WO2015083555A1 - 容器の密封装置及び密封システム - Google Patents
容器の密封装置及び密封システム Download PDFInfo
- Publication number
- WO2015083555A1 WO2015083555A1 PCT/JP2014/080788 JP2014080788W WO2015083555A1 WO 2015083555 A1 WO2015083555 A1 WO 2015083555A1 JP 2014080788 W JP2014080788 W JP 2014080788W WO 2015083555 A1 WO2015083555 A1 WO 2015083555A1
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- WO
- WIPO (PCT)
- Prior art keywords
- container
- sealing
- flange portion
- lid
- cleaning
- Prior art date
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Classifications
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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
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
- B65B51/22—Applying or generating heat or pressure or combinations thereof by friction or ultrasonic or high-frequency electrical means, i.e. by friction or ultrasonic or induction welding
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1674—Laser beams characterised by the way of heating the interface making use of laser diodes
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
- B29C65/7879—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path
- B29C65/7882—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path said parts to be joined moving in a circular path
- B29C65/7885—Rotary turret joining machines, i.e. having several joining tools moving around an axis
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0222—Mechanical pre-treatments, e.g. reshaping without removal of material, e.g. cleaning by air blowing or using brushes
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
- B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
- B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/65—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8167—Quick change joining tools or surfaces
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/822—Transmission mechanisms
- B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
- B29C66/82263—Follower pin or roller cooperating with a groove
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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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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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
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/50—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using rotary tables or turrets
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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
- B65B55/24—Cleaning of, or removing dust from, containers, wrappers, or packaging ; Preventing of fouling
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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
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
- B65B7/2842—Securing closures on containers
- B65B7/2878—Securing closures on containers by heat-sealing
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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
Definitions
- the present invention relates to a container sealing device, more specifically, a container sealing device for heat-welding a lid to a container by laser irradiation, and a container flange for cleaning the flange portion of the container prior to sealing the container together with the container sealing device.
- the present invention relates to a container sealing system including a partial cleaning device.
- a container for contents such as various foods or pet foods
- it is made of resin as appropriate, and has a bottom wall, a side wall extending upward from the bottom wall, and a flange portion extending radially outward from the upper end of the side wall.
- Cup-shaped or tray-shaped containers are widely used in practice.
- the container is filled with the contents, and then the flange of the molded lid made of plastic synthetic resin is placed on the flange portion of the container, and then the flange of the lid is placed on the flange portion of the container. Adhere to and seal.
- Patent Document 1 discloses a sealed container manufacturing apparatus in which a plurality of means are arranged at equal intervals on the periphery of the rotating disk body, and a laser beam is irradiated to a place where the container body and the lid are to be welded.
- Patent Document 2 as a method of sealing a container and a lid by laser welding, one of the container and the lid is a thermoplastic resin that can transmit a laser, and the other is a heat generation that generates heat by absorbing the laser into the thermoplastic resin.
- a laser composition comprising a resin composition containing a substance, wherein the laser is capable of irradiating a rectangular beam having a uniform intensity distribution, and the upper limit range of the temperature rising by laser irradiation at the welding interface between the lid and the container
- a sealing method by laser welding of a container and a lid that define conditions for reaching the upper limit temperature is disclosed.
- the pressing portion of the pressing plate of the above-described lid fixing means disposed on the optical path of the laser light has a light-transmitting property with respect to the laser light. It is made of a material such as acrylic resin. For this reason, the durability against the load holding the lid attached to the container body is inferior, and when dust or dirt adheres, the laser light transmission is reduced, and further, the laser light is irradiated obliquely Causes refraction of the laser beam, and in any case, there is a possibility that heat welding by laser irradiation cannot be performed efficiently.
- Patent Document 2 proposes a laser welding method that reliably seals a container and a lid by laser welding in a short time.
- the apparatus is disclosed.
- No device configuration has been proposed for improving the production capacity without increasing the complexity and size.
- the contents when the contents are filled in the container, the contents may adhere to the upper surface of the flange portion of the container.
- the molding lid when the molding lid is placed with the contents attached to the upper surface of the flange portion of the container, and the lid is welded to the flange portion of the container by laser irradiation to seal the container, the outer peripheral edge portion of the molding lid and There is a possibility that sealing failure may occur due to the contents interposed between the flange portion of the container.
- the present invention has been made in view of the above circumstances, and a main technical problem thereof is that the container and the lid are reliably pressed in the container sealing device in which the lid is heated and welded to the container by laser irradiation. It is an object of the present invention to provide a new and improved container sealing apparatus which can efficiently perform heat welding by irradiation and improve the production capacity without making the apparatus complicated and large.
- Another technical problem of the present invention is to remove the contents attached to the flange portion of the container prior to sealing the container by the container sealing device together with the container sealing device described above, and Including a container flange cleaning device that can reliably clean the upper surface of the container flange, while ensuring that foreign materials such as the contents and cleaning liquid are not mixed into the container. And providing an improved container sealing system.
- a rotating spindle A rotating turret means disposed around the rotating spindle and having a plurality of pockets along a circular conveyance path; Corresponding to each of the plurality of pockets, a plurality of container support means disposed below the rotating turret means and capable of revolving and rotating; Corresponding to the container support means, a plurality of lid pressing means disposed above the rotating turret means, capable of revolving and rotating, and capable of moving up and down relative to the container support means; A plurality of laser irradiation means capable of revolving to irradiate a laser to the container whose lid is pressed by the container support means and the lid pressing means and heat-weld the lid to the container; A container sealing device is provided.
- the main shaft is provided with upper table means positioned above the rotating turret means and lower table means positioned below the rotating turret means, and the lid pressing means.
- the laser irradiation means is disposed on the lower table means.
- the container support means is disposed so as to be movable up and down, and an elevating means for moving up and down each of the container support means is attached.
- the laser is irradiated from below, each of the laser irradiation means is a direct diode laser, the container has a flange portion, and the lid is a molded lid placed on the flange portion of the container. It is preferable.
- the flange portion of the container that is cleaned by the container sealing device of the present invention is cleaned prior to sealing.
- the apparatus for cleaning the flange portion of the container includes a support means for supporting the container, a sealing means that is in close contact with and away from the inner peripheral end of the flange portion, and reciprocates relative to the container, and above the sealing means. And a cleaning / liquid removal means for injecting a cleaning liquid onto the upper surface of the flange portion with the sealing means in close contact with the inner peripheral end, and for injecting a gas onto the upper surface of the flange portion after the injection of the cleaning liquid.
- a container sealing device is provided.
- the cleaning / liquid removal means has an injection port and a flow path to the injection port, and supplies a cleaning liquid supply source that supplies the cleaning liquid to the injection port via the flow path, and gas.
- the injection port is a large number of small holes spaced appropriately in the circumferential direction
- the outer peripheral surface of the sealing means is an inverted truncated cone shape
- the inner periphery of at least the flange portion of the container It is preferable that the portion in close contact with the end is a rubber-like elastic body.
- the apparatus for cleaning the flange portion of the container includes a container carry-in region, a sealing region in which the sealing means is in close contact with the flange portion of the container, a cleaning region of the flange portion, a liquid removal region of the flange portion, and the sealing means as the flange. It is preferable to arrange and revolve along a circular conveyance path that sequentially includes a separation region and a container unloading region separated from each other.
- the container and the lid are surely pressed by the rotating turret having a plurality of pockets, the plurality of container supporting means and the plurality of lid pressing means, and are reduced in size and weight.
- laser irradiation means such as a direct-odd laser
- the container sealing system of the present invention prior to sealing by the container sealing device described above, the contents attached to the upper surface of the flange portion of the container when the contents are filled in the container are covered with the lid material.
- the flange Before the sealing, the flange is removed from the upper surface so that the cleaning is performed reliably. In addition, foreign matter such as contents or cleaning liquid is prevented from being mixed into the container during the removal and cleaning. It is possible to reliably prevent a sealing failure due to. Furthermore, according to the container sealing system of the present invention, it is possible to reliably remove the contents attached to the upper surface of the flange portion of the container and clean it with high efficiency.
- FIG. 1 is a simplified diagram showing a preferred embodiment of a container flange cleaning apparatus in a container sealing system according to the present invention, with a part of the sealing means being separated from the inner peripheral end of the flange of the container in a sectional view.
- FIG. 1 is a simplified diagram showing a preferred embodiment of a flange cleaning apparatus in a container sealing system according to the present invention, and showing a part in a sectional view in a state where a sealing means is in close contact with an inner peripheral end of a flange of a container.
- the simplified diagram which shows the state which arranged the flange part washing
- FIG. 1 shows a typical example of a container that is sealed by heat welding using a container sealing device of the present invention, together with a lid.
- a container 2 molded from an appropriate thermoplastic synthetic resin has a circular bottom wall portion 4, an inverted frustoconical main side wall portion 6 extending upward from the outer peripheral edge of the bottom wall portion 4, and a radius from the upper end edge of the main side wall portion 6.
- An annular projecting wall portion (stack portion) 8 extending outward in the direction, a cylindrical additional side wall portion 10 extending upward from the outer peripheral edge of the overhanging wall portion 8, and a radially outward direction from the upper end edge of the additional side wall portion 10
- Has a flange portion 12 extending substantially horizontally.
- the lid 14 molded from an appropriate thermoplastic resin is formed so that the circular main portion 16, the rising wall portion 18 extending upward from the outer peripheral edge of the main portion 16, and the upper end edge of the rising wall portion 18 horizontally outward in the radial direction. It has a flange 20 that extends. Then, after filling the container 2 with the contents, as shown in FIG. 1, the main portion 16 and the rising portion 18 of the lid 14 are fitted into the container 2, and the flange 20 of the lid 14 is connected to the flange portion 12 of the container 2. The container 2 is sealed by heating and welding the flange 20 of the lid 14 and the flange portion 12 of the container 2.
- FIG. 2 shows a preferred embodiment of the container sealing device according to the present invention.
- the sealing device generally indicated by reference numeral 22 includes a rotating main shaft 24 extending substantially vertically.
- the substantially cylindrical connecting member 26 is fixed as a whole.
- the lower end portion of the connecting member 26 is rotatably mounted via a bearing means 29 on a stationary substrate 28 supported by an appropriate support structure (not shown).
- the upper end portion of the rotary spindle 24 is also rotatably mounted on the stationary structure via bearing means.
- the lower end of the rotating main shaft 24 extends downward through the stationary substrate 28 and is drivingly connected to rotating means 30 including an electric motor and a transmission mechanism.
- the rotating main shaft 24 is rotated clockwise by the rotating means 30. Drive (see FIG. 3).
- a disk-shaped upper table means 32 is fixed to the upper end of the connecting member 26 fixed to the outer peripheral surface of the rotating main shaft 24, and a disk-shaped lower table means 34 is fixed to the lower part of the connecting member 26. ing.
- the upper table means 32 is provided with a mounting portion 36 located below, and a disk-shaped rotating turret means 38 is fixed to the mounting portion 36.
- a plurality of substantially semicircular cutouts that is, six pockets 40 at equal intervals in the circumferential direction are arranged on the outer periphery of the rotating turret means 38, in the illustrated case, six. ing.
- a container supporting means 42 is provided on the connecting member 26
- a lid pressing means 44 is provided on the upper table means 32
- the lower table means 34 is provided on the lower table means 34.
- Laser irradiation means 46 are respectively provided.
- the container support means 42 and the lid pressing means 44 are aligned with each other and are respectively disposed below or above the pocket 40 in alignment with each pocket 40.
- a guide rail member 48 extending in the vertical direction is fixed to the outer peripheral surface of the connecting member 26 corresponding to each of the pockets 40, and the elevating member 50 moves in the vertical direction to the guide rail member 48. It is freely mounted, that is, can be moved up and down.
- the lifting member 50 is mounted with the container support means 42 described above.
- Each container support means 42 includes a cup-shaped member 52 and a shaft member 54 that hangs downward from the center of the lower surface of the cup-shaped member 52.
- Have A plurality of circular openings 56 are formed in the cylindrical side wall of the cup-shaped member 52 at intervals in the circumferential direction in order to reduce the weight of the cup-shaped member 52 and reduce the load on the rotational drive source 68 of the container support means 42. Has been.
- a restraining member 57 is attached to the outside of the shaft member 54 so as to be movable up and down relatively with respect to the shaft member 54. Further, a first support flange 58 projecting outward in the radial direction is formed at the upper end portion of the elevating member 50, and the restraining member is connected to the first projecting flange 58 via a bearing means 59. 57 is rotatably mounted. Further, a tapered shoulder surface 60 is formed on the inner peripheral surface of the restraining member 57, and a locking flange 61 projecting radially outward is formed on the lower end of the shaft member 54. When 61 abuts on the shoulder surface 60, the rise of the shaft member 54 with respect to the restraining member 57 is limited.
- a second support flange 62 projecting outward in the radial direction is formed in the middle portion of the elevating member 50 in the vertical direction, and a connection member 66 is rotatably attached to the second support flange 62 via a bearing means 64.
- the upper end of the connection member 66 is connected to the lower end of the restraining member 57.
- a rotary drive source 68 such as a servo motor is attached to the lower end portion of the elevating member 50, and an output shaft protruding above the rotary drive source 68 passes through the transmission means 70 such as a friction clutch. It is drivingly connected to the lower end of the connecting member 66.
- connection member 66 is formed in a cylindrical shape, and a compression coil spring 72 is accommodated in the upper half.
- the upper end of the compression coil spring 72 is brought into contact with the lower end surface of the shaft member 54, and the shaft member 54 is elastically supported upward by the compression coil spring 72 with respect to the connection member 66.
- the lower end portion of the elevating member 50 and the lower end portion of the rotational drive source 68 extend through the opening 74 formed in the lower table means 34 and below the lower table means 34. Further, a cam roller 76 constituting a cam follower is rotatably mounted on the lower end portion of the elevating member 50. On the other hand, a cam block 78 is fixed via a stationary connecting member 77 positioned outside the bearing means 29 of the stationary substrate 28 described above, and a cam groove extending continuously in the circumferential direction is formed in the cam block 78. ing.
- the cam roller 76 attached to the elevating member 50 is engaged with a cam groove formed in the cam block 78, and the elevating member 50 and the container support means 42 attached to the elevating member 50 are attached as the rotary main shaft 24 rotates. Move up and down.
- the cam groove formed in the cam block 78 and the cam roller 76 mounted on the lifting member 50 constitute lifting and lowering means for moving the container support means 42 up and down.
- the lid pressing means 44 in the present embodiment includes a shaft member 80 and a disk-shaped pressing member 82 fixed to the lower end of the shaft member 80, and the surface of the pressing member 82 extends substantially horizontally. It is an existing flat surface.
- the shaft member 80 is rotatably mounted on the upper table means 42 through bearing means 84.
- a support base 86 for supporting the laser irradiation means 46 is fixed on the lower table means 34 so as to correspond to each pocket 40 of the rotary turret means 42.
- the laser irradiation means 46 is preferably mounted on each inclined support surface of the support base 86 so as to be capable of adjusting the position along the support surface and adjusting the angle with respect to the support surface.
- the laser irradiation means 46 is preferably a relatively compact direct diode laser.
- the rotation main shaft 24 continuously rotates in the clockwise direction, and similarly, the rotation turret means 38, the upper table means 32, and the lower table means 34 also rotate in the clockwise direction.
- each of the pockets 40, the container support means 42, the lid pressing means 44 and the laser irradiation means 46 arranged in the rotating turret means 38 revolves, and the carry-in area 90, the container rising area 92, the laser irradiation area 94, the container It is transported along a circular transport path that sequentially includes the descending region 96 and the unloading region 98.
- the container 2 fitted with the lid 14 is carried into the pocket 40 by appropriate carrying means (not shown), and as shown in FIG. Part 12 is suspended by rotating turret means 38.
- the container support means 42 is rotated by the above-described rotational drive source 68, transmission means 70 and connection member 66, and the cam roller 76 at the lower end of the elevating member 50 and the stationary connection of the stationary substrate 28. It is raised by the cam groove of the cam block 78 fixed via the member 77. As a result, as shown in FIG.
- the main portion of the container 2 is accommodated in the cup-shaped member 52 of the container support means 42, and the upper end edge of the cup-shaped member 52 is the overhanging wall portion (stack portion) of the container 2.
- ) 8 (refer to FIG. 1), abuts on the lower surface of the container 2 and the lid 14 while rotating, and is separated upward from the rotating turret means 38. Thereafter, the cup member 57 is pushed up by the cup-shaped member 52 of the container support means 42, and the lid 14 is pressed by the pressing member 82 of the lid pressing means 44 in a state where the elastic force of the compression coil spring 72 is applied. The flange portion 12 and the flange 20 of the lid body 14 are brought into close contact with each other.
- the flange portion 12 of the container 2 and the flange 20 of the lid body 14 are pressed and brought into close contact by the pressing means 44, and the flange portion 12 of the container 2 that rotates is rotated.
- Laser light is irradiated from the laser irradiation means 46, and laser light is irradiated over the entire circumference of the flange portion 12 of the container 2.
- the flange portion 20 of the lid 14 is heat-welded to the flange portion 12 of the container 2 over the entire circumference in the circumferential direction, and the container 2 is sealed. Further, when laser irradiation is performed, laser welding is performed from below, so that heat welding can be performed more efficiently without being affected by the above-described means.
- the container supporting means 42 descends while rotating to the position shown in FIG. 4-A, and the container 2 with the lid 14 heated and welded is suspended on the rotating turret means 38.
- the container support means 42 is spaced downward from the container 2. If desired, the rotation of the container support means 42 can start in the container rising area 92 and end in the container lowering area 96.
- the carry-out area 98 the container 2 with the lid 14 heated and welded is carried out from the rotating turret means 38 by an appropriate carry-out means (not shown). Further, as schematically shown in FIG.
- an outer stationary guide extending in an arc shape is used to prevent the container 2 from falling out of the pocket 40 of the rotating turret means 38.
- 100 is arranged.
- the container support means 42 is raised and the flange 20 of the lid 14 is pressed by the lid pressing means 44. Instead, the container support means 42 is pressed, or the lid pressing means 44 is It is also possible to adopt a configuration in which the pressure is applied by both means with the container support means 42.
- FIG. 5 shows a container sealing system according to the present invention, together with a preferred embodiment of the container flange cleaning device 102 for cleaning the flange portion of the container sealed by the container sealing device described above prior to sealing.
- the container 2 which is a typical example (refer FIG. 1) of the container from which a flange part is wash
- the illustrated flange portion cleaning apparatus 102 for cleaning the upper surface of the flange portion 12 of the container 2 includes a support means 116, a cleaning / liquid removal means 118, and a sealing means 120.
- the support means 116 for supporting the container 2 has a horizontally extending upper surface, and a circular recess 122 is formed at the center of the upper surface.
- the inner diameter of the circular concave portion 122 corresponds to the outer diameter of the lower end portion of the container 2, and as shown in FIG. 5, the lower end portion of the container 2 is mounted in the circular concave portion 122, and the container 2 is supported in an upright state. 116.
- the cleaning / liquid removal means 118 includes a disc-shaped substrate 124 as a whole, a substantially disc-shaped inner member 126, and an annular plate-shaped outer member 128 integrally provided via a lower end portion of the inner member 126. Have.
- the substrate 124 is mounted so as to be movable up and down by appropriate mounting means (not shown).
- the sealing means 120 shown in FIG. 5 is used as a container by appropriate lifting means (not shown) such as a hydraulic cylinder mechanism. Between the state of being separated from the inner peripheral end of the flange portion 12 (separated position) and the state in which the sealing means 120 shown in FIG. 6 is in close contact with the inner peripheral end of the flange portion 12 of the container 2 (close position).
- the outer member 128 is fixed to the lower surface of the substrate 124 with the fastening bolts 130, and the above-described sealing means 120 is brought into a close state and a close state.
- a large number of radially extending flow paths 132 are formed between the substrate 124 and the inner member 126, and an annular flow path is formed between the outer peripheral surface of the inner member 126 and the inner peripheral surface of the outer member 128.
- 134 is formed, and at the lower ends of the inner member 126 and the outer member 128, there are formed injection holes 136 made up of a large number of small holes spaced appropriately in the circumferential direction.
- a flow path 138 extending downward from the upper surface of the substrate 124 and communicating with the flow path 132 is formed at the center of the substrate 124, and the cleaning liquid supply source 140 and the gas supply source 142 are provided in the flow path 138. It is connected.
- cleaning liquid supply source 140 cleaning liquid such as clean water is supplied to the injection holes 136 through the flow paths 138 and 132 and the annular flow path 134 and is injected from the injection holes 136.
- the gas supply source 142 is activated, a gas such as compressed air is supplied to the injection holes 136 via the flow paths 138, 132, and 134 and is injected from the injection holes 136.
- the former consists of a plurality of small holes spaced at appropriate intervals in the circumferential direction of the former. It is preferable to form an injection hole.
- the spray angle of the above-described spray hole and spray portion with respect to the upper surface of the flange portion 12 of the container 2 is 30 to 60 degrees, particularly 40 to 50 degrees, which can further effectively perform the cleaning and the gradual liquid after cleaning. This is preferable in terms of performance.
- the sealing means 120 is fixed to the lower surface of the inner member 126 of the cleaning / liquid removal means 118 by an appropriate fastening means (not shown) such as a fastening bolt. It moves up and down, that is, reciprocates between the separation position shown in the figure and the close position shown in FIG.
- the sealing means 120 has a cylindrical shape on the upper half of the outer peripheral surface thereof and an inverted truncated cone shape on the lower half portion, and the inverted truncated cone shaped portion on the lower half portion is in close contact with the inner end of the flange portion 12 of the container 2. It is suitable to make it.
- a rubber-like elastic body having a rubber hardness (JIS K 6253) of preferably about 10 to 70 is preferably used for the outer peripheral surface of the portion close to the inner end of the flange portion 114 of the container 2 in the sealing means 120.
- the sealing means 120 includes a main body 144 made of an appropriate metal or synthetic resin, and an annular rubber-like elastic body 146 attached to the lower half of the outer peripheral surface of the main body 144 by appropriate means. It consists of and.
- the container flange cleaning apparatus of the present invention configured as described above is loaded and placed on the circular recess 122 of the support means 116 in a state where the container 2 filled with the contents is upright. Is done.
- the substrate 124 is lowered from the separation position shown in FIG. 5 to the close position shown in FIG. 6, and the rubber-like elastic body 146 of the sealing means 120 is brought into close contact with the inner end of the flange portion 12 of the container 2 with the required pressing force. Let As a result, the container 2 filled with the contents is sealed by the sealing means 120.
- the cleaning liquid from the cleaning liquid supply source 140 is supplied to the injection hole 136 via the flow paths 138 and 132 and the annular flow path 134 described above, and the cleaning liquid is injected onto the upper surface of the flange portion 12 of the container 2. Then, the contents attached to the upper surface of the flange portion 12 are removed. Thereafter, the supply of the cleaning liquid from the cleaning liquid supply source 140 is stopped, and the gas from the gas supply source 142 is similarly supplied to the injection holes 136 via the flow paths 138 and 132 and the annular flow path 134 described above. The gas is sprayed onto the upper surface of the flange portion 12 of the container 2 to remove the cleaning liquid remaining on the upper surface of the flange portion 12.
- the upper surface of the flange portion 12 is cleaned and gradually liquid-washed in a state where the sealing means 120 is brought into close contact with the inner end of the flange portion 12 of the container 2 to seal the container 2. For this reason, the penetration
- the substrate 124 is raised to the position illustrated in FIG. 5, and the sealing means 120 is separated from the inner end of the flange portion 12 of the container 2. Thereafter, the container 2 whose upper surface of the flange portion 12 has been cleaned and removed from the support means 116 is carried out.
- the substrate 124 that is, the sealing means 120 is moved up and down with respect to the container 2, and the sealing means 120 is closely and separated from the inner end of the flange portion 12 of the container 2.
- the sealing means 120 can be moved up and down to close and separate the sealing means 120 from the inner end of the flange portion 12 of the container 2, and the sealing means 120 is reciprocated relative to the container. Just do it.
- FIG. 7 shows that the flange cleaning device 102 is disposed along a circular conveyance path 162 including a container carry-in area 150, a sealing area 152, a washing area 154, a liquid removal area 156, a separation area 158, and a container carry-out area 160.
- a container carry-in area 150 a plurality of the flange cleaning devices 102 (20 in the illustrated example) are arranged at equal intervals, and continuously revolve in the direction indicated by the arrow 164 along the circular conveyance path 162. Is done.
- the container carry-in region 150 the container 2 filled with the contents is carried in and placed on the support means 116 of the cleaning apparatus 102 by appropriate carry-in means (not shown).
- the sealing means 120 descends and comes into close contact with the inner peripheral end of the flange portion 12 of the container 2, and the container 2 filled with the contents is sealed.
- the cleaning liquid supply source 140 is operated, and the cleaning liquid is sprayed onto the upper surface of the flange portion 12 of the container 2 to clean the flange portion.
- the gas supply source 142 is operated, gas is jetted onto the upper surface of the flange portion 12 of the container 2, and the cleaning liquid is gradually discharged.
- the sealing means 120 rises in the separation region 158 and separates from the inner peripheral end of the flange portion 12 of the container 2.
- the container unloading area 160 the container 2 in which the upper surface of the flange portion 12 has been cleaned and gradually liquid-treated is unloaded from the support means 116 by an appropriate unloading means (not shown).
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Abstract
レーザ照射によって蓋(14)を容器(2)に加熱溶着する容器の密封装置において、容器(2)と蓋(14)の押圧を確実に行うと共に、上記レーザ照射による加熱溶着を効率的に行い、その装置も複雑化、大型化させることなく、生産能力を向上させる。 容器の密封装置は、回転主軸(24)と、回転主軸の周囲に配設され、円形搬送経路に沿って複数のポケット(40)を有する回転ターレット手段(38)と、複数のポケット(40)に対応して、回転ターレット手段(38)の下方に配設され、公転及び自転可能な複数の容器支持手段(42)と、容器支持手段(42)の各々に対応して、回転ターレット手段(38)の上方に配設され、公転及び自転可能であると共に、容器支持手段に対して相対的に昇降動可能である複数の蓋押圧手段(44)と、容器支持手段(42)と蓋押圧手段(44)とにより蓋(14)が押圧された容器(2)に向けて、レーザを照射して容器(2)に蓋(14)を加熱溶着する公転可能な複数のレーザ照射手段(46)とを具備する。
Description
本発明は、容器の密封装置、更に詳しくはレーザ照射によって蓋を容器に加熱溶着する容器の密封装置、及びかかる容器の密封装置と共に容器の密封に先立って容器のフランジ部を洗浄する容器のフランジ部洗浄装置を含む容器の密封システムに関する。
各種食品或いはペットフード等の内容物のための容器として、適宜樹脂から成り、底壁、底壁から上方に延びる側壁、及び側壁の上端から半径方向外方に延出するフランジ部を有する形態のカップ状、或いはトレイ状の容器が広く実用に供されている。このような容器の使用に際しては、容器内に内容物を充填し、次いで、可塑性合成樹脂から成る成形蓋のフランジを容器のフランジ部上に載置し、しかる後に蓋のフランジを容器のフランジ部に固着して密封する。そして、この種の容器の密封に関して、容器を搬送する容器搬送手段と、該容器搬送手段の搬送速度と同じ速度で回転する回転円盤体とを備え、容器胴体に装着された蓋を押さえる蓋固定手段を、上記回転円盤体の周縁に等間隔に複数個配置し、容器胴体と蓋との溶接予定箇所にレーザ光を照射する密封容器の製造装置が下記特許文献1に開示されている。
一方、下記特許文献2には、容器及び蓋をレーザ溶着により密封する方法として、容器又は蓋の一方がレーザを透過可能な熱可塑性樹脂、他方が熱可塑性樹脂にレーザを吸収して発熱する発熱物質を含有させた樹脂組成物から成り、上記レーザが、強度分布が一様な矩形ビームを照射可能なレーザであり、上記蓋及び容器の溶着界面における、レーザ照射により上昇する温度の上限の範囲、上記上限温度に達する条件を規定した容器及び蓋のレーザ溶着による密封方法が開示されている。
しかしながら、上記特許文献1の密封容器の製造装置は、レーザ光の光路上に配置される上述した蓋固定手段の押当板の押当部が、レーザ光に対して透光性を有するガラス、アクリル樹脂等の材料で形成されている。このため、容器胴体に装着された蓋を押さえる荷重に対する耐久性が劣り、また、埃、汚れが付着した場合は、レーザ光の透過性の低下を生じ、さらに、レーザ光を斜めから照射する場合は、上記レーザ光の屈折を生じ、いずれの場合もレーザ照射による加熱溶着を効率的に行うことができない恐れが有る。
また、上記特許文献1の密封容器の製造装置においては、上記回転円盤体の回転軸に設置された光分岐器を備える蓋溶接手段に、光ファイバー等の光接続手段を介して複数のレーザ光照射部を接続する密封容器の製造装置も提案されているが、このような装置構成は、装置の複雑化、且つ大型化を招くことになる。
また、上記特許文献1の密封容器の製造装置においては、上記回転円盤体の回転軸に設置された光分岐器を備える蓋溶接手段に、光ファイバー等の光接続手段を介して複数のレーザ光照射部を接続する密封容器の製造装置も提案されているが、このような装置構成は、装置の複雑化、且つ大型化を招くことになる。
一方、上記特許文献2は、容器及び蓋のレーザ溶着による密封方法において、短時間で確実に密封するレーザ溶着方法が提案されているが、レーザ溶着を行って容器を密封する装置として、その装置を複雑化、大型化することなく、生産能力を向上させる装置構成に関しては提案されていない。
更に、容器内に内容物を充填した際に、容器のフランジ部の上面に内容物が付着する場合がある。このように、容器のフランジ部の上面に内容物が付着した状態で成形蓋を載置し、レーザ照射によって容器のフランジ部に蓋を溶着して容器を密封すると、成形蓋の外周縁部と容器のフランジ部との間に介在する内容物に起因して密封不良が発生する虞がある。
本発明は上記事情に鑑みてなされたものであり、その主たる技術的課題は、レーザ照射によって蓋を容器に加熱溶着する容器の密封装置において、容器と蓋の押圧を確実に行うと共に、上記レーザ照射による加熱溶着を効率的に行い、その装置も複雑化、大型化させることなく、生産能力を向上させることができる新規、且つ改良された容器の密封装置を提供することである。
本発明の他の技術的課題は、上記した容器の密封装置と共に、上記容器の密封装置によって容器を密封するのに先立って、容器のフランジ部に付着した内容物を除去し、且つ上記フランジ部を洗浄する際の内容物、洗浄液等の異物の容器内への混入を確実に回避して、容器のフランジ部の上面を高効率で洗浄することができる容器のフランジ部洗浄装置を含む、新規、且つ改良された容器の密封システムを提供することである。
本発明によれば、上記主たる技術的課題を達成する容器の密封装置として、
回転主軸と、
該回転主軸の周囲に配設され、円形搬送経路に沿って複数のポケットを有する回転ターレット手段と、
該複数のポケットの各々に対応して、該回転ターレット手段の下方に配設され、公転及び自転可能な複数の容器支持手段と、
該容器支持手段に対応して、該回転ターレット手段の上方に配設され、公転及び自転可能であると共に、該容器支持手段に対して相対的に昇降動可能な複数の蓋押圧手段と、
該容器支持手段と該蓋押圧手段とにより蓋が押圧された容器に向けて、レーザを照射して容器に蓋を加熱溶着する公転可能な複数のレーザ照射手段と、
を具備することを特徴とする容器の密封装置が提供される。
回転主軸と、
該回転主軸の周囲に配設され、円形搬送経路に沿って複数のポケットを有する回転ターレット手段と、
該複数のポケットの各々に対応して、該回転ターレット手段の下方に配設され、公転及び自転可能な複数の容器支持手段と、
該容器支持手段に対応して、該回転ターレット手段の上方に配設され、公転及び自転可能であると共に、該容器支持手段に対して相対的に昇降動可能な複数の蓋押圧手段と、
該容器支持手段と該蓋押圧手段とにより蓋が押圧された容器に向けて、レーザを照射して容器に蓋を加熱溶着する公転可能な複数のレーザ照射手段と、
を具備することを特徴とする容器の密封装置が提供される。
好適形態においては、該主軸には、該回転ターレット手段の上方に位置する上側テーブル手段と、該回転ターレット手段の下側に位置する下側テーブル手段とが配設されており、該蓋押圧手段は該上側テーブル手段に配設され、該レーザ照射手段は該下側テーブル手段に配設されている。
また、該容器支持手段が昇降動自在に配設されており、該容器支持手段の各々を昇降動する昇降動手段が付設されていることが好ましい。
更に、該レーザを下方から照射すること、該レーザ照射手段の各々はダイレクトダイオードレーザであること、容器はフランジ部を有する形態で、蓋は容器のフランジ部上に載置される成形蓋であることが好ましい。
また、該容器支持手段が昇降動自在に配設されており、該容器支持手段の各々を昇降動する昇降動手段が付設されていることが好ましい。
更に、該レーザを下方から照射すること、該レーザ照射手段の各々はダイレクトダイオードレーザであること、容器はフランジ部を有する形態で、蓋は容器のフランジ部上に載置される成形蓋であることが好ましい。
また、本発明によれば、上記他の技術的課題を達成する容器の密封システムとして、本発明の容器の密封装置によって密封される容器のフランジ部を、密封に先立って洗浄する容器のフランジ部洗浄装置を備え、
該容器のフランジ部洗浄装置が、該容器を支持する支持手段と、該フランジ部の内周端に密接及び離隔し、容器に対して相対的に往復動する密封手段と、該密封手段の上方に配置され、該密封手段を該内周端に密接させて該フランジ部の上面に洗浄液を噴射し、洗浄液の噴射後に該フランジ部の上面に気体を噴射する洗浄・除液手段と、を具備する、
ことを特徴とする容器の密封装置が提供される。
該容器のフランジ部洗浄装置が、該容器を支持する支持手段と、該フランジ部の内周端に密接及び離隔し、容器に対して相対的に往復動する密封手段と、該密封手段の上方に配置され、該密封手段を該内周端に密接させて該フランジ部の上面に洗浄液を噴射し、洗浄液の噴射後に該フランジ部の上面に気体を噴射する洗浄・除液手段と、を具備する、
ことを特徴とする容器の密封装置が提供される。
好適形態においては、該洗浄・除液手段は、噴射口及び該噴射口に至る流路を有し、該流路を介して該噴射口に洗浄液を供給する洗浄液供給源と、気体を供給する気体供給源とを備える。また、該噴射口が周方向に適宜間隔をおいた多数の小孔であること、該密封手段の外周面が逆円錐台形状であること、該密封手段の少なくとも該容器のフランジ部の内周端に密接する部位がゴム状弾性体であることが好ましい。更に、容器のフランジ部洗浄装置を、容器搬入領域、該密封手段を該容器のフランジ部に密接する密封領域、該フランジ部の洗浄領域、該フランジ部の除液領域、該密封手段を該フランジから離隔する離隔領域及び容器搬出領域を順次含む円形搬送経路に沿って配設し、公転させるのが好適である。
本発明の容器の密封装置によれば、容器と蓋の押圧が複数のポケットを有する回転ターレット、複数の容器支持手段及び複数の蓋押圧手段により確実に行い、複数の小型化、軽量化されたダイレクトオードレーザ等から成るレーザ照射手段よってレーザ照射することにより、レーザ照射に際して、上記各手段の影響を受けずに加熱溶着を効率的に行うことができ、装置を複雑化、大型化することなく、生産能力を向上させることができる。
また、本発明の容器の密封シシテムによれば、上記した容器の密封装置による密封に先立って、容器内への内容物の充填時に容器のフランジ部の上面に付着した内容物が、蓋材による密封前に上記フランジ部の上面から除去されて洗浄が確実に行われると共に、上記除去、洗浄の際の、内容物、或いは洗浄液等の異物の容器内への混入が確実に回避され、上記異物による密封不良を確実に防止することができる。更に、本発明の容器の密封システムによれば、上述した容器のフランジ部の上面に付着した内容物の除去と洗浄を確実に高効率で行うことができる。
また、本発明の容器の密封シシテムによれば、上記した容器の密封装置による密封に先立って、容器内への内容物の充填時に容器のフランジ部の上面に付着した内容物が、蓋材による密封前に上記フランジ部の上面から除去されて洗浄が確実に行われると共に、上記除去、洗浄の際の、内容物、或いは洗浄液等の異物の容器内への混入が確実に回避され、上記異物による密封不良を確実に防止することができる。更に、本発明の容器の密封システムによれば、上述した容器のフランジ部の上面に付着した内容物の除去と洗浄を確実に高効率で行うことができる。
図1は、本発明の容器の密封装置によって、加熱溶着して密封する容器の典型例を蓋と共に示している。適宜の熱可塑性合成樹脂から成形した容器2は、円形底壁部4、この底壁部4の外周縁から上方に延びる逆円錐台形状の主側壁部6、主側壁部6の上端縁から半径方向外側が延びる円環形状の張出壁部(スタック部)8、張出壁部8の外周縁から上方に延びる円筒形状の付加側壁部10及び付加側壁部10の上端縁から半径方向外方に実質上水平に延びるフランジ部12を有する。同様に適宜の熱可塑性樹脂から成形した蓋14は、円形主部16、この主部16の外周縁から上方に延びる立ち上がり壁部18及び立ち上がり壁部18の上端縁から半径方向外方に水平に延びるフランジ20を有する。そして、容器2に内容物を充填した後に、図1に図示する如く、蓋14の主部16及び立ち上がり部18を容器2内に嵌着し、蓋14のフランジ20を容器2のフランジ部12に密接して、蓋14のフランジ20と容器2のフランジ部12を加熱溶着して容器2が密封される。
図2は、本発明の容器の密封装置の好適実施形態を示し、全体を符号22で示す密封装置は、実質上鉛直に延在する回転主軸24を具備し、この回転主軸24の外周面には、全体として略円筒形状の連結部材26が固定されている。そして、連結部材26の下端部は、適宜の支持構造(図示していない)によって支持された静止基板28に、ベアリング手段29を介して回転自在に装着されている。図示していないが、回転主軸24の上端部も静止構造にベアリング手段を介して回転自在に装着されている。また、回転主軸24の下端は、静止基板28を貫通して下方に延出し、電動モータ及び伝動機構を含む回転手段30に駆動連結されており、回転主軸24が回転手段30によって時計方向に回転駆動する(図3参照)。
回転主軸24の外周面に固定された連結部材26の上端には、円板形状の上側テーブル手段32が固定され、連結部材26の下部には、円板形状の下側テーブル手段34が固定されている。また、上側テーブル手段32には、下方に位置する装着部36が付設され、この装着部36に、円板形状の回転ターレット手段38が固定されている。そして、図3に示すように、回転ターレット手段38の外周には、略半円形状の切欠、即ちポケット40が周方向に等間隔をおいて複数個、図示の場合は6個、配設されている。
さらに、上記回転ターレット手段38の各々のポケット40に対応して、上記連結部材26に容器支持手段42、上記上側テーブル手段32に蓋押圧手段44がそれぞれ配設され、上記下側テーブル手段34にレーザ照射手段46がそれぞれ配設されている。そして、各々の容器支持手段42と蓋押圧手段44は整合し、且つ各々のポケット40に整合して、ポケット40の下方、或いは上方にそれぞれ配置されている。
また、上記各々のポケット40に対応して、上記連結部材26の外周面には、上下方向に延在する案内レール部材48が固定され、かかる案内レール部材48に昇降部材50が上下方向に移動自在に、即ち昇降動自在に装着されている。そして、この昇降動部材50には、上述した容器支持手段42が装着され、各々の容器支持手段42はカップ状部材52と、このカップ状部材52の下面中央から下方に垂下する軸部材54とを有する。カップ状部材52の円筒形側壁には、周方向に間隔をおいて複数個の円形開口56がカップ状部材52を軽量化し、容器支持手段42の回転駆動源68の負荷を低減するために形成されている。軸部材54の外側には拘束部材57が、軸部材54に対して相対的に昇降動自在に装着されている。さらに、上記昇降動部材50の上端部には、半径方向外方に張り出した第一支持フランジ58が形成されており、この第一張出フランジ58にはベアリング手段59を介して、上記拘束部材57が回転自在に装着されている。また、拘束部材57の内周面には下方にテーパ状の肩面60が形成され、一方、軸部材54の下端には半径方向外方に張り出した係止フランジ61が形成され、係止フランジ61が肩面60に当接することによって、拘束部材57に対する軸部材54の上昇が制限される。
昇降動部材50の上下方向中間部には、半径方向外方に張り出した第二支持フランジ62が形成され、この第二支持フランジ62にはベアリング手段64を介して接続部材66が回転自在に装着され、この接続部材66の上端は、上記拘束部材57の下端に連結されている。また、上記昇降部材50の下端部には、サーボモータ等の回転駆動源68が装着され、この回転駆動源68の上方に突出した出力軸は、摩擦クラッチ等の伝動手段70を介して、上記接続部材66の下端に駆動連結されている。さらに、接続部材66は、その上半部が円筒状に形成され、この上半部内には圧縮コイルばね72が収容されている。そして、圧縮コイルばね72の上端は、軸部材54の下端面に当接され、軸部材54は接続部材66に対して、圧縮コイルばね72によって上方に向かって弾性的に支持されている。
上記昇降部材50の下端部及び回転駆動源68の下端部は、下側テーブル手段34に形成した開口74を貫通して、下側テーブル手段34の下方に延設されている。また、昇降部材50の下端部には、カム従動節を構成するカムローラ76が回転自在に装着されている。一方、上述した静止基板28のベアリング手段29の外側に位置する静止連結部材77を介してカムブロック78が固定され、このカムブロック78に、周方向に連続して延在するカム溝が形成されている。そして、昇降部材50に装着されたカムローラ76は、カムブロック78に形成されたカム溝に係合され、回転主軸24の回転に伴って、昇降部材50及びこれに装着された容器支持手段42が昇降動する。即ち、カムブロック78に形成されているカム溝及び昇降部材50に装着されたカムローラ76は、各々の容器支持手段42を昇降動する昇降動手段を構成する。
さらに、本実施形態における蓋押圧手段44は、軸部材80とこの軸部材80の下端に固定された円板形態の押圧部材82とから構成され、この押圧部材82の表面は実質上水平に延在する平坦面である。軸部材80はベアリング手段84を介して上記上側テーブル手段42に回転自在に装着されている。
上記下側テーブル手段34上には、回転ターレット手段42の各々のポケット40に対応して、レーザ照射手段46を支持する支持基台86が固定されている。そして、支持基台86の各々の傾斜支持面に上記レーザ照射手段46が、好ましくは支持面に沿って位置調節自在に、且つ支持面に対する角度調節自在に装着されている。このレーザ照射手段46は、比較的コンパクトなダイレクトダイオードレーザが好ましい。
次いで、図2乃至図4を参照して容器の密封工程を説明する。
先ず、回転主軸24が時計方向に連続的に回転し、同様に回転ターレット手段38、上側テーブル手段32及び下側テーブル手段34も時計方向に回転する。この結果、回転ターレット手段38に配設された各々のポケット40、容器支持手段42、蓋押圧手段44及びレーザ照射手段46が公転し、搬入領域90、容器上昇領域92、レーザ照射領域94、容器下降領域96及び搬出領域98を順次に含む円形搬送経路に沿って搬送される。
先ず、回転主軸24が時計方向に連続的に回転し、同様に回転ターレット手段38、上側テーブル手段32及び下側テーブル手段34も時計方向に回転する。この結果、回転ターレット手段38に配設された各々のポケット40、容器支持手段42、蓋押圧手段44及びレーザ照射手段46が公転し、搬入領域90、容器上昇領域92、レーザ照射領域94、容器下降領域96及び搬出領域98を順次に含む円形搬送経路に沿って搬送される。
そして、上記搬入領域90においては、蓋14が被嵌された容器2が適宜の搬入手段(図示していない)によってポケット40に搬入され、図4(A)に示すように、容器2のフランジ部12が、回転ターレット手段38によって懸架される。次いで、容器上昇領域92においては、容器支持手段42を、上述した回転駆動源68、伝動手段70及び接続部材66によって自転させると共に、昇降部材50の下端部のカムローラ76、静止基板28の静止連結部材77を介して固定されたカムブロック78のカム溝によって上昇させる。この結果、図4(B)に示すように、容器支持手段42のカップ状部材52に容器2の主部が収容され、カップ状部材52の上端縁が容器2の張出壁部(スタック部)8(図1参照)の下面に当接し、上記容器2及び蓋14を自転させながら上昇させ、回転ターレット手段38から上方に離隔する。その後、上記カップ部材57を、容器支持手段42のカップ状部材52によって突き上げ、圧縮コイルばね72の弾性力を付与した状態で、蓋14を蓋押圧手段44の押圧部材82によって押圧し、容器2のフランジ部12と蓋体14のフランジ20を密着させる。
レーザ照射領域94においては、図4(C)に示すように、押圧手段44によって容器2のフランジ部12と蓋体14のフランジ20が押圧、密着され、自転する容器2のフランジ部12に、レーザ照射手段46からレーザ光が照射され、上記容器2のフランジ部12の周方向全周に渡ってレーザ光が照射される。このレーザ照射手段46によるレーザ光が照射によって、蓋14のフランジ部20が周方向全周に渡って、容器2のフランジ部12に加熱溶着され、容器2が密封される。また、レーザ照射に際して、レーザ光を下方から照射することにより、上述した各手段の影響を受けずに、加熱溶着をより一層効率的に行うことができる。
最後に、容器下降領域96においては、容器支持手段42が、図4-Aに図示する位置まで回転しながら下降し、蓋14が加熱溶着された容器2が回転ターレット手段38に懸架されると共に、上記容器支持手段42が容器2から下方に離隔される。尚、所望ならば、容器支持手段42の回転は、容器上昇領域92で開始し、容器下降領域96で終了することもできる。また、搬出領域98においては、蓋14が加熱溶着された容器2が適宜の搬出手段(図示せず)によって回転ターレット手段38から搬出される。さらに、図3に簡略に示すように、容器上昇領域92及び容器下降領域96においては、回転ターレット手段38のポケット40から容器2が脱落するのを防止するため、弧状に延在する外側静止ガイド100が配設されている。図示の実施形態においては、容器支持手段42を上昇して、蓋14のフランジ20を蓋押圧手段44で押圧しているが、これに代えて容器支持手段42で押圧、或いは蓋押圧手段44と容器支持手段42との両手段によって押圧する構成を採用することもできる。
図5は、本発明の容器の密封システムにおいて、上記した容器の密封装置によって密封される容器のフランジ部を、密封に先立って洗浄する容器のフランジ部洗浄装置102の好適実施形態と共に、かかる洗浄装置によってフランジ部が洗浄される容器の典型例(図1参照)である容器2を示している。
上記容器2のフランジ部12の上面を洗浄するための図示のフランジ部洗浄装置102は、支持手段116、洗浄・除液手段118及び密封手段120を具備している。容器2を支持するための支持手段116は、水平に延在する上面を有し、この上面の中央部には円形凹部122が形成されている。円形凹部122の内径は容器2の下端部外径に対応しており、図5に図示するように、容器2の下端部を円形凹部122内に装着して、容器2が直立状態で支持手段116に支持される。
洗浄・除液手段118は、全体として円板形状である基板124、略円板形状の内側部材126及びこの内側部材126の下端部を介して一体に設けた円環板形状の外側部材128を有している。基板124は、適宜の装着手段(図示していない)によって昇降自在に装着されており、流体圧シリンダ機構の如き適宜の昇降手段(図示していない)によって図5に図示する密封手段120が容器2のフランジ部12の内周端から離隔した状態(離隔位置)と、図6に図示する密封手段120が容器2のフランジ部12の内周端に密接した状態(密接位置)との間を昇降動、即ち往復動する。そして、外側部材128を締結ボルト130によって基板124の下面に固定し、上述した密封手段120を離隔状態と密接状態とする。また、基板124と内側部材126との間には、放射状に延在する多数の流路132が形成され、内側部材126の外周面と外側部材128の内周面との間には環状流路134が形成されており、上記内側部材126と外側部材128との下端部には、周方向に適宜間隔をおいた多数の小孔から成る噴射孔136が形成されている。さらに、基板124の中心部には、その上面から下方に延在して上記流路132に連通する流路138が形成され、この流路138には、洗浄液供給源140及び気体供給源142が接続されている。そして、洗浄液供給源140が作動すると、上水等の洗浄液が流路138、132及び環状流路134を介して噴射孔136に供給され、噴射孔136から噴射される。一方、気体供給源142が作動すると、圧縮空気等の気体が流路138、132及び134を介して噴射孔136に供給され、噴射孔136から噴射される。
尚、上述した上水等、気体を噴射する噴射孔136に変えて、内側部材126と外側部材128を別部材とし、それらの下端部にクリアランスを設けて周方向連続する円環形状の噴射部を形成しても良いが、容器2のフランジ部12の上面全体を効果的に洗浄及び洗浄後の徐液を行う点から、前者の周方向に適宜の間隔をおいた多数の小孔から成る噴射孔を形成するのが好ましい。
また、上述した噴射孔、噴射部の容器2のフランジ部12の上面に対する噴射角度は、30度乃至60度、特に40度乃至50度が、一層、洗浄及び洗浄後の徐液を効果的に行う点で好ましい。
尚、上述した上水等、気体を噴射する噴射孔136に変えて、内側部材126と外側部材128を別部材とし、それらの下端部にクリアランスを設けて周方向連続する円環形状の噴射部を形成しても良いが、容器2のフランジ部12の上面全体を効果的に洗浄及び洗浄後の徐液を行う点から、前者の周方向に適宜の間隔をおいた多数の小孔から成る噴射孔を形成するのが好ましい。
また、上述した噴射孔、噴射部の容器2のフランジ部12の上面に対する噴射角度は、30度乃至60度、特に40度乃至50度が、一層、洗浄及び洗浄後の徐液を効果的に行う点で好ましい。
密封手段120は、上記洗浄・除液手段118の内側部材126の下面に締結ボルトの如き適宜の締結手段(図示していない)によって固定され、上記基板124の昇降動に付随して図5に図示する離隔位置と、図6に図示する密接位置との間を昇降動、即ち往復動する。密封手段120は、その外周面の上半部が円筒形状、下半部分が逆円錐台形状を呈し、上記下半部の逆円錐台形状部分を、容器2のフランジ部12の内側端に密接させるのが好適である。このような密封手段120における容器2のフランジ部114の内側端に密接する部位の外周面は、ゴム硬度(JIS K 6253)が好適には10乃至70程度のゴム状弾性体を用いるのが望ましい。図示の実施形態においては、密封手段120は、適宜の金属或いは合成樹脂から形成された本体144と、この本体144の外周面下半部に、適宜手段によって装着された環状のゴム状弾性体146とから構成されている。
このように構成された本発明の容器のフランジ部洗浄装置は、図5に図示するように、内容物が充填された容器2が直立状態で支持手段116の円形凹部122上に搬入、載置される。次いで、基板124が図5に図示する離隔位置から図6に図示する密接位置に下降し、密封手段120のゴム状弾性体146を、容器2のフランジ部12の内終端に所要押圧力で密接させる。この結果、内容物が充填された容器2が密封手段120により密封される。そして、この密封後、洗浄液供給源140からの洗浄液を、上述した流路138、132及び環状流路134を介して噴射孔136に供給し、容器2のフランジ部12の上面に上記洗浄液を噴射して、上記フランジ部12の上面に付着した内容物を除去する。この後、洗浄液供給源140からの洗浄液の供給を停止し、気体供給源142からの気体を、同様に、上述した流路138、132及び環状流路134を介して噴射孔136に供給し、容器2のフランジ部12の上面に上記気体を噴射して、上記フランジ部12の上面に残留する洗浄液を除液する。このように、密封手段120を容器2のフランジ部12の内終端に密接させて上記容器2を密封した状態で、上記フランジ部12の上面の洗浄、徐液が行われる。このため、上記洗浄時の洗浄液、内容物、及び徐液時の噴射された気体、残留洗浄液の容器2内への侵入が確実に防止される。最後に、気体供給源142からの気体の供給を停止した後に、基板124を図5に図示する位置まで上昇させ、密封手段120を、容器2のフランジ部12の内側端から離隔させる。その後、支持手段116からフランジ部12の上面が洗浄・除液された容器2が搬出される。
上記実施形態においては、容器2に対して基板124を、即ち密封手段120を昇降動して、上記密封手段120を容器2のフランジ部12の内側端に密接及び離隔しているが、容器2を支持している支持手段116を昇降動して、密封手段120を容器2のフランジ部12の内側端に密接及び離隔することもでき、容器に対して相対的に密封手段120を往復動させれば良い。
図7は上記フランジ部洗浄装置102を、容器搬入領域150、密封領域152、洗浄領域154、除液領域156、離隔領域158、及び容器搬出領域160を含む円形搬送経路162に沿って配設し、公転させる状態を示す図である。この状態においては、上記フランジ部洗浄装置102が複数個(図示の場合は20個)、等間隔をおいて配列されており、円形搬送経路162に沿って矢印164で示す方向に連続的に公転される。そして、容器搬入領域150において、適宜の搬入手段(図示していない)によって洗浄装置102の支持手段116上に、内容物が充填された容器2が搬入、載置される。次いで、密封領域152において、密封手段120が下降して容器2のフランジ部12の内周端に密接し、内容物が充填された容器2が密封される。密封後、洗浄領域154において、洗浄液供給源140が作動し、容器2のフランジ部12の上面に洗浄液が噴射され上記フランジ部の洗浄が行われる。次いで、洗浄後、除液領域156において、気体供給源142が作動し、容器2のフランジ部12の上面に気体が噴射され、上記洗浄液の徐液が行われる。この徐液後、離隔領域158において、密封手段120が上昇し、容器2のフランジ部12の内周端から離隔する。最後に、容器搬出領域160においは、適宜の搬出手段(図示していない)によって、支持手段116上からフランジ部12の上面が洗浄、徐液が行われた容器2が搬出される。
Claims (12)
- 回転主軸と、
該回転主軸の周囲に配設され、円形搬送経路に沿って複数のポケットを有する回転ターレット手段と、
該複数のポケットの各々に対応して、該回転ターレット手段の下方に配設され、公転及び自転可能な複数の容器支持手段と、
該容器支持手段に対応して、該回転ターレット手段の上方に配設され、公転及び自転可能であると共に、該容器支持手段に対して相対的に昇降動可能な複数の蓋押圧手段と、
該容器支持手段と該蓋押圧手段とにより蓋が押圧された容器に向けて、レーザを照射して容器に蓋を加熱溶着する公転可能な複数のレーザ照射手段と、
を具備することを特徴とする容器の密封装置。 - 該主軸には、該回転ターレット手段の上方に位置する上側テーブル手段と、該回転ターレット手段の下側に位置する下側テーブル手段とが配設されており、該蓋押圧手段は該上側テーブル手段に配設され、該レーザ照射手段は該下側テーブル手段に配設されている、請求項1に記載の容器の密封装置。
- 該容器支持手段が昇降動自在に配設されており、該容器支持手段の各々を昇降動する昇降動手段が付設されている、請求項1又は2に記載の容器の密封装置。
- 該レーザを下方から照射する、請求項1乃至3のいずれかに記載の容器の密封装置。
- 該レーザ照射手段はダイレクトダイオードレーザである、請求項1乃至4のいずれかに記載の容器の密封装置。
- 該容器はフランジ部を有する形態であり、蓋は容器のフランジ部上に載置される成形蓋である、請求項1乃至5のいずれかに記載の容器の密封装置。
- 請求項1乃至6のいずれかに記載の密封装置と、密封される容器のフランジ部を、密封に先立って洗浄する容器のフランジ部洗浄装置から成る容器の密封システムにして、
該フランジ部洗浄装置が、該容器を支持する支持手段と、該フランジ部の内周端に密接及び離隔し、容器に対して相対的に往復動する密封手段と、該密封手段の上方に配置され、該密封手段を該内周端に密接させて該フランジ部の上面に洗浄液を噴射し、洗浄液の噴射後に該フランジ部の上面に気体を噴射する洗浄・除液手段とを具備する、
ことを特徴とする容器の密封システム。 - 該洗浄・除液手段は、噴射口及び該噴射口に至る流路を有し、該流路を介して該噴射口に洗浄液を供給する洗浄液供給源と、気体を供給する気体供給源とを備える、請求項7に記載の容器の密封システム。
- 該噴射口が周方向に適宜間隔をおいた多数の小孔である、請求項8に記載の容器の密封システム。
- 該密封手段の外周面が逆円錐台形状である、請求項7乃至9のいずれかに記載の容器の密封システム。
- 該密封手段の少なくとも該容器のフランジ部の内周端に密接する部位がゴム状弾性体である、請求項7乃至10のいずれかに記載の容器の密封システム。
- 該容器のフランジ部洗浄装置を、容器搬入領域、該密封手段を該容器のフランジ部に密接する密封領域、該フランジ部の洗浄領域、該フランジ部の除液領域、該密封手段を該フランジから離隔する離隔領域及び容器搬出領域を順次含む円形搬送経路に沿って配設し、公転させる、請求項7乃至11のいずれかに記載の容器の密封システム。
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Also Published As
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EP3078600A4 (en) | 2017-07-12 |
EP3078600A1 (en) | 2016-10-12 |
EP3078600B1 (en) | 2018-05-30 |
CN105849001A (zh) | 2016-08-10 |
US20160288939A1 (en) | 2016-10-06 |
CN105849001B (zh) | 2018-04-20 |
US10683117B2 (en) | 2020-06-16 |
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