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GB1145834A - Improvements in or relating to presses - Google Patents

Improvements in or relating to presses

Info

Publication number
GB1145834A
GB1145834A GB23893/65A GB2389365A GB1145834A GB 1145834 A GB1145834 A GB 1145834A GB 23893/65 A GB23893/65 A GB 23893/65A GB 2389365 A GB2389365 A GB 2389365A GB 1145834 A GB1145834 A GB 1145834A
Authority
GB
United Kingdom
Prior art keywords
motor
toggle
ram
platen
switch
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
GB23893/65A
Inventor
Gordon Edward Tribe Simpson
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.)
Churchill Instrument Co Ltd
Original Assignee
Churchill Instrument Co 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 Churchill Instrument Co Ltd filed Critical Churchill Instrument Co Ltd
Priority to GB23893/65A priority Critical patent/GB1145834A/en
Priority to US554109A priority patent/US3423502A/en
Publication of GB1145834A publication Critical patent/GB1145834A/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
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices
    • B29C45/66—Mould opening, closing or clamping devices mechanical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/223—Injection mold closing means utilizing variable closing pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49998—Work holding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

1,145,834. Injection moulding machines. CHURCHILL INSTRUMENT CO. Ltd. 23 May, 1966 [4 June, 1965], No. 23893/65. Heading B5A. [Also in Division B3] A clamping press for an injection mould 17 is adjustable to accommodate moulds of different sizes. In the example shown the mould 17 is clamped between an intermediate platen 6 and a floating plate 14 carried by a fixed platen 2, by means of a toggle 7 operated by a ram 8. The toggle 7 and ram 8 are pivoted to a platen 4 whose position is adjustable according to the size of mould used by drive means 5 including an electric motor. The adjustment process comprises the following steps: (i) motor 9 moves thrust assembly 3 to the left until a switch 18 is actuated, (ii) switch 18 stops motor 9 and ram 8 extends toggle 7, (iii) motor 9 moves assembly 3 to the right until plate 14 actuates a switch 16 to stop the motor and cause ram 8 to retract toggle 7, (iv) when a limit switch 19 is tripped motor 9 moves platen 4 through a predetermined strain distance. When this position is reached motor 9 is automatically de-energized and fixes the platen 4 at the required distance so that when (v) ram 8 is automatically actuated the toggle 7 is re-extended and the mould clamped under the required locking force. Modifications.-In place of the switch 16 alternative sensing means may be used, e.g. (i) an optical beam device passing between the plates 2, 14, (ii) a device sensitive to current variation in the motor 9 or (iii) if the electrical drive 5 is replaced by an hydraulic motor, a device responsive to pressure variations in the hydraulic motor. In place of the toggle 7, a cam or screw arrangement may be used.
GB23893/65A 1965-06-04 1965-06-04 Improvements in or relating to presses Expired GB1145834A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB23893/65A GB1145834A (en) 1965-06-04 1965-06-04 Improvements in or relating to presses
US554109A US3423502A (en) 1965-06-04 1966-05-31 Presses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23893/65A GB1145834A (en) 1965-06-04 1965-06-04 Improvements in or relating to presses

Publications (1)

Publication Number Publication Date
GB1145834A true GB1145834A (en) 1969-03-19

Family

ID=10203016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23893/65A Expired GB1145834A (en) 1965-06-04 1965-06-04 Improvements in or relating to presses

Country Status (2)

Country Link
US (1) US3423502A (en)
GB (1) GB1145834A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1923813A1 (en) * 1968-05-09 1970-01-29 Buehler Ag Geb Method for operating a press, device for carrying out the method and use of the method
FR2498117A1 (en) * 1981-01-16 1982-07-23 Krupp Corpoplast Masch DEVICE FOR MOLDING A CONTAINER BY BLOWING FROM A BLANK

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579741A (en) * 1968-11-04 1971-05-25 Lester Engineering Co Machine and clamp force control system therefor
US3736087A (en) * 1969-12-23 1973-05-29 Netstal Ag Mold closing unit with separately acting rotary and fluid pressure piston drives
AT331498B (en) * 1970-03-25 1976-08-25 Florjancic Peter LOCKING DEVICE, IN PARTICULAR FOR INJECTION MOLDING MACHINES
CH558246A (en) * 1973-05-23 1975-01-31 Netstal Ag Maschf Giesserei MOLD CLAMPING UNIT FOR PLASTIC INJECTION MOLDING MACHINE.
DE2336991C2 (en) * 1973-07-20 1984-02-16 Karl 7298 Loßburg Hehl Adjusting and locking device for an abutment plate for the drive system of a mold clamping unit of an injection molding machine
ZA755683B (en) * 1975-09-05 1977-04-27 Morrison Pumps Sa Presses
USRE32048E (en) * 1979-01-11 1985-12-17 Prince Corporation Tie bar adjustment system
US4589830A (en) * 1983-08-01 1986-05-20 Clawson Burrell E Press control system
US5479838A (en) * 1992-12-28 1996-01-02 Yoshiki Industrial Co., Ltd. Two-stage drive type lever unit and machine apparatus using the same
US5630269A (en) * 1995-06-19 1997-05-20 General Motors Corporation Method for fixturing abutted sheet metal parts for welding
JP3293519B2 (en) * 1997-05-22 2002-06-17 松下電器産業株式会社 Printed circuit board positioning method
US5918368A (en) * 1997-08-27 1999-07-06 Solar Turbines, Inc. Method for making a recuperator cell
TW201228799A (en) * 2011-01-07 2012-07-16 Acumen Co Ltd Electrical injection molding machine
CN104589591A (en) * 2014-12-31 2015-05-06 苏州市博奥塑胶电子有限公司 Injection molding mould for injection molding machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2309460A (en) * 1939-10-04 1943-01-26 Lester Engineering Co Pressure casting machine link mechanism
US2298044A (en) * 1940-07-31 1942-10-06 Watson Stillman Co Molding machine
US2389169A (en) * 1942-05-20 1945-11-20 French Oil Mill Machinery Hydraulic motor
US2485290A (en) * 1947-01-18 1949-10-18 Cleveland Automatic Machine Co Die casting machine
US2666230A (en) * 1950-11-09 1954-01-19 Russell J Sherman Molding apparatus for molding material
US2676357A (en) * 1952-02-28 1954-04-27 James F Shannon Plastic molding conversion attachment for reciprocating presses
US2790204A (en) * 1955-05-24 1957-04-30 Eastman Kodak Co Injection molding machine with stress control system
US2880461A (en) * 1956-06-28 1959-04-07 Projectile & Engineering Compa Locking and injection actuating device for injection moulding machines
US2938232A (en) * 1957-06-21 1960-05-31 Hoover Co Combined injection and compression molding
US3036337A (en) * 1959-11-13 1962-05-29 Fellows Gear Shaper Co Injection molding machine with cushioning device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1923813A1 (en) * 1968-05-09 1970-01-29 Buehler Ag Geb Method for operating a press, device for carrying out the method and use of the method
FR2498117A1 (en) * 1981-01-16 1982-07-23 Krupp Corpoplast Masch DEVICE FOR MOLDING A CONTAINER BY BLOWING FROM A BLANK

Also Published As

Publication number Publication date
US3423502A (en) 1969-01-21

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