JPS5711019A - Flash removing for forming by split mold - Google Patents

Flash removing for forming by split mold

Info

Publication number
JPS5711019A
JPS5711019A JP8492180A JP8492180A JPS5711019A JP S5711019 A JPS5711019 A JP S5711019A JP 8492180 A JP8492180 A JP 8492180A JP 8492180 A JP8492180 A JP 8492180A JP S5711019 A JPS5711019 A JP S5711019A
Authority
JP
Japan
Prior art keywords
mold
split
flash
parison
split mold
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
JP8492180A
Other languages
Japanese (ja)
Other versions
JPS5856499B2 (en
Inventor
Ushigoro Sumitomo
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 JP8492180A priority Critical patent/JPS5856499B2/en
Publication of JPS5711019A publication Critical patent/JPS5711019A/en
Publication of JPS5856499B2 publication Critical patent/JPS5856499B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To improve the efficiency of the flash removal and to save labor by adding vibration to a split mold after joining together a pair of split molds protruding pinch-off projections along the mold cavity on the mold faces.
CONSTITUTION: After the parison P of vinyl chloride resin etc. is extruded from a extrusion die and is suspended between the split molds 8, 8' separated right and left, one of the split molds 8' is joined together with another mold 8 holding the parison P by hydraulic drive. Joint of both split molds 8, 8' is performed at the faces of the pinch-off projections 10, 10' and excessive resin is pressed and is squeezed out forming the flash 14. Then, by introducing compressed air into the parison P, a flow molding is performed and is cooled by the cooling jacket. When resin is cooled slightly, vibration is given to the split mold 8' by exciting the electromagnetic vibrator and the thin neck of the flash 14 is cut or made easy to be cut. After cooling a molded product G is taken out by separating the split mold 8' from the split mold 8.
COPYRIGHT: (C)1982,JPO&Japio
JP8492180A 1980-06-23 1980-06-23 Burr removal method in split mold molding Expired JPS5856499B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8492180A JPS5856499B2 (en) 1980-06-23 1980-06-23 Burr removal method in split mold molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8492180A JPS5856499B2 (en) 1980-06-23 1980-06-23 Burr removal method in split mold molding

Publications (2)

Publication Number Publication Date
JPS5711019A true JPS5711019A (en) 1982-01-20
JPS5856499B2 JPS5856499B2 (en) 1983-12-15

Family

ID=13844165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8492180A Expired JPS5856499B2 (en) 1980-06-23 1980-06-23 Burr removal method in split mold molding

Country Status (1)

Country Link
JP (1) JPS5856499B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926207A (en) * 1982-08-04 1984-02-10 Ushigoro Sumitomo Split die

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0494321U (en) * 1990-12-29 1992-08-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5926207A (en) * 1982-08-04 1984-02-10 Ushigoro Sumitomo Split die

Also Published As

Publication number Publication date
JPS5856499B2 (en) 1983-12-15

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