JP2000281008A - Ptp packaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a PTP packaging device which restrains the generation of curls on a PTP packaged body as much as possible and easily carries out a post-processing. SOLUTION: A PTP packaging device is provided with a carrying device for carrying a resin film 10, a forming box 11 for forming a pocket 10a of the resin film during the carriage, a means of feeding a cover film 15 in a manner of covering the same set above the resin film and a sealing device 19 for pressurizing both films overlapped together while heating, and the sealing device is provided with a receiving roller 17 and a heating roller 18, and both films are pressurized and heated between both rollers. A guide roller 20 is provided on the downstream side of the sealing device, and both films integrated together are hung around the guide roller to separate imediately both films after being sealed are separated from the receiving roller and carry the films in the flat state. The films are cooled in the flat state by the arrangement to generate no curls.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a PTP packaging device.

[0002]

2. Description of the Related Art FIG. 1 shows a conventional blister package (PTP).
2 shows a portion in which two films are sealed and integrated in a packaging device for packaging. As shown in FIG. 1, the resin film 1 having a large number of pockets 1 a is guided to the sealing device 4 after a packaged object 2 such as a tablet is supplied to the pockets 1 a during the transportation. On the other hand, the cover film 3 made of aluminum foil and adhered to the resin film 1 to seal the pocket portion 1 a is guided by the roller 5 and guided to the sealing device 4.

The sealing device 4 has a receiving roller 6 located on the resin film 1 side and a heating roller 7 located on the cover film 3 side. The heating roller 7 is attached to the receiving roller 6 side at a constant pressure. It is designed to rotate in an energized state. As a result, when the two films 1 and 3 pass between the two rollers 6.7 in an overlapping state, they are heated by the heating roller 7 and pressed by the two rollers 6 and 7,
Both films 1 and 3 are heat-sealed and integrated. Therefore, the pocket 1a is sealed (see FIG. 2B).

[0004] Thereafter, the two integrated films 1,
3 is transported while changing the course by being guided by the rollers 8,
An individual PTP package is cut by a cutting device (not shown).

As shown in FIG. 2A, the resin film 1 is formed by arranging the pockets 1a vertically and horizontally, and the region indicated by the two-dot chain line in FIG.
This is the part that becomes the package. That is, one PTP package is formed in two rows before and after the traveling direction.

[0006]

By the way, vinyl chloride is conventionally used for the resin film 1, but it has been switched to polypropylene in consideration of recent environmental problems. However, when this polypropylene is used, it curls as shown in FIG. 3 due to the contraction due to the crystallization of the polypropylene and the difference in the linear expansion coefficient between the aluminum foil and the polypropylene. Then, such a PTP package is alternately inverted after production, a plurality of PTP packages are stacked in a state where the pockets face each other, and the entire volume is reduced and packed in a box. If it curls, it will not be possible to superimpose it successfully.

[0007] The present invention has been made in view of the above-mentioned background, and has as its object to solve the above-described problems and to minimize the occurrence of curling of a PTP package.
An object of the present invention is to provide a PTP packaging device that can easily perform post-processing.

[0008]

In order to achieve the above object, in a PTP packaging apparatus according to the present invention, a conveying means for conveying a resin film, and a pocket portion is formed in the resin film in the middle of the conveying means. Molding means, a means for supplying a cover film over the resin film, and a sealing means for applying pressure while heating the superposed resin film and the cover film, The sealing means has a receiving roller disposed on the resin film side and a heating roller located on the cover film side, and both films are pressed and heated between the receiving roller and the heating roller. A guide member is provided downstream of the sealing means for controlling a conveying direction so as to separate the integrated resin film from the receiving roller (claim 1).

As one of the causes of the curling of the PTP package, in the conventional packaging apparatus, after heat sealing, the resin film and the cover film integrated as they are rotated around the periphery of the receiving roller. During rotation, a habit of a shape is formed along the circumferential surface of the receiving roller, and since the receiving roller itself is not heated, the resin film or the like is absorbed by the receiving roller and cooled. as a result,
It was found to be curled because it was cooled while being habitually curved along the circumferential surface.

Therefore, in the present invention, the resin film and the cover film, which are sealed and integrated, are wound around the guide member so as to be separated from the receiving roller as soon as possible. As a result, the curling along the circumferential surface of the receiving roller does not occur.

In addition, since the integrated film advances in a flat state from the separation to the guide member,
In the meantime, the cooling starts in a flat state, and the flat shape is added. Therefore, it is difficult to curl.

The guide member may be a guide rod which does not move, but is preferably a rotating roller (claim 2). As a result, the resin film or the like smoothly passes through the guide member, does not receive a large resistance when passing, and is not damaged.

The guide member may be arranged in a tangential direction of the receiving roller near the contact between the heating roller and the receiving roller. In this way, the two films can be separated from the receiving roller immediately after sealing, and do not contact the heating roller.

[0014]

FIG. 4 shows a preferred embodiment of a PTP packaging apparatus according to the present invention. As shown in the figure, a resin film 10 made of polypropylene is conveyed through a predetermined path by a known conveying mechanism, and a molding box 11 as a molding means is provided in the middle of the conveying path. The molding box 11 has a predetermined mold inside, and forms downwardly protruding pocket portions 10a at predetermined intervals by vacuum suction on the resin film 10. Further, a package supply device 13 is arranged downstream of the molding box 11 so as to supply a package (tablet) 14 into each pocket 10a. Conventionally known ones can be used for the molding box 11 and the package supply device 13.

The resin film 10 in which the article to be packaged 14 is supplied into the pocket portion 10a is guided to the sealing device 19. More specifically, it is supplied to the receiving roller 17 constituting the sealing device 19. That is, as shown in FIGS. 6 and 8, the receiving roller 17 has a number of recesses 17a on its peripheral surface, and the pockets 10a are inserted and arranged in the recesses 17a. ing. As a result, the resin film 11 that has come into contact with the receiving roller 17 rotates while the flat surface thereof contacts the peripheral surface of the receiving roller 17.

On the other hand, the cover film 15 made of aluminum foil which covers the resin film 10 is guided to a sealing device 19 via a roller 16 constituting a supplying means. The sealing device 19 has the receiving roller 17 described above and the heating roller 18 located on the cover film 15 side.
The two films 10, 15 are pressed and heated between the receiving roller 17 and the heating roller 18. As a result, the space between the two rollers 17 and 18 is moved between the two films 10 and
When 15 passes, it is heat-sealed and integrated.

Here, in the present invention, a guide roller 20 as a guide member is provided downstream of the sealing device 19.
The guide roller 20 is arranged in the tangential direction of the receiving roller 17 near the contact between the heating roller 18 and the receiving roller 17. As a result, when the resin film 10 and the cover film 15 integrated by heat sealing are stretched over the guide roller 20, the integrated resin film 10 and the like are separated from the receiving roller 17 immediately thereafter.

In addition, since the integrated films 10, 15 advance in a flat state from the separation to the guide roller 20, cooling starts in a flat state during that time, and the flat film is formed. Habit is given. Therefore, it is difficult to curl. Note that this guide roller 20 corresponds to FIG.
As shown in the figure, at the position where the pocket portion 10a exists,
A concave groove 20a is formed one step lower along the circumferential direction,
The pocket 10a is prevented from being crushed.

On the downstream side of the guide roller 20, the roller is wound around a plurality of rollers 21, travels along a predetermined path, passes through a cutting device 22, and is cut in the lateral direction in the traveling direction. Is manufactured. After passing through the guide roller 20, the two films 10, 15 are bent along the plurality of rollers 21, but are already flattened immediately after heating.
Even if it curves along 1, it returns to its original state.

Reference numeral 23 denotes a heat cover which prevents the heat of the heating roller 18 from diffusing to the surroundings other than the film. The heat cover 23 and the heating roller 18
Rotates forward and backward within a predetermined angle range as indicated by a double-headed arrow in FIG. That is, by connecting to the center of rotation 25 via the connecting bar 24, rotation is possible.

[0021]

As described above, in the PTP packaging device according to the present invention, after passing through the sealing device, the integrated resin film and cover film are stretched over the guide member, and the position of the guide member is determined. Is appropriately set, the conveying direction of the integrated resin film and the like can be controlled, and the resin film can be separated from the receiving roller as soon as possible. Therefore, since the transport direction is straight, the film is transported while maintaining a flat state, and is cooled there, so that the film is flattened without being curled by the receiving roller as in the related art. Addicted to. Therefore, curling can be suppressed as much as possible in the final PTP package, and subsequent processing (such as lamination and packing) can be easily performed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a conventional example.

FIG. 2 is a diagram illustrating a PTP package (resin film).

FIG. 3 is a diagram illustrating a conventional problem.

FIG. 4 is a view showing a preferred embodiment of a PTP package according to the present invention.

FIG. 5 is an enlarged view of a main part thereof.

FIG. 6 is a view showing a receiving roller.

FIG. 7 is a view showing a guide roller.

FIG. 8 is an enlarged view showing a sealing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Resin film 10a Pocket part 11 Molding box 12 Conveying device 13 Package supply device 14 Package 15 Cover film 16 Roller 17 Receiving roller 18 Heating roller 19 Sealing device 20 Guide roller 21 Roller

Claims (3)

[Claims] A molding means for forming a pocket portion in the resin film while the resin film is being conveyed; a means for supplying a cover film above the resin film so as to cover the cover film; A sealing means for applying pressure while heating the cover film.
In the P packaging apparatus, the sealing means has a receiving roller arranged on the resin film side and a heating roller located on the cover film side, and presses and heats both films between the receiving roller and the heating roller. A PTP packaging apparatus, wherein a guide member for controlling a conveying direction is provided downstream of the sealing means so as to separate the integrated resin film from the receiving roller. 2. The PTP packaging device according to claim 1, wherein the guide member is a rotating roller. 3. The PTP packaging apparatus according to claim 1, wherein the guide member is disposed in a tangential direction of the receiving roller near the contact between the heating roller and the receiving roller.