FR2256014A1 - Heater for vacuum forming thermoplastics sheet - comprising narrow hot air jet applied transversely across moving sheet - Google Patents

Heater for vacuum forming thermoplastics sheet - comprising narrow hot air jet applied transversely across moving sheet

Info

Publication number
FR2256014A1
FR2256014A1 FR7440276A FR7440276A FR2256014A1 FR 2256014 A1 FR2256014 A1 FR 2256014A1 FR 7440276 A FR7440276 A FR 7440276A FR 7440276 A FR7440276 A FR 7440276A FR 2256014 A1 FR2256014 A1 FR 2256014A1
Authority
FR
France
Prior art keywords
sheet
heater
hot air
air jet
vacuum forming
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
FR7440276A
Other languages
French (fr)
Other versions
FR2256014B3 (en
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.)
Nagema VEB
Original Assignee
Nagema VEB
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 Nagema VEB filed Critical Nagema VEB
Publication of FR2256014A1 publication Critical patent/FR2256014A1/en
Application granted granted Critical
Publication of FR2256014B3 publication Critical patent/FR2256014B3/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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/42—Heating or cooling
    • B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
    • B29C51/424—Heating or cooling of preforms, specially adapted for thermoforming using a heated fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Thermoplastics sheet is vacuum formed by heating the sheet, before it is applied into the vaccum mould, by a narrow transverse line of heating applied across the sheet and advanced longitudinally relative to the sheet. A long narrow jet of gas is pref. heated and blown onto the sheet the sheet being moved past the jet.
FR7440276A 1973-12-27 1974-12-09 Heater for vacuum forming thermoplastics sheet - comprising narrow hot air jet applied transversely across moving sheet Granted FR2256014A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD175656A DD110796A1 (en) 1973-12-27 1973-12-27

Publications (2)

Publication Number Publication Date
FR2256014A1 true FR2256014A1 (en) 1975-07-25
FR2256014B3 FR2256014B3 (en) 1977-09-02

Family

ID=5494091

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440276A Granted FR2256014A1 (en) 1973-12-27 1974-12-09 Heater for vacuum forming thermoplastics sheet - comprising narrow hot air jet applied transversely across moving sheet

Country Status (6)

Country Link
CH (1) CH578925A5 (en)
DD (1) DD110796A1 (en)
DE (1) DE2445342A1 (en)
FR (1) FR2256014A1 (en)
NL (1) NL7413036A (en)
SE (1) SE406288B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442124A1 (en) * 1978-11-27 1980-06-20 Tecca Brief, high temp. superficial sterilisation of thermoplastic sheet - for short cycle treatment integrated with prodn. of thermo-formed and filled containers
FR2949207A1 (en) * 2009-08-24 2011-02-25 Essilor Int DEVICE FOR THERMOFORMING A PLASTIC FILM

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442124A1 (en) * 1978-11-27 1980-06-20 Tecca Brief, high temp. superficial sterilisation of thermoplastic sheet - for short cycle treatment integrated with prodn. of thermo-formed and filled containers
FR2949207A1 (en) * 2009-08-24 2011-02-25 Essilor Int DEVICE FOR THERMOFORMING A PLASTIC FILM
WO2011023879A3 (en) * 2009-08-24 2011-05-19 Essilor International (Compagnie Generale D'optique) Device for thermoforming a plastic film
CN102625745A (en) * 2009-08-24 2012-08-01 依视路国际集团（光学总公司） Device for thermoforming a plastic film
US9004895B2 (en) 2009-08-24 2015-04-14 Essilor International (Compagnie Generale D'optique) Device for thermoforming a plastic film
CN102625745B (en) * 2009-08-24 2015-07-22 依视路国际集团（光学总公司） Device for thermoforming a plastic film
US9694534B2 (en) 2009-08-24 2017-07-04 Essilor International (Compagnie Generale D'optique) Device for thermoforming a plastic film

Also Published As

Publication number Publication date
SE7414546L (en) 1975-06-30
CH578925A5 (en) 1976-08-31
DD110796A1 (en) 1975-01-12
DE2445342A1 (en) 1975-07-10
FR2256014B3 (en) 1977-09-02
NL7413036A (en) 1975-07-01
SE406288B (en) 1979-02-05

Similar Documents

Publication Publication Date Title
GR850025B (en)
JPS508728B1 (en)
GB1375471A (en)
FR2256014A1 (en) Heater for vacuum forming thermoplastics sheet - comprising narrow hot air jet applied transversely across moving sheet
JPS52103734A (en) High-frequency heater
ES426149A1 (en) Molding apparatus
GB1144757A (en) Apparatus and method for heat sealing cartons
SE8204998L (en) SET AND APPARATUS FOR PREPARING BIAXIALLY ORIENTED SUBSTANCES
GB1051398A (en)
ES339380A1 (en) Apparatus for spray cooling glass sheets
ES441450A1 (en) Manufacture of thin walled plastics material articles
FR2322710A1 (en) Embossed thermoplastic films with high mechanical strength - produced by indirect heating and immediately passing over cooled embossing roller
GB1525748A (en) Methods of producing garment sections from templates
FR2164455A1 (en) Heating glass sheets - prior to convex bending
ES372722A1 (en) Process for manufacturing hollow objects from laminated thermoplastics film material
GB1338324A (en) Process for thermal-forming biaxially stretched thermoplastic resin sheet
JPS5266884A (en) Process for forming film on base material
JPS53123477A (en) Surface treatment device of molded synthetic resin article
GB1034821A (en) Apparatus for sealing containers by means of a synthetic plastic film which is shrinkable under the action of heat
FR2311642A1 (en) Suction fed hopper for preheating injection moulding materials - using hot air drawn via the injection chamber
FR2147875A1 (en) Embossing thermoplastic sheets - with a roller during prodn
FR2122879A5 (en) Continuous drying of strip material - using air heated inside a distribution chamber
FR2237434A6 (en) Machine to form folded paper dishes for food - conveys blanks from magazine through coating, heating, forming stations
FR2299417A1 (en) Enamelling ferrous articles by local surface heating - using radiant heaters in a tunnel furnace
FR2101680A5 (en) Multiple mould for sheets - and sheet transfer mechanism