WO2016143772A1 - ブロー成形機及びその殺菌方法 - Google Patents
ブロー成形機及びその殺菌方法 Download PDFInfo
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- WO2016143772A1 WO2016143772A1 PCT/JP2016/057092 JP2016057092W WO2016143772A1 WO 2016143772 A1 WO2016143772 A1 WO 2016143772A1 JP 2016057092 W JP2016057092 W JP 2016057092W WO 2016143772 A1 WO2016143772 A1 WO 2016143772A1
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- mold
- blow molding
- molding machine
- preform
- hydrogen peroxide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/208—Hydrogen peroxide
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
- B29C49/12—Stretching rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/42403—Purging or cleaning the blow-moulding apparatus
- B29C49/42405—Sterilizing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/42414—Treatment of preforms, e.g. cleaning or spraying water for improved heat transfer
- B29C49/42416—Purging or cleaning the preforms
- B29C49/42418—Purging or cleaning the preforms for sterilizing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4289—Valve constructions or configurations, e.g. arranged to reduce blowing fluid consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
- B65B55/02—Sterilising, e.g. of complete packages
- B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
- B65B55/10—Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
- B29C2049/4673—Environments
- B29C2049/4679—Sterile gas to surround or flush parts of the blow-moulding apparatus, e.g. blowing means, preforms or parisons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4879—Moulds characterised by mould configurations
- B29C2049/4892—Mould halves consisting of an independent main and bottom part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
- B29C49/122—Drive means therefor
- B29C49/1229—Drive means therefor being a cam mechanism
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/42403—Purging or cleaning the blow-moulding apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/42407—Procedures for start-up or material change
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/258—Tubular
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- the present invention relates to a blow molding machine and a sterilization method thereof.
- a CIP (cleaning in place) system is installed as means for sterilizing the inside of the blow molding machine. According to this CIP system, it is possible to clean a valve block or the like for controlling blow air or the like without disassembling the blow molding machine (see, for example, Patent Document 2).
- the conventional method of injecting a cleaning agent into a mold from a CIP system or a stretching rod has a problem that a large apparatus for circulating the cleaning agent is required.
- the method of spraying the cleaning agent from the drawing rod into the mold or the method of opening the mold and spraying the cleaning agent from the cleaning nozzle to the inner wall surface of the mold must dry the blow molding machine after cleaning. Therefore, it requires a lot of time and energy, and greatly reduces the operating rate of the blow molding machine.
- This invention makes it a subject to eliminate the said trouble.
- the present invention adopts the following configuration.
- the sterilization method for a blow molding machine introduces at least molding by introducing hydrogen peroxide mist or gas or a mixture thereof through a valve block (14) adjacent to the molding die (13).
- the mold (13) and the extending rod (15) penetrating from the valve block (14) into the mold (13) are sterilized.
- the extending rod (15) detached from the mold (13) may be covered with the storage box (26).
- a volatile substance may be added to the hydrogen peroxide mist or gas or a mixture thereof.
- the blow molding machine is provided with traveling means for traveling the preform (1) and the container (2) from the supply of the preform (1) to the molding of the container (2).
- the heating part (3) for heating the mold to the blow molding temperature and the mold (13) for molding the preform (1) into the container (2) by blow air in order from the upstream side to the downstream side in the traveling means.
- a valve block (14) is provided adjacent to the mold (13), and an extending rod (15) capable of moving forward and backward through the valve block (14) is provided in the mold (13).
- the mold (13) is opened, and the draw rod (15) is retracted from the mold (13). Mist or gas or a mixture of these hydrogen peroxide through subblock (14), characterized in that it has to be supplied to the mold (13) and the stretching rod (15).
- the storage box (26) is provided so as to cover the extending rod (15) detached from the mold (13) through the valve block (14). Is also possible.
- a volatile substance may be added to the hydrogen peroxide mist or gas or a mixture thereof.
- the mold (13) is opened, and the extending rod (15) is retracted out of the mold (13) through the valve block (14) adjacent to the mold (13). Then, a mist or gas of hydrogen peroxide or a mixture thereof is led to the inside and outside of the mold (13) and the stretching rod (15) through the valve block (14), thereby forming the mold (13).
- This is a blow molding machine sterilization method for sterilizing the inside and outside and the stretching rod (15). Therefore, unlike the conventional CIP system and the method of spraying the cleaning agent from the stretching rod into the mold, the cleaning agent is circulated. No need for large-scale equipment. With a simpler apparatus, the blow molding machine can be sterilized quickly.
- the cleaning agent after sterilization is dried. Therefore, the time for sterilizing the blow molding machine can be shortened, the energy used can be reduced, and the operation rate of the blow molding machine can be increased.
- molding die (13) shall be covered with a storage box (26), the extending
- the hydrogen peroxide mist or gas or a mixture thereof when a volatile substance is added to the hydrogen peroxide mist or gas or a mixture thereof, the hydrogen peroxide mist or gas or a mixture thereof can be efficiently vaporized. Since the heat treatment for evaporating hydrogen peroxide is not necessary, corrosion of the blow molding machine due to the heat treatment can be prevented.
- FIG. 1 is a schematic plan view of a blow molding machine according to the present invention. It is explanatory drawing which shows each process of the method of disinfecting a blow molding machine. It is a schematic longitudinal cross-sectional view of a shaping
- the blow molding machine runs the preform 1 and the bottle 2 from the supply of the preform 1 (see FIG. 2B) to the molding of the bottle 2 (see FIG. 2C). It has a traveling means.
- the heating unit 3 for heating the preform 1 to the blow molding temperature from the upstream side to the downstream side in the traveling means, and a molding unit 4 for molding the preform 1 into the bottle 2 by blow air. It is provided in order.
- the heating unit 3 and the molding unit 4 are covered with a chamber 19 that is a protective cover.
- the chamber 19 is maintained at a positive pressure by constantly supplying aseptic air from a sterile air supply source (not shown).
- a preform feeder 5 that sequentially feeds the preforms 1 at predetermined intervals is provided on the upstream side of the traveling means.
- the preform 1 is a bottomed tubular body having a test tube shape, and is made by injection molding or the like using PET (polyethylene terephthalate) as a material, for example.
- PET polyethylene terephthalate
- the preform 1 is finished into a bottle 2 which is a container by blow molding.
- the same mouth portion 1a and male screw as in the bottle 2 are formed at the beginning of the molding of the preform 1.
- the preform 1 is sterilized in advance and then sent from the preform feeder 5 to the heating unit 3 of the blow molding machine.
- mist or gas of hydrogen peroxide that is a disinfectant generated by a vaporizer similar to the vaporizer 32 to be described later in the middle of being sent from the preform supply machine 5 to the heating unit 3 of the blow molding machine, or these The mixture is sterilized by being sprayed onto the preform 1.
- the heating unit 3 is arranged at a place where the preform 1 in the blow molding machine is received from the preform feeder 5.
- the endless conveyor 6 extends into the heating unit 3, and a wheel 7 is provided at the end thereof.
- the endless conveyor 6 and the wheel 7 are provided with a gripper (not shown) that conveys the preform 1 while holding it.
- the heating unit 3 has a furnace chamber that extends long in one direction.
- an endless chain 8 is bridged as a preform traveling means between a pair of pulleys 8a and 8b arranged opposite to each other on a horizontal plane.
- the said endless conveyor 6 is connected to the pulley 8a of the entrance side of a furnace chamber.
- a large number of holding members 9 for holding the preform 1 as shown in FIG. 2B are attached to the endless chain 8 at a constant pitch. Each holding member 9 can rotate while traveling with the traveling of the endless chain 8.
- the holding member 9 is formed in a spindle shape, and a plurality of ball-like elastic bodies (not shown) are embedded in the lower outer peripheral surface thereof. When the holding member 9 is inserted into the mouth 1a of the preform 1, the preform 1 is held by the holding member 9 as shown in FIG.
- the preform 1 can be conveyed while being supported in an inverted state.
- a heater 10 that radiates infrared rays is attached to the inner wall surface of the furnace chamber in the heating unit 3 along the forward path and the return path of the endless chain 8.
- the preform 1 When the preform 1 is received by the holding member 9 via the endless conveyor / chute 6 and the wheel 7, the preform 1 travels while rotating along the inner wall surface of the heating unit 3.
- the preform 1 conveyed by the holding member 9 is heated by a heater 10 stretched around the inner wall surface of the heating unit 3 as shown in FIG. While the preform 1 travels in the heating unit 3, it rotates with the rotation of the holding member 9, is uniformly heated by the heater 10, and the temperature of the part other than the mouth part 1a is raised to 90 ° C. to 130 ° C. which is suitable for blow molding To do.
- the mouth portion 1a is suppressed to a temperature of 70 ° C. or less without causing deformation or the like so as not to impair the sealing performance when a cap (not shown) is put on.
- a row of wheels 11 and 12 for receiving the preform 1 heated by the heater 10 and transporting it into the molding section 4 is provided at a position where one pulley 8a of the endless chain 8 is in contact with the return path of the endless chain 8.
- a gripper (not shown) that holds the mouth portion 1a of the preform 1 and conveys it to the next downstream wheel 12.
- a molding die 13 composed of a split mold for receiving the heated preform 1 from the gripper of the upstream wheel 11 and molding it into the bottle 2 by blow air at a predetermined interval. A plurality are arranged. The mold 13 turns around the wheel 12 at a constant speed as the wheel 12 rotates.
- valve block 14 is provided adjacent to each mold 13.
- the valve block 14 is mainly for controlling the supply and exhaust of blow air, and a through hole is vertically provided at the center thereof.
- the valve block 14 is connected with a pipe 28 for supplying blow air through a predetermined valve V1 therein and a pipe 29 for exhausting used blow air through another valve V2.
- the upstream side of the pipe 28 extends to a high-pressure air source (not shown) such as a compressor.
- a high-pressure air source such as a compressor.
- the pipe extending from the high-pressure air source to the pipe 28 is provided with a sterile filter 20 that filters microorganisms and the like.
- the exhaust pipe 29 is provided with a silencer 30 and a sterile filter 38 in order from the upstream side to the downstream side.
- a catalyst for decomposing hydrogen peroxide is provided on the downstream side of the sterile filter 38 as necessary.
- a conduit 31 for supplying hydrogen peroxide mist or gas or a mixture thereof to the mold 13 or the like downstream of the sterile filter 20.
- the conduit 31 is fitted with a vaporizer 32 for producing hydrogen peroxide mist or gas or a mixture thereof.
- a blower source (not shown) for sending aseptic hot air to the vaporizer 32 side is provided upstream of the vaporizer 32 in the conduit 31, and the conduit 31 is opened and closed downstream of the vaporizer 32.
- the valve 33 is provided. The valve 33 is opened when the mold 13 and the like are sterilized before the bottle 2 is molded.
- the vaporizer 32 for example, the structure shown in FIG. 4 is used.
- the vaporizer 32 includes a hydrogen peroxide supply unit 34 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 a hydrogen peroxide supply unit 34 that supplies hydrogen peroxide.
- the hydrogen peroxide supply unit 34 introduces an aqueous solution of hydrogen peroxide and compressed air from the hydrogen peroxide supply channel 34a and the compressed air supply channel 34b, respectively, and sprays the aqueous solution of hydrogen peroxide into the vaporization unit 35. ing.
- the vaporizer 35 is a pipe having a heater 35a sandwiched between inner and outer walls, and heats and vaporizes the spray of hydrogen peroxide blown into the pipe.
- the vaporized hydrogen peroxide is ejected from the nozzle 36 to the outside of the vaporizer 32 as mist, gas, or a mixture thereof.
- the nozzle 36 is connected so as to intersect the conduit 31. For this reason, the mist or the like coming out of the nozzle 36 is mixed with the sterilized hot air H flowing in the conduit 31 to become an air-fuel mixture M, and the air-fuel mixture M flows to the valve block 14 through the conduit 31 and the pipe 28.
- the air-fuel mixture M can also be made by increasing the flow rate of the compressed air from the compressed air supply path 34b in the vaporizer 32. In that case, the supply of hot air H can be omitted in FIG.
- the extending rod 15 is provided so as to be able to advance and retract with respect to the inside of the mold 13 through the through hole of the valve block 14.
- the drawing rod 15 is arranged such that its axis coincides with the mold 13 and the extension line of the axis of the preform 1 held in the mold 13.
- stretching rod 15 is provided. That is, the nut 22 is connected to the rear end of the extending rod 15, and the feed screw rod 23 extending in parallel to the extending rod 15 is screwed to the nut 22. A guide member 24 parallel to the feed screw rod 23 is provided to cause the extending rod 15 to accurately advance and retract.
- One or a plurality of guide members 24 are provided in a rail shape or a rod shape, and are slidably engaged with the base portion 15a or the nut 22 at the rear end of the extending rod 15.
- one end of the feed screw rod 23 is connected to the output shaft of the servo motor 25 so that it can be rotated forward and backward.
- the extending rod 15 and the feed screw rod 23, which is a driving part thereof, are covered with a storage box 26 and sealed.
- the storage box 26 may be configured such that a room in which the stretching rod 15 is stored and a room in which the feed screw rod 23 is stored are partitioned by a partition wall (not shown).
- symbol 27 shows the ventilation
- the ventilation portion 27 is a simple ventilation hole, and the air-fuel mixture M filled in the accommodation box 26 is guided from the ventilation portion 27 into the chamber 19 outside the accommodation box 26 while containing the sterilizing agent. Thereby, the inside of the chamber 19 is also sterilized with the disinfectant.
- the ventilation part 27 is provided with a filter that captures the disinfectant contained in the air-fuel mixture, decomposes it, and allows only air to flow out of the storage box 26 as necessary.
- the mold 13 turns together with the wheel 12 and opens at a position in contact with the carry-out wheel 16.
- the molded bottle 2 is received from the molding die 13 opened by a gripper (not shown) of the unloading wheel 16.
- a row of other wheels 17 and 18 is connected to the carry-out wheel 16.
- the formed bottles are sequentially sent from the wheel 16 to the wheels 17 and 18 and are carried out of the blow molding machine.
- a volatile substance to the hydrogen peroxide mist or gas described above or a mixture thereof.
- ethanol, propanol, isopropanol, and the like are preferably used as the volatile substance.
- the hydrogen peroxide mist or gas or a mixture thereof can be efficiently vaporized in the mold 13, and the peroxide is oxidized. Since heat treatment for evaporating hydrogen is not necessary, corrosion of the molding 13 and the like due to the heat treatment can be prevented. Further, since the concentration of hydrogen peroxide can be reduced by adding a volatile substance, it is possible to prevent hydrogen peroxide from remaining in the blow molding machine after sterilization treatment.
- the main component is a volatile substance such as ethanol
- hydrogen peroxide it is preferable to add hydrogen peroxide to 0.1 to 35% by weight.
- the conditions for further reducing the corrosivity and satisfying the bactericidal performance (6 Log with respect to B. atrophaesu spores) are more preferably 1 to 5% by weight of hydrogen peroxide.
- the preform 1 is conveyed into the heating unit 3 of the blow molding machine by the endless conveyor chute 6 of the preform feeder 5.
- the preform 1 can be sterilized in advance.
- the preform 1 can be sterilized by spraying the preform 1 with hydrogen oxide mist or a mixture thereof. At this time, if a volatile substance is added to hydrogen peroxide, hydrogen peroxide can be efficiently vaporized, and hydrogen peroxide can be prevented from remaining in the preform after sterilization treatment.
- blow air is blown into the preform 1 from a pipe 28 for supplying blow air through a predetermined valve V 1 in the valve block 14, and the preform 1 is a container 2 in the cavity C of the mold 13. (See FIG. 2C).
- the released bottle 2 is received by a gripper (not shown) of the carry-out wheel 16 and carried out of the blow molding machine.
- the mold 13 is in the mold open state, and the stretching rod 15 is in a position retracted from the mold 13 into the storage box 26 by the reverse rotation of the servo motor 25.
- the valve 33 of the conduit 31 is opened, and the mixture M containing the hydrogen peroxide component flows into the mold 13 through the conduit 31 and the pipe 28. Further, since the mold 13 is in the mold open state, the air-fuel mixture M further flows out of the mold 13. Thereby, the inside and outside of the mold 13 are sterilized (see FIG. 2A).
- the extending rod 15 is retracted and the valve part in the middle of the extending rod 15 is separated from the opening of the valve block 14, the opening of the valve block 14 is opened, and the mixture containing the hydrogen peroxide component is opened.
- M flows into the storage box 26, and the entire extending rod 15 in the storage box 26, the feed screw rod 23 of the drive unit, the inner surface of the storage box 26, and the like are sterilized.
- the air-fuel mixture M that has flowed into the storage box 26 flows out of the storage box 26 from the ventilation portion 27 and flows into the chamber 19.
- the molded part 4 in 19 is sterilized.
- aseptic air is supplied into the chamber 19 from an aseptic air supply device (not shown). Sterilization is maintained.
- a heater may be provided in the sterile air supply device, and heated sterile air may be blown into the chamber 19.
- the bottle 2 is produced by repeating the operations (1) to (7).
- a tunnel-shaped passage 37 for passing the air-fuel mixture M is provided in the intermediate portion of the stretching rod 15, and a part of the stretching rod 15 is in the valve block 14.
- the servo motor 25 may be controlled so as to remain at As a result, the air-fuel mixture M flows from the valve V1 into the storage box 26 through the tunnel-shaped passage 37.
- the chamber 19 and the mold 13 can be sterilized without using the air-fuel mixture M shown in FIG. That is, for example, a vaporizer 32 as shown in FIG. 4 can be separately attached to the chamber 19 and a gas or mist containing hydrogen peroxide can be sprayed into the chamber 19 to sterilize the blow molding machine in the chamber 19. .
Abstract
Description
2…容器(ボトル)
13…成形型
14…バルブブロック
15…延伸ロッド
26…収容箱
Claims (6)
- 過酸化水素のミスト若しくはガス又はこれらの混合物を、成形型に隣設されたバルブブロックを通して導入することにより、少なくとも成形型、及びバルブブロックから成形型内へと貫通する延伸ロッドを殺菌することを特徴とするブロー成形機の殺菌方法。
- 請求項1に記載のブロー成形機の殺菌方法において、成形型外に離脱した延伸ロッドを収容箱で覆っておくことを特徴とするブロー成形機の殺菌方法。
- 請求項1又は2に記載のブロー成型機の殺菌方法において、前記過酸化水素のミスト若しくはガス又はこれらの混合物には、揮発性物質が添加されることを特徴とするブロー成型機の殺菌方法。
- プリフォームの供給から容器の成形に至るまでプリフォーム及び容器を走行させる走行手段が設けられ、プリフォームをブロー成形温度まで加熱する加熱部と、プリフォームをブローエアによって容器に成形する成形型とが、上記走行手段における上流側から下流側に向かって順に設けられ、上記成形型に対してバルブブロックが隣設され、上記成形型の内部に対して上記バルブブロックを通して進退可能な延伸ロッドが設けられたブロー成形機において、
ブロー成形機を殺菌する際に、上記成形型が型開きされ、上記延伸ロッドが成形型内から後退せしめられると、上記バルブブロックを通して過酸化水素のミスト若しくはガス又はこれらの混合物が上記成形型及び上記延伸ロッドへと供給されるようにしたことを特徴とするブロー成形機。 - 請求項4に記載のブロー成形機において、バルブブロックを通って成形型外に離脱した延伸ロッドを覆うように収容箱が設けられたことを特徴とするブロー成形機。
- 請求項4又は5に記載のブロー成型機において、前記過酸化水素のミスト若しくはガス又はこれらの混合物には、揮発性物質が添加されていることを特徴とするブロー成型機。
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JP2017505344A JP6760260B2 (ja) | 2015-03-09 | 2016-03-08 | ブロー成形機及びその殺菌方法 |
US15/543,044 US10543636B2 (en) | 2015-03-09 | 2016-03-08 | Blow-molding machine and method of sterilizing the same |
EP16761740.6A EP3269529B1 (en) | 2015-03-09 | 2016-03-08 | Blow molding machine and method of sterilizing the same |
EP21155739.2A EP3838551B1 (en) | 2015-03-09 | 2016-03-08 | Blow-molding machine and method of sterilizing the same |
CN202010418527.1A CN111546606B (zh) | 2015-03-09 | 2016-03-08 | 吹塑成型机及其杀菌方法 |
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JPWO2016143772A1 (ja) | 2017-12-28 |
US20180001541A1 (en) | 2018-01-04 |
EP3269529A4 (en) | 2018-10-03 |
CN111546606B (zh) | 2022-05-27 |
CN111546606A (zh) | 2020-08-18 |
JP6760260B2 (ja) | 2020-09-23 |
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US10543636B2 (en) | 2020-01-28 |
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