JP2004249350A - Die-casting die - Google Patents

Die-casting die Download PDF

Info

Publication number
JP2004249350A
JP2004249350A JP2003044132A JP2003044132A JP2004249350A JP 2004249350 A JP2004249350 A JP 2004249350A JP 2003044132 A JP2003044132 A JP 2003044132A JP 2003044132 A JP2003044132 A JP 2003044132A JP 2004249350 A JP2004249350 A JP 2004249350A
Authority
JP
Japan
Prior art keywords
degassing
corrugated
die
mold
holding member
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
JP2003044132A
Other languages
Japanese (ja)
Other versions
JP3935088B2 (en
Inventor
Kenji Mura
謙次 村
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.)
MURA SEISAKUSHO KK
Original Assignee
MURA SEISAKUSHO KK
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 MURA SEISAKUSHO KK filed Critical MURA SEISAKUSHO KK
Priority to JP2003044132A priority Critical patent/JP3935088B2/en
Publication of JP2004249350A publication Critical patent/JP2004249350A/en
Application granted granted Critical
Publication of JP3935088B2 publication Critical patent/JP3935088B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a die-casting die having a degassing passage part formed in a simple structure and easily and reliably performing degassing. <P>SOLUTION: The die-casting die has degassing blocks 13 and 14 to form a degassing passage 30 communicated with a casting cavity 16. The degassing blocks 13 and 14 have a plurality of corrugated projecting bar parts 20 and recessed groove parts 22 facing each other. The projecting bar parts 20 and the recessed groove parts 22 facing each other form a space at a predetermined interval, and the space is communicated with the casting cavity 16 for a degassing passage 30. One degassing block 14 comprises a corrugated part forming member 24 having a recessed groove part 22 and a recessed holding member 26 which stores and fixes a base part 24a of the corrugated part forming member 24. The base part 24a of the corrugated part forming member 24 has a tapered part 32 formed of a pair of side surfaces which are tapered toward end parts and facing each other, and a storage part 34 of the holding member 26 is formed in a recess in which the tapered part 32 is fitted. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、金属のダイカスト成形を行うための金型に用いられるガス抜き部の構造に関する。
【0002】
【従来の技術】
【特許文献1】実公平8−7970号公報
従来、金属製品のダイカスト成型に用いられる金型は、製品を成型する一対の金型から成り、その金型の一端に設けられ溶融金属である溶湯を注入する湯口と、溶湯が流れる湯道と、製品成形用のキャビティを備える。さらに、このキャビティにはガス抜き用の通路が形成されている。そして、この金型をダイカスト成型装置に取り付け、溶湯がキャビティ内に送り込まれて成型が行なわれる。ここで、このダイカスト用金型のガス抜き用の通路は特許文献1に開示されているように、キャビティ部分から連続する空間の通路であり、溶湯が噴流状態で金型のキャビティ内に注入される際の金型内のガスを適切に抜く働きをする。これにより、製品が成型される際に、成型品内にガスを巻き込んだりすることによる欠陥の発生を防止している。
【0003】
このガス抜き用の通路空間は、特許文献1のように、波状の幅の広い凹凸を持った一対のガス抜き用ブロックを成形用金型に取り付けて対向させ、波状のガス抜き通路である空間を形成し、キャビティ内のガスを外部に逃がす構造となっていた。
【0004】
【発明が解決しようとする課題】
しかし、このような金型構造では、ガス抜き用ブロックの雌型部分の凹溝部の形成上、ガス抜き通路を形成する波状部分と、その側面の覆い板とが別々に設けられていた。従って、この波状部分と覆い板の両者の位置が合わせが難しく、位置ずれが生じやすいものであった。さらに、この位置ずれによりその隙間に溶湯が浸入したりして、金型を損傷したり製品の歩留まりを低下させたりしていた。しかも、ガス抜き用ブロックの部品点数が多く、金型の組み立て工数がかかり、コストも高くなりやすいものであった
この発明は、上記従来技術の問題点に鑑みなされたもので、ガス抜き用の通路部分が簡単な構造で、且つガス抜きが容易確実なダイカスト用金型を提供することを目的とする。
【0005】
【課題を解決するための手段】
この発明は、一対の成型用金型から成り、この成型用金型には成型用キャビティに連通するガス抜き通路を形成するガス抜き用ブロックが設けられ、各ガス抜き用ブロックは、互いに対向する複数の凸条部と凹溝部により各々構成された波状部を有し、この波状部は互いに対向した状態で所定間隔の隙間を形成し、この隙間がガス抜き通路として上記成型用キャビティに連通し、上記ガス抜き用ブロックの一方は、上記波状部を備えた波状部構成部材とこの波状部構成部材の基部を収容し固定した凹形状の保持部材とで構成されているダイカスト用金型である。
【0006】
また、上記波状部構成部材の基部は、端部に向かうに従い広がり互いに対向した一対の側面によるテーパ部を備え、上記保持部材の収容部はこのテーパ部が嵌合する凹形状に形成されている。さらに、上記波状部は、角を丸めた台形波状または矩形波状に形成されている。
【0007】
この発明のダイカスト用金型は、成形用金型内に設けられたガス抜き用金型の雌型を、波状部構成部材とその基部を収容し固定する凹形状の保持部材により構成し、波状部構成部材と保持部材との隙間に溶湯が浸入しないようにしたものである。
【0008】
【発明の実施の形態】
以下、この発明の一実施形態について、図面に基づいて説明する。この実施形態のダイカスト用金型10は、図1に示すように、成型用金型である固定型11と可動型12とを備え、固定型11及び可動型12の上部に、ガス抜き用ブロック13,14が各々埋設され固定されている。ガス抜き用ブロック13,14は、固定型11と可動型12とにより形成される成型用キャビティ16に連通するガス抜き通路を形成するもので、可動型12のガス抜き通路18に一端が連通している。
【0009】
固定型11に設けられたガス抜き用ブロック13は雄型であり、波状部である複数の凸条部20が互いに平行に一定間隔で形成され、凸条部20の長手方向に対して直角方向の断面が波形に設けられて波状部を構成している。
【0010】
また、可動型12に設けられたガス抜き用ブロック14は雌型であり、波状部である複数の溝状の凹溝部22が平行に一定間隔で形成された波状部構成部材24と、この波状部構成部材24を収容した凹形状の保持部材26とから成る。凹溝部22は凸条部20と等ピッチで形成され、図2に示すように、凸条部20を凹溝部22がほぼ一定の隙間を空けて収容し、凹溝部22間の仕切部27は凸条部20間の谷間28に一定の隙間を形成して入り込んでいる。この一定の隙間は、ガス抜き用ブロック13の通路29を介して、固定型11と可動型12のガス抜き通路18に連通し、波状のガス抜き通路30を形成している。ガス抜き通路30の他端は、ガス抜き用ブロック13,14の端部に連通して、大気に解放されている。なお、このガス抜き通路30は通路29に繋がる最初の数本の凹凸部による隙間を僅かに広くし、その後の隙間を僅かに狭いものとするとよい。これにより、ガスの排出がより容易となるとともに溶湯の噴出を確実に防止する。
【0011】
ガス抜き用ブロック14は、波状部構成部材24の基部24aが下端部に向かって広がったテーパ部32が両側面に形成され、このテーパ部32を有する基部24aと同形の収容空間が形成され、基部24aを密に嵌合する収容部34が保持部材26に形成されている。
【0012】
また、波状部構成部材24の波状部である凹溝部22が形成された部分は、凹溝部22の解放面に向かうに従いテーパ32とは逆に広がる形状に設けられている。このガス抜き用ブロック14が2部材で構成されているのは、凹溝部22が保持部材26の型の合わせ面よりも内側に形成されるため、凹溝部22の溝形成を容易且つ安価にするために、波状部構成部材24を別体としている。
【0013】
この実施形態のダイカスト用金型10の組み立ては、固定型11にガス抜き用ブロック13を図示しないボルトにより固定し、凸条部20が固定型11の合わせ面から突出した状態に設ける。また、可動型12に設けるガス抜き用ブロック14は、先ず、波状部構成部材24の基部24aを、保持部材26の収容部34に合わせて側方から摺動させて嵌合する。位置決めした後、図示しないボルトにより波状部構成部材24と保持部材26とを一体に固定する。この後、ガス抜き用ブロック14を可動型12の所定位置に固定する。このとき、凹溝部22は固定型11の凸条部20と対向して位置する。
【0014】
このダイカスト用金型10を用いたダイカスト成型は、周知の通り、図示しない射出プランジャーにより、溶湯が金型の湯口から成型用キャビティ16に噴流され、その際に成型用キャビティ16内のガスが、ガス抜き通路18を経て、ガス抜き用ブロック13,14により形成される波状のガス抜き通路30に逃げ、金型外に放出される。また、この波状のガス抜き通路30により、溶湯が波形部分に接触する際に冷却凝固され、溶湯のフラッシングが防止される。
【0015】
この実施形態のダイカスト用金型10によれば、ガス抜き用ブロック14が、波状部構成部材24と保持部材の2部材で構成され、波状構成部材24の基部24aを保持部材26の収容部34に嵌合させることにより位置決めされるので、正確に位置決めする事ができ、ずれることもない。しかもテーパ部32により収容部34に嵌合するので、上方に抜けることが無く、摺動方向にはピン等により簡単に固定することができる。また、ガス抜き用ブロック13の冷却液の通路部分の形成も保持部材26に容易に形成可能であり、ガスの吸引タイプの装置にも容易に適用可能なものである。また、ガス抜き通路30の波状部は、角を丸めた台形波状または矩形波状に形成されているので、製品の型抜き時の型離れが良く、ガス抜き通路30に溶湯の固まりが固着することがない。
【0016】
【発明の効果】
この発明によれば、ガス抜き用ブロックが、波状部構成部材と保持部材との2部材で構成され、波状構成部材の基部を保持部材の収容部に嵌合させることにより、取り付け及び位置決めされ、正確に位置決め固定する事ができる。従って波状部の位置ずれもなく、溶湯が部材の当接部間の隙間に浸入したりすることもなく、金型の耐久性も増す。また、波状部構成部材のテーパ部を保持部材の収容部に嵌合するだけで正確に位置決めが成され、取り付け強度も高い。また、波状部を、角を丸めた台形波状または矩形波状とすることにより、固化した溶湯の型離れも良いものである。
【図面の簡単な説明】
【図1】この発明の第一実施形態のダイカスト用金型を示す斜視図である。
【図2】この実施形態のダイカスト用金型のガス抜き用ブロックを示す縦断面図である。
【図3】この実施形態のガス抜き用ブロックの雄型を示す平面図である。
【図4】この実施形態のガス抜き用ブロックの雄型を示す正面図である。
【図5】この実施形態のガス抜き用ブロックの雌型を示す平面図である。
【図6】この実施形態のガス抜き用ブロックの雌型を示す正面図である。
【符号の説明】
10 ダイカスト用金型
11 固定型
12 可動型
13,14 ガス抜き用ブロック
16 成型用キャビティ
18,30 ガス抜き用通路
20 凸条部
22 凹溝部
24 波状部構成部材
24a 基部
26 保持部材
32 テーパ部
34 収容部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a gas vent portion used in a metal mold for performing die casting of metal.
[0002]
[Prior art]
Conventionally, a mold used for die-casting a metal product is composed of a pair of molds for molding the product, and a molten metal which is provided at one end of the mold and is a molten metal. , A runner through which molten metal flows, and a cavity for product molding. Furthermore, a passage for venting gas is formed in this cavity. Then, this mold is attached to a die casting molding apparatus, and the molten metal is fed into the cavity to perform molding. Here, the gas vent passage of the die casting mold is a passage in a space continuous from the cavity portion as disclosed in Patent Document 1, and the molten metal is injected into the mold cavity in a jet flow state. It works to properly remove gas from the mold when the mold is used. As a result, when a product is molded, the occurrence of defects due to entrainment of gas in the molded product is prevented.
[0003]
As described in Patent Document 1, this gas vent passage space is a space that is a wave-shaped gas vent passage by attaching a pair of gas vent blocks each having a corrugated wide uneven surface to a molding die and facing them. Was formed to allow the gas in the cavity to escape to the outside.
[0004]
[Problems to be solved by the invention]
However, in such a mold structure, a corrugated portion forming a gas vent passage and a cover plate on a side surface thereof are separately provided in forming the concave groove portion of the female portion of the gas vent block. Therefore, it is difficult to align the position of the wavy portion and the position of the cover plate, and the position shift is likely to occur. In addition, the molten metal invades the gap due to the displacement, thereby damaging the mold and reducing the yield of products. In addition, the present invention, which has a large number of parts for the degassing block, requires a lot of man-hours for assembling the mold, and is likely to have a high cost, has been made in view of the above-mentioned problems of the prior art. It is an object of the present invention to provide a die casting mold having a simple passage portion and easy and reliable degassing.
[0005]
[Means for Solving the Problems]
The present invention includes a pair of molding dies, and the molding dies are provided with degassing blocks that form degassing passages that communicate with the molding cavities, and each degassing block faces each other. A plurality of ridges and grooves are provided, each of which has a corrugated portion. The corrugated portions oppose each other to form a gap at a predetermined interval, and the gap communicates with the molding cavity as a gas vent passage. One of the degassing blocks is a die-casting mold including a corrugated component having the corrugated portion and a concave holding member that accommodates and fixes the base of the corrugated component. .
[0006]
In addition, the base of the corrugated portion constituting member has a tapered portion formed by a pair of side surfaces which are spread toward the end and opposed to each other, and the accommodating portion of the holding member is formed in a concave shape in which the tapered portion is fitted. . Further, the wavy portion is formed in a trapezoidal or rectangular wave shape with rounded corners.
[0007]
The die-casting mold of the present invention is characterized in that the female mold of the degassing mold provided in the molding mold is constituted by a concave-shaped holding member for accommodating and fixing the corrugated portion constituting member and its base. The molten metal is prevented from entering the gap between the component member and the holding member.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, a die casting mold 10 of this embodiment includes a fixed mold 11 and a movable mold 12 which are molding dies, and a degassing block is provided above the fixed mold 11 and the movable mold 12. 13 and 14 are respectively embedded and fixed. The degassing blocks 13 and 14 form a degassing passage communicating with a molding cavity 16 formed by the fixed die 11 and the movable die 12, and one end thereof communicates with a degassing passage 18 of the movable die 12. ing.
[0009]
The degassing block 13 provided in the fixed mold 11 is a male type, and a plurality of ridges 20 which are wavy portions are formed at regular intervals in parallel with each other, and are perpendicular to the longitudinal direction of the ridges 20. Are provided in a waveform to form a wavy portion.
[0010]
The degassing block 14 provided in the movable mold 12 is a female type, and includes a corrugated portion forming member 24 in which a plurality of groove-shaped concave grooves 22 which are corrugated portions are formed in parallel at regular intervals. And a concave holding member 26 accommodating the component member 24. The concave groove portions 22 are formed at the same pitch as the convex ridge portions 20, and as shown in FIG. 2, the concave ridge portions 20 accommodate the convex ridge portions 20 with a substantially constant gap therebetween, and the partition portion 27 between the concave groove portions 22 is formed. A certain gap is formed and enters the valley 28 between the ridges 20. This fixed gap communicates with the gas vent passage 18 of the fixed mold 11 and the movable mold 12 via the passage 29 of the gas vent block 13 to form a wavy gas vent passage 30. The other end of the degassing passage 30 communicates with the ends of the degassing blocks 13 and 14 and is open to the atmosphere. In addition, in the gas vent passage 30, the gap formed by the first several uneven portions connected to the passage 29 may be slightly widened, and the subsequent gap may be slightly narrowed. This makes it easier to discharge the gas and reliably prevents the ejection of the molten metal.
[0011]
In the degassing block 14, tapered portions 32 in which the base portion 24a of the wavy portion forming member 24 expands toward the lower end portion are formed on both side surfaces, and the same accommodation space as the base portion 24a having the tapered portion 32 is formed. An accommodating portion 34 for tightly fitting the base portion 24a is formed in the holding member 26.
[0012]
In addition, the portion of the wavy portion forming member 24 where the concave groove portion 22 is formed is formed in a shape that spreads in a direction opposite to the taper 32 toward the open surface of the concave groove portion 22. The degassing block 14 is composed of two members because the groove 22 is formed inside the mating surface of the mold of the holding member 26, so that the groove formation of the groove 22 is made easy and inexpensive. For this purpose, the corrugated portion constituting member 24 is provided separately.
[0013]
In assembling the die casting die 10 of this embodiment, the degassing block 13 is fixed to the fixed die 11 with a bolt (not shown), and the protrusion 20 is provided in a state protruding from the mating surface of the fixed die 11. The degassing block 14 provided on the movable die 12 is fitted by first sliding the base 24a of the corrugated component member 24 from the side in accordance with the accommodation portion 34 of the holding member 26. After the positioning, the corrugated portion constituting member 24 and the holding member 26 are integrally fixed by a bolt (not shown). Thereafter, the degassing block 14 is fixed at a predetermined position of the movable mold 12. At this time, the concave groove portion 22 is located to face the convex ridge portion 20 of the fixed mold 11.
[0014]
As is well known, in the die casting using the die casting die 10, a molten metal is jetted from a gate of the die to a molding cavity 16 by an injection plunger (not shown). The gas escapes through the gas vent passage 18 to the corrugated gas vent passage 30 formed by the gas vent blocks 13 and 14 and is discharged out of the mold. The corrugated gas vent passage 30 cools and solidifies the molten metal when it comes into contact with the corrugated portion, thereby preventing the molten metal from being flushed.
[0015]
According to the die casting mold 10 of this embodiment, the degassing block 14 is composed of two members, the wavy component 24 and the holding member, and the base 24 a of the wavy component 24 is used as the housing 34 of the holding member 26. Since it is positioned by fitting it into the device, it can be accurately positioned and does not shift. Moreover, since the tapered portion 32 fits into the housing portion 34, the tapered portion 32 does not come off and can be easily fixed by a pin or the like in the sliding direction. Further, the formation of the coolant passage portion of the degassing block 13 can also be easily formed in the holding member 26, and can be easily applied to a gas suction type device. Further, since the corrugated portion of the gas vent passage 30 is formed in a trapezoidal wave shape or a rectangular wave shape with rounded corners, the mold can be easily separated when the product is demolded, and the molten metal is fixed to the gas vent passage 30. There is no.
[0016]
【The invention's effect】
According to the present invention, the degassing block is composed of two members, the corrugated component member and the holding member, and is fitted and positioned by fitting the base of the corrugated component member into the housing portion of the holding member, It can be positioned and fixed accurately. Therefore, there is no displacement of the corrugated portion, the molten metal does not enter the gap between the contact portions of the members, and the durability of the mold is increased. Further, the positioning can be accurately performed simply by fitting the tapered portion of the corrugated portion constituting member into the housing portion of the holding member, and the mounting strength is high. Further, by forming the corrugated portion into a trapezoidal or rectangular wave shape with rounded corners, the solidified molten metal can be easily separated from the mold.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a die casting mold according to a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing a degassing block of the die casting die of this embodiment.
FIG. 3 is a plan view showing a male mold of the degassing block of the embodiment.
FIG. 4 is a front view showing a male mold of the degassing block of the embodiment.
FIG. 5 is a plan view showing a female mold of a degassing block according to this embodiment.
FIG. 6 is a front view showing a female mold of the degassing block of this embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Die-casting die 11 Fixed die 12 Movable die 13, 14 Gas release block 16 Molding cavity 18, 30 Gas release passage 20 Convex ridge 22 Depressed groove 24 Corrugated component 24a Base 26 Holding member 32 Tapered portion 34 Accommodation

Claims (3)

一対の成型用金型から成り、この成型用金型には成型用キャビティに連通するガス抜き通路を形成するガス抜き用ブロックが設けられ、各ガス抜き用ブロックは互いに対向する複数の波状部を有し、この波状部は互いに対向した状態で所定間隔の隙間を形成し、この隙間がガス抜き通路として上記成型用キャビティに連通し、上記ガス抜き用ブロックは、上記波状部を備えた波状部構成部材とこの波状部構成部材の基部を収容し固定した凹形状の保持部材とで構成されていることを特徴とするダイカスト用金型。It consists of a pair of molding dies, and the molding dies are provided with degassing blocks that form degassing passages communicating with the molding cavities, and each degassing block has a plurality of corrugated portions facing each other. The corrugated portion forms a gap at a predetermined interval in a state where the corrugated portion faces each other, and the gap communicates with the molding cavity as a gas vent passage, and the gas vent block has a corrugated portion provided with the corrugated portion. A die casting die, comprising: a component; and a concave holding member that accommodates and fixes a base of the corrugated component. 上記波状部構成部材の基部は、端部に向かうに従い広がり互いに対向した一対の側面によるテーパ部を備え、上記保持部材の収容部はこのテーパ部が嵌合する凹形状に形成されていることを特徴とする請求項1記載のダイカスト用金型。The base portion of the wavy portion constituting member has a tapered portion formed by a pair of side surfaces that face each other and expand toward the end portion, and the housing portion of the holding member is formed in a concave shape in which the tapered portion is fitted. The die for die casting according to claim 1, characterized in that: 上記波状部は、角を丸めた台形波状または矩形波状に形成されていることを特徴とする請求項1または2記載のダイカスト用金型。3. The die casting die according to claim 1, wherein the wavy portion is formed in a trapezoidal wave shape or a rectangular wave shape with rounded corners.
JP2003044132A 2003-02-21 2003-02-21 Die casting mold Expired - Lifetime JP3935088B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003044132A JP3935088B2 (en) 2003-02-21 2003-02-21 Die casting mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003044132A JP3935088B2 (en) 2003-02-21 2003-02-21 Die casting mold

Publications (2)

Publication Number Publication Date
JP2004249350A true JP2004249350A (en) 2004-09-09
JP3935088B2 JP3935088B2 (en) 2007-06-20

Family

ID=33026925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003044132A Expired - Lifetime JP3935088B2 (en) 2003-02-21 2003-02-21 Die casting mold

Country Status (1)

Country Link
JP (1) JP3935088B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013173164A (en) * 2012-02-24 2013-09-05 Honda Motor Co Ltd Casting mold
CN103286270A (en) * 2012-02-24 2013-09-11 本田技研工业株式会社 Cooling exhaust unit and casting mold

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013173164A (en) * 2012-02-24 2013-09-05 Honda Motor Co Ltd Casting mold
CN103286270A (en) * 2012-02-24 2013-09-11 本田技研工业株式会社 Cooling exhaust unit and casting mold

Also Published As

Publication number Publication date
JP3935088B2 (en) 2007-06-20

Similar Documents

Publication Publication Date Title
US8657599B2 (en) Device for demoulding negatives in plastic injection
US8091611B2 (en) Casting die device
JPH042414B2 (en)
TWI503216B (en) Mold for injection molding, and injection molding method, injection-molded article, and injection molding machine using the mold for injection molding
US8434546B1 (en) Casting mold core retention device and method
JP2004249350A (en) Die-casting die
US20080211129A1 (en) High volume vaccume/vent block for molding and casting systems
JPH0788903A (en) Injection mold
TWI691370B (en) Die casting device
KR101863202B1 (en) Diecasting sleeve
JP2005262472A (en) Injection mold, its manufacturing method and plastic optical lens manufacturing method
JP3611977B2 (en) Method for molding hollow body product and mold for molding
CN218462871U (en) Injection mold for outer shell
JP3415955B2 (en) Insert molding die and insert molding method
JP4287806B2 (en) Movable mold of molding machine with transfer board
JP2009190381A (en) Injection molding apparatus, and method for cooling injection-molded product
JP2001162658A (en) Mold
JPH06304698A (en) Device for casting cylinder head
JP2004090376A (en) Mold and insert molding method
JP3780327B2 (en) Silicon mold for vacuum casting
JPH10315271A (en) Mold for injection molding
JP2000301313A (en) Molding die
JPH11156513A (en) Casting method of metallic member and mold for casting
JP4520448B2 (en) Casting part manufacturing apparatus and manufacturing method
JPH1199540A (en) Injection molding die

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20041006

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20050613

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060405

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060526

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20061122

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070122

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20070214

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20070316

R150 Certificate of patent or registration of utility model

Ref document number: 3935088

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100330

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110330

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110330

Year of fee payment: 4

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20160330

Year of fee payment: 9

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term