columns, and the shape of the concave portions of the molding die of the molding device 6 differs depending on the type of tablet sheet to be manufactured, the tablet sheet is replaced every time the tablet sheet is changed.

The film 15 having the concave portion is wound around the outer circumference of the film feed pocket roller 1. The structure of the film feed pocket roller 1 is shown in FIG. A pocket 3 is formed on the surface of the film feed pocket roller 1 at a position where a convex portion opposite to the concave portion formed on the film 15 is fitted. Since different tablet sheets have different pocket rows and shapes, the film feed pocket roller 1
Are replaced each time the tablet sheet is different. The film feed pocket roller 1 fits with a convex portion formed on the film 15 to give intermittent driving to the film 15.

The tablet capsules, which are aligned and supplied from the feeder 18 in the shutter 17, are inserted into the concave portions of the film 15. Film 1 with tablet capsules inserted
The aluminum foil 19 sent from the roll on the upper right side of the apparatus is superposed on 5, and is welded by the sealing device 21. Then, the film 15 on which the aluminum foil 19 is superposed is rotated around the film feed pocket roller 13 and sent to the sheet punching machine 23. Film feed pocket roller 13
Is the same as the film feed pocket roller 1.
It is fitted with the convex portion formed on No. 5 to give intermittent driving to the film 15. With the sheet punching machine 23, aluminum foil 19
The film 15 laminated with is punched into a predetermined sheet shape to complete a tablet sheet.

In the blister package apparatus having the above-mentioned structure and operation, the flow of the film 15 is the heating plate 7
And a molding unit including the molding device 6, a sealing unit including the sealing device 21, and a sheet punching unit including the sheet punching machine 23. The flow of the film 15 in the forming section and the sheet punching section is
It is an intermittent drive. That is, the sealing device 21 of the sealing portion
In contrast to the continuous sealing work performed in step 1, the press-molding work performed in the forming unit 6 of the forming unit and the punching work of the sheet punching machine 23 in the sheet punching unit are performed by temporarily stopping the film 15. This is because it is an individual work.

Therefore, the driving state of the film 15 changes from the intermittent drive to the continuous drive during the process and from the continuous drive to the intermittent drive again, so that the dancer roller 10 seals between the molding portion and the seal portion. A dancer roller 11 is provided between the section and the sheet punching section to assist the film length. Moreover, the two intermittent drives are not the same. First, the intermittent driving in the molding unit is for forming the concave portions of the film 15 one by one, and the concave portions having about 10 rows in the traveling direction and about 6 columns at right angles are formed per molding.
The intermittent cycle is about 50 times per minute. On the other hand, the intermittent driving in the sheet punching section is for sheet punching work performed for each of the left and right two sheets (each sheet includes 2 to 4 rows of concave sections), and the intermittent cycle is the number of rows of concave sections per sheet. Depends on FIG. 4 shows an example of the relationship between the formation of a recess in the forming section and the punching in the sheet punching section.

The forming apparatus 6 itself and the sheet punching machine 23 themselves also have the film 15 flowing through the relevant portion.
It receives the intermittent drive equal to the drive of the intermittent drive. However, since both the molding operation and the sheet punching operation are performed while the film 15 of the relevant portion is stopped, these driving are not performed at the same time as the driving of the film 15 of the relevant portion.
When the type of tablet sheet to be manufactured is changed, the feed amount of the film 15 per one time in the molding section or the sheet punching section may change. Summarizing the above, the blister package apparatus is configured to continuously drive the sealing section at a constant speed, and to perform the molding apparatus 6, the film 15 in the molding section, the sheet punching machine 23, and the film 15 in the sheet punching section.
4 types of intermittent drive, and 5 types of drive for convenience are required. Therefore, in order to give each part a required drive, a common drive means (not shown) is used to change gears by a change gear (not shown), and the parts other than the seal part are intermittently driven through an index unit (not shown). ing.

[0010]

However, the conventional blister package device has the following problems. Pharmaceutical companies manufacture various types of tablet sheets having different numbers of rows, columns, and shapes of recesses, and it is necessary to manufacture a plurality of types of tablet sheets with one blister package device. When changing the type of tablet sheet manufactured as described above, the molding device 6 and the sheet punching machine 2 are used.
3, the film feed pocket roller 1 and the film feed pocket roller 13 are replaced. At this time, further, the change gear and index unit for driving the sheet punching machine 23, the change gear and index unit in the molding section and the sheet punching section,
Each needs to be replaced. Furthermore, if the specifications of the film 15 or the aluminum foil 19 to be used change, it becomes necessary to change the driving speed also at the seal portion. Therefore, a large amount of replacement work is required as a whole, and the adjustment time is long and complicated.

Further, since the number of sets of change gears is large, mechanical backlash cannot be avoided, and it is difficult to obtain the required positional accuracy. If the positional accuracy is poor, a defective sheet such as a defective shape, a poor sealing, or a missing lock is likely to occur. In addition, even though one unit can support many types of blister packages, there are many replacement parts associated with type changes such as rollers, change gears, index units, etc. The types that could support were limited. Due to these factors, there is a problem that the operation is complicated both at the time of operation and at the time of maintenance, and an operation error easily occurs.

If a separate drive source is arranged in each drive portion and independent control is performed, many of the above problems will be solved, but it becomes necessary to operate the drive sources accurately in synchronization. If the operation is performed with the synchronism deviated, for example, there arises a problem that the relative positions of the recess formation and the sheet punching are displaced (see FIG. 5). If this deviation is large, tablet crushing may occur due to punching. The present invention has been made to solve the above-mentioned problems, and can easily change the sheet type in a short time, can perform high-precision operation without mechanical rattling, and can eliminate a large inventory of replacement parts. An object of the present invention is to provide a blister package device that can be adapted to various types, is easy to operate and maintain, and can accurately synchronize each part.

[0013]

To achieve this object, the present invention provides a molding means for forming a recess in a transparent or translucent film, and a cover film for the film having a solid material inserted in the recess. A cover film attaching means for attaching, a sheet cutting means for cutting the film attached with the cover film, and a pocket for fitting with a convex portion on the opposite side of the concave portion of the film in which the concave portion is formed is a surface. A first film feed pocket roller that is formed in the vicinity of the forming means and drives the film, and a pocket that engages with a convex portion on the opposite side of the concave portion of the film having the concave portion formed on the surface thereof; A blister package device having a second film feed pocket roller for driving the film in the vicinity thereof, the first servo driving the forming means. A first controller for controlling the first servo motor, a second servo motor for driving the cover film attaching means, a second controller for controlling the second servo motor, and a sheet cutting means. A third servo motor to drive, a third controller to control the third servo motor, a first direct drive motor to drive the first film feed pocket roller, and a first control to control the first direct drive motor. Means, a second direct drive motor for driving the second film feed pocket roller, second control means for controlling the second direct drive motor, the first controller, the second controller and the third controller.
A controller, a system controller for integrally controlling the first control means, and the second control means are provided, and the system controller uses the drive signal of the cover film adhering means as a reference and the drive signal of the molding means and the sheet. The configuration is characterized in that the time difference of the drive signal of the cutting means is detected and these are corrected.

[0014]

The molding device of the blister package device of the present invention comprising the above means forms a recess in a transparent or translucent film. Further, the solid material inserting means inserts a solid material into the recess. The cover film attaching means attaches the cover film to the film to seal the concave portion containing the solid material. Further, the sheet cutting means cuts the film into a predetermined sheet shape to complete a package sheet.

Here, the blister package device of the present invention comprises two film feed rollers. The pocket formed on the surface of the film feeding roller fits with the convex portion formed on the surface opposite to the concave portion of the film, and applies a feeding force to the film. The film feed roller is located immediately after the molding device and immediately before the sheet cutting means,
A direct drive motor for generating intermittent rotation and a control means for the direct drive motor are provided. By this, intermittent drive is applied to the film at each location, and formation of recesses and sheet cutting are enabled. The molding device, the cover film attaching means, and the sheet cutting means each include a drive motor and its control means. Each of these direct drive motors and each drive motor receives overall control of the system controller via their respective control means,
Synchronous operation is performed according to the type of tablet sheet to be manufactured.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tablet sheet manufacturing apparatus which is an embodiment of the blister package apparatus of the present invention will be described below with reference to the drawings. The overall appearance of the tablet sheet manufacturing apparatus is roughly the same as that of the conventional art, and will be described with reference to FIG. The main part of the tablet sheet manufacturing apparatus is shown in FIG. Two sets of transparent films 15 wound in a roll are rotatably attached to the left side of the main body. The film 15 passes through the heating device 7 composed of a pair of upper and lower heating plates, and then the forming device 6
The film feed pocket roller 1 is circulated through the shutter and is sent to the sealing device 21 through the shutter 17. Two sets of rolled aluminum foil 19 are rotatably attached to the upper right of the main body. The film 15 and the aluminum foil 19 are overlapped and passed through the sealing device 21. A sheet punching machine 23 is installed on the right side of the sealing device 21.

Next, the operation of the tablet sheet manufacturing apparatus having the above structure will be described. The film 15 is fed from one of the two rolls to the right in the figure. When the film 15 of the roll is exhausted, the film 15 is fed from the other set of rolls, and the rear end of the previous film 15 and the new film 15 are fed.
The leading end of the film is spliced by the film splicing device 4, and the continuous film is continuously fed. Since the film 15 is not delivered from the roll during this joining operation, a looper mechanism (not shown) provided in the film splicer 4 compensates for this, so that continuous operation is not hindered. There is. If the empty roll of the film 15 is replaced with a new roll, further continuous operation becomes possible. The material of the film 15 is PP (polypropylene), PVC
(Vinyl chloride) or the like is used.

The film 15 exiting the film splicer 4 is sent to the heating device 7 while a constant tension is applied by the dancer roller 24. The web-shaped film 15 is heated to 110 to 130 degrees by the heating device 7 to be in a semi-molten state in which it can be molded. Then, the molding device 6 forms a concave portion for accommodating the tablet in the film 15. Molding device 6
Is the number of rows, columns, and
Since the tablet sheet has a different shape, the tablet sheet is replaced every time the tablet sheet is changed. The molding device 6 is driven by the servomotor M1. The encoder E1 monitors the drive timing of the molding apparatus 6 and sends a signal to a system controller described later.

The film 15 in which the recess is formed passes around the outer circumference of the film feed pocket roller 1 via the guide roller 9. A pocket 3 is formed on the surface of the film feed pocket roller 1 at a position where the convex portion 5 on the opposite side of the concave portion formed on the film 15 is fitted. Different tablet sheets have different pocket rows and shapes, so the film feed pocket roller 1 is replaced every time a different tablet sheet is used. The flow of the film 15 from the heating device 7 to the film feed pocket roller 1 is shown in FIG. As shown in FIG. 3, the film feed pocket roller 1 has its shaft 2 directly connected to a direct drive motor DM1 which gives intermittent rotation, and is fitted with a convex portion 5 formed on the film 15 to give intermittent drive to the film 15. .

In the concave portion of the film 15, tablet capsules which are aligned and supplied from the feeder 18 in the shutter 17 are inserted. Film 1 with tablet capsules inserted
The aluminum foil 19 sent from the roll on the upper right side of the apparatus is superposed on 5, and is welded by the sealing device 21. Like the roll of the film 15, two rolls of the aluminum foil 19 are attached so that they can be operated continuously. Here, the movement of the film 15 in the shutter 17 and the sealing device 21 is continuous constant-speed driving, unlike the intermittent driving in the molding device 6 described above, and the servo motor M2 is used.
Driven by the seal roller 8. For this reason,
A dancer roller 10 is provided between the film feed pocket roller 1 which is intermittently driven and the shutter 17 which is continuously constant speed driven to compensate for the length of the film 15. The encoder E2 monitors the drive timing of the seal roller 8 and sends a signal to a system controller described later.

Film 1 on which aluminum foil 19 is laminated
5 rotates around the dancer roller 11 and is sent to the slitter 12 to be perforated.
After being rotated around 3, the sheet is sent to the sheet punching machine 23 and punched into a predetermined sheet shape. The film feed pocket roller 13 is given intermittent rotation by the direct drive motor DM2, and by the same action as the film feed pocket roller 1, the film 1 on which the aluminum foil 19 is superposed.
5 is given intermittent drive. The dancer roller 11 includes a sealing device 21 that is continuously driven at a constant speed and a slitter 1 that is intermittently driven.
Along with the film 2, the length of the film 15 is compensated. Slitter 1
2 itself and the sheet punching machine 23 itself are driven by a servomotor M3. Punched film 15
Is completed as a tablet sheet and stored in the product chute 14. Further, the encoder E3 is the sheet punching machine 23.
Is monitored and the signal is sent to the system controller described later.

In the tablet sheet manufacturing apparatus having the above-described structure and operation, the main parts of the present invention are such that each constituent part has its own servo motor or direct drive motor (M1, M2, M3, DM1, and DM).
2) being driven, and having their own control means. In order to understand the advantages over the prior art due to this, the difference in motion required by each of the above-mentioned components will be described. These movements can be roughly classified into continuous constant speed driving required by the seal roller 8 and intermittent driving required by the other components. Further, the intermittent drive is divided into an intermittent drive of the forming device 6 and the film feed pocket roller 1 therefor corresponding to the formation of the concave portion, and an intermittent drive of the sheet punching machine 23 and the film feed pocket roller 13 therefor corresponding to the sheet punching. Yes, these do not match.

First, the intermittent driving cycle corresponding to the formation of the concave portion is for the concave portion forming work in the molding apparatus 6, and is 50 times per minute in the case of the tablet sheet manufacturing apparatus of the present embodiment. And in terms of the number of tablet sheets in one molding, 2
The concave portions corresponding to 6 sheets (2 columns * 1 to 3 rows) are formed. This depends on the type of tablet sheet produced. On the other hand, in the sheet punching machine 23, the number of tablet sheets punched in one punching is always two (2 columns * 1 row), and therefore the intermittent sheet punching cycle is
50 times per minute depending on the number of sheets molded at once
It is necessary to take three different values, 100 times per minute or 150 times per minute, which is different from the intermittent cycle for forming recesses. FIG. 4 shows an example of the relationship between the recess formation per sheet forming on the film 15 and the sheet punching.

Next, the relationship between the drive of the molding apparatus 6 and the film feed pocket roller 1 corresponding to the formation of the recess will be considered. These intermittent cycles are equal to about 50 times per minute, but when the recess is formed in the molding apparatus 6, the film 15
Must be stopped, so they cannot move at the same time. The film feed time is about 1/3 of the entire cycle time, and when the cycle time is 1.2 seconds, the film feed time, that is, the drive time of the direct drive motor DM1 is 0.4 seconds. is there. The servomotor M1 is driven in the remaining 0.8 seconds, and the molding operation by the molding device 6 is performed.

When the molding device 6 is replaced to change the type of tablet sheet to be manufactured, the feed amount of the film 15 per change may change, so that the film feed pocket roller 1 is driven per drive. The rotation angle must be changed while maintaining the same intermittent cycle. on the other hand,
The molding device 6 is adapted to change the type of tablet sheet to be manufactured only by exchanging the molding die. Therefore, they require separate drives despite the same intermittent cycle. In view of this, in the tablet sheet manufacturing apparatus of this embodiment, the direct drive motor DM1 is used to drive the film feed pocket roller 1 that needs to change the rotation angle in one drive. The driving of the servomotor M1 is intermittently driven by the index unit. This is because it is desirable that the servomotor M1 itself is continuously rotating because the servomotor M1 also serves as the drive of the encoder E1.

The same applies to the sheet punching machine 23 and the film feed pocket roller 1 corresponding to sheet punching.
The relationship with 3 also holds. Therefore, the continuously rotating servo motor M3 drives the encoder E3 and the sheet punching machine 23 via the index unit, and the sheet punching machine 23 responds to the change of the sheet type only by exchanging the punching die. . Like the sheet punching machine 23, the slitter 12 is also driven by the servomotor M3 via the index unit.
On the other hand, the direct drive motor DM2, which rotates intermittently, drives the film feed pocket roller 13 and the sheet type is changed.
The rotation angle in one drive is changed.

Since the seal roller 8 in the seal portion is continuously rotated, it is driven by the servomotor M2. The servo motor M2 also drives the encoder E2. Summarizing the above, the tablet sheet manufacturing apparatus is configured to continuously drive the sealing unit at a constant speed, the molding device 6, and the film 1 in the molding unit.
5, the sheet punching machine 23, and four types of intermittent driving of the film 15 at the sheet punching section, which are five types of driving, are required. Therefore, in the tablet sheet manufacturing apparatus of this embodiment, these five types of driving are performed by separate servo motors or direct drive motors and their control means.

Therefore, in the tablet sheet manufacturing apparatus of this embodiment, the mechanical parts necessary for changing the tablet sheet to be manufactured are only the members directly related to the shape of the tablet sheet, such as the molding apparatus 6, and the drive system. It is not necessary to replace change gears. For this reason, it is not necessary to store a large number of replacement parts, which makes it easy to handle multi-product production. Further, since the number of replacements of mechanical parts when changing the tablet sheet to be manufactured is small, there is little possibility of work error and maintenance is easy. Furthermore, since there is no mechanism that mechanically links the drive parts, there is no mechanical play, and high positional accuracy is achieved in each part, reducing the occurrence of defective sheets such as defective shapes, poor sealing, or missing locks. Can be suppressed.

When a large number of drive parts each have a dedicated drive source and control means as in the present embodiment, the drive parts are not necessarily synchronized, so it is necessary to consider some kind of synchronization system. . If the operation is performed with the synchronism being deviated, a relative deviation (see FIG. 5) may occur between the recess forming position and the sheet punching position, and the length of the film 15 in the dancer roller (10 and 11) between the driving portions may be increased. This is because there is a possibility that the amount of boosting of will be insufficient or excessive and will interfere with continued operation. When the positional deviation between the recess formation and the sheet punching as shown in FIG. 5 is large, tablet crushing may occur due to punching. Since many of the tablets are pharmaceuticals, tablet crushing is not preferable not only in appearance but also in hygiene. Further, when the film 15 or the aluminum foil 19 is broken at the same time as the tablet is crushed, the crushed powder of the tablet is scattered in the tablet sheet manufacturing apparatus, or when the tablet is a capsule containing a liquid drug, the drug solution is It may be scattered in the device and cause the device to malfunction.

Therefore, the synchronizing system in the tablet sheet manufacturing apparatus of this embodiment will be described. First, among the driving parts of the tablet sheet manufacturing apparatus of this embodiment, the sealing part has the least driving factor fluctuation. Unlike other parts, the seal part is a constant speed drive,
The driving speed is influenced by only the difference in the types of the film 15 and the aluminum foil 19 used, regardless of the size of the sheet to be manufactured. Therefore, it is preferable to use the seal portion as a reference for synchronizing each drive.

Therefore, in the tablet sheet manufacturing apparatus of the present embodiment, the drive of the molding section and the punching section is corrected on the basis of the seal drive to establish synchronization. Therefore, as shown in the block diagram of FIG. 6, each servo motor and direct drive motor (M1, M2, M3,
DM1 and DM2) controllers (C1, C2,
The system controller 25 is installed to integrally control C3, DC1, and DC2), and the molding section,
An encoder (E for monitoring the actual drive status of the seal part and punching part to the system controller)
1, E2, and E3). The system controller 25 includes the encoders (E1, E2,
And a comparison means 26 for sending a correction signal to each motor controller (C1, C2, C3, DC1, and DC2) based on a signal from E3), and a standard speed command means 27 for instructing a standard speed of each motor. ing. The standard speed of each motor is the film 15 and aluminum foil 1 used.
It is stored in the ROM 28, which differs depending on the 9 types or the types of tablet sheets to be manufactured.

When a combination of the type of film 15 and aluminum foil 19 to be used and the type of tablet sheet to be manufactured is given by operating the setting panel 29, the standard speed command means 27 causes the servo motors corresponding to the combination. And direct drive motors (M1, M2, M3, DM
1 and DM2) standard speed is read from the ROM 28, and each motor controller (C1, C2, C3, CD
1 and CD2) to each servo motor and direct drive motor (M1, M2, M3, DM1, and DM2). In each part, the encoder is also rotated by the rotation of the drive shaft driven by the servo motors (M1, M2, M3). The driving status of each part is displayed on the display 30.

First, in the molding section, the servomotor M1
The molding drive shaft driven by and the encoder E1 are 1:
It is rotating at a rotation ratio of 1. It should be noted that one revolution of the forming drive shaft forms a recess of 1 to 3 sheets (depending on the sheet type). In the seal portion, the seal roller 8 driven by the servo motor M2 and the encoder E2 rotate at a rotation ratio of 1: 1. It should be noted that one rotation of the seal roller 8 seals 6 to 16 sheets (depending on the sheet type).
Further, in the punching section, the punching drive shaft driven by the servomotor M3 and the encoder E3 have a ratio of 1: 1.
It is rotating at a rotation ratio of. One sheet (regardless of sheet type) is punched by one rotation of the punching drive shaft. The rotation of each of the above encoders (E1, E2, and E3) is sent to the system controller 25 as a signal.
In the system controller 25, each encoder (E1,
The signals sent from E2 and E3) are divided and compared for each one sheet.

Here, the meanings of division and comparison will be described with reference to the graphs of FIGS. 7 and 8. In the case of a molding section, for example, 1 to 3 sheets are formed during one rotation of the encoder E1 in the case of a molding unit, so one cycle of the signal of the encoder E1 is
It means converting to a virtual signal having 3 cycles. That is, if the sheet type being manufactured is 1 of the encoder E1.
If the concave portion for two sheets is formed per rotation, two periods of the divided virtual signal correspond to one period of the encoder E1 signal.

In the case of the seal portion, since 6 to 16 sheets are sealed by one rotation of the encoder E2, the kind of sheet being manufactured is a type in which 10 sheets are sealed per one rotation of the encoder E2. If so, 10 periods of the divided virtual signal correspond to 1 period of the encoder E2 signal. In this way, by taking the synchronization timing by the divided virtual signal, the timing accuracy is improved. In the case of the punching portion, since only one sheet is punched by one rotation of the encoder E3, the encoder E3 signal is directly used for comparison without being divided. Figure 7
In addition, the graph of FIG. 8 shows a case where the seal roller 8 seals 10 times during one rotation and forms a recess for two punches by forming the recess once, and the curve a shows the encoder E1 signal, A curve b represents the divided virtual signal, a curve c represents the encoder E2 signal, a curve d represents the divided virtual signal, and a curve e represents the encoder E3 signal.

The encoder signal comparing means 26 compares the virtual signal curve b, the curve d, and the encoder signal curve e with each other to detect the time lag between the driving of the seal portion and the driving of the other portion. In order to correct this, each motor controller (C1, C3,
Send to CD1, CD2). For example, in the case of FIG. 7, since there is no displacement between the molding section and the punching section, no correction signal is output. On the other hand, in FIG. 8, the molding portion (curve b) precedes the sealing portion (curve d), and the punching portion (curve e) is conversely delayed. In such a case, a correction signal for deceleration is sent to the motor controller (C1, CD1) of the molding section, and a motor controller (C3, CD2) of the punching section.
A correction signal for increasing the speed is sent to, and the state is corrected as shown in FIG.

In this embodiment, a virtual signal is set to the drive signals of the molding means and the sheet cutting means with reference to the drive signal of the cover film sticking means, and the synchronization timing is taken by the virtual signal. Is improved. When the type of tablet sheet to be manufactured is changed, the synchronization of the respective parts is often deviated, and thus such a correction operation is performed to achieve the synchronization. As a result, the respective drive parts are accurately operated in synchronization, and various adverse effects due to the deviation of synchronization are prevented. It should be noted that the above embodiments do not limit the present invention at all, and it is needless to say that various modifications and improvements can be made without departing from the scope of the invention. For example, in the present embodiment, the tablet sheet manufacturing apparatus for loading the tablet medicine into the sheet is used, but other than the tablet medicine, confectionery, tabletop articles and the like may be packaged in a blister shape. Further, although the aluminum foil is used as the back film for sealing the package in this embodiment, a resin film or paper may be used instead of the aluminum foil.

[0038]

As is apparent from the above description, in the blister package manufacturing apparatus of the present invention, a dedicated motor or direct drive motor is arranged for each drive portion to drive independently, and the blister package is controlled by the integrated control means. Since each part is synchronized, it is possible to manufacture a wide variety of seats without preparing a large number of replacement parts, and the replacement and adjustment work associated with the change of seat types is easy, and therefore the operation and maintenance are easy. Therefore, a blister package manufacturing apparatus is realized which is less likely to cause an operational error and has no mechanical backlash, which is excellent in positional accuracy, and in which each drive portion can be reliably operated synchronously to manufacture a correct sheet.

[Brief description of drawings]

FIG. 1 is a side view showing the overall configuration of a tablet sheet manufacturing apparatus that is an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a configuration of a main part of a tablet sheet manufacturing apparatus that is an embodiment of the present invention.

FIG. 3 is a perspective view showing a configuration of a film feed pocket roller in the tablet sheet manufacturing apparatus which is an embodiment of the present invention.

FIG. 4 is a diagram showing the relationship between recess formation and sheet punching in the tablet sheet manufacturing apparatus that is an embodiment of the present invention.

FIG. 5 is a diagram showing a correctly manufactured sheet and a sheet manufactured in a state in which a synchronization shift occurs.

FIG. 6 is a block diagram showing the relationship between the control device and each drive part in the tablet sheet manufacturing apparatus that is an embodiment of the present invention.

FIG. 7 is a graph showing each encoder signal and its divided virtual signal when synchronization is correctly established.

FIG. 8 is a graph showing each encoder signal and its divided virtual signal when synchronization is deviated.

FIG. 9 is a side view showing an overall configuration of a tablet sheet manufacturing apparatus according to a conventional technique.

[Explanation of symbols]

1, 13 Film feed pocket roller 3 Pocket 5 Convex part 6 Molding device 8 Seal roller 15 Film 17 Shutter 21 Sealing device 23 Sheet puncher 25 System controller DM1, DM2 Direct drive motor CD1, CD2 Direct drive motor controller M1, M2, M3 Servo motor C1, C2, C3 Servo motor controller

Claims (1)

[Claims] 1. A molding means for forming a recess in a transparent or translucent film, a cover film sticking means for sticking a cover film to the film having a solid material inserted in the recess, and a sticking of the cover film. A sheet cutting means for cutting the attached film, and a pocket for fitting with a convex portion on the opposite side of the concave portion of the film having the concave portion formed on the surface, for driving the film in the vicinity of the molding means A blister package apparatus having a film feed pocket roller and a second film feed pocket roller for driving the film in the vicinity of the sheet cutting means, the pocket being formed on the surface so as to fit with the convex portion on the opposite surface, Servo motor for driving the first servo motor, a first controller for controlling the first servo motor, and the cover film A second servomotor for driving the attaching means, a second controller for controlling the second servomotor, a third servomotor for driving the sheet cutting means, and a third controller for controlling the third servomotor A first direct drive motor for driving the first film feed pocket roller, a first control means for controlling the first direct drive motor, a second direct drive motor for driving the second film feed pocket roller, A second controller that controls the second direct drive motor; and a system controller that integrally controls the first controller, the second controller, the third controller, the first controller, and the second controller. The system controller has a drive signal for the cover film attaching means. Blister packaging device, characterized in that to correct these by detecting the time difference of the drive signal of the drive signal and the sheet cutting means of said forming means as a reference.