JP2018162108A - Trouble recovery method of aseptic filling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trouble recovery method of an aseptic filling machine and the aseptic filling machine which can operate again quickly when a trouble has occurred in any part during operating of the aseptic filling machine.SOLUTION: A chamber except the chamber where a trouble has occurred keeps positive pressure inside while a door of the chamber where the trouble has occurred is opened, and the door is closed after removal of the trouble, and the chamber where the trouble has occurred is washed inside as necessary, and the chamber is sterilized by spraying sterilizer that is raised to a temperature in 50-95°C including peracetic acid of 500 ppm or more in the chamber, and by making peracetic acid of 0.01 g/cmor more adhere on equipment in the chamber and a surface of a wall, and aseptic water is sprayed in the chamber, and, after that, aseptic air is sprayed, and operation of the aseptic filling machine is started again.SELECTED DRAWING: Figure 1

Description

  The present invention is a sterile filling machine for producing a sealed product by sterilizing a container in a sterile atmosphere, filling it with a beverage or the like, and producing a sealed product. The present invention relates to a method for recovering a trouble of an aseptic filling machine that can restart the operation at an early stage when the operation of the filling machine is stopped.

  Conventionally, while the preform is continuously running, the preform is introduced into a heating unit, heated to a temperature for forming the preform into a container in the heating unit, and gas is blown into the heated preform to form a bottle. A container sterilization apparatus is proposed in which the bottle is sterilized, the sterilized bottle is filled with the sterilized contents, and the bottle filled with the contents is sealed with a sterilized cap (Patent Document 1). ). In such an apparatus, the inspection unit for inspecting the molded bottle, the sterilization unit for sterilizing the bottle determined to be appropriate by the inspection, the air rinsing unit for rinsing the sterilized bottle, and filling the contents into the air-rinsed bottle The filling part, the sealing part for sealing the bottle filled with the contents, and the discharge part for discharging the sealed bottle are shielded by the chamber. As needed, aseptic air is supplied into the chambers and the chambers are evacuated, so that appropriate pressures are maintained in the chambers and the sterility of the filling machine is maintained.

  Also, a sterilizer that sterilizes the preform, molds the sterilized preform into a bottle, fills the molded bottle with sterilized contents, and seals the bottle filled with the contents with a sterilized cap. Has also been proposed (Patent Document 2). In this case as well, a sterilization unit for sterilizing the preform, a heating unit for heating the preform to the molding temperature, a molding unit for molding the heated preform into a bottle, an inspection unit for inspecting the molded bottle, and appropriate by inspection The filling portion for filling the determined bottle with the content, the sealing portion for sealing the bottle filled with the content, and the discharge portion for discharging the sealed bottle are shielded by the chamber. As needed, aseptic air is supplied into the chambers and the chambers are evacuated, so that appropriate pressures are maintained in the chambers and the sterility of the filling machine is maintained.

  In the case of Cited Document 1, the appropriate pressure in each chamber is 40 Pa, which is the highest pressure in the filling portion chamber, and 10 Pa in the sterilizing portion chamber. As the pressure goes upstream and downstream, the pressure in each chamber is lowered. If such an appropriate pressure is maintained in each chamber, it is not necessary to provide a supply device or exhaust device for aseptic air in all the chambers. For example, if the air in the filling portion chamber flows into the sealing portion chamber and the inside of the sealing portion chamber is maintained at an appropriate pressure, the aseptic air supply device may not be provided in the sealing portion chamber. In fact, there is an example in which a sealing portion is provided in the same chamber as the filling portion without providing a chamber for shielding the sealing portion.

  Before the operation of the aseptic filling machine, the inside of the chamber that shields each part including the sterilization part downstream from the sterilization part is sterilized. After the filling portion where the contents are handled, the contents scattered in the chamber are cleaned and the chamber is sterilized. For cleaning and sterilization in the chamber, a method of introducing a sterilizing agent into the chamber and a method of spraying aseptic water have been proposed (Patent Document 3 and Patent Document 4). Since the sterilization part and air rinse part of patent document 1, and the heating part, shaping | molding part, and test | inspection part of patent document 2 are upstream rather than a filling part, it does not necessarily need to wash | clean. After such cleaning and sterilization is performed, the aseptic filling machine is operated, and the pressure in each chamber is maintained at an appropriate positive pressure by aseptic air during operation.

  If trouble occurs in any part of the aseptic filling machine, the operation of the aseptic filling machine must be stopped and the chamber containing the trouble occurrence part must be opened in order to eliminate the cause of the trouble. Rather, the sterility of the entire aseptic filling machine is impaired by opening the door of the chamber where the trouble has occurred. In order to resume the operation of the aseptic filling machine after removing the cause of the trouble, all the chambers that need to maintain the sterility of the aseptic filling machine must be cleaned and sterilized.

JP 2010-189023 A Japanese Patent Laying-Open No. 2015-116814 Japanese Patent Laid-Open No. 11-208782 JP2015-120555A

  The bottle aseptic filling machine is supplied with a preform, molded into a bottle, sterilized, then filled and sealed with the contents in a sterile atmosphere, and supplied with the preform and sterilized the preform. There is a form in which a sterilized preform is molded into a bottle, and the molded bottle is filled with the contents in a sterile atmosphere and sealed. In any aseptic filling machine, the inside of the chamber that shields the heating part, molding part, inspection part, sterilization part, air rinse part, filling part, sealing part, etc. should be operated after the necessary cleaning and sterilization. The sterility of the aseptic filling machine is maintained by starting and maintaining each chamber at an appropriate pressure with sterile air. In such an aseptic filling machine, when trouble occurs in any part and the operation of the aseptic filling machine is resumed after removing the trouble, necessary washing and sterilization must be performed again in all parts. Such a complicated operation when restarting the operation after the occurrence of the trouble of the aseptic filling machine reduces the production capacity of the aseptic filling machine and wastes energy.

  If the operation of the aseptic filling machine can be resumed by performing the necessary cleaning and sterilization only in the chamber of the part where the trouble has occurred, instead of cleaning and sterilizing all parts, increase the productivity, Energy consumption can also be reduced.

  The present invention has been made to solve the above-described problems. When a trouble occurs during the operation of the aseptic filling machine, only the inside of the chamber that shields the troubled part is made a non-sterile atmosphere. Maintain a sterile atmosphere in the chamber, and after removing the cause of the trouble, cleaning and sterilizing only the inside of the chamber that shields the troubled part, the trouble of the sterile filling machine can be resumed early An object of the present invention is to provide a recovery method from the above and an aseptic filling machine that enables the recovery method.

A method for recovering a trouble of an aseptic filling machine according to the present invention is an aseptic filling machine in which a sterilized bottle is filled with sterilized contents in a sterile atmosphere and sealed with a sterilized sealing member. In the aseptic filling machine having a chamber that shields each part constituting the aseptic filling machine, when trouble occurs in any part, the operation of the aseptic filling machine is stopped and the part where the trouble does not occur is shielded. In a state where the internal pressure of the non-trouble occurrence chamber that is a chamber to be positive pressure by supplying aseptic air, the trouble occurrence chamber door that shields the trouble occurrence portion is opened, and after the trouble is removed, Close the trouble occurrence chamber door and heat to 50 ° C to 95 ° C containing 500 ppm or more of peracetic acid in the trouble occurrence chamber. Sterile fungicide, after sterilization peracetic acid on the surface of the device and the wall of the occurrence of trouble in the chamber by spraying to adhere 0.01 g / cm ² or more the occurrence of trouble in the chamber, the occurrence of trouble in the chamber was It is characterized by restarting the operation of the aseptic filling machine after spraying water and then supplying aseptic air. A method for recovering a trouble of an aseptic filling machine according to another embodiment of the present invention is an aseptic filling machine in which a sterilized bottle is filled with sterilized contents in a sterile atmosphere and sealed with a sterilized sealing member. When a trouble occurs in any part of the aseptic filling machine having a shielding chamber for each part constituting the aseptic filling machine, the operation of the aseptic filling machine is stopped and the trouble occurs. In the state where the internal pressure of the non-trouble occurrence chamber, which is a chamber that shields the part that has not been made, is set to a positive pressure of 50 Pa or more by supplying aseptic air, the door of the trouble occurrence chamber that shields the part where the trouble has occurred is opened. After removing the trouble, after closing the trouble occurrence chamber and sterilizing the trouble occurrence chamber, the aseptic filling Characterized in that it resume the operation.

  Further, in the aseptic filling machine trouble recovery method according to the present invention, the part includes a preform sterilization unit for sterilizing the preform, a heating unit for heating the preform to a molding temperature, and a molding for molding the heated preform into a bottle. Part, bottle sterilization part for sterilizing the molded bottle, filling part for filling the molded bottle with the contents, sealing member sterilization part for sterilizing the sealing member, sealing part for sealing the bottle filled with the contents, sealed bottle It is preferable that it is any one of the discharge portions that discharges the gas.

  Further, in the method for recovering a trouble of the aseptic filling machine according to the present invention, the inside of the non-trouble generating chamber adjacent to the trouble generating chamber is started from the start of sterilization in the trouble generating chamber until the operation of the aseptic filling machine is restarted. It is preferred to sterilize.

  In the aseptic filling machine trouble recovery method according to the present invention, it is preferable that CIP and SIP of the filling valve are not performed until the operation of the aseptic filling machine is restarted after opening the door of the trouble occurrence chamber.

  Further, in the aseptic filling machine trouble recovery method according to the present invention, when the trouble occurrence chamber is a filling portion chamber that shields the filling portion, the filling nozzle of the filling valve is closed to clean the inside of the filling portion chamber. And sterilization is preferred.

  An aseptic filling machine according to another embodiment of the present invention is an aseptic filling machine that fills a sterilized bottle with sterilized contents in a sterile atmosphere and seals it with a sterilized sealing member. In the aseptic filling machine having a chamber that shields each part constituting the aseptic filling machine, when trouble occurs in any part, the operation of the aseptic filling machine is stopped and the trouble does not occur In a state where the internal pressure of the non-trouble occurrence chamber, which is a chamber for shielding the part, is set to a positive pressure of 50 Pa or more by supplying sterile air, the trouble occurrence chamber shielding the part where the trouble occurs is opened, and the trouble is After removing the trouble, the trouble chamber is closed, the inside of the trouble chamber is sterilized, and the operation of the aseptic filling machine is resumed. In order, the chamber is characterized in that it comprises a sterile air supply device capable of holding more than 50Pa pressure in the chamber.

  According to the trouble recovery method and the aseptic filling machine of the present invention, since the trouble can be removed by setting the non-sterile atmosphere only in the chamber that shields the site where the trouble has occurred, The time until the operation is restarted can be shortened, and the chamber for cleaning and sterilization for re-operation can be limited to only the chamber where the trouble has occurred, so that the energy consumption can be reduced.

It is a top view which shows the outline of the aseptic filling machine which concerns on Embodiment 1 of this invention. The process of the heating part and shaping | molding part of the aseptic filling machine which concerns on Embodiment 1 of this invention is shown, (A) is a preform supply process, (B) is a preform heating process, (C) is a blow molding process. (D) shows a bottle taking-out process. The process of the sterilization part and filling part of the aseptic filling machine which concerns on Embodiment 1 of this invention is shown, (E-1) is the bactericide gas spraying process performed by shielding a bottle with a tunnel, (E-2) is The sterilizing gas spraying process performed by inserting the sterilizing gas spraying nozzle into the bottle, (F-1) is the air rinsing process when the bottle is upright, and (F-2) is the air rinsing process when the bottle is upside down. (G) shows a filling step and (H) shows a sealing step. 1 shows a sterilizer gas generator incorporated in an aseptic filling machine according to Embodiment 1 of the present invention. 1 illustrates a sterilizing agent spray nozzle, a liquid spray nozzle, and a sterile air supply device provided in a chamber of an aseptic filling machine according to Embodiment 1 of the present invention. It is a top view which shows the outline of the aseptic filling machine which concerns on Embodiment 2 of this invention. The process of the preform sterilization part of the aseptic filling machine which concerns on Embodiment 2 of this invention is shown, (I) shows the sterilant gas spraying process to preform, (J) shows the air spraying process to preform. .

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated with reference to drawings.

(Embodiment 1)
FIG. 1 shows an aseptic filling machine according to Embodiment 1 of the present invention. An aseptic filling machine for sterilizing bottles. The outline of the aseptic filling machine comprising a preform supply, a heating part, a molding part, an inspection part, a bottle sterilization part, an air rinse part, a filling part, a sealing part and a discharge part is shown in FIG. The details will be described with reference to FIGS. 2, 3, 4 and 5. FIG. According to the first embodiment, even if a trouble occurs in any part of the aseptic filling machine, the operation of the aseptic filling machine can be resumed by cleaning or sterilizing only the trouble occurrence chamber. The stopping time of the filling machine can be shortened and energy consumption is also low.

(Outline of Embodiment 1)
As shown in FIG. 1, the aseptic filling machine according to the first embodiment is heated by a preform supply device 4 that supplies the preform 1, a heating unit 6 that heats the preform 1 to a temperature at which the preform 1 is formed into a bottle 2. The molded part 16 for molding the preform 1 into the bottle 2, the bottle sterilizing part 30 for sterilizing the molded bottle 2, the air rinse part 34 for rinsing the sterilized bottle 2, and the contents sterilized in the air-rinsed bottle 2 A filling part 39 for filling the cap 3, which is a sealing member, a cap sterilization part 52 for sterilizing the cap 3, a sealing part 44 for sealing the bottle 2 filled with the content part with the sterilized cap 3, and a conveyor for discharging the sealed bottle 2 50, an outlet 50a for discharging the bottle 2 to the non-sterile zone by the discharge portion 47 and the discharge conveyor 50. Here, the air rinse part 34 may not be provided.

  The heating unit 6 is the heating unit chamber 12, the molding unit 16 is the molding unit chamber 17, the bottle sterilization unit 30 is the bottle sterilization unit chamber 33, the air rinse unit 34 is the air rinse unit chamber 36, the filling unit 39 is the filling unit chamber 41, and the sealing unit 44. Is sealed part chamber 46, discharge part 47 is shielded by discharge part chamber 49, and outlet part 50a is shielded by outlet part chamber 50b. An atmosphere blocking chamber 27 is provided between the molding unit 16 and the bottle sterilization unit 30 so that the gas or mist of the sterilizing agent generated in the bottle sterilization unit 30 or a mixture thereof does not flow into the molding unit 16. The bactericidal gas or mist generated in the bottle sterilization unit 30 or a mixture thereof does not flow into the molding unit 16 when the atmosphere blocking chamber 27 is exhausted. Here, the heating unit 6 and the molding unit 16 may be shielded by a single chamber. Moreover, the cap sterilization part 52 and the sealing part 44 may also be shielded by a single chamber. Furthermore, the sealing part 44 and the discharge part 47 may also be shielded by a single chamber.

  During operation of the aseptic filling machine, the bottle sterilization part chamber 33, the air rinse part chamber 36, the filling part chamber 41, the sealing part chamber 46, the discharge part chamber 49 and the outlet part chamber 50b are sterilized by a sterilization filter. Air is supplied and the sterility of the aseptic filling machine is maintained by making the pressure in each chamber positive. The positive pressure is the highest in the filling part chamber 41 and is set lower as it goes upstream from the air rinsing part chamber 36 and the bottle sterilization part chamber 33. Moreover, it is set so low that it goes downstream with the sealing part chamber 46, the discharge part chamber 49, and the exit part chamber 50b. The atmosphere blocking chamber 27 is evacuated, so that the pressure in the atmosphere blocking chamber 27 is maintained substantially the same as the atmospheric pressure. For example, if the pressure in the filling unit chamber 41 is 20 Pa to 40 Pa, the pressure in the other chambers is lower than the pressure in the filling unit chamber 41.

  When trouble occurs in any one of the chambers, the chamber door must be opened in order to eliminate the trouble, and the trouble occurrence chamber, which is the trouble-occurring chamber, must be made into a non-sterile atmosphere. During operation of the aseptic filling machine, the pressure in each chamber may be low as long as sterility is maintained. However, when removing the trouble, in order to prevent the inflow of bacteria and the like from the trouble occurrence chamber that has become a non-sterile atmosphere, and to maintain the sterility in the non-trouble occurrence chamber, which is a chamber in which no trouble has occurred, The pressure in the trouble chamber must be kept relatively high. The pressure in the non-trouble generating chamber is preferably 30 Pa or more, more preferably 50 Pa or more. By setting the pressure to 50 Pa or more, the inside of the non-trouble generating chamber can be maintained in a sterile atmosphere even if the trouble generating chamber is set to a non-sterile atmosphere while the aseptic filling machine is stopped. Accordingly, the bottle sterilization part chamber 33, the air rinse part chamber 36, the filling part chamber 41, the sealing part chamber 46, the discharge part chamber 49 and the outlet part chamber 50b, which must maintain an aseptic atmosphere during operation of the aseptic filling machine, A sterile air supply device capable of maintaining the pressure in each chamber at preferably 30 Pa or higher, more preferably 50 Pa or higher is provided.

(Details of Embodiment 1)
First, the preform 1 shown in FIG. 2A is continuously conveyed from the preform supply device 4 shown in FIG. 1 to the heating unit 6 by the preform supply conveyor 5 at a desired speed.

  The preform 1 in the present embodiment is a bottomed tubular body having a test tube shape, and a mouth 1a similar to the bottle 2 shown in FIG. A male screw is formed at the mouth 1a simultaneously with the molding of the preform 1. In addition, a support ring 1b for conveyance is formed in the preform 1 below the mouth portion 1a. The preform 1 or the bottle 2 is gripped by the gripper 22 through the support ring 1b and travels through the aseptic filling machine. The preform 1 is molded by injection molding, compression molding or the like. The preform 1 is made of a thermoplastic resin such as polyethylene terephthalate, polyethylene naphthalate, polypropylene, or polyethylene, and may be a single resin or a mixture of these resins, or may include a recycled thermoplastic resin. Further, in order to impart barrier properties, a thermoplastic resin such as polyamide having an aromatic amine such as an ethylene-vinyl alcohol copolymer or metaxylylenediamine as a monomer may be included as a layer or as a mixture.

  The preform 1 supplied to the heating unit 6 is conveyed by wheels 7 and 8 provided with a number of grippers 22 at a constant pitch, and reaches the heating unit conveyance wheel 9. Here, as shown in FIG. 2B, the gripper 22 is released, and the spindle 19 is inserted into the mouth 1a of the preform 1 and conveyed.

  As shown in FIG. 2B, the preform 1 is heated to a temperature suitable for subsequent blow molding by an infrared heater 14 or other heating means. This temperature is preferably 90 ° C to 130 ° C.

  Note that the temperature of the mouth portion 1a of the preform 1 is suppressed to a temperature of 70 ° C. or lower in order to prevent deformation and the like.

  As shown in FIG. 2B, the preform 1 has a spindle 19 inserted into the mouth 1a, is heated by the infrared heater 14, and is conveyed by the endless chain 13 while rotating. The spindle 19 is provided on the endless chain 13 at regular intervals. Endless chain 13 is rotated by pulleys 10 and 11. By inserting a mandrel into the preform 1 instead of the spindle 19, it is possible to convey the preform 1 while rotating it in an inverted state.

  The heated preform 1 is released from the spindle 19, is gripped by the gripper 22, passes through the wheel 15, and is conveyed to the molding wheel 18 of the molding unit 16. As shown in FIG. 2 (C), the preform 1 is blow-molded into the bottle 2 by the mold 20 provided in the molding wheel 18. A plurality of molds 20 and blow nozzles 21 are arranged around the molding wheel 18 and turn around the molding wheel 18 at a constant speed as the molding wheel 18 rotates. When the heated preform 1 arrives, the mold 20 sandwiches the preform 1. Subsequently, the blow nozzle 21 is joined to the preform 1, and a stretching rod (not shown) is guided into a hole provided in the blow nozzle 21, inserted into the preform 1, and the preform 1 is longitudinally stretched. A bottle 2 is formed in the mold 20 by blowing a gas such as air into the preform 1 and laterally stretching it. As shown in FIG. 2D, the molded bottle 2 is taken out from the mold 20, the support ring 1 b is gripped by the gripper 22 provided on the inspection wheel 23, and delivered to the inspection wheel 23.

  When the molded bottle 2 is inspected by the inspection equipment 24 provided around the inspection wheel 23, the bottle temperature, the bottle body, the support ring, the top of the bottle mouth, the bottom of the bottle, etc. Is discharged out of the aseptic filling machine by a discharge device (not shown). Although the bottle is inspected in the molding part chamber 17, it may be shielded by a separate chamber as an inspection part.

  In the bottle temperature inspection, the surface temperature of the bottle 2 is inspected to determine whether the bottle 2 is good or bad. The temperature sensor is, for example, an infrared radiation thermometer (infrared radiation camera), but other thermometers can also be used. It is necessary for the bottle 2 to properly sterilize that the residual heat from the bottle formation remains in the bottle 2. The temperature detected by the temperature sensor is preferably 50 ° C. or higher.

  Further, the bottle body, the support ring, the top of the bottle mouth, and the bottom of the bottle are imaged by a camera, and the state of each part is inspected. The captured image is processed by the image processing apparatus, and it is determined whether there is an abnormality such as a scratch, a foreign object, deformation, or discoloration. The bottle 2 exceeding the allowable range is determined to be abnormal.

  The bottle 2 that has not been determined to be abnormal by the inspection by the inspection equipment 24 has the molding unit 16 and the bottle sterilization unit so that the gas or mist of the bactericide generated in the bottle sterilization unit 30 or a mixture thereof does not flow into the molding unit 16. 30 is conveyed to the bottle sterilization unit 30 through the wheels 25 and 26 in the atmosphere blocking chamber 27 provided between them.

  The bottle 2 conveyed to the bottle sterilization unit 30 is sterilized at the wheel 28. FIG. 3 (E-1) shows a gas spraying process of a sterilizing agent to the bottle 2 for sterilizing the bottle 2. In order to spray the sterilizing gas on the bottle 2, a sterilizing gas spray nozzle 31 is provided. The disinfectant gas spray nozzle 31 is fixed so that the nozzle hole at the tip thereof can directly face the opening of the mouth portion 1a of the bottle 2 that travels directly below. Further, if necessary, a sterilizing gas blowing tunnel 32 is provided below the sterilizing gas blowing nozzle 31 along the traveling path of the bottle 2 as shown in FIG. The number of the sterilizing gas spray nozzles 31 may be one or plural. The disinfectant gas sprayed on the bottle 2 flows into the bottle 2 and sterilizes the inner surface of the bottle 2. At this time, the bottle 2 travels through the sterilizing agent gas blowing tunnel 32, so that the sterilizing agent gas or mist or a mixture thereof also flows to the outer surface of the bottle 2, and the outer surface of the bottle 2 is sterilized.

  Further, as shown in FIG. 3 (E-2), the sterilizing agent gas spray nozzle 31 is made to follow the conveyance of the bottle 2, and the sterilizing agent spray nozzle 31 is inserted into the bottle 2 so that the disinfectant gas or mist Or you may spray these mixtures directly on the inner surface of the bottle 2. The sterilizing gas or mist overflowing from the bottle 2 or a mixture thereof collides with a guide member 31 a provided surrounding the sterilizing gas spray nozzle 31, flows to the outer surface of the bottle 2 and contacts the outer surface of the bottle 2. To do. The guide member 31 a is provided with a flange portion coaxial with the nozzle 31 and an annular wall portion protruding outward from the flange portion.

  The disinfectant gas or mist or a mixture thereof is a disinfectant gasified by the disinfectant gas generator 55 shown in FIG. 4 or a mist condensed with the disinfectant gasified or a mixture thereof. The sterilizing agent gas generator 55 heats the sterilizing agent supply unit 56 that is a two-fluid spray nozzle that supplies the sterilizing agent in the form of drops, and the sterilizing agent supplied from the sterilizing agent supply unit 56 to a decomposition temperature or lower. A vaporization unit 57 for vaporization. The sterilizing agent supply unit 56 introduces the sterilizing agent and the compressed air from the sterilizing agent supply path 56a and the compressed air supply path 56b, respectively, and sprays the sterilizing agent into the vaporizing unit 57. The vaporizing section 57 is a pipe having a heater 57a sandwiched between inner and outer walls, and heats and vaporizes the bactericide blown into the pipe. The vaporized bactericidal gas is ejected from the bactericidal gas spray nozzle 31 to the outside of the vaporizing section 57. The vaporizing section 57 may be heated by dielectric heating instead of the heater 57a.

  As operating conditions of the sterilizing agent supply unit 56, for example, the pressure of the compressed air is adjusted in a range of 0.05 MPa to 0.6 MPa. Further, the bactericide may be a gravity drop or a pressure may be applied, and the supply amount can be freely set. For example, the bactericide is supplied to the bactericide supply path 56a by 1 g / min. ~ 100 g / min. Supplied in the range of Moreover, the sprayed disinfectant vaporizes by heating the inner surface of the vaporization part 57 from 140 degreeC to 450 degreeC.

  The germicide gas is sprayed from the germicide gas spray nozzle 31 to the bottle 2 as shown in FIG. The amount of spray of the germicide gas or mist or a mixture thereof is arbitrary, but the spray amount is determined by the amount of germicide supplied to the germicide gas generator 55 and the spray time. A plurality of bactericidal gas generators 55 may be provided. The amount of spraying also varies depending on the size of the bottle 2.

  The disinfectant preferably contains at least hydrogen peroxide. The content is suitably in the range of 0.5% to 65% by mass. If it is less than 0.5% by mass, the sterilizing power may be insufficient, and if it exceeds 65% by mass, it becomes difficult to handle for safety. Further, it is more preferably 0.5% by mass to 40% by mass, and it is easier to handle at 40% by mass or less, and the concentration of the disinfectant in the bottle 2 after sterilization can be reduced because of low concentration. .

  When the sterilizing agent is hydrogen peroxide, the amount of hydrogen peroxide water sprayed is as follows. The amount of hydrogen peroxide adhering to the inner surface of the bottle 2 by the hydrogen peroxide water gas sprayed from the gas spray nozzle 31 of the sterilizing agent to the inner surface of the bottle 2 is the amount of hydrogen peroxide water containing 35% by mass of hydrogen peroxide. The amount is preferably 30 μL / bottle to 150 μL / bottle, more preferably 50 μL / bottle to 100 μL / bottle. Further, the hydrogen peroxide concentration of the hydrogen peroxide water sprayed on the bottle 2 is preferably 2 mg / L to 20 mg / L, more preferably 5 mg / L to 10 mg / L.

  In addition, the bactericidal agent contains water, but alcohols such as methyl alcohol, ethyl alcohol, isopropyl alcohol, normal propyl alcohol, and butyl alcohol, ketones such as acetone, methyl ethyl ketone, and acetylacetone, glycol ethers, and the like or You may include 2 or more types.

  Furthermore, bactericides include organic acids such as peracetic acid and acetic acid, chlorine compounds such as sodium hypochlorite, compounds having a bactericidal effect such as ozone, cationic surfactants, nonionic surfactants, phosphate compounds, etc. The additive may be included.

  As shown in FIG. 1, the bottle 2 sterilized by the bottle sterilization unit 30 is conveyed to the air rinse unit 34 through the wheel 29. In the air rinse wheel 35 shown in FIG. 1, the bottle 2 is sprayed with aseptic air onto the bottle 2 in an upright state by an air rinse nozzle 38 as shown in FIG. Aseptic air may be at normal temperature, but is preferably heated. Aseptic air discharges the sterilizing agent remaining inside the bottle 2, decomposes the remaining sterilizing agent, further enhances the sterilizing effect, and has an effect of eliminating foreign matter in the bottle 2. Further, as shown in FIG. 3 (F-2), the bottle 2 may be inverted and sprayed with sterile air into the bottle 2. In this case, it is more effective than the upright state for removing foreign substances. Further, as in the case of the sterilizing agent spray nozzle 31 in FIG. (E-2), by providing a guide member surrounding the air rinse nozzle 38, aseptic air introduced into the bottle 2 and overflowing from the mouth 1a is discharged. Colliding with the guide member, the outer peripheral portion of the mouth portion 1a is also rinsed, the temperature of the outer peripheral portion of the mouth portion 1a is increased, and the sterilizing effect of the outer peripheral portion of the mouth portion 1a is enhanced.

  The air rinse nozzle 38 can be moved up and down, and aseptic air may be blown into the bottle 2. Alternatively, aseptic air may be introduced into the bottle 2 instead of aseptic air to rinse the inside of the bottle 2. Furthermore, the bottle 2 may be rinsed using a combination of sterile air and sterile water.

  As shown in FIG. 1, the bottle 2 air-rinsed by the air rinse section 34 is conveyed to the filling section 39 via the wheel 37. In the filling unit 39, the contents are filled into the bottle 2 by the filling nozzle 42 by the filling wheel 40 shown in FIG. 1 as in the filling step shown in FIG. The contents are sterilized in advance, and the bottle 2 is filled with a certain amount of contents such as a beverage by the filling nozzle 42 that runs synchronously with the bottle 2.

  The bottle 2 filled with the contents is conveyed to the sealing part 44 through the wheel 43 shown in FIG. In the sealing wheel 45 provided in the sealing part 44, the cap 3 which is a sealing member sterilized by the cap sterilization part 52 is connected to the cap supply wheel by the sterilization cap conveyance path 54 as in the sealing process shown in FIG. 54a and the cap receiving wheel 54b are supplied to the sealing wheel 45, and the bottle 2 is sealed by being wound around the mouth 1a of the bottle 2 by a capper (not shown).

  The sealed bottle 2 is transferred from the gripper 22 of the sealing wheel 45 to the gripper 22 of the discharge wheel 48 of the discharge unit 47. The bottle 2 delivered to the discharge wheel 48 is placed on the discharge conveyor 50. The bottles 2 placed on the discharge conveyor 50 are discharged from the outlet chamber 50b to the outside of the aseptic filling machine.

  The inside of the bottle sterilization part chamber 33, the air rinse part chamber 36, the filling part chamber 41, the sealing part chamber 46, the discharge part chamber 49 and the outlet part chamber 50b is sterilized before the operation of the aseptic filling machine. Therefore, as shown in FIG. 5, each chamber is provided with a disinfectant spray nozzle 58 and a liquid spray nozzle 59.

  As the sterilizing agent spray nozzle 58, a one-fluid spray or a two-fluid spray that mixes and sprays a sterilizing agent with compressed air is used, and the sterilizing agent is sprayed so as to adhere to the entire area in each chamber requiring sterilization. Each chamber is sterilized by the sprayed sterilizing agent. The disinfectant spray nozzle 58 is arranged so that the disinfectant adheres to the entire area in each chamber. As the disinfectant, the same disinfectant used for disinfecting the bottle 2 can be used, and it is preferable to use a disinfectant containing peracetic acid or hydrogen peroxide. The sterilizing agent may be sprayed several times with different sterilizing agents.

When peracetic acid is included as a disinfectant, the concentration of peracetic acid is 500 ppm or more, preferably 1000 ppm or more. The sterilization conditions in this case are as follows: the disinfectant is heated to 50 ° C. to 95 ° C., preferably 60 ° C. to 95 ° C., and peracetic acid is 0.01 g / cm ^{2 on} the surface of the apparatus in the chamber and the wall, preferably 0. The disinfectant is sprayed into the chamber so that ¹ g / cm ² or more adheres. The spraying time is preferably 30 seconds to 30 minutes. Although it may be performed for 30 minutes or more, productivity decreases.

  After the sterilizing agent is sprayed from the sterilizing agent spray nozzle 58, aseptic water is sprayed over the entire area of each chamber by the liquid spray nozzle 59. The disinfectant remaining in each chamber is washed with the sterile water. The liquid spray nozzle 59 is arranged so that the liquid is sprayed over the entire area in each chamber. Sterile water is water that has been sterilized by heating at 121.1 ° C. or higher for 4 minutes or longer or passing through a sterilizing filter. The aseptic water sprayed from the liquid spray nozzle 59 into each chamber is preferably heated to 60 ° C to 100 ° C. As the liquid spray nozzle 59, for example, a spray nozzle using a spin ball is used. Sterile water may be sprayed from the disinfectant spray nozzle 58 without providing the liquid spray nozzle 59.

  Aseptic water is sprayed in each chamber after spraying the sterilizing agent, but before the sterilizing agent is sprayed, the contents are scattered in the filling chamber 41, the sealing chamber 46, the discharge chamber 49, and the outlet chamber 50b. In the case of cleaning, the cleaning liquid is sprayed from the liquid spray nozzle 59, and the inside of each chamber is cleaned. The cleaning liquid is water or water containing an acidic compound or a basic compound. The water may be water or pure water sterilized by heating or filtration, ion exchange water, distilled water, or tap water. The acidic compound is an inorganic acid such as hydrochloric acid, nitric acid or phosphoric acid or an organic acid such as acetic acid, formic acid, octanoic acid, oxalic acid, citric acid, succinic acid or gluconic acid. The basic compound is an inorganic basic compound such as sodium hydroxide or potassium hydroxide, or an organic basic compound such as ethanolamine or diethylamine. In addition, non-ionic sequestering agents such as alkali metal salts, alkaline earth metal salts, ammonium salts and ethylenediaminetetraacetic acid of organic acids, anionic surfactants, cationic surfactants, polyoxyethylene alkylphenyl ethers and the like. Contains ionic surfactants, solubilizers such as sodium cumene sulfonate, acid polymers such as polyacrylic acid or metal salts thereof, corrosion inhibitors, preservatives, antioxidants, dispersants, antifoaming agents, etc. It doesn't matter. Further, when these cleaning liquids are heated to 50 ° C. or higher, they also have a sterilizing action, so they may be used as a sterilizing agent for sterilizing the inside of the chamber.

  Each chamber is provided with a sterile air supply device 60 as shown in FIG. A sterile air supply device 60 is connected to the upper part of each chamber. The aseptic air supply device 60 includes a blower 61, a heating device 62 and a sterilization filter 63. The air from the blower 61 is heated by the heating device 62 and sterilized by the sterilization filter 63, and then supplied as sterile air into each chamber. As shown in FIG. 5, the sterilization filter 63 is provided perpendicular to the top surface of the chamber, in order to prevent the cleaning liquid and the sterilizing agent from adhering to the surface of the sterilization filter 63. . The sterilization filter 63 may be provided in parallel to the chamber surface.

  In addition, each chamber is provided with an exhaust device 64 and maintains the pressure in each chamber at an appropriate value in conjunction with the aseptic air supply device 60.

  Aseptic air supplied from the aseptic air supply device 60 vaporizes and removes aseptic water sprayed from the liquid spray nozzle 59 remaining in each chamber. At this time, the sterilized air is heated, so that the sterilized water is quickly removed by vaporization. The aseptic air supply device 60 supplies aseptic air into each chamber in order to maintain sterility in each chamber when the aseptic filling machine is operated. In this case, the sterile air may not be heated.

  In the sterilization before the aseptic filling machine is operated, the surface of the sterilization filter 63 can be sterilized by spraying the sterilizing agent with the sterilizing agent spray nozzle 58. The surface of the sterilization filter 63 may be sterilized with hydrogen peroxide water gas, mist, or a mixture thereof.

  The order and the number of times of sterilizing agent spray, aseptic water spray and aseptic air supply are arbitrary, and any conditions may be used as long as each chamber is sterilized.

  Trouble occurs at any part while the aseptic filling machine is in operation. For example, the trouble may be that the bottle 2 or the cap 3 bites into each wheel or the gripper 22 and cannot be conveyed. In addition, there are cases where a number of bottles 2 fall into each chamber due to poor conveyance, and the bottles 2 cannot be conveyed unless they are removed. In some cases, the bottle 2 and the cap 3 used at the time of the previous manufacturing are not recovered, but the chamber is sterilized and discovered, and then sterilization is required again. In addition, the globes installed in each chamber may be damaged and need to be replaced.

  When such a trouble occurs, the operation of the aseptic filling machine is stopped, but for the non-trouble occurrence chamber, the operation of the sterile air supply device is continued and the internal pressure of the non-trouble occurrence chamber is kept positive. And In that case, it is preferable that the pressure in the non-trouble generating chamber is higher than the pressure during operation of the aseptic filling machine. Thereby, when the door of the trouble occurrence chamber is opened and the chamber is made a non-sterile atmosphere, the inflow of bacteria and the like from the opening of the non-trouble occurrence chamber into the non-trouble occurrence chamber can be further suppressed. In particular, the pressure in the non-trouble generating chamber adjacent to the trouble generating chamber is preferably higher than the pressure during operation of the aseptic filling machine. Therefore, it is preferable that the sterilized air supply device 60 of each chamber has a capability of setting the pressure in each chamber to 30 Pa or more, preferably 50 Pa or more. Thereafter, the door of the chamber that shields the site where the trouble has occurred is opened, and the trouble is removed by making the inside of the trouble-occurring chamber a non-sterile atmosphere.

  Before opening the door of the trouble occurrence chamber, it is preferable that the opening of the non-trouble occurrence chamber is closed to the extent that it does not contact the equipment existing in the opening. The equipment present in the opening is the gripper 22 and a holding member that holds the gripper 22, and if it is a cap sterilization unit 52, it is a cap conveyance member that introduces the cap 3 into the cap sterilization unit 52, or an outlet for discharging the product If it is part 50a, it will be discharge conveyor 50. In order to close the opening, as a closing member that does not contact the gripper 22, a cap entrance shutter 53 that does not contact the cap conveying member and a discharge conveyor shutter 51 that does not contact the discharge conveyor 50 are provided. By closing the opening, it is possible to further suppress the inflow of bacteria and the like from the opening when the door of the trouble occurrence chamber is opened and the chamber is in a non-sterile atmosphere.

  After removing the trouble in the trouble chamber, close the opened door. After that, the troubled chamber is subjected to the same cleaning and sterilization operations as before the aseptic filling machine is operated. First, cleaning is performed as necessary, and after sterilizing agent is sprayed from the sterilizing agent spray nozzle 58 into the chamber, aseptic water is sprayed by the liquid spray nozzle 59. Furthermore, heated aseptic air is supplied into the chamber by the aseptic air supply device 60, and the inside of the chamber is dried. During this time, the pressure in the non-trouble generating chamber is maintained at a positive pressure by supplying sterile air.

  If there is a possibility that bacteria or the like are flowing into the non-trouble occurrence chamber from the trouble occurrence chamber to the non-trouble occurrence chamber through the opening, the same operation as before the aseptic filling machine is operated is adjacent to the trouble occurrence chamber. It is preferable to carry out also for a non-trouble generating chamber. That is, it is preferable to sterilize the inside of the non-trouble occurrence chamber adjacent to the trouble occurrence chamber.

  Conventionally, even if the trouble occurrence chamber is not the filling section chamber 41, when the trouble occurrence chamber door is opened, all the chambers become a non-sterile atmosphere, so cleaning (CIP) and sterilization (SIP) in the filling valve of the filling section 39 are performed. Had to do. According to the present invention, when the trouble occurrence chamber is not the filling section chamber 41, the inside of the filling section chamber 41 is maintained in a sterile atmosphere until the operation of the aseptic filling machine is resumed after opening the trouble occurrence chamber door. Therefore, it is not necessary to perform cleaning (CIP) and sterilization (SIP) in the filling valve for the filling valve including the filling nozzle 42 of the filling unit 39.

  Even if the trouble occurrence chamber is the filling chamber 41, the filling nozzle 42 is closed with a CIP cup or the like and then the door is opened to prevent bacteria and the like from being mixed into the product liquid remaining in the filling valve. it can. Thus, by closing the filling nozzle 42, it is not necessary to perform cleaning (CIP) and sterilization (SIP) in the filling valve. Further, the filling nozzle 42 is closed to clean and sterilize the inside of the filling portion chamber 41, thereby preventing the cleaning liquid and the sterilizing agent from being mixed into the product liquid remaining in the filling valve. If a trouble occurs in the filling part chamber 41, the product liquid is closed by closing the filling nozzle 42 and pressurizing the product liquid storage tank with sterile air until the operation of the aseptic filling machine is resumed after the trouble occurs. It is preferable to maintain the supply pipe in a positive pressure state. This measure can further suppress the inflow of bacteria and the like from the filling nozzle 42.

  If the pressure in each chamber has been increased after the same operation as before the operation of the aseptic filling machine is completed for the trouble occurrence chamber, set the pressure in each chamber to a pressure suitable for the operation of the aseptic filling machine. Restart the aseptic filling machine.

(Embodiment 2)
FIG. 6 shows a second embodiment of the present invention. The first embodiment is an aseptic filling machine that sterilizes the bottle 2, but the second embodiment is an aseptic filling machine that sterilizes the preform 1. Below, the aseptic filling machine provided with the preform sterilization part 65 which sterilizes the preform 1 is demonstrated.

(Outline of Embodiment 2)
As shown in FIG. 6, the aseptic filling machine according to the second embodiment includes a preform supply device 4 that supplies the preform 1, a preform sterilization unit 65 that sterilizes the preform 1, and the preform 1 is formed into a bottle 2. A heating unit 6 for heating to a temperature to be heated, a molding unit 16 for molding the heated preform 1 into a bottle 2, an inspection unit 70 for inspecting the molded bottle 2, and contents sterilized in the bottle 2 determined to be normal by the inspection A filling portion 39 for filling the product, a cap sterilizing portion 52 for sterilizing the cap 3 as a sealing member, a sealing portion 44 for sealing the bottle 2 filled with the content portion with the sterilized cap 3, and discharging the sealed bottle 2 A discharge part 47 placed on the conveyor 50 and an outlet part 50a for discharging the bottle 2 to the non-sterile zone by the discharge conveyor 50 are provided. The inspection unit 70 may not be provided.

  The preform sterilization section 65 is a preform sterilization section chamber 66, the heating section 6 is a heating section chamber 12, the molding section 16 is a molding section chamber 17, the inspection section 70 is an inspection section chamber 71, and the filling section 39 is a filling section chamber 41. The part 44 is shielded by the sealing part chamber 46, the discharge part 47 is shielded by the discharge part chamber 49, and the outlet part 50a is shielded by the outlet part chamber 50b. Unlike Embodiment 1, the molding part 16 and the inspection part 70 are not in the same chamber, but are shielded by the molding part chamber 17 and the inspection part chamber 71, respectively. Here, the cap sterilization part 52 and the sealing part 44 may be shielded by a single chamber. Moreover, the sealing part 44 and the discharge part 47 may also be shielded by a single chamber.

  The heating part chamber 12, the molding part chamber 17, the inspection part chamber 71, the filling part chamber 41, the sealing part chamber 46, the discharge part chamber 49 and the outlet part chamber 50b are sterilized by a sterilization filter during operation of the aseptic filling machine. Aseptic air supplied is supplied, and the sterility of the aseptic filling machine is maintained by making the pressure inside each chamber positive. The positive pressure is the highest in the filling chamber 41 and is set lower as it goes upstream or downstream. For example, if the pressure in the filling unit chamber 41 is 20 Pa to 40 Pa, the pressure in the other chambers is lower than the pressure in the filling unit chamber 41.

  The preform sterilizing unit chamber 66 is connected to an exhaust unit comprising a filter 68 and a blower 69 for decomposing a sterilizing agent in the air in the preform sterilizing unit chamber 66. When the air in the preform sterilization unit chamber 66 is exhausted during the operation of the aseptic filling machine, it is possible to prevent the sterilizing agent from flowing into the adjacent heating unit 6. Accordingly, during operation of the aseptic filling machine, the pressure in the preform sterilization unit chamber 66 is substantially equal to the atmospheric pressure.

  If the sterility in each chamber is maintained during operation of the aseptic filling machine, the pressure in each chamber may be low. However, if a trouble occurs in any of the chambers, the troubled chamber must have a non-sterile atmosphere. To maintain the sterility of the non-troubled chamber, The pressure must be kept positive. The pressure in the non-trouble generating chamber is preferably 30 Pa or more, more preferably 50 Pa or more. By setting the pressure higher than the pressure in each chamber during operation of the aseptic filling machine, the inside of the non-trouble generating chamber can be maintained in a non-sterile atmosphere even when the aseptic filling machine is stopped. it can. Therefore, the aseptic atmosphere must be maintained during the operation of the aseptic filling machine, the heating part chamber 12, the molding part chamber 17, the inspection part chamber 71, the filling part chamber 41, the sealing part chamber 46, the discharge part chamber 49 and the outlet part. The chamber 50b includes a sterile air supply device that can maintain the pressure in each chamber at preferably 30 Pa or higher, more preferably 50 Pa or higher.

(Details of Embodiment 2)
The preform 1 is continuously conveyed to the preform sterilization unit 65 by the preform supply conveyor 5 at a desired speed by the preform supply device 4 shown in FIG. The preform 1 is the same as that of the first embodiment.

  The preform 1 is gripped by a gripper 22 provided at a predetermined interval on the wheel 7 from the preform supply conveyor 5, and by a preform sterilant gas spray nozzle 67 provided on the wheel 7 as shown in FIG. A bactericide gas or mist or a mixture thereof is sprayed.

  As shown in FIG. 7 (I), the sterilant gas flows in two ways in the preform sterilant gas spray nozzle 67, and is sprayed from the one nozzle 67a toward the inside of the preform 1, It blows toward the outer surface of the preform 1 from the other nozzle 67b. The germicide gas exits from the preform germicide gas spray nozzle 67 and then flows into the preform 1 as it is or in the form of a mist or a mixture thereof, or the outer surface of the preform 1. To touch.

  The bactericidal gas or mist sprayed toward the inside of the preform 1 or a mixture thereof overflows from the mouth 1a of the preform 1 after flowing into the preform 1, but the bactericidal gas overflowed. Alternatively, the flow of the mist or a mixture thereof collides with the guide member 77, is guided to the inner surface of the guide member 77, changes the flow toward the outer surface of the preform 1, and contacts the outer surface of the preform 1. When the guide member 77 is provided with the annular groove 77 a, the overflowing germicide gas or mist or a mixture thereof flows along the outer surface of the preform 1.

  Thus, the germs or the like attached to the surface of the preform 1 are sterilized by the gas or mist of the sterilizing agent or a mixture thereof contacting and adhering to the inner and outer surfaces of the preform 1.

  The preform sterilant gas spray nozzles 67 shown in FIG. 7 (I) are arranged not only in one but also in plural along the traveling path of the preform 1. Gas or mist or a mixture thereof may be sprayed toward the preform 1. Further, the inner surface and the outer surface of the preform 1 are sterilized by changing the diameter of the preform sterilant gas spray nozzle 67, the nozzle 67a or the nozzle 67b, and the diameter and number of the sterilizer gas outlets provided in the nozzle 67b. It is possible to adjust the adhesion amount of each agent.

  The preform sterilant gas spray nozzle 67, the nozzle 67a, and the nozzle 67b are supplied with normal air or heated sterilized air from the middle thereof, and sterilized gas or mist diluted with sterilized air, or these. The mixture may be sprayed onto the preform 1.

  Note that the preform 1 may be preheated by spraying hot air on the preform 1 immediately before spraying the germicide gas on the preform 1 shown in FIG. This preheating can further enhance the sterilizing effect of the preform 1.

The same disinfectant as that in Embodiment 1 is used. The gasification of the sterilizing agent is performed by the sterilizing agent gas generator 55 similar to that of the first embodiment. The amount of sterilizing gas sprayed is arbitrary, but when the sterilizing agent is hydrogen peroxide, the amount of hydrogen peroxide attached to the preform 1 is 35% by mass of hydrogen peroxide containing hydrogen peroxide. The amount is preferably 0.001 μL / cm ^{2 to} 0.5 μL / cm ² . When the adhesion amount is less than 0.001 μL / cm ² , a sufficient sterilizing effect cannot be obtained. If the amount of adhesion exceeds 0.5 μL / cm ² , when the preform 1 is blow-molded into the bottle 2, whitening, spots, wrinkles, or deformation defects in the bottle 2 occur. More hydrogen peroxide remains.

  As shown in FIG. 7 (J), the preform 1 on which the bactericidal gas is sprayed may be gripped by the gripper 22 and sprayed with aseptic air by the air spray nozzle 78 while being conveyed. Depending on the type and amount of the bactericidal agent, aseptic air may not be sprayed.

  By spraying aseptic air, the disinfectant adhering to the surface of the preform 1 is activated, and the bacteria on the inner and outer surfaces of the preform 1 are sterilized. Further, the sterilizing agent attached to the preform 1 is quickly removed from the surface of the preform 1 by spraying aseptic air. The disinfectant adhering to the preform 1 is removed from the preform 1 by spraying aseptic air before being heated. Further, the foreign matter in the preform 1 is also removed by spraying aseptic air onto the preform 1.

  The sterilized air may be normal temperature, but when heated to sterilized hot air, the sterilizing effect is enhanced, and when the sterilizing agent contains hydrogen peroxide, the residual hydrogen peroxide in the preform 1 is also reduced. The heating of the aseptic air is preferably performed so that the temperature of the aseptic hot air blown onto the preform 1 is 40 ° C to 140 ° C. When the temperature is lower than 40 ° C., the effect of heating is small, and when the temperature of the preform 1 exceeds 70 ° C., disadvantages such as deformation of the mouth portion 1a of the preform 1 occur. .

  As shown in FIG. 7 (J), aseptic air is blown out from a slit-like outlet 78 a formed in a box-like manifold 78 b that is the main body of the air blowing nozzle 78. Alternatively, aseptic air may be blown onto the preform 1 by causing the air blowing nozzle 78 to follow the preform 1. Further, the air blowing nozzle 78 may be formed in a rod shape and inserted into the preform 1 so as to remove foreign matter in the preform 1 and aseptic air blowing into the preform 1 may be performed.

  Spraying of the sterilant gas onto the preform 1 shown in FIG. 7 (I) is performed by a preform sterilant gas spraying nozzle 67 provided on the wheel 7 as shown in FIG. 6, and the preform 1 shown in FIG. Aseptic air is sprayed on the air by an air spray nozzle 78 provided on the wheel 8 as shown in FIG. However, any process may be performed by the wheel 7 or the wheel 8.

  The preform 1 supplied to the heating unit 6 reaches the heating unit conveyance wheel 9 shown in FIG. Thereafter, the heating process of the preform 1 is the same as that of the first embodiment. As shown in FIG. 6, the heated preform 1 is conveyed to the forming unit 16 through the wheel 15. As shown in FIG. 6, a preform tunnel 79 that surrounds the preform 1 conveyance path is provided in the conveyance path of the wheel 15. The preform tunnel 79 covers the mouth portion 1a of the preform 1 from above, and the ceiling portion is formed in a roof shape having an inclined surface. Moreover, the nozzle which blows aseptic air toward the opening | mouth part 1a of the preform 1 is provided in the ceiling part in the row | line | column form or slit shape of a pipe. Thereby, aseptic air is efficiently supplied to the preform 1, and the preform 1 is delivered to the forming wheel 18 of the forming portion 16 while maintaining sterility.

  The molding process of the preform 1 delivered to the molding wheel 18 is the same as in the first embodiment.

  The formed bottle 2 is transported to the inspection unit 70 via the wheel 23. The transport path in the wheel 23 is provided with a bottle tunnel 80 surrounding the transport path of the bottle 2 as shown in FIG. The bottle tunnel 80 covers the mouth portion 1a of the bottle 2 from above, and the ceiling portion is formed in a roof shape having an inclined surface. Moreover, the nozzle which blows aseptic air toward the opening | mouth part 1a of the bottle 2 is provided in the ceiling part in the row | line | column form or slit shape of a pipe. Thereby, aseptic air is efficiently supplied to the bottle 2, and the bottle 2 is in the molding part chamber 17 and can travel while maintaining sterility.

  The bottle 2 is delivered to the inspection wheel 72 of the inspection unit 70 via the wheel 23. Only the bottle 2 that has been confirmed to be defective by inspection is further conveyed to the filling unit 39. It is preferable to inspect the bottle 2 by the inspection unit 70 so that an unsuitable product is not produced using the abnormal bottle 2 due to a molding defect or the like. If an abnormality is found by inspection, the bottle is discharged out of the aseptic filling machine by the defective bottle discharging device 74 shown in FIG. An inspection equipment 24 for inspecting the bottle 2 is provided along the inspection wheels 72 and 73 of the inspection section.

  The inside of the inspection unit chamber 71 is sterilized before operation, and aseptic air is supplied during operation to maintain an aseptic atmosphere. In the sterilization before the operation of the aseptic filling machine, the inspection equipment 24 is stored in a sealed container so that the inspection equipment 24 for inspecting the bottle 2 does not come into contact with the sterilizing agent. This is to prevent the inspection equipment 24 from coming into contact with the bactericide and causing corrosion or the like. That is, the inspection unit 70 includes the inspection equipment 24 stored in a sealed container. The inspection items and the inspection process are the same as those in the first embodiment. However, since the bottle 2 is already sterilized, the temperature measurement may not be performed.

  The bottle 2 determined to be abnormal by the inspection is provided on the discharge wheel 75 and discharged to the outside of the aseptic filling machine by the discharge device 74, but the bottle 2 determined to be normal is conveyed to the filling unit 39 via the wheel 76. The The steps in the filling unit 39, the sealing unit 44, and the discharge unit 47 are the same as those in the first embodiment.

  Before the operation of the aseptic filling machine, the heating part chamber 12 and the molding part chamber 17 are sterilized. For example, as one of the sterilization methods, the inside of the heating unit chamber 12 and the molding unit chamber 17 is gas sterilized with air containing hydrogen peroxide at a concentration of 20 mg / L or less. In this case, the heating part chamber 12 and the molding part chamber 17 are provided with a sterilizing agent spray nozzle 58 as shown in FIG. In addition, the portion with which the preform 1 or the bottle 2 comes into contact may be irradiated (UV sterilization) with a UV lamp. Further, a liquid sterilizing agent is introduced into the preform 1 by a method such as dropping, and air or the like is blown into the preform 1 from the blow nozzle 21 while the sterilizing agent remains in the preform 1. The inside of the molding part chamber 17 may be sterilized by diffusing the bactericide into the molding part chamber 17.

  In order to maintain the sterility in the heating unit chamber 12 and the molding unit chamber 17 during operation of the aseptic filling machine, aseptic air is supplied into the heating unit chamber 12 and the molding unit chamber 17. As in the first embodiment, the heating unit chamber 12 and the molding unit chamber 17 include a sterile air supply device 60. In addition, when trouble occurs in any part of the aseptic filling machine, in order to maintain the sterility of the heating part chamber 12 and the molding part chamber 17 while removing the trouble, the aseptic air supply device 60 is provided with a heating part chamber. 12 and the pressure of the molding part chamber 17 are preferably 30 Pa or more, more preferably 50 Pa or more. Further, an exhaust device 64 may be provided, and the pressure in the heating unit chamber 12 and the molding unit chamber during operation of the aseptic filling machine may be appropriately maintained by balancing the operating conditions of the sterile air supply device 60 and the exhaust device 64.

  As in the first embodiment shown in FIG. 5, the inspection unit chamber 71 includes a sterilizing agent spray nozzle 58, a liquid spray nozzle 59, and a sterile air supply device 60. The aseptic air supply device 60 also has an ability to maintain the pressure in the inspection unit chamber 71 at preferably 30 Pa or more, more preferably 50 Pa or more. Sterilization in the inspection unit chamber 71 before the filling machine is operated is performed in the same manner as each chamber in the first embodiment.

  Cleaning and sterilization in the filling part chamber 41, the sealing part chamber 44, the discharge part chamber 49, and the outlet part chamber 50b are the same as those in the first embodiment.

  During operation of the aseptic filling machine, trouble may occur in the heating part chamber 12, the molding part chamber 17, the inspection part chamber 71, the filling part chamber 41, the sealing part chamber 44, the discharge part chamber 47, and the outlet part chamber 50b. For example, the trouble may be that the preform 1 or the bottle 2 bites into each wheel or the gripper 22 and cannot be conveyed. In addition, there are cases where a number of bottles 2 fall into each chamber due to poor conveyance, and the bottles 2 cannot be conveyed unless they are removed. Further, there is a case where the preform 1 and the bottle 2 used at the time of the previous production are not collected, but the chamber is sterilized and discovered, and then sterilization is required again. In addition, the globes installed in each chamber may be damaged and need to be replaced.

  When such a trouble occurs, the operation of the aseptic filling machine is stopped, but for the non-trouble occurrence chamber, the operation of the aseptic air supply device 60 is continued to make the internal pressure of the non-trouble occurrence chamber positive. State. In that case, it is preferable that the pressure in the non-trouble generating chamber is higher than the pressure during operation of the aseptic filling machine. Thereby, when the door of the trouble occurrence chamber is opened and the inside of the chamber is made a non-sterile atmosphere, the inflow of bacteria and the like from the opening can be further suppressed. In particular, the pressure in the non-trouble generating chamber adjacent to the trouble generating chamber is preferably higher than the pressure during operation of the aseptic filling machine. Therefore, the sterilized air supply device 60 of each chamber has a capability of setting the pressure in each chamber to a positive pressure, preferably 30 Pa or more, more preferably 50 Pa or more. Thereafter, the trouble occurrence chamber door is opened, and the trouble occurrence chamber is made a non-sterile atmosphere to eliminate the trouble.

  The operation from the occurrence of the trouble until the trouble is removed and the operation of the aseptic filling machine is restarted is the same as that of the first embodiment. Close the opened door and perform the same operation as before the aseptic filling machine operation. First, when the trouble occurrence chamber is any one of the filling part chamber 41, the sealing part chamber 46, the discharge part chamber 49, and the outlet part chamber 50b, cleaning is performed as necessary, and sterilization is performed from the disinfectant spray nozzle 58 into the chamber. After spraying the agent, sterile water is sprayed by the liquid spray nozzle 59. Furthermore, heated aseptic air is supplied into the chamber by the aseptic air supply device 60, and the inside of the chamber is dried. When the trouble occurrence chamber is any one of the heating part chamber 65, the molding part chamber 17, and the inspection part chamber 71, it is not necessary to perform cleaning. Sterilize according to each chamber.

  After the operation similar to that before the operation of the aseptic filling machine is completed for the troubled chamber, the pressure in each chamber is set to a value suitable for the operation of the aseptic filling machine, and the operation of the aseptic filling machine is resumed.

  Although the present invention is configured as described above, the present invention is not limited to the above-described embodiment, and various modifications can be made within the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Preform 2 ... Bottle 12 ... Heating part chamber 17 ... Molding part chamber 33 ... Bottle sterilization part chamber 41 ... Filling part chamber 46 ... Sealing part chamber 49 ... Discharge part chamber 60 ... Aseptic air supply device 66 ... Preform sterilization part Chamber 71 ... Inspection unit chamber

Claims (5)

A sterile filling machine for filling sterilized contents in a sterilized bottle in a sterile atmosphere and sealing with a sterilized sealing member, wherein the sterile filling machine shields each part constituting the sterile filling machine. In an aseptic filling machine having
When trouble occurs in any part, the operation of the aseptic filling machine is stopped, and the internal pressure of the non-trouble occurrence chamber which is a chamber that shields the part where the trouble does not occur is made positive by supplying sterile air. In this state, after opening the trouble occurrence chamber door that shields the trouble occurrence portion and removing the trouble, the trouble occurrence chamber door is closed and the trouble occurrence chamber contains 500 ppm or more of peracetic acid. Disinfect the inside of the trouble generating chamber by spraying the disinfectant heated to 50 ° C. to 95 ° C. so that the peracetic acid adheres to 0.01 g / cm ² or more of the apparatus and wall surface in the trouble generating chamber. Thereafter, aseptic water is sprayed into the trouble occurrence chamber, and after aseptic air is supplied, the aseptic filling machine is operated. Trouble recovery method of aseptic filling machine, characterized in that the resume. In the trouble recovery method of the aseptic filling machine according to claim 1,
Preform sterilization unit for sterilizing preform, heating unit for heating preform to molding temperature, molding unit for molding heated preform into bottle, bottle sterilization unit for sterilizing molded bottle, molded bottle It is any one of a filling part for filling the contents, a sealing member sterilizing part for sterilizing the sealing member, a sealing part for sealing the bottle filled with the contents, and a discharging part for discharging the sealed bottle. Trouble recovery method for aseptic filling machine. In the method for recovering a trouble of the aseptic filling machine according to claim 1 or 2,
A method for recovering a trouble from an aseptic filling machine, wherein the inside of the non-trouble producing chamber adjacent to the trouble occurrence chamber is sterilized from the start of sterilization in the trouble occurrence chamber to restarting the operation of the aseptic filling machine. In the trouble recovery method of the aseptic filling machine according to any one of claims 1 to 3,
A method for recovering troubles in an aseptic filling machine, wherein the filling valve CIP and SIP are not performed until the operation of the aseptic filling machine is restarted after opening the door of the trouble occurrence chamber. In the method for recovering troubles of the aseptic filling machine according to claim 4,
When the trouble occurrence chamber is a filling part chamber that shields the filling part, the filling port of the filling valve is closed to perform cleaning and sterilization in the filling part chamber. Method.

Images