GB1019797A - Moulding thermoplastic sheet material - Google Patents

Moulding thermoplastic sheet material

Info

Publication number
GB1019797A
GB1019797A GB4623062A GB4623062A GB1019797A GB 1019797 A GB1019797 A GB 1019797A GB 4623062 A GB4623062 A GB 4623062A GB 4623062 A GB4623062 A GB 4623062A GB 1019797 A GB1019797 A GB 1019797A
Authority
GB
United Kingdom
Prior art keywords
sheet
heater
mould
vacuum
raised
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.)
Expired
Application number
GB4623062A
Inventor
Sidney Walter Fagence
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.)
ML Shelley and Partners Ltd
Original Assignee
ML Shelley and Partners 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 ML Shelley and Partners Ltd filed Critical ML Shelley and Partners Ltd
Priority to GB4623062A priority Critical patent/GB1019797A/en
Publication of GB1019797A publication Critical patent/GB1019797A/en
Expired 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
    • B29C51/18—Thermoforming apparatus
    • B29C51/20—Thermoforming apparatus having movable moulds or mould parts

Landscapes

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

Abstract

1,019,797. Vacuum moulding sheet materials. M. L. SHELLEY & PARTNERS Ltd. Feb. 7, 1964 [Dec. 7, 1962], No. 46230/62. Heading B5A. In a vacuum forming process a thermoplastic sheet 15, of, e.g., biaxially oriental polystyrene, polypropylene or polyethylene, is clamped between pivoted frame members 10, 11, heat softened by reciprocable heater 19 and then vacuum moulded by a piston operated mould 5. After the moulding operation the frame member 11 is raised to release the sheet and the mould is moved horizontally to the right, along rails 4, carried by table 3, by a piston 7, to a stripping station, a fresh region of the sheet being simultaneously drawn under the heater. Platform 3 is then lowered to free the formed sheet and the mould returned along rails 4 to its original position whence it is re-raised to initiate another cycle. In another embodiment (Fig. 3, not shown), the heater is vertically reciprocable and carries plungers of P.T.F.E. which enter the mould cavities to assist the forming. In a further embodiment (Fig. 4, not shown) the lower side of the sheet is also heated by means of a heater identical to heater 19 in Fig. 1.
GB4623062A 1962-12-07 1962-12-07 Moulding thermoplastic sheet material Expired GB1019797A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4623062A GB1019797A (en) 1962-12-07 1962-12-07 Moulding thermoplastic sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4623062A GB1019797A (en) 1962-12-07 1962-12-07 Moulding thermoplastic sheet material

Publications (1)

Publication Number Publication Date
GB1019797A true GB1019797A (en) 1966-02-09

Family

ID=10440389

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4623062A Expired GB1019797A (en) 1962-12-07 1962-12-07 Moulding thermoplastic sheet material

Country Status (1)

Country Link
GB (1) GB1019797A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2559622A1 (en) * 2001-01-31 2013-02-20 The Procter & Gamble Company Method and apparatus for forming films
CN112936829A (en) * 2021-03-18 2021-06-11 广东白云学院 Continuous bubble cap forming die and forming processing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2559622A1 (en) * 2001-01-31 2013-02-20 The Procter & Gamble Company Method and apparatus for forming films
EP2559622B1 (en) 2001-01-31 2016-09-14 The Procter and Gamble Company Apparatus for forming films
CN112936829A (en) * 2021-03-18 2021-06-11 广东白云学院 Continuous bubble cap forming die and forming processing method thereof

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