JP2008162620A - Blister packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blister packaging machine for obtaining an easily openable blister pack. <P>SOLUTION: This blister packaging machine 10 for obtaining a blister pack 1 is equipped with a pocket part forming means 12 which forms a pocket part 2 and a functional recessed part 8 arranged in the transfer direction of a container film 3 intermittently transferred, a filling means 13 for filling a work 5 in the pocket part 2, a sealing means 14 which is provided with a push-in protrusion 51 for pushing a cover film 4 into the recessed part 8 and which takes the films 3 and 4 to attach to the peripheral edge of the pocket part 2 when the protrusion 51 is pushing in and a cutting means 15 which cuts the container film 3 where the cover film 4 is attached in its width direction at least at a non-adhered position between the recessed part 8 and the pocket part 2 in a condition where the film 4 is pushed in the recessed part 8. The end part of the cover film 4 sticks out of the container film 3 at least on one side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a blister packaging machine.

  Generally, a blister packaging machine is used when manufacturing a blister pack (blister sheet). On the most upstream side of the blister packaging machine, a strip-shaped container film is wound in a roll shape. The packaging film wound in the form of a roll is conveyed toward the downstream side, and along the conveyance path of the container film, the pocket forming means, the filling means, the sealing means, the punching / cutting Means are arranged in sequence. In the pocket portion forming means, a pocket portion for accommodating an object to be filled (work) is formed on the container film. In the subsequent filling means, the work is put into the pocket portion and filled. Further, in the sealing means, the cover film is attached so as to close the pocket portion. In the punching / cutting means, the blister pack as the final product is cut off by punching or cutting.

  Now, the blister pack formed as described above can take out the work by peeling the cover film from the container film. For this reason, generally, at the end part of the blister pack, the container film and the cover film are not sealed (adhered), and the end parts of both films can be picked up over the end part of the cover film. Yes.

  However, when the edge of the container film and the edge of the cover film are in close contact with each other, it is difficult to pick up and pick the cover film even though the gap between the two films is not sealed. There is a fear.

On the other hand, there is a technique in which the edge of the container film protrudes outward at the end of the unsealed blister pack, and the gap between the container film and the cover film is widened as it approaches the edge. (For example, refer to Patent Document 1).
JP-A-2-139373

  By adopting the technique of Patent Document 1, the end of the container film can be easily picked compared to the case where the edges of the container film and the cover film are in close contact with each other.

  However, in the technique described in Patent Document 1, the end portion of the container film is separated from the cover film due to molding distortion (deformation over time) of the convex portion and the concave portion formed at the end portion of the container film. In addition, there is a possibility that variations occur in the degree of opening between the end of the container film and the cover film. For this reason, in some cases, the degree of separation between the two becomes insufficient, and thus there is a possibility that it is difficult to peel off the cover film. Moreover, in the said technique, since it becomes the structure by which the tab by the side of a container film is picked, it is difficult to perform a peeling operation | work and there exists a possibility that an opening operation | work may become troublesome.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a blister packaging machine capable of obtaining a blister pack that can be easily opened.

  In the following, each means suitable for solving the above-mentioned purpose will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. Pocket portion forming means for forming a pocket portion for a strip-shaped container film that is intermittently transferred;
Filling means for filling the pocket portion with a workpiece;
Sealing means for attaching a cover film to the container film so as to close the pocket portion filled with a workpiece;
A blister packaging machine comprising a punching / cutting means capable of separating the container film to which the cover film is attached by punching or cutting,
A functional recess forming means for forming a functional recess that is recessed on the same side as the pocket portion at a position adjacent to or close to the pocket portion in the transfer direction of the container film;
Pressing means for pressing the cover film into the functional recess,
The sealing means is formed with a non-attachment site where the container film and the cover film are not attached in a predetermined region including at least the functional recess when the pressing means presses the cover film into the functional recess. So as to attach the container film and the cover film at least corresponding to the peripheral edge of the pocket portion,
The punching / cutting means cuts the cover film and the container film along the width direction at least in the functional recess or in a non-attached portion in the vicinity thereof in a state where the cover film is pushed into the functional recess. It is a structure to separate,
A blister wrapping machine configured to obtain a blister pack in which an end of the cover film protrudes outward from the container film at least on one side.

  In the blister pack obtained by the blister packaging machine described in means 1, the end of the cover film protrudes outside the container film at least on one side. Therefore, in the said one side part, a finger | toe can be made to contact | abut with respect to the surface at the side of a container film among cover films, and it is easy to pick up and cover a cover film. In this way, by projecting the end of the cover film outward from the container film, for example, a configuration in which a container film that is harder and thicker than the cover film projects outward from the cover film, or a container Compared to a configuration in which the edges of the film and the cover film are aligned, the cover film can be rolled up and peeled off from the container film relatively easily. Of course, it is not necessary to make the gap between the container film and the cover film wide at the end of the blister pack. From these things, the blister pack which is easy to open can be obtained stably.

  Further, according to this means, in a state where the cover film is pushed into the functional recess, both films are attached corresponding to at least the peripheral edge of the pocket portion in a range excluding a predetermined region including at least the functional recess. . Further, the cover film and the container film are separated along the width direction at the functional recess or the non-attachment portion in the vicinity thereof. And the end part of a cover film will protrude outside a container film because the cover film pushed into the functional recessed part comes out of a functional recessed part. Therefore, a blister pack that exhibits the above-described effects can be obtained with certainty.

  The pocket portion forming means may include an upper die and a lower die, and the pocket portion and the functional recess may be simultaneously formed by relatively moving the upper die and the lower die in the contact direction. In this case, the pocket portion forming means also serves as the functional recess forming means. In addition, when such a configuration is adopted, a process for forming a separate functional recess is not required, so that it is possible to improve manufacturing workability and reduce costs.

  Mean 2. A predetermined amount feeding means for feeding the belt-shaped cover film toward the sealing means by a predetermined amount; and a buffer mechanism capable of storing the predetermined amount of the cover film fed by the predetermined amount feeding means. The blister packaging machine according to means 1 characterized by the above.

  According to the means 2, since it is not necessary to synchronize the transfer of the container film and the transfer (feeding) of the cover film by providing the buffer mechanism, the feed control of each film can be made relatively easy. .

Means 3. Pocket portion forming means for forming a pocket portion for a strip-shaped container film that is intermittently transferred;
Filling means for filling the pocket portion with a workpiece;
Sealing means for attaching a cover film to the container film so as to close the pocket portion filled with a workpiece;
A blister packaging machine comprising a punching / cutting means capable of separating the container film to which the cover film is attached by punching or cutting,
A functional recess forming means for forming a functional recess that is recessed on the same side as the pocket portion at a position adjacent to or close to the pocket portion in the transfer direction of the container film;
Pressing means for pressing the cover film into the functional recess,
The sealing means is formed with a non-attachment site where the container film and the cover film are not attached in a predetermined region including at least the functional recess when the pressing means presses the cover film into the functional recess. So as to attach the container film and the cover film at least corresponding to the peripheral edge of the pocket portion,
The punching / cutting means cuts the cover film and the container film along the width direction at least in the functional recess or in a non-attached portion in the vicinity thereof in a state where the cover film is pushed into the functional recess. It is a structure to separate,
At least one side portion is configured so that an end portion of the cover film protrudes outward from the container film, and a blister pack is obtained.
A feeding means capable of feeding the belt-shaped cover film toward the sealing means;
A constant feeding means for stopping driving of the feeding means when a certain amount of the cover film is fed by the feeding means;
A buffer mechanism capable of storing the cover film fed by the feeding means between the feeding means and the sealing means;
The cover film stored in the buffer mechanism is pulled out with the transfer of the container film,
The blister packaging machine, wherein the pushing means pushes the cover film into the functional recess, whereby all the remaining cover film stored in the buffer mechanism is pulled out.

  According to the means 3, basically the same operational effects as the means 1 are obtained. Furthermore, the same effect as the said means 2 is show | played by providing a buffer mechanism.

  In general, the surface of the cover film is printed with identification information indicating the product name, production date, and the like of the workpiece. For this reason, there are cases where it is necessary to feed the container film and the cover film at a constant pitch so that the identification information and the like printed on the cover film do not shift relative to the pocket portion of the container film. In this respect, according to the present means 3, since the constant feeding means is provided, the cover film can be fed out by a certain amount corresponding to the printing range of the identification information or the like. However, the pocket portion of the container film and the cover film may slightly shift in the longitudinal direction due to various factors. For example, a part of the identification information that should be written on the blister pack is missing and cannot be read. There is a risk of causing such a situation.

  On the other hand, according to the present means 3, the cover film stored in the buffer mechanism remains somewhat even after being pulled out with the transfer of the container film, and the remaining cover film is The cover film is all pulled out by being pushed into the functional recess by the pushing means. In other words, the pushing means pushes the cover film into the functional recess until all the remaining cover film stored in the buffer mechanism is pulled out. Note that even if the constant feed means is provided as described above, there is a concern that the actual feed amount of the cover film may be deviated, but for example, the cover film feed amount is less than the expected amount. If the cover film is pushed into the functional recess, the amount (length) of the cover film is small. On the other hand, if the amount of the cover film fed out exceeds the expected amount, the cover film is pushed into the functional recess. It is assumed that the amount of cover film to be wound is large. Thus, the container film and the cover film are greatly displaced in the longitudinal direction by adjusting the pushing amount of the cover film into the functional recess according to the slight variation in the feed amount of the cover film or the like. Such a risk can be prevented, and as a result, the alignment of the identification information printed on the cover film can be more reliably performed.

  Means 4. The constant feeding means includes a detecting means for detecting registration marks provided at regular intervals along the longitudinal direction of the cover film, and a controller for stopping the driving of the feeding means based on the detection by the detecting means. The blister packaging machine according to means 3, characterized by comprising:

  According to the means 4, since the cover film is fed out at regular intervals by detecting the registration marks given at regular intervals with respect to the cover film, for example, the fixed amount is obtained by actually measuring the feeding amount of the cover film. As compared with the configuration in which the system can be fed out, it is possible to prevent a situation in which slight deviations are accumulated and become large deviations. Therefore, it is possible to more reliably align the identification information printed on the cover film. In addition, the configuration of the constant feeding means can be simplified as compared with the case where the amount of feeding of the cover film is actually measured.

  Means 5. The sum of the transfer distance of the container film that is intermittently transferred and the length of the cover film that is pushed into the functional recess is equal to the interval at which the registration mark is attached to the cover film. The blister packaging machine according to means 4, wherein the blister packaging machine is set to be

  According to the means 5, it is possible to realize stable and constant feed and push-in, and it is possible to more reliably prevent displacement.

  Means 6. The pushing means includes a buffering means for changing the pushing amount of the cover film into the functional recess according to a repulsive force received from the cover film when the cover film is pushed into the functional recess. The blister packaging machine according to any one of means 3 to 5, characterized in that:

  According to the means 6, since the pushing amount into the functional recess is variable by the repulsive force received from the cover film, the cover film is not pushed further into the functional recess when there is no cover film stored in the buffer mechanism. can do. Therefore, it is possible to prevent a risk that the cover film is forcibly pushed into the functional concave portion and the cover film is stretched or the container film is crushed due to this.

  Means 7. The punching / cutting means cuts the cover film and the container film along the width direction at a non-attachment portion between the pocket portion and the functional recess. The blister packaging machine according to any one of 6.

  For example, when the cover film and the container film are separated at the part where the cover film and the container film are separated, either the cover film or the container film is initially suspended in the air. It is in a floating state. For this reason, at the time of separation, there is a possibility that the cover film extends or the container film is deformed.

  In this respect, according to the present means 7, the pocket portion and the functional recess are separated. In the said site | part, since the recessed part etc. are not formed in the container film and the cover film and the container film are closely_contact | adhering, the said malfunction can be prevented.

  Moreover, according to this means, since it separates between a pocket part and a functional recessed part, the edge part of a cover film will protrude outside from a container film only in one side part. Therefore, compared with the case where it cuts in a functional recessed part, the protrusion length of the cover film which protrudes outside from a container film can be made longer. As a result, the effect of picking up the cover film and making it easier to beat is more reliably achieved.

Means 8. The sealing means includes an upper mold that comes into contact with the cover film and a lower mold that comes into contact with the container film, and the container film that is fed so as to be overlapped between the upper mold and the lower mold, and A structure in which both films are thermally bonded by press-contacting the cover film with the upper mold and the lower mold,
The upper mold includes a pressing protrusion that protrudes toward the lower mold from a surface that contacts the cover film, corresponding to the functional recess,
When the upper mold and the lower mold move relative to each other in the contact direction, the pushing projection pushes the cover film into the functional recess, and at the periphery of the pocket portion positioned upstream of the functional recess. Correspondingly, the blister packaging machine according to any one of means 1 to 7, wherein the container film and the cover film are adhered.

  According to the means 8, the sealing step for bonding the container film and the cover film and the pressing step for pushing the cover film into the functional recess can be performed by relatively moving the upper die and the lower die in the contact direction. Therefore, it is possible to improve manufacturing workability, reduce costs, and the like. When the configuration of the means 8 is adopted, the sealing means having the pushing protrusion also serves as the pushing means.

Means 9. A blister packaging machine in which a plurality of the pocket portions are formed so as to be aligned in the width direction of the container film by the pocket portion forming means,
The blister according to any one of means 1 to 8, wherein the functional concave portions provided corresponding to the plurality of pocket portions arranged in the width direction of the container film are formed continuously and in a straight line. Packaging machine.

  For example, when the functional recesses are formed so as to be lined up in the width direction of the container film (intermittently), individually corresponding to the plurality of pocket portions formed so as to be lined up in the width direction of the container film. When the cover film is pushed into each functional recess, the cover film may become wrinkles. On the other hand, according to this means 9, since the functional concave portions corresponding to all the pocket portions arranged in the width direction of the container film are formed continuously and in a straight line, the above-mentioned problems can be prevented, Can be prevented.

  Hereinafter, an embodiment will be described with reference to the drawings.

  As shown in FIGS. 2A and 2B, the blister pack 1 includes a container film 3 having a pocket portion 2 and a cover film 4 attached to the container film 3 so as to close the pocket portion 2. I have. The container film 3 is made of a thermoplastic resin such as PP or PVC, and the cover film 4 is made of aluminum or the like, for example. A work 5 is accommodated in the pocket portion 2. Examples of the work 5 in the present embodiment include an electronic component, an electronic device, food, a medical device, and the like. In addition, although illustration is omitted, identification information (for example, product number, expiration date, etc.) indicating the content of the workpiece 5 is printed on the surface of the cover film 4.

  The container film 3 is provided with a functional recess 8 having a substantially U-shaped cross section that is recessed along the one side in the same direction as the pocket 2. In the one side part in which the said functional recessed part 8 was formed among the blister packs 1, the edge of the container film 3 and the edge of the cover film 4 are not aligned, and the cover film 4 protrudes outside the container film 3. ing.

  Next, the structure of the blister packaging machine 10 for manufacturing the blister pack 1 will be described.

  As shown in FIG. 1, on the most upstream side of the blister packaging machine 10, a strip-shaped container film 3 is wound in a roll shape. In this embodiment, the container film 3 is intermittently conveyed from the left side (upstream) to the right side (downstream) in FIG. 1 in a state where both sides are gripped by the chain clip conveyor 11.

  The blister packaging machine 10 includes a pocket forming means 12, a filling means 13, a sealing means 14, and a cutting means 15 (which constitutes a punching / cutting means) along the conveyance path of the container film 3. .

  The pocket portion forming means 12 is configured to be able to partially heat the container film 3 and includes an upper mold 21 and a lower mold 22 provided above and below the container film 3. The upper mold 21 includes a first molding convex portion 21 a that molds the pocket portion 2 and a second molding convex portion 21 b that molds the functional concave portion 8. The lower die 22 includes a first accommodation recess 22a that can accommodate the first molding convex portion 21a of the upper mold 21 and a second accommodation recess 22b that can accommodate the second molding projection 21b. Then, in a state where the container film 3 is relatively flexible by heating, the upper mold 21 and the lower mold 22 are relatively moved in the contact direction so that the container film 3 is aligned in the transport direction of the container film 3. Thus, the pocket portion 2 and the functional recess 8 are formed almost simultaneously.

  In the present embodiment, as shown in FIG. 3A, a plurality (for example, seven) of pocket portions 2 are arranged in the width direction of the container film 3 (direction orthogonal to the transport direction), and all these pockets. A single functional recess 8 extending in a straight line along the width direction of the container film 3 is simultaneously formed so as to be located on the downstream side of the portion 2 (right side in FIG. 3A). The pocket portion 2 and the functional recess 8 are formed at an interval between the transport operations of the container film 3. Moreover, in this embodiment, the pocket part formation means 12 serves as the functional recessed part formation means.

  The filling means 13 drops the work 5 by opening a shutter (not shown) at predetermined intervals, and the work 5 is put into each pocket portion 2 in accordance with the shutter opening operation. The filling of the work 5 is performed at an interval between the transport operations of the container film 3.

  The cover film 4 is wound in the form of a roll separately from the container film 3 on the upstream side of the sealing means 14, and the drawing end side thereof is guided toward the sealing means 14 via a guide roller or the like.

  In the present embodiment, the cover film 4 is intermittently fed at a constant pitch by a feeding roller 41 connected to a motor (not shown). More specifically, as shown in FIG. 3A, registration marks 4a are attached to the cover film 4 at regular intervals along the longitudinal direction. Further, detection means 42 for detecting the registration mark 4 a is provided corresponding to the transport path of the cover film 4, and is electrically connected to the detection means 42 and the motor, and the registration mark 4 a is detected by the detection means 42. There is provided a controller (not shown) for stopping the rotation of the feeding roller 41 (the motor) when this is detected. As a result, the cover film 4 is fed out by a predetermined distance corresponding to the predetermined interval with the registration mark 4a. The registration mark 4a is printed on the side of the cover film 4 that is cut off by the cutting means 15 and discarded or recycled. In this embodiment, the feeding roller 41 connected to the motor constitutes the feeding means, and the detection means 42 and the controller for controlling the driving of the feeding roller 41 (the motor) are fixed feeding means (predetermined amount feeding means). ).

  The feeding roller 41 is finally stopped when the detecting means 42 detects the registration mark 4a. However, in this embodiment, the rotation speed is set to be slow immediately before stopping. . That is, the rotation speed from the start of rotation to the detection of the registration mark 4a (that is, the feed amount) is set in advance so that the rotation speed is reduced after a predetermined rotation from the start of rotation. Yes. For this reason, the amount (length) of the cover film 4 that is fed out after the registration mark 4a is detected by the detecting means 42 until the feeding roller 41 is completely stopped can be reduced as much as possible. As a result, it is possible to suppress variations in the feed amount of the cover film 4 as much as possible. Even when a predetermined time elapses after the registration mark 4a is detected or a predetermined amount is fed out, the feeding roller 41 is stopped, and the rotation speed of the feeding roller 41 is decreased after the registration mark 4a is detected. Similar effects are produced.

  In the present embodiment, a buffer mechanism 44 that can store the cover film 4 fed by the feed roller 41 is provided between the feed roller 41 and the sealing means 14. As shown in FIG. 4 and the like, the buffer mechanism 44 includes a pair of driven rollers 45 and 46, and a dancer roller 47 provided so as to be vertically displaceable between the pair of driven rollers 45 and 46. The cover film 4 is hung in the order of the upper side of the driven roller 45, the lower side of the dancer roller 47, and the upper side of the driven roller 46 from the upstream side.

  When the cover film 4 is fed by the feed roller 41, the dancer roller 47 descends and the cover film 4 fed between the pair of driven rollers 45, 46 is stored ( (See FIG. 4). On the other hand, when the cover film 4 is pulled to the sealing means 14 side, the cover film 4 stored between the pair of driven rollers 45 and 46 is drawn to the sealing means 14 side, and the dancer roller 47 is raised. (See FIG. 5). In addition, since the container film 3 and the cover film 4 are adhered downstream from the sealing means 14, when the container film 3 is conveyed for a certain distance, the cover film 4 is also drawn out by the same distance. It becomes. The interval at which the registration mark 4a is attached is set slightly longer than the one-time feeding distance (one pitch) of the container film 3 that is intermittently fed.

  The buffer mechanism 44 is provided with a stopper 48 in a fixed state above the dancer roller 47 so as to be in contact with the dancer roller 47. The presence of the stopper 48 restricts the movement of the dancer roller 47 above a predetermined position.

  The sealing means 14 includes an upper mold 23 whose lower surface can be heated to a predetermined sealing temperature, and a lower mold 24 in which recesses or openings corresponding to the pocket portions 2 and the functional recesses 8 are formed. 23 and 24 are configured to be vertically movable and press-contactable. And between the upper mold | type 23 and the lower mold | type 24, the container film 3 with which the workpiece | work 5 was filled with respect to the pocket part 2, and the cover film 4 piled up on the container film 3 so that the pocket part 2 might be plugged up And the films 3 and 4 are brought into pressure contact with each other by the molds 23 and 24, so that the cover film 4 is heated against the peripheral portion of the pocket portion 2 (the portion with the dotted pattern in FIG. 3A). It will be glued. As a result, a band-shaped blister film 16 in which the pocket portion 2 filled with the workpiece 5 is sealed with the cover film 4 is manufactured. In addition, adhesion | attachment of this container film 3 and the cover film 4 is performed in the case of the interval between conveyance operations of the container film 3. FIG.

  Now, in this embodiment, the upper mold 23 of the sealing means 14 has a cover film at a position corresponding to the functional recess 8 (position facing the recess or opening formed in the lower mold 24 corresponding to the functional recess 8). 4 is provided with a pushing projection 51 projecting from the lower surface abutting against 4. The tip end of the pushing protrusion 51 is inserted into the functional recess 8. The upper mold 23 and the lower mold 24 are moved relative to each other in the contact direction so that the cover film 4 is pushed into the functional recess 8 by the push protrusion 51 before the container film 3 and the cover film 4 are bonded. It has become. In this embodiment, the sealing means 14 provided with the pushing projection 51 also serves as the pushing means.

  In addition, as described above, the interval at which the registration mark 4a is attached is set slightly longer than the one-time transport distance (one pitch) of the container film 3 that is intermittently transferred. Even in the state after the transfer of the above, a slight amount of the cover film 4 is stored in the buffer mechanism 44. A slight amount of the cover film 4 stored in the buffer mechanism 44 is pulled out when the cover film 4 is pushed into the functional recess 8 as described above, so that the cover film 4 is moved relatively smoothly to the functional recess 8. It can be pushed in. Therefore, when the cover film 4 is pushed into the functional recess 8, the load on the cover film 8 can be suppressed. In that sense, in this embodiment, the interval between the registration marks 4a is the sum of the transport distance (one pitch) of the container film 3 and the length of the cover film 4 pushed into the functional recess 8. It is set to be equal. For this reason, in the state where the cover film 4 is pushed into the functional recess 8, all the stored cover film 4 is pulled out, and the dancer roller 47 rises and comes into contact with the stopper 48.

  Further, as shown in FIG. 4 and the like, the pushing protrusion 51 is arranged in a state of being inserted into a hole portion 52 formed on the lower surface of the upper mold 23 and is coiled with respect to the bottom surface (top wall portion) of the hole portion 52. 53 is connected. That is, when the pressing projection 51 receives a predetermined repulsive force from the cover film 4 when the cover film 4 is pressed into the functional recess 8, the pressing protrusion 51 moves relative to the direction in which the hole 52 is immersed. The projecting length projecting from becomes shorter.

  More specifically, in the state in which the cover film 4 is stored in the buffer mechanism 44 (between the driven rollers 45 and 46), the pushing protrusion 51 hardly covers the hole 52 and covers the functional recess 8. The film 4 can be pushed in. On the other hand, when all of the stored cover film 4 is pulled out and the dancer roller 47 and the stopper 48 come into contact with each other, the cover film 4 becomes more tensioned and the repulsive force that the pushing projection 51 receives from the cover film 4 is increased. Rise more than before. In the present embodiment, even if the upper die 23 further moves downward after the dancer roller 47 and the stopper 48 come into contact with each other, the push projection 51 moves relative to the hole 52 so that the cover film 4 As described above, it is prevented from being pushed into the functional recess 8. That is, the pressing amount of the cover film 4 can be changed following the amount of the remaining cover film 4 stored in the buffer mechanism 44. In the present embodiment, the coil spring 53 constitutes a buffer means.

  Moreover, the cutting | disconnection means 15 is provided with the upper mold | type 31 and the lower mold | type 32, and has the function to separate the blister film 16 into the blister pack 1 unit. As shown in FIG. 3B, the upper die 31 is provided with a cutting blade 31a for cutting the blister film 16, and the lower die 32 is opposed to the cutting blade by a receiving portion 32a. (These correspond to a cutting line L1 described below). Note that the blister film 16 is cut off during an interval between transport operations of the container film 3 (blister film 16).

  And the blister film 16 is cut | disconnected by the upper mold | type 31 and the lower mold | type 32 moving to a contact direction mutually. In this embodiment, as shown to Fig.3 (a), it is located between the pocket part 2 and the functional recessed part 8 located in the upstream (left side in FIG. 3) from the said pocket part 2, and the container film 3 of The blister film 16 is cut at a cutting line L1 extending along the width direction and a cutting line L2 located on both sides of each pocket portion 2 and extending along the transfer direction of the container film 3. Thereby, the blister film 16 is separated so as to separate the pocket portions 2 one by one, and the blister pack 1 is formed.

  Further, as described above, in the present embodiment, the container film 3 and the cover film 4 are bonded only at the peripheral edge portion of the pocket portion 2 (the portion with the dotted pattern in FIG. 3A). In the transfer direction of the container film 3 and between the pocket portions 2 adjacent to each other in the width direction of the container film 3, a non-attached portion where the container film 3 and the cover film 4 are not bonded is formed. The In the present embodiment, the functional concave portion 8 is formed at the non-attachment portion between the pocket portions 2 aligned in the transfer direction of the container film 3, and the cutting line L1 is set to be positioned. Further, the cutting line L2 is set so as to be positioned at a non-attached portion between the pocket portions 2 arranged in the width direction of the container film 3. As a result, a non-attached portion is formed at the peripheral edge of the prestar pack 1, and the cover film 4 can be wound from the container film 3. In addition, in parts other than the pocket part 2 and the functional recessed part 8, even if it is a non-attachment part, the container film 3 and the cover film 4 are in the close state.

  Below the cutting means 15, a conveyor 17 is provided for transferring the blister pack 1 to a finished product hopper (not shown). Although not shown, on the downstream side of the cutting means 15, a cutting means for cutting off the remaining end material after cutting, a scrap hopper for storing the cut end material, and the like are provided. ing. Also, as appropriate, inspect whether the work 5 is surely filled in each pocket 2, whether there is an abnormality in the appearance of the work 5, and whether foreign matter is mixed between the pocket 2, the films 3, 4, etc. Appearance inspection apparatus for performing may be provided as appropriate. In addition, it is good also as providing the knob | pick part test | inspection apparatus for test | inspecting whether the cover film 4 protrudes from the edge part of the container film 3 in the downstream edge part of the blister film 16. FIG.

  Next, an example of a process (sealing process) in which the container film 3 and the cover film 4 are bonded will be described with reference to the drawings.

  First, as shown in FIG. 4, the cover film 4 is fed out by the feeding roller 41 until the registration mark 4 a is detected by the detecting means 42. At this time, the dancer roller 47 is lowered, and the cover film 4 that has been fed is stored in the buffer mechanism 44.

  Next, as shown in FIG. 5, the container film 3 is conveyed by one pitch. Further, as the container film 3 is transported, the cover film 4 stored in the buffer mechanism 44 is also drawn out by the same length. However, as described above, even after the cover film 4 is pulled out as the container film 3 is transported, a slight amount of cover film 4 (which is pushed into the functional recess 8) is stored in the buffer mechanism 44. Has been.

  Subsequently, as shown in FIGS. 6A and 6B, the upper mold 23 and the lower mold 24 of the sealing means 14 are relatively moved in the contact direction.

  At this time, in a stage before the upper mold 23 comes into contact with the cover film 4, first, the pushing protrusion 51 comes into contact with the cover film 4. By further bringing the upper mold 23 and the lower mold 24 closer from the contact state, the cover film 4 is pushed into the functional recess 8 by the pushing protrusion 51. Further, as the cover film 4 is pushed into the functional recess 8, the cover film 4 facing the upper mold 23 is shifted to the downstream side, and the remaining cover film 4 stored in the buffer mechanism 44 is sealed. It is pulled out to the means 14 side. When the dancer roller 47 comes into contact with the stopper 48, all the remaining cover film 4 stored in the buffer mechanism 44 is pulled out, and further pulling of the cover film 4 is restricted, and the pushing protrusion 51 No further indenting by will be performed.

  Thereafter, the container film 3 and the cover film 4 are pressed against each other by the upper mold 23 and the lower mold 24, and the container film 3 and the cover film 4 are thermally bonded in a state where the cover film 4 is pushed into the functional recess 8. . The sealing process is completed as described above.

  In addition, after the sealing process is finished, the upper mold 23 and the lower mold 24 are separated from each other, but the blister film 16 is maintained in a state in which the cover film 4 is pushed into the functional concave portion 8, and the cutting means remains in that state. 15 will be transferred.

  Then, the blister film 16 is cut off at the cutting lines L1 and L2 in a state where the cover film 4 is pushed into the functional recess 8 by the cutting means 15, and the blister pack 1 is formed.

  In the state before cutting the blister film 16 at the cutting line L1, the container film 3 and the cover film 4 are bonded on the upstream side and the downstream side of the functional recess 8, and the cover film 4 is pushed into the functional recess 8. Is maintained. On the other hand, when the blister film 16 is cut along the cutting line L1, the cover film 4 becomes a free end on the downstream side (the right side in FIG. 3B) from the functional recess 8, so that it is pushed into the functional recess 8. The covered cover film 4 comes out of the functional recess 8 by its own elastic force and extends straight so as to straddle the cutting line L1, that is, project from the end of the container film 3. Thereby, the blister pack 1 in which the end portion of the cover film 4 protrudes outward from the container film 3 in the one side portion where the functional concave portion 8 is formed is surely obtained.

  As described above in detail, in the blister pack 1 manufactured by the blister packaging machine 10 in the present embodiment, the end of the cover film 4 protrudes outside the container film 3 at one side where the functional recess 8 is formed. Yes. The said blister pack 1 can touch a finger | toe with respect to the surface at the side of the container film 3 among the cover films 4 in the said one side part, and it is easy to roll the cover film 4 in it. Further, when the length of the portion of the cover film 4 that protrudes from the end of the container film 3 is sufficiently secured, the cover film 4 and the container film 3 are separated from each other so as to be separated from each other. The end of the cover film 4 can be picked without the need to roll 4. In this way, by causing the end of the cover film 4 to protrude outward from the container film 3, for example, the container film 3 that is harder and thicker than the cover film 4 protrudes outward from the cover film 4. Compared to a configuration in which the edges of the container film 3 and the cover film 4 are aligned, the cover film 4 can be rolled up and peeled off from the container film 3 relatively easily. Of course, it is not necessary to make the gap between the container film 3 and the cover film 4 wide at the end of the blister pack 1. From these things, the blister pack 1 which is easy to open can be obtained stably.

  Further, the presence of the buffer mechanism 44 eliminates the need to synchronize the conveyance of the container film 3 and the feeding of the cover film 4, so that the feeding control of the films 3 and 4 can be made relatively easy.

  Further, according to the present embodiment, the cover film 4 stored in the buffer mechanism 44 is slightly left even after being pulled out with the conveyance of the container film 3. Further, the remaining cover film 4 is all pulled out by the cover film 4 being pushed into the functional recess 8 by the push-in protrusion 51. In other words, the pushing protrusion 51 pushes the cover film 4 into the functional recess 8 until all the remaining cover film 4 stored in the buffer mechanism 44 is pulled out. For example, when the feed amount of the cover film 4 is less than the expected amount, the amount (length) of the cover film 4 pushed into the functional recess 8 is small, while the cover film 4 When the feeding amount is larger than the expected amount, the amount of the cover film 4 pushed into the functional recess 8 is large. Thus, the container film 3 and the cover film 4 are moved in the longitudinal direction by adjusting the pushing amount of the cover film 4 into the functional recess 8 according to the slight variation in the feed amount of the cover film 4 and the like. As a result, it is possible to more reliably align the identification information printed on the cover film 4.

  Further, since the cover film 4 is fed out at regular intervals by detecting the registration marks 4a attached to the cover film 4 at regular intervals, for example, by measuring the feed amount of the cover film 4 by a constant amount As compared with the configuration in which the system can be fed out, it is possible to prevent a situation in which slight deviations are accumulated and become large deviations. Therefore, the positioning of the identification information printed on the cover film 4 can be more reliably performed. Moreover, compared with the case where the amount of feeding of the cover film 4 is actually measured, it is possible to simplify the configuration for feeding out at regular intervals.

  Furthermore, the sum of the transfer distance (one pitch) of the container film 3 and the length of the cover film 4 pushed into the functional recess 8 is equal to the interval at which the registration mark 4 a is attached to the cover film 4. Therefore, stable constant feed and push-in can be realized, and displacement can be prevented more reliably.

  Further, the push projection 51 is connected to the upper mold 23 via the coil spring 53, so that when the cover film 4 stored in the buffer mechanism 44 runs out, the cover film 4 is not pushed further into the functional recess 8. It has a configuration. For this reason, the cover film 4 is forcibly pushed into the functional recess 8, thereby preventing the possibility of the cover film 4 being stretched or the container film 3 being crushed. it can.

  Further, for example, when the blister film 16 is cut at a site where the cover film 4 and the container film 3 are separated from each other, either the cover film 4 or the container film 3 is in a suspended state at the beginning of cutting. End up. Therefore, there is a possibility that the cover film 4 may be extended or the container film 3 may be deformed during cutting. In this regard, in the present embodiment, the cutting line L1 is set between the pocket portion 2 and the functional concave portion 8 located on the upstream side of the pocket portion 2. In the said site | part, since the recessed part etc. are not formed in the container film 3, and the cover film 4 and the container film 3 are closely_contact | adhering, the said malfunction can be prevented.

  Moreover, according to this embodiment, since it cut | disconnects between the pocket part 2 and the functional recessed part 8, the edge part of the cover film 4 will protrude outside from the container film 3 only in one side part. Therefore, compared with the case where the blister film 16 is cut at the functional recess 8, the protruding length of the cover film 4 protruding outward from the container film 3 can be made longer. As a result, the effect of picking up the cover film 4 and making it easier to beat is more reliably achieved.

  In addition, when the upper mold 23 and the lower mold 24 constituting the sealing means 14 move relative to each other in the contact direction, the cover film 4 is pushed into the functional recess 8 by the push projection 51 and the container film 3 and the cover film 4 And are to be bonded. That is, a sealing process for bonding the container film 3 and the cover film 4 with one operation of moving the upper mold 23 and the lower mold 24 in the contact direction, and a pressing process for pressing the cover film 4 into the functional recess 8. Therefore, it is possible to improve manufacturing workability and reduce costs. Furthermore, since the pocket part 2 and the functional recessed part 8 are formed simultaneously by the pocket part formation means 12, improvement of manufacturing workability, cost reduction, and the like can be achieved.

  Further, for example, in the case where the functional recesses are intermittently formed in the width direction of the container film 3 individually corresponding to the seven pocket portions 2 arranged in the width direction of the container film 3, When the cover film 4 is pushed in, the cover film 4 may become wrinkles. On the other hand, according to the present embodiment, the functional recesses 8 are formed continuously and in a straight line so as to correspond to all seven pocket portions 2 arranged in the width direction of the container film 3, so that Can be prevented, and deterioration of quality can be prevented.

  It is also possible to attach a cover film 4 wider than the container film 3 to the container film 3 so that the end of the cover film 4 protrudes from the container film 3. Is conveyed while being held by the clip of the chain clip conveyor 11, it is difficult to adopt such a configuration. Furthermore, since the registration mark 4a remains in the blister pack 1, the appearance quality may be deteriorated. It is also conceivable to form a functional recess in the container film 3 conveyed by the chain clip conveyor 11 so as to extend along the conveying direction. In this case, the cover film 4 attached to the container film 3 may be narrower than the container film 3, and the registration mark 4a can be cut off. There is a possibility that wrinkles may be formed on the cover film 4 when the functional recess is pushed. In this respect, by providing the functional recess 8 as in the present embodiment, it is possible to prevent problems such as formation of wrinkles on the cover film 4.

  In addition, by adopting the configuration of this embodiment, the appearance of the container film 3 protrudes from the end of the cover film 4, resulting in a decrease in appearance quality, or the end of the container film 3. It is possible to avoid the possibility that foreign matter is likely to be caught between the container film 3 and the cover film 4 due to the fact that the portion and the cover film 4 are spread.

  Although one embodiment has been described above, the present invention is not limited to such an embodiment, and various embodiments can be implemented without departing from the spirit of the present invention.

  (A) The shape of the blister pack 1 is not particularly limited as long as the end of the cover film 4 protrudes from the container film 3 at least at one side, and the cover film 4 can be easily peeled off. For example, the prestar pack 1 may include a plurality of pocket portions 2. In this case, it is desirable to provide a slit (thin wall portion) for easily separating the pocket portion 2. A plurality of workpieces may be accommodated in one pocket portion 2.

  (B) In the above embodiment, the blister sheet 16 is cut between the pocket portion 2 and the functional recess 8 located on the upstream side of the pocket portion 2, but the functional recess 8 and the upstream side of the functional recess 8. The blister sheet 16 may be cut between the pocket portion 2 positioned at the position 2, or the blister sheet 16 may be cut at the functional recess 8. In addition, when employ | adopting the latter structure, the functional recessed part 8 will be divided and formed in two sides, and the edge part of the cover film 4 will be the container film 3 in the two sides where the said functional recessed part 8 was formed. It will protrude outward from.

  (C) The cover film 4 is configured to be intermittently fed out by a predetermined amount by detecting the registration mark 4a, but is not particularly limited to such a configuration. For example, the feeding roller 41 may be configured so that it can be fed out by a certain amount by measuring the rotation angle (the number of rotations). Further, the cover film 4 may be configured to be continuously drawn out. Further, the feeding roller 41, the buffer mechanism 44, and the like may be omitted, and the feeding may be followed in accordance with the conveyance of the container film 3 and the pressing into the functional recess 8.

  (D) In the above embodiment, the transfer (conveyance) of the container film 3 is started after the transfer (feeding) of the cover film 4 is completed. Good. In this case, productivity can be improved. However, it is assumed that the cover film 4 is not fed out after the conveyance of the container film 3 is completed until the thermal bonding (sealing process) by the sealing means 14 is completed. Thereby, the effect that registration information etc. printed on cover film 4 can be aligned is produced reliably.

  (E) In the above-described embodiment, the coil spring 53 is employed as the buffering means. However, the coil spring 53 is not particularly limited to such a configuration, and the functional recess is used until the cover film 4 stored in the buffer mechanism 44 disappears. It is sufficient that the cover film 4 is pushed into the structure 8. For example, instead of the coil spring 53, rubber or a cylinder mechanism may be used, or a sensor, a controller, or the like may be provided to control the adjustment of the protrusion length of the pushing protrusion 51. Note that the pushing protrusion 51 may be fixedly (integrally) provided to the upper mold 23.

  (F) Although not particularly mentioned in the above embodiment, the pressing amount of the cover film 4 into the functional recess 8 by the pressing protrusion 51 (the amount of insertion of the pressing protrusion 51 into the functional recess 8) functions by the pressing protrusion 51. It is desirable that the cover film 4 pushed into the concave portion 8 is set to such an extent that it does not come into contact with the bottom surface of the functional concave portion 8 (no bottoming). As a result, even when the feeding amount of the cover film 4 is larger than the expected amount, the cover film 4 stored in the buffer mechanism 44 by pushing the cover film 4 into the functional recess 8 by the pushing protrusion 51. The cover film 4 can be pushed into the functional concave portion 8 more than the predetermined amount (scheduled length) so that all of the above can be reliably pulled out. Therefore, the effect of being able to align the identification information or the like printed on the cover film 4 is more reliably achieved.

It is a schematic block diagram which shows a blister packaging machine. (A) is a perspective view which shows a blister pack, (b) is sectional drawing of a blister pack. (A) is a top view of a blister film, (b) is sectional drawing of a blister film. It is a schematic diagram for demonstrating the procedure in a sealing process. It is a schematic diagram for demonstrating the procedure in a sealing process. (A) is a schematic diagram for demonstrating the procedure in a sealing process, (b) is the figure which expanded the peripheral part of the pushing protrusion.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Blister pack, 2 ... Pocket part, 3 ... Container film, 4 ... Cover film, 5 ... Work as an unfilled thing, 8 ... Functional recessed part, 10 ... Blister packaging machine, 11 ... Chain clip conveyor, 12 ... Pocket part Forming means (functional recess forming means), 13 ... filling means, 14 ... sealing means (pushing means), 15 ... cutting means as punching / cutting means, 16 ... blister film, 41 ... feeding roller constituting the feeding means, 42... Detection means constituting constant feed means (predetermined amount feeding means) 44. Buffer mechanism 51. Pushing projection 53 53 Coil spring as buffer means

Claims (9)

Pocket portion forming means for forming a pocket portion for a strip-shaped container film that is intermittently transferred;
Filling means for filling the pocket portion with a workpiece;
Sealing means for attaching a cover film to the container film so as to close the pocket portion filled with a workpiece;
A blister packaging machine comprising a punching / cutting means capable of separating the container film to which the cover film is attached by punching or cutting,
A functional recess forming means for forming a functional recess that is recessed on the same side as the pocket portion at a position adjacent to or close to the pocket portion in the transfer direction of the container film;
Pressing means for pressing the cover film into the functional recess,
The sealing means is formed with a non-attachment site where the container film and the cover film are not attached in a predetermined region including at least the functional recess when the pressing means presses the cover film into the functional recess. So as to attach the container film and the cover film at least corresponding to the peripheral edge of the pocket portion,
The punching / cutting means cuts the cover film and the container film along the width direction at least in the functional recess or in a non-attached portion in the vicinity thereof in a state where the cover film is pushed into the functional recess. It is a structure to separate,
A blister wrapping machine configured to obtain a blister pack in which an end of the cover film protrudes outward from the container film at least on one side.   A predetermined amount feeding means for feeding the belt-shaped cover film toward the sealing means by a predetermined amount; and a buffer mechanism capable of storing the predetermined amount of the cover film fed by the predetermined amount feeding means. The blister packaging machine according to claim 1, characterized in that Pocket portion forming means for forming a pocket portion for a strip-shaped container film that is intermittently transferred;
Filling means for filling the pocket portion with a workpiece;
Sealing means for attaching a cover film to the container film so as to close the pocket portion filled with a workpiece;
A blister packaging machine comprising a punching / cutting means capable of separating the container film to which the cover film is attached by punching or cutting,
A functional recess forming means for forming a functional recess that is recessed on the same side as the pocket portion at a position adjacent to or close to the pocket portion in the transfer direction of the container film;
Pressing means for pressing the cover film into the functional recess,
The sealing means is formed with a non-attachment site where the container film and the cover film are not attached in a predetermined region including at least the functional recess when the pressing means presses the cover film into the functional recess. So as to attach the container film and the cover film at least corresponding to the peripheral edge of the pocket portion,
The punching / cutting means cuts the cover film and the container film along the width direction at least in the functional recess or in a non-attached portion in the vicinity thereof in a state where the cover film is pushed into the functional recess. It is a structure to separate,
At least one side portion is configured so that an end portion of the cover film protrudes outward from the container film, and a blister pack is obtained.
A feeding means capable of feeding the belt-shaped cover film toward the sealing means;
A constant feeding means for stopping driving of the feeding means when a certain amount of the cover film is fed by the feeding means;
A buffer mechanism capable of storing the cover film fed by the feeding means between the feeding means and the sealing means;
The cover film stored in the buffer mechanism is pulled out with the transfer of the container film,
The blister packaging machine, wherein the pushing means pushes the cover film into the functional recess, whereby all the remaining cover film stored in the buffer mechanism is pulled out.   The constant feeding means includes a detecting means for detecting registration marks provided at regular intervals along the longitudinal direction of the cover film, and a controller for stopping the driving of the feeding means based on the detection by the detecting means. The blister packaging machine according to claim 3, further comprising:   The sum of the transfer distance of the container film that is intermittently transferred and the length of the cover film that is pushed into the functional recess is equal to the interval at which the registration mark is attached to the cover film. The blister packaging machine according to claim 4, wherein the blister packaging machine is set to be.   The pushing means includes a buffering means for changing the pushing amount of the cover film into the functional recess according to a repulsive force received from the cover film when the cover film is pushed into the functional recess. The blister packaging machine according to any one of claims 3 to 5.   The punching / cutting means cuts off the cover film and the container film along a width direction thereof at a non-attachment portion between the pocket portion and the functional recess. Blister packaging machine in any one of thru | or 6. The sealing means includes an upper mold that comes into contact with the cover film and a lower mold that comes into contact with the container film, and the container film that is fed so as to be overlapped between the upper mold and the lower mold, and A structure in which both films are thermally bonded by press-contacting the cover film with the upper mold and the lower mold,
The upper mold includes a pressing protrusion that protrudes toward the lower mold from a surface that contacts the cover film, corresponding to the functional recess,
When the upper mold and the lower mold move relative to each other in the contact direction, the pushing projection pushes the cover film into the functional recess, and at the periphery of the pocket portion positioned upstream of the functional recess. Correspondingly, the said container film and the said cover film are adhere | attached, The blister packaging machine in any one of the Claims 1 thru | or 7 characterized by the above-mentioned. A blister packaging machine in which a plurality of the pocket portions are formed so as to be aligned in the width direction of the container film by the pocket portion forming means,
9. The functional concave portion provided corresponding to the plurality of pocket portions arranged in the width direction of the container film is formed continuously and in a straight line. Blister packing machine.

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