JP4726826B2 - Film connecting apparatus and PTP sheet manufacturing apparatus - Google Patents

Description

  The present invention relates to a film connecting apparatus and a PTP sheet manufacturing apparatus including the film connecting apparatus.

  In general, a PTP sheet (blister sheet) is made of, for example, a container film made of PP (polypropylene) and having a plurality of pocket portions, and an aluminum cover film attached to the container film so as to close the pocket portions. Have. Each pocket contains a tablet.

  When manufacturing such a PTP sheet, a manufacturing apparatus called a PTP packaging machine is used. On the most upstream side of the PTP packaging machine, a belt-like film is wound into a roll. The film wound in a roll shape is conveyed toward the downstream side, and along the film conveyance path, heating means, pocket portion forming means, tablet filling means, sealing means, punching -Cutting means etc. are arranged in order. The belt-like film is heated and softened in the heating means, and the pocket portion for accommodating the material to be filled (workpiece) is formed in the pocket portion forming means. In the subsequent tablet filling means, the work is put in and filled in the pocket portion. Further, in the sealing means, a cover film made of aluminum or the like is attached to a region (flange portion) where no pocket portion is formed in the container film. In the punching / cutting means, the PTP sheet as the final product is cut off by punching or cutting.

  In order for such various processes to be executed smoothly one after another, a mechanism for continuously supplying a strip-shaped film is required on the most upstream side of the PTP packaging machine. As described above, on the uppermost stream side of the production apparatus, a belt-like film is wound in a roll shape, and the feeding end side is guided to the heating means through the film supply means composed of a drive roller or the like. Is done. In order to continuously supply the film, when the film wound in the roll shape is consumed, the end portion of the film is connected to the belt-shaped start end portion wound in another roll shape. There is a need to.

Conventionally, as such a connecting device, in a state where the end of the film and the belt-like starting end wound in another roll shape are abutted, the adhesive tape is applied so as to straddle both films, and both films are attached. A film connecting device to be connected has been proposed (see, for example, Patent Document 1).
JP 2004-67375 A

  By the way, when forming the pocket portion, a method of pressing the film with at least a plug, such as plug molding or plug assist pressure forming, is generally employed. In this case, because of the continuous supply of the film, the pocket portion is formed by pressing with the plug even in the connection portion by the adhesive tape (of course, the connection portion is excluded from the product later).

  However, the conventional connecting device has a structure in which an adhesive tape is applied from the outside of the pocket portion (the side of the pocket portion to be formed later). For this reason, as shown in FIG. 13, when the pocket portion 100 bulges to one side at the connection site, the butted portion of both films 101 and 102 is opened, and the tip surface of the plug 103 is bonded. There is a risk of contact with the adhesive surface of the tape 104. In this case, the adhesive of the adhesive tape 104 may adhere to the tip surface of the plug 103, and there is a concern that the adhesive may become a foreign substance in a regular pocket portion that will be formed later. Is done.

  The present invention has been made in view of the above circumstances, and includes a film connection device that can avoid a situation in which the adhesive of the adhesive tape becomes a foreign matter in the pocket portion, and the film connection device. It aims at providing the manufacturing apparatus of a PTP sheet.

  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. Manufactures a PTP sheet that has a bulging pocket on one side, a container film filled with tablets inside the pocket, and a cover film attached to the container film so as to close the pocket Used in PTP sheet manufacturing equipment for
When the strip-shaped film wound into a roll as the raw material of the container film supplied to the downstream side is consumed, the end of the film and the strip-shaped film wound into another roll In the film connection device that connects both films by pasting the adhesive tape so as to straddle both films in the state where the starting end is abutted,
A supporting means capable of supporting both the films on the one surface on which the pocket portion is formed;
A sticking means for sticking the adhesive tape so as to straddle the two films on a surface opposite to the one surface in a state where the two films are supported by the supporting means. Film connection device.

  According to the means 1, when the strip-shaped film wound in the roll shape supplied to the downstream side is consumed, the end of the film and the leading end of the strip-shaped film wound in another roll shape are consumed. In a state where the two are in contact with each other, an adhesive tape is applied so as to straddle both films. In this way, since the edges of the two films are connected in a state where they are abutted without overlapping, the thickness of the connection portion does not have to be extremely increased.

  In addition, due to the structure of the PTP sheet manufacturing apparatus, the pocket portion is generally formed by a plug or the like at the connection site. In the means 1, both films are formed on one surface where the pocket portion is formed. The adhesive tape is pasted by the pasting means so as to straddle both films on the surface opposite to the one side while being supported by the supporting means. For this reason, an adhesive tape will be affixed from the inside of a pocket part (the side opposite to the side which the pocket part formed later swells). Therefore, when the pocket portion is formed to bulge to one side at the connection site, even if the butted portions of both films are opened, the tip end surface of the plug may come into contact with the adhesive surface of the adhesive tape. Absent. Therefore, it is possible to avoid the adverse effect caused by the adhesive of the adhesive tape adhering to the tip end surface of the plug, that is, the situation where the adhesive becomes a foreign substance in the regular pocket portion to be formed later. it can.

Mean 2. Manufactures a PTP sheet that has a bulging pocket on one side, a container film filled with tablets inside the pocket, and a cover film attached to the container film so as to close the pocket For the device to do
Used in a PTP sheet manufacturing apparatus configured to be formed so that the pocket portion bulges to the one side by pressing a strip-shaped film as a raw material of the container film at least with a plug,
When the strip-shaped film wound into a roll supplied to the downstream side is consumed, the end of the film is in contact with the start of the strip-shaped film wound into another roll In a film connection device that connects both films by sticking an adhesive tape across both films,
A supporting means capable of supporting both the films on the one surface on which the pocket portion is formed;
A sticking means for sticking the adhesive tape so as to straddle the two films on a surface opposite to the one surface in a state where the two films are supported by the supporting means. Film connection device.

  The means 2 basically has the same effects as the means 1.

Means 3. Film receiving means for supporting the two films on the other surface opposite to the one surface in a state where the two films are overlapped with each other;
In a state where the two films are supported by the film receiving means, the two films are cut from the one surface at the overlapped portion so that the film ends and is wound into another roll shape. The film connecting device according to the means 1 or 2, further comprising a cutting means that can be brought into a state of being in contact with the starting end of the strip-shaped film.

  According to the means 3, both the films are cut by the cutting means at the overlapped portion so that the end of the film and the start of the band-like film wound in another roll shape are brought into contact with each other. Can do. For this reason, it is not necessary to use a position adjusting means or the like that can perform precise alignment in order to bring both films into a butted state, and the apparatus can be prevented from becoming complicated and large. Further, by applying the adhesive tape from the side opposite to the side on which the cutting means is provided, the connection device can be made more compact.

  Means 4. 4. The film connecting apparatus according to claim 3, wherein when the cutting is performed by the cutting means, both the films are also supported by the supporting means on the one surface.

  According to the means 4, when the film is cut by the cutting means, the surfaces of both films are supported by the film receiving means and the supporting means. In other words, both films are sandwiched between the film receiving means and the supporting means. For this reason, the position of the film is less likely to occur during cutting, and more accurate cutting can be realized.

  Means 5. End material separating means for forcibly separating the end material and the belt-like film from each other to prevent the end material of the film generated by the cutting by the cutting means from being supplied downstream together with the belt-like film. The film connecting apparatus according to the means 3 or 4, characterized by comprising:

  According to the means 5, the end material separating means forcibly separates the end material of the film generated by the cutting by the cutting means and the strip-shaped film, so that the end material moves downstream together with the strip-shaped film. The situation of being supplied can be prevented. As a result, it is possible to prevent various problems caused by the end material being guided to each means constituting the PTP sheet manufacturing apparatus.

  Means 6. 6. The film connecting apparatus according to claim 5, wherein the end material separating means is a suction means provided in at least one of the film receiving means and the support means.

  According to the means 6, the end material is sucked by the suction means, so that the end material is prevented from being supplied to the downstream side together with the belt-like film. Further, since the suction means is provided on at least one of the film receiving means and the support means, the apparatus can be further downsized as compared with a case where a separate suction device is provided outside.

  Mean 7 7. The film connecting apparatus according to any one of means 3 to 6, further comprising end material accommodating means for accommodating an end material of the film generated by the cutting by the cutting means.

  According to the means 7, the edge material of the film generated by cutting is accommodated by the edge material accommodation means. For this reason, the manufacturing apparatus of a PTP sheet including a connection apparatus is orderly, and the maintenance property can be improved.

  Means 8. An apparatus for producing a PTP sheet comprising the film connecting apparatus according to any one of means 1 to 7.

Means 9. An apparatus for producing a PTP sheet comprising the film connecting apparatus according to any one of means 1 to 7,
Heating means for heating the belt-like film;
A pocket portion forming means for forming a pocket portion so as to bulge to the one side by pressing at least the plug with the belt-like film in a softened state by the heating means;
Tablet filling means for filling the pocket portion with a tablet;
Sealing means for attaching a cover film to the container film so as to close the pocket filled with the tablet;
An apparatus for producing a PTP sheet, comprising: a cutting / punching means for cutting or punching the PTP film to which the cover film is attached in units of PTP sheets.

  Like the means 8 and 9, the technical idea of each means mentioned above can also be embodied in the manufacturing apparatus of a PTP sheet.

  Means 10. The tablet filling means is for dropping and filling tablets into a pocket portion of a belt-like film conveyed in a horizontal state, and the distance between the tablet filling means and the non-pocket portion of the belt-like film is the belt-like film. The apparatus for producing a PTP sheet according to means 9, wherein the apparatus is set shorter than the sum of the thickness of the film and the thickness of the adhesive tape.

  When the distance between the tablet filling means and the non-pocket portion of the belt-like film is set shorter than the sum of the thickness of the belt-like film and the thickness of the adhesive tape as in the means 10, the films are overlapped. If the adhesive tape is pasted in the state, the thickness of the connecting portion increases, and there is a concern that the connecting portion may be caught when passing through the tablet filling means. In this regard, as in each of the above-mentioned means, since the edges of both films are connected in a state of being abutted without overlapping each other, the thickness of the connection portion does not increase, and there is a concern about the above-described catching. Can be wiped away.

  Hereinafter, an embodiment will be described with reference to the drawings. As shown in FIGS. 1 and 2, a PTP sheet (blister sheet) 1 is made of, for example, PP (polypropylene), a container film 3 having a plurality of pocket portions 2, and a container film so as to close the pocket portions 2. 3 and a cover film 4 made of aluminum attached to 3. Each pocket portion 2 contains one tablet 5. And such a PTP sheet 1 is manufactured with the dedicated PTP packaging machine 10 (PTP sheet manufacturing apparatus).

  Then, next, the outline of the PTP packaging machine 10 for manufacturing the PTP sheet 1 is demonstrated based on FIG.

  On the most upstream side of the PTP packaging machine 10, a strip-shaped packaging film 3A wound as a raw material for the container film 3 is wound into a roll. As described above, the packaging film 3A is made of a relatively hard synthetic resin such as PP and has a predetermined rigidity (may be made of other thermoplastic resin materials such as PVC), and is transparent or translucent. Presents.

  The PTP packaging machine 10 includes a buffer unit 11, and the packaging film 3 </ b> A wound in a roll shape is continuously supplied until reaching the buffer unit 11, and on the downstream side of the buffer unit 11. In this case, at least until the pocket portion 2 is formed, it is intermittently transferred.

  A heating means 12 and a pocket portion forming means 13 are arranged side by side along the transfer path of the packaging film 3A on the downstream side of the buffer means 11. The pocket portion 2 is formed by the heating means 12 and the pocket portion forming means 13. In the present embodiment, the pocket forming means 13 includes a male mold 15 having a plurality of plugs 14.

  And in the said heating means 12, the site | part corresponding to the pocket part 2 is partially heated among 3A for packaging films. Next, in the pocket portion forming means 13, with the packaging film 3A partially softened, the packaging film 3A temporarily sandwiched and fixed in a horizontal state is below the packaging film 3A. When the waiting male mold 15 (plug 14) is moved upward, the heat softened portion is pushed upward, and thereby the pocket portion 2 is formed in the packaging film 3A (see FIG. 11). Thus, in this embodiment, the pocket part 2 is shape | molded by what is called a "plug shaping | molding method." In addition, the said pocket part 2 is shape | molded in the interval between transfer operation | movement of 3 A of packaging films.

  A tablet loading device 16 is provided as a tablet filling means for automatically filling the tablet 5 with the tablet 5 along the transfer path of the packaging film 3A in which the pocket 2 is formed. In the present embodiment, a known cylindrical tablet supply chute is used as the tablet loading device 16. In the present embodiment, as shown in FIG. 10, the tablet 5 is dropped and filled from the tablet loading device 16 into the pocket portion 2 of the strip-shaped packaging film 3A conveyed in a horizontal state. The distance CL between the lower end of the device 16 and the non-pocket part (general surface) of the packaging film 3A is the sum of the thickness FT of the packaging film 3A and the thickness TT of the adhesive tape TP described later (see FIG. 9B). It is set shorter than (FT + TT).

  In addition, an inspection device 17 for inspecting the presence or absence of foreign matter is provided along the transfer path of the packaging film 3A in which the tablets 2 are filled in the pocket portion 2, and further on the downstream side by the heating roll 19 A film receiving roll 18 for adhering the belt-like cover film 4 by heating and pressing is disposed. In the present embodiment, the heating roll 19 and the film receiving roll 18 constitute a sealing means, and on the downstream side from this, the PTP film 6 (FIG. 1) in which the packaging film 3A and the cover film 4 are integrated. (B) is transferred.

  Further, an inspection device 21 for inspecting the presence or absence of foreign matter is disposed along the transfer path of the PTP film 6 downstream of the film receiving roll 18. The inspection device 21 performs an inspection from the surface opposite to the inspection device 17 described above.

  Downstream of the inspection device 21, along the transfer path of the PTP film 6, a slit forming device 22 for forming slits, a stamping device 23 for marking identification information such as a lot number, and the PTP film 6 are punched in one PTP sheet. A sheet punching device 24 is sequentially disposed. The sheet punching device 24 punches the PTP sheet 1 by the fixed mold 31 and the movable mold 32. A finished product hopper 25 for storing the falling PTP sheet 1 is provided below the sheet punching device 24.

  Although the outline of the PTP packaging machine 10 is as described above, the strip-shaped packaging film 3A (3B) is continuously supplied on the most upstream side of the PTP packaging machine 10 so that the various processes described above are appropriately performed. A mechanism to do this is needed. Therefore, in addition to the packaging film 3A wound in a roll shape, another packaging film 3B wound in a roll shape is prepared in preparation for the consumption of the packaging film 3A. . Then, when the packaging film 3A is consumed, the adhesive tape TP extends over both the films 3A and 3B in a state where the end of the packaging film 3A and the start of another packaging film 3B are abutted with each other. The two films 3A and 3B are connected by pasting. For this purpose, a film connecting device 51 is provided on the upstream side of the buffer means 11.

  Below, the said film connection apparatus 51 is demonstrated more concretely based on FIG. However, illustrations of mechanisms and the like for supporting each member (for example, walls and frames) are omitted from the viewpoint of preventing complication of the drawings.

  As shown in FIG. 4, the film connecting apparatus 51 includes a pair of front and rear fixing plates 52A and 52B at a height substantially along the transfer path of the packaging films 3A and 3B. Further, receiving plates 54A and 54B as film receiving means are rotatably supported by the fixing plates 52A and 52B via support shafts 53A and 53B. The receiving plates 54A and 54B can be rotated (switched) between a standby position shown in the figure and a receiving position shown in FIG. 5, for example. When the receiving plates 54A and 54B are in the receiving position, the upper surface thereof is exactly the same height as the transfer path of the packaging films 3A and 3B, so that the packaging films 3A and 3B can be supported from the lower surface side.

  Rubber members 55A and 55B for more reliably supporting (holding) the packaging films 3A and 3B are provided on the surfaces of the receiving plates 54A and 54B on which the packaging films 3A and 3B can come into contact. . Further, a resin plate 57 made of a hard resin for receiving a cutter 56, which will be described later, is provided at the tip of one receiving plate 54A.

  The receiving plates 54A and 54B are provided with a plurality of through holes, and push pins 58A and 58B are inserted into the through holes so as to be able to appear and retract. Further, stoppers 59A and 59B for receiving the receiving plates 54A and 54B are fixed to the lower surfaces of the fixing plates 52A and 52B. When the receiving plates 54A and 54B are in the receiving position shown in FIG. 5, the push pins 58A and 58B are brought into a state in which their tip ends are immersed inside the rubber members 55A and 55B by their own weight. On the other hand, when the receiving plates 54A and 54B are at the standby position shown in FIG. 4, the proximal ends of the push pins 58A and 58B abut against the stoppers 59A and 59B, and the distal ends of the push pins 58A and 58B are rubber The members 55A and 55B protrude outward.

  Further, below the receiving plates 54A and 54B, end material storage boxes 61A and 61B as end material storage means are provided corresponding to the standby positions. The receiving plates 54A and 54B are provided with suction holes (not shown) that open on the surfaces of the rubber members 55A and 55B and communicate with the support shafts 53A and 53B. An end material 99 which will be described later is sucked through.

  On the other hand, also above the packaging films 3A and 3B, support plates 63A and 63B as support means are rotatably supported via support shafts 62A and 62B. The support plates 63A and 63B can be rotated (switched) between a standby position shown in FIG. 4 and a support position shown in FIG. 5, for example. When the support plates 63A and 63B are in the support position, the lower surfaces thereof are almost the same height as the transfer path of the packaging films 3A and 3B, so that the packaging films 3A and 3B can be supported from the upper surface side. That is, the packaging films 3A and 3B are sandwiched between the receiving plates 54A and 54B and the support plates 63A and 63B.

  Rubber members 64A and 64B for more reliably supporting (holding) the packaging films 3A and 3B are also provided on the surfaces of the support plates 63A and 63B on which the packaging films 3A and 3B can come into contact. . Further, a cutter 56 as a cutting means is provided in a gap portion between the both support plates 63A and 63B. The cutter 56 is driven in a vertical direction and a depth direction of the paper (the packaging films 3A and 3B) by a driving means (not shown). It can be moved in the width direction).

  Each of the support plates 63A and 63B is also provided with a suction hole (not shown) that opens on the surface of the rubber member 64A and 64B and communicates with the support shafts 62A and 62B. The end material 99 which will be described later is sucked. In the present embodiment, suction means and forced separation means are configured by suction holes provided in the receiving plates 54A and 54B and the support plates 63A and 63B, a suction mechanism (not shown), and the like (for example, a vacuum pump). Yes.

  Further, below the transfer path of the packaging films 3A and 3B, a tape support base 65 is provided to be movable up and down at an intermediate portion of the pair of receiving plates 54A and 54B. Further, in the vicinity of the tape support base 65, an adhesive tape gripping means, an adhesive tape cutting means, etc. (not shown) are provided. Under such a configuration, a predetermined length of the adhesive tape TP provided with an adhesive layer on the upper surface can be placed on the tape support 65. The rotating operation of the receiving plates 54A and 54B and the supporting plates 63A and 63B and the raising and lowering operation of the tape support 65 can be realized by any driving means such as a motor, a cam mechanism, or a cylinder (not shown). In the present embodiment, the sticking means is constituted by the tape support base 65 and the drive means for driving it. Moreover, each said drive means is controlled by the control apparatus which is not shown in figure. The control device is configured as a so-called computer system equipped with a CPU, RAM, ROM, I / O, etc., and implements various controls based on the programs stored in the ROM based on the detection results from each sensor. Is possible.

  Next, operation | movement of the film connection apparatus 51 at the time of connecting packaging film 3A, 3B with the adhesive tape TP is demonstrated.

  As described above, when the packaging film 3A is consumed, the end of the packaging film 3A is connected to the start of another packaging film 3B, and the packaging film can be continuously supplied. did. Here, during the connection period by the film connecting device 51, the delivery of another packaging film 3B is virtually impossible, and the delivery of another packaging film 3B is stopped. On the other hand, it is necessary to supply the packaging film 3A even during the connection period. In order to enable such continuous supply, in this embodiment, when the remaining amount of winding of the packaging film 3A is confirmed to be equal to or less than a predetermined amount by a sensor (not shown) or the like, the amount of feeding is temporarily Is increased (the feeding speed is increased). Thereby, more buffering film 3 </ b> A is stored in the buffer means 11. The buffer means 11 may be constituted by a dancer roller group (not shown), or may be constituted by a storage box or the like that can be stored in a relaxed state. And it is the structure by which the connection of both films 3A and 3B is performed during the period when the stored packaging film 3A is drawn out.

  Now, in this embodiment, the connection of packaging film 3A, 3B is performed after the completion of storage of the predetermined amount of said packaging film 3A in the buffer means 11. FIG. That is, first, as shown in FIG. 4, the end portion of the packaging film 3 </ b> A is positioned at a position where it can be cut by the cutter 56 (for example, a position on the receiving plate 54 </ b> B at the receiving position). In addition, a starting end portion of another packaging film 3B wound in a roll shape is pulled out by a chuck or the like (not shown), and the starting end portion is positioned so as to overlap the end portion of the packaging film 3A. . In this example, the starting end portion of another packaging film 3B is positioned so as to overlap the end portion of the packaging film 3A. The end of the packaging film 3A may be positioned so as to overlap the start end of the packaging film 3B.

  Further, as shown in FIG. 5, the receiving plates 54A and 54B are rotated and switched from the standby position until then to the receiving position. Thereby, packaging film 3A, 3B is supported from the lower surface side.

  Further, as shown in the figure, the support plates 63A and 63B are rotated and switched from the standby position until then to the support position. Thereby, packaging film 3A, 3B is supported also from an upper surface side. That is, the packaging films 3A and 3B are sandwiched between the receiving plates 54A and 54B (the rubber members 55A and 55B) and the support plates 63A and 63B (the rubber members 64A and 64B).

  The receiving plates 54A and 54B may be switched to the receiving position in advance when the starting end portion of the other packaging film 3B is pulled out and positioned on the packaging film 3A. After the films 3A and 3B are positioned, the receiving plates 54A and 54B and the supporting plates 63A and 63B may be switched to the receiving position and the supporting position almost simultaneously.

  Next, as shown in the figure, the cutter 56 is moved down and moved from the front side of the paper to the depth direction, whereby the two packaging films 3A and 3B that are superimposed are cut in the width direction. Is done. At this time, the cutting stress by the cutter 56 is received by the receiving plate 54A. More specifically, the cutting is performed such that the cutting edge of the cutter 56 contacts the resin plate 57. This prevents the rubber members 55A, 55B, 64A, and 64B from being damaged and suppresses a situation in which the blade edge of the cutter 56 hits the metal and spills.

  Further, the suction by the suction means is started together with the cutting. Thereby, the end material 99 generated by the cutting is adsorbed to the receiving plate 54B and the supporting plate 63A (or the receiving plate 54A and the supporting plate 63B).

  Further, as shown in FIGS. 6 (a) and 6 (b), the receiving plates 54A and 54B are rotated and switched from the standby position until then to the receiving position. As a result, the end of the packaging film 3A and the starting end of another packaging film 3B are brought into contact with each other, and the sucked end material 99 is separated from the end of the packaging film 3A (or 3B). It is moved downward while adsorbed to the receiving plate 54B (or 54A). Then, when the receiving plates 54A and 54B are switched to the standby position, the suction is released. As a result, the end material 99 that has been adsorbed on the receiving plate 54B (or 54A) falls freely and is accommodated in the end material accommodating foil 61B (or 61A) positioned below.

  Here, the receiving plates 54A and 54B are provided with push pins 58A and 58B. When the receiving plates 54A and 54B are switched to the standby position, the base ends of the push pins 58A and 58B are arranged on the stoppers 59A and 58B. 59B, the front ends of the push pins 58A, 58B protrude outward from the rubber members 55A, 55B. Therefore, the end material 99 is forcibly separated from the receiving plate 54B (or 54A). Accordingly, a situation in which the end material 99 remains in close contact with the rubber member 55B (or 55A) after the suction is released is avoided.

  Next, the tape support base 65 is raised. Needless to say, the adhesive tape TP having a predetermined length is placed on the upper surface of the tape support 65 during the ascent. Then, as shown in FIG. 7, the tape support 65 is raised and pressed against the support plates 63A and 63B, so that it adheres to the lower surfaces of the packaging films 3A and 3B that are in abutting state. Tape TP is affixed so that it may straddle both films 3A and 3B.

  Thereafter, the tape support base 65 is lowered as shown in FIG. 8, and the support plates 63A and 63B are rotated and switched to the standby position as shown in FIG. Thereby, the connection of the film is completed, and as shown in FIG. 9 (b), the connection site where the adhesive tape TP is pasted so as to straddle the lower surfaces of the packaging films 3A and 3B in the butted state, It can be transported. Therefore, after that, another packaging film 3B is fed out and can be supplied to the downstream side. When the packaging film 3B is consumed, the starting end of another packaging film is drawn out (at the place where the packaging film 3A is wound and supported) in the same manner as described above. Connection work is performed.

  As described above in detail, according to this embodiment, when the packaging film 3A wound in a roll shape supplied to the downstream side is consumed, the end of the film 3A and another roll shape are consumed. The adhesive tape TP is pasted so as to straddle both the films 3A and 3B in the “abutted state” with the starting end of the strip-shaped packaging film 3B wound around the film. In this way, since the edges of the packaging films 3A and 3B are connected in a state where they are abutted without overlapping each other, the thickness of the connection portion does not have to be extremely increased. Therefore, as in this embodiment, the distance CL between the lower end of the tablet input device 16 and the non-pocket portion (general surface) of the packaging film 3A is the thickness FT of the packaging film 3A and the thickness TT of the adhesive tape TP. Even if it is set to be shorter than the sum (FT + TT), it is possible to dispel the concern that the connection part of the packaging films 3A and 3B will be caught when passing through the tablet loading device 16. .

  Moreover, in this embodiment, the plug 14 is pushed up also in the connection site | part of the said adhesive tape TP, and it has the structure by which the pocket part 2 is formed. Under such a configuration, in the present embodiment, when connecting the packaging films 3A and 3B, as shown in FIG. 7, for example, the support plate 63A, In the state supported by 63B, the adhesive tape TP is stuck by pressing the tape support base 65 so as to straddle both the films 3A and 3B on the surface opposite to the one surface (the lower surface in the figure). For this reason, adhesive tape TP will be affixed from the inside of the pocket part 2 (the side opposite to the side where the pocket part 2 formed later swells). Therefore, as shown in FIG. 12, when the plug 14 is pushed up at the connecting portion and the pocket portion 2 is formed to bulge out to one side, even if the butted portions of both the films 3A and 3B are opened. The tip end surface of the plug 14 does not come into contact with the adhesive surface of the adhesive tape TP. Therefore, an adverse effect caused by the adhesive of the adhesive tape TP adhering to the distal end surface of the plug 14, that is, a situation where the adhesive becomes a foreign matter in the regular pocket portion 2 to be formed later. Can be avoided.

  Further, in the present embodiment, the packaging film 3A, 3B is cut by the cutter 56 at the overlapping portion so that the end of the packaging film 3A and the start of another packaging film 3B are abutted. It can be. For this reason, it is not necessary to separately use a position adjusting means or the like that can accurately align the two films so that the two films are brought into a butted state, and the apparatus can be prevented from becoming complicated and large.

  In the present embodiment, the adhesive tape TP is pasted from the side (the lower side of the packaging films 3A and 3B) opposite to the side where the cutter 56 is provided (the upper side of the packaging films 3A and 3B). For this reason, the film connection device 51 can be further downsized.

  At the same time, when being cut by the cutter 56, the packaging films 3A and 3B are received by the receiving plates 54A and 54B (the rubber members 55A and 55B) and the support plates 63A and 63B (the rubber members 64A and 64B). It is pinched. For this reason, the positional displacement of the packaging films 3A and 3B hardly occurs during cutting, and more accurate cutting can be realized.

  Further, the end material 99 generated by the cutting by the cutter 56 is forcibly separated from the packaging films 3A and 3B at positions below the fixing plates 52A and 52B that are relatively difficult to maintain. Thereby, prevention of the situation where the end material 99 will be supplied downstream with a strip | belt-shaped film is achieved. In addition, it is possible to simplify maintenance work such as cleaning.

  In addition, you may implement as follows, for example, without being limited to the content of description of embodiment mentioned above.

  (A) In the above embodiment, the pocket portion forming means 13 employs so-called plug molding to form the pocket portion 2, but the formation method of the pocket portion 2 is not necessarily limited to plug molding. For example, various molding methods using at least a plug, such as a plug-assisted pressure molding method, can be employed.

  (B) In the above embodiment, the case where the two packaging films 3A and 3B are provided is embodied, but a configuration including three or more packaging films may be employed.

  (C) In the above embodiment, when the pocket portion 2 is formed to bulge to the upper side of the figure, the adhesive is applied from the lower side of the packaging films 3A and 3B while supporting at least the upper surfaces of the packaging films 3A and 3B. The structure which sticks tape TP is adopted. On the other hand, the vertical relationship may be reversed. For example, when the pocket portion 2 is formed to bulge on the lower side of the figure, the adhesive tape TP is applied from the upper side of the packaging films 3A and 3B while supporting at least the lower surface of the packaging films 3A and 3B. A configuration may be adopted.

  (D) In the above embodiment, the packaging films 3A and 3B are sandwiched between the receiving plates 54A and 54B and the supporting plates 63A and 63B when cut by the cutter 56. At least the receiving plate What is necessary is just to be supported by 54A, 54B, and does not necessarily need to be clamped.

  (E) The rubber members 55A, 55B, 64A, and 64B in the above embodiment may be omitted as appropriate, or a resin material (for example, a soft resin material such as a thermoplastic elastomer) may be used instead of rubber. It is good.

  (F) If the generation of the end material 99 by cutting the cutter 56 is on one side, that is, if it is certain that the upper and lower relationship of the overlapping of the packaging films 3A and 3B is constant, the other side The suction means, the end material storage boxes 61A and 61B, and the like may be omitted.

  (G) In the above embodiment, the end material adsorbed on the support plates 63A and 63B is not particularly mentioned, but an end material storage box (not shown) may be provided in the same manner as the lower side. It is good also as removing a roll-shaped packaging film manually in connection with newly installing.

  (H) The cutting process by the cutter 56 may be omitted as long as the packaging films 3A and 3B can be accurately positioned in the butted state.

  (I) In the said embodiment, although it is supposed that the adhesive tape TP is stuck by raising the tape support stand 65, it is good also as sticking by another method. For example, the adhesive tape TP may be configured so that both ends are held by a chuck or the like and attached.

  (J) In the above embodiment, the distance CL between the lower end of the tablet loading device 16 and the non-pocket portion (general surface) of the packaging film 3A is the sum of the thickness FT of the packaging film 3A and the thickness TT of the adhesive tape TP. Although it is set shorter than (FT + TT), it does not necessarily have such a configuration, and the distance CL is the sum of the thickness FT of the packaging film 3A and the thickness TT of the adhesive tape TP described later ( It may be longer than (FT + TT). The tablet loading device 16 may not be a chute type, and for example, a rotary drum type tablet loading device may be used.

(A) is a perspective view which shows a PTP sheet, (b) is a perspective view which shows a PTP film. It is a partial expanded sectional view which shows a PTP sheet. It is a schematic diagram for demonstrating schematic structure of a PTP packaging machine. It is a schematic diagram for demonstrating a film connection apparatus. (A) is a schematic diagram which shows the one aspect | mode of operation | movement of a film connection apparatus, (b) is an enlarged view which shows (alpha) part of (a). (A) is a schematic diagram which shows the one aspect | mode of operation | movement of a film connection apparatus, (b) is an enlarged view which shows (alpha) part of (a). It is a schematic diagram which shows the one aspect | mode of operation | movement of a film connection apparatus. It is a schematic diagram which shows the one aspect | mode of operation | movement of a film connection apparatus. (A) is a schematic diagram which shows the one aspect | mode of operation | movement of a film connection apparatus, (b) shows the film connection part by an adhesive tape typically (The film and the adhesive tape are described more thickly than the actual) expansion It is sectional drawing. It is a cross-sectional schematic diagram explaining the positional relationship of a tablet charging device and a packaging film. It is an expanded sectional view which shows the film for packaging at the time of the pocket shaping | molding by a plug. It is an expanded sectional view which shows the connection part of both the films for packaging at the time of the pocket shaping | molding by a plug. It is an expanded sectional view for demonstrating the conventional malfunction.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... PTP sheet, 2 ... Pocket part, 3 ... Container film, 3A, 3B ... Packaging film, 4 ... Cover film, 5 ... Tablet, 10 ... PTP packaging machine as a manufacturing apparatus of a PTP sheet, 12 ... Heating means, DESCRIPTION OF SYMBOLS 13 ... Pocket part formation means, 14 ... Plug, 16 ... Tablet input device as tablet filling means, 18 ... Film receiving roll which comprises sealing means, 19 ... Heating roll which comprises sealing means, 24 ... Cutting and punching means Constructing sheet punching device, 51 ... film connecting device, 54A, 54B ... receiving plate as film receiving means, 56 ... cutter as cutting means, 61A, 61B ... end material containing box as end material containing means, 63A, 63B ... support plate as support means, 65 ... tape support base constituting pasting means, 99 ... end material, TP ... adhesive tape.

Claims (9)

Manufactures a PTP sheet that has a bulging pocket on one side, a container film filled with tablets inside the pocket, and a cover film attached to the container film so as to close the pocket Used in PTP sheet manufacturing equipment for
When the strip-shaped film wound into a roll as the raw material of the container film supplied to the downstream side is consumed, the end of the film and the strip-shaped film wound into another roll In the film connection device that connects both films by pasting the adhesive tape so as to straddle both films in the state where the starting end is abutted,
A supporting means capable of supporting both the films on the one surface on which the pocket portion is formed;
In a state where the both films are supported by the support means, a pasting means for pasting the adhesive tape so as to straddle both films on the surface opposite to the one surface ;
Film receiving means for supporting the two films on the other surface opposite to the one surface in a state where the two films are overlapped with each other;
In a state where the two films are supported by the film receiving means, the two films are cut from the one surface at the overlapped portion so that the film ends and is wound into another roll shape. Cutting means that can be in a state of abutting the beginning of the strip-shaped film ,
A film connecting apparatus , wherein the sticking means is provided on the opposite side of the cutting means through the film. Manufactures a PTP sheet that has a bulging pocket on one side, a container film filled with tablets inside the pocket, and a cover film attached to the container film so as to close the pocket For the device to do
Used in a PTP sheet manufacturing apparatus configured to be formed so that the pocket portion bulges to the one side by pressing a strip-shaped film as a raw material of the container film at least with a plug,
When the strip-shaped film wound into a roll supplied to the downstream side is consumed, the end of the film is in contact with the start of the strip-shaped film wound into another roll In a film connection device that connects both films by sticking an adhesive tape across both films,
A supporting means capable of supporting both the films on the one surface on which the pocket portion is formed;
In a state where the both films are supported by the support means, a pasting means for pasting the adhesive tape so as to straddle both films on the surface opposite to the one surface ;
Film receiving means for supporting the two films on the other surface opposite to the one surface in a state where the two films are overlapped with each other;
In a state where the two films are supported by the film receiving means, the two films are cut from the one surface at the overlapped portion so that the film ends and is wound into another roll shape. Cutting means that can be in a state of abutting the beginning of the strip-shaped film ,
A film connecting apparatus , wherein the sticking means is provided on the opposite side of the cutting means through the film. The support means is provided above the film, and the sticking means is provided below the film,
Further, in order to prevent the end material of the film generated by the cutting by the cutting means from being supplied to the downstream side together with the band-shaped film, the edge material separation for forcibly separating the end material from the band-shaped film. The film connecting device according to claim 1 or 2, wherein the means is provided below the film. Said end member separating means, a film connecting device according to claim 3, wherein the film is a suction means provided in the receiver stage. Wherein when it is cut by the cutting means at said support means, said according to any one of claims 1 to 4, characterized in that both films as also supported in the one surface Film connection device. Film connecting device according to any one of claims 1 to 5, characterized in that a end material accommodating means for accommodating the end material of the film generated by cleavage by said cutting means. The manufacturing apparatus of the PTP sheet which comprises the film connection apparatus of any one of Claims 1 thru | or 6 . An apparatus for manufacturing a PTP sheet comprising the film connecting apparatus according to any one of claims 1 to 6 ,
Heating means for heating the belt-like film;
A pocket portion forming means for forming a pocket portion so as to bulge to the one side by pressing at least the plug with the belt-like film in a softened state by the heating means;
Tablet filling means for filling the pocket portion with a tablet;
Sealing means for attaching a cover film to the container film so as to close the pocket filled with the tablet;
An apparatus for producing a PTP sheet, comprising: a cutting / punching means for cutting or punching the PTP film to which the cover film is attached in units of PTP sheets. The tablet filling means is for dropping and filling tablets into a pocket portion of a belt-like film conveyed in a horizontal state, and the distance between the tablet filling means and the non-pocket portion of the belt-like film is the belt-like film. The apparatus for producing a PTP sheet according to claim 8 , wherein the apparatus is set to be shorter than the sum of the thickness of the film and the thickness of the adhesive tape.

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