GB1122608A - Press for the manufacture of pressed articles of synthetic plastics formed material - Google Patents

Press for the manufacture of pressed articles of synthetic plastics formed material

Info

Publication number
GB1122608A
GB1122608A GB55920/66A GB5592066A GB1122608A GB 1122608 A GB1122608 A GB 1122608A GB 55920/66 A GB55920/66 A GB 55920/66A GB 5592066 A GB5592066 A GB 5592066A GB 1122608 A GB1122608 A GB 1122608A
Authority
GB
United Kingdom
Prior art keywords
cylinder
locking
piston
parts
press
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
GB55920/66A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1122608A publication Critical patent/GB1122608A/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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • B29C33/20—Opening, closing or clamping
    • B29C33/202—Clamping means operating on closed or nearly closed mould parts, the clamping means being independently movable of the opening or closing means
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
    • B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
    • 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
    • B29C33/20—Opening, closing or clamping

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

1,122,608. Locking device for presses. E. GONON. 14 Dec., 1966 [15 Dec., 1965], No. 55920/66. Heading B5A. A press for manufacturing articles of foamed plastics e.g. polystyrene comprises a two part mould 13, 14, Fig. 1, the parts being relatively movable together by fluid rams 12, Fig. 3, and a locking cylinder 21 connected to one of the mould parts (e.g. connected to the frame to which the lower mould part is also fixed) having a locking member engageable with eounterholding means 31 connected to the other mould part (e.g. connected to cylinder 9 of ram 12 to which the upper mould part is also fixed) when the parts are closed together, the connection between the locking cylinder 21 and locking member including a lost-motion mechanism. Thus, on disengaging the locking device and counter-holding means, there is a limited amount of free movement of the locking cylinder 21 before the cylinder 21 moves the locking member out of engagement. As shown in Fig. 3, the locking device comprises a locking piston rod 22 of cylinder (21) carrying a piston 23 reciprocable in cylinder 24 of a further piston 19 which effects the engagement, piston 23 abutting faces 27, 28 of cylinder 24 on withdrawal and extension of piston rod 22.
GB55920/66A 1965-12-15 1966-12-14 Press for the manufacture of pressed articles of synthetic plastics formed material Expired GB1122608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1126865 1965-12-15

Publications (1)

Publication Number Publication Date
GB1122608A true GB1122608A (en) 1968-08-07

Family

ID=3627774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55920/66A Expired GB1122608A (en) 1965-12-15 1966-12-14 Press for the manufacture of pressed articles of synthetic plastics formed material

Country Status (4)

Country Link
CH (1) CH450704A (en)
DE (1) DE1629441A1 (en)
ES (1) ES334501A1 (en)
GB (1) GB1122608A (en)

Also Published As

Publication number Publication date
ES334501A1 (en) 1968-02-01
CH450704A (en) 1968-01-31
DE1629441A1 (en) 1971-02-04

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