JP5635021B2 - Heating device and blister packaging machine - Google Patents

Description

  The present invention relates to a heating device that heats a container film to form a pocket portion that can accommodate a workpiece, and a blister packaging machine that includes the heating device.

  Generally, a blister pack such as a PTP sheet is attached to a container film so as to seal a container film in which a pocket portion capable of accommodating a workpiece such as a tablet is formed and an opening of the pocket portion in which the workpiece is accommodated. And a cover film. Moreover, the blister packaging machine which manufactures a blister pack is equipped with the pocket part formation apparatus which comprises the heating apparatus which heats the strip | belt-shaped container film transferred, and the shaping | molding apparatus which shape | molds a pocket part in the heated container film. Yes.

  By the way, in a blister packaging machine, a pocket part will be formed in a container film in order to prevent the occurrence of loosening and wrinkles in a part of the container film heated by a heating device, and to reduce curl later. There is a heating device that heats only the pocket portion formation region (see, for example, Patent Document 1). Such a heating device includes a pair of heating blocks with a container film interposed therebetween. Each of the pair of heating blocks includes a plurality of heating projections that can heat the pocket formation region, and a heater that can heat the heating projection. And the pocket part formation area | region will be heated by pinching the pocket part formation area | region of a container film between the heating convex parts of a pair of heating block.

Japanese Patent Laid-Open No. 6-48421

  However, the heating block may be relatively inclined with respect to the container film due to various factors. In this case, not all of the plurality of pocket portion forming regions and the heating convex portions corresponding to each of them simultaneously contact, but there is a concern that the contact timing of each pocket portion forming region and the heating convex portion is shifted. Is done. That is, the portion of the container film that is first brought into contact with the heating block is pressed against the heating block more strongly and longer, and as a result, the temperature is more likely to rise than other portions. In some cases, the portion of the container film that is first in contact with the heating block may be excessively heated. In particular, when the container film is made of polypropylene, the first portion of the container film is likely to be heated. There is a possibility that “white turbidity” may occur at the portion in contact with the heating block. In this case, there is a concern that various problems such as deterioration in appearance quality and erroneous detection of “white turbidity” as a foreign object at the time of inspection may occur.

  On the other hand, in order to avoid the occurrence of “white turbidity” or the like, it is conceivable to reduce the temperature of the heating convex portion or weaken the degree of pressure contact of the heating block to the container film. However, even when these configurations are adopted, there is a concern that “white turbidity” cannot be completely eliminated, and there is a possibility that heating and softening of the container film cannot be performed suitably.

  The present invention has been made to solve the above-described problems and the like, and an object thereof is to provide a heating device and a blister packaging machine capable of preventing the occurrence of “white turbidity”. .

  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. In the process of manufacturing a substantially rectangular blister pack comprising a container film having a pocket portion in which a workpiece is accommodated and a cover film attached to the container film so as to close the opening of the pocket portion. A heating device that heats a pocket portion forming region in which the pocket portion is to be formed in the container film in a previous stage of forming the pocket portion with respect to the belt-shaped container film,
Provided with a pair of heating blocks across the container film,
Wherein at least one among the pair of heating blocks, with contactable convex portion is provided to the front Kipo socket portion formation region of the container film, the heating means is provided for heating the convex portions,
The heating block provided with the convex part is provided with an out-of-range convex part capable of coming into contact with a scrap area that is an area outside the product area that becomes the blister pack as a product of the container film,
On the other of the pair of heating blocks, a first support portion that supports the pocket portion formation region when the convex portion contacts the pocket portion formation region of the container film and heats the contact portion, A second support part is provided for supporting the scrap area when the out-of-range protrusion comes into contact with the scrap area of the container film;
The protruding length of the convex portion outside the range from the heating block main body is approximately the same as the protruding length of the convex portion from the heating block main body.

  According to the means 1, when the pocket portion forming region is heated with the container film sandwiched between the pair of heating blocks, the heating block in which the convex portion is formed is inclined so that the out-of-range convex portion is close to the container film. If it comes close to the container film in this state, the out-of-range convex part comes into contact with the container film before the convex part comes into contact with the container film. Thus, by providing the out-of-range convex portion, even when the heating block is tilted, the convex portion that first comes into contact with the container film out of the plurality of convex portions comes into contact with the container film, and finally It is possible to shorten the time until the projecting portion that abuts against the container film. That is, for example, in the case where the heating block is tilted by 5 degrees and there is no out-of-range convex part, the convex part that first comes into contact with the container film has a heating block inclination of 5 degrees to 0 degrees. In the meantime, it keeps abutting against the container film and is heated excessively. On the other hand, when the out-of-range convex portion exists, the convex portion that first comes into contact with the container film comes into contact with the container film immediately before the inclination of the heating block becomes approximately 0 degrees. Therefore, when the heating block is tilted, some of the plurality of pocket portion forming regions that are heated at one time by one heating operation of the heating device of the container film are excessively heated. Can suppress the occurrence of “white turbidity”. As a result, it is possible to improve the appearance quality of the blister pack, and to suppress various problems such as erroneous detection of “white turbidity” as a foreign object during inspection.

  Further, for example, when the out-of-range convex portion is also heated, the heating block in which the convex portion is formed is inclined as described above, and the out-of-range convex portion is placed in the container before the convex portion comes into contact with the container film. When it comes into contact with the film, “white turbidity” or the like may occur in the portion of the container film where the out-of-range convex portion first comes into contact. However, the “white turbidity” or the like occurs in the scrap area, and “white turbidity” or the like does not remain in the blister pack as the product. Therefore, the above-described effects such as improving the appearance quality are surely achieved.

  Both of the pair of heating blocks are provided with the convex portion, the out-of-range convex portion, and the heating means, and the convex portion of the one heating block and the convex portion outside the range are the first of the other heating block. It is good also as a structure which functions as a support part and a 2nd support part. Thus, when a heating convex part and a heating means are provided in both of a pair of heating blocks, that is, "the pocket in which the said pocket part is formed in the said pair of heating blocks, respectively in the said container film. Convex portions that can come into contact with the portion forming region are provided, and heating means for heating the convex portions are provided, and the pocket portion forming region is sandwiched and heated by the convex portions of the pair of heating blocks. In the case of “configuration”, “each heating block is provided with an out-of-range convex portion capable of contacting a scrap area that is an area outside the product area of the container film that is to be the blister pack as a product. In each of the heating blocks, the protruding length of the out-of-range protruding portion from the heating block body is approximately the same as the protruding length of the protruding portion from the heating block body. It may be used as the Rukoto ".

Mean 2. A plurality of the out-of-range convex portions are provided,
When the heating block provided with the convex portion and the out-of-range convex portion is viewed in plan, all the convex portions are arranged in a region inside the annular circumscribed line circumscribing all the out-of-range convex portions. The heating device according to the means 1, characterized in that

  According to the means 2, even if the heating block is tilted, it is possible to widen the range of the tilting direction of the heating block without causing “white turbidity” or the like in the blister pack. Therefore, the operational effects such as improvement of the appearance quality of the blister pack can be achieved more reliably. In addition, no matter which direction the heating block is tilted with respect to the container film, the out-of-range convex part is placed in the container before the convex part comes into contact with the container film or almost simultaneously with the convex part comes into contact with the container film. It will come into contact with the film. That is, when the heating block is tilted and the out-of-range convex portion comes into contact with the container film before the convex portion, the operational effects are as described above, but the convex portion and the out-of-range convex portion are simultaneously Even when it contacts the container film, the area of the part where the inclined heating block first contacts the container film can be increased. Accordingly, it is possible to reduce the strength of pressure contact with the container film of the convex portion that first comes into contact with the container film (suppresses the sinking of the convex portion into the container film) and to suppress the occurrence of “white turbidity” or the like. .

  Means 3. Means 2 is characterized in that when the heating block provided with the convex portion and the convex portion outside the range is viewed in plan, the convex portion is arranged on the inner side with a predetermined distance from the annular outer tangent line. The heating device described.

  According to the means 3, no matter which direction the heating block is inclined with respect to the container film, the out-of-range convex part comes into contact with the container film before the convex part comes into contact with the container film. Therefore, the occurrence of “white turbidity” or the like in the blister pack can be prevented more reliably.

  Means 4. In the width direction of the container film perpendicular to the transfer direction of the container film, the portion heated by the out-of-range convex portion of the container film is located on the side of the product region. The heating apparatus according to any one of means 1 to 3.

  According to the means 4, the product areas can be continued without interposing the scrap areas between the adjacent product areas in the container film transfer direction. Therefore, productivity can be improved and resources can be saved.

  Means 5. The heating device according to any one of means 1 to 4, wherein the out-of-range convex portion is configured to be able to change a protruding length from the heating block main body.

  According to the means 5, when an error or a deviation occurs in the contact state of the convex portion with the container film, the protruding length of the convex portion outside the range can be adjusted and corrected. Moreover, the extent of the press-contact to the container film of a convex part can also be changed by adjusting the protrusion length of a convex part outside a range. Accordingly, it is possible to improve convenience and the like.

  Means 6. A blister packaging machine comprising the heating device according to any one of the above means 1 to 5.

  According to the means 6, the blister packaging machine which can suppress generation | occurrence | production of the cloudiness etc. in a blister pack can be obtained.

It is a perspective view of a PTP sheet. It is a fragmentary sectional view of a PTP sheet. It is the schematic for demonstrating the whole structure of a PTP packaging machine. It is a cross-sectional schematic diagram which shows a heating apparatus. It is a perspective view of a heating block. It is a plane schematic diagram of the container film for demonstrating the contact site | part of the heating convex part with respect to a container film, and a convex part outside a range. It is a cross-sectional schematic diagram of the heating apparatus for demonstrating when an upper heating block inclines.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIGS. 1 and 2, a PTP sheet 1 as a blister pack includes a container film 3 in which a pocket portion 2 for accommodating a tablet 5 as a workpiece is formed, and a container that closes the pocket portion 2. And a cover film 4 attached to the film 3. The container film 3 of the present embodiment is made of polypropylene (PP), and the cover film 4 is made of aluminum. In addition, the PTP sheet 1 of the present embodiment has a substantially rectangular shape, and is provided so that five pocket portions 2 are arranged in the longitudinal direction of the PTP sheet 1 and two in the lateral direction.

  Next, the PTP packaging machine 11 as a blister packaging machine for manufacturing the PTP sheet 1 will be described. As shown in FIG. 3, on the uppermost stream side of the PTP packaging machine 11, the raw material of the strip-shaped container film 3 is wound in a roll shape. The container film 3 is transferred by a feed roller or a chain clip conveyor. A pocket portion forming device 12 for forming the pocket portion 2 in the container film 3 along the transfer path of the container film 3, a loading device 13 for loading the tablet 5 into the pocket portion 2, and a post-loading inspection device 14 are provided. Is provided.

  The pocket portion forming device 12 includes a heating device 15 that heats a pocket portion forming region R1 (see FIG. 6) in which the pocket portion 2 of the container film 3 is to be formed, and a pocket portion that is heated by the heating device 15. And a molding device 16 that molds the pocket portion 2 by extending the region R1. In the present embodiment, the heating device 15 performs a single heating operation to form two pocket portion formation regions R1 of the PTP sheet 1 (a total of 20 places in 4 rows in the transfer direction of the container film 3 and 5 rows in the width direction). At the same time, the two pocket portions 2 of the PTP sheet 1 are simultaneously molded by one molding operation of the molding device 16. Thereafter, one tablet 5 is loaded into each pocket 2 by the loading device 13. In addition, the post-injection inspection device 14 includes an illumination device, a camera, and the like. From the opening side of the pocket portion 2, the presence or absence of the tablet 5 in each pocket portion 2, the presence or absence of cracks in the tablet 5, the inclusion of foreign matter, etc. Perform such inspection.

  Further, the original film of the cover film 4 formed in a belt shape is wound in a roll shape, and the withdrawal end of the cover film 4 is directed to a film receiving roller 17 provided on the downstream side of the inspection device 14 after the insertion. It is guided. A heating roller 18 can be pressed against the film receiving roller 17, and the container film 3 and the cover film 4 are fed between the rollers 17 and 18.

  And the container film 3 and the cover film 4 will be heat-welded by the container film 3 and the cover film 4 passing between both the rollers 17 and 18 in a heating press-contact state. As a result, a band-shaped PTP film 7 in which the pocket portion 2 filled with the tablets 5 is sealed with the cover film 4 is manufactured.

  Downstream of the film receiving roller 17, a post-sealing inspection device 19, a slit forming device 20, a marking device 21, and a punching device 22 are sequentially arranged along the transfer path of the PTP film 7. The post-sealing inspection device 19 includes an illumination device, a camera, and the like, and performs an inspection related to the presence / absence of the tablet 5, the presence / absence of cracks in the tablet 5, contamination of foreign matter, and the like from the protruding side of the pocket portion 2.

  The slit forming device 20 has a function of forming a slit in the PTP film 7. The marking device 21 has a function of attaching a stamp indicating identification information such as a lot number to the PTP film 7. The punching device 22 has a function of punching the PTP film 7 into one PTP sheet.

  A conveyor 25 for transferring the punched PTP sheet 1 to the finished product hopper 24 is provided below the punching device 22. However, when a defective product is determined by the post-injection inspection device 14 or the post-sealing inspection device 19, the PTP sheet 1 that has been determined to be defective is separately discharged by a discharge mechanism (not shown).

  Further, on the downstream side of the punching device 22, a cutting device 27 for cutting the end material 9 remaining after the PTP sheet 1 is punched out of the PTP film 7, and a scrap for storing the cut end material 9. A hopper 28 for use is provided.

  Although the outline of the PTP packaging machine 11 is as described above, the heating device 15 of the pocket portion forming device 12 will be described in detail below.

  As shown in FIGS. 4 and 5, the heating device 15 includes an upper heating block 31 and a lower heating block 32 that are arranged above and below the container film 3, and at least one of the heating blocks 31, 32 moves up and down. It is configured to be possible. Each of the heating blocks 31 and 32 includes a heating convex portion 33 capable of contacting the pocket portion forming region R1 of the container film 3 and a heater (not shown) as a heating unit capable of heating the heating convex portion 33. I have. Further, the heating convex portions 33 of the pair of upper and lower heating blocks 31 and 32 are arranged at positions facing each other with the container film 3 interposed therebetween, and the pocket convex region 33 is formed by the heating convex portions 33 heated by the heater. The pocket portion forming region R1 is sandwiched and configured to be heatable.

  Now, in this embodiment, as shown to FIGS. 4-6 etc., each heating block 31 and 32 is an area | region outside the range of product area | region R2 used as the PTP sheet 1 as a product among the container films 3. FIG. An out-of-range convex portion 35 that can contact the scrap region R3 is provided. In the present embodiment, the out-of-range protrusions 35 are provided corresponding to the four corners of the product region R2 for two PTP sheets 1 that are to be heated at one time by one heating operation of the heating device 15. It has been. In addition, in FIG. 6, the cross section (hatching part) of the heating convex part 33 in the state contact | abutted to the container film 3 and the out-of-range convex part 35 is also illustrated. Furthermore, the site | part with which the dotted pattern of FIG. 6 was attached | subjected has shown the site | part already heated by the heating apparatus 15. FIG.

  Further, when the heating blocks 31 and 32 are viewed in plan, all the heating projections 33 are located at a predetermined distance from the substantially rectangular annular circumscribing line L1 circumscribing all the four out-of-range projections 35. (See FIG. 6). In particular, in this embodiment, in the width direction of the container film 3 that is orthogonal to the transfer direction of the container film 3, a portion of the container film 3 that is heated by the out-of-range convex portion 35 is lateral to the product region R2. It is supposed to be located in.

  In each heating block 31, 32, the protruding length of the out-of-range protruding portion 35 from the heating block body 36 is the same as the protruding length of the heating protruding portion 33 from the heating block body 36. That is, the front end surface of the heating convex portion 33 and the front end surface of the out-of-range convex portion 35 are located on the same virtual plane, and the heating blocks 31 and 32 basically have these front end surfaces and the container film 3. Are maintained so as to be parallel to each other so as to fluctuate vertically (perpendicular to the container film 3). And when heating a pocket part formation area | region R1, if a pair of heating blocks 31 and 32 adjoin with the container film 3 without inclination, the heating convex part 33 will contact | abut with pocket part formation area | region R1, and range. The outer convex portion 35 comes into contact with the scrap region R3.

  Further, the out-of-range convex portion 35 of the pair of upper and lower heating blocks 31 and 32 is disposed at a relative position across the container film 3, and one out-of-range convex portion 35 of the pair of heating blocks 31 and 32 is scrapped. When contacting the region R3, the other out-of-range convex portion 35 supports the scrap region R3. In addition, the out-of-range convex portion 35 is configured to be heated by the heater together with the heating convex portion 33.

  Note that the scrap region R3 is a portion that is separated from the product region R2 that is a product by the punching device 22 and becomes the end material 9 that is discarded or recycled. In this embodiment, it is comprised so that the product area | region R2 adjacent in the transfer direction of the container film 3 may continue, and the scrap area | region R3 is extended along the width direction both sides of the container film 3. FIG. .

  As described in detail above, according to the present embodiment, each heating block 31, 32 protrudes to the same extent as the heating projection 33, and the out-of-range projection 35 that can contact the scrap region R 3 of the container film 3. Is provided. For this reason, for example, as shown in FIG. 7, when the container film 3 is heated, when the upper heating block 31 is tilted and approaches the container film 3, the heating projection 33 comes into contact with the container film 3. Before, the out-of-range convex portion 35 comes into contact with the container film 3. Thereafter, the upper heating block 31 is rotated about the out-of-range convex portion 35 of the upper heating block 31 supported by the out-of-range convex portion 35 of the lower heating block 32 via the container film 3, and a plurality of heating convex portions All 33 will contact the container film 3. Thus, by providing the out-of-range convex portion 35, the heating convex portion 33 that first contacts the container film 3 among the plurality of heating convex portions 33 contacts the container film 3, and then finally touches the container film 3. It is possible to shorten the time until the heating convex portion 33 in contact with the container film 3 contacts. That is, for example, in the case where the upper heating block 31 is inclined by 5 degrees, if there is no out-of-range protrusion 35, the heating protrusion 33 that first contacts the container film 3 has an inclination of the upper heating block 31 of 5 degrees. Until it reaches 0 degree, the abutting is continued as it is pressed against the container film 3 as the axis of the upper heating block 31, and the portion is heated excessively. On the other hand, when the out-of-range convex portion 35 exists, the heating convex portion 33 that first comes into contact with the container film 3 immediately before the inclination of the upper heating block 31 becomes approximately 0 degrees on the container film 3. It will abut. Accordingly, when the heating blocks 31 and 32 are inclined, some of the plurality of pocket portion forming regions R1 that are heated at one time by one heating operation of the heating device 15 in the container film 3 are excessively heated. In some cases, it is possible to suppress the occurrence of “white turbidity” in some cases. As a result, it is possible to improve the appearance quality of the PTP sheet 1 and to suppress various problems such as erroneous detection of “white turbidity” as a foreign substance during inspection.

  Further, in the present embodiment, the out-of-range convex portion 35 is also heated by the heater, and when the heating blocks 31 and 32 are in contact with the container film 3 in an inclined state, the inclined heating block 31 in the container film 3. , There is a possibility that “white turbidity” or the like may occur in a portion that first contacts the out-of-range convex portion 35. However, the “white turbidity” or the like occurs in the scrap region R3, and “white turbidity” or the like does not remain in the PTP sheet 1 as a product. Therefore, the above-described effects such as improving the appearance quality are surely achieved.

  Moreover, in each heating block 31 and 32, all the heating convex parts 33 are arrange | positioned inside the annular outer tangent line L1 circumscribing all the four area | region outer convex parts 35 at a predetermined distance. For this reason, no matter which direction the heating blocks 31, 32 are inclined with respect to the container film 3, the out-of-range convex portion 35 comes into contact with the container film 3 before the heating convex portion 33 comes into contact with the container film 3. Become. Therefore, the occurrence of “white turbidity” or the like in the PTP sheet 1 can be more reliably prevented.

  In addition, in the width direction of the container film 3 that is orthogonal to the transfer direction of the container film 3, a portion of the container film 3 that is heated by the out-of-range convex portion 35 is located on the side of the product region R2. Yes. For this reason, in the transfer direction of the container film 3, the product region R2 can be continued without interposing the scrap region R3 between the adjacent product regions R2. Therefore, productivity can be improved and resources can be saved.

  Further, by providing the out-of-range convex portion 35 so as to be able to come into contact with the container film 3, it is possible to adjust the strength of press contact when the heating blocks 31 and 32 are pressed against the container film 3. . That is, the out-of-range convex portion 35 is provided at a position where it does not come into contact with the container film 3, and when the heating blocks 31 and 32 are inclined, the out-of-range convex portion 35 comes before the heating convex portion 33 comes into contact with the container film 3. Although it is conceivable that the two are in contact with each other, in this case, it is possible to finely adjust the degree of pressure contact of the heating convex portion 33 to the container film 3 and to allow a slight error or deviation. There is a risk of disappearing. On the other hand, by providing the out-of-range convex portion 35 at a position where it can contact the container film 3 as in this embodiment, the out-of-range convex portion 35 is heated to the heating convex portion 33 when the pocket portion forming region R1 is heated. At the same time, it is possible to cause the container film 3 to sink into the container film 3, so that such a concern can be eliminated. Therefore, it is possible to suitably press the heating convex portion 33 against the pocket portion forming region R1 and to heat the pocket portion forming region R1 suitably. Furthermore, since the out-of-range convex portion 35 is heated in the same manner as the heating convex portion 33, such an effect can be achieved more reliably. In addition, the out-of-range convex portion 35 can be prevented from being damaged by interposing the container film 3 instead of directly contacting the out-of-range convex portions 35 with each other.

  In addition, it is not limited to the description content of the said embodiment, For example, you may implement as follows. Of course, other application examples and modification examples not illustrated below are also possible.

  (A) In the said embodiment, although it is actualized in the PTP packaging machine 11 which manufactures the PTP sheet 1 in which the tablet 5 was accommodated in the pocket part 2, an electronic component, an electronic device, You may apply to the blister packaging machine which manufactures the blister pack in which foodstuffs, medical equipment, etc. were stored. Moreover, in the said embodiment, the number, shape, size, etc. of the pocket part 2 are not specifically limited, According to the workpiece | work accommodated in the pocket part 2, it can change suitably. Furthermore, depending on the type of work accommodated in the pocket portion 2, a plurality of workpieces may be accommodated in one pocket portion 2.

  (B) In the above embodiment, four out-of-range convex portions 35 are provided corresponding to the four corners of the product region R2 for two, but the number, shape, arrangement, etc. of the out-of-range convex portions 35 are particularly There is no limitation, and it is sufficient that at least one out-of-range convex portion 35 is provided so as to be able to contact the scrap region R3. For example, the out-of-range convex portion 35 has a circular cross-section, a semi-circular cross-section, etc., the two out-of-range convex portions 35 in the above embodiment are connected to one wall, or the container film 3 is moved in the transfer direction. The scrap region R3 is configured to be interposed between the adjacent product regions R2, the corner of the out-of-range protrusion 35 is subjected to R processing, or the left and right out-of-range protrusions 35 in the width direction of the container film 3 May be shifted in the transfer direction of the container film 3. However, it is desirable to provide a plurality of out-of-range convex portions 35 so as to be able to cope with inclination in multiple directions as much as possible, and the heating convex portion 33 is formed in a region inside the annular circumscribing line L1 circumscribing all the out-of-range convex portions 35. Is more preferably configured to be arranged.

  Moreover, the number of pocket part formation area | region R1 heated at once by one heating operation of the heating apparatus 15 is not specifically limited, It can change suitably. Furthermore, the range heated at one time by one heating operation of the heating device 15 does not necessarily have to be divided in units of the product region R2. For example, the annular outer tangent L1 is the pocket portion 2 in the transfer direction of the container film 3. You may set so that it may become a position shifted by one.

  (C) In the above embodiment, the heating convex portion 33, the out-of-range convex portion 35, and the heater are provided in both the upper heating block 31 and the lower heating block 32, but the upper heating block 31 and the lower heating block 32 It is only necessary that at least one of the heating convex portion 33, the out-of-range convex portion 35, and the heater is provided. On the other hand, when the heating convex portion 33 and the out-of-range convex portion 35 are pressed against the container film 3, the container film 3 should just be comprised so that support is possible. For example, one of the upper heating block 31 and the lower heating block 32 may be configured as a flat plate, and the one may be configured not to be provided with a heater. In addition, when it is a case where the said structure is employ | adopted and the direction comprised in flat form among the pair of heating blocks 31 and 32 inclines with respect to the container film 3, every pocket part formation area R1 which exists in multiple numbers. Although the timing between the pair of heating blocks 31 and 32 is slightly shifted, the presence of the out-of-range protrusion 35 can minimize such shift and prevent the occurrence of “white turbidity” or the like. The same effect as the above-described embodiment is exhibited.

  (D) In the above embodiment, the protrusion lengths of the out-of-range convex portion 35 and the heating convex portion 33 are the same, but they may not be exactly the same in the strict sense (the same is sufficient). That is, when the heating blocks 31 and 32 are tilted by a predetermined angle or more (for example, 5 degrees or more, more preferably 3 degrees or more), the out-of-range projection 35 is formed in the container film 3 before the heating projection 33. It only has to come into contact with. For example, when the heating blocks 31 and 32 are tilted by 1 degree or more, when the out-of-range convex portion 35 is in contact with the container film 3 before the heating convex portion 33, the heating blocks 31 and 32 are slightly tilted and the convex out-of-range Even if the predetermined heating projection 33 abuts on the container film 3 simultaneously with the portion 35 or before the out-of-range projection 35, it is not long until all the heating projections 33 abut on the container film 3. Therefore, it will not cause much trouble.

  Moreover, in the said embodiment, you may comprise so that the protrusion length of the convex part 35 outside one range among a pair of heating blocks 31 and 32 can be changed. In this case, when an error or a deviation occurs in the contact state of the heating convex portion 33 with the container film 3, the protrusion length of the out-of-range convex portion 35 can be adjusted and corrected. Further, by adjusting the protruding length of the out-of-range convex portion 35, the degree of pressure contact of the heating convex portion 33 to the container film 3 can be changed. Accordingly, it is possible to improve convenience and the like.

  In the above embodiment, the protruding length of the heating convex portion 33 of the upper heating block 31 and the protruding length of the heating convex portion 33 of the lower heating block 32 may be the same or different.

  DESCRIPTION OF SYMBOLS 1 ... PTP sheet, 2 ... Pocket part, 3 ... Container film, 4 ... Cover film, 5 ... Tablet, 11 ... PTP packaging machine, 12 ... Pocket part formation apparatus, 13 ... Dosing apparatus, 15 ... Heating apparatus, 16 ... Molding Apparatus, 22 ... Punching device, 31 ... Upper heating block, 32 ... Lower heating block, 33 ... Heating convex part, 35 ... Outer range convex part, L1 ... Circular outer tangent, R1 ... Pocket part formation area, R2 ... Product area , R3 ... scrap area.

Claims (6)

In the process of manufacturing a substantially rectangular blister pack comprising a container film having a pocket portion in which a workpiece is accommodated and a cover film attached to the container film so as to close the opening of the pocket portion. A heating device that heats a pocket portion forming region in which the pocket portion is to be formed in the container film in a previous stage of forming the pocket portion with respect to the belt-shaped container film,
Provided with a pair of heating blocks across the container film,
Wherein at least one among the pair of heating blocks, with contactable convex portion is provided to the front Kipo socket portion formation region of the container film, the heating means is provided for heating the convex portions,
The heating block provided with the convex part is provided with an out-of-range convex part capable of coming into contact with a scrap area that is an area outside the product area that becomes the blister pack as a product of the container film,
On the other of the pair of heating blocks, a first support portion that supports the pocket portion formation region when the convex portion contacts the pocket portion formation region of the container film and heats the contact portion, A second support part is provided for supporting the scrap area when the out-of-range protrusion comes into contact with the scrap area of the container film;
The protruding length of the convex portion outside the range from the heating block main body is approximately the same as the protruding length of the convex portion from the heating block main body. A plurality of the out-of-range convex portions are provided,
When the heating block provided with the convex portion and the out-of-range convex portion is viewed in plan, all the convex portions are arranged in a region inside the annular circumscribed line circumscribing all the out-of-range convex portions. The heating apparatus according to claim 1, wherein:   3. When the heating block provided with the convex part and the convex part outside the range is viewed in plan, the convex part is arranged inside at a predetermined distance from the annular outer tangent line. The heating device according to 1.   In the width direction of the container film perpendicular to the transfer direction of the container film, the portion heated by the out-of-range convex portion of the container film is located on the side of the product region. The heating apparatus according to any one of claims 1 to 3.   The heating device according to any one of claims 1 to 4, wherein the out-of-range convex portion is configured to be able to change a protruding length from the heating block main body.   The blister packaging machine provided with the heating apparatus in any one of the said Claims 1 thru | or 5.

Images