JPS57123032A - Method of setting clamping force of injection molder - Google Patents

Method of setting clamping force of injection molder

Info

Publication number
JPS57123032A
JPS57123032A JP919781A JP919781A JPS57123032A JP S57123032 A JPS57123032 A JP S57123032A JP 919781 A JP919781 A JP 919781A JP 919781 A JP919781 A JP 919781A JP S57123032 A JPS57123032 A JP S57123032A
Authority
JP
Japan
Prior art keywords
clamping
clamping force
tie bars
injection molder
whole length
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.)
Pending
Application number
JP919781A
Other languages
Japanese (ja)
Inventor
Ryoji Otsuki
Hiroyuki Tsuboi
Sadayoshi Yamada
Noriyuki Motomura
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP919781A priority Critical patent/JPS57123032A/en
Publication of JPS57123032A publication Critical patent/JPS57123032A/en
Pending 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
    • 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
    • B29C45/1751—Adjustment means allowing the use of moulds of different thicknesses

Landscapes

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

Abstract

PURPOSE:To facilitate the replacing operation of metal molds of toggle type injection molder, by detecting the displacement of tie bars, at the time of clamping, through a linear scale attached to a link housing. CONSTITUTION:In an injection molder, assuming that the whole length of the tie bars 12 be L, the diameter thereof be d, the thickness of molds attached to a stationary die plate 7 and a movable plate 8 be H, the distance between the die plate 8 and the link housing be l, the Young's modulus be E, and the clamping force be Fl, the whole length L of the tie bars 12 can be represented by the Formula. Based upon the Formula, the values for the clamping force Fl and the mold thickness H are set, and the whole length of the tie bar shall be calculated, and when the clamping parts are moved as a whole by rotating tie bar nuts 13 by a clamping displacement means so that the overall length of the tie bars 12 may become L, the set clamping force can be determined when clamping is done.
JP919781A 1981-01-24 1981-01-24 Method of setting clamping force of injection molder Pending JPS57123032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP919781A JPS57123032A (en) 1981-01-24 1981-01-24 Method of setting clamping force of injection molder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP919781A JPS57123032A (en) 1981-01-24 1981-01-24 Method of setting clamping force of injection molder

Publications (1)

Publication Number Publication Date
JPS57123032A true JPS57123032A (en) 1982-07-31

Family

ID=11713775

Family Applications (1)

Application Number Title Priority Date Filing Date
JP919781A Pending JPS57123032A (en) 1981-01-24 1981-01-24 Method of setting clamping force of injection molder

Country Status (1)

Country Link
JP (1) JPS57123032A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61252126A (en) * 1985-05-02 1986-11-10 Toshiba Mach Co Ltd Automatic mold clamping force regulating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61252126A (en) * 1985-05-02 1986-11-10 Toshiba Mach Co Ltd Automatic mold clamping force regulating device
JPH0536219B2 (en) * 1985-05-02 1993-05-28 Toshiba Machine Co Ltd

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