KR102505132B1 - Blister packaging machine and Manufacturing method of blister pack - Google Patents

Abstract

The present invention relates to a blister packaging machine and a method for manufacturing a blister pack,
Poor formation of the pocket portion at the time of starting operation is prevented more reliably. When it is determined that the pocket portion 2 is present at the judgment positions P1 and P2, the sealing device 17 and the punching device 20 are moved and disposed at a position corresponding to the position of the pocket portion 2. On the other hand, when it is determined that there is no pocket portion 2 at the judgment positions P1 and P2, the sealing device 17 and the like are moved and arranged in a position according to the estimated position of the first pocket portion. Therefore, before the first pocket part reaches the sealing device 17 etc., the sealing device 17 etc. can be previously arrange|positioned at the position according to the estimated position of the first pocket part. Thereby, when the pocket part 2 arrives at the judgment position P1, P2 WHEREIN: In order to ensure the movement time of sealing apparatus 17 grade|etc., it completes without lengthening the time of 1 cycle. As a result, it is possible to more reliably prevent formation defects of the pocket portion 2 due to differences in the preheating mode of the container film 3 .

Description

Blister packaging machine and manufacturing method of blister pack {Blister packaging machine and Manufacturing method of blister pack}

The present invention relates to a blister packaging machine for manufacturing a blister pack containing predetermined contents and a method for manufacturing the blister pack.

A blister pack includes a container film having a pocket portion in which various contents are accommodated, and a cover film mounted so as to seal the opening side of the pocket portion with respect to the container film.

A blister pack is manufactured by a blister packaging machine equipped with conveying means, preheating means, pocket portion forming means, feeding means, sealing means, punching means, and the like. The conveying means intermittently conveys the strip-shaped container film to the preheating means, the pocket portion forming means, the filling means, the sealing means, and the punching means. The preheating means preheats the container film to a softened state. The pocket portion forming means forms the pocket portion in the softened container film by, for example, a pressure forming method or the like. The supply means supplies the contents to the formed pocket portion. The sealing means attaches a strip-shaped cover film to the container film. The punching means punches a blister film formed by attaching a cover film to a container film to obtain a blister pack. In addition, the cover film overlaps the container film between the supply means and the seal means, and both films are intermittently conveyed to the seal means and the punching means in the same manner.

Further, in the blister packaging machine, a step of intermittently conveying the container film or cover film during one cycle (step of conveying and temporarily stopping the container film or the like), and the temporarily stopped container film or the like A process of performing processing by means of part forming means, sealing means, and punching means is performed. In addition, preheating of the container film by the preheating unit may be performed during one cycle or may be performed over a plurality of cycles.

However, various kinds of information composed of pictures (designs) or characters can be provided on the surface of the cover film of the blister pack by printing or the like. In this case, at the execution position of the sealing means or the punching means, the position of the various types of information in the cover film and the position of the pocket portion need to be matched along the transport direction of both films. This is because, if the positions do not coincide, in the finally obtained blister pack, various types of information are misaligned at appropriate positions or are partially missing.

Therefore, mark detection means (reading device) for detecting the position of the mark on the cover film attached in a certain positional relationship with the above-mentioned various information is provided, and at the same time, mark detection from the seal means or punching means along the conveyance path of the cover film The distance to the means and the distance from the sealing means or punching means along the transport path of the container film to the pocket portion forming means are the same, and according to the mark position detected by the mark detection means, the container by the conveying means A technique for adjusting the conveyance amount of the film has been proposed (for example, refer to Patent Literature 1 and the like). According to this method, for example, when it is detected that the mark position is deviated by 1 mm upstream from the reference position along the conveying direction of the cover film, the conveying amount of the container film by the conveying means is increased by 1 mm from the reference amount, At the execution position of the processing by the sealing means or the punching means, it becomes possible to match the position of the various information and the position of the pocket part.

In addition, in the above method, since the conveying amount of the container film is changed, as a result, the formation position of each pocket part along the conveying direction of the container film varies. Therefore, in Patent Document 1, a processing position adjusting means (forward and backward movement device) for moving the sealing means and punching means along the conveying direction is provided, and the sealing means and the punching means are moved to the pocket portion by the processing position adjusting means. A technique for moving the film to an appropriate position corresponding to the formation position has been proposed.

Further, as a method based on the method described in Patent Literature 1, a pocket portion position acquisition means (position detection device) for acquiring the actual formation position of the pocket portion is provided, and the pocket portion acquired by the pocket portion position acquisition means is provided. A method of moving the sealing means or the punching means based on the actual position of the part has also been proposed (for example, see Patent Document 2 and the like). Moreover, in patent document 2, the pocket part position acquiring means is arrange|positioned at the position directly upstream of the sealing means.

Japanese Special Publication No. 58-39691 Japanese Patent Publication No. 5-2401

However, when a blister pack is manufactured using the technique described in Patent Literature 2, defective formation of the pocket portion may occur at the time when the blister packaging machine starts to operate, such as during operation or immediately after a change in production variety. Regarding this point, when the inventor of this application intensively studied, it became clear that there is the following cause.

That is, at the time when the blister packaging machine starts operating, the container film in which the pocket portion is not formed is conveyed to the pocket portion position acquisition means, so that the formation position of the pocket portion cannot be acquired. Therefore, the sealing means and the punching means are not adjusted in position until the pocket part reaches the pocket part position acquiring means, and the sealing means and the punching means are not adjusted in position until the pocket part reaches the pocket part position acquiring means. . However, in some cases, there are cases in which the sealing means or the punching means must be greatly moved during the position adjustment. In this case, it takes time to move the seal means or the punching means, and it becomes impossible to complete both film attachment and blister film punching within the normal time of one cycle, so it is necessary to lengthen the time of one cycle. It happens. However, if the time of one cycle is lengthened, the preheating mode of the container film by the preheating means is different from the normal preheating mode, and as a result, excessive or insufficient softening of the container film occurs. Such a difference in the softened state of the container film causes poor formation of the pocket portion.

The present invention has been made in view of the above circumstances, and its object is to provide a blister packaging machine or the like capable of more reliably preventing formation defects of pocket portions at the time of starting operation.

Hereinafter, each means suitable for solving the above object is divided into sections and described. In addition, specific operational effects are added to the corresponding means as necessary.

Means 1. A blister packaging for manufacturing a blister pack in which a cover film is attached to the container film so as to contain the contents in a pocket portion formed on a container film and cover the pocket portion,

conveying means for intermittently conveying the belt-shaped container film;

preheating means for preheating the conveyed container film;

pocket portion forming means for forming the pocket portion with respect to the container film brought into a softened state by the preheating means;

supply means for supplying contents to the pocket part formed by the pocket part forming means;

Downstream of the supply means, the container film and the belt-shaped cover film are installed corresponding to a position where they are intermittently conveyed in an overlapped state, and the cover film is attached to the container film so as to block the opening of the pocket portion, Sealing means for obtaining a strip-shaped blister film composed of a container film and the cover film;

Downstream of the sealing means, punching means for obtaining the blister pack by punching the blister film;

mark detection means for detecting a plurality of marks of the cover film provided at intervals along the conveying direction of the cover film;

conveying amount adjusting means for adjusting the conveying amount of the container film by the conveying means based on the detection result by the mark detecting means;

Judging means for determining the presence or absence of the pocket part at a position where a processing means, which is at least one of the sealing means and the punching means, is installed, or a position downstream of the pocket part forming means and a position upstream of the processing means;

processing position adjusting means capable of moving the processing means along the transport path of the container film;

pocket portion position acquisition means for acquiring information regarding the position of the pocket portion along the transport direction of the container film, when the judging means determines that the pocket portion is present;

When it is determined by the judging unit that there is no pocket portion, the position along the conveying direction of the container film of the first pocket portion, which is the pocket portion scheduled to reach the processing means first by conveying the container film by the conveying means, first pocket part position estimating means for estimating information;

actual position use control means for controlling the processing position adjusting means so that, when it is determined by the judging means that the pocket part is present, the processing means is disposed at a position according to the information acquired by the pocket part position acquisition means;

Estimated position use control means for controlling the processing position adjusting means so that the processing means is disposed at the position according to the information estimated by the first pocket part position estimating means when it is determined by the determination means that there is no pocket part. A blister packaging machine characterized in that it is provided.

According to the above means 1, the conveyance amount of the container film can be adjusted by the conveyance amount adjusting means based on the detection result by the mark detection means. Therefore, the pocket portion can be formed at an appropriate position corresponding to the position of the mark, and in the blister pack to be manufactured, the position of the pocket portion and the position of the mark (and various information attached to the cover film) can be more reliably matched.

In addition, since the position of each pocket part along the conveying direction of the container film is varied by adjusting the conveying amount of the container film, according to the above means 1, when the judging means determines that there is a pocket part, the pocket part position acquiring means It is possible to move the processing means to a position according to the information obtained by That is, it is possible to move the processing means to an appropriate position corresponding to the actual position of the pocket part. Then, after moving the processing means to an appropriate position, processing by the processing means (attachment of the cover film to the container film or punching of the blister film) is performed, in the blister pack manufactured, the cover film It is possible to more reliably prevent various types of information attached to the information from being misaligned at appropriate positions or partially missing. As a result, the quality improvement of a blister pack can be aimed at more reliably.

On the other hand, according to the above means 1, when the pocket part has not reached the judgment position and the judgment means determines that there is no pocket part, such as when the packaging machine starts to operate, the first pocket part position estimation means acquires The processing unit can be moved to a position according to the information on the estimated position of the first pocket portion (a pocket portion that is scheduled to reach the processing unit first by conveyance of the container film). Therefore, before the information on the actual position of the first pocket part is acquired by the pocket part position acquisition means, the processing means can be moved in advance and arranged at the position estimated to match the formation position of the first pocket part as much as possible. As a result of this, as a result of the conveyance of the container film, the information on the position of the pocket portion can be acquired by the pocket portion position acquisition means, and when the step of moving the processing means based on the information is reached, the processing means is moved during one cycle. It is completed without a large movement, and as a result, it is completed without lengthening the time of one cycle. As a result, it is possible to prevent a difference in preheating behavior of the container film from occurring, and it is possible to more reliably prevent formation defects of the pocket portion at the time when the packaging machine starts to operate.

Means 2. In means 1, wherein the first pocket portion position estimating means estimates information regarding the position of the first pocket portion along the transport direction of the container film, based on a detection result by the mark detection means. The blister packaging machine described.

According to the said means 2, the information about the position of the first pocket part is estimated based on the detection result by the mark detection means. Therefore, the position of the first pocket part can be easily and precisely estimated. In addition, there is no need to provide a special means for estimating the position of the first pocket portion, and the packaging machine can be simplified and downsized, and as a result, cost reduction associated with manufacturing and management of the packaging machine can be achieved.

Means 3. The first pocket portion position estimating means estimates information about the position of the first pocket portion along the conveying direction of the container film based on the conveyance amount of the container film by the conveying means. The blister packaging machine according to means 1.

According to the above means 3, similarly to the above means 2, the position of the first pocket portion can be estimated easily and precisely, and cost reduction associated with manufacturing of the packaging machine can be achieved.

Means 4. The blister packaging machine according to any one of means 1 to 3, wherein the estimated position use control means controls the processing position adjusting means so as to divide the movement of the processing means into a plurality of cycles.

According to the said means 4, when moving a processing means based on the estimated position of the first pocket part, it completes without moving a processing means large during one cycle, and as a result, completes without prolonging the time of one cycle. In this way, it is possible to more reliably prevent occurrence of a difference in the preheating mode of the container film, and more reliably to prevent formation defects of the pocket portion.

Means 5. The judging means judges the presence or absence of the pocket part based on whether or not the pocket part formation process by the pocket part forming means has been performed on the container film having reached the judgment position. Means 1 The blister packaging machine according to any one of means 4 to 4.

According to the said means 5, the presence or absence of a pocket part can be determined, without providing the sensor etc. for detecting a pocket part. Therefore, the simplification and miniaturization of the packaging machine can be further achieved, and the cost reduction associated with the manufacture of the packaging machine can be achieved more effectively.

Means 6. The pocket portion position acquisition means acquires information regarding the position of the pocket portion along the transport direction of the container film at a position upstream from the processing means in any one of means 1 to 5. The blister packaging machine described.

When the pocket part position acquisition means acquires information on the position of the pocket part in the installation position of the processing means, the control of the processing position adjusting means by the actual position use control means (i.e., movement of the processing means), It is carried out after the pocket part reaches the processing means. Therefore, conveyance of the pocket part to the processing means, acquisition of information on the position of the pocket part by the pocket part position acquisition means, and movement of the processing means to the position according to the information are performed in this order.

On the other hand, according to the above means 6, information on the position of the pocket portion upstream of the processing means is acquired, and the actual position use control means controls the processing position adjusting means so that the processing means is disposed at a position according to the information. do. Therefore, while the pocket part is conveyed to the processing means, it becomes possible to move the processing means to an appropriate position corresponding to the position of the pocket part (i.e., carrying out the transport of the pocket part and the movement of the processing means at the same time). Thereby, the production rate (production efficiency) of the blister pack can be increased.

Means 7. A method for manufacturing a blister pack in which a cover film is attached to the container film so as to accommodate the contents in a pocket portion formed on a container film and cover the pocket portion at the same time,

A conveyance step of intermittently conveying the belt-shaped container film;

a preheating step of preheating the conveyed container film;

a pocket portion forming step of forming the pocket portion on the container film brought into a softened state by the preheating step;

a step of supplying contents to the pocket portion formed by the pocket portion forming step;

After the contents are supplied in the supplying step, the opening of the pocket portion is blocked by using a sealing unit provided at a position where the container film and the strip-shaped cover film are intermittently transported in an overlapping state, thereby sealing the container film with the contents. A sealing step of attaching the cover film to obtain a strip-shaped blister film composed of the container film and the cover film;

a punching step of punching the blister film with a punching means for punching the blister film to obtain the blister pack after mounting the cover film on the container film by the sealing step;

A mark detection step of detecting marks on the cover film provided in plurality at intervals along the conveying direction of the cover film;

a conveying amount adjusting step of adjusting the conveying amount of the container film in the conveying step based on a detection result by the mark detecting step;

A judgment step of determining the presence or absence of the pocket portion at a position where a processing means, which is at least one of the sealing means and the punching means, is installed, or a position downstream of the pocket portion forming means and a position upstream of the processing means;

a pocket portion position acquisition step of acquiring information regarding the position of the pocket portion along the transport direction of the container film, when it is determined by the determination step that the pocket portion is present;

When it is determined by the determination step that there is no pocket portion, the position of the first pocket portion, which is the pocket portion scheduled to reach the processing unit first by conveying the container film in the conveying step, along the conveying direction of the container film A first pocket position estimation step of estimating information;

Processing capable of moving the processing means along the conveyance path of the container film so that the processing means is disposed at a position according to the information obtained in the pocket part position acquisition step when it is determined by the determination step that the pocket portion is present. An actual position use control process for controlling the position adjusting means;

When it is determined by the determination process that there is no pocket part, an estimated position use control process of controlling the processing position adjusting means so that the processing means is disposed at a position according to the information estimated by the first pocket part position estimation process. A method for manufacturing a blister pack, characterized in that it comprises.

According to the above means 7, the same effect as the above means 1 is obtained.

Means 8. In means 7, in the step of estimating the position of the first pocket portion, information on the position of the first pocket portion along the conveyance direction of the container film is estimated based on a detection result by the mark detection step. A method of making the blister pack described.

According to the above means 8, the same effect as the above means 2 is obtained.

Means 9. In the first pocket portion position estimating step, based on the amount of conveyance of the container film in the conveying step, information regarding the position of the first pocket portion along the conveying direction of the container film is estimated. The method for manufacturing a blister pack according to means 7.

According to the above means 9, the same effect as the above means 3 is obtained.

Means 10. The method for manufacturing a blister pack according to any one of means 7 to 9, characterized in that, in the estimated position use control step, the processing position adjusting means is controlled so that the movement of the processing means is divided into a plurality of cycles.

According to the above means 10, the same effect as the above means 4 is obtained.

Means 11. In the judgment step, the presence or absence of the pocket portion is judged based on whether or not the pocket portion forming process by the pocket portion forming step has been performed on the container film having reached the judgment position. The method for manufacturing a blister pack according to any one of means 7 to 10.

According to the means 11, the same effect as the means 5 is obtained.

Means 12. Bliss according to any one of Means 7 to 11, characterized in that, in the pocket portion position acquisition step, positional information of the pocket portion along the transport direction of the container film is acquired at a position upstream of the processing means. A method of making a ter pack.

According to the means 12, the same effect as that of the means 6 is obtained.

1 is a perspective view of a blister pack;
2 is a cross-sectional view of a blister pack.
3 is a perspective view of a blister film.
Fig. 4 is a schematic diagram showing a schematic configuration of a blister packaging machine.
5 is a block diagram showing the electrical configuration of the control device.
6 is an explanatory diagram for explaining a state in which a mark position error occurs.
Fig. 7 is an explanatory diagram for explaining that, when a positional error occurs in a mark when the transport amount of the container film is constant, an error occurs in the relative position of the pocket portion and the mark.
8 is an explanatory diagram for explaining that the formation position of the pocket part is adjusted to the position according to the positional error of the mark.
9 is an explanatory view for explaining that the position of the pocket part and the position of the mark are matched by adjusting the formation position of the pocket part.
10 is an explanatory view for explaining the arrangement position of the sealing device and the punching device in the second cycle.
11 : is explanatory drawing for demonstrating the arrangement|positioning position of the sealing device and the punching device in the cycle in which the first pocket part reached the position directly upstream of the sealing device.
12 : is explanatory drawing for demonstrating the arrangement|positioning of the sealing device and the punching device in the cycle in which the first pocket part reached|attained the sealing device.
13 : is explanatory drawing for demonstrating the arrangement|positioning of the punching device in the cycle in which the first pocket part reached|attained the punching device.
Fig. 14 is a schematic diagram showing the arrangement position of a mark detection sensor in another embodiment.
15 is a schematic view showing the arrangement position of a mark detection sensor in another embodiment.
16 is a schematic diagram showing the arrangement position of a mark detection sensor in another embodiment.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment is described, referring drawings. First, the configuration of a blister pack manufactured by a blister packaging machine will be described.

As shown in Figs. 1 and 2, the blister pack 1 has a container film 3 having one pocket portion 2 and the container film 3 by covering the pocket portion 2. It has a cover film (4) attached. Contents 5 such as food, electronic parts, and daily necessities are accommodated in the pocket portion 2, for example. In addition, in FIG. 1 etc., the films 3 and 4 are shown thicker than actual.

The container film 3 is made of, for example, a thermoplastic resin material such as PP (polypropylene). On the other hand, the cover film 4 is formed of a thermoplastic resin compatible with the container film 3 . Alternatively, the cover film 4 may be made of a thin material having a surface coated with a sealant made of a thermoplastic resin compatible with the container film 3 .

In addition, on the surface of the cover film 4, various types of information 4a composed of pictures (designs), characters, symbols, etc. for indicating information on the content 5 are printed.

In addition, the blister pack 1 can be obtained by punching a strip-shaped blister film 6 (see Fig. 3) formed by attaching a strip-shaped container film 3 and a strip-shaped cover film 4. there is. The blister film 6 in this embodiment has a structure in which two blister packs 1 are lined up along the width direction. Moreover, the blister film 6 is equipped with the part used as a scrap between the parts finally becoming the blister pack 1 lined up along the longitudinal direction of the said blister film 6. In addition, in FIG. 3, illustration of various types of information 4a is omitted.

Subsequently, the configuration of the blister packaging machine 10 for manufacturing the blister pack 1 will be described.

As shown in FIG. 4 , the blister packaging machine 10 includes a chain clip conveyor 11 . In this embodiment, the chain clip conveyor 11 constitutes "conveyance means". The chain clip conveyor 11 is for intermittently transporting the strip-shaped container film 3 pulled out from the roll-shaped raw material downstream, and transports and pauses the container film 3 during one cycle, respectively. . The chain clip conveyor 11 has a clip portion (not shown) capable of holding the container film 3, and the container film 3 is held at both ends in the width direction by the clip portion. (3) is returned. A process of intermittently conveying the container film 3 by the chain clip conveyor 11 corresponds to a "conveyance process".

Downstream of the original fabric of the container film 3, a preheating device 12 and a pocket portion forming device 13 are installed in this order along the transport path of the container film 3. In this embodiment, the "preheating device 12" constitutes the "preheating means" and the "pocket portion forming device 13" constitutes the "pocket portion forming means".

The preheating device 12 includes a first preheating section 12a and a second preheating section 12b disposed above and below the container film 3, and at least the pocket section 2 in the container film 3. ) is configured to be capable of heating the formation scheduled portion. The process of preheating the container film 3 by the preheating device 12 corresponds to the "preheating process".

In this embodiment, the preheating range of the container film 3 along the transport direction of the container film 3 by the preheating device 12 corresponds to one blister pack 1. Therefore, during one cycle, the portions to be formed of two blister packs 1 arranged in the width direction in the container film 3 are preheated.

The pocket portion forming device 13 includes an upper frame 13a and a lower frame 13b disposed above and below the container film 3 interposed therebetween. While holding the container film 3 softened by preheating between the upper frame 13a and the lower frame 13b, a predetermined gas (an inert gas, air in this embodiment) is supplied to the container film 3. by pressing the container film 3 against the lower frame 13b (that is, by using a pressure forming method), the pocket portion 2 is formed on the container film 3. The process of forming the pocket part 2 by the pocket part forming apparatus 13 corresponds to a "pocket part forming process". Moreover, you may comprise so that the pocket part 2 may be formed by other forming methods, such as a vacuum forming method.

In this embodiment, the formation of the pocket portion 2 by the pocket portion forming device 13 is performed once during one cycle while the container film 3 is temporarily stopped. Thus, during one cycle, two pocket portions 2 aligned in the width direction of the container film 3 are formed at once.

In addition, the pocket portion forming device 13 is installed in a state in which the reference position is at a position separated by a distance Lb from a predetermined position of a sealing device 17 described later along the conveyance path of the container film 3. . The reference position of the pocket portion forming device 13 is based on the design relative positional relationship between the pocket portion 2 and the mark 4b described later in the blister film 6, and the pocket portion forming device 13 Corresponding to the pocket part 2 formed by, it means the position where the said mark 4b at the time of temporarily arranging the mark 4b which satisfies the said relative positional relationship is arrange|positioned. Further, in this embodiment, the pocket portion 2 formed by the pocket portion forming device 13 reaches the sealing device 17 after 5 cycles and the punching device 20 described later after 7 cycles, respectively.

Downstream of the pocket portion forming device 13, a supply device 14 is provided. In this embodiment, the supply device 14 constitutes a "supply means". The supply device 14, by opening a shutter (not shown) when the container film 3 is temporarily stopped, supplies the content 5 to each pocket portion 2 arranged in the width direction of the container film 3. supply in quantity. A process of supplying the contents 5 by the supply device 14 corresponds to a "supply process".

On the other hand, the original fabric of the cover film 4 formed in a belt shape is wound into a roll shape and disposed separately from the container film 3 . The cover film 4 pulled out from the original fabric is guided by a receiving roller 15 installed downstream of the supply device 14 . The cover film 4 is guided up to the receiving roller 15 so as to block the pocket portion 2 and overlap the container film 3 . The cover film 4 is intermittently transported in the same mode as the transport mode of the container film 3 .

Further, on the cover film 4, marks 4b formed in a constant positional relationship with the various types of information 4a are printed. In Fig. 4, the mark 4b is schematically shown by a black circle. A plurality of marks 4b are provided at equal intervals along the longitudinal direction of the cover film 4 . In the blister film 6 in this embodiment, the mark 4b is arranged at a predetermined position away from the pocket portion 2 by a certain amount on the upstream side by design. When the mark 4b is present at this predetermined position, the position of the pocket portion 2 along the transport direction of the container film 3 and the position of the various types of information 4a are in a state of being matched. In addition, the interval Xm of each mark 4b is basically constant, but may vary slightly. For example, the distance Xm may be different from the standard distance (design distance) by ±1 mm.

A mark detection sensor 16 is provided upstream of the receiving roller 15 along the transport path of the cover film 4 . In this embodiment, the mark detection sensor 16 constitutes "mark detection means". The mark detection sensor 16 detects the mark 4b in each cycle, and when it detects that the mark 4b has reached a predetermined position, it outputs a mark detection signal to a control device 30 described later. . In addition, the mark detection sensor 16 can detect the error amount of the position of the actual mark 4b with respect to the designed mark position in each cycle, and also controls information regarding the position error amount of the mark 4b. output to device 30. The process of detecting the mark 4b and its positional error amount by the mark detection sensor 16 corresponds to a "mark detection process".

In addition, the mark detection sensor 16 is provided at a position separated by a distance La from a predetermined position of a sealing device 17 to be described later along the conveyance path of the cover film 4 . In other words, the mark detection sensor 16, when the mark 4b arrives at a position separated by a distance La from a predetermined distance of the sealing device 17 along the conveyance direction of the cover film 4, the mark ( 4b) is configured to detect. For convenience of illustration, the distance La in FIG. 3 is larger than the actual distance La.

Also, the distance La is the same as the distance Lb. That is, the pocket portion forming device 13 and the mark detection sensor 16 are installed at positions separated by the same distance from the sealing device 17 along the conveyance path of the container film 3 and the cover film 4 . In addition, as a result, the pocket portion forming device 12 and the mark detection sensor 16 are positioned at the same distance from the punching device 20 described later along the transport path of the container film 3 or the cover film 4. It is installed in .

Downstream of the receiving roller 15, a sealing device 17 is provided. In this embodiment, the sealing device 17 constitutes "seal means". The sealing device 17 is provided with an upper seal frame 17a and a lower seal frame 17b, and the container film 3 and the cover film 4, which are temporarily suspended by both frames 17a and 17b, are held while being held together. By heating these films 3 and 4, the cover film 4 is welded (attached) to the container film 3. In this embodiment, during one cycle, both frames 17a and 17b are closed, and the films 3 and 4 are held temporarily by both frames 17a and 17b, and both films 3 and 4 are mounted. and opening both frames 17a and 17b to release the sandwiched state of both films 3 and 4 by both frames 17a and 17b. By attaching the cover film 4 to the container film 3, a strip-shaped blister film 6 in which the pocket portion 2 is filled with the content 5 is obtained. In addition, in the sealing device 17 in this embodiment, when the pocket portion 2 is not present in the portion of the container film 3 reaching the sealing device 17 (the first pocket portion position sensor 18 described later) ), it is configured to attach both films 3 and 4 even when it is determined that there is no pocket portion 2), but when there is no pocket portion 2 in the above portion, both films 3 and 4 You may configure so that mounting of is not carried out. The process of attaching the cover film 4 to the container film 3 by the sealing device 17 corresponds to the "sealing process".

Moreover, corresponding to the installation position of the sealing device 17, the 1st pocket part position sensor 18 comprised by the photoelectric sensor etc. is provided, for example. The 1st pocket part position sensor 18 determines the presence or absence of the pocket part 2 in the 1st judgment position P1 which is the position where the sealing device 17 was arrange|positioned. That is, the 1st pocket part position sensor 18 determines whether the pocket part 2 has reached|attained the sealing device 17. Judgment is performed before attachment of both films 3 and 4 by the sealing device 17 in each cycle.

Moreover, the 1st pocket part position sensor 18 determines the position of the pocket part 2 along the conveyance direction of the container film 3, when it determines that the pocket part 2 is in the 1st determination position P1. related information (in this embodiment, the existence position of the pocket portion 2 along the transport direction of the container film 3) is acquired. The determination result of the first pocket part position sensor 18 as to the presence or absence of the pocket part 2 and the information regarding the position of the pocket part 2 are output to a control device 30 described later.

Corresponding to the seal device 17, a seal position adjusting device 19 is provided. The seal position adjusting device 19 is a device for moving the sealing device 17 along the transport path of the container film 3, and the sealing device 17 is disposed at a position corresponding to the formation position of the pocket portion 2. used to do However, since the sealing device 17 has a significant weight, when both frames 17a and 17b are open during one cycle (ie, during a period in which the sealing device 17 can be moved during one cycle), The movable amount of the seal device 17 by the seal position adjusting device 19 is at most about several mm (for example, 2 mm).

Downstream of the sealing device 17, a punching device 20 for punching the blister film 6 in units of blister packs 1 is provided. The punching of the blister film 6 by the punching device 20 is performed during one cycle when the container film 3 or the like is temporarily stopped. In this embodiment, the punching device 20 is used when there is no pocket portion 2 in the portion of the blister film 6 that has reached the punching device 20 (to the second pocket portion position sensor 21 described later) Although the punching of the blister film 6 is not performed when it is determined that there is no pocket portion 2), even when the pocket portion 2 is not present at the site, the blister film 6 It may be configured so that punching is performed. In this embodiment, the punching device 20 constitutes a "punching means", and the sealing device 17 and the punching device 20 each constitute a "processing means". In addition, the process of punching the blister film 6 with the punching device 20 corresponds to a "punching process". The blister pack 1 obtained by punching the blister film 6 is conveyed by a conveyor 23 to a hopper for finished products (not shown).

Corresponding to the installation position of the punching device 20, a second pocket portion position sensor 21 made of, for example, a photoelectric sensor or the like is provided. The 2nd pocket part position sensor 21 determines the presence or absence of the pocket part 2 in the 2nd judgment position P2 which is the position where the punching device 20 is arrange|positioned in each cycle. That is, the second pocket portion position sensor 21 determines whether or not the pocket portion 2 has reached the punching device 20 in each cycle. The judgment is performed before punching by the punching device 20 in each cycle. In the present embodiment, the first judgment position P1 and the second judgment position P2 each correspond to a "judgment position".

Further, when the second pocket portion position sensor 21 determines that the pocket portion 2 is at the second judgment position P2 in each cycle, the pocket portion 2 along the conveyance direction of the container film 3 ) is obtained (in the present embodiment, the stop position of the pocket portion 2 along the transport direction of the container film 3). The determination result of the second pocket part position sensor 21 regarding the presence or absence of the pocket part 2 and information regarding the position of the pocket part 2 are output to a control device 30 described later. In this embodiment, the 1st pocket part position sensor 18 and the 2nd pocket part position sensor 21 comprise "determination means" and "pocket part position acquisition means", respectively. In addition, the process of determining the presence or absence of the pocket part 2 by the both pocket part position sensors 18 and 21 corresponds to the "determination process", and the pocket part 2 is determined by the both pocket part position sensors 18 and 21. ) corresponds to the "pocket part position acquisition step".

Also, corresponding to the punching device 20, a punching position adjusting device 22 is provided. The punching position adjusting device 22 is a device for moving the punching device 20 along the conveyance path of the container film 3, and the punching device 20 is disposed at a position suitable for the formation position of the pocket portion 2 used to do However, since the punching device 20 has a considerable weight, the punching position adjusting device ( The movable amount of the punching device 20 by 22) is at most about several mm (for example, 2 mm). In this embodiment, the seal position adjusting device 19 and the punching position adjusting device 22 each constitute "processing position adjusting means".

Downstream of the punching device 20, a cutting device (not shown) is installed, and the scrap left by punching is cut by the cutting device. The cut scrap is stored in a hopper for scrap (not shown).

In addition, the blister packaging machine 10 includes a control device 30 for controlling the operation of each device in the blister packaging machine 10 (for example, the chain clip conveyor 11, the pocket portion forming device 13, etc.) ) is provided. The control device 30 includes a CPU as an arithmetic means, a ROM for storing various programs, a RAM for temporarily storing various data, and a storage medium (for example, a hard disk) for long-term storage of information. It is made up of computer systems.

As shown in FIG. 5, the control device 30 includes a conveyance amount adjusting unit 31, a control selection unit 32, an actual position use control unit 33, and an estimated position use control unit 34. These perform various functions, respectively, and the various functions are executed using hardware constituting the control device 30 or various programs stored in the storage medium. In the present embodiment, the transport amount adjusting unit 31 constitutes "transfer amount adjusting means", the actual position use control unit 33 constitutes "actual position use control means", and the estimated position use control unit 34 constitutes "Estimated position use control means" is constituted.

The conveyance amount adjusting part 31 adjusts the conveyance amount of the container film 3 by the chain clip conveyor 11 in one cycle based on the detection result by the mark detection sensor 16. The conveying amount adjusting unit 31 starts conveying the container film 3 at a predetermined timing during one cycle and at the same time stops the chain clip conveyor temporarily at the timing when the mark detection signal is input from the mark detection sensor 16. (11) to control.

In addition, if the conveyance amount of the container film 3 during one cycle is constant, when the actual mark 4b is shifted by the distance α from the designed mark 4b (see FIG. 6, FIGS. 6-6) 9, when the mark detection sensor 16 or the like is not shown), the container film 3 and the cover film 4 are overlapped, a mark 4b is displayed for the pocket portion 2, and various information 4a ) is arranged at a position displaced by a distance α from the design position (see FIG. 7). In contrast, by adjusting the conveyance amount of the container film 3 by the conveyance amount adjusting unit 31, the pocket portion 2 corresponding to the mark 4b having a positional error is formed at a position displaced by the distance α. (See Fig. 8). As a result, the pocket portion 2 is formed at an appropriate position corresponding to the position of the mark 4b, and the position of the pocket portion 2 along the conveyance direction of the container film 3 and the mark 4b are variously The position of the information 4a is more reliably matched (see Fig. 9). A step of controlling the conveying amount of the container film 3 by controlling the chain clip conveyor 11 by the conveying amount adjusting unit 31 corresponds to a "conveying amount adjusting step".

The control selection unit 32 adjusts the position of the seal based on the determination result regarding the presence or absence of the pocket portion 2 input from both pocket portion position sensors 18 and 21 and information on the position of the pocket portion 2. It is determined which of the actual position use control unit 33 and the estimated position use control unit 34 is to perform control of the device 19 or the punching position adjusting device 22.

More specifically, the control selection unit 32 inputs a determination result that the pocket part 2 exists from the first pocket part position sensor 18 and information about the position of the pocket part 2 in an arbitrary cycle. In this case, during this cycle, the control of the seal position adjusting device 19 using the information on the position of the pocket portion 2 inputted by the actual position use control unit 33 is set to be executed. In addition, the control selection unit 32 uses the actual position when the determination result that the pocket part 2 exists from the second pocket part position sensor 21 and the information about the position of the pocket part 2 are input. It is set so that the control part 33 controls the punching position adjusting device 22 using the input information about the position of the pocket part 2.

On the other hand, the control selection unit 32 inputs the determination result that there is no pocket portion 2 from the first pocket portion position sensor 18 after the next cycle of the cycle in which the first pocket portion 2f (see FIG. 10) is formed. , that is, when the pocket portion 2 has not reached the sealing device 17 at the time when the blister packaging machine 10 starts operating, the pocket portion position estimation unit 32a determines the container film The position of the first pocket part 2f along the conveyance direction of (3) is estimated. The first pocket portion 2f refers to the pocket portion 2 that is scheduled to reach the sealing device 17 or the punching device 20 first by conveying the container film 3 by the chain clip conveyor 11 . In this embodiment, the pocket part position estimating part 32a comprises "first pocket part position estimating means".

The pocket part position estimating part 32a estimates the information about the position of the first pocket part 2f along the conveyance direction of the container film 3 based on the detection result by the mark detection sensor 16. In the present embodiment, the pocket portion position estimating unit 32a, based on the amount of positional error of the mark 4b input from the mark detection sensor 16, sets the standard position (when there is no positional error of the mark 4b). The position of the first pocket part 2f relative to the position of the first pocket part 2f of) is estimated.

For example, in the next cycle (second cycle) of the cycle in which the first pocket portion 2f was formed, when the position error amount of the input mark 4b is +1 mm (i.e., 1 mm shifted downstream from the reference position). When the mark 4b is located at the position), the conveyance amount of the container film 3 is adjusted by the conveyance amount adjusting unit 31, and the conveyance amount of the container film 3 is the normal conveyance amount in one cycle ( It becomes smaller by the distance α than the “normal transport amount per cycle”). Therefore, compared to the case where there is no positional error of the mark 4b, the first pocket portion 2f is located at a position 1 mm upstream. Therefore, in the second cycle, the pocket portion position estimation unit 32a estimates that the position of the first pocket portion 2f is a position 1 mm upstream from the reference position. Then, for example, in the next cycle, when the input position error amount of the mark 4b is +1 mm, the pocket part position estimating unit 32a calculates this position error amount and the first pocket part estimated in the previous cycle. Based on the position of (2f), it is estimated that the position of the first pocket part 2f is 2 mm upstream from the reference position. The process of estimating the information regarding the position of the first pocket part 2f by the pocket part position estimation part 32a corresponds to "the first pocket part position estimation process".

The actual position use control unit 33, when it is determined by the first pocket part position sensor 18 or the second pocket part position sensor 21 that the pocket part 2 exists, these pocket part position sensors 18, 21 ) The seal position adjusting device 19 or the punching position adjusting device 22 is set so that the sealing device 17 or the punching device 20 is disposed at a position according to the information about the position of the pocket portion 2 acquired by Control.

More specifically, the actual position use control unit 33 operates as follows for the seal position adjusting device 19 . That is, in any cycle, when the result of determination that the pocket part 2 exists is input to the control device 30 from the first pocket part position sensor 18, the actual position use control part 33 performs a seal during the same cycle. Before both films 3 and 4 are mounted by the device 17, the sealing device 17 is disposed at a position matching the stop position of the pocket portion 2 inputted from the first pocket portion position sensor 18 to seal the seal device 17. Controls the positioning device 19. By this, for example, when the stop position of the pocket part 2 inputted from the 1st pocket part position sensor 18 is a position 1 mm downstream from the reference position (initial position on the design of the sealing device 17) , The sealing device 17 is disposed at a position 1 mm downstream from the standard position.

In addition, the actual position use control unit 33 operates as follows with respect to the punching position adjusting device 22 as a target. That is, in any cycle, when the determination result that the pocket part 2 exists is input from the second pocket part position sensor 21 to the control device 30, the actual position use control part 33 performs punching during the same cycle. Prior to punching of the blister film 6 by the device 20, the punching position such that the punching device 20 is disposed at a position matching the stop position of the pocket part 2 input from the second pocket part position sensor 21 Controls the regulating device 22. The process of controlling the position adjusting devices 19 and 22 so that the sealing device 17 and the punching device 20 are disposed at positions according to the information acquired by the pocket portion position sensors 18 and 21 is "actually position use control process”.

The estimated position use control unit 34 determines, by the first pocket part position sensor 18 or the second pocket part position sensor 21, that there is no pocket part 2, to the pocket part position estimating part 32a. The seal position adjusting device 19 or the punching position adjusting device 22 is controlled so that the sealing device 17 or the punching device 20 is disposed at a position according to the information estimated by the above.

More specifically, the estimated position use control unit 34 operates as follows for the seal position adjusting device 19 . That is, if the determination result that there is no pocket part 2 is input from the first pocket part position sensor 18 in any cycle (however, after the cycle following the cycle in which the first pocket part 2f is formed), during the same cycle Before attaching both films 3 and 4 by the sealing device 17, the seal position adjusting device 19 is controlled so that the sealing device 17 is disposed at a position according to the estimated position of the first pocket portion 2f. .

In addition, the estimated position use control unit 34 operates as follows with respect to the punching position adjusting device 22 as a target. That is, in an arbitrary cycle (however, after the cycle following the cycle in which the first pocket portion 2f is formed), if a determination result that there is no pocket portion 2 is input from the second pocket portion position sensor 21, the first pocket portion 2 is not present. The punching position adjusting device 22 is controlled so that the punching device 20 is disposed at a position according to the estimated position of the unit 2f. The process of controlling the position adjusting devices 19 and 22 so that the sealing device 17 or the punching device 20 is disposed at the position according to the information estimated by the pocket portion position estimating unit 32a is "using the estimated position" control process”.

In this embodiment, for example, in the cycle (second cycle) following the cycle in which the first pocket portion 2f was formed, when the estimated position of the first pocket portion 2f is 1 mm upstream from the reference position, the seal Device 17 or punching device 20 is disposed at a position 1 mm upstream from the reference position. Further, in the next cycle (the third cycle), when the estimated position of the first pocket portion 2f is 2 mm upstream from the reference position, in that cycle, the sealing device 17 and the like are located at a position further 1 mm upstream. are placed

Thus, the estimated position use control unit 34 in the present embodiment operates the sealing device 17 and the punching device 20 for each cycle based on the estimated position of the first pocket portion 2f estimated in each cycle. The seal position adjusting device 19 and the punching position adjusting device 22 are controlled so as to move. That is, the estimated position use control unit 34 controls the seal position adjusting device 19 and the punching position adjusting device 22 so that the movement of the sealing device 17 or the punching device 20 is divided into a plurality of cycles.

The above-described blister packaging machine 10 operates as follows when starting to operate. That is, since the pocket portion 2 does not reach the sealing device 17 or the punching device 20 at the beginning of operation, the position error of the mark 4b detected by the mark detection sensor 16 Based on the vehicle, the position of the first pocket portion 2f is estimated by the pocket portion position estimating portion 32a. Then, each of the position adjusting devices 19 and 22 is controlled by the estimated position use control unit 34, so that the sealing device 17 and the punching device 20 are positioned according to the position of the estimated first pocket portion 2f. are placed

For example, it is assumed that the interval Xm of all the marks 4b is longer than the designed interval by the distance α (for example, 1 mm). In this case, as shown in FIG. 10 , in the next cycle (second cycle) of the cycle in which the first pocket portion 2f is formed, the container film 3 has a distance (α) greater than the “normal conveyance amount per cycle”. ), it is estimated that the first pocket part 2f is located downstream from the standard position by the distance α. Therefore, the sealing device 17 and the punching device 20 are disposed downstream by a distance α from the reference position (designated initial position).

Then, in the cycle in which the pocket portion 2 does not reach the judgment positions P1 and P2, the positional adjustment of the sealing device 17 and the punching device 20 as described above is performed in each cycle. As a result, as shown in FIG. 11, in the cycle (5th cycle) in which the first pocket portion 2f reaches the position directly upstream of the sealing device 17, the first pocket portion 2f is a distance from the reference position. Since it is estimated that it is located on the downstream side by (α × 4), the sealing device 17 and the punching device 20 are placed in a state where they are disposed on the downstream side by a distance (α × 4) from the reference position.

Subsequently, when the cycle (6th cycle) in which the first pocket portion 2f reaches the first judgment position P1, the control of the seal position adjusting device 19 is performed by the actual position use control unit 33 On the other hand, since the first pocket portion 2f has not yet reached the second judgment position P2, the estimated position use control portion 34 controls the punching position adjusting device 22. Therefore, as shown in FIG. 12, in this cycle, the sealing device 17 is a distance corresponding to the amount of positional error of the first pocket part 2f detected by the first pocket part position sensor 18 ( β), resulting in a state of being disposed downstream by a distance (α×4±β) from the reference position. Further, in the subsequent cycle, the placement position of the sealing device 17 is adjusted based on the information about the position of the pocket part 2 detected by the first pocket part position sensor 18. On the other hand, based on the estimated position of the first pocket portion 2f, the punching device 20 is in a state of being disposed downstream from the reference position by a distance (α×5).

Then, when the first pocket portion 2f reaches the second judgment position P2 (8th cycle), the actual position use control unit 33 controls the position of the punching position adjusting device 22. . Therefore, as shown in Fig. 13, in this cycle, the punching device 20 is a distance corresponding to the position error amount of the first pocket portion 2f detected by the second pocket portion position sensor 21 It moves by (γ), resulting in a state of being disposed downstream by a distance (α×6±γ) from the reference position. Further, in the subsequent cycle, the position of the punching device 20 is adjusted based on the information about the position of the pocket part 2 detected by the second pocket part position sensor 21.

As described above, according to the present embodiment, the conveyance amount of the container film 3 can be adjusted by the conveyance amount adjusting unit 31 based on the detection result by the mark detection sensor 16 . Therefore, it is possible to form the pocket portion 2 at an appropriate position corresponding to the position of the mark 4b, and in the blister pack 1 to be manufactured, the position of the pocket portion 2 and the mark 4b (in the future The positions of various kinds of information 4a) can be matched more reliably.

In addition, since the position of each pocket part 2 along the conveying direction of the container film 3 is varied by adjusting the conveying amount of the container film 3, in this embodiment, the pocket part position sensors 18, 21 When it is determined that the pocket portion 2 exists, the sealing device 17 or the punching device 20 can be moved to an appropriate position corresponding to the actual position of the pocket portion 2. Then, after moving the sealing device 17 or the like to an appropriate position, processing by the sealing device 17 or the like is performed, and in the manufactured blister pack 1, various pieces of information 4a are stored at an appropriate position. It is possible to more reliably prevent misalignment or partial lack. As a result, the quality improvement of the blister pack 1 can be aimed at more reliably.

On the other hand, as the timing at which the blister packaging machine 10 starts operating, the pocket portion 2 does not reach the judgment positions P1 and P2, and the pocket portion 2 is moved by the pocket portion position sensors 18 and 21. When it is determined that there is not, the sealing device 17 etc. can be moved to the position according to the information regarding the estimated position of the first pocket part 2f acquired by the pocket part position estimation part 32a. Therefore, before the information on the actual position of the pocket part 2 is acquired by the pocket part position sensors 18 and 21, the sealing device 17, etc. can be moved and placed in advance. Therefore, as a result of the progress of conveyance of the container film 3, information on the position of the pocket portion 2 can be obtained by the pocket portion position sensors 18 and 21, and the sealing device 17 and the like are obtained based on the information. When the step of moving the is completed without significantly moving the sealing device 17 or the like during one cycle (the cycle in which the first pocket portion 2f reaches the judgment positions P1 and P2), as a result, one cycle is completed without lengthening the time of For example, in the examples shown in Figs. 10 to 13, if the position adjustment of the sealing device 17 or the like is performed for the first time in a cycle in which the information on the actual position of the pocket portion 2 can be obtained, this cycle The movement distance of the sealing device 17 or the like in the baby face is a distance (α × 4 ± β) or a distance (α × 6 ± γ), but in the above embodiment, the sealing device 17 or the like is moved at a distance ( It is completed when it moves by β) or distance γ, and it is completed without lengthening the time of one cycle. Therefore, it is possible to prevent the occurrence of a difference in the preheating behavior of the container film 3, and more reliably prevent the formation defect of the pocket portion 2 at the time when the blister packaging machine 10 starts to operate. there is.

Further, based on the detection result by the mark detection sensor 16, information regarding the position of the first pocket portion 2f is estimated. Therefore, the position of the first pocket part 2f can be estimated easily and precisely. In addition, there is no need to provide a special means for estimating the position of the first pocket portion 2f, and the blister packaging machine 10 can be simplified and downsized. As a result, the blister packaging machine 10 can be manufactured and Management costs can be reduced.

In addition, the estimated position use control unit 34 controls each position adjusting device 19, 22 so that the movement of the seal device 17 or the like is divided into a plurality of cycles. Therefore, when moving the sealing device 17 or the like based on the estimated position of the first pocket portion 2f, it is completed without moving the sealing device 17 or the like greatly during one cycle, resulting in a long time for one cycle. done without As a result, it is possible to more reliably prevent occurrence of a difference in the preheating mode of the container film 3, and more reliably to prevent formation defects of the pocket portion 2.

In addition, it is not limited to the description of the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modified examples not exemplified below are naturally possible.

(a) In the above embodiment, the mark detection sensor 16 is installed at a position where the distance La to the sealing device 17 becomes equal to the distance Lb, but the mark detection sensor 16 is installed You may change the position appropriately. For example, as shown in FIG. 14, the mark detection sensor 16 is installed at a position away from the sealing device 17 by a distance Lb plus a distance k less than the mark interval Xm. can also In this case, during one cycle, the moving mark 4b is detected by the mark detection sensor 16, and the cover film 4 is removed at a stage conveyed by the distance k after the mark 4b is detected. It may be configured to pause. In this case, for example, as shown in FIG. 15 , the positional error amount s of the moving mark 4b relative to the reference position at a predetermined timing by the mark detection sensor 16 ) is detected, and the cover film 4 may be configured to be temporarily stopped at a stage conveyed by a length corresponding to the distance k and the positional error amount s after detecting the mark 4b.

Moreover, as shown in FIG. 16, for example, you may install the mark detection sensor 16 in the position away from the sealing device 17 by the distance Lb and the distance|interval Xm of design added together. In this case, the amount of positional error of the mark 4b relative to its reference position is detected by the mark detection sensor 16, and the position separated from the sealing device 17 by the distance Lb using the detected amount of positional error. At the stage at which the mark 4b has reached, the cover film 4 may be temporarily stopped.

Moreover, you may set the installation position of the pocket part forming apparatus 13 and the mark detection sensor 16 so that Lb=La±os may be satisfied. The offset amount os is the positional relationship between the frames 13a and 13b constituting the pocket portion forming device 13 and the reference position of the pocket portion forming device 13, and various types of information 4a and the mark 4b. ) is determined based on the positional relationship of

(b) In the above embodiment, each pocket portion position sensor 18, 21 is information about the position of the pocket portion 2, and the pocket portion 2 stops along the transport direction of the container film 3. It is configured to acquire information about location. In contrast, each pocket portion position sensor 18, 21 may acquire information regarding the amount of positional error of the pocket portion 2 along the transport direction of the container film 3 with respect to a preset reference position. . In this case, the actual position use control unit 33 may control the respective position adjusting devices 19 and 22 so that the sealing device 17 and the punching device 20 are disposed at the position where the positional error amount becomes zero. do.

(c) In the above embodiment, the first judgment position P1 is set at the position where the sealing device 17 is installed, and the second judgment position P2 is set at the position where the punching device 20 is installed. there is. In contrast, the first judgment position P1 may be set downstream from the pocket portion forming device 13 and upstream from the sealing device 17, and the second judgment position P2 may be set to the pocket portion forming device 13. ), and may be positioned upstream of the punching device 20. Therefore, for example, you may configure so that judgment positions P1 and P2 may become the position away from the sealing apparatus 17 or the punching apparatus 20 by less than "amount of 1-cycle normal conveyance" to the upstream side. In this structure, each pocket part position sensor 18, 21 may acquire information about the position of the moving pocket part 2 in predetermined timing. In this case, the actual position use control unit 33, based on the acquired information and the conveyance amount of the container film 3 in the cycle for obtaining the information, to the sealing device 17 or the punching device 20 It may operate so that the position of the pocket part 2 at the time of a stop is predicted, and the sealing device 17 and the punching device 20 are arrange|positioned at this predicted position.

In addition, you may configure so that it may become a position away from the sealing apparatus 17 or the punching apparatus 20 to the upstream side by "1 cycle normal conveyance amount" for example, judgment position P1, P2. In this structure, the 1st pocket part position sensor 18 and the 2nd pocket part position sensor 21 may acquire information about the position of the temporarily stopped pocket part 2. In this case, based on the acquired information and the transport amount of the container film 3 in the next cycle, the actual position use control unit 33 determines the pocket when the sealing device 17 or the punching device 20 stops. It may operate so that the position of the part 2 is predicted, and the sealing device 17 and the punching device 20 are arrange|positioned at this predicted position.

Further, by setting the determination positions P1 and P2 upstream of the sealing device 17 and the punching device 20, while the pocket portion 2 is conveyed to the sealing device 17 and the like, the sealing device 17 and the like It becomes possible to move to an appropriate position matching the position of the pocket part 2 (that is, carrying out the transport of the pocket part 2 and the movement of the sealing device 17 or the like at the same time). Thereby, the production rate (production efficiency) of the blister pack 1 can be increased.

(d) In the above embodiment, the preheating range of the container film 3 along the transport direction of the container film 3 corresponds to one blister pack 1, but two or more bliss It may be equivalent to the data pack 1. Further, preheating of a portion to be formed corresponding to one blister pack 1 of the container film 3 along the conveying direction of the container film 3 may be performed over a plurality of cycles. Further, preheating may be performed in stages so that the portion to be formed gradually becomes high in temperature.

In addition, according to the preheating mode by the preheating device 12, the conveyance amount of the container film 3 or the like during one cycle, the number of pockets 2 formed, and the blister pack 1 obtained by punching You may change the number etc. suitably.

(e) In the above embodiment, the pocket portion position sensors 18 and 21 include "determination means" for determining the presence or absence of the pocket portion 2 at the judgment positions P1 and P2, and the judgment position ( The positions P1 and P2) also serve as "pocket position acquisition means" for acquiring information on the position of the pocket part 2, but "determination means" and "pocket part position acquisition means" may be provided separately. In this case, based on whether or not the pocket portion 2 formation process by the pocket portion forming device 13 has been performed on the container film 3 that has reached the judgment positions P1 and P2 as the judgment means, You may use what determines the presence or absence of the pocket part 2. By using such determination means, the presence or absence of the pocket portion 2 can be determined without providing a sensor or the like for detecting the pocket portion 2. Therefore, the simplification or downsizing of the blister packaging machine 10 can be achieved, and the cost reduction associated with manufacturing the blister packaging machine 10 can be more effectively achieved.

In addition, the above determination means can be constituted by the control device 30, for example. That is, while attaching a number to the portion to be formed of the pocket portion 2 in the container film 3 to the control device 30, a signal input from the pocket portion forming device 13 (for example, , a signal indicating that the pocket portion 2 has been formed), a function of creating and preserving the number of the portion to be formed and data related to the formation/non-formation of the pocket portion 2 for the portion to be formed. install In addition, with respect to the control device 30, the presence or absence of the pocket portion 2 at the judgment position P1, P2 is determined by combining the number of the portion to be formed that has reached the judgment position P1, P2 and the above data. Install a function that determines With the control device 30 equipped with these functions, the above determination means can be constituted.

(f) In the above embodiment, the movement of the sealing device 17 or the punching device 20 is performed every cycle as long as the execution conditions of the control by the estimated position use control unit 34 are satisfied. In contrast, the estimated position use controller 34 may be configured to move the sealing device 17 or the punching device 20 at intervals of one or several cycles. Further, the estimated position use control unit 34 may be constituted so as to start the movement of the seal device 17 or the like in a cycle in which the first pocket 2f reaches the predetermined position. Moreover, you may comprise the estimated position use control part 34 so that the sealing device 17 etc. may be moved only in the cycle in which the first pocket part 2f reached a predetermined position. However, it is preferable that the amount of movement of the sealing device 17 and the punching device 20 during one cycle is at most about several mm (for example, 2 mm) as in the above embodiment.

(g) In the above embodiment, the pocket portion position estimating unit 32a determines the position of the first pocket portion 2f along the transport direction of the container film 3 based on the detection result by the mark detection sensor 16. Although it is configured to estimate positional information, it may be configured to estimate the information based on the conveyance amount of the container film 3 by the chain clip conveyor 11 . For example, the average conveyance amount of the container film 3 in one cycle (for example, the average conveyance amount when actually manufacturing the blister pack 1 using the films 3 and 4 of the same type) may be obtained in advance, and the position of the first pocket portion 2f may be estimated based on this average conveyance amount. Also in this configuration, the position of the first pocket portion 2f can be easily and accurately estimated, and cost reduction associated with manufacturing of the blister packaging machine 10 and the like can be achieved.

Further, while measuring or inputting the distance Xm between the marks 4b, the position of the first pocket portion 2f may be estimated based on a value calculated based on the distance Xm.

(h) In the above embodiment, both the sealing device 17 and the punching device 20 constitute the "processing means", but only one of the sealing device 17 and the punching device 20 is the "processing means" may be configured. That is, you may apply the technical thought of this invention only to either one of the sealing device 17 and the punching device 20. In this case, the sealing device 17 or the punching device 20 on the side to which the technical idea of the present invention is not applied matches the movement of the sealing device 17 or the punching device 20 to which the technical idea is applied. It could be moving.

(i) In the above embodiment, the blister pack 1 has one pocket portion 2, but the number of pocket portions 2 provided in the blister pack 1 is the same as in the above embodiment. It is not limited at all, and a blister pack 1 composed of various numbers of pocket portions 2 can be employed. That is, you may apply the technical idea of this invention to manufacture of the blister pack which has the some pocket part 2. Of course, the shape of the pocket portion 2 can also be appropriately changed.

Further, in the above embodiment, the blister film 6 has a structure provided with a plurality of pocket portions 2 along the width direction, but is not limited to this, and one pocket portion along the width direction A structure provided only with (2) may be sufficient.

1 : Blister Pack
2: pocket part
3: container film
4: cover film
5: contents
10: Blister packaging machine
11: chain clip conveyor (transportation means)
12: preheating device (preheating means)
13: pocket portion forming device (pocket portion forming means)
14: supply device (supply means)
16: mark detection sensor (mark detection means)
17: sealing device (seal means, processing means)
18: 1st pocket part position sensor (determination means, pocket part position acquisition means)
19: seal position adjusting device (processing position adjusting means)
20: punching device (punching means, processing means)
21: 2nd pocket part position sensor (determination means, pocket part position acquisition means)
22: punching position adjusting device (processing position adjusting means)
31: conveyance amount control unit (conveyance amount control means)
32a: pocket part position estimating unit (first pocket part position estimating means)
33: real location use control unit (actual location use control means)
34: Estimated location use control unit (estimated location use control means)

Claims (12)

A blister packaging machine for manufacturing a blister pack in which a cover film is attached to the container film so as to contain the contents in a pocket portion formed on a container film and cover the pocket portion at the same time,
conveying means for intermittently conveying the belt-shaped container film;
preheating means for preheating the conveyed container film;
pocket portion forming means for forming the pocket portion on the container film softened by the preheating means;
Supply means for supplying contents to the pocket portion formed by the pocket portion forming means;
Downstream of the supply means, the container film and the belt-shaped cover film are installed corresponding to a position where they are intermittently conveyed in an overlapped state, and the cover film is attached to the container film so as to block the opening of the pocket portion, A sealing means for obtaining a strip-shaped blister film composed of a container film and the cover film;
Downstream of the sealing means, punching means for obtaining the blister pack by punching the blister film;
mark detecting means for detecting marks on the cover film provided in plurality at intervals along the transport direction of the cover film;
conveying amount adjusting means for adjusting the conveying amount of the container film by the conveying means based on the detection result by the mark detecting means;
Judgment means for determining the presence or absence of the pocket part at a position where a processing means, which is at least one of the sealing means and the punching means, is installed, or a position downstream of the pocket part forming means and a position upstream of the processing means;
processing position adjusting means capable of moving the processing means along the transport path of the container film;
pocket part position acquisition means for acquiring information on the position of the pocket part along the conveying direction of the container film, when it is determined by the judging means that the pocket part is present;
When it is determined by the judging unit that there is no pocket portion, the position along the conveying direction of the container film of the first pocket portion, which is the pocket portion scheduled to reach the processing means first by conveying the container film by the conveying means, first pocket portion position estimation means for estimating information;
actual position use control means for controlling the processing position adjusting means so that, when it is determined by the judging means that the pocket part is present, the processing means is disposed at a position according to the information acquired by the pocket part position acquiring means; and
and an estimated position use control means for controlling the processing position adjusting means so that the processing means is disposed at a position according to the information estimated by the first pocket part position estimating means when it is determined by the determination means that there is no pocket part. Blister packaging machine, characterized in that for doing. According to claim 1,
The blister packaging machine according to claim 1 , wherein the first pocket portion position estimating unit estimates information regarding the position of the first pocket portion along the transport direction of the container film, based on a detection result by the mark detection unit. According to claim 1,
Blister packaging machine, characterized in that the first pocket portion position estimating unit estimates information about the position of the first pocket portion along the conveying direction of the container film based on the amount of conveyance of the container film by the conveying means. . According to claim 1,
The blister packing machine according to claim 1, wherein the estimated position use control means controls the processing position adjusting means so that the movement of the processing means is divided into a plurality of cycles. According to claim 1,
blister characterized in that the judging means judges the presence or absence of the pocket part based on whether or not the pocket part formation process by the pocket part forming means has been performed on the container film that has reached the judgment position. packing machine. According to any one of claims 1 to 5,
The blister packaging machine according to claim 1, wherein the pocket portion position acquiring means acquires information regarding the position of the pocket portion along the transport direction of the container film at a position upstream of the processing means. A method for manufacturing a blister pack in which a cover film is attached to the container film so as to contain contents in a pocket portion formed on a container film and cover the pocket portion at the same time,
a conveying step of intermittently conveying the belt-shaped container film;
a preheating step of preheating the conveyed container film;
a pocket portion forming step of forming the pocket portion using a pocket portion forming means for the container film brought into a softened state by the preheating step;
A supply step of supplying contents to the pocket portion formed by the pocket portion forming step;
After the contents are supplied in the supplying step, the opening of the pocket portion is blocked by using a sealing unit provided at a position where the container film and the strip-shaped cover film are intermittently transported in an overlapping state, thereby sealing the container film with the contents. A sealing step of obtaining a strip-shaped blister film composed of the container film and the cover film by attaching the cover film;
a punching step of punching the blister film by a punching means for punching the blister film to obtain the blister pack after attaching the cover film to the container film by the sealing step;
a mark detection step of detecting marks of a plurality of cover films provided at intervals along the transport direction of the cover film;
a conveying amount adjusting step of adjusting the conveying amount of the container film in the conveying step based on a detection result by the mark detecting step;
A judgment step of determining the presence or absence of the pocket portion at a position where a processing means, which is at least one of the sealing means and the punching means, is installed, or a position downstream of the pocket portion forming means and a position upstream of the processing means;
a pocket portion position acquisition step of acquiring information regarding the position of the pocket portion along the transport direction of the container film, when it is determined by the determination step that the pocket portion is present;
When it is determined by the determination step that there is no pocket portion, the position of the first pocket portion, which is the pocket portion scheduled to reach the processing unit first by conveying the container film in the conveying step, along the conveying direction of the container film First pocket position estimation process for estimating information;
Processing capable of moving the processing means along the conveyance path of the container film so that the processing means is disposed at a position according to the information obtained in the pocket part position acquisition step when it is determined by the determination step that the pocket portion is present. A real position use control process for controlling the position adjusting means, and
When it is determined by the determination process that there is no pocket part, an estimated position use control process of controlling the processing position adjusting means so that the processing means is disposed at a position according to the information estimated by the first pocket part position estimation process. A method for manufacturing a blister pack, characterized in that it comprises. According to claim 7,
wherein, in the first pocket portion position estimation step, based on a detection result in the mark detection step, information regarding the position of the first pocket portion along the conveying direction of the container film is estimated. . According to claim 7,
Blister pack characterized in that, in the step of estimating the position of the first pocket portion, based on the amount of conveyance of the container film in the conveying step, information on the position of the first pocket part along the conveying direction of the container film is estimated. manufacturing method. According to claim 7,
In the step of controlling the use of the estimated position, the processing position adjusting means is controlled so that the movement of the processing means is divided into a plurality of cycles. According to claim 7,
In the judgment step, the presence or absence of the pocket portion is judged based on whether or not the pocket portion forming process by the pocket portion forming step has been performed on the container film that has reached the judgment position. How to make a pack. According to any one of claims 7 to 11,
The method for manufacturing a blister pack, characterized in that, in the pocket portion position acquisition step, information regarding the position of the pocket portion along the transport direction of the container film at a position upstream of the processing means is acquired.

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