JPS5525388A - Improper mold detector for plastic injection molding machine - Google Patents

Improper mold detector for plastic injection molding machine

Info

Publication number
JPS5525388A
JPS5525388A JP9919378A JP9919378A JPS5525388A JP S5525388 A JPS5525388 A JP S5525388A JP 9919378 A JP9919378 A JP 9919378A JP 9919378 A JP9919378 A JP 9919378A JP S5525388 A JPS5525388 A JP S5525388A
Authority
JP
Japan
Prior art keywords
time
measuring
molding machine
injection molding
plastic injection
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.)
Granted
Application number
JP9919378A
Other languages
Japanese (ja)
Other versions
JPS5936859B2 (en
Inventor
Akio Iguchi
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
Priority to JP9919378A priority Critical patent/JPS5936859B2/en
Publication of JPS5525388A publication Critical patent/JPS5525388A/en
Publication of JPS5936859B2 publication Critical patent/JPS5936859B2/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
    • 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
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/768—Detecting defective moulding conditions

Landscapes

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

Abstract

PURPOSE:To exactly judge the molding propriety and molded article properties by providing a device for measuring time for moving a screw at predetermined distance at a plastic injection molding machine and comparing the time with standard value. CONSTITUTION:A plastic injection molding machine incorporating a screw 9 forwarding within an injection cylinder 5 communicating with a mold to fill plastic into the mold having stationary and movable molds 1 and 3 consists of a time measuring unit 20 for measuring the time when the injection pressure reaches predetermined level to the time when the screw moves at predetermined distance, time duration setting potentiometers 33, 34, 35 and 36 for setting the measuring upper and lower limit times, and an output unit 53 for producing an improper molding signal when the time measured by the above unit 20 exceeds the time duration set by the time duration setting potentiometers to thereby exactly detect the improperly molded article.
JP9919378A 1978-08-14 1978-08-14 Molding defect detection device for plastic injection molding machines Expired JPS5936859B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9919378A JPS5936859B2 (en) 1978-08-14 1978-08-14 Molding defect detection device for plastic injection molding machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9919378A JPS5936859B2 (en) 1978-08-14 1978-08-14 Molding defect detection device for plastic injection molding machines

Publications (2)

Publication Number Publication Date
JPS5525388A true JPS5525388A (en) 1980-02-23
JPS5936859B2 JPS5936859B2 (en) 1984-09-06

Family

ID=14240802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9919378A Expired JPS5936859B2 (en) 1978-08-14 1978-08-14 Molding defect detection device for plastic injection molding machines

Country Status (1)

Country Link
JP (1) JPS5936859B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61245075A (en) * 1985-04-22 1986-10-31 Toyo Commun Equip Co Ltd Near-by aircraft detecting system
JPS6339528U (en) * 1986-08-30 1988-03-14
JPH04173316A (en) * 1990-11-07 1992-06-22 Matsushita Electric Ind Co Ltd Non-defective molded product distinguishing method for injection molding machine
EP0563466A1 (en) * 1992-03-31 1993-10-06 Hummel, Erhard Process and equipment for ascertainment of sumvalues of parameters of processes for controlling of injection moulding machines

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2911560B2 (en) * 1990-07-24 1999-06-23 株式会社小松製作所 Error detection method for injection molding machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61245075A (en) * 1985-04-22 1986-10-31 Toyo Commun Equip Co Ltd Near-by aircraft detecting system
JPS6339528U (en) * 1986-08-30 1988-03-14
JPH04173316A (en) * 1990-11-07 1992-06-22 Matsushita Electric Ind Co Ltd Non-defective molded product distinguishing method for injection molding machine
EP0563466A1 (en) * 1992-03-31 1993-10-06 Hummel, Erhard Process and equipment for ascertainment of sumvalues of parameters of processes for controlling of injection moulding machines

Also Published As

Publication number Publication date
JPS5936859B2 (en) 1984-09-06

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