JP2014240304A - Beverage filling method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify sterilization treatment of a bottle in an inline system.SOLUTION: A preform (1) is made to run continuously, and the preform to which hydrogen peroxide mist or gas (K) is sprayed is heated, and then dried for performing preliminary sterilization treatment of the preform. The heated preform is subjected to blow molding in a blow mold (4) which is also made to run continuously to produce a container (2), and the container is taken out from the blow mold which runs continuously, and the container is made to run continuously. Then condensed mist (M) or gas (G) of hydrogen peroxide is sprayed to the container where heat by heating at the preform remains for performing actual sterilization treatment. Then, the container is subjected to air rinse by aseptic air, then a beverage (a) is filled in the container and the container is sealed with a lid (3). Steps from a preform supply step to a beverage filling step and a sealing step are performed in a chamber (41), and by spraying aseptic air into the chamber, the container which is subjected to sterilization treatment in the blow molding step is transported to the filling step without being contaminated.

Description

  The present invention relates to a beverage filling method and apparatus.

  Conventionally, sterilization with a disinfectant while transporting the preform, forming the preform into a bottle by a blow molding machine, filling the bottle with a beverage, and capping it into an aseptic package, the aseptic system A filling method has been proposed (see, for example, Patent Documents 1, 2, 3, 4, 5, 6, and 7).

  These are intended to be sterilized at the preform stage before bottle molding instead of sterilizing after bottle molding.

  In addition, since contaminating fine particles sometimes enter the blow molding machine, it has been proposed to rinse the bottle with a decontamination agent at the outlet of the blow molding machine (see, for example, paragraph 0076 of Patent Document 8).

Japanese Patent No. 3780165 Special table 2008-543619 Special table 2008-546605 gazette JP 2008-183899 A JP 2001-212874 A JP-A-8-282789 Japanese Patent No. 2885869 Japanese Patent No. 3903411

  In the prior art, after sterilizing a preform with a bactericidal agent, there is a possibility that bacteria may be mixed in the bottle during blow molding with high-pressure air or when the bottle is transported to the filling area. It is not impossible to sterilize and maintain the high-pressure air circuit, drawing rod, mold, and bottle transport area in the blow molding machine before making the bottle, but in that case, add sterilization equipment. Or many members need to be replaced with chemical-resistant materials, and the initial investment is huge.

  Further, in the method of rinsing the bottle with the decontaminating agent at the outlet of the blow molding machine, the removal of the bacteria mixed in the bottle tends to be incomplete. Since it is necessary to dry the decontaminating agent, there is a problem that facilities such as a blow molding machine become complicated and large.

  In addition, even if the preform with the disinfectant attached is heated in a state where it is inserted into a mandrel or spindle, the mouth of the preform can only be heated up to 40 ° C to 50 ° C, compared to other parts. The bactericidal effect is low and it is hard to say. That is, if the mouth of the preform is heated to a high temperature, the mouth may be deformed or the like and the sealing performance in the bottle may be impaired when the cap is put on. Therefore, heating of the mouth must be limited to the above temperature range. I don't get it.

  An object of the present invention is to eliminate such problems.

  In order to solve the above problems, the present invention employs the following configuration.

  That is, in the invention according to claim 1, the preform (1) sprayed with hydrogen peroxide mist or gas (K) is heated and dried while continuously running the preform (1). ) Is preliminarily sterilized, and the heated preform (1) is blow-molded in a continuous blow-molding mold (4) to form a container (2), and the continuous-running blow-molding mold (4) is used as a container. This sterilization is carried out by spraying the condensed mist (M) or gas (G) of hydrogen peroxide on the container (2) where heat from the heating in the preform (1) remains while taking out (2) and continuously running. Then, after rinsing the container (2) with aseptic air, the container (2) is filled with the beverage (a) and sealed with the lid (3), and the preform (1) is supplied. From The container (2) is filled with beverage and sealed in the lid (3) in the chamber (41), and sterilized in the blow molding process by blowing sterile air into the chamber (41) (2 ) Is transported to the filling process without being contaminated, and a beverage filling method is adopted.

    Further, the invention according to claim 2 preliminarily prepares the preform (1) by heating and drying the preform (1) sprayed with hydrogen peroxide mist or gas while continuously running the preform (1). The heated preform (1) is blow-molded in a blow mold (4) that continuously travels to make a container (2), and the blow mold (4) that continuously travels to the container (2). The sterilization was performed by spraying warm water (H) on the container (2) where heat from the heating in the preform (1) remained while taking out and continuously running, and then the beverage ( The chamber (41) is filled with a) and sealed with the lid (3), from the step of supplying the preform (1) to the step of filling the container (2) with the beverage (a) and sealing with the lid (3). ) Done in this Adopting a beverage filling method characterized in that aseptic air is blown into the chamber (41), the container (2) sterilized in the blow molding step is conveyed to the filling step without being contaminated. .

  According to the third aspect of the present invention, the preform (1) is molded into the container (2), the container (2) is filled with the beverage (a), and the container (2) is sealed with the lid (3). A conveyance path (21 etc.) for continuously running the reform (1) and the container (2) is provided, a nozzle (24) for spraying hydrogen peroxide mist or gas (K) on the preform (1), and hydrogen peroxide mist Alternatively, the preform (1) sprayed with the gas (W) is heated to pre-sterilize the preform and to a heating state suitable for blow molding, and the heated preform (1) is placed in a container ( 2) a mold (4) for blow molding, a main sterilization means (6) for main sterilizing the blow molded container (2), and a filler (a) for filling the beverage (a) into the main sterilized container (2) 39) and a container filled with beverage (a) ( ) With a lid (3) is provided along the conveying path, and the sterilizing means passes the container (2) where heat from the heating in the preform (1) remains. Sterilization nozzle (6) for spraying condensed mist (M) or gas (G) of hydrogen oxide onto container (2), and container (2) sprayed with condensed mist (M) or gas (G) of hydrogen peroxide And an air rinsing nozzle (F) for air rinsing by blowing sterile air (N) to the container (2), the preform (1) is formed into a container (2), the container (2) is filled with a beverage, The chamber (41) is surrounded by the chamber (41) until 2) is sealed with the lid (3), and aseptic air is blown into the chamber (41), the container (2) sterilized at the time of molding is not contaminated. Conveyed to the filler (39) To adopt a beverage filling apparatus that.

    In the invention according to claim 4, the preform (1) is molded into the container (2), the container (2) is filled with the beverage (a), and the container (2) is sealed with the lid (3). A conveyance path for continuously running the reform (1) and the container (2) is provided, and a nozzle (24) for spraying the hydrogen peroxide mist or gas to the preform (1) and a nozzle to which the hydrogen peroxide mist or gas is sprayed are provided. A heater (19b) that heats the preform (1) to pre-sterilize the preform (1) and that is in a heating state suitable for blow molding, and a molding that blow-molds the heated preform (1) into the container (a). The mold (4), the sterilization means for sterilizing the blow molded container (2), the filler (39) for filling the beverage (a) in the sterilized container (2), and the beverage (a) filled Cap for sealing the sealed container (2) (40) is provided along the conveying path, and the sterilizing means is a sterilizing nozzle for spraying hot water (H) on the container (2) in which heat by heating in the preform (1) remains. 46), the preform (1) is molded into the container (2), the container (2) is filled with the beverage (a), and the container (2) is sealed with the lid (3). The container (2) surrounded by the chamber (41) and sterilized air is blown into the chamber (41) so that the container (2) sterilized at the time of molding is conveyed to the filler (39) without being contaminated. A beverage filling apparatus characterized by the above is adopted.

  According to the present invention, preform (1) is preliminarily sterilized by heating and drying preform (1) sprayed with hydrogen peroxide mist or gas (K) while continuously running preform (1). Then, the heated preform (1) is blow-molded in a continuous blow-molding mold (4) to form a container (2), and the container (2) is removed from the continuously-running blow-molding mold (4). While taking out and continuously running, this sterilization is performed by spraying condensed mist (M) or gas (G) of hydrogen peroxide on the container (2) where heat due to heating in the preform (1) remains. After rinsing the container (2) with aseptic air, the container (2) is filled with the beverage (a) and sealed with the lid (3). From the preform (1) supply step, the container (2 ) Beverages Until the process of filling and sealing with the lid (3) is performed in the chamber (41), and aseptic air is blown into the chamber (41), the container (2) sterilized in the blow molding process is not contaminated. Since it is transported to the filling process, pre-sterilization is sterilized with extremely low concentration of hydrogen peroxide, so the molding machine has no problem with ordinary members, and is not a part other than the mouth (2a). It is possible to sterilize general bacteria, spore-forming bacteria, fungi such as mold and yeast. Therefore, when filling an acidic drink, mineral water, a carbonated drink, etc., the sterilization process by this sterilization can be reduced. That is, when the main sterilization is performed with hydrogen peroxide, the amount used, drug temperature, and concentration can be reduced. Further, since the amount of hydrogen peroxide used in the main sterilization can be reduced, in particular, when the preform (1) and the container (2) are made of PET that easily absorbs hydrogen peroxide, the container (2 ) To prevent excessive adsorption of hydrogen peroxide.

  In the present invention, the main sterilization is performed by spraying condensed mist (M) or gas (G) of hydrogen peroxide on the container (2) in which heat from the heating in the preform (1) remains. Subsequently, since air rinsing is performed with aseptic air, bacterial spores can be sterilized and a low-acid beverage having a pH of 4.6 or higher can be filled.

In the present invention, a hydrogen peroxide mist or gas (K) is sprayed to form a 35 wt% hydrogen peroxide condensation film on each preform (1) in an amount of 0.0035 μL / cm ² .
Since it adheres in the range of 0.35 μL / cm ² , it is possible to prevent the sterilization failure from occurring in the container (2), and to prevent the formation failure such as whitening, distortion, uneven molding, etc. be able to.

It is a partial notch front view which shows an example of the package manufactured by the filling method and apparatus which concern on this invention. It is explanatory drawing showing each process of the first half of the filling method which concerns on Embodiment 1, 2 of this invention. It is explanatory drawing showing each process of the second half of the filling method which concerns on Embodiment 1 of this invention. It is a vertical sectional view showing an example of a mist generator for generating hydrogen peroxide gas. It is a top view which shows the outline of an example of the filling apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing showing each process of the second half of the filling method which concerns on Embodiment 2 of this invention. It is a top view which shows the outline of an example of the filling apparatus which concerns on Embodiment 2 of this invention.

  The form for implementing this invention is demonstrated below.

<Embodiment 1>
According to the inline system in the first embodiment, the package shown in FIG. 1 can be manufactured as a final product.

  As shown in FIG. 1, the package includes a bottle 2 that is a container and a cap 3 that is a lid.

  The bottle 2 is made of PET in this embodiment. However, the bottle 2 is not limited to PET, but can be made using other resins such as polypropylene and polyethylene. A male screw 2 b is formed at the mouth 2 a of the bottle 2.

  The cap 3 is formed by injection molding or the like using a resin such as polypropylene, and the female screw 3a is formed simultaneously with the molding of the cap 3.

  The bottle 2 is filled with the sterilized beverage a in a state in which the inside has been previously sterilized. After the beverage a is filled, the cap 3 is placed on the mouth 2a of the bottle 2, and the mouth 2a of the bottle 2 is sealed by screwing the male and female screws 3a and 2b, thereby completing the package.

  The bottle 2 is formed as a container in the following procedure, and is made into a package after filling and sealing with a beverage.

  First, as shown in FIG. 2A, the preform 1 is continuously conveyed at a desired speed.

  The preform 1 is formed as a bottomed tubular body having a substantially test tube shape by PET injection molding or the like. The preform 1 is provided with a mouth 2a similar to that in the bottle 2 shown in FIG. A male screw 2 b is formed at the mouth 2 a simultaneously with the molding of the preform 1.

  Immediately after the conveyance of the preform 1 is started, hydrogen peroxide mist or gas K is sprayed from the nozzle 24 onto the preform 1.

  The nozzle 24 discharges mist or gas K generated by a mist generator having a structure similar to that of a mist generator 7 described later toward the preform 1 as shown in FIG.

As a result, a 35 mass% equivalent hydrogen peroxide condensation film is deposited and formed on the surface of the preform 1 in the range of 0.0035 μL / cm ^{2 to} 0.35 μL / cm ² . When this adhesion amount is less than 0.0035 μL / cm ² , a sufficient sterilizing effect cannot be obtained even by subsequent heating as shown in FIG. Further, if the adhesion amount is larger than 0.35 μL / cm ^2, defective molding such as whitening, spots, wrinkles, and deformation is likely to occur in the bottle when blow molding is performed as shown in FIG. .

The adhesion amount of the hydrogen peroxide condensation film in terms of 35% by mass to this preform 1 is more preferably 0.007 μL / cm ^{2 to} 0.07 μL / cm ² .

  As shown in FIG. 2B, a heater 19b is arranged in a tunnel shape along the conveyance path of the preform 1, and the preform 1 is heated while traveling by the heater 19b. The preform 1 is uniformly heated from about 90 ° C. to about 120 ° C. by this heating, and is brought into a heating state suitable for blow molding.

  However, since the mouth portion 2a affects the sealing performance with the cap 3, the mouth portion 2a can be suppressed to a temperature rise of about 40 ° C. to about 50 ° C. so as not to be deformed.

  At the time of heating, the preform 1 is suspended in an upright state (or an inverted state) by inserting a spindle (or mandrel) 43 into the mouth portion 2 a and rotated together with the spindle (or mandrel) 43. Heated uniformly at 19b.

  Further, the surface of the preform 1 is preliminarily sterilized by this heating process. That is, by drying while heating the preform 1 with the hydrogen peroxide condensation film adhered, the concentration of the hydrogen peroxide solution adhering to the cell surface is increased, and a high bactericidal effect can be obtained. Fungi, spore fungi, etc. are easily sterilized. Thereby, general bacteria, spore-forming bacteria, fungi such as mold / yeast attached to the surface of the preform 1 are suitably sterilized except those attached to the mouth 2a of the preform 1.

  As shown in FIG. 2 (C), the preform 1 that has been brought into a heating state suitable for blow molding by heating and pre-sterilized is subjected to blow molding and formed into a bottle 2 as a container.

  The mold 4, which is a mold for blow molding, is continuously clamped while continuously running at the same speed as the preform 1, and blow molding is performed on the preform 1 in the mold 4. After that, the mold is opened.

  The preform 1 is heated almost uniformly in the heating step shown in FIG. 2B so that the entire temperature rises to a temperature range suitable for molding. As shown in C), the entire spindle 43 is mounted in the mold 4. The blow nozzle 5 passes through the upper part of the mold 4 and the spindle 43 in the mouth portion 2 a of the preform 1 and is inserted into the preform 1.

  While the mold 4 is traveling, for example, primary blow air or secondary blow air is sequentially blown into the preform 1 from the blow nozzle 5, so that the preform 1 is finally molded in the cavity C of the mold 4. Expands to bottle 2 of the product.

  When the bottle 2 is molded in the mold 4 in this way, the mold 4 is opened while traveling, and the finished product of the bottle 2 is taken out of the mold 4 as shown in FIG. .

  The bottle 2 is continuously sterilized as shown in FIG. 3 (E) while continuously running after molding. The main sterilization is performed by spraying a mist M of hydrogen peroxide or a gas G, which is a sterilizing agent, from the sterilizing nozzle 6. The sterilizing nozzle 6 is disposed so as to face the mouth portion 2a of the preform 1. The hydrogen peroxide mist M or gas G discharged from the sterilizing nozzle 6 enters the bottle 2 from the bottle mouth 2a and sterilizes the inner surface of the bottle 2.

  Further, a tunnel 44 is formed at the continuous running portion of the bottle 2, and the mist M or gas G of hydrogen peroxide discharged from the sterilizing nozzle 6 stays in the tunnel 44, thereby effecting the outer surface of the bottle 2. Sterilize.

  Hydrogen peroxide mist M or gas G can be generated by, for example, a mist generator 7 shown in FIG.

  The mist generator 7 includes a hydrogen peroxide supply unit 8 that is a two-fluid spray that supplies an aqueous solution of hydrogen peroxide that is a sterilizing agent in the form of drops, and hydrogen peroxide supplied from the hydrogen peroxide supply unit 8. And a vaporizing section 9 for heating and vaporizing the spray to a non-decomposition temperature equal to or higher than its boiling point. The hydrogen peroxide supply unit 8 introduces an aqueous solution of hydrogen peroxide and compressed air from the hydrogen peroxide supply channel 8a and the compressed air supply channel 8b, respectively, and sprays the aqueous solution of hydrogen peroxide into the vaporization unit 9. ing. The vaporizing section 9 is a pipe having a heater 9a sandwiched between inner and outer walls, and the hydrogen peroxide spray blown into the pipe is heated and vaporized. The vaporized hydrogen peroxide gas G is ejected as condensation mist M from the discharge nozzle 9 b to the outside of the vaporizing section 9.

  The mist M shown in FIG. 3 (E) is this condensed mist. When the gas G is used instead of the mist M, as shown by a two-dot chain line in FIG. 4, a conduit 42 through which hot air H flows is connected to the tip of the discharge nozzle 9b, and the condensed mist M discharged from the discharge nozzle 9b is What is necessary is just to gasify with this hot air H and to make this gas G flow to the said sterilization nozzle 6 with a flexible hose or the like.

  The sterilizing nozzle 6 may be installed at a fixed position on the conveyance path of the bottle 2 or may be moved synchronously with the bottle 2.

  As shown in FIG. 3 (E), the mist M or gas G of hydrogen peroxide blown from the sterilizing nozzle 6 contacts the inner and outer surfaces of the bottle 2, while the bottle 2 is in the stage of the preform 1. Since the applied heat remains and is maintained at a predetermined temperature, it is sterilized efficiently. When the preform 1 is made of PET, the predetermined temperature is desirably 40 ° C to 75 ° C, and more desirably 50 ° C to 75 ° C. When the temperature is lower than 40 ° C., the bactericidal property is remarkably lowered. When the temperature is higher than 75 ° C., the bottle shrinks after molding.

  Even after the spraying of the hydrogen peroxide mist M or the gas G, the bottle 2 continuously runs and is subjected to air rinsing as shown in FIG. Air rinsing is performed by blowing sterile air N into the bottle 2 from the nozzle 45, and foreign matter, hydrogen peroxide, and the like are removed from the bottle 2 by the flow of the sterile air N. At that time, the bottle 2 is brought into an upright state. However, it is good also as an inverted state as needed.

  As described above, since the bottle is sterilized with hydrogen peroxide after preliminary sterilization at the preform stage, the amount of hydrogen peroxide used is small. Therefore, a hot water rinsing step for washing away hydrogen peroxide adhering to the bottle with water such as hot water after air rinsing is not necessary. However, there is no problem with aseptic water rinsing.

The hydrogen peroxide mist M or gas G used in this sterilization is as follows.
1) When using hydrogen peroxide mist M: In order to sterilize a bottle by performing only the conventional main sterilization, it is necessary to attach hydrogen peroxide in an amount of 50 μL / 500 mL bottle to 100 μL / 500 mL bottle to the bottle. However, when the preform was pre-sterilized as in the present invention, the sterilization effect Log 6 can be achieved by attaching the hydrogen peroxide mist M in an amount of 30 μL / 500 mL bottle to 50 μL / 500 mL bottle. did it.
2) When using the hydrogen peroxide gas G: In order to sterilize the bottle by performing only the conventional main sterilization, it is necessary to spray the hydrogen peroxide gas G having a gas concentration of 5 mg / L to 10 mg / L onto the bottle. However, when the preform was pre-sterilized as in the present invention, the sterilization effect Log 6 could be achieved by spraying the hydrogen peroxide gas G having a gas concentration of 1 mg / L to 5 mg / L. .

  After air rinsing, as shown in FIG. 3 (G), the beverage a is filled into the bottle 2 from the filling nozzle 10 and sealed with the cap 3 as a lid, as shown in FIG. 3 (H).

  Thus, the bottle 2 made into a package is collected and carried out to the market.

  A filling apparatus for carrying out the filling method is configured as shown in FIG. 5, for example.

  As shown in FIG. 5, this filling apparatus includes a preform feeder 11 that sequentially feeds a bottomed cylindrical preform 1 having a mouth 2a (see FIG. 2A) at a predetermined interval, and blow molding. A machine 12 and a filling machine 13 for filling and sealing the beverage a in the molded bottle 2.

  Between the preform feeder 11 and the filling machine 13, a preform conveying means for conveying the preform 1 (see FIG. 2A) on the first conveying path and a finished product-shaped cavity of the bottle 2. A mold conveying means for conveying a mold 4 having C (see FIG. 2C) on a second conveyance path connected to the first conveyance path, and a bottle 2 molded by the mold 4 A bottle transporting means for transporting on a third transport path connected to the second transport path is provided.

  The first conveying path of the preform conveying means, the second conveying path of the mold conveying means, and the third conveying path of the bottle conveying means communicate with each other, and the preform 1 is placed on these conveying paths. And a gripper (not shown) that conveys the bottle 2 while holding it.

  The preform conveying means includes a preform conveyor 14 that sequentially supplies the preform 1 at a predetermined interval on the first conveying path. Further, a row of wheels 15, 16, 17, and 18 for receiving and conveying the preform 1 from the end of the preform conveyor 14, and a conveyor 19 for receiving and running the preform 1 from the wheel 18 are provided.

  A nozzle 24 for spraying hydrogen peroxide mist or gas K is provided slightly upstream from the location where the preform conveyor 14 in the preform feeder 11 is connected to the wheel 15. Hydrogen peroxide mist or gas K is sprayed from the nozzle 24 toward the preform 1 before heating (see FIG. 2A). As a result, a thin hydrogen peroxide condensation film is uniformly formed on the surface of the preform 1.

  As described above, the nozzle 24 moves the mist or gas K generated by the mist generator having the same structure as the mist generator 7 shown in FIG. 4 toward the preform 1 as shown in FIG. To discharge.

By this nozzle 24, each preform 1 is desirably 0.0035 μL / cm ^{2 to} 0.35 μL / cm ² , more preferably 0.007 μL / cm ^{2 to} 0.07 μL / cm ² in terms of 35% by mass. A hydrogen peroxide condensation film is deposited.

  The nozzle 24 can also be installed at a fixed position on the outer periphery of the wheel 18 before the preform 1 reaches the conveyor 19, for example.

  The conveyor 19 has an endless transport chain extending in the horizontal direction, and a heating unit 19a is provided along the endless transport chain. Many spindles (or mandrels) 43 shown in FIG. 2B are attached to the endless transport chain at a constant pitch. Each spindle (or mandrel) 43 can rotate while traveling along with the traveling of the endless conveyance chain. As shown in FIG. 2 (B), a spindle (or mandrel) 43 is inserted into the preform 1 sent from the wheel 18 side to the conveyor 19 through its opening 2a, and the spindle (or mandrel) 43 is in an upright state. Retained.

  The preform 1 is received by the conveyor 19 via the preform conveyor 14 and the rows of wheels 15, 16, 17, and 18, and reciprocally moves in the heating unit 19 a by the conveyor 19. A heater 19b (see FIG. 2B) is stretched around the inner wall surface of the heating unit 19a, and the preform 1 conveyed by the conveyor 19 is heated by the heater 19b. The preform 1 rotates on the conveyor 19 as the spindle (or mandrel) rotates, and is uniformly heated by the heater 19b.

The film of hydrogen peroxide adhering to the surface of the preform 1 is also heated by the heating by the heater 19b. As described above, the adhesion amount of hydrogen peroxide converted to 35% by mass in this film is desirably 0.0035 μL / cm ^{2 to} 0.35 μL / cm ² , more desirably 0.007 μL / cm ^{2 to} 0.00. a 07μL / cm ^2, the concentration of hydrogen peroxide adhering to the cell surface increased by the heating, of the bacteria adhering to the surface of the preform 1, except those attached to the mouth portion 2a, of the most Bacteria can be sterilized.

That is, the preform 1 is heated to 90 ° C. to 120 ° C. in approximately 15 seconds to 30 seconds except for the mouth by heating at the heating unit 19a. When this temperature / time treatment is performed in a state where 0.07 μL / cm ² of hydrogen peroxide is adhered, a bactericidal effect of 3 Log reduction can be obtained against Bacillus subtilis spores which are spore bacteria. In addition, the fungus having a 6 log reduction can be obtained against Chaetomium globosum spores, which is a mold having heat resistance. Therefore, when the preform 1 is heated by the heating unit 19a as described above, most of the bacteria except for those attached to the mouth 2a out of the bacteria attached to the surface thereof are killed.

  The blow molding machine 12 receives a preform 1 heated by the heating section 19a of the preform supply machine 11 and sets a plurality of molds 4 and blow nozzles 5 (see FIG. 2C) that heat-mold the bottle 1 into the bottle 2. Prepare.

  In the blow molding machine 12, the second conveying path of the mold conveying means passes. This second transport path is constituted by a row of wheels 20, 21, 22, 17, and 23. The wheel 17 is shared between the rows of the wheels 20, 21, 22, 17, 23 and the rows of the wheels 15, 16, 17, 18 of the preform conveying means.

  A plurality of molds 4 and blow nozzles 5 are arranged around the wheel 21, and turn around the wheel 21 at a constant speed as the wheel 21 rotates.

  When the gripper (not shown) of the wheel 20 receives the preform 1 heated by the heating unit 19a of the preform feeder 11 together with the spindle 43 and transfers it to the mold 4 around the wheel 21, the split mold 4 is closed. The preform 1 is gripped as shown in FIG. The preform 1 in the mold 4 is formed into a finished product of the bottle 2 by being blown with the high pressure air for blow molding from the blow nozzle 5 while turning around the wheel 21 together with the mold 4 and the blow nozzle 5. The As shown in FIG. 2 (B), the preform 1 is uniformly heated to a predetermined temperature by the heater 19b, so that it is smoothly blow-molded.

Further, as described above, the adhesion amount of the hydrogen peroxide condensation film in terms of 35% by mass attached to each preform 1 is desirably 0.0035 μL / cm ^{2 to} 0.35 μL / cm ² , and more desirably 0. Since it is 007 μL / cm ^{2 to} 0.07 μL / cm ² , the bottle 2 is appropriately blow-molded without causing whitening, spots, deformation, or the like.

  When the preform 1 comes into close contact with the cavity C of the mold 4 and the bottle 2 is formed, the mold 4 is opened when it comes into contact with the wheel 22, and the bottle 2 and the spindle 43 are released. Then, the bottle 2 is received from the spindle 43 by a gripper (not shown) of the wheel 22.

  On the other hand, the spindle 43 which has released the bottle 2 returns to the conveyor 19 via the wheel 20 and continues to hold and carry another preform 1.

  The bottle 2 that has left the blow molding machine 12 and reaches the wheel 22 is inspected for molding defects and the like by an inspection device 47 disposed on the outer periphery of the wheel 22.

  Although not shown, the inspection apparatus 47 includes bottle body inspection means for determining the quality of the body of the bottle 2, support ring inspection means for determining the quality of the support ring 2c (see FIG. 1) of the bottle 2, and the bottle 2 Bottle neck top surface inspection means for determining the quality of the neck top surface of the bottle, bottle bottom portion inspection means for determining the quality of the bottom of the bottle 2, and temperature inspection means for determining the quality of the bottle 2 by detecting the temperature of the bottle 2 It comprises.

  The bottle body inspection means, the support ring inspection means, the bottle neck top surface inspection means, and the temperature inspection means are arranged along the outer periphery of the wheel 22.

  The bottle body inspection means, the support ring inspection means, and the bottle neck top surface inspection means are not shown in the figure, but each of the bottles 2 is imaged with a lamp and a camera, processed by an image processing device, and shaped, scratched, foreign matter, It is determined whether there is an abnormality in discoloration or the like.

  Although not shown, the temperature inspection means detects the temperature of the surface of the bottle 2 with a temperature sensor, and determines that the product is defective if it does not reach the predetermined temperature. That is, the bottle 2 that has not reached the predetermined temperature may be insufficiently sterilized even if it is sterilized with hydrogen peroxide later. On the contrary, when the temperature of the bottle 2 reaches a predetermined temperature, it can be sufficiently sterilized by the subsequent sterilization with hydrogen peroxide.

  The inspection device 47 is installed as necessary. Further, the bottle body inspection means, the support ring inspection means, the bottle neck top surface inspection means, and the temperature inspection means are selected as necessary.

  When the bottle 2 is inspected, the bottle 2 is removed from the conveyance path by a rejecting device (not shown), and only the acceptable product is conveyed from the wheel 22 through the wheel 17 to the wheel 23.

  On the outer periphery of the wheel 23, a sterilization nozzle 6 (see FIG. 3E) for performing the main sterilization on the bottle 2 is disposed. The bottle 2 molded by the mold 4 is sprayed with hydrogen peroxide mist M or gas G from the sterilization nozzle 6 to sterilize the bottle 2, and fungi remaining on the surface thereof. Sterilized. The bottle 2 at this stage retains heat from the preform 1 and heat from the mold, and this heat enhances the sterilizing effect of the hydrogen peroxide mist M or gas G.

  As described above, preliminary sterilization is performed on the preform 1 at the stage of the preform 1 shown in FIG. 2 (B), and most microorganisms are sterilized except those attached to the mouth 2a by this preliminary sterilization. Therefore, the bacteria that survived in the stage of the preform 1 by spraying the hydrogen peroxide mist M or gas G on the bottle 2 and the slight bacteria mixed in the blow molding process and the conveying process are sterilized in the main sterilization. Is done.

  In this sterilization of hydrogen peroxide with the mist M or gas G, as described above, since the preliminary sterilization is performed at the stage of the preform 1, the amount of hydrogen peroxide used can be reduced.

  The filling machine 13 has a third conveyance path of the bottle conveyance means inside. This third transport path has a row of wheels 27, 34, 35, 36, 37, 38.

  An air rinse nozzle 45 (see FIG. 3F) is disposed on the outer periphery of the wheel 27. Aseptic air is blown into the bottle 2 from the nozzle 45, and foreign matter and residual hydrogen peroxide are removed from the bottle 2.

  Further, a filler 39 for filling the aseptic bottle 2 with the beverage a is provided, and the cap 3 (see FIG. 1) is attached to the bottle 2 filled with the beverage a around the wheel 37 for sealing. A capper 40 is provided.

  In addition, since the filler 39 and the capper 40 may be the same as a well-known apparatus, description is abbreviate | omitted.

  The filling device is surrounded by a chamber 41, and the inside of the chamber 41 is divided into a sterilization zone and a gray zone. The preform feeder 11 and the blow molding machine 12 are arranged in the gray zone, and the filling machine 13 is arranged in the aseptic zone.

  Air sterilized with HEPA is constantly blown into the gray zone, whereby the bottle 2 sterilized at the time of molding is conveyed to the sterilization zone without being contaminated with microorganisms.

  Next, operation | movement of a filling apparatus is demonstrated with reference to FIG.2, FIG3 and FIG.5.

  First, the preform 1 is conveyed to the heating unit 19a by the row of the preform conveyor 14 and the wheels 15, 16, 17, and 18.

Before entering the heating unit 19a, hydrogen peroxide mist or gas K is sprayed from the nozzle 24 shown in FIG. 5 to the preform 1 as shown in FIG. Thereby, a thin hydrogen peroxide condensation film is formed on the surface of the preform 1. The amount of the hydrogen peroxide condensation film formed on each preform 1 is preferably 0.0035 μL / cm ^{2 in} terms of 35% by mass.
It is 0.35 μL / cm ² , more desirably 0.007 μL / cm ^{2 to} 0.07 μL / cm ² .

  In the heating unit 19a, the preform 1 is uniformly heated to a temperature range suitable for molding while being conveyed by the conveyor 19.

  In addition, by the heating in the heating unit 19a, the pre-sterilization of the preform 1 to which the hydrogen peroxide condensation film has adhered is performed, and most microorganisms adhering to the surface other than the mouth 2a of the preform 1 are sterilized. The

  The preform 1 heated and preliminarily sterilized by the heating unit 19 a is held by the mold 4 as shown in FIG. 2C when passing through the outer periphery of the wheel 21, and is blown by high-pressure air from the blow nozzle 5. In the cavity C, the bottle 2 is expanded to the finished product.

  The molded bottle 2 is taken out of the mold 4 by the gripper of the wheel 22 after the mold 4 is opened, inspected for the presence of molding defects, etc. by an inspection device, and then passed through the outer periphery of the wheel 23. As shown in FIG. 3E, hydrogen peroxide gas G or mist A is sprayed from the sterilizing nozzle 6 and subjected to the main sterilization.

  Since the heat applied by the heating unit 19 a remains in the bottle 2, the bottle 2 is effectively sterilized by the hydrogen peroxide gas G or mist A sprayed from the sterilization nozzle 6. By this sterilization, the bacteria remaining on the surface of the preform 1 are sterilized.

  The molded and sterilized bottle 2 flows from the wheel 23 to the downstream wheel 27 and is subjected to air rinsing by blowing sterile air around the wheel 27 from the nozzle 45 as shown in FIG. The

  Thereafter, the vehicle travels in the filling machine 13 while being transferred to a row of wheels 34, 35, 36, 37 and 38.

  In the filling machine 13, the bottle 2 is filled with the beverage a sterilized as shown in FIG. The bottle 2 filled with the beverage a is sealed with the cap 3 applied by the capper 40 (see FIGS. 1 and 3H) and discharged from the outlet of the chamber 41.

  As described above, since the filler 39 and the capper 40 are known devices, description of the method for filling the bottle 2 with the beverage and the method for sealing the bottle 2 is omitted.

<Embodiment 2>
As shown in FIG. 6 (E), in the second embodiment, the bottle 2 taken out from the mold 4 as shown in FIG. 2 (D) is rinsed with warm hot water H to perform the main sterilization. Done. In FIG. 6E, reference numeral 46 denotes a hot water rinsing nozzle that sprays aseptic hot water H. The temperature of the hot water H is maintained in a range where the bottle 2 is not deformed.

  The bottle 2 is pre-sterilized by being heated after being sprayed with hydrogen peroxide mist or gas K at the stage of the preform 1 shown in FIG. Most microorganisms attached to the surface of the preform 1 are already sterilized except those attached to the surface of the mouth 2a. Therefore, the bacteria that survived at the stage of the bottle 2 are sterilized by the warm water rinse.

  The bottle 2 after the hot water rinsing is filled with the beverage a as shown in FIG. 6 (F) and covered with the cap 3 as shown in FIG. 6 (G).

  The filling method according to the second embodiment is suitable for producing beverages that do not require sterilization of spore-forming bacteria such as acidic beverages other than low-acid beverages, carbonated beverages, and mineral water.

  As shown in FIG. 7, the filling device for carrying out the filling method of the second embodiment is provided with a wheel 49 instead of the wheel 27 in the filling machine 13 of the filling device shown in FIG. 5 of the first embodiment. It has a structured.

  Around the wheel 49, nozzles 46 for discharging hot water shown in FIG. 6 (E) are provided at predetermined intervals together with a gripper (not shown). The gripper of the wheel 49 can be turned upside down. The gripper grips the bottle 2 shown in FIG. 2D and travels upside down as shown in FIG. The nozzle 46 travels in synchronization with the traveling of the gripper and the bottle 2 and enters the bottle 2 from the mouth portion 2a of the bottle 2 to discharge the hot water H into the bottle 2. The hot water H fills the inside of the bottle 2, sterilizes the inner surface of the bottle, and then flows out of the bottle 2 from the mouth 2a.

  After the warm water rinsing, the bottle 2 is filled with the beverage a by the filling nozzle 10 of the filler 39 while traveling around the wheel 35 (FIG. 6F). The bottle 2 filled with the beverage a is sealed with the cap 3 applied by the capper 40 as shown in FIG. 6 (FIG. 6G), and discharged out of the filling device.

  In the second embodiment, the same parts as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The present invention can be implemented in various forms without being limited to the above-described embodiments. For example, the container to which the present invention is applied is not limited to a PET bottle, and can be applied to various resin containers. Molding of the container is not limited to injection blow, and can be molded by various blow molding such as direct blow. Moreover, the conveyance means which conveys a preform and a container is not limited to the wheel conveyance apparatus shown in FIG. 5, FIG. Various transport devices that can be transported at a predetermined transport speed in the order in which the containers are formed, for example, a belt transport device, a bucket transport device, and an air transport device can also be used.

DESCRIPTION OF SYMBOLS 1 ... Preform 2 ... Bottle 3 ... Cap 4 ... Mold 6 ... Disinfection nozzle 19b ... Heater 21 ... Wheel 24 ... Nozzle 39 ... Filler 40 ... Capper a ... Beverage G ... Hydrogen peroxide gas H ... Aseptic hot water M ... Hydrogen peroxide condensation mist K ... Hydrogen peroxide gas or mist

Claims (4)

  While the preform is continuously running, the preform sprayed with hydrogen peroxide mist or gas is heated and dried to pre-sterilize the preform, and the heated preform is blown in a blow mold that continuously runs. The container is made by molding, and the container is taken out from the continuously running blow mold and continuously run, while the hydrogen peroxide condensation mist or gas is blown onto the container where heat from the heating in the preform remains. After sterilizing and subsequently rinsing the container with aseptic air, the container is filled with a beverage and sealed with a lid, and from the preform supply process to the process of filling the container with a beverage and sealing with the lid Containers sterilized in the blow molding process by blowing in aseptic air into the chamber Beverage filling method being characterized in that so as to be conveyed into the filler without being dyed.   While the preform is continuously running, the preform sprayed with hydrogen peroxide mist or gas is heated and dried to pre-sterilize the preform, and the heated preform is blown in a blow mold that continuously runs. After making the container by molding, taking out the container from this continuously running blow mold and continuously running it, after performing the main sterilization by spraying hot water on the container where the heat due to heating in the preform remained, this The container is filled with a beverage and sealed with a lid, and the process from the preform supply process to the process of filling the container with a beverage and sealing with a lid is performed in the chamber, and blow molding is performed by blowing sterile air into the chamber. Drinks characterized in that containers sterilized in the process are transported to the filler without being contaminated Filling method.   A preform is formed in the container, the container is filled with a beverage, and a transport path is provided for continuously running the preform and the container until the container is sealed with a lid, and a nozzle that sprays hydrogen peroxide mist or gas on the preform; A heater that heats the preform sprayed with hydrogen peroxide mist or gas to pre-sterilize the preform and that is in a heating state suitable for blow molding; a mold for blow molding the heated preform into a container; A main sterilizing means for main sterilizing the blow molded container, a filler for filling the sterilized container with a beverage, and a capper for sealing the container filled with the beverage are provided along the conveyance path, and the main sterilization is performed. A means is a sterilizing nozzle for spraying condensed mist or gas of hydrogen peroxide on the container in which heat from the heating in the preform remains. An air rinsing nozzle that blows aseptic air to a container sprayed with hydrogen peroxide condensation mist or gas, the preform is formed into a container, the container is filled with a beverage, and the container is covered with a lid. Beverage filling device characterized in that until sealed, it is surrounded by a chamber, and aseptic air is blown into the chamber, the sterilized container is conveyed to the filler without being contaminated .   A preform is formed in the container, the container is filled with a beverage, and a transport path is provided for continuously running the preform and the container until the container is sealed with a lid, and a nozzle that sprays hydrogen peroxide mist or gas on the preform; A heater that heats the preform sprayed with hydrogen peroxide mist or gas to pre-sterilize the preform and that is in a heating state suitable for blow molding; a mold for blow molding the heated preform into a container; A main sterilizing means for main sterilizing the blow molded container, a filler for filling the sterilized container with a beverage, and a capper for sealing the container filled with the beverage are provided along the conveyance path, and the main sterilization is performed. The means includes a sterilizing nozzle that sprays hot water onto a container in which heat due to heating in the preform remains, and the preform contains The chamber is surrounded by a chamber until the container is filled with a beverage and the container is sealed with a lid, and sterilized air is blown into the chamber so that the container sterilized at the time of molding is not contaminated. A beverage filling device characterized by being conveyed.

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