GB1294068A - Improvements in or relating to rotary moulding machines - Google Patents

Improvements in or relating to rotary moulding machines

Info

Publication number
GB1294068A
GB1294068A GB2352471A GB2352471A GB1294068A GB 1294068 A GB1294068 A GB 1294068A GB 2352471 A GB2352471 A GB 2352471A GB 2352471 A GB2352471 A GB 2352471A GB 1294068 A GB1294068 A GB 1294068A
Authority
GB
United Kingdom
Prior art keywords
mould
coil
axis
frame
trunnions
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
GB2352471A
Inventor
Michel Pierre Cyrille Guillaud
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.)
CONSTRUCTION DE MATERIEL ELECT
Original Assignee
CONSTRUCTION DE MATERIEL ELECT
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 CONSTRUCTION DE MATERIEL ELECT filed Critical CONSTRUCTION DE MATERIEL ELECT
Publication of GB1294068A publication Critical patent/GB1294068A/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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/46—Heating or cooling
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0811—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using induction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Induction Heating (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

1294068 Rotary moulding machines SOC D'ETUDES ET DE CONSTRUCTION DE MATERIEL ELECTRIQUE ET RADIOELECTRIQUE 19 April 1971 [10 March 1970] 23524/71 Heading B5A [Also in Division H5] A rotary mould 13 comprises an induction heating coil 18 arranged closely around its outer surface so that the mould can be easily fitted into or removed from the coil. The mould is rotatably mounted in a frame 2 by means of detachable trunnions 12, 14 so that it can be driven about an axis Y-Y<SP>1</SP> by a motor 16, and the frame 2 is mounted on shafts 3a, 3b supported by adjustable legs 5, 7, so that it can be rotated about an axis X-X<SP>1</SP> by a motor 8. The legs 5 can be moved on rails 22 to accommodate moulds of varying widths. The coil 18 is arranged as a sheath with a shape corresponding to the mould, bounded by two planes parallel to the axis of rotation of the mould, and disposed mainly on one side of the trunnions 12, 14. The materal of the coils can be hollow (Fig. 5, not shown) so that a cooling fluid can be circulated through them. If necessary perforations (11), Fig. 5, can be directed towards the mould so that when heating is discontinued, a cooling fluid can act on the mould. The mould can be lined with a metal having a higher thermal conductivity than the mould proper. An external lining of anodized aluminium film can be applied to prevent heat losses by conduction. The coil 18 can be surrounded by a magnetic circuit secured to the frame 2 to channel the lines of flux generated by the coil. Copper plates 21 can be disposed along the mould portions likely to absorb the greater part of the heat energy.
GB2352471A 1970-03-10 1971-04-19 Improvements in or relating to rotary moulding machines Expired GB1294068A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7008617A FR2082317A5 (en) 1970-03-10 1970-03-10

Publications (1)

Publication Number Publication Date
GB1294068A true GB1294068A (en) 1972-10-25

Family

ID=9052058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2352471A Expired GB1294068A (en) 1970-03-10 1971-04-19 Improvements in or relating to rotary moulding machines

Country Status (3)

Country Link
DE (1) DE2111461C3 (en)
FR (1) FR2082317A5 (en)
GB (1) GB1294068A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193464A (en) * 1986-07-22 1988-02-10 Rom Plastics Limited A mould for use in rotational moulding
GB2364953A (en) * 2000-07-21 2002-02-13 Emeracly Holdings Ltd A mould with an arranged heating means
CN101850322A (en) * 2010-05-17 2010-10-06 张继华 360-degree hot spin forming process
EP2832519A1 (en) * 2013-07-30 2015-02-04 Confindustria Bergamo Mold for rotational molding and method for heating said mold
EP2832520A1 (en) * 2013-07-30 2015-02-04 Confindustria Bergamo Machine and method for rotational molding of hollow objects of thermoplastic material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3524214A1 (en) * 1985-07-06 1987-01-08 Happich Gmbh Gebr Process and device for producing hollow, thin-walled, flexible plastics articles from plastisol

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193464A (en) * 1986-07-22 1988-02-10 Rom Plastics Limited A mould for use in rotational moulding
GB2364953A (en) * 2000-07-21 2002-02-13 Emeracly Holdings Ltd A mould with an arranged heating means
GB2364953B (en) * 2000-07-21 2004-04-21 Emeracly Holdings Ltd A mould
CN101850322A (en) * 2010-05-17 2010-10-06 张继华 360-degree hot spin forming process
EP2832519A1 (en) * 2013-07-30 2015-02-04 Confindustria Bergamo Mold for rotational molding and method for heating said mold
EP2832520A1 (en) * 2013-07-30 2015-02-04 Confindustria Bergamo Machine and method for rotational molding of hollow objects of thermoplastic material

Also Published As

Publication number Publication date
FR2082317A5 (en) 1971-12-10
DE2111461B2 (en) 1973-10-18
DE2111461A1 (en) 1971-11-04
DE2111461C3 (en) 1974-05-09

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees