KR20170043971A - Laminated Tube Welding equipment For Ultrasonic wave - Google Patents

Laminated Tube Welding equipment For Ultrasonic wave Download PDF

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Publication number
KR20170043971A
KR20170043971A KR1020150143725A KR20150143725A KR20170043971A KR 20170043971 A KR20170043971 A KR 20170043971A KR 1020150143725 A KR1020150143725 A KR 1020150143725A KR 20150143725 A KR20150143725 A KR 20150143725A KR 20170043971 A KR20170043971 A KR 20170043971A
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KR
South Korea
Prior art keywords
ultrasonic
bonding
heat
mold
heating
Prior art date
Application number
KR1020150143725A
Other languages
Korean (ko)
Inventor
정진만
Original Assignee
(주)인터팩
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Application filed by (주)인터팩 filed Critical (주)인터팩
Priority to KR1020150143725A priority Critical patent/KR20170043971A/en
Publication of KR20170043971A publication Critical patent/KR20170043971A/en

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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
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • 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
    • 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
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • 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
    • B29C66/7234—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 barrier layer
    • 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
    • B29C66/7234—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 barrier layer
    • B29C66/72341—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 barrier layer for gases
    • 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
    • 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
    • B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • 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
    • B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • 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
    • B29C66/814—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 design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—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 design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • 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
    • 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
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    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • 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
    • 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
    • B29C66/737—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 state of the material of the parts to be joined
    • B29C66/7371—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 state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73711—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 state of the material of the parts to be joined oriented or heat-shrinkable oriented
    • B29C66/73713—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 state of the material of the parts to be joined oriented or heat-shrinkable oriented bi-axially or multi-axially
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
    • B29C66/949—Measuring or controlling the joining process by measuring or controlling the time characterised by specific time values or ranges
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics

Abstract

The present invention discloses an apparatus for bonding a laminate tube for ultrasonic waves.
The ultrasonic laminate tube joining apparatus of the present invention is characterized in that a lamination sheet having a round bar for guiding a laminate sheet composed of a thermally adhesive layer of a thermoplastic resin upward and downward through a barrier layer into a cylindrical tube body shape, And an ultrasonic welder for contacting the outer surface of the overlapped portion of the tube body to induce internal heating by applying ultrasonic frictional heat, wherein the shaping shaft is arranged to generate heat along the inner surface of the mold body of the tube body And a heating unit which is supplied with electric power and generates heat to induce melting of the surface side heat-bonding layer of the mold-joined portion to form an external resin bonding film.
The apparatus for bonding an ultrasonic laminate tube according to the present invention configured as described above works simultaneously with heat generation of a heat-forming shaft having ultrasonic frictional heat and a heater element with respect to the overlapping portion as a superposed portion to form a cylindrical body, It is possible to form a uniform inner and outer resin bonding film, thereby greatly improving the bonding stability to the molded body portion of the tube body, thereby improving the reliability as a storage container and improving the appearance of the molded article and quality thereof There is a useful effect of increasing the product value of the product.
In addition, since the present invention ensures a stable bonding stability even when an excessive pressing force is not exerted on the crimping portion, it does not require a pressing tool of a conventional concave / convex pattern, And the degree of freedom of printing can be increased.

Description

TECHNICAL FIELD [0001] The present invention relates to a laminated tube bonding apparatus for an ultrasonic wave (Laminated Tube Welding Equipment for Ultrasonic wave)

The present invention relates to an ultrasonic laminate tube joining apparatus in which a laminated sheet base material obtained by laminating and laminating highly functional films is supplied and fused in a cylindrical shape, and more particularly, to a joining apparatus for an ultrasonic laminate tube joining apparatus for improving the structure of a molding shaft for guiding a laminate sheet, A laminated sheet for ultrasonic lamination which is formed by applying external heating to a laminated sheet joined by an internal heating by a time lag so as to improve the quality of a molded product by significantly improving the quality of bonding to the molded part while preventing defective fusion due to thermal interference To a bonding apparatus.

In general, flexible tubes are used for packing cosmetics, medicinal products, or fragrance-preserving products. The types of the flexible tubes are roughly classified into aluminum tubes and laminated tubes, which are largely formed of aluminum depending on materials.

The aluminum tube is used for packaging medicines or contents requiring chemical resistance. Normally, an aluminum ingot having a predetermined size is formed into a cylindrical shape by an impact compression method, and a sealing process and a printing process And the like), and the like.

The aluminum tube thus manufactured is formed of aluminum as a whole except for the cap, which can maintain a high degree of gas and moisture resistance. However, since the aluminum metal has a low restoring force, it is easily deformed and inconvenient to use. In the case of bending, there is a disadvantage that the bending portion is cut or broken and the contents are leaked out to adversely affect the preservation of the contents. In order to overcome these disadvantages, a laminate having high resilience has been developed while maintaining high dimensional stability.

The flexible tube made of the laminate is used as a paste for various toothpaste materials such as toothpaste, food, and ointment, and is usually manufactured by extrusion lamination to adhere a substrate to an adhesive resin to form a sheet A backing is cut into a sheet or a roll state and a finished tube is made through a printing process and a seal process for forming a cylinder and then a seal is made after the filling of the final contents It functions as such.

The sheet for forming the body in such a flexible tube is mainly composed of an aluminum gas barrier single-layer type in which an aluminum thin plate is used as a gas barrier layer and a plurality of polymer layers are stacked, and a material having high anisotropy such as ethylene vinyl alcohol (EVOH) And a plastic gas tank single layer type in which a plurality of polymers are laminated. That is, the body of a conventional flexible tube is composed of an inner and an outer heat-bonding layer and an inner barrier layer. In the inner barrier layer structure, an aluminum thin plate is laminated alone, and an aluminum thin plate is laminated with an aluminum thin plate and a high strength plastic having a high tensile strength and softening point Film is laminated with a reinforcing layer so as to prevent ultraviolet rays, prevent gas permeation, and prevent moisture permeation.

Wherein the tube is composed of a body having a body formed by laminating a laminate sheet in a cylindrically shaped state and forming a space for accommodating contents, and a head having an outlet connected to a part of the body which is opened at one side thereof, And filling the contents with the open portion and sealing the contents.

Fig. 1 is a front view of a laminate tube bonding apparatus according to the related art. In Fig. 1, a supply unit 100 (Fig. 1) is shown in which a laminate sheet is wound on a bobbin b and aligned and supplied through a plurality of rollers r And a heating unit (not shown) for heating the laminate sheet fed from the feeding unit 100 to form a cylindrical shape and thermally adhere to the mold-shaped forming shaft by applying heat to the mold- A pressing unit 300 which presses the molded body portion of the cylindrical body joined through the heating unit 200 so as to improve the bonding state and a take- Unit 400 shown in Fig.

On the other hand, the cylindrical body forming the contents filling space is usually formed by superimposing a laminate sheet having a thickness of 250 to 380 占 퐉 in an overlap section for forming a mold half, that is, a width of 1.5 to 3 mm, And then a high-frequency induction heating is used to press-melt and fuse at 190 to 220 ° C to form a mold-joined portion. For example, in order to obtain a bonding strength of a bonding strength of 0.3 kg or more in a state where the upper and lower overlap portions overlap with each other in a state of overlapping of 1.5 to 3.0 mm, the press-fit portion at the joint portion of the cylindrical body must be pressurized to a level of 3.0 kgf / , And keeping the compression rate at 20 ~ 30% level can prevent leakage and obtain a constant burst strength. In addition, the burst strength can be set to an ideal quality standard only when the head, which is made of polyethylene resin with a tube, is injection-molded and then measured by air pressure and ruptured at 3.5 to 5 bar.

As shown in FIG. 1, the method of bonding the laminated sheet to the cylindrical body may include a high-frequency induction heating method in which the thin aluminum plate is heated and fused, and the method of bonding the resinous film of the laminated sheet And in the case of the high-frequency induction heating method, the application range is limited by filling the contents after squeezing the contents. In addition, the aluminum foil, which is a metal layer, is heated, and the synthetic resin Since the method of bonding the tube body by melting and pressing the film, there is a disadvantage in that bonding is not possible when the metal layer is not used.

In order to solve such a problem, in recent years, an ultrasonic welder using ultrasonic vibration friction heat has been widely used. However, in the ultrasonic vibration frictional heating method, the resin film formation at the joining portion of the laminate sheet, There is a closed end where separation and cracking of the layer easily occurs.

For example, a sheet using an ethylene vinyl alcohol copolymer film as a barrier layer may not be able to form a resin film on the cut surface due to the fact that the softened portion of the sheet is released by vibration frictional heat and is not molecularly bonded to the inner and outer heat adhesive layers, There is a limit to the preservation and the reliability and merchantability as a storage container are greatly lowered.

In addition, in the conventional method of joining a body in a cylindrical shape, a pressing tool of a concave-convex pattern is used to apply a locally high pressing force in order to improve the bonding property to the mold- There is a problem that the appearance design of the product is deteriorated and printing on the mold part is not possible, thereby hindering the degree of freedom of printing and thus there is a limitation in increasing the merchantability.

Patent Registration No. 10-0974197, page 2, Claim 1, Patent No. 10-0890157, page 2, claim 5,

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a method of manufacturing a cylindrical tube body, And the resin on the boundary line is melted to form a rigid inner and outer resin bonding film, thereby enhancing the bonding stability to the mold-joined portion.

Further, since the inner and outer surfaces of the mold-clamping portion form a rigid inner and outer resin jointing film by heating, a good adhesion state is maintained without exerting an excessive pressing force, And it is an object of the present invention to provide an ultrasonic laminate tube joining apparatus which can improve the appearance quality and the degree of freedom of printing because it does not generate a concavo-convex shaping mark formed on the existing mold part.

Another object of the present invention is to provide an ultrasonic bonding apparatus for bonding an ultrasonic laminated tube which can improve the bonding strength of a molded part of a body to improve reliability and merchantability as a storage container.

In order to achieve the above object, the ultrasonic laminate tube joining apparatus according to the embodiment of the present invention is characterized in that the laminate sheet comprising a thermally adhesive layer made of a thermoplastic resin is guided upward and downward through a barrier layer in a cylindrical tube body shape And an ultrasonic fusing device provided on one side of the forming shaft of the round bar and contacting an outer surface of the overlapping mold part of the tube body to apply an ultrasonic frictional heat to induce internal heating to form an internal resin bonding film The molding shaft is further arranged to generate heat along the inner surface of the molded body portion of the tube body, and further includes a heat generating portion that generates heat by inducing the melting of the surface side heat-bonding layer of the mold, .

According to a preferred aspect of the present invention, the forming shaft has a mounting groove portion formed along a longitudinal direction on one surface of the mold-contacting portion.

According to another preferred aspect of the present invention, the heating portion is a heating bar provided with a heater wire which is heated by receiving power from the outside by forming a flat heat-generating surface in which the mold- And a heater controller for controlling the temperature of the heating rod to be 70 ° C. to 150 ° C. so that the heating time is 0.5 to 0.8 seconds longer than the operating time of the ultrasonic fusing device.

In another preferred aspect of the present invention, the heating bar may be formed by a dot pattern formed by grooves and protrusions for preventing slippage on a heating surface on which the mold- Is formed.

The apparatus for bonding an ultrasonic laminate tube according to the present invention simultaneously exerts the heat generated from the ultrasonic frictional heat and the heat-formed shaft having the heater element on the mold part which is the overlapped part for forming the cylindrical tube body, As the inside and the outside are melted and a uniform inner and outer resin bonding film is formed, it is expected that the bonding stability to the mold forming portion can be greatly improved.

Particularly, a simple structural modification in which a heating element is additionally provided on a forming shaft of a round bar for guiding the laminate sheet to a cylindrical shape greatly enhances the bonding stability to the tube fitting portion, thereby enhancing reliability as a storage container, There is a useful effect that the product value of the product can be increased by improving the product.

In addition, since the present invention ensures a stable bonding stability even when an excessive pressing force is not exerted on the mold-clamping portion, it does not require a pressing tool of a conventional concave-convex pattern, And the degree of freedom of printing can be increased.

Further, according to the present invention, since the inner resin bonding film and the outer resin bonding film are formed with a time difference between the ultrasonic fusing device as the internal heating element and the heat generating part as the external heating element, at the same time, There is an advantage that it is possible to block the mold and secure a stable bonding stability to the mold part.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

FIG. 1 is a schematic view for explaining a conventional high frequency induction heating type laminate tube bonding apparatus,
FIG. 2 is a view showing a configuration of a main part of an apparatus for bonding an ultrasonic laminate tube according to the present invention,
3 is a view for explaining bonding action of a tube body by the ultrasonic laminate tube bonding apparatus according to the present invention,
4 is a perspective view for explaining a configuration of a forming shaft and a heat generating unit in the ultrasonic laminate tube joining apparatus according to the present invention,
5 and 6 are perspective views showing a molding shaft to which a heat generating portion is applied in the ultrasonic laminate tube joining apparatus according to the present invention.

Hereinafter, an ultrasonic bonding apparatus according to the present invention will be described with reference to the accompanying drawings.

First, it should be noted that the same components or parts among the drawings are denoted by the same reference numerals as possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 2 is a view showing a configuration of a main part of an ultrasonic laminate tube joining apparatus according to the present invention.

The drawing shows a forming shaft 20 of a round bar for guiding the laminated sheet (s) in which the thermally adhesive layer (s2) made of a thermoplastic resin is disposed above and below the block layer s2 to have a cylindrical tube body shape, An ultrasonic welder 10 installed at one side of the shaping shaft 20 to contact the outer surface of the overlapping mold assembly of the tube body to induce internal heating by applying frictional heat to the ultrasonic wave, And a heating unit 30 that generates heat from the inside of the tube body to induce external heating.

3 is a view for explaining bonding action of the tube body by the ultrasonic laminate tube joining apparatus according to the present invention.

In the figure, a tube body is shown in which a flange portion which is a portion of a laminate sheet (s) superimposed by thermocompression in a state of being in a cylindrical shape is joined, and the flange portion is constituted of a laminate sheet (s) A top half portion sa contacting with the ultrasonic welder 10 for dissolving the thermal adhesive layer s2 and a heating portion 30 disposed over the bottom portion of the upper half portion sa and receiving heat from the outside to generate heat, And a lower mold half portion sb contacting the outer surface of the molding shaft 20 provided.

As the tube body is instantly heated by the frictional heat generated in the thermally adhesive layer constituting the contact surface where the foamed portions formed by the upper mold half portion sa and the lower mold half portion sb are in contact with each other by the ultrasonic friction heat of the ultrasonic fuser 10, At the same time, the upper and lower mold half portions sa and the thermally adhesive layer on the inner surface side of the upper mold half portion sa and the lower mold half portion sb, which constitute the mold half portion, are melted by the heat generating portion 30, There is shown an ultrasonic laminate tube bonding apparatus for improving the bonding stability by forming an outer resin bonding film so on the boundary line between the upper mold abutting portion sa and the lower mold abutting portion sb as the bonding film so is formed.

4 is a perspective view for explaining a configuration of a molding shaft and a heating unit in the ultrasonic laminate tube joining apparatus according to the present invention.

In the drawing, a heating unit (not shown) for inducing external heating of a mold body of a tube body to form an outer resin bonding film so on each of boundary lines of the upper mold half portion sa and the lower mold half portion sb The heat generating part 30 according to the present invention is assembled to the mounting groove 23 formed along the longitudinal direction on one side of the forming shaft 20 so as to be fitted into the mounting groove 23, And a heat generating rod 31 formed of a heater wire which generates heat by receiving power from the outside.

In the meantime, since it is important that the heat generating part 30 in the present invention generate heat at a temperature at which the laminated sheet (s) can be melted by external heating, the temperature of the heat generating rod (31) And a temperature sensor for measuring the temperature of the heating rod 31 may be additionally provided.

5 and 6 are perspective views showing a molding shaft to which a heat generating unit is applied in the ultrasonic laminate tube joining apparatus according to the present invention.

5 is a sectional view showing a state in which the non-slip portion 35 is formed on the heat generating surface 33 on which the molded body of the tube body is in contact, And a plurality of lines protruding along the width direction are formed at intervals in the width direction.

FIG. 6 shows a non-skid portion 35 having a dot pattern shape in which grooves and protrusions are formed at regular intervals. In addition, various shapes including grooves and protrusions can be applied to prevent slippage will be.

The construction of an ultrasonic laminate tube joining apparatus according to the present invention will be described with reference to the drawings.

First, in the ultrasonic laminate tube bonding apparatus of the present invention, a laminate sheet (s) composed of a thermally adhesive layer (s2) made of a thermoplastic resin up and down with a barrier layer (s2) A molding shaft 20 for guiding the tube to form a tube body and an outer surface of an overlapping mold part of the tube body provided on one side of the molding shaft 20 to act on frictional heat, An ultrasonic welder 10 for inducing internal heating; and a heat-bonding layer s2 which is integrally connected to the shaping shaft 20 and which is in contact with the inner surface of the mold- And a heating unit 30 for guiding the external resin bonding film so to be formed on the boundary line of the mold-joined portion.

The laminate sheet s is basically laminated with a thermally adhesive layer s2 made of a plastic resin above and below the barrier layer s2. The barrier layer s2 blocks gas, ultraviolet rays and light A synthetic resin material, a metal thin film layer or a metal vapor deposition layer having a function of biaxially stretching polyester (PET) or biaxially stretched polyamide (nylon) can be used as a synthetic resin material, and a synthetic resin material Or a surface layer is formed by coating or vapor deposition.

The heat-sealable layer (s2) is made of a thermoplastic resin such as a polyolefin-based resin or a polyethylene-based resin.

The molding shaft 20 has a mounting groove portion 23, which is a fitting groove for allowing the heat generating portion 30, which will be described later, to be assembled along the longitudinal direction, on one surface of the mold body 20 which forms the overlapping junction portion of the tube body, Is formed.

That is, in the present invention, the forming shaft 20 is provided in the shape of a round bar, and the laminated sheet (s) is wound around the outer periphery of the forming shaft 20 so that cooling water for preventing the temperature of the forming shaft 20 from rising A cooling water line 21 to be flowed is formed.

The ultrasonic welder 10 is implemented by a known technique. The ultrasonic welder 10 includes an ultrasonic transducer 11, a booster 13, and a tulip hone 15 in brief. The ultrasonic welder 10 converts a 220 V (110 V) 60/50 HZ power into an electrical energy of 20 KHZ (28,40,100 KHZ) through an oscillator and converts it into mechanical energy through a vibrator 11 to generate a booster 13 and the tulhom 15 to the laminate sheet s, momentary frictional heat is generated and dissolved in the bonding surface of the thermally adhesive layer s2 of the thermoplastic resin among the layers constituting the laminate sheet s Thus leading to strong molecular binding.

That is, as shown in FIG. 3, the ultrasonic friction heat of the ultrasonic welder 10 is generated by the internal heating due to the generation of frictional heat on the joining surface of the upper mold half sa and the lower mold half sb constituting the mold- An internal resin bonding film si is formed.

In summary, the ultrasonic welder 10 of the present invention is set to have a frictional heat induction time of about 0.2 to 0.5 seconds depending on the thickness of the laminated sheet (s), and the exothermic temperature is 170 to 190 deg. The ultrasonic friction heat of the ultrasonic welder 10 causes the laminated sheet s to be heated by the vibration of the thermal adhesive layer s2 located on the contact surface between the upper mold half sa and the lower mold half sb, The inner resin bonding film si is formed and joined.

The heat generating part 30 is an element having the main technical features of the present invention and has a shape corresponding to the fitting groove part 23 of the forming shaft 20 so that the mold body of the tube body can be surface- A heating bar 31 provided with a heater wire which generates heat by receiving power from the outside by forming a flat heating surface 33 so as to form a flat heating surface 33 and a control element 31 for maintaining the temperature of the heating bar 31 at 70 ° C to 150 ° C And a temperature sensor (not shown) for measuring the temperature of the heating rod 31 and applying a sensing signal to the heater controller.

The heating surface 33 is formed in a flat shape so that the upper and lower overlapping portions can be in surface contact for a pile-up bonding method (envelope bonding method) in which a portion of the laminate sheet s is overlapped.

The heater controller and the temperature sensing sensor may be implemented by a known technology, and thus a detailed description thereof will be omitted.

The heating unit 30 of the present invention is provided with a non-slippery portion 35 for suppressing the flow of the mold portion during friction heating with the ultrasonic welder 10 on the heating surface 33 on which the mold- .

That is, the heat-generating surface 33 is formed with a non-slip portion 35 at a portion corresponding to the overlapping portion of the laminate sheet s. The non-slip portion 35 is formed on the laminate sheet s, Thereby increasing the frictional force with the slip prevention member.

5, the non-slip prevention part 35 may be provided in various forms. In the present invention, on the heating surface 33 of the heating part 30, A plurality of line patterns extending in the width direction and a plurality of grooves and protrusions at regular intervals as shown in FIG. 6 have been proposed. However, the present invention is not limited thereto, A regular pattern or an irregular pattern composed of unidirectional straight grooves and protrusions or formed of grooves and protrusions may be applied.

The mold shaft 20 is provided with a mold shaft 20 for molding the laminated sheet s rolled around the molding shaft 20 by selectively separating or forming the mold shaft 20, The mold 17 is provided with a heating surface 33 of the molding shaft 20 exposed to the outside for fusion bonding using the ultrasonic welder 10 and may be applied by a known technique A detailed description thereof will be omitted.

The heat generating portion 30 having such a configuration is an element that externally heats the laminate sheet s, and the heat generating rod 31 at this time applies a heat transfer time for the laminate sheet s to the ultrasonic welder 10 It is preferable that the heat transfer time is designed to be longer than 0.5 second to 1 second compared to the heat transfer time.

That is, the ultrasonic welder 10 induces the ultrasonic friction heat to the laminate sheet s for about 0.2 to 0.5 seconds, and the heat temperature at this time is maintained at 170 to 190 ° C., 30 has a heater wire that generates heat by receiving power, so that the heat transfer rate is slower than that of the ultrasonic welder 10. Accordingly, the heating rod 31 is designed to have a heating time of about 0.5 to about 0.8 seconds at 70 ° C to 150 ° C on the basis of the operating time of the ultrasonic welder 10.

This is because the ultrasonic friction heat of the ultrasonic welder 10 which is an internal heating element for the laminate sheet s requires a friction heating time of 0.2 to 0.5 seconds and therefore the external heating is performed so as not to interfere with the ultrasonic friction heating time of the ultrasonic welder 10 The heat generating rod 31 of the heat generating part 30, which is an element of the heat generating part 30, takes a heat transfer time of about 0.5 to 1 second so that heat interference does not occur due to the mutual time difference. As a result, The inner resin bonding film si is formed by sequentially melting the resin on the bonding portion of the mold-joined portion by internal heating, and then the resin on the boundary line of the mold- So that the bonding stability with respect to the molded part can be greatly increased.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention. It is obvious to those who have knowledge. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: Ultrasonic fusion welding machine
20: forming axis
21: Cooling water line
23: mounting groove
30:
31:

Claims (3)

A molding shaft of a round bar for guiding a laminated sheet composed of a thermally adhesive layer made of a thermoplastic resin up and down to a cylindrical tube body shape with a barrier layer interposed therebetween and an outer surface of a superimposed mold part of the tube body, And an ultrasonic welder for applying an ultrasonic frictional heat to induce internal heating, the ultrasonic welder comprising:
Wherein the molding shaft is arranged to generate heat along the inner surface of the mold body of the tube body, the heat generating unit generating heat by receiving power and inducing melting of the surface side heat-bonding layer of the mold body to form an external resin bonding film;
And an ultrasonic bonding apparatus for bonding the ultrasonic laminated tube.
The method according to claim 1,
Wherein the shaping shaft has a mounting groove portion formed along a longitudinal direction on one surface of the mold-
Wherein the heating portion is formed by inserting the heating groove into the mounting groove portion to form a flat heating surface in which the mold fitting portion is in surface contact with the heating bar, The heater controller controlling the temperature to be 0.5 to 0.8 seconds longer than the operating time of the ultrasonic welder;
Wherein the ultrasonic bonding apparatus comprises an ultrasonic bonding apparatus. The apparatus as claimed in claim 2,
And a plurality of dot patterns formed by grooves and protrusions for preventing slippage or lines protruding along the longitudinal direction are formed on the heat generating surface on which the mold- Device.
KR1020150143725A 2015-10-14 2015-10-14 Laminated Tube Welding equipment For Ultrasonic wave KR20170043971A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102175856B1 (en) * 2020-03-05 2020-11-06 연지호 Polyethylene sheet and connecting rod fixing device and connecting device using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102175856B1 (en) * 2020-03-05 2020-11-06 연지호 Polyethylene sheet and connecting rod fixing device and connecting device using the same

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