JPS5779039A - Method for manufacturing master pattern of duplicating casting - Google Patents

Method for manufacturing master pattern of duplicating casting

Info

Publication number
JPS5779039A
JPS5779039A JP15496780A JP15496780A JPS5779039A JP S5779039 A JPS5779039 A JP S5779039A JP 15496780 A JP15496780 A JP 15496780A JP 15496780 A JP15496780 A JP 15496780A JP S5779039 A JPS5779039 A JP S5779039A
Authority
JP
Japan
Prior art keywords
patterns
casting
block
model
gypsum
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
JP15496780A
Other languages
Japanese (ja)
Inventor
Toshihiro Mukoyama
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 JP15496780A priority Critical patent/JPS5779039A/en
Publication of JPS5779039A publication Critical patent/JPS5779039A/en
Pending legal-status Critical Current

Links

Landscapes

  • Machine Tool Copy Controls (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE: To improve working efficiency of manufacturing for duplicatig master patterns having different size, by diagramatically representing the peripheral surface of a clay model with contour line patterns having optional dimensions by taking images of the clay model from different angles with a moire camera, and by performing optical copying work on materials in accordance with the diagrams.
CONSTITUTION: A clay model 1 of a master pattern for casting is fixed to a jig which can be rotated and inclined freely, and the images of the front surface 4, the left side surface 5, and the right side surface 6 of the model 1 are taken 3 with a moire camera 2. From the photographs 4, 5, and 6, the front pattern 7 and the left and right side patterns 8 and 9 of the model 1 are produced with a contour pattern having an optional dimension. On the other hand, gypsum is poured into a prescribed gypsum mold 10 and a gypsum block 11 is manufactured in advance. The gypsum block is fitted to an optical copying device and the center 13 of the block 11 is adjusted. The contour patterns 7, 8, and 9 are also fitted to the optical copying device. Then, the peripheral surface of the block 11 is worked 14, 15, and 16 by means of the optical copying work in accordance with the contour line patterns 7, 8, and 9, and a master pattern 17 for duplicating casting is finished.
COPYRIGHT: (C)1982,JPO&Japio
JP15496780A 1980-11-04 1980-11-04 Method for manufacturing master pattern of duplicating casting Pending JPS5779039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15496780A JPS5779039A (en) 1980-11-04 1980-11-04 Method for manufacturing master pattern of duplicating casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15496780A JPS5779039A (en) 1980-11-04 1980-11-04 Method for manufacturing master pattern of duplicating casting

Publications (1)

Publication Number Publication Date
JPS5779039A true JPS5779039A (en) 1982-05-18

Family

ID=15595804

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15496780A Pending JPS5779039A (en) 1980-11-04 1980-11-04 Method for manufacturing master pattern of duplicating casting

Country Status (1)

Country Link
JP (1) JPS5779039A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072782A (en) * 1988-07-08 1991-12-17 Honda Giken Kogyo Kabushiki Kaisha Method of producing pattern for molding castings

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5499038A (en) * 1978-01-23 1979-08-04 Aida Eng Ltd Simple fabrication of master model

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5499038A (en) * 1978-01-23 1979-08-04 Aida Eng Ltd Simple fabrication of master model

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072782A (en) * 1988-07-08 1991-12-17 Honda Giken Kogyo Kabushiki Kaisha Method of producing pattern for molding castings

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