Title:
MOLDING MACHINE FOR BLOCK OF BELT
Document Type and Number:
Japanese Patent JP3789600
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce both material loss and mold clamping force in a molding machine for insert molding a block for a belt locked fixedly to an equal interval in a belt lengthwise direction at endless tension zone by using a molding material made of thermosetting resin at the time of manufacturing a power transmission belt used for a belt type stepless transmission.
SOLUTION: The molding machine comprises a plasticizing metering unit 1 for metering molding material w1 while plasticizing it, a press-fitting unit 11 for storing the material w1 plasticized by the unit 1 in a pot 12 provided with an opening at a lower end extended in a vertical direction to extrude it from the lower end opening of the pot 12 by a plunger 13, and a mold 21 disposed so that the pot 12 is vertically passed through an upper mold 22 in such a manner that a lower end opening is disposed at mating surfaces between the mold 22 and lower mold 23, a plurality of cavities 24 are formed and a heater 26 for heating to cure the material w1 press-fitted in the cavities 24. With this configuration, the clamping force necessary to press-fit the material by the press-fitting mechanism is reduced by an amount omitting a spool.
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Inventors:
Iwasaki
Hiroyuki Sato
Shuichi Maruyama
Takashi Ikeno
Hiroyuki Sato
Shuichi Maruyama
Takashi Ikeno
Application Number:
JP14009797A
Publication Date:
June 28, 2006
Filing Date:
May 29, 1997
Export Citation:
Assignee:
Bando Chemical Industries, Ltd.
International Classes:
B29C45/26; B29D29/10; B29C45/14; F16G5/16; B29K101/10; (IPC1-7): B29D29/10; B29C45/26; //B29K101:10
Domestic Patent References:
| JP270416A | ||||
| JP8143682A |
Other References:
白石順一郎、「射出成形用金型」第4版、日刊工業新聞社、昭和51年12月10日、P.87-88
Attorney, Agent or Firm:
Hiroshi Maeda