Optical-parts molding die and optical-parts manufacturing method
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0376560
(2007-07-19)
|
등록번호 |
US-8852471
(2014-10-07)
|
우선권정보 |
JP-2006-216702 (2006-08-09) |
국제출원번호 |
PCT/JP2007/064247
(2007-07-19)
|
§371/§102 date |
20090205
(20090205)
|
국제공개번호 |
WO2008/018280
(2008-02-14)
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발명자
/ 주소 |
- Naito, Atsushi
- Kaneko, Naoki
- Matsumoto, Akihiko
- Sekihara, Kanji
- Hara, Shinichiro
|
출원인 / 주소 |
- Konica Minolta Opto, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
1 |
초록
▼
A die having a plurality of cavities and a temperature sensor for acquiring a temperature value in which the number of the cavities is larger than that of electrothermal conversion elements. When viewed from a direction perpendicular to the surface of a parting line, all cavities and a temperature s
A die having a plurality of cavities and a temperature sensor for acquiring a temperature value in which the number of the cavities is larger than that of electrothermal conversion elements. When viewed from a direction perpendicular to the surface of a parting line, all cavities and a temperature sensor are arranged in a region occupied by the electrothermal conversion elements. Interval between the outlines of the cavities is smaller than the minimum interval between the outline of the cavity and the electrothermal conversion element, and the shortest distance between the electrothermal conversion element and the temperature measuring portion of a temperature measuring element is shorter than the minimum interval between the outline of the cavity and the electrothermal conversion element.
대표청구항
▼
1. An optical-parts molding die comprising: a fixed side die; anda movable side die,wherein die clamping operation is performed while adjusting temperatures of the fixed side die and the movable side die and a molding material is injected into a molding space formed therebetween to manufacture optic
1. An optical-parts molding die comprising: a fixed side die; anda movable side die,wherein die clamping operation is performed while adjusting temperatures of the fixed side die and the movable side die and a molding material is injected into a molding space formed therebetween to manufacture optical parts, the optical-parts molding die further comprising:a plurality of cavity portions each forming the molding space; andat least one temperature measuring element for acquiring a temperature value to be used for a temperature adjustment, the at least one temperature measuring element being arranged outside of each of the plurality of cavity portions as viewed from a direction perpendicular to a surface of a parting line between the fixed side die and the movable side die,wherein at least one of the fixed side die and the movable side die includes at least one electrothermal conversion element for heating the plurality of cavity portions, and a number of the plurality of cavity portions is equal to or greater than a number of the at least one electrothermal conversion element,wherein all of the plurality of cavity portions and the at least one temperature measuring element are arranged within an area occupied by the at least one electrothermal conversion element as viewed from a direction perpendicular to a surface of the parting line;wherein, as viewed from the direction perpendicular to the surface of the parting line, an interval between exteriors of the plurality of cavity portions is smaller than a minimum interval between the exteriors of the plurality of cavity portions and the at least one electrothermal conversion element, andwherein, as viewed from the direction perpendicular to the surface of the parting line, a minimum distance between the at least one electrothermal conversion element and a temperature measuring portion of the at least one temperature measuring element is smaller than a minimum interval between the exteriors of the plurality of cavity portions and the at least one electrothermal conversion element. 2. The optical-parts molding die of claim 1, wherein a length of the molding space formed in each of the plurality of cavity portions in the direction perpendicular to the surface of the parting line is smaller than a minimum distance between an outline surface of the molding space and the at least one temperature measuring element. 3. The optical-parts molding die of claim 1, wherein the at least one electrothermal conversion element is one of annular and shaped in an interrupted annular configuration, as viewed from the direction perpendicular to the surface of the parting line. 4. The optical-parts molding die of claim 1, wherein the fixed side die and the movable side die include the at least one electrothermal conversion element. 5. The optical-parts molding die of claim 1, wherein a number of the at least one electrothermal conversion element is equal to a number of the at least one temperature measuring element. 6. An optical-parts manufacturing method, in which die clamping operation is performed while adjusting temperatures of a fixed side die and a movable side die, and a molding material is injected into a molding space formed therebetween to manufacture optical parts, the optical-parts molding method using, the fixed side die and the movable side die havinga plurality of cavity portions each forming a molding space, andat least one temperature measuring element configured to acquire a temperature value to be used for a temperature adjustment, the at least one temperature measuring element being arranged outside of each of the plurality of cavity portions as viewed from a direction perpendicular to a surface of a parting line between the fixed side die and the movable side die,wherein at least one of the fixed side die and the movable side die includes at least one electrothermal conversion element for heating the plurality of cavity portions, and a number of the plurality of cavity portions is equal to or greater than a number of the at least one electrothermal conversion element,wherein all of the plurality of cavity portions and the at least one temperature measuring element are arranged within an area occupied by the at least one electrothermal conversion element as viewed from a direction perpendicular to a surface of a parting line;wherein, as viewed from the direction perpendicular to the surface of the parting line, an interval between exteriors of the plurality of cavity portions is smaller than a minimum interval between the exteriors of the plurality of cavity portions and the at least one electrothermal conversion element, andwherein, as viewed from the direction perpendicular to the surface of the parting line, a minimum distance between the at least one electrothermal conversion element and a temperature measuring portion of the at least one temperature measuring element is smaller than the minimum interval between the exteriors of the plurality of cavity portions and the at least one electrothermal conversion element. 7. The optical-parts molding die of claim 1, wherein each of the at least one electrothermal conversion element is arranged to surround the plurality of cavity portions. 8. The optical-parts manufacturing method of claim 6, wherein each of the at least one electrothermal conversion element is arranged to surround the plurality of cavity portions. 9. The optical-parts manufacturing method of claim 6, wherein a length of the molding space formed in each of the plurality of cavity portions in the direction perpendicular to the surface of the parting line is smaller than a minimum distance between an outline surface of the molding space and the at least one temperature measuring element.
이 특허에 인용된 특허 (1)
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Maus Steven M. (Osseo MN) Galic George J. (Columbia Heights MN), Precision surface-replicating thermoplastic injection molding method and apparatus, using a heating phase and a cooling.
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