JP3558693B2 - Drying mechanism of packaging material web - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a drying mechanism for a packaging material web for evaporating and drying a sterilizing hydrogen peroxide solution attached to the packaging material web.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been used a liquid storage container in which a packaging material having a polyethylene layer on both sides of paper is formed into a brick (brick) -shaped container, and the inside of which is filled with a liquid such as milk or juice.
[0003]
On the other hand, a liquid packaging apparatus has been developed in which a liquid container is formed while simultaneously filling the inside thereof with a liquid. This liquid packaging device sterilizes a strip-shaped packaging material web with a hydrogen peroxide solution, removes the hydrogen peroxide solution from the packaging material web by evaporation, and then gradually forms the packaging material web into a tube. And filling the inside with liquid while adhering the longitudinal edges on both sides integrally, and then sealing, cutting and molding the packaging material web at equal intervals to manufacture the liquid storage container. belongs to.
[0004]
By the way, conventionally, an air knife was used to remove the hydrogen peroxide solution from the packaging material web. That is, high-temperature, high-speed air is applied to the packaging material web to which the hydrogen peroxide solution has adhered using an air knife, thereby evaporating the hydrogen peroxide solution and drying the surface.
[0005]
[Problems to be solved by the invention]
However, conventionally, between the sterilization chamber for sterilizing the packaging material web with hydrogen peroxide water and the aseptic chamber for removing the hydrogen peroxide water from the packaging material web and gradually forming the packaging material web into a tube, Since it was not separated in particular, the vapor of the hydrogen peroxide solution filling the sterilization chamber also entered the sterile chamber and filled it.
[0006]
In a sterile room filled with hydrogen peroxide water, it is impossible to completely dry the packaging material web with an air knife.Therefore, another mechanism for completely drying the packaging material web is required. Had become.
[0007]
The present invention has been made in view of the above points, and an object thereof is to remove and dry hydrogen peroxide water adhered to a packaging material web without fail when the packaging material web is introduced from a sterilization chamber to a sterile chamber. An object of the present invention is to provide a mechanism for drying a packaging material web.
[0008]
[Means for Solving the Problems]
To solve the above problems, the drying mechanism of the packaging material web according to the present invention, a sterilization chamber for sterilizing the strip-shaped packaging material web with hydrogen peroxide solution, and forming the packaging material web after the sterilization process into a tube. A sterilizing chamber filled with a liquid therein is partitioned by a partition plate, and the partition plate is formed into an elongated slit shape just enough to allow the packaging material web to pass through, and a dry ventilation tube through which the band-shaped packaging material web is passed is formed therein. Further, an air supply pipe for supplying dry sterile air is connected to a predetermined position of the sterile room, whereby a portion of the air in the sterile room is attached to the packaging material web toward the sterilizing room through the dry ventilation tube. It was configured to blow out at a high speed so that the hydrogen water evaporated and dried .
[0009]
Further, the present invention provides a ventilation cylinder, comprising: a plate-shaped opening / closing lid for closing an opening of the drying ventilation cylinder near an opening end of one of the drying ventilation cylinders; and a drive mechanism for swinging the opening / closing lid. A switchgear was attached.
[0010]
[Action]
The sterilization chamber and the sterile room are separated by a partition plate, and sterile air is supplied from the air supply pipe. Therefore, in a dry ventilation tube, the sterile air in the sterile room always flows toward the sterilization room, and the peroxidation enters the sterile room. Hydrogen water vapor does not enter.
[0011]
In addition, since the inside of the drying ventilation tube is formed in a slender slit shape just enough to allow the packaging material web to pass through, aseptic air blows out from the aseptic chamber toward the sterilizing chamber at a high speed. Therefore, when the packaging material web to which the hydrogen peroxide solution has adhered passes through the drying ventilation tube, high-temperature sterile air blows through at high speed in a direction opposite to the traveling direction of the packaging material web. The attached hydrogen peroxide is evaporated and dried.
[0012]
On the other hand, when the use of the liquid packaging device is stopped, the opening / closing lid of the ventilation tube opening / closing device closes the dry ventilation tube. Therefore, even when the supply of the sterile air into the sterile room is stopped, the vapor of the hydrogen peroxide solution in the sterile room does not enter the sterile room.
[0013]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 6 is a schematic perspective view showing a process of processing a packaging material web in the liquid packaging apparatus. As shown in the figure, a packaging material web 60 having polyethylene layers formed on both sides of a strip of paper is fed from a roll 65, passes through several rollers 70, and is then treated with a hydrogen peroxide solution in a sterilization processing unit 10. A sterilization process is performed. Thereafter, the packaging material web 60 guided upward is removed from the surface of the packaging material web 60 by the hydrogen peroxide solution, and is guided substantially vertically downward in the next forming section 30.
[0014]
Then, the plate-shaped packaging material web 60 is gradually formed into a tubular shape by the upper molding rollers 90 and 93 and the lower molding roller 97, and both longitudinal edges of the packaging material web 60 are bonded to each other by a welding device (not shown). And a desired liquid is filled therein by the filling tube 105. Thereafter, it is sealed, cut and molded at equal intervals by devices 107, 107 called jaws, and finally a substantially parallelepiped brick container is formed by a final bending device (not shown).
[0015]
Here, FIG. 1 is a diagram showing a main part of the present invention, and more specifically, a diagram showing a sterilization processing section 10 and a molding section 30 in the liquid packaging apparatus. As shown in the figure, the sterilizing section 10 is actually housed in the sterilizing chamber 11, and the molding section 30 is also housed in the sterile chamber 31.
[0016]
According to the invention of the present application, a partition plate 40 for partitioning the two chambers is attached between the sterilizing chamber 11 and the aseptic chamber 31, and the partition plate 40 is provided with a dry ventilation tube 45 for allowing the packaging material web 60 to pass therethrough. It is constituted by connecting an air supply pipe 57 for supplying high-temperature sterile air downward.
[0017]
The temperature and amount of the sterile air supplied from the air supply pipe 57 are controlled to be optimal (for example, 100 m ³ / h at 100 ° C.). In addition, as the aseptic air, air obtained by extracting a part of the air sterilized in the sterilizing chamber 11, removing the vapor of the hydrogen peroxide solution in the air, and drying the air is used.
[0018]
As described above, the sterilizing chamber 11 and the aseptic chamber 31 are separated by the partition plate 40 and the aseptic air is supplied from the air supply pipe 57. Therefore, in the dry ventilation tube 45, the aseptic air in the aseptic chamber 31 is always sterilized. The steam flows toward the chamber 11 and the vapor of the hydrogen peroxide solution does not enter the sterile chamber 31.
[0019]
In addition, since the inside of the drying ventilation tube 45 is formed in an elongated slit shape just enough to allow the packaging material web 60 to pass through, aseptic air blows from the aseptic chamber 31 toward the sterilization chamber 11 at a high speed. Therefore, when the packaging material web 60 to which the hydrogen peroxide solution adheres passes through the drying ventilation tube 45, sterile air of high temperature (about 100 ° C.) blows at a high speed in a direction opposite to the traveling direction of the packaging material web 60. Thus, the hydrogen peroxide water adhering to the packaging material web 60 is evaporated and dried. Therefore, the packaging material web 60 to which no dried hydrogen peroxide solution adheres is introduced into the aseptic chamber 31. Hereinafter, each component will be described.
[0020]
FIG. 2 is an enlarged schematic sectional view of a main part showing a portion of the drying ventilation tube 45. As shown in the figure, the drying ventilation tube 45 is composed of a sterilization room side ventilation tube 47 projecting into the sterilization room 11 and a sterile room side ventilation tube 53 projecting into the sterilization room 31.
[0021]
Here, FIG. 3 is a perspective view showing the sterilization room side ventilation tube 47. As shown in FIGS. 2 and 3, the sterilizing chamber-side ventilation cylinder 47 is formed to have an elongated cylindrical shape, and is provided with a slit hole 48 through which the band-shaped packaging material web 60 passes. At one end, a mounting plate 49 is mounted. At both ends of the mounting plate 49, mounting grooves 50 for screw mounting for mounting the mounting plate 49 to the partition plate 40 are provided.
[0022]
The opening end of the ventilation chamber 47 on the sterilization room side is tapered to facilitate the entry of the packaging material web 60.
[0023]
On the other hand, FIG. 4 is a view of the aseptic chamber side ventilation tube 53 viewed from the aseptic chamber 31 side (from the direction of arrow A shown in FIG. 2). As shown in FIG. 2 and FIG. 2, the aseptic chamber-side ventilation tube 53 has a strip-shaped packaging material web therein by attaching a plate 55 having both ends bent upward below the upper plate 33 of the aseptic chamber 31. It is provided with a slit hole 48 through which the light passes through. One end of the plate 55 is connected to the partition plate 40, and the other end of the plate 55 is cut obliquely.
[0024]
Next, as shown in FIG. 2, an opening / closing lid 121 of the ventilation tube opening / closing device 120 is disposed near an obliquely cut open end of the sterile room side ventilation tube 53. Here, FIG. 5 is a perspective view showing the entire configuration of the ventilation tube opening / closing device 120.
[0025]
As shown in FIGS. 2 and 3, the ventilation cylinder opening / closing device 120 includes a rectangular opening / closing lid 121, a fixing plate 123 for fixing the opening / closing lid 121, and a rotation for rotatably supporting the fixing plate 123. It comprises a shaft 125 and a drive mechanism 127 for swinging the rotation shaft 125.
[0026]
That is, by driving the driving mechanism 127, the opening / closing lid 121 rotates from the position indicated by the solid line to the position indicated by the dotted line in FIG.
[0027]
When using this liquid packaging apparatus, the opening / closing lid 121 is moved to the position shown by the solid line in FIG. 2 by the driving mechanism 127 to open the sterile room side ventilation tube 53, and then the packaging material web 60 is slit. The packaging material web 60 is transferred through the hole 48 as described with reference to FIG. At this time, as described with reference to FIG. 2, high-temperature and high-speed sterile air blows through the slit hole 48 in a direction opposite to the transfer direction of the packaging material web 60, so that the hydrogen peroxide water adhering to the packaging material web 60 is Is introduced into the aseptic chamber 31 in a dried state.
[0028]
On the other hand, when the use of the liquid packaging apparatus is stopped, the opening / closing lid 121 is moved to the position indicated by the dotted line in FIG. At this time, the supply of the sterile air from the air supply pipe 57 is also stopped. However, since the opening / closing lid 121 closes the sterile room side ventilation tube 53, the vapor of the hydrogen peroxide solution in the sterilization room 11 is removed from the sterile room 31. Never invade. The ventilation tube opening and closing device 120 may be attached to the opening end side of the sterilization room side ventilation tube 47.
[0029]
【The invention's effect】
As described above in detail, the packaging material web drying mechanism according to the present invention has the following excellent effects.
(1) Despite the simple structure, the hydrogen peroxide water adhering to the packaging material web can be reliably evaporated and dried. Further, the vapor of the hydrogen peroxide solution filled in the sterilizing chamber does not enter the sterile chamber.
[0030]
{Circle around (2)} Since the ventilation tube opening / closing device is attached, even when the use of the liquid packaging device is stopped, the vapor of the hydrogen peroxide solution filled in the sterilizing chamber does not enter the sterile chamber.
[Brief description of the drawings]
FIG. 1 is a diagram showing a main part of the present invention.
FIG. 2 is an enlarged schematic cross-sectional view of a main part showing a portion of a drying ventilation tube 45;
FIG. 3 is a perspective view showing a sterilizing chamber side ventilation tube 47;
FIG. 4 is a view of the aseptic chamber side ventilation tube 53 as viewed from the aseptic chamber 31 side.
FIG. 5 is a perspective view showing the overall configuration of the ventilation tube opening / closing device 120.
FIG. 6 is a schematic perspective view showing a processing step of a packaging material web placed in the liquid packaging apparatus.
[Explanation of symbols]
11 Sterilization Room 31 Aseptic Room 40 Partition Plate 45 Dry Ventilation Tube 57 Air Supply Tube 60 Packaging Material Web 120 Ventilation Tube Opening / Closing Device 121 Opening / Closing Cover 127 Drive Mechanism

Claims (2)

A sterilizing chamber for sterilizing the strip-shaped packaging material web with an aqueous solution of hydrogen peroxide and a sterile chamber for forming the sterilized packaging material web into a tubular shape and filling a liquid therein are partitioned by a partition plate. An air-supply pipe formed in an elongated slit shape just enough to allow the packaging material web to pass therethrough, and provided therein with a drying ventilation tube through which the strip-shaped packaging material web passes, and a predetermined position in the sterile chamber for supplying dry sterile air. The packaging is characterized in that a part of the air in the sterile room is blown out at a high speed so that the hydrogen peroxide water adhering to the packaging material web evaporates and dries to the sterilization room through the drying ventilation tube. Material web drying mechanism. A ventilation opening / closing device having a plate-like opening / closing lid for closing the opening of the drying ventilation cylinder and a drive mechanism for swinging the opening / closing lid was attached near one of the opening ends of the drying ventilation cylinder. The mechanism for drying a packaging material web according to claim 1, wherein:

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