JPS63227316A - Injection apparatus - Google Patents

Injection apparatus

Info

Publication number
JPS63227316A
JPS63227316A JP6082387A JP6082387A JPS63227316A JP S63227316 A JPS63227316 A JP S63227316A JP 6082387 A JP6082387 A JP 6082387A JP 6082387 A JP6082387 A JP 6082387A JP S63227316 A JPS63227316 A JP S63227316A
Authority
JP
Japan
Prior art keywords
screw
check valve
opening
proximity switch
closing
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.)
Withdrawn
Application number
JP6082387A
Other languages
Japanese (ja)
Other versions
JPH0451330B2 (en
Inventor
Yoshiharu Shima
Original Assignee
Nissei Plastics Ind Co
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 Nissei Plastics Ind Co filed Critical Nissei Plastics Ind Co
Priority to JP6082387A priority Critical patent/JPH0451330B2/ja
Publication of JPS63227316A publication Critical patent/JPS63227316A/en
Publication of JPH0451330B2 publication Critical patent/JPH0451330B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50Axially movable screw
    • B29C45/52Non-return devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating

Abstract

PURPOSE: To perform injection control while confirming the opening and closing stats of the check valve in a heating cylinder, by mounting a means for transmitting the change of the position caused by the opening and closing of the check valve to the outside and the position detection means of a screw rear part for detecting the positional change transmitted by said transmission means.
CONSTITUTION: Proximity switches 27, 28 move so as to advance and retract along with a screw 12 through a back plate 20. A drawing shows such a state that a check valve 14, opened until the screw 12 advances after the completion of weighing, retracts by the pressure of a resin and the advance of the screw 12 to be closed. With the retraction movement of the check valve 14, a ring member 24 also moves so as to retract to the position of the proximity switch 28 from the position of the proximity switch 27 and, when the proximity switch 28 is turned ON, the opening of the valve is confirmed and, at the same time, the position of the screw at that point of time is set to an injection start point to perform injection control.
COPYRIGHT: (C)1988,JPO&Japio
JP6082387A 1987-03-16 1987-03-16 Expired - Fee Related JPH0451330B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6082387A JPH0451330B2 (en) 1987-03-16 1987-03-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6082387A JPH0451330B2 (en) 1987-03-16 1987-03-16

Publications (2)

Publication Number Publication Date
JPS63227316A true JPS63227316A (en) 1988-09-21
JPH0451330B2 JPH0451330B2 (en) 1992-08-18

Family

ID=13153460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6082387A Expired - Fee Related JPH0451330B2 (en) 1987-03-16 1987-03-16

Country Status (1)

Country Link
JP (1) JPH0451330B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989006186A1 (en) * 1987-12-25 1989-07-13 Fanuc Ltd Abnormality detector of injection apparatus
US7074028B2 (en) 2003-01-17 2006-07-11 Fanuc Ltd Injection molding machine having a freely rotatable screw
US7744787B2 (en) 2006-09-12 2010-06-29 Nissei Plastic Industrial Co., Ltd. Anomaly monitoring method of an injection molding machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989006186A1 (en) * 1987-12-25 1989-07-13 Fanuc Ltd Abnormality detector of injection apparatus
US5153149A (en) * 1987-12-25 1992-10-06 Fanuc Ltd. Injection apparatus having a check valve abnormality detector
US7074028B2 (en) 2003-01-17 2006-07-11 Fanuc Ltd Injection molding machine having a freely rotatable screw
US7744787B2 (en) 2006-09-12 2010-06-29 Nissei Plastic Industrial Co., Ltd. Anomaly monitoring method of an injection molding machine

Also Published As

Publication number Publication date
JPH0451330B2 (en) 1992-08-18

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees