JPS6471722A - Setting of projection starting position of molded form in molding machine - Google Patents

Setting of projection starting position of molded form in molding machine

Info

Publication number
JPS6471722A
JPS6471722A JP22919687A JP22919687A JPS6471722A JP S6471722 A JPS6471722 A JP S6471722A JP 22919687 A JP22919687 A JP 22919687A JP 22919687 A JP22919687 A JP 22919687A JP S6471722 A JPS6471722 A JP S6471722A
Authority
JP
Japan
Prior art keywords
projecting
projection
rod
starting position
time
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
JP22919687A
Other languages
Japanese (ja)
Other versions
JPH0422417B2 (en
Inventor
Miyuki Shimizu
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.)
Nissei Plastic Industrial Co Ltd
Original Assignee
Nissei Plastic Industrial 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 Nissei Plastic Industrial Co Ltd filed Critical Nissei Plastic Industrial Co Ltd
Priority to JP22919687A priority Critical patent/JPS6471722A/en
Publication of JPS6471722A publication Critical patent/JPS6471722A/en
Publication of JPH0422417B2 publication Critical patent/JPH0422417B2/ja
Granted 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
    • B29C45/7626—Measuring, controlling or regulating the ejection or removal of moulded articles
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • B29C2045/4036—Ejector constructions; Ejector operating mechanisms driven by a screw and nut mechanism

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 shorten a time necessary for projecting and prevent a bad effect due to shocking, by a method wherein a projection rod is advanced by a force smaller than the pushing force of a projecting plate and the position of the projection rod, whereat the movement thereof is stopped by contact between the tip end of the rod and the projecting plate, is detected to determine the position as the projection starting position of a molded form in a molding process. CONSTITUTION:When projecting advance is selected by a manual switch, a motor 3 is rotated into advancing direction with a torque, set in a low torque setter 22, and a nut 5 is turned through a V-belt 4. According to the turning of the nut 5, a projecting rod 6 is advanced. At the same time, counting of a time, set in a time setter 27, is started and the position of the projecting rod 6 upon the finish of the counting is detected by the number of pulses, counted by a position counter 29, while the position is inputted into a memory in a central controller 28 as the projection starting position (also the limiting position of retreatment after the projection).
JP22919687A 1987-09-11 1987-09-11 Setting of projection starting position of molded form in molding machine Granted JPS6471722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22919687A JPS6471722A (en) 1987-09-11 1987-09-11 Setting of projection starting position of molded form in molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22919687A JPS6471722A (en) 1987-09-11 1987-09-11 Setting of projection starting position of molded form in molding machine

Publications (2)

Publication Number Publication Date
JPS6471722A true JPS6471722A (en) 1989-03-16
JPH0422417B2 JPH0422417B2 (en) 1992-04-17

Family

ID=16888315

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22919687A Granted JPS6471722A (en) 1987-09-11 1987-09-11 Setting of projection starting position of molded form in molding machine

Country Status (1)

Country Link
JP (1) JPS6471722A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014561A1 (en) * 1990-03-29 1991-10-03 Fanuc Ltd Ejector mechanism of injection molding machine
US5310331A (en) * 1990-06-16 1994-05-10 Fanuc Ltd Injection molding machine with a mold core drive apparatus
EP0656250A1 (en) * 1993-04-20 1995-06-07 Sankyokasei Kabushiki Kaisha Apparatus for controlling gate cut and ejection for an injection molding machine and method for controlling the same
US6616872B2 (en) 2000-11-10 2003-09-09 Fanuc Ltd Method of and apparatus for determining separating force of molded product from mold
JP2007320103A (en) * 2006-05-31 2007-12-13 Nissei Plastics Ind Co Molded article protrusion method of injection molding machine
EP1997604A1 (en) * 2007-05-28 2008-12-03 Fanuc Ltd Injection molding machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942941A (en) * 1982-09-02 1984-03-09 Nissei Plastics Ind Co Control of projection for injection molding machine
JPS6227126A (en) * 1985-07-29 1987-02-05 Nissei Plastics Ind Co Control method in position setting
JPS62104723A (en) * 1985-10-31 1987-05-15 Meiki Co Ltd Projection controlling of molded part of injection molder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942941A (en) * 1982-09-02 1984-03-09 Nissei Plastics Ind Co Control of projection for injection molding machine
JPS6227126A (en) * 1985-07-29 1987-02-05 Nissei Plastics Ind Co Control method in position setting
JPS62104723A (en) * 1985-10-31 1987-05-15 Meiki Co Ltd Projection controlling of molded part of injection molder

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014561A1 (en) * 1990-03-29 1991-10-03 Fanuc Ltd Ejector mechanism of injection molding machine
US5196213A (en) * 1990-03-29 1993-03-23 Fanuc Ltd. Ejector mechanism in an injection molding machine
US5310331A (en) * 1990-06-16 1994-05-10 Fanuc Ltd Injection molding machine with a mold core drive apparatus
EP0487734B1 (en) * 1990-06-16 1995-09-20 Fanuc Ltd. Injection molding machine provided with metallic core driving device
EP0656250A1 (en) * 1993-04-20 1995-06-07 Sankyokasei Kabushiki Kaisha Apparatus for controlling gate cut and ejection for an injection molding machine and method for controlling the same
EP0656250A4 (en) * 1993-04-20 1997-12-17 Sankyokasei Kabushiki Kaisha Apparatus for controlling gate cut and ejection for an injection molding machine and method for controlling the same.
US6616872B2 (en) 2000-11-10 2003-09-09 Fanuc Ltd Method of and apparatus for determining separating force of molded product from mold
JP2007320103A (en) * 2006-05-31 2007-12-13 Nissei Plastics Ind Co Molded article protrusion method of injection molding machine
EP1997604A1 (en) * 2007-05-28 2008-12-03 Fanuc Ltd Injection molding machine
US7708540B2 (en) 2007-05-28 2010-05-04 Fanuc Ltd Injection molding machine

Also Published As

Publication number Publication date
JPH0422417B2 (en) 1992-04-17

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