JPH0672457A - Compound lid of metal and synthetic resin, method and device for manufacturing the same - Google Patents

Compound lid of metal and synthetic resin, method and device for manufacturing the same

Info

Publication number
JPH0672457A
JPH0672457A JP4244023A JP24402392A JPH0672457A JP H0672457 A JPH0672457 A JP H0672457A JP 4244023 A JP4244023 A JP 4244023A JP 24402392 A JP24402392 A JP 24402392A JP H0672457 A JPH0672457 A JP H0672457A
Authority
JP
Japan
Prior art keywords
lid
inner lid
synthetic resin
metal
adhesive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4244023A
Other languages
Japanese (ja)
Other versions
JP2629530B2 (en
Inventor
Hiroshi Takeda
宏 竹田
Mitsuo Takayanagi
光男 高柳
Akira Okada
章 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Seikan Group Holdings Ltd
Original Assignee
Toyo Seikan Kaisha Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Seikan Kaisha Ltd filed Critical Toyo Seikan Kaisha Ltd
Priority to JP4244023A priority Critical patent/JP2629530B2/en
Publication of JPH0672457A publication Critical patent/JPH0672457A/en
Application granted granted Critical
Publication of JP2629530B2 publication Critical patent/JP2629530B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—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 structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/26—Hot fluid
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3644—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a ribbon, band or strip
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3604—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint
    • B29C65/3656—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the type of elements heated by induction which remain in the joint being a layer of a multilayer part to be joined, e.g. for joining plastic-metal laminates
    • 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
    • B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
    • 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
    • B29C65/76—Making non-permanent or releasable joints
    • 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
    • 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
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • 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
    • B29C66/22—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns
    • B29C66/223—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being in the form of recurring patterns being in the form of a triangle wave or of a sawtooth wave, e.g. zigzagged
    • 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
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • 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
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • B29C66/812—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—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 composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29C66/818—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811—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 cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • 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
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83541—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws flying jaws, e.g. jaws mounted on crank mechanisms or following a hand over hand movement
    • 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
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/36—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction
    • B29C65/3672—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint
    • B29C65/3676—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic
    • B29C65/368—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" heated by induction characterised by the composition of the elements heated by induction which remain in the joint being metallic with a polymer coating
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4815—Hot melt adhesives, e.g. thermoplastic adhesives
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • B29C65/4835—Heat curing adhesives
    • 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
    • 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
    • B29C66/7394—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 thermoset
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7422—Aluminium or alloys of aluminium
    • 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
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Closures For Containers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To perform adhesion of a metal inner lid and a synthetic resin outer lid in such a manner as to satisfy the adhesion and peelable property in the same station following the molding of the outer lid. CONSTITUTION:An outer lid is adhered peelably with an adhesive paint to an upper surface of a top plate part of an inner lid 2 through two endless adhering areas separated in a diametrical direction, that is, a zigzag-ringed outer peripheral endless adhering area and an inner peripheral endless adhering area. A mold die assembly is composed of a high frequency induction heating coil 42 and a ceramic female die plate member 45 which is provided in a die recess formed in the end surface of a ferrite core member 44 which is inserted into a core part of the coil 42. Thus, the coil 42 forms directly or indirectly a female die. The inner lid, after molding of the upper lid is heated in the die to melt adhesive paint, by which an adhesion of the upper lid is made.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、注射用薬液や輸液等を
充填した容器に装着するための金属と樹脂の複合蓋とそ
の製造方法並びにその製造装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal-resin composite lid for mounting on a container filled with injectable liquid medicine or infusion solution, a method for manufacturing the same, and a manufacturing apparatus for the same.

【０００２】[0002]

【従来の技術】注射用薬液や輸液等（以下、単に薬液と
する）を充填した瓶等の容器は、容器口部に注射針が刺
通できるゴム中栓を嵌合し、さらに該中栓の開栓を防止
すると共に中栓へのごみの付着を防止するためにその外
方から容器口頸部にかしめて固定する蓋を装着してあ
る。該蓋は、一般に、中央部に開口部が形成された頂板
部と該頂板部から垂下するスカート部からなるアルミニ
ューム板等で成形された金属シェルの内蓋と、該内蓋の
頂板部を覆って前記開口部を遮蔽する合成樹脂製の外蓋
とからなる複合蓋となっており、使用時には、外蓋を剥
離して内蓋の開口部からゴム中栓上面を露出させ、注射
針を穿刺できるようになっている。従って、複合蓋の外
蓋は、通常の状態では金属製の内蓋上面から容易に剥離
することなく開口部を密封してゴム栓の清潔さを保ち、
且つ使用時には簡単に剥離できる様な技術的要求を満た
すことが要求されている。2. Description of the Related Art A container such as a bottle filled with an injectable drug solution, an infusion solution or the like (hereinafter, simply referred to as a drug solution) is fitted with a rubber inner stopper through which an injection needle can be inserted at the mouth of the container. In order to prevent the opening of the container and to prevent dust from adhering to the inside plug, a lid is caulked and fixed to the neck of the container from the outside. The lid is generally composed of an inner lid of a metal shell formed of an aluminum plate or the like including a top plate portion having an opening formed in the center and a skirt portion hanging down from the top plate portion, and a top plate portion of the inner lid. It is a composite lid consisting of a synthetic resin outer lid that covers and shields the opening.When using, the outer lid is peeled off to expose the upper surface of the rubber inner plug from the opening of the inner lid, and Can be punctured. Therefore, the outer lid of the composite lid does not easily peel off from the upper surface of the inner lid made of metal in a normal state and seals the opening to keep the rubber stopper clean,
In addition, it is required to meet the technical requirements for easy peeling during use.

【０００３】従来の複合蓋の製造は、アルミニュームの
内蓋とは別に射出成形により合成樹脂の外蓋を成形し、
これらを組合せてホットプレスより外蓋に形成してある
爪部を内蓋開口部の裏面に係合させて一体化するか、又
は雄型に内蓋を支持させて該内蓋の頂板部を型面として
押出機から押し出される溶融樹脂を受け入れ、加圧成形
することにより、内蓋頂板部に合成樹脂の外蓋を直接成
形して一体化している。しかしながら、合成樹脂と金属
は接着性がないため接合面が簡単に剥離してしまうた
め、たとえ爪部を内蓋の開口部の周縁裏面に係合させて
外蓋と内蓋との一体化を図っても、加熱殺菌処理や冷却
時における金属と合成樹脂の熱膨張率の相違や衝撃等で
接合面が緩み易く、僅かな衝撃や外力で外蓋が内蓋に対
して回転可能になり、密封性が破壊され埃や雑菌が侵入
し易くなり、密封性（衛生性）の点で未だ満足のいくも
のではなかった。特に、開口部周辺しか密着係合してな
いため、レトルトで蒸気殺菌や湯殺菌を行うと、外蓋の
スカート部下端から内蓋と外蓋の境界面の隙間に蒸気や
湯が侵入して殺菌終了後も抜け切らずに、そのまま滞留
してしまうことがあった。In the manufacture of a conventional composite lid, an outer lid made of synthetic resin is formed by injection molding separately from an inner lid made of aluminum,
By combining these, the claw portion formed on the outer lid by hot pressing is engaged with the back surface of the inner lid opening to be integrated, or the inner lid is supported by a male mold to fix the top plate portion of the inner lid. A molten resin extruded from an extruder is received as a mold surface and pressure-molded, so that an outer lid made of synthetic resin is directly molded and integrated with a top plate portion of the inner lid. However, since the synthetic resin and metal do not have adhesiveness, the joint surface easily peels off, so even if the claws are engaged with the back surface of the peripheral edge of the opening of the inner lid, the outer lid and the inner lid are integrated. Even if it is designed, the joint surface is likely to loosen due to the difference in thermal expansion coefficient between metal and synthetic resin during heat sterilization treatment or cooling, impact, etc., and the outer lid can be rotated with respect to the inner lid by a slight impact or external force. The hermeticity is destroyed and dust and various bacteria are easily infiltrated, which is still unsatisfactory in terms of hermeticity (hygiene). In particular, since only the area around the opening is tightly engaged, when steam sterilization or hot water sterilization is performed with a retort, steam or hot water may enter the gap between the inner lid and outer lid from the lower end of the skirt of the outer lid. Even after the sterilization was completed, it sometimes stayed in place without being completely removed.

【０００４】その問題点を解決する手段として、本出願
人は、金属製の内蓋の外周面に凝集破壊性溶着密着剤含
有塗料層を形成し、上蓋成形後に内蓋を高周波誘導加熱
により加熱することによって、凝集破壊性溶着密着剤含
有塗料層を溶融させて内蓋と外蓋を外蓋のスカート部及
び又は内蓋の頂板部表面で接着させることによって密封
性を向上させることを先に提案した（特開平１−２１３
１６７号、特開平１−３１７７４７号）。凝集破壊性溶
着密着剤は、塗膜と合成樹脂との密着性はあるが、それ
自体の凝集力が比較的小さいため、剥離に際してそれ自
体容易に凝集破壊するので、外蓋の剥離性を確保するこ
とができる。As a means for solving the problem, the applicant of the present invention forms a coating layer containing a cohesive fracture welding adhesive on the outer peripheral surface of a metal inner lid, and heats the inner lid by high frequency induction heating after molding the upper lid. In order to improve the hermeticity by first melting the cohesive failure welding adhesive-containing paint layer and adhering the inner lid and the outer lid to the skirt portion of the outer lid and / or the surface of the top plate portion of the inner lid. Proposed (JP-A 1-213
167, JP-A-1-317747). The cohesive fracture adhesive adhesive has adhesion between the coating film and the synthetic resin, but its cohesive force is comparatively small, so it easily undergoes cohesive failure upon peeling, ensuring the peelability of the outer lid. can do.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、例えば
外蓋内面全体を凝集破壊性溶着密着剤含有塗料層を介し
て接着すると接着力が大きくなり剥離性が劣り、部分的
に接着すると密封性が劣るという問題があり、当然適正
範囲での凝集破壊性溶着密着剤含有塗料層の塗布が求め
られるが、密封性と剥離性の両者を完全に満足させるよ
うに凝集破壊性溶着密着剤含有塗料層を設けることは容
易でない。また、蓋製造上の効率からみれば、凝集破壊
性溶着密着剤含有塗料層が適正範囲に簡単に塗布できる
ことが要求される。However, for example, if the entire inner surface of the outer lid is adhered via the coating layer containing a cohesive fracture adhesive adhesive, the adhesive strength becomes large and the peeling property becomes poor, and if it is partially adhered, the sealing property becomes poor. However, it is naturally required to apply the coating layer containing cohesive failure welding adhesive in an appropriate range.However, the coating layer containing cohesive failure welding adhesive is required to completely satisfy both the sealing property and the peeling property. It is not easy to provide. Further, from the viewpoint of lid manufacturing efficiency, it is required that the cohesive fracture-bonding welding adhesive-containing coating layer can be easily applied within an appropriate range.

【０００６】一方、凝集破壊性溶着密着剤含有塗料層が
接着性を発揮するには、該密着剤含有塗料層が溶融しな
ければならない。そのため、先に提案した上記従来技術
では、内蓋の上面に合成樹脂外蓋を成形後、型抜きをし
て成形ターレットから高周波誘導加熱ヘッドが配置され
ている加熱ターレットに成形された複合蓋を移載し、該
ターレットで高周波誘導加熱ヘッドで外蓋上面を押圧し
て高周波誘導加熱により内蓋を加熱することによって、
凝集破壊性溶着密着剤含有塗料層を溶融させて内蓋と外
蓋の接着を行っている。すなわち、成形と接着は別々の
ターレット（ステーション）で行っているため、加工ス
テーションが一つ増えて製造効率が悪くなるという問題
があった。また、その場合、外蓋の成形から高周波誘導
加熱まで一旦冷却してから再び加熱することとなり、そ
の分エネルギー効率が悪いという問題点もある。On the other hand, in order for the coating layer containing a cohesive fracture-bonding adhesive agent to exhibit adhesiveness, the coating layer containing an adhesive agent must be melted. Therefore, in the above-mentioned prior art proposed above, after molding the synthetic resin outer lid on the upper surface of the inner lid, die-cutting is performed to form a composite lid formed on the heating turret in which the high-frequency induction heating head is arranged from the molding turret. By transferring and pressing the upper surface of the outer lid with the high frequency induction heating head with the turret to heat the inner lid by high frequency induction heating,
The inner lid and the outer lid are adhered by melting the coating layer containing the cohesive failure welding adhesive agent. That is, since the molding and the bonding are performed by different turrets (stations), there is a problem that the number of processing stations is increased and the manufacturing efficiency is deteriorated. In that case, there is also a problem that the energy efficiency is inferior because of the fact that the outer lid is once cooled to the high-frequency induction heating and then heated again.

【０００７】本発明は、上記従来の薬液用容器の複合蓋
における金属製の内蓋と合成樹脂製の外蓋の密封性と剥
離性の両者を完全に満足させるように凝集破壊性溶着密
着剤含有塗料層を設け、上蓋の十分な密封性と剥離性を
有する複合蓋を提供すること、及び前記複合蓋を製造す
るに際して、金属製の内蓋と合成樹脂製の外蓋の接着性
塗料層による接着が連続して一つのステーションで出
来、作業効率とエネルギー効率が良い薬液用容器の複合
蓋の製造方法及びその装置を提供することを目的とす
る。According to the present invention, a cohesive fracture-bonding adhesive agent is provided so as to completely satisfy both the sealing property and the peeling property of the metal inner lid and the synthetic resin outer lid in the above-mentioned conventional compound liquid container lid. Providing a composite lid having a coating layer containing content and having sufficient sealing and peeling properties for the upper lid, and in manufacturing the composite lid, an adhesive coating layer of an inner lid made of metal and an outer lid made of synthetic resin. It is an object of the present invention to provide a method and an apparatus for manufacturing a composite lid for a chemical solution container, which can be adhered continuously by one station at a single station and has good working efficiency and energy efficiency.

【０００８】[0008]

【課題を解決するための手段】本発明は、中央部に開口
部が形成されている頂板部と該頂板部の周囲から垂下し
たスカート部とからなる金属製の内蓋、該内蓋の頂板部
上面を覆う頂板部と、内蓋スカート部の上部外周に位置
する短いスカート部とを備えた剥離可能な合成樹脂製の
外蓋とからなる金属と合成樹脂の複合蓋において、前記
内蓋の頂板部上面に接着性塗料により、少なくとも外周
部がジグザグ状になっている無端接着域が形成され、該
無端接着域を介して前記内蓋と前記外蓋が剥離可能に接
着されていることを特徴とする構成によって、上記課題
を解決する金属と合成樹脂の複合蓋を得ることができ
た。According to the present invention, there is provided a metal inner lid comprising a top plate portion having an opening formed in a central portion and a skirt portion hanging down from the periphery of the top plate portion, and a top plate of the inner lid. In the composite lid of metal and synthetic resin, which comprises a peelable synthetic resin outer lid having a top plate portion covering the upper surface of the portion and a short skirt portion located on the outer periphery of the upper portion of the inner lid skirt portion, An endless adhesive region having a zigzag outer peripheral portion is formed on the upper surface of the top plate by an adhesive coating, and the inner lid and the outer lid are releasably adhered to each other through the endless adhesive region. With the characteristic structure, a composite lid of metal and synthetic resin that solves the above-mentioned problems can be obtained.

【０００９】前記無端接着域は、ジグザグ環状の外周側
無端接着域と、該外周側無端接着域よりも内蓋開口部側
に離間している内周側無端接着域との径方向に離間した
少なくとも二重の無端接着域よりなることが望ましく、
且つ前記内蓋の少なくとも頂板部上面全面に塗布された
接着性塗料層の上面又は下面に前記無端接着域を除く他
の部分に非接着性のマスキングインキ層を設けて形成す
ることが望ましい。また、上記接着性塗料としては、凝
集破壊性密着剤及び変性オレフィン樹脂を含有する凝集
破壊性溶着密着剤含有塗料が望ましい。さらに、前記外
蓋のスカート部の下端が肉厚となって内蓋外周面と接触
している構造にすることによって、該複合蓋の開栓性、
再蓋性が得られ望ましい。The endless adhesive region is radially separated from a zigzag ring-shaped outer peripheral endless adhesive region and an inner peripheral side endless adhesive region that is spaced closer to the inner lid opening than the outer peripheral endless adhesive region. It is desirable to have at least a double endless adhesive zone,
In addition, it is preferable that a non-adhesive masking ink layer is formed on the upper surface or the lower surface of the adhesive coating layer applied on at least the entire upper surface of the top plate portion of the inner lid, except for the endless adhesive area. Further, as the above-mentioned adhesive coating, a coating containing a cohesive fracture-bonding adhesive agent containing a cohesive fracture-adhesive agent and a modified olefin resin is desirable. Further, by making the lower end of the skirt portion of the outer lid thick and in contact with the outer peripheral surface of the inner lid, the openability of the composite lid,
It is desirable because it can be recapped.

【００１０】一方、上記金属と合成樹脂の複合蓋を製造
する本発明の製造方法は、内蓋を雄型組立体に保持して
該内蓋の外面を成形型面の一部として前記合成樹脂の外
蓋を金属の前記内蓋上部に成形する工程と、前記内蓋及
び前記外蓋を成形型内で加圧保持したまま前記工程の直
後に高周波誘導加熱により内蓋を加熱して該内蓋に塗布
されている接着性塗料を溶融して前記内蓋と前記外蓋を
接着する工程、接着が終了した前記内蓋と前記外蓋を成
形型内で冷却固定する工程とからなることを特徴とする
構成によって、上記技術課題を解決している。On the other hand, according to the manufacturing method of the present invention for manufacturing the composite lid of the metal and the synthetic resin, the synthetic resin is held by holding the inner lid in the male mold assembly and making the outer surface of the inner lid part of the molding die surface. The step of forming the outer lid on the upper part of the metal inner lid, and heating the inner lid by high frequency induction heating immediately after the step while keeping the inner lid and the outer lid under pressure in the molding die. A step of melting the adhesive coating applied to the lid to bond the inner lid and the outer lid, and a step of cooling and fixing the inner lid and the outer lid that have been bonded in a mold. The above technical problem is solved by the characteristic configuration.

【００１１】また上記複合蓋の製造装置は、前記内蓋を
頂面に嵌合支持するコア部材を有する雄型組立体と、高
周波誘導加熱コイル及び該高周波誘導加熱コイルのコア
部に嵌合されたフェライト等の心材の端面が直接又は間
接的に雌型キャビティを形成している雌型組立体とによ
り成形型組立体を構成していることを特徴としている。
そして、前記雌型キャビティは、高周波誘導加熱コイル
及び該高周波誘導コイルのコア部に嵌合された心材の端
面に形成された凹部に嵌合固定されたセラミックスの雌
型面部材で形成された雌型面を有していることが望まし
い。In the above-described apparatus for manufacturing a composite lid, a male assembly having a core member for fitting and supporting the inner lid on the top surface, a high frequency induction heating coil and a core portion of the high frequency induction heating coil are fitted. Further, the molding die assembly is constituted by a female die assembly in which an end surface of a core material such as ferrite directly or indirectly forms a female die cavity.
The female mold cavity is formed of a high frequency induction heating coil and a female mold face member made of ceramics fitted and fixed in a recess formed in the end face of the core material fitted in the core part of the high frequency induction coil. It is desirable to have a mold surface.

【００１２】[0012]

【作用】外蓋は、外蓋スカート部の片側下端縁を指で上
側に押し上げることにより開けるため、頂板の外周側端
部より剥離が始まり、剥離の始まりが最も抵抗が大き
い。従って、剥離を容易にするには剥離が始まる頂板端
部での接着面積が少ないのが望ましい。接着域の外周部
をジグザグ状にすることによって、最初にジグザグの先
端、即ち点から剥離が始まるので、単にリング状にした
場合よりも初期剥離抵抗が少なく、且つその後もジグザ
グ環状の接着域を部分的に横切って剥離して行くことに
なるので、剥離抵抗が少ない。反面、接着域をジグザグ
環状にすることによって、接着域の面積が単にリング状
にする場合と比べて増大し、密封性が一段と高くなる。
しかも、外側接着域とそれと離間して内側無端接着域を
設けると、例え外側接着域が破壊されてゴミや水、雑菌
等が侵入してきても、内側接着域で阻止され、中栓のゴ
ム面が汚染されことを防ぐことができる。つまり、本発
明の複合蓋は、二重の無端接着域によって二重に防御さ
れていることになり、密封性に優れ、且つ二重の無端接
着域を設けることによって、外側の無端接着域をより細
幅に形成することができ、ジグザグ形状と相まって剥離
性にも優れ、密封性と剥離性の相反する要求を同時に満
たすことができる。また、外蓋のスカート部下端を肉厚
にすることによって、外蓋剥離時の指の掛かりを良くし
剥離を容易にする一方、その内周面が内蓋のスカート部
外周面と接するようにすることによって、スカート部同
士の密封性を高めると共に、一度使用後に外蓋を内蓋に
再蓋することができる。Since the outer lid is opened by pushing the lower edge of one side of the outer lid skirt upward with the finger, peeling starts from the outer peripheral side end of the top plate, and the start of peeling has the highest resistance. Therefore, in order to facilitate the peeling, it is desirable that the adhesion area at the edge of the top plate where the peeling starts is small. By making the outer peripheral part of the bonding area zigzag, peeling starts from the tip of the zigzag, that is, the point first, so the initial peeling resistance is less than in the case of simply ringing, and after that the zigzag annular bonding area is formed. The peeling resistance is small because the peeling is performed by partially crossing. On the other hand, by forming the bonding area in a zigzag annular shape, the area of the bonding area is increased as compared with the case where it is simply ring-shaped, and the sealing property is further enhanced.
Moreover, if the inner endless adhesive area is provided separately from the outer adhesive area, even if the outer adhesive area is destroyed and dust, water, germs, etc. enter, it will be blocked by the inner adhesive area and the rubber surface of the inner plug will be blocked. Can be prevented from being contaminated. In other words, the composite lid of the present invention is doubly protected by the double endless adhesive area, has excellent sealing property, and by providing the double endless adhesive area, the outer endless adhesive area is protected. It can be formed in a narrower width, has excellent releasability in combination with the zigzag shape, and can satisfy the contradictory requirements of the sealing property and the releasability at the same time. Also, by making the lower end of the skirt of the outer lid thicker, it is easier to remove the outer lid and to facilitate peeling, while the inner peripheral surface is in contact with the outer peripheral surface of the skirt of the inner lid. By doing so, it is possible to enhance the sealing property between the skirt portions and to re-close the outer lid to the inner lid after once used.

【００１３】また、上記複合蓋の製造装置の成形型組立
体は、高周波誘導加熱コイルが直接雌型を構成している
ので、圧縮成形時は高周波加熱コイルに通電しないで通
常の成形型として使用し、成形ゾーンを過ぎると高周波
加熱コイルに通電することによって、型抜きをしないで
連続して内蓋の加熱ができ、しかも高周波加熱コイルで
加熱するので内蓋が急速に加熱される。それにより、内
蓋面に塗布されている接着性塗料層が溶融して接着性を
発揮する。この状態ではまだ型締状態であるので、接着
面にも加圧力が作用し、合成樹脂製の上蓋と金属製の内
蓋が確実に接着される。従って、本発明によれば、成形
に引き続きすぐに高周波加熱されて内蓋と外蓋の接着が
行われるので、同一ステーションで成形と加熱接着がで
き、従来のように成形後型抜きをして加熱ステーション
に移して加熱加圧して接着するものに比べて特段に、工
程時間が短縮されると共に、装置も一つの装置できる。
また、外蓋の成形後連続して加熱接着が行われるので、
エネルギー効率も良い。Further, since the high-frequency induction heating coil directly constitutes a female mold in the molding die assembly of the apparatus for manufacturing the composite lid, it is used as a normal molding die without energizing the high-frequency heating coil during compression molding. Then, after passing through the molding zone, by energizing the high-frequency heating coil, the inner lid can be continuously heated without die-cutting, and the high-frequency heating coil heats the inner lid rapidly. As a result, the adhesive coating layer applied to the inner lid surface is melted and exhibits adhesiveness. Since the mold is still clamped in this state, a pressing force also acts on the bonding surface, and the synthetic resin upper lid and the metal inner lid are securely bonded. Therefore, according to the present invention, since the inner lid and the outer lid are bonded immediately after molding by high-frequency heating, molding and heat bonding can be performed at the same station, and die cutting after molding is performed as in the conventional method. Compared with the case of transferring to a heating station and heating and pressurizing and adhering, the process time is particularly shortened, and one device can be used.
Also, since heat bonding is performed continuously after molding the outer lid,
It is also energy efficient.

【００１４】[0014]

【実施例】以下、本発明の実施例を図面に基づいて詳細
に説明する。図１及び図２は、本発明の複合蓋の一実施
例を示している。本複合蓋１は、金属製の内蓋２と合成
樹脂製の外蓋１０とからなっている。内蓋２は、アルミ
ニューム薄板のような金属板からプレス成形され、頂板
部３とその周囲から垂下したスカート部４とを有し、頂
板部３の中央部には開口部５が形成されている。外蓋１
０は、内蓋頂板部３の上面を覆う大径の頂板部１１と、
内蓋スカート部の上部外周に位置する短いスカート部１
２と、開口部５の内周縁を覆う顎部１３とを有してい
る。さらに該顎部１３から内蓋開口部の裏面周囲に放射
状に複数個（図示の実施例では６個）突出して内蓋の裏
面に接着する係合爪片１４を有している。該係合爪片１
４は、外蓋剥離時に基部から破断するように薄く形成さ
れ、開口部周辺での内蓋と外蓋の係合性を高める機能を
果たすと共に、外蓋剥離時の抵抗感があり、且つ係合爪
片の基部から破断してその破断片が内蓋の内面に残って
内蓋が剥離されたことが判り、ピルファブルーフ機能も
果たしている。前記外蓋の短いスカート部１２は、図示
のようにその下端部が肉厚に形成されてその内周面が内
蓋２のスカート部１２の外周面に接している。外蓋１０
のスカート部下端を肉厚にすることによって、外蓋剥離
時の指の掛かりを良くし剥離を容易にする。一方、その
内周面が内蓋のスカート部外周面と接することによっ
て、スカート部同士の密封性を高めると共に、薬液を例
えば２度に分けて使用する場合、一度使用後に外蓋を内
蓋に再蓋することができる。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2 show an embodiment of the composite lid of the present invention. The composite lid 1 includes an inner lid 2 made of metal and an outer lid 10 made of synthetic resin. The inner lid 2 is press-molded from a metal plate such as an aluminum thin plate, has a top plate portion 3 and a skirt portion 4 hanging down from the periphery thereof, and an opening 5 is formed in the central portion of the top plate portion 3. There is. Outer lid 1
0 is a large-diameter top plate portion 11 that covers the upper surface of the inner lid top plate portion 3,
Short skirt 1 located on the outer periphery of the upper skirt of the inner lid
2 and a jaw 13 that covers the inner peripheral edge of the opening 5. Further, a plurality of (six in the illustrated embodiment) radially projecting from the jaw portion 13 around the back surface of the inner lid opening portion, there are engaging claw pieces 14 bonded to the back surface of the inner lid. The engaging claw piece 1
4 is thinly formed so as to be broken from the base portion when the outer lid is peeled off, has a function of enhancing the engagement between the inner lid and the outer lid around the opening, and has a resistance when the outer lid is peeled off. It was revealed that the inner lid was peeled off by breaking from the base of the artificial nail piece and the broken pieces remained on the inner surface of the inner lid, which also fulfills the Pilfa Bruch function. The short skirt portion 12 of the outer lid is formed with a thick lower end portion as shown in the drawing, and its inner peripheral surface is in contact with the outer peripheral surface of the skirt portion 12 of the inner lid 2. Outer lid 10
By making the lower end of the skirt portion thick, the fingers are easily hooked when the outer lid is peeled off and the peeling is facilitated. On the other hand, the inner peripheral surface is in contact with the outer peripheral surface of the skirt portion of the inner lid to enhance the sealing property between the skirt portions, and when the chemical solution is used, for example, twice, the outer lid is used as the inner lid after the use. Can be recapped.

【００１５】内蓋２の頂板部には、図３に示すような、
接着性塗料によりジグザグ環状の外側無端接着域１５
と、該外側接着域よりも前記開口部側に離間して少なく
とも接着域外周縁が周方向に沿って無端のジグザク状に
なっている内側無端接着域１６との径方向に離間した二
重の無端接着域が形成され、内蓋外面の該無端接着域以
外の他の領域は非接着又は弱接着域１７となっており、
前記二重の無端接着域１５、１６を介して前記内蓋と前
記外蓋が剥離可能に接着されている。図３の（ａ）
（ｂ）は、上記無端接着域のパターンの例を示し、同図
（ａ）では外側接着域と内側接着域のジグザグが放射状
に同じ位相になっているが、（ｂ）では互いに半ピッチ
位相がずれており、外側接着域のジグザグの谷と内側接
着域の山が同一放射線上に位置するようになっている。
また、本実施例では、外蓋の裏面にも接着性塗料が塗布
されている。On the top plate of the inner lid 2, as shown in FIG.
Zigzag annular outer endless adhesive area 15 with adhesive paint
And the inner endless adhesive zone 16 which is separated from the outer adhesive zone toward the opening side and has an endless zigzag shape at least in the outer peripheral edge of the adhesive zone in the radial direction. An adhesive area is formed, and the area other than the endless adhesive area on the outer surface of the inner lid is a non-adhesive or weak adhesive area 17,
The inner lid and the outer lid are releasably adhered to each other via the double endless adhesive regions 15 and 16. FIG. 3 (a)
(B) shows an example of the pattern of the endless adhesive area. In FIG. (A), the zigzag of the outer adhesive area and the inner adhesive area are radially in the same phase, but in (b) they are half-pitch phase with each other. Are offset so that the zigzag valleys of the outer adhesive zone and the peaks of the inner adhesive zone are located on the same radiation.
Further, in this embodiment, the adhesive coating is also applied to the back surface of the outer lid.

【００１６】本実施例では外蓋の製造工程において、予
め金属板の内外面に接着性塗料を塗布し、その上から打
ち抜き成形した場合の外蓋頂板部の前記二重の無端接着
域に相当する部分のみが露出して、他の部分は印刷され
るような印刷パターンを形成して、そのパターンに応じ
て接着力制御用のマスキングインキを用いて通常の印刷
方法、例えばオフセット印刷等により印刷することによ
り、無端接着域以外の部分をマスキングインキ層でマス
キングして前記の二重の無端接着域を形成している。こ
のようにして、金属板に予め印刷により無端接着域を形
成することは、成形後に無端接着域を形成するよりも特
段に効率が良く、また印刷によるので、無端接着域が複
雑な形状であっても正確に且つ容易にできる。なお、こ
の実施例では、接着性塗料が塗布された上面にマスキン
グインキを印刷してあるが、最初に金属板にマスキング
インキで印刷後に、その上面全体に接着性塗料を塗布し
ても同様なマスキング効果が得られることは、いうまで
もない。また、場合によっては、接着域のみに接着性塗
料を塗布しても良い。In this embodiment, in the manufacturing process of the outer lid, it corresponds to the double endless adhesive area of the outer lid top plate portion when the adhesive paint is applied on the inner and outer surfaces of the metal plate in advance and the die is punched from the top. Form a printing pattern such that only the part to be exposed is exposed and the other part is printed, and the masking ink for controlling the adhesive force is used in accordance with the pattern to perform printing by a normal printing method, for example, offset printing. By doing so, the portion other than the endless adhesive area is masked with the masking ink layer to form the double endless adhesive area. In this way, forming the endless adhesive zone on the metal plate by printing in advance is much more efficient than forming the endless adhesive zone after molding, and since printing is performed, the endless adhesive zone has a complicated shape. However, it can be done accurately and easily. In this example, the masking ink is printed on the upper surface coated with the adhesive coating, but the same effect can be obtained by first printing the masking ink on the metal plate and then coating the entire upper surface with the adhesive coating. It goes without saying that a masking effect can be obtained. In some cases, the adhesive paint may be applied only to the adhesive area.

【００１７】無端接着域を前記形態に形成したのは、次
の理由による。外蓋は、外蓋スカート壁の片側下端縁を
指で上側に押し上げるとにより開けるため、外蓋と内蓋
の剥離は内蓋頂板の押し上げた方の端部側より始まる
が、端部は力のモーメントが小さいため最初が最も抵抗
が大きく、剥離が進むに従って剥離点に大きな力が作用
することになり、剥離が容易になる。そのため、剥離抵
抗を少なくするためには、剥離が始まる最初の個所は接
着面積が少ないのが望ましい。外側無端接着域１５をジ
グザグ環状にすることによって、図３に仮想線ａ、ｂ、
ｃで示すように順次剥離が進むと、最初に剥離が始まる
ａ線上ではジグザグの先端ｐ点のみが接着しているから
剥離が点から始まるので、剥離抵抗が少ない。そしてそ
の後も例えばｂ線まで進んでも、接着部はｂ線がジグザ
グ環状を横切る断続的な線分の位置のみであるから、単
にリング状にした場合よりも剥離抵抗が少ない。反面、
接着域をジグザグ帯状にすることによって、接着域の総
面積は同じ幅の単にリング状にする場合と比べて増大す
るので、密封性が一段と高くなる。The reason why the endless adhesive region is formed in the above-mentioned form is as follows. Since the outer lid is opened by pushing the lower edge of one side of the outer lid skirt wall upward with your finger, the peeling of the outer lid and the inner lid begins from the end side of the inner lid top plate that has been pushed up, but the end is a force. Since the moment of is small, the resistance is largest at the beginning, and as the peeling progresses, a large force acts on the peeling point, which facilitates the peeling. Therefore, in order to reduce the peeling resistance, it is desirable that the bonding area is small at the beginning of peeling. By forming the outer endless adhesive zone 15 into a zigzag annular shape, imaginary lines a, b, and
When the peeling progresses in sequence as indicated by c, peeling starts from the point because only the tip p point of the zigzag is adhered on the line a where peeling first starts, so the peeling resistance is small. Then, even after that, for example, even when proceeding to the line b, the peeling resistance is smaller than that in the case of simply forming a ring, because the bonding portion is only the position of the intermittent line segment where the line b crosses the zigzag ring. On the other hand,
By making the bonding area zigzag, the total area of the bonding area is increased as compared with the case where the bonding area is simply ring-shaped, so that the sealing property is further enhanced.

【００１８】さらに、内側無端接着域１６は、接着域外
周縁をジグザグ状に形成することは上記理由によるもの
であり、その接着域内周は本実施例の場合は開口部５ま
で達して開口部の全周が接着するようにしてあるが、剥
離が開口部に達するときは、外蓋の剥離がかなり進んで
いるので、本実施例のように開口部全周が接着していて
も剥離抵抗は少ない。また、開口部全周囲を実施例のよ
うに接着域にすることによって、例え外側無端接着域が
破壊されてゴミや水、雑菌等が侵入してきても、内側接
着域で阻止され、中栓のゴム面が汚染されことを防ぐこ
とができる。Further, the inner endless adhesive region 16 has the outer peripheral edge of the adhesive region formed in a zigzag shape for the above reason, and the inner periphery of the adhesive region reaches the opening 5 in the case of the present embodiment. Although the entire circumference is bonded, when the peeling reaches the opening, the peeling of the outer lid has progressed considerably, so even if the entire circumference of the opening is bonded as in this example, the peeling resistance is Few. In addition, by making the entire circumference of the opening a bonding area as in the example, even if the outer endless bonding area is destroyed and dust, water, various bacteria, etc. enter, it is blocked by the inner bonding area and It is possible to prevent the rubber surface from being contaminated.

【００１９】前記接着性塗料としては、金属との密着性
と耐腐食性とに優れたものが好ましく、熱硬化性樹脂塗
料或いは熱可塑性樹脂塗料の単独又は２種以上の組合せ
でも良く、例えば、エポキシ−フェノール系塗料のよう
に、エポキシ樹脂成分とこれに対する硬化剤樹脂成分と
からなる塗料等が好適である。また、上記の接着性塗料
で金属と合成樹脂との間に剥離性接着が得られない場合
は、この塗料中に凝集破壊性密着剤を含有させて使用す
るのが良い。The adhesive coating is preferably one having excellent adhesion to metals and excellent corrosion resistance, and may be a thermosetting resin coating or a thermoplastic resin coating alone or in combination of two or more thereof. A paint or the like composed of an epoxy resin component and a curing agent resin component therefor, such as an epoxy-phenolic paint, is suitable. Further, in the case where peelable adhesion between a metal and a synthetic resin cannot be obtained by the above adhesive coating, it is preferable to use a cohesive failure adhesive in the coating.

【００２０】凝集破壊性密着剤としては、例えば、
（１）合成パラフイン、石油系ワックス、ペトロラタム
等の脂肪族炭化水素系、（２）脂肪族、脂肪族アルコー
ル、（３）ポリグリコール、（４）アマイド、アミン、
（５）一価、多価アルコールの脂肪酸エステル、（６）
トリグリセライド、ワックス、（７）高級脂肪酸のアル
カリ金属、アルカリ度類金属、亜鉛及びアルミニューム
の塩（金属石鹸）、（８）低分子量オレフィン樹脂等が
使用できる。この凝集破壊性密着剤は、塗料樹脂固形分
当り０．０２〜５重量％、特に０．１〜２重量％の範囲
が良く、塗料中に配合された凝集破壊性密着剤は、塗料
の焼付け乃至乾燥時に塗膜表面に浮上し、塗膜と合成樹
脂とを凝集破壊可能に密着させる作用をする。なお、前
記外蓋がオレフィン系樹脂からなる場合には、上記塗料
中に接着性促進成分として変性オレフィン樹脂を配合し
て、密着性の程度を調整することができる。その場合、
凝集破壊性密着剤と変性オレフィン樹脂との割合は、
１：２〜１：３００、特に１：４〜１：２００の重量比
で用いることが好ましい。Examples of the cohesive breaking adhesive include, for example,
(1) Synthetic paraffin, petroleum wax, aliphatic hydrocarbons such as petrolatum, (2) aliphatic, aliphatic alcohol, (3) polyglycol, (4) amide, amine,
(5) Fatty acid ester of monohydric or polyhydric alcohol, (6)
Triglyceride, wax, (7) alkali metal of higher fatty acid, alkaline earth metal, zinc and aluminum salt (metal soap), (8) low molecular weight olefin resin and the like can be used. This cohesive failure adhesive is preferably in the range of 0.02 to 5% by weight, especially 0.1 to 2% by weight, based on the solid content of the coating resin, and the cohesive failure adhesive compounded in the coating is the baking of the coating. Also, it acts to float on the surface of the coating film during drying and to bring the coating film and the synthetic resin into close contact with each other in a cohesive and breakable manner. When the outer lid is made of an olefin resin, the degree of adhesion can be adjusted by blending a modified olefin resin as an adhesion promoting component in the paint. In that case,
The ratio of the cohesive failure adhesive and the modified olefin resin is
It is preferred to use in a weight ratio of 1: 2 to 1: 300, especially 1: 4 to 1: 200.

【００２１】前記接着力制御用のマスキングインキは、
凝集破壊性密着剤含有接着性塗料層に作用して、合成樹
脂外蓋と外接着性塗料層との間の接着力を非接着性乃至
弱接着性に低下させるものである。該マスキングインキ
としては、酸素の存在下に酸素を捕捉し、樹脂状の固体
を成形し得る変性可能な樹脂と、これらの樹脂に必要に
応じて適当な溶剤、顔料、染料その他のドライヤー（例
えば、ナフテン酸コバルドなど）、熱安定剤等を加えて
無色又は青色のインキを調製したものを用いることがで
きる。なお、変性可能な樹脂としては、例えばロジンと
その誘導体等、乾性油又は乾性油脂肪酸と相溶性乃至化
学反応性を持つ任意の熱可塑性又は熱硬化性の樹脂が使
用できる。好適には、乾性油又は乾性油脂肪酸で変性さ
れたアルキッド樹脂、又はエポキシ樹脂等を挙げること
ができる。The masking ink for controlling the adhesive strength is
It acts on the cohesive failure adhesive-containing adhesive coating layer to reduce the adhesive force between the synthetic resin outer lid and the external adhesive coating layer to non-adhesive or weakly adhesive. Examples of the masking ink include a modifiable resin capable of capturing oxygen in the presence of oxygen to form a resinous solid, and a suitable solvent, pigment, dye or other drier for these resins as necessary (for example, , Naphthenic acid kovaldo, etc.), a heat stabilizer or the like is added to prepare a colorless or blue ink. As the modifiable resin, for example, any thermoplastic or thermosetting resin having compatibility or chemical reactivity with the drying oil or the drying oil fatty acid, such as rosin and its derivatives, can be used. Preferable examples include alkyd resins modified with a drying oil or a drying oil fatty acid, and epoxy resins.

【００２２】前記実施例の複合蓋では、内蓋と外蓋の係
合強度を高めるため及びピルファープルーフ性を持たせ
るために、外蓋に係合爪片を設けてあるが、係合爪片を
設けなくても本発明の複合蓋では内蓋と外蓋の係合は前
記のように接着性塗料によって十分に維持することがで
きるので、図４に示す実施例のように係合爪片は必ずし
も設けなくても良い。図４の実施例において、２０が複
合蓋を示し、アルミニューム薄板等の金属薄板で成形さ
れた内蓋２１と、該内蓋の上面に合成樹脂により直接成
形された外蓋２２からなる。前記実施例と同様に内蓋２
１の頂壁２３には開口部２４が形成され、外蓋２２の短
いスカート部２５の下端部は肉厚に形成されているが、
上蓋の樹脂は単に内蓋の開口部内部を満たしているだけ
であり、内蓋裏面と係合する係合爪片を有していない。
それにより、外蓋剥離時における係合爪片を破断する必
要がなく、その分剥離抵抗が少なく剥離が容易となる。In the composite lid of the above embodiment, the outer lid is provided with engaging claw pieces in order to increase the engagement strength between the inner lid and the outer lid and to provide the pill fur proof property. In the composite lid of the present invention, the engagement between the inner lid and the outer lid can be sufficiently maintained by the adhesive paint as described above without providing a piece, so that the engaging pawl as in the embodiment shown in FIG. The piece does not necessarily have to be provided. In the embodiment shown in FIG. 4, reference numeral 20 denotes a composite lid, which comprises an inner lid 21 formed of a metal thin plate such as an aluminum thin plate, and an outer lid 22 formed directly on the upper surface of the inner lid by a synthetic resin. Inner lid 2 as in the previous embodiment
Although the opening 24 is formed in the top wall 23 of No. 1 and the lower end of the short skirt portion 25 of the outer lid 22 is formed thick,
The resin of the upper lid merely fills the inside of the opening of the inner lid, and does not have engaging claw pieces that engage with the back surface of the inner lid.
Accordingly, it is not necessary to break the engaging claw pieces when the outer lid is peeled off, and the peeling resistance is correspondingly small and peeling is facilitated.

【００２３】次に、上記蓋製造装置の実施例を図５〜図
８に基づいて説明する。本実施例の蓋製造装置は、本体
ローター３０（図６）に複数（図の実施例では１６個）
の成形型組立体３１が配置されており、本体ローター３
０が回転することによって成形型組立体３１が、図５に
示すように、内蓋供給ゾーンＡ、溶融樹脂投入ゾーン
Ｂ、成形ゾーンＣ、高周波加熱ゾーンＤ、冷却ゾーン
Ｅ、型開き取出ゾーンＦを順次循環するようになってい
る。図６において、３２は溶融樹脂投入ゾーンＢの側方
に配置された樹脂押出機であり、ホッパー３３に投入さ
れた樹脂原料を加熱して溶融状態で押し出し、ロータリ
ーカッター３４によって所定量づつ切断し、溶融樹脂投
入ゾーンＢに到達する成形型組立体３１に供給する。な
お、３５は樹脂押出機のスクリュー駆動用モータであ
り、３６は樹脂押出機用の走行レールである。Next, an embodiment of the lid manufacturing apparatus will be described with reference to FIGS. The lid manufacturing apparatus of this embodiment has a plurality (16 in the illustrated embodiment) of the main body rotor 30 (FIG. 6).
The molding die assembly 31 of FIG.
When 0 is rotated, the molding die assembly 31 causes the inner lid supply zone A, the molten resin feeding zone B, the molding zone C, the high frequency heating zone D, the cooling zone E, and the mold opening / unloading zone F as shown in FIG. Are cycled in sequence. In FIG. 6, reference numeral 32 denotes a resin extruder disposed on the side of the molten resin feeding zone B, which heats the resin raw material fed into the hopper 33 to extrude it in a molten state, and cut it into a predetermined amount by the rotary cutter 34. Then, the molten resin is supplied to the mold assembly 31 reaching the zone B. Incidentally, 35 is a screw driving motor of the resin extruder, and 36 is a traveling rail for the resin extruder.

【００２４】成形型組立体３１は、雌型組立体４０と雄
型組立体５０とからなり、その要部が図８に示されてい
る。雌型組立体４０は、この装置の特に特徴的な部分で
あり、高周波誘導加熱コイル４２が直接雌型の一部を構
成し、成形後直ぐに高周波加熱ができるようになってい
る。高周波誘導加熱コイル４２は、銅材からなり内部に
冷却水通路４３が形成され、中心部には磁束を集めるた
めのフェライトで形成された心材４４が嵌合されてい
る。高周波誘導加熱コイル４２の下部は外蓋成形用の雌
型キャビティとなる型凹部が形成され、該型凹部にセラ
ミックスで形成された雌型面部材４５が嵌合されてい
る。該雌型面部材４５は、高周波誘導加熱コイル及びフ
ェライトの下面に接着剤により接着されて保持されて一
体化されおり、薄く形成しても十分に成形時の圧力に耐
えることができる。４６は、高周波誘導加熱コイルの冷
却水通路４３に通じる冷却水配管の銅パイプであり、４
７は銅で形成された導板である。該導板４７は、成形型
組立体が図５に示す高周波加熱ゾーンＤを通過する間だ
け、外部に設けられた高周波発信器６０と電気的に導通
するようになっている。The molding die assembly 31 comprises a female die assembly 40 and a male die assembly 50, the essential parts of which are shown in FIG. The female die assembly 40 is a particularly characteristic part of this apparatus, in which the high frequency induction heating coil 42 directly constitutes a part of the female die and is capable of high frequency heating immediately after molding. The high frequency induction heating coil 42 is made of a copper material, has a cooling water passage 43 formed therein, and a core material 44 made of ferrite for collecting magnetic flux is fitted in the central portion thereof. A lower part of the high-frequency induction heating coil 42 is formed with a mold concave portion which serves as a female mold cavity for molding the outer lid, and a female mold surface member 45 formed of ceramics is fitted into the mold concave portion. The female surface member 45 is adhered to and held by the lower surface of the high frequency induction heating coil and the ferrite with an adhesive so as to be integrated, and can sufficiently withstand the pressure during molding even when formed thin. Reference numeral 46 denotes a copper pipe as a cooling water pipe leading to the cooling water passage 43 of the high frequency induction heating coil.
7 is a conductive plate made of copper. The guide plate 47 is electrically connected to a high-frequency oscillator 60 provided outside only while the mold assembly passes through the high-frequency heating zone D shown in FIG.

【００２５】４８はセラミックスで形成されたボス部材
であり、該ボス部材を介して雌型組立体の上部可動部材
に連結され、雌型組立体全体が本体ローター３０の上部
フレーム及び下部フレーム間に設けられたロッドに沿っ
て上下動可能に支持され、カムによって所定のストロー
クで上下動して、型開き、型閉じができるようになって
いる。また、図６において、４９は緩衝用のスプリング
であり、型内に溶融樹脂量が規定量より多く投入された
場合等、型締め時に型に過大な荷重が作用した場合上型
が移動して安全を図るようになっている。なお、本実施
例では、上記のように雌型キャビティの型面部材を肉薄
のセラミックスで形成したが、高周波誘導加熱コイル４
２と心材４４との下面境界部の隙間を完全に塞ぎ、成形
時の圧力により境界部に樹脂が侵入しないように工夫す
れば、高周波誘導加熱コイル４２と心材４４の下面が直
接型面となるように両者で雌型を形成しても良い。Reference numeral 48 denotes a boss member made of ceramics, which is connected to the upper movable member of the female mold assembly through the boss member, and the entire female mold assembly is provided between the upper frame and the lower frame of the main body rotor 30. It is supported so as to be able to move up and down along a provided rod, and can be moved up and down with a predetermined stroke by a cam to open and close the mold. Further, in FIG. 6, reference numeral 49 denotes a buffer spring, which moves the upper mold when an excessive load is applied to the mold during mold clamping, such as when the molten resin amount is injected into the mold more than a specified amount. It is designed to be safe. In this embodiment, the mold surface member of the female mold cavity is made of thin ceramics as described above, but the high frequency induction heating coil 4 is used.
If the gap between the lower surface of the core 2 and the core material 44 is completely closed and the resin is prevented from entering the boundary due to the pressure during molding, the lower surface of the high frequency induction heating coil 42 and the core material 44 will be the direct mold surface. As described above, a female mold may be formed by both.

【００２６】雄型組立体５０は、頂部に前記内蓋が嵌合
するコア部材５１と左右に開閉することができる外側部
材５２とを有し、これらの部材で雄型を構成している。
これらの部材は、電気絶縁性の材料であるセラミックス
で形成され、コア部材５１の内部には、加熱及び冷却が
できるように加熱冷却機構５３が組み込まれている。コ
ア部材５１の頂面は、外蓋１０の顎部１３が形成される
ように、該顎部の内径に相当する半径を有する中央円部
分５４が、内蓋が載る円環部５５より内蓋の肉厚とほぼ
同じか若干高いくらい突出し、且つ前記円環部５５の内
周と前記中央円部５４との間にできる顎部成形溝５６の
底部には、等ピッチで６ケ所において円環部に浅く入り
組んで係合爪片成形部を形成している。以上のような構
成を有する雄型組立体５０は、雌型組立体４０と同様に
上下動可能に支持され、図示しないカムによって所定の
ストロークで上下動して、雌型組立体と協動して型開
き、型閉じができるようになっている。The male mold assembly 50 has a core member 51 into which the inner lid fits and an outer member 52 that can be opened and closed left and right, and these members form a male mold.
These members are made of ceramics, which is an electrically insulating material, and a heating / cooling mechanism 53 is incorporated inside the core member 51 so that heating and cooling can be performed. On the top surface of the core member 51, a central circular portion 54 having a radius corresponding to the inner diameter of the jaw is formed so that the jaw 13 of the outer lid 10 is formed. Of the jaw forming groove 56 formed between the inner circumference of the annular portion 55 and the central circular portion 54 and protruding at about the same thickness as or slightly higher than the thickness of The engaging claw piece forming part is formed by shallowly interlocking with the part. The male assembly 50 having the above-described structure is supported so as to be vertically movable like the female assembly 40, and is vertically moved by a predetermined stroke by a cam (not shown) to cooperate with the female assembly. The mold can be opened and closed.

【００２７】本実施例の複合蓋製造装置は、以上のよう
に構成され、該装置によって上記複合蓋は次のように製
造される。内蓋はプレスにより打ち抜き成形され、整列
フィーダによって上下を揃えられて適宜の搬送装置によ
って複合蓋製造装置の内蓋供給ゾーンの位置まで搬送さ
れて、該位置に到達する雄型組立体５０のコア部材５１
の頂部に嵌合するように供給される。該内蓋は、前述し
たように既に内面には接着性塗料が塗布され、外面には
頂板部の外側無端接着域及び内側無端接着域のみが接着
性塗料が露出し、他の部分はマスキングインキ層でマス
キングされて非接着乃至弱接着域となっている。該内蓋
が供給されるときは、成形型組立体３１は開いている状
態にあり、雄型組立体５０の外側部材５２もコア部材５
１から離れて両側に開いていて、金属内蓋２をコア部材
５１の頂部に嵌合させることができる。The composite lid manufacturing apparatus of this embodiment is constructed as described above, and the composite lid is manufactured by the apparatus as follows. The inner lid is stamped and formed by a press, the upper and lower sides are aligned by an aligning feeder, and the inner lid is conveyed to the position of the inner lid supply zone of the composite lid manufacturing apparatus by an appropriate conveying device, and reaches the position of the core of the male mold assembly 50. Member 51
Supplied to fit on the top of the. As described above, the inner lid is already coated with the adhesive paint, and the outer surface is exposed with the adhesive paint only in the outer endless adhesive region and the inner endless adhesive region of the top plate portion, and the other portion is masking ink. It is masked with layers to provide non-bonded or weakly bonded areas. When the inner lid is supplied, the mold assembly 31 is in an open state, and the outer member 52 of the male assembly 50 is also in the core member 5.
Opened on both sides apart from 1, the metal inner lid 2 can be fitted onto the top of the core member 51.

【００２８】次いで、成形型組立体３１は型が開いてい
る状態のまま樹脂投入ゾーンＢに移動し、該位置でロー
タリーカッター３４が所定のタイミングで押出機から押
し出された溶融樹脂を切断して内蓋２が嵌合している雄
型組立体のコア部材５１上に落下させる。溶融樹脂の型
内への樹脂の投入が終了し、成形ゾーンに移ると雌型組
立体４０が下降して型締めが行われ、内蓋２の上部を成
形片面の一部にして外蓋１０の成形がなされ、図１に示
すように内蓋上面に外蓋１０が一体に成形される。Next, the mold assembly 31 moves to the resin injection zone B with the mold open, and the rotary cutter 34 cuts the molten resin extruded from the extruder at a predetermined timing at this position. The inner lid 2 is dropped onto the core member 51 of the male assembly with which the inner lid 2 is fitted. When the injection of the molten resin into the mold is completed and the mold is moved to the molding zone, the female mold assembly 40 is lowered to perform mold clamping, and the upper portion of the inner lid 2 is made a part of one side of the molding to form the outer lid 10. The outer lid 10 is integrally formed on the upper surface of the inner lid as shown in FIG.

【００２９】次いで、成形型組立体３１が高周波加熱ゾ
ーンＤに到達すると、雌型組立体を構成する高周波誘導
加熱コイル４２が本体ローター外部に配置されている高
周波発信回路と導通し、内蓋２が急速に誘導加熱され
る。それにより、接着性塗料層が溶融して接着性を発揮
し、該接着性塗料層が外蓋に接する外側無端接着域１
５、内側無端接着域１６及び裏面と接する係合爪片接触
域において、合成樹脂製の上蓋と金属製の内蓋が接着す
る。この状態ではまだ型締状態であるので、接着面にも
加圧力が作用し、合成樹脂製の上蓋と金属製の内蓋が確
実に接着される。この高周波誘導加熱による接着は、本
体ローターが約６０°回転する間の短時間に行なうこと
ができる。高周波加熱ゾーンを過ぎて加圧冷却ゾーンＥ
に達するとコイル４２への通電が遮断され、加圧状態で
雄型組立体に冷媒が供給されて強制冷却が行われ、成形
された樹脂が固定される。十分固定されたあと、雌型組
立体が上昇し、型開きが行われ、形成された複合蓋が取
り出され、次の検査工程へ搬送される。以上のように、
この装置によれば本体ローターが約１回転する間に外蓋
の成形から接着まで高速ででき、従来と比べて非常に生
産性が高い。そして、上記装置によって得られた複合蓋
をレトルト殺菌後、外蓋を剥離して内蓋と外蓋の境界面
への液の浸透を検査したところ、液の浸透は全くなく密
封性は完全であった。Next, when the molding die assembly 31 reaches the high frequency heating zone D, the high frequency induction heating coil 42 constituting the female die assembly is electrically connected to the high frequency transmitting circuit arranged outside the main body rotor, and the inner lid 2 Is rapidly induction heated. As a result, the adhesive coating layer melts and exhibits adhesiveness, and the outer endless adhesive region 1 in which the adhesive coating layer contacts the outer lid 1
5, in the inner endless adhesive area 16 and the engaging claw piece contact area in contact with the back surface, the synthetic resin upper lid and the metal inner lid are bonded. Since the mold is still clamped in this state, a pressing force also acts on the bonding surface, and the synthetic resin upper lid and the metal inner lid are securely bonded. The bonding by the high frequency induction heating can be performed in a short time while the main body rotor rotates about 60 °. Pressurized cooling zone E past the high frequency heating zone
When the temperature reaches, the power supply to the coil 42 is cut off, the refrigerant is supplied to the male mold assembly in a pressurized state to perform the forced cooling, and the molded resin is fixed. After being sufficiently fixed, the female mold assembly is lifted, the mold is opened, and the formed composite lid is taken out and conveyed to the next inspection step. As mentioned above,
According to this device, the outer lid can be molded and bonded at high speed while the main body rotor makes one revolution, and the productivity is much higher than the conventional one. Then, after the composite lid obtained by the above apparatus was sterilized by retort, the outer lid was peeled off and the permeation of the liquid into the boundary surface between the inner lid and the outer lid was inspected. there were.

【００３０】[0030]

【発明の効果】本発明は次のような格別の効果を奏す
る。本発明の複合蓋は、接着域の外周縁をジグザグ状に
しているので、特に初期剥離抵抗が少なく、上蓋の剥離
が容易であると共に、接着域の面積が単にリング状にす
る場合と比べて増大し、密封性が一段と高く、剥離性と
密封性に優れている。また、二重の無端接着域を設ける
ことによって二重に防御され、外側の無端接着域をより
細幅に形成することができ、ジグザグ形状と相まって密
封性と剥離性に優れ、相反する要求を同時に満たすこと
ができる。また、外蓋のスカート部下端を肉厚にするこ
とによって、外蓋剥離時の指の掛かりを良くし剥離を容
易にする一方、その内周面が内蓋のスカート部外周面と
接するようにすることによって、スカート部同士の密封
性を高めると共に、一度使用後に外蓋を内蓋に再蓋して
保護することができる。The present invention has the following special effects. Since the composite lid of the present invention has a zigzag outer peripheral edge, the initial peeling resistance is particularly small, the upper lid is easily peeled, and the area of the adhesive zone is simpler than that in the ring shape. It has increased, the sealing property is much higher, and the peeling property and the sealing property are excellent. In addition, double protection is provided by providing double endless adhesive area, the outer endless adhesive area can be formed in a narrower width, and in combination with the zigzag shape, it is excellent in sealing property and peeling property, and conflicting requirements are met. Can be satisfied at the same time. Also, by making the lower end of the skirt of the outer lid thicker, it is easier to remove the outer lid and to facilitate peeling, while the inner peripheral surface is in contact with the outer peripheral surface of the skirt of the inner lid. By doing so, it is possible to enhance the sealing property between the skirt portions and to protect the outer lid by re-closing it with the inner lid after use once.

【００３１】また、本発明の複合蓋の製造方法及び製造
装置は、高周波誘導加熱コイルが直接雌型を構成してい
るので、成形に引き続きすぐに高周波加熱されて内蓋と
外蓋の接着が行われ、同一ステーションで成形と加熱接
着ができる。従って、従来のように成形後型抜きをして
加熱ステーションに移して加熱加圧して接着するものに
比べて特段に、工程時間が短縮されると共に、装置も一
つの装置でできる。また、外蓋の成形後連続して加熱接
着が行われるので、エネルギー効率も良い。Further, in the method and apparatus for manufacturing the composite lid of the present invention, since the high frequency induction heating coil directly constitutes the female mold, the high frequency heating is performed immediately after the molding to bond the inner lid and the outer lid. It is done and can be molded and heat bonded at the same station. Therefore, as compared with the conventional method in which a die is removed after molding, and the die is moved to a heating station and heated and pressed for adhesion, the process time is particularly shortened and the apparatus can be formed by one apparatus. Further, since the heat bonding is continuously performed after the outer lid is molded, the energy efficiency is good.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の実施例にかかる複合蓋の縦断面図であ
る。FIG. 1 is a vertical cross-sectional view of a composite lid according to an embodiment of the present invention.

【図２】図１の複合蓋の底面図である。2 is a bottom view of the composite lid of FIG. 1. FIG.

【図３】内蓋頂板部のマスキングインキ層の塗布域と未
塗布域（接着域）のパターン例を示す平面図である。FIG. 3 is a plan view showing a pattern example of a coated area and a non-coated area (adhesive area) of a masking ink layer on a top plate portion of an inner lid.

【図４】本発明の他の実施例にかかる複合蓋の縦断面図
である。FIG. 4 is a vertical cross-sectional view of a composite lid according to another embodiment of the present invention.

【図５】本発明の実施例に係る複合蓋製造装置の工程分
割図である。FIG. 5 is a process division view of the composite lid manufacturing apparatus according to the embodiment of the present invention.

【図６】本発明の実施例に係る複合蓋製造装置の側面図
である。FIG. 6 is a side view of the composite lid manufacturing apparatus according to the embodiment of the present invention.

【図７】図５の複合蓋製造装置の平面配置図である。FIG. 7 is a plan layout view of the composite lid manufacturing apparatus of FIG.

【図８】図５の複合蓋製造装置の成形型組立体の要部縦
断面概略図である。8 is a schematic vertical sectional view of an essential part of a mold assembly of the composite lid manufacturing apparatus of FIG.

【符号の説明】[Explanation of symbols]

１、２０ 複合蓋 ２、２１ 内蓋 ３、２３ 内蓋の頂板部 ４ 内蓋のスカー
ト部 ５、２４ 開口部 １０、２２ 外蓋 １１ 外蓋の頂板部 １２、２５ 外蓋
のスカート部 １３ 顎部 １４ 係合爪片 １５ 外側無端接着域 １６ 内側無端接
着域 １７ 非接着域又は弱接着域 ３０ 本体ロータ
ー ３１ 成形型組立体 ３２ 樹脂押出機 ４０ 雌型組立体 ４２ 高周波誘導
加熱コイル ４４ 心材 ４５ 雌型面部材 ５０ 雄型組立体 ５１ コア部材 ５２ 外側部材1, 20 Composite lid 2, 21 Inner lid 3, 23 Inner lid top plate 4 Inner lid skirt 5, 24 Opening 10, 22 Outer lid 11 Outer lid top plate 12, 25 Outer lid skirt 13 Jaw Part 14 Engagement claw piece 15 Outer endless adhesion area 16 Inner endless adhesion area 17 Non-adhesion area or weak adhesion area 30 Main body rotor 31 Mold assembly 32 Resin extruder 40 Female assembly 42 High frequency induction heating coil 44 Core material 45 Female Mold surface member 50 Male mold assembly 51 Core member 52 Outer member

Claims (8)

【特許請求の範囲】[Claims] 【請求項１】 中央部に開口部が形成されている頂板部
と該頂板部の周囲から垂下したスカート部とからなる金
属製の内蓋、該内蓋の頂板部上面を覆う頂板部と、内蓋
スカート部の上部外周に位置する短いスカート部とを備
えた剥離可能な合成樹脂製の外蓋とからなる金属と合成
樹脂の複合蓋において、前記内蓋の頂板部上面に接着性
塗料により、少なくとも外周部がジグザグ状になってい
る無端接着域が形成され、該無端接着域を介して前記内
蓋と前記外蓋が剥離可能に接着されていることを特徴と
する金属と合成樹脂の複合蓋。1. A metal inner lid comprising a top plate portion having an opening formed in a central portion and a skirt portion hanging down from the periphery of the top plate portion, and a top plate portion covering an upper surface of the top plate portion of the inner lid, A composite lid of metal and synthetic resin, comprising a peelable synthetic resin outer lid having a short skirt portion located on the upper outer periphery of the inner lid skirt portion, wherein an adhesive paint is applied to the upper surface of the top plate portion of the inner lid. , A metal and a synthetic resin, characterized in that at least an outer peripheral portion is formed into an endless adhesive region having a zigzag shape, and the inner lid and the outer lid are detachably adhered to each other through the endless adhesive region. Compound lid. 【請求項２】 前記無端接着域は、ジグザグ環状の外周
側無端接着域と、該外周側無端接着域よりも内蓋開口部
側に離間している内周側無端接着域との径方向に離間し
た少なくとも二重の無端接着域よりなる請求項１の金属
と合成樹脂の複合蓋。2. The endless adhesive zone is formed in a radial direction between a zigzag annular outer peripheral side endless adhesive zone and an inner peripheral side endless adhesive zone which is more distant to the inner lid opening side than the outer peripheral side endless adhesive zone. The composite lid of metal and synthetic resin according to claim 1, comprising at least double endless adhesive zones spaced apart. 【請求項３】 前記無端接着域が、前記内蓋の少なくと
も頂板部上面全面に塗布された接着性塗料層の上面又は
下面に前記無端接着域を除く他の部分に非接着性のマス
キングインキ層を設けることによって形成してなる請求
項１又は２の金属と合成樹脂の複合蓋。3. A masking ink layer which is non-adhesive on the upper surface or the lower surface of the adhesive coating layer applied to the entire upper surface of at least the top plate portion of the inner lid except the endless adhesive area. The composite lid of metal and synthetic resin according to claim 1 or 2, wherein the composite lid is formed by providing. 【請求項４】 前記接着性塗料が、凝集破壊性密着剤及
び変性オレフィン樹脂を含有する凝集破壊性溶着密着剤
含有塗料である請求項１、２又は３の金属と合成樹脂の
複合蓋。4. The composite lid of metal and synthetic resin according to claim 1, 2 or 3, wherein the adhesive coating is a coating containing a cohesive fracture-bonding adhesive and a modified olefin resin. 【請求項５】 前記外蓋のスカート部の下端が肉厚とな
って内蓋の外周面と接触している請求項１〜４のいずれ
かの金属と合成樹脂の複合蓋。5. The composite lid of metal and synthetic resin according to claim 1, wherein the lower end of the skirt portion of the outer lid is thick and is in contact with the outer peripheral surface of the inner lid. 【請求項６】 中央部に開口部が形成されている頂板部
と該頂板部の周囲から垂下したスカート部とからなる金
属製の内蓋、前記内蓋の頂板部上面を覆う頂板部と、内
蓋スカート部の上部外周に位置する短いスカート部とを
備えた剥離可能な合成樹脂製の外蓋とからなる金属と合
成樹脂の複合蓋の製造方法において、前記内蓋を雄型組
立体に保持して該内蓋の外面を成形型面の一部として前
記合成樹脂の外蓋を金属の前記内蓋上部に成形する工程
と、前記内蓋及び前記外蓋を成形型内で加圧保持したま
ま前記工程の直後に高周波誘導加熱により内蓋を加熱し
て該内蓋に塗布されている接着性塗料を溶融して前記内
蓋と前記外蓋を接着する工程、接着が終了した前記内蓋
と前記外蓋を成形型内で冷却固定する工程とからなるこ
とを特徴とする金属と合成樹脂の複合蓋の製造方法。6. An inner lid made of metal, which comprises a top plate portion having an opening formed in a central portion thereof and a skirt portion hanging down from the periphery of the top plate portion, and a top plate portion covering an upper surface of the top plate portion of the inner lid, In a method for manufacturing a composite lid of metal and synthetic resin, which comprises a peelable synthetic resin outer lid having a short skirt portion located on the upper outer periphery of the inner lid skirt portion, the inner lid is a male assembly. And holding the outer surface of the inner lid as a part of the molding die surface to form the outer lid of the synthetic resin on the upper portion of the metal inner lid, and pressurizing and holding the inner lid and the outer lid in the molding die. Immediately after the above step, the step of heating the inner lid by high-frequency induction heating to melt the adhesive coating applied to the inner lid to bond the inner lid and the outer lid, A metal comprising a lid and a step of cooling and fixing the outer lid in a mold. And method for manufacturing composite lid of synthetic resin. 【請求項７】 金属製の内蓋の上部に合成樹脂製の外蓋
を直接成形して金属と合成樹脂の複合蓋を製造する複合
蓋製造装置において、前記内蓋を頂面に嵌合支持するコ
ア部材を有する雄型組立体と、高周波誘導加熱コイル及
び該高周波誘導加熱コイルのコア部に嵌合された心材の
端面が直接又は間接的に雌型キャビティを形成している
雌型組立体とにより成形型組立体を構成していることを
特徴とする金属と合成樹脂の複合蓋製造装置。7. A composite lid manufacturing apparatus for manufacturing a composite lid of metal and synthetic resin by directly molding an outer lid made of synthetic resin on the upper part of an inner lid made of metal, and fitting and supporting the inner lid on the top surface. Male assembly having a core member, and a high-frequency induction heating coil, and a female assembly in which an end face of a core material fitted to the core portion of the high-frequency induction heating coil directly or indirectly forms a female cavity. An apparatus for manufacturing a composite lid of metal and synthetic resin, characterized in that a molding die assembly is constituted by 【請求項８】 前記雌型キャビティは、高周波誘導加熱
コイル及び該高周波誘導コイルのコア部に嵌合された心
材の端面に形成された凹部に嵌合固定されたセラミック
スの雌型面部材で形成された雌型面を有している請求項
７の複合蓋製造装置。8. The female mold cavity is formed of a high frequency induction heating coil and a female mold surface member of ceramics fitted and fixed in a recess formed in an end face of a core member fitted in a core portion of the high frequency induction coil. 8. The composite lid manufacturing apparatus according to claim 7, which has a formed female surface.
JP4244023A 1992-08-21 1992-08-21 Composite lid of metal and synthetic resin, method of manufacturing the same, and manufacturing apparatus Expired - Fee Related JP2629530B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4244023A JP2629530B2 (en) 1992-08-21 1992-08-21 Composite lid of metal and synthetic resin, method of manufacturing the same, and manufacturing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4244023A JP2629530B2 (en) 1992-08-21 1992-08-21 Composite lid of metal and synthetic resin, method of manufacturing the same, and manufacturing apparatus

Publications (2)

Publication Number Publication Date
JPH0672457A true JPH0672457A (en) 1994-03-15
JP2629530B2 JP2629530B2 (en) 1997-07-09

Family

ID=17112564

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2629530B2 (en)

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WO2023180055A1 (en) * 2022-03-22 2023-09-28 Top Cap Holding Gmbh Device and method for producing a can lid

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Publication number Priority date Publication date Assignee Title
WO2016024779A1 (en) * 2014-08-14 2016-02-18 이동훈 Cap-integrated tube container and production device therefor and production method therefor
KR20160020699A (en) * 2014-08-14 2016-02-24 이동훈 Apparatus for producing tube container with integrated cap
CN106536365A (en) * 2014-08-14 2017-03-22 李东勋 Cap-integrated tube container and production device therefor and production method therefor
WO2023180055A1 (en) * 2022-03-22 2023-09-28 Top Cap Holding Gmbh Device and method for producing a can lid

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