FR2338120A1 - Heated collar for fusion sealing thermoplastic bottle tops - for reliable closure without contaminating the contents - Google Patents

Heated collar for fusion sealing thermoplastic bottle tops - for reliable closure without contaminating the contents

Info

Publication number
FR2338120A1
FR2338120A1 FR7601037A FR7601037A FR2338120A1 FR 2338120 A1 FR2338120 A1 FR 2338120A1 FR 7601037 A FR7601037 A FR 7601037A FR 7601037 A FR7601037 A FR 7601037A FR 2338120 A1 FR2338120 A1 FR 2338120A1
Authority
FR
France
Prior art keywords
cylinder
heated
bottle
bore
bottle neck
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
FR7601037A
Other languages
French (fr)
Other versions
FR2338120B1 (en
Inventor
Robert Barlet
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.)
Etat Francais
Original Assignee
Etat Francais
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 Etat Francais filed Critical Etat Francais
Priority to FR7601037A priority Critical patent/FR2338120A1/en
Priority to IT2918776A priority patent/IT1114151B/en
Publication of FR2338120A1 publication Critical patent/FR2338120A1/en
Application granted granted Critical
Publication of FR2338120B1 publication Critical patent/FR2338120B1/fr
Granted 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
    • B29C66/003—Protecting areas of the parts to be joined from overheating
    • 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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/10—Closing
    • 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
    • B29C65/32—Induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/137—Beaded-edge joints or bead seals
    • 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
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B29C66/43121—Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/06—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using radiation, e.g. electro-magnetic waves, induction heating
    • 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
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"

Landscapes

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

Abstract

Appts. for heat sealing the tops of thermoplastic bottles comprises a heated hollow metal cylinder with a bore having a convergent entry sized so that the mouth of the entry is larger than the outside dia. of the bottle neck, but the bore is smaller. The cylinder is located on the bottle neck, heated to melt the adjacent bottle mouth, and loaded with a weight to cause the cylinder to descend until stopped by a collar at the base of the neck. The bore is narrow enough to cause the bottle neck to converge and fuse solid. Pref. the cylinder is of metal which is a good conductor e.g. bronze, and heated by a coaxial induction coil. Used for sealing containers required to withstand rough storage and long shelf life, e.g. agricultural chemicals. One application is sealing of polyethylene bottles contg. potash. The seal is more secure than threaded or snap fit closures. There is no risk of melt droplets being dislodged into the bottle contents, unlike use of hot probes to fuse the inner wall of the bottle neck to receive a welded plug.
FR7601037A 1976-01-16 1976-01-16 Heated collar for fusion sealing thermoplastic bottle tops - for reliable closure without contaminating the contents Granted FR2338120A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7601037A FR2338120A1 (en) 1976-01-16 1976-01-16 Heated collar for fusion sealing thermoplastic bottle tops - for reliable closure without contaminating the contents
IT2918776A IT1114151B (en) 1976-01-16 1976-11-10 PROCEDURE AND DEVICE FOR OBTAINING PACKAGES OF PLASTIC CONTAINERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7601037A FR2338120A1 (en) 1976-01-16 1976-01-16 Heated collar for fusion sealing thermoplastic bottle tops - for reliable closure without contaminating the contents

Publications (2)

Publication Number Publication Date
FR2338120A1 true FR2338120A1 (en) 1977-08-12
FR2338120B1 FR2338120B1 (en) 1978-10-13

Family

ID=9167988

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601037A Granted FR2338120A1 (en) 1976-01-16 1976-01-16 Heated collar for fusion sealing thermoplastic bottle tops - for reliable closure without contaminating the contents

Country Status (2)

Country Link
FR (1) FR2338120A1 (en)
IT (1) IT1114151B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427952A1 (en) * 1978-06-05 1980-01-04 Beckman Instruments Inc METHOD AND DEVICE FOR SEALING CENTRIFUGAL TUBES

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2146121A1 (en) * 1971-07-19 1973-03-02 Lagrandie Jean Plastic medical probes - formed by hf moulding
FR2270083A1 (en) * 1974-02-04 1975-12-05 Flax V Thermoplastic container prodn. by extruding tube onto mandrel - and deforming the tube inwardly above the mandrel to form a neck

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2146121A1 (en) * 1971-07-19 1973-03-02 Lagrandie Jean Plastic medical probes - formed by hf moulding
FR2270083A1 (en) * 1974-02-04 1975-12-05 Flax V Thermoplastic container prodn. by extruding tube onto mandrel - and deforming the tube inwardly above the mandrel to form a neck

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427952A1 (en) * 1978-06-05 1980-01-04 Beckman Instruments Inc METHOD AND DEVICE FOR SEALING CENTRIFUGAL TUBES

Also Published As

Publication number Publication date
FR2338120B1 (en) 1978-10-13
IT1114151B (en) 1986-01-27

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Legal Events

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ST Notification of lapse