KR20170002669A - Pocket forming device and blister packaging machine - Google Patents

Abstract

Provided are a pocket molding apparatus and a blister packaging machine capable of suppressing the mixing of foreign matters into a pocket portion when forming a pocket portion with respect to a packaging film using a plug. The pocket molding apparatus 6 includes a chamber 50 having an internal space into which high-pressure air is introduced, a tubular fixed shaft portion 53a fixed to the chamber 50, A movable shaft portion 60 for displacing the plug 63 in the chamber 50 and a movable shaft portion 60 which is provided so as to be capable of relative displacement at the outer peripheral side of the fixed shaft portion 53a and which is fixed to the movable shaft portion 60, Shaped outer cylinder 55 and an air cylinder 72 for relative displacement of the outer cylinder 55 and the movable shaft portion 60 with respect to the fixed shaft portion 53a and the outer cylinder portion 55a of the outer cylinder portion 55a, And a slide bearing 56 between the inner circumferential portions of the outer cylinder 55.

Description

[0001] POCKET FORMING DEVICE AND BLISTER PACKAGING MACHINE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pocket forming apparatus for forming a pocket portion with respect to a packaging film, and a blister packaging machine having the same.

Generally, PTP sheets are known as blister packages. The PTP sheet is provided with a packaging film in which a pocket portion filled with contents such as tablets is molded, and a packaging film on which the opening side of the pocket portion is sealed with respect to the packaging film. fix}.

Such a PTP sheet includes a step of molding a pocket portion while conveying a strip-shaped packaging film, a step of filling a corresponding portion of the pocket portion with a tablet or the like, a step of attaching a cover film to the packaging film so as to seal the opening side of the pocket portion , A step of punching in a PTP sheet unit, and the like.

In molding the pocket portion, a plug molding or a plug assist pressure molding (pressure molding; pressure forming < RTI ID = 0.0 > and / or < / RTI > (for example, see Patent Documents 1 and 2).

For example, in the plug assist pressure molding method, the upper and lower surfaces of the packaging film heated and softened are placed between a chamber box (hereinafter simply referred to as a " chamber ") and a lower mold (lower mold) After preforming from the chamber side with a plug, molding of the pocket portion is performed by blowing high-pressure air into the chamber.

[Prior Art Literature]

[Patent Literature]

Patent Document 1: JP-A-2004-238006

Patent Document 2: JP-A-2004-167954

Conventionally, however, there has been a problem that, in general, a cylindrical fixed shaft portion fixed to a chamber and penetrating into the chamber, a movable shaft portion inserted and inserted into the fixed shaft portion so as to be relatively displaceable relative to the fixed shaft portion, (Bearing) (bearing) is disposed between the inner peripheral portion of the fixed shaft portion and the outer peripheral portion of the movable shaft portion, and a plug provided at one end of the fixed shaft portion and a fluid pressure cylinder connected to the other end side of the movable shaft portion to drive the movable shaft portion Respectively.

Therefore, foreign matter (dust or oil) generated from the bearing through the clearance between the fixed shaft portion and the movable shaft portion leading to the inside of the chamber may enter (enter or enter) into the chamber and further into the pocket portion after molding.

Such a problem is not limited to the molding apparatus having a chamber, but can occur in all the molding apparatuses that perform the plug molding.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pocket forming apparatus and a blister packaging machine capable of suppressing mixing of foreign matters into a pocket portion when molding a pocket portion with a packaging film using a plug, It is one of purpose.

Hereinafter, each of the means suitable for solving the above-mentioned problems will be classified and described. In addition, specific action effects are added to the corresponding means as necessary.

MEANS FOR SOLVING THE PROBLEMS 1. A pocket molding apparatus for molding a pocket portion for accommodating a predetermined content into a film for packaging by at least a plug (by pressing with a plug) in a manufacturing process of a blister package,

A tubular fixed shaft portion fixed to a predetermined portion along a predetermined axial direction substantially perpendicular to the packaging film surface,

A movable shaft portion inserted into the inner peripheral side of the fixed shaft portion and displacing the plug along the axial direction,

A tubular outer tube (outer tube) which is provided so as to be displaceable relative to the fixed shaft portion along the axial direction from the outer peripheral side of the fixed shaft portion and which is fixed to the movable shaft portion,

And driving means for relative displacement of the outer cylinder and the movable shaft portion with respect to the fixed shaft portion along the axial direction,

And a bearing is provided between an outer peripheral portion of the fixed shaft portion and an inner peripheral portion of the outer cylinder.

Means 2. A pocket molding apparatus for molding a pocket portion for accommodating a predetermined content into a film for packaging by at least a plug (by pressing with a plug) in a manufacturing process of a blister package,

A chamber having an inner space into which a high-pressure gas to be sprayed is introduced into the packaging film;

A tubular fixed shaft portion fixed to the chamber along a predetermined axial direction substantially perpendicular to the packaging film surface and communicating with the chamber,

A movable shaft portion inserted into the inner peripheral side of the fixed shaft portion and displacing the plug along the axial direction in the chamber,

A tubular outer cylinder fixed to the movable shaft portion so as to be displaceable relative to the fixed shaft portion along the axial direction from the outer peripheral side of the fixed shaft portion,

And driving means for relative displacement of the outer cylinder and the movable shaft portion with respect to the fixed shaft portion along the axial direction,

And a bearing is provided between an outer peripheral portion of the fixed shaft portion and an inner peripheral portion of the outer cylinder.

Means 3. A seal means (for example, a seal means for retaining the airtightness in the chamber or a seal means for preventing the inflow of foreign matter from the outside into the chamber) is provided between the outer peripheral portion of the fixed shaft portion and the inner peripheral portion of the outer cylinder And the pocket forming device according to the second aspect.

Means 4. A plug heating device for heating the plug is provided on the movable shaft part,

The movable shaft portion is hollow (hollow; hollow; And wherein a wiring for feeding (feeding) the plug heating means is disposed in the movable shaft portion. The pocket molding apparatus according to any one of the means 1 to 3,

5. A blister packaging machine provided with the pocket forming device according to any one of the first to fourth aspects.

According to the above-mentioned means 1, since the outer cylinder supported by the bearing against the fixed shaft portion moves along the axial direction, the movable shaft portion fixed to the outer shaft can be stably operated along the axial direction without being directly supported by the bearing I can do it.

As a result, since it is not necessary to provide a bearing between the movable shaft portion for displacing the plug and the fixed shaft portion into which the plug is inserted, foreign matter (dust, oil, etc.) generated from the bearing passes through the clearance between the movable shaft portion and the fixed shaft portion It is possible to suppress occurrence of problems such as leaking into the plug side. Further, it is possible to prevent foreign matter from entering into the pocket portion after molding.

In addition, there is no need to use a non-lubricating bearing or the like that has been subjected to a special surface treatment, and the manufacturing cost of the apparatus can be suppressed from increasing. In other words, since oil can be applied to the bearing, abrasion of the bearing can be suppressed, and the life span of the device can be lengthened.

According to the means 2, the same effect as that of the means 1 can be obtained. Particularly, in the means 2 of the present invention, since the bearing is provided on the outer peripheral side of the fixed shaft portion, that is, on the outer side of the chamber (the portion not communicating with the inner space of the chamber), foreign matter (dust, oil, It is possible to more reliably prevent occurrence of problems such as

If seal means such as packing is provided between the movable shaft portion and the fixed shaft portion, foreign matter (dust or the like) generated from the seal means may enter into the chamber and hence into the pocket portion after molding as in the case of the bearing have.

On the other hand, according to the means 3, the occurrence of such a problem can be suppressed. In addition, since oil can be applied to the sliding surface (sliding surface) of the seal means, abrasion of the seal means can be suppressed and the life of the apparatus can be increased.

According to the means 4, by providing the plug heating means, the moldability of the pocket portion can be improved.

Further, for example, when the plug heating means is provided under the configuration of the means 2, a path for drawing the wiring for feeding power to the plug heating means from the outside into the chamber is required.

On the other hand, it is also conceivable to provide a movable movable shaft for wiring separately from the movable shaft for plug driving. However, in such a configuration, a plurality of movable shaft portions and a plurality of bearings corresponding thereto are required.

When a plurality of movable shaft portions are provided, the distances between the axes of the plurality of movable shaft portions are changed due to thermal expansion of various members due to heat generation of the plug heating means, and distortion occurs. For this reason, a large load is applied to bearings for supporting the respective movable shaft portions, and wear and the like are likely to occur. As a result, foreign matter is liable to be generated, and the service life of the apparatus is shortened.

On the other hand, according to the means 4 of the present invention, since the movable shaft portion for driving the plug and the movable shaft portion for wiring are integrated into one, the occurrence of the above problem can be suppressed.

As in the case of the means 5, by providing the pocket molding apparatus in the blister packaging machine, it is possible to reduce the generation of defective products in the process of manufacturing the blister package.

In general, a blister packaging machine includes a pocket forming device for molding a pocket portion of a packaging film to be conveyed in a strip shape, charging means for filling the contents with respect to the pocket portion, And a sheet punching means for punching a strip-shaped blister film in which the cover film is attached to the packaging film in units of a blister package. Further, the blister packaging machine is provided with discharging means for discharging the blister package determined to be defective by a predetermined inspection device.

1 is a plan view showing a PTP sheet;
2 is a partial cross-sectional view showing the structure of a PTP sheet.
3 is a schematic view showing the entire configuration of a PTP sheet production apparatus.
[Fig. 4] A sectional schematic view for explaining a pocket molding apparatus.

Hereinafter, one embodiment will be described with reference to the drawings. First, the construction of the PTP sheet as a blister pack (blister pack) to be manufactured will be described in detail.

1 and 2, the PTP sheet 28 includes a packaging film 2 made of, for example, PP (polypropylene) and having a plurality of pocket portions 7, a pocket portion 7 And a cover film 13 made of a film made of aluminum and attached to the packaging film 2. [ Each of the pocket portions 7 contains one tablet B as a content.

The PTP sheet 28 in this embodiment is formed by punching a strip-shaped PTP film 16 (see Fig. 3) formed of a strip-shaped wrapping film 2 and a strip-shaped cover film 13, .

A plurality of separating slits 35 are formed in the packaging film 2 of the PTP sheet 28 so as to be separated by a pair piece (small piece) 34 including two pocket portions 7. Further, a tag portion 38 in which identification information such as a lot number is stamped is attached to an end portion (end portion) of the PTP sheet 28.

Next, the outline of a PTP sheet production apparatus 1 as a blister packaging machine for manufacturing the PTP sheet 28 will be described with reference to FIG.

The band-shaped packaging film (2) is wound in a roll shape from the most upstream side to the other side. wind}. As described above, the packaging film 2 is made of a synthetic resin having a relatively rigid rigidity such as PP and is transparent or semitransparent.

The leading end (leading end) of the wrapping film 2 wound in a roll shape is guided to the guide roll 3. The wrapping film 2 is mounted on the intermittent feed roll 4 on the downstream side of the guide roll 3. The intermittent feed roll 4 is connected to the intermittently rotating motor M1, and intermittently feeds the film for packaging 2.

Between the guide roll 3 and the intermittent transport roll 4 is arranged a heating device 5 as heating means and a pocket forming device 6 in order along the transporting path of the packaging film 2. The packaging film 2 is partially heated by the heating device 5 so that the packaging film 2 is heated by the pocket molding device 6 in a state in which the packaging film 2 is relatively flexible, (7) is formed. The forming of the pocket portion 7 is carried out at an interval between the conveying operation of the packaging film 2 by the intermittent conveying roll 4.

The wrapping film 2 sent out from the intermittent feed roll 4 is attached in the order of the tension roll 8, the guide roll 9 and the continuous feed roll 10.

The continuous conveying roll 10 is connected to a motor M2 rotating constantly (constantly), and continuously conveys the packaging film 2 at a constant speed. The tension roll 8 is in a state in which the film for wrapping 2 is pulled toward the side where it is tensed by the elastic force and the tension of the wrapping film 8 due to the difference in the conveying operation between the intermittent conveying roll 4 and the continuous conveying roll 10 (Deflection) of the packaging film 2 is prevented so that the packaging film 2 is always kept in a tension state at all times.

Between the guide roll 9 and the continuous feed roll 10 is provided a tablet feeder 11 as a filling means for automatically filling the pockets 7 with the tablets B along the conveying path of the packaging film 2, Respectively. The tablet B supplied by the natural drop from the tablet inserting device 11 has a depth of the pocket portion 7 substantially equal to the thickness of the tablet B, (7).

Whether or not the tablets B are securely packed in the respective pocket portions 7 along the transport path of the packaging film 2 and whether the tablets B are packed securely between the tablet feed device 11 and the continuous transport roll 10, And an inspection device 12 for performing inspection such as presence or absence of foreign matter, presence or absence of foreign matters, and the like. This inspection apparatus 12 performs inspection from the opening side of the pocket section 7. [

On the other hand, the cover film 13 formed in a band shape is wound in a roll shape from the most upstream side.

The leading end of the cover film 13 wound in the form of a roll is guided to the continuous feed roll 10 via the guide roll 14. A sealing roll 15 having a heater is pressed against the continuous feed roll 10 and the wrapping film 2 and the cover film 13 are fed between the rolls 10 and 15, Lt; / RTI > The cover film 13 is adhered to the packaging film 2 by passing the packaging film 2 and the cover film 13 between the both rolls 10 and 15 in a heat and pressure contact state, The PTP film 16 filled in the respective pocket portions 7 is produced. In the present embodiment, the attachment means is constituted by these rolls 10 and 15. [

The PTP film 16 sent out from the continuous feed roll 10 is attached in the order of the tension roll 17 and the intermittent feed roll 18 in this order.

The intermittent feed roll 18 is connected to the intermittently rotating motor M3, and intermittently feeds the PTP film 16. The tension roll 17 is in a state in which the PTP film 16 is pulled toward the side where it is tensed by the elastic force and the PTP film 16, which is different from the conveying operation between the continuous feed roll 10 and the intermittent feed roll 18, Thereby preventing the warp of the PTP film 16 and always holding the PTP film 16 in a strained state.

An inspection device 19 is provided between the continuous transport roll 10 and the tension roll 17 along the transport path of the PTP film 16 to inspect the presence or absence of contamination of the tablets B, Respectively. This inspection device 19 performs inspection from the projecting surface side of the pocket portion 7. [ Therefore, in addition to the inspection by the inspection apparatus 12, the inspection of both sides of the PTP film 16 can be performed. In addition, when a defective product is determined by each of the inspection devices 12 and 19, the PTP sheet determined to be defective is separately discharged by a defective sheet discharge mechanism (not shown).

The PTP film 16 sent out from the intermittent feed roll 18 is attached in the order of the tension roll 21 and the intermittent feed roll 22 in this order.

The intermittent feed roll 22 is connected to the intermittently rotating motor M4 and feeds the PTP film 16 intermittently. The tension roll 21 is pulled toward the side where the PTP film 16 is tensed by the elastic force and prevents warpage of the PTP film 16 between the intermittent transport rolls 18,

A slit forming device 23 and a marking device 24 are arranged in order between the intermittent conveying roll 18 and the tension roll 21 along the conveying path of the PTP film 16. [ The slit forming device 23 has a function of forming the separating slit 35 at a predetermined position of the PTP film 16. In addition, the marking device 24 has a function of adding a mark to a predetermined position (for example, a tag portion) of the PTP film 16.

The PTP film 16 delivered from the intermittent transport roll 22 is mounted on the downstream side thereof in the order of the tension roll 25 and the continuous transport roll 26. Between the intermittent conveying roll 22 and the tension roll 25, a sheet punching device 27 as a sheet punching means is disposed along a conveying path of the PTP film 16. The sheet punching device 27 has a function of punching the PTP film 16 in units of PTP sheets.

The PTP sheet 28 punched by the sheet punching device 27 is taken out (taken out; take out} is conveyed by the conveyor 29, and once stored in the hopper 30 for the finished product.

On the other hand, the unwanted film portion 32 constituting the remnant portion (scrap portion) remaining after the punching by the sheet punching device 27 is conveyed while sandwiched by the continuous conveying roll 26 And is then guided to the cutting device 31.

The cutting device 31 has a function of cutting the unnecessary film portion 32 to a predetermined size and performing scrap processing. The scrap is stored in the hopper 33 for scrapping and is then disposed of separately.

Each of the transport rolls 4, 10, 18, 22 and the like has a positional relationship in which the roll surface thereof and the pocket portion 7 face each other. The pocket portion 7 is prevented from being crushed because a recessed portion for accommodating the pocket portion 7 is formed on the surface thereof. In addition, the pockets 7 are accommodated in the concave portions of the respective conveying rolls 4, 10, 18, 22, etc., and the conveying operation is performed, thereby ensuring the intermittent conveying operation and the continuous conveying operation.

The outline of the PTP sheet manufacturing apparatus 1 is as described above. Hereinafter, the configuration of the pocket forming apparatus 6 will be described in more detail. The pocket molding apparatus 6 in this embodiment forms the pocket section 7 on the packaging film 2 by the plug assist pressure molding method.

As shown in Fig. 4, the pocket forming apparatus 6 is provided with a lower mold 45 at a position below the conveying path of the packaging film 2. The lower mold 45 is connected to a drive means (not shown) via a drive transmission mechanism 46. [ The lower mold 45 is brought into abutment with the packaging film 2 along the axis Z direction (vertical direction) substantially perpendicular to the packaging film 2 face. abut} possible work position (upper position) and a waiting position (lower position) apart from the wrapping film 2. As the driving means, any configuration such as a fluid pressure cylinder or a cam transmission mechanism can be employed.

On the upper surface of the lower mold 45, a plurality of molding depressions 45a corresponding to the shape of the pocket portion 7 to be molded are formed.

On the other hand, a chamber 50 is disposed above the transport path of the packaging film 2. The chamber 50 is connected to a driving means (not shown) via a driving transmission mechanism 51. [ This allows the chamber 50 to move along the axis Z to a working position (lower position) capable of contacting the packaging film 2 and a standby position (upper position) spaced from the packaging film 2 . As the driving means, any configuration such as a fluid pressure cylinder or a cam transmission mechanism can be employed.

Then, the lower mold 45 and the chamber 50 move to their respective working positions, so that the packaging film 2 can be held.

When the lower edge portion of the side wall frame portion 50a comes into contact with the packaging film 2 at the working position, the chamber 50 has a closed space in the inside thereof, (Inner space) is formed.

The upper wall portion 50b of the chamber 50 is formed in a flat plate shape and a through hole 50c penetrating along the axis Z direction is formed at a substantially central portion thereof.

A stand shaft 53 is attached to the upper surface of the upper wall portion 50b of the chamber 50 in correspondence with the through hole 50c (attachment; attach} is fixed.

The stand shaft 53 is provided with a cylindrical fixed shaft portion 53a penetrating along the axis Z and a flange portion 53b extending and projecting from the lower end of the fixed shaft portion 53a to the outer circumferential side . The flange 53b of the stand shaft 53 is fixed to the upper wall 50b of the chamber 50 by a fastening member 54 such as a bolt.

On the outer circumferential side of the fixed shaft portion 53a, an outer cylinder 55 having a larger diameter than the fixed shaft portion 53a and having a cylindrical shape is assembled. More specifically, the outer cylinder 55 has a ceiling with a lower opening { and the upper end side of the fixed shaft portion 53a is inserted from the lower side thereof into the inside thereof.

An attachment groove 55a is formed on the inner peripheral surface of the outer cylinder 55 and a slide bearing 56 is attached to the attachment groove 55a. In this embodiment, a linear bushing bearing is employed as the slide bearing 56. Needless to say, the present invention is not limited to this, and any other structure may be adopted as the slide bearing 56.

The outer cylinder 55 can be relatively displaced (slidably supported) along the axis Z with respect to the fixed shaft portion 53a.

An attachment groove 55b is formed in the inner peripheral surface of the outer cylinder 55 at a position higher than the attachment groove 55a and a packing 57 as a seal means is attached to the attachment groove 55b. By providing the packing 57, the airtightness of the inside of the chamber 50 (including a portion such as the inside of the fixed shaft portion 53a communicating with the chamber) can be ensured.

On the other hand, on the inner peripheral side of the fixed shaft portion 53a, the movable shaft portion 60 having a smaller diameter and a cylindrical shape than the fixed shaft portion 53a is inserted in the direction of the axis Z in a noncontact state.

The upper end portion of the movable shaft portion 60 is fixed to the ceiling portion (top wall portion) 55c of the outer cylinder 55. As a result, the movable shaft portion 60 is moved up and down (vertical movement; vertical motion}, which enables vertical movement. In other words, the movable shaft portion 60 is also capable of relative displacement with respect to the fixed shaft portion 53a along the axis Z direction.

The lower end of the movable shaft portion (60) projects into the chamber (50). At the lower end of the movable shaft portion 60, a flange portion 60a extending and projecting toward the outer peripheral side is formed. On the lower side of the flange portion 60a, a plate-like heating plate 61 is fixed as a plug heating means. A plurality of plugs 63 for molding the pockets 7 are formed on the lower surface of the heating plate 61 so as to correspond to the molding recesses 45a of the lower mold 45.

A through hole 55d is formed in the ceiling wall portion 55c of the outer cylinder 55 so as to communicate with the inside of the movable shaft portion 60 along the direction of the axis Z. [ A cap portion (lid portion) 65 is attached and fixed to the upper surface side of the ceiling portion 55c of the outer cylinder 55 so as to cover the through hole 55d.

A ring-shaped attachment groove 55e is formed on the upper surface of the ceiling wall 55c of the outer cylinder 55 covered with the stopper portion 65 so as to surround the through hole 55d. And an O-ring 66 is attached. By providing the O-ring 66, the airtightness of the chamber 50 (including the portion communicating with the chamber 50) can be ensured.

A pair of terminal portions 67 are attached to the stopper portion 65. Each of the terminal portions 67 has an upper end projecting outward from the stopper portion 65 and a lower end portion projecting into the inside of the movable shaft portion 60. The upper end of the terminal portion 67 is connected to an external power source (not shown).

One end of the wiring 68 is connected to the lower end of each terminal portion 67, respectively. The wiring 68 passes through the inside of the movable shaft portion 60 and the other end thereof is connected to the heating plate 61. Then, the heating plate 61 generates heat by being energized (energized) via the wiring 68. As a result, the plug 63 is warmed (warmed) and the moldability of the pocket portion 7 is enhanced.

A terminal cover 69 is attached and fixed on the upper surface side of the ceiling portion 55c of the outer cylinder 55 so as to cover the pair of terminal portions 67. [

A plurality of pillars 70 are installed upright on the upper wall portion 50b of the chamber 50 so as to surround the stand shaft 53. [ A flat support stand 71 is fixed to the upper portion of the support 70.

An air cylinder 72 as a driving means is fixedly attached to the support base 71. The air cylinder 72 has a rod 72a which can move up and down along the axis Z direction. The rod 72a protrudes downward from the support table 71 through a through hole 71a formed in the support table 71. [

The lower end of the rod 72a is connected to the terminal cover 69. This allows the terminal cover 69, the outer cylinder 55 and the movable shaft portion 60 to be vertically movable along the axis Z in accordance with the drive of the air cylinder 72 (vertical movement of the rod 72a) do. The driving means for vertically moving the movable shaft portion 60 and the like is not limited to the air cylinder 72, and other actuators such as a cam mechanism may be employed.

The upper wall portion 50b of the chamber 50 is provided with an air introduction port 75 for introducing high pressure air into the chamber 50. [ The air inlet 75 is connected to an air supply device (not shown). During the molding of the pocket portion 7, the high-pressure air supplied from the air supply device is introduced into the chamber 50 through the air inlet 75.

By the way, the procedure for manufacturing the PTP sheet 28 by the PTP sheet production apparatus 1 configured as described above will be mainly described with reference to the main steps.

The packaging film (2) is first subjected to a pocket forming step. In this pocket forming step, the above-described heating apparatus 5 and the pocket forming apparatus 6 are used.

More specifically, the packaging film 2 is first partially heated in the heating device 5, corresponding to the pocket portion 7, and becomes softened, which tends to spread very much.

Next, the partially softened packaging film 2 is transported to the pocket forming apparatus 6 and stopped at a predetermined position. Subsequently, in the pocket molding machine 6, the lower mold 45 and the chamber 50 move from their stand-by positions (see Fig. 4) to the working position, and hold the packaging film 2 therebetween.

In this state, the air cylinder 72 is driven, and the plug 63 is lowered. As a result, the plug 63 is pressed against the softened portion of the packaging film 2, and the softened portion is stretched. Subsequently, the air supply device operates, and high-pressure air is blown into the chamber 50 through the air inlet 75. As a result, the softened portion of the packaging film 2 is further stretched, pressed along the molding recess 45a of the lower mold 45, and the pocket portion 7 is molded.

Thereafter, the plug 63 is lifted and separated from the packaging film 2, and the lower mold 45 and the chamber 50 return to their standby positions, respectively, and the pocket forming process is completed.

The packaging film 2 that has undergone the pocket forming process is supplied to the refill charging process by the refill charging device 11. Here, the pocket portion 7 is filled with the tablet B.

The packaging film 2 filled with the tablets B is supplied to the attachment process by the continuous conveying roll 10 and the seal roll 15 after being inspected by the inspection device 12. Here, the cover film 13 is attached to the packaging film 2, and the PTP film 16 is formed.

Thereafter, the PTP film 16 is subjected to the inspection process by the inspection apparatus 19, and then to the slit molding process by the slit molding apparatus 23. [ Here, the slits 35 are formed in the PTP film 16.

Subsequently, the PTP film 16 is provided for imprinting by the imprinting device 24. Here, identification information such as a lot number is stamped at a position corresponding to the tag unit 38.

When the imprinting process is completed, the PTP film 16 is supplied to the sheet punching process by the sheet punching device 27. Here, the PTP film 16 is punched out in units of PTP sheets, whereby the PTP sheet 28 shown in Figs. 1 and 2 is obtained. Thus, the manufacturing process of the PTP sheet 28 is completed.

As described above in detail, in the present embodiment, the outer cylinder 55 supported by the slide bearing 56 with respect to the fixed shaft portion 53a is moved along the axis Z direction, The movable shaft portion 60 can be operated stably along the axis Z without being directly supported by the bearing.

As a result, it is not necessary to provide a bearing between the movable shaft portion 60 for displacing the plug 63 and the fixed shaft portion 53a into which the plug 63 is inserted, and the slide bearing 56 is provided on the outer peripheral side of the fixed shaft portion 53a (Dust, oil, etc.) generated from the slide bearing 56 flows into the chamber 50, that is, the outside of the chamber 50 (the portion that does not communicate with the internal space of the chamber 50) It is possible to suppress the occurrence of problems such as Further, it is possible to suppress foreign matter from entering into the pocket portion 7 after molding.

In addition, there is no need to use a non-lubricating bearing or the like that has been subjected to a special surface treatment, and the production cost of the pocket forming apparatus 6 can be suppressed from increasing. In other words, since it is possible to apply oil to the slide bearing 56, wear of the slide bearing 56 can be suppressed and the life of the pocket forming device 6 can be increased.

The packing 57 is provided between the outer peripheral portion of the fixed shaft portion 53a and the inner peripheral portion of the outer cylinder 55. Therefore, It is possible to reduce the risk of entering the pocket portion 7 after molding. In addition, since it is possible to apply oil to the sliding surface of the packing 57, the wear of the packing 57 can be suppressed and the life of the pocket forming device 6 can be increased.

In the present embodiment, the movable shaft portion 60 is formed in a hollow cylindrical shape, and a wiring 68 for feeding power to the heating plate 61 is disposed in the movable shaft portion 60. Thereby, since the movable shaft portion 60 for driving the plug 63 can be also used for wiring, there is no need to provide a plurality of movable shaft portions, and occurrence of various problems that may occur in this case can be suppressed have.

Further, the present invention is not limited to the description of the above embodiment, and the following description is also applicable. Needless to say, other applications and modifications that are not illustrated in the following are also possible.

(a) The constitution of the blister package to be manufactured is not limited to the PTP sheet 28 of the above embodiment.

For example, in the above embodiment, the contents are specified as the case of the tablet (B), but the type, shape, etc. of the contents are not particularly limited. For example, even if food or electronic parts are filled as contents good. Of course, the shape and size of the pocket portion 7 formed corresponding to these contents are not limited to the above-described embodiments.

Accordingly, the present invention relates to a method of preparing a food, such as jelly, coffee, milk, Disposable small packages}, blister packaging machines for packaging medical supplies such as syringes, printer cartridges and the like; small} blister packer for packaging parts.

The arrangement and the number of the pocket portions 7 in units of the PTP sheet (blister package) are not limited to the above embodiment (two rows, ten). For example, the pocket portions 7 ), And a PTP sheet (blister package) having various arrangements and numbers can be employed.

3, for the sake of convenience, the pitches of the pocket portions 7 in the longitudinal direction of the packaging film 2 are shown to be equally spaced. In the above embodiment, the pitches of the pocket portions 7 are But rather slightly spaced (see FIG. 4). Of course, the pitches of the pocket portions 7 may be equally spaced.

(b) the material of the packaging film 2 and the cover film 13 are not limited to the above-described embodiments. For example, in the above-described embodiment, the packaging film 2 is formed of PP, but the present invention is not limited to this, and the packaging film 2 may be formed of a synthetic resin material such as PVC (polyvinyl chloride) .

When the packaging film 2 is formed of a metal material such as aluminum, the heating device 5 is not used, and so-called cold forming is performed. Therefore, the pocket portion 7 is not molded by the high-pressure air using the chamber 50. [

(c) In the above-described embodiment, the case where the plug assist pressure forming method is employed is specified. However, the present invention is not limited to the molding method, and it is sufficient that at least the plug forming is performed. Therefore, the chamber 50 may be omitted.

(d) In the above embodiment, the entire bottom surface of the chamber 50 is opened. However, the present invention is not limited to this, and the bottom wall portion may be provided in the chamber 50, A plurality of holes may be formed in the wall portion corresponding to the plurality of plugs 63 and the plug 63 may be projected and retracted from the holes.

(e) In the above-described embodiment, the movable shaft portion 60 is formed in a hollow cylindrical shape and the wiring 68 for feeding electricity to the heating plate 61 is disposed in the movable shaft portion 60. However, For example, in the case where the plug 63 is not heated, a movable rod portion of a rod shape (solid rod) may be employed.

(f) In the above embodiment, the plug driving unit including the stand shaft 53, the outer cylinder 55, and the movable shaft portion 60 is provided with only one pair (with respect to one chamber 50) However, a plurality of such plug driving units may be provided.

(g) The stand shaft 53 and the chamber 50 may be integrally formed instead of the above-described embodiment. The outer cylinder 55 and the movable shaft portion 60 may be integrally formed.

(h) In the above embodiment, the slide bearing 56 and the packing 57 are attached to the inner circumferential surface of the outer cylinder 55, but the slide bearing 56 and the packing 57 At least one of which may be attached to the outer peripheral surface of the fixed shaft portion 53a.

(i) In the outer peripheral portion of the fixed shaft portion 53a, a receiving object (foreign matter generated from the slide bearing 56 or the packing 57) falling from the outer peripheral portion of the fixed shaft portion 53a and the inner peripheral portion of the outer cylinder 55, Plate {受 皿; tray, pan} member may be provided. This can reduce the risk of foreign matter scattering.

One… PTP sheet manufacturing equipment, 2 ... Packaging film, 5 ... Heating device, 6 ... Pocket forming device, 7 ... Pocket part, 13 ... Cover film, 16 ... PTP film, 28 ... PTP sheet, 50 ... Chamber, 53 ... The stand shaft, 53a ... Fixed shaft portion, 55 ... The outer tube, 56 ... Slide bearing, 57 ... Packing, 60 ... Movable shaft portion, 61 ... Heating plate, 63 ... Plug, 68 ... Wiring, 72 ... Air cylinder, 75 ... Air inlet, Z ... Axis.

Claims (5)

A pocket molding apparatus for molding a pocket portion for accommodating a predetermined content into a film for packaging using at least a plug in a manufacturing process of a blister package body,
A tubular fixed shaft portion fixed to a predetermined portion along a predetermined axial direction substantially perpendicular to the packaging film surface,
A movable shaft portion inserted into the inner peripheral side of the fixed shaft portion and displacing the plug along the axial direction,
A tubular outer cylinder fixed to the movable shaft portion so as to be displaceable relative to the fixed shaft portion along the axial direction from the outer peripheral side of the fixed shaft portion,
And driving means for relative displacement of the outer cylinder and the movable shaft portion with respect to the fixed shaft portion along the axial direction,
And a bearing is provided between an outer peripheral portion of the fixed shaft portion and an inner peripheral portion of the outer cylinder. A pocket molding apparatus for molding a pocket portion for accommodating a predetermined content into a film for packaging using at least a plug in a manufacturing process of a blister package body,
A chamber having an inner space into which a high-pressure gas to be sprayed is introduced into the packaging film;
A tubular fixed shaft portion fixed to the chamber along a predetermined axial direction substantially perpendicular to the packaging film surface and communicating with the chamber,
A movable shaft portion inserted into the inner peripheral side of the fixed shaft portion and displacing the plug along the axial direction in the chamber,
A tubular outer cylinder fixed to the movable shaft portion so as to be displaceable relative to the fixed shaft portion along the axial direction from the outer peripheral side of the fixed shaft portion,
And driving means for relative displacement of the outer cylinder and the movable shaft portion with respect to the fixed shaft portion along the axial direction,
And a bearing is provided between an outer peripheral portion of the fixed shaft portion and an inner peripheral portion of the outer cylinder. 3. The method of claim 2,
And a seal means is provided between an outer peripheral portion of the fixed shaft portion and an inner peripheral portion of the outer cylinder. 4. The method according to any one of claims 1 to 3,
A plug heating means for heating the plug is provided on the movable shaft portion,
Wherein the movable shaft portion is formed in a hollow cylindrical shape and a wiring for supplying (supplying) electricity to the plug heating means is disposed in the movable shaft portion. A blister packaging machine with a pocket forming device according to any one of claims 1 to 4.

Images