JPH0224110A - Mold for synthetic resin and valve seat piece to be incorporated into the same - Google Patents
Mold for synthetic resin and valve seat piece to be incorporated into the sameInfo
- Publication number
- JPH0224110A JPH0224110A JP17585288A JP17585288A JPH0224110A JP H0224110 A JPH0224110 A JP H0224110A JP 17585288 A JP17585288 A JP 17585288A JP 17585288 A JP17585288 A JP 17585288A JP H0224110 A JPH0224110 A JP H0224110A
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- nozzle
- seat piece
- mold
- cavity
- 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
Links
- 229920003002 synthetic resin Polymers 0.000 title claims description 12
- 239000000057 synthetic resin Substances 0.000 title claims description 12
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、合成樹脂金型とこれに組込むノズル穿設弁座
駒に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a synthetic resin mold and a nozzle drilling valve seat piece incorporated into the mold.
合成樹脂用の射出成形機は、固定盤に上金型を取付ける
一方、可動盤に下金型を取付け、上金型にノズルと連続
するスプールを形成し、スプールと上下金型間に形成し
たキャピテイの間にランナとゲートを設け、ノズルより
スプール、ランナ、ゲートを介してキャビティに溶融樹
脂を充填するのが一般的であった。近年上金型に分岐路
を設け、分岐路の先に溶融樹脂の加熱供給用ヒータポッ
トを備え、上金型にキャビティと連続するゲート口を設
け、ヒータポットに連続するゲート口より直接キャピテ
イに溶融樹脂を充填した後、ヒータポットに挿入するバ
ルブピンを降下してゲート口を塞ぎ、スプールとランデ
を省略する射出成形金型も使用されている。An injection molding machine for synthetic resin has an upper mold mounted on a fixed plate, a lower mold mounted on a movable plate, a spool connected to the nozzle formed in the upper mold, and a spool formed between the spool and the upper and lower molds. Generally, a runner and a gate are provided between the cavities, and the cavity is filled with molten resin from a nozzle through the spool, runner, and gate. In recent years, a branch path has been installed in the upper mold, a heater pot for heating and supplying molten resin is provided at the end of the branch path, and a gate port that is continuous with the cavity is provided in the upper mold, and the gate port that is continuous with the heater pot is directly connected to the cavity. Injection molding molds are also used in which after filling with molten resin, a valve pin inserted into the heater pot is lowered to close the gate opening, omitting the spool and lander.
従来技術で述べた射出成形金型の内、前者金型にあって
は、ノズルよりキャビティに充填される溶融樹脂が、ス
プールとランナ及びゲートを通って充填されるため、充
填に時間を要する問題点があると共に、−回の射出成形
毎に、スプールとランナ及びゲートも形成される問題点
があった。又後者金型にあっては、ヒータボットに連続
するゲート口よりキャビティに直接溶融樹脂を充填する
ものであるから、前者金型より樹脂の充填時間が早くな
るものの、キャビティの大きさに合せてゲート口を形成
しなければならないので、ゲート口の加工に高度の熟練
を要する問題点があると共に、ゲート口は溶融樹脂の充
填後に降下するピンによって塞がれるため、降下したピ
ンによって或は溶融樹脂に混入した異物によって損傷し
やすく、その損傷により製品不良が発生しやすくなる問
題点があった。Among the injection molds mentioned in the prior art section, the former mold has the problem that the molten resin that is filled into the cavity from the nozzle passes through the spool, runner, and gate, so it takes time for filling. In addition, there was a problem in that the spool, runner, and gate were also formed in each injection molding cycle. In addition, in the latter mold, the cavity is directly filled with molten resin from the gate opening connected to the heater bot, so the resin filling time is faster than in the former mold. Since the opening has to be formed, there is a problem that requires a high level of skill in processing the gate opening, and since the gate opening is blocked by the pin that descends after filling with molten resin, the descending pin or the molten resin There was a problem in that the product was easily damaged by foreign matter mixed into the product, and that damage was likely to cause product defects.
本発明は、従来技術の有するこのような問題点に鑑みて
なされたものであり、その目的とする所は、ヒータボッ
トに連続するゲート口より直接キャビティに溶融樹脂を
充填する金型において、ゲート口に嵌装し得るノズル穿
設弁座駒と、ノズルをキャビティの大きさに合せて、或
はノズルの損傷によって交換可能にする合成樹脂金型を
提供することにある。The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to provide a mold in which a cavity is directly filled with molten resin from a gate port connected to a heater bot. An object of the present invention is to provide a nozzle-piercing valve seat piece that can be fitted into a nozzle, and a synthetic resin mold that allows the nozzle to be replaced depending on the size of the cavity or when the nozzle is damaged.
上記目的を達成するために、本発明の合成樹脂金型は、
キャビティに連続するゲート口にノズル穿設弁座駒を嵌
装し、ヒータボットに連続する弁座駒のノズルよりキャ
ピテイに直接溶融樹脂令供給した後、ピンの降下にて弁
座駒のノズルを閉鎖するものである。In order to achieve the above object, the synthetic resin mold of the present invention has the following features:
A valve seat piece with a nozzle is inserted into the gate opening that is continuous with the cavity, and after supplying molten resin directly to the cavity from the nozzle of the valve seat piece that is continuous with the heater bot, the nozzle of the valve seat piece is closed by lowering the pin. It is.
ヒータボットに連続する弁座駒のノズルよりキャビティ
に直接溶融樹脂が供給されるので、樹脂の供給時間が短
縮される。ノズルが溶融樹脂に混入した異物、或はノズ
ルを塞ぐピンによって損傷しても、弁座駒を交換するの
みでよい。Since the molten resin is directly supplied to the cavity from the nozzle of the valve seat piece that is continuous with the heater bot, the resin supply time is shortened. Even if the nozzle is damaged by foreign matter mixed into the molten resin or by a pin blocking the nozzle, it is only necessary to replace the valve seat piece.
以下、本発明による合成樹脂金型とこれに組込む弁座駒
の構造を実施例の図面に基づき説明する。Hereinafter, the structure of a synthetic resin mold according to the present invention and a valve seat piece assembled therein will be explained based on drawings of embodiments.
図面は射出成形金型を示すもので、金型は固定盤Ａに取
付ける上金型１と、可動盤Ｂに取付ける下金型１１より
構成され、上下金型１，１１の接合部にキャビティ１０
を形成し、キャビティ１０の形成範囲内の上金型１に溶
融樹脂の加熱供給用ヒータボット２を備え、止金型１に
ヒータボット２に連通ずる分岐路９を形成している。ヒ
ータボット２は中心部に樹脂路４を貫通した本体３と、
本体３の後部に取付ける蓋体１３より構成され、本体３
の先部が先細となるようテーパを成し、蓋体１３の中心
に樹脂路４より小径のバルブピン５を往復動可能に挿通
すると共に、蓋体１３に樹脂路４と分岐路９に連通ずる
分岐管１９を設け、樹脂路４に挿入するバルブピン５は
先端部に先細の弁部５ａを有し、ヒータボット２より外
部に突出するピン５の後部にピストン１５を取付けてい
る。このピストン１５が上金型１に設けたシリンダー１
２に挿入し、空気制御により往復動可能となり、ピン５
が往復動する。The drawing shows an injection molding mold. The mold consists of an upper mold 1 attached to a fixed platen A and a lower mold 11 attached to a movable platen B. A cavity 10 is provided at the joint of the upper and lower molds 1 and 11.
A heater bot 2 for heating and supplying the molten resin is provided in the upper mold 1 within the forming range of the cavity 10, and a branch path 9 communicating with the heater bot 2 is formed in the stopper mold 1. The heater bot 2 includes a main body 3 having a resin passage 4 penetrated through the center thereof,
Consists of a lid body 13 attached to the rear of the main body 3,
A valve pin 5 having a smaller diameter than the resin passage 4 is inserted into the center of the lid body 13 so as to be reciprocally movable, and the valve pin 5 is connected to the resin passage 4 and the branch passage 9 through the lid body 13. A branch pipe 19 is provided, and a valve pin 5 inserted into the resin path 4 has a tapered valve portion 5a at its tip, and a piston 15 is attached to the rear part of the pin 5 which projects outside from the heater bot 2. This piston 15 is a cylinder 1 provided in the upper mold 1.
2, it can be reciprocated by air control, and pin 5
moves back and forth.
キャビティ１０を形成する上金型１は、キャビティ１０
に連続してゲート口８を設け、ゲート口８に弁座駒６を
嵌装する。ゲート口８はポット側に大径口８ａを、キャ
ビティ側に小径口８ｂを形成し、弁座駒６はゲート口８
の小径口８ｂに密嵌する胴部６ａの一方に、大径口８ａ
に嵌合する鍔６ｂを設け、中心部にキャビティ１０に向
けて先細となるテーパノズル７を穿設し、胴部６ａがゲ
ート口８より僅かにキャビティ１０内に突出するよう嵌
装する。ノズル７の大きさはキャビティ１０の大小や合
成樹脂の種類、或は樹脂の充填圧力等によって異なり、
且つノズル７の傾斜角θはバルブピン５の弁部５ａと一
致するように形成され、降下したピン５の弁部５ａで閉
鎖されるもので、ピン５の先端がノズル７の最小口径部
に一致するまで降下した際に、ピン弁部５ａがノズル７
に密接して閉鎖されることが望ましいが、ピン５の先端
がノズル７の最小径より多少出入りしてもよい。ゲート
口８に嵌装する弁座駒６の胴部６ａを、キャビティ１０
内に突出しないように嵌装しても同様の目的を達する。The upper mold 1 that forms the cavity 10 is
A gate port 8 is provided continuously to the gate port 8, and a valve seat piece 6 is fitted into the gate port 8. The gate port 8 has a large diameter port 8a on the pot side and a small diameter port 8b on the cavity side, and the valve seat piece 6 has a large diameter port 8a on the pot side and a small diameter port 8b on the cavity side.
A large diameter opening 8a is provided on one side of the body portion 6a that tightly fits into the small diameter opening 8b of the
A taper nozzle 7 is provided in the center to taper toward the cavity 10, and the body 6a is fitted so as to slightly protrude into the cavity 10 from the gate opening 8. The size of the nozzle 7 varies depending on the size of the cavity 10, the type of synthetic resin, the filling pressure of the resin, etc.
In addition, the inclination angle θ of the nozzle 7 is formed to match the valve portion 5a of the valve pin 5, and it is closed by the valve portion 5a of the lowered pin 5, so that the tip of the pin 5 matches the minimum diameter portion of the nozzle 7. When the pin valve part 5a descends until the nozzle 7
Although it is preferable that the nozzle 7 be closed tightly, the tip of the pin 5 may enter or exit the nozzle 7 more or less than its minimum diameter. The body 6a of the valve seat piece 6 to be fitted into the gate opening 8 is inserted into the cavity 10.
The same purpose can be achieved even if it is fitted so that it does not protrude inside.
第７図と第８図の合成樹脂金型は、ヒータポット２に穿
設する樹脂路４の先部に、バルブピン５の弁部５ａと同
じ傾斜角θの絞り部４ａを設け、上金型１のゲート口８
に嵌装する弁座駒６のノズル７を、絞り部４ａと同じ傾
斜角θで、しかも絞り部４ａに連続するように形成した
ものである。In the synthetic resin molds shown in FIGS. 7 and 8, a constricted part 4a having the same inclination angle θ as the valve part 5a of the valve pin 5 is provided at the tip of the resin passage 4 bored in the heater pot 2, and the upper mold 1 gate entrance 8
The nozzle 7 of the valve seat piece 6 to be fitted into the valve seat piece 6 is formed to have the same inclination angle θ as the constricted portion 4a and to be continuous with the constricted portion 4a.
第９図の弁座駒６は、ノズル７の上部にヒータボット２
の樹脂路４に連通ずる同径の案内路７ｂを設けたもので
ある。The valve seat piece 6 in FIG.
A guide path 7b having the same diameter and communicating with the resin path 4 is provided.
第１０図の合成樹脂金型は、上金型１に設けるゲート口
８をストレートに形成し、ゲート口８に弁座駒６の胴部
６ａを密嵌し、弁座駒６の鍔６ｂをゲート口８の口縁部
外面に当接する。In the synthetic resin mold shown in FIG. 10, the gate opening 8 provided in the upper mold 1 is formed straight, the body 6a of the valve seat piece 6 is tightly fitted into the gate opening 8, and the flange 6b of the valve seat piece 6 is inserted into the gate opening 8. It comes into contact with the outer surface of the edge of the gate 8.
第１３図の弁座駒は、キャビティ１０に向けて先細とな
るノズル７の先に逆テーパの皿ロアａを設け、ノズル７
の損傷による製品への影響を少な（する。The valve seat piece in FIG. 13 has a countersunk lower a with a reverse taper at the tip of the nozzle 7 that tapers toward the cavity 10, and the nozzle 7
Minimize the impact on the product due to damage.
第１４図（イ）（ロ）のバルブピン５は、ピン５の先部
に少し先細となる細身部５ｂを設け、該細身部５ｂの先
に弁部５ａを形成するもので、細身部５ｂの形成によっ
て樹脂路４から弁座駒ノズル７への溶融樹脂の流れが良
好になる。The valve pin 5 shown in FIGS. 14(a) and 14(b) has a slightly tapered slender portion 5b at the tip of the pin 5, and a valve portion 5a is formed at the tip of the slender portion 5b. The formation improves the flow of molten resin from the resin passage 4 to the valve seat piece nozzle 7.
本発明は、以上説明したように構成されているので、以
下に記載されるような効果を奏する。Since the present invention is configured as described above, it produces the effects described below.
キャビティに連続するゲート口にノズル穿設弁座駒を嵌
装し、ヒータポットに連続する弁座駒のノズルよりキャ
ビティに溶融樹脂を直接充填するものであるから、ノズ
ルが溶融樹脂に混入した異物やノズルに向けて往復動す
るバルブピンによって損傷しても、弁座駒のみを交換す
ればよい。即ちノズルが損傷しても金型の全部を交換す
る必要がなく、金型に嵌装した弁座駒のみを交換すれば
よいので、交換が著しく簡単容易であると共に、交換費
用も著しく安価になる。又ノズルを金型より切離した弁
座駒に穿設するものであるから、弁座駒を金型と異なる
耐熱金属や放熱しやすい金属等から形成することもでき
るし、金型に直接ノズルを形成する場合より、ノズルを
高精度に加工することもできる。A valve seat piece with a nozzle is inserted into the gate opening that is continuous with the cavity, and the cavity is directly filled with molten resin from the nozzle of the valve seat piece that is continuous with the heater pot. Even if it is damaged by the valve pin reciprocating toward the nozzle, only the valve seat piece needs to be replaced. In other words, even if the nozzle is damaged, there is no need to replace the entire mold, and only the valve seat piece fitted into the mold needs to be replaced, so replacement is extremely simple and the replacement cost is also extremely low. Become. Also, since the nozzle is drilled into the valve seat piece that is separated from the mold, the valve seat piece can be made of a heat-resistant metal different from the mold, or a metal that is easy to dissipate heat, or the nozzle can be inserted directly into the mold. It is also possible to process the nozzle with higher precision than when forming the nozzle.
特にノズル径の異なる弁座駒を選択して嵌装することが
できるので、弁座駒の交換によって溶融樹脂量も加減す
ることもできる。In particular, since valve seat pieces with different nozzle diameters can be selected and fitted, the amount of molten resin can also be adjusted by replacing the valve seat pieces.
本発明の樹脂金型とこれに組込む弁座駒は、吹込成形に
も応用し得る。The resin mold of the present invention and the valve seat piece assembled therein can also be applied to blow molding.
第１図は本発明による射出成形用樹脂金型の一部切欠側
面図、第２図は従来射出成形金型の使用例を示す一部切
欠側面図、第３図は従来射出成形金型の断面図、第４図
はヒータボットの使用例を示す要部断面図、第５図乃至
第１０図は弁座駒の使用例を示す要部断面図、第１１図
はゲート口の形状例を示す上金型の要部断面図、第１２
図は弁座駒の縦断面図、第１３図（イ）（ロ）は類例弁
座駒の縦断面図と底面図、第１４図（イ）（ロ）はバル
ブピンの正面図とその下部拡大正面図である。
１・・・上金型、２・・化−タボット、３・・・本体、
４・・・樹脂路、４ａ・・・絞り部、５・・・バルブピ
ン、５ａ・・・弁部、６・・・弁座駒、７・・・ノズル
、７ａ・・・亜目、８・・・ゲート口、９・・・分岐路
、１０・・・キャビティ、１１・・・下金型、１２・・
・シリンダー、１３・・・蓋体、１５・・・ピストン、
Ａ・・・固定盤、Ｂ・・・可動盤、Ｇ・・・ゲート、Ｒ
・・・ランす、
Ｓ・・・スプール
θ・・・ピン弁部とノズルの傾斜角、
第
図
第
図
第
図Fig. 1 is a partially cutaway side view of a resin mold for injection molding according to the present invention, Fig. 2 is a partially cutaway side view showing an example of use of a conventional injection mold, and Fig. 3 is a partially cutaway side view of a conventional injection mold. 4 is a cross-sectional view of the main part showing an example of the use of a heater bot, FIGS. 5 to 10 are cross-sectional views of the main part showing an example of the use of a valve seat piece, and FIG. Cross-sectional view of main parts of mold, 12th
The figure is a vertical cross-sectional view of the valve seat piece, Figures 13 (a) and (b) are vertical cross-sectional views and bottom views of similar valve seat pieces, and Figures 14 (a) and (b) are front views of the valve pin and an enlarged front view of its lower part. It is. 1... Upper mold, 2... conversion-tabot, 3... main body,
4... Resin path, 4a... Throttle part, 5... Valve pin, 5a... Valve part, 6... Valve seat piece, 7... Nozzle, 7a... Sub-item, 8...・Gate opening, 9 ・Branch path, 10 ・Cavity, 11 ・Lower mold, 12 ・・
・Cylinder, 13... Lid, 15... Piston,
A...Fixed plate, B...Movable plate, G...Gate, R
...Run, S...Spool θ...Inclination angle of pin valve part and nozzle, Fig. Fig. Fig.
Claims (1)
）を設け、ゲート口に弁座駒（６）を交換可能に嵌装し
、弁座駒にキャビティに向けて先細となるノズル（７）
を設け、弁座駒のノズルよりキャビティに溶融樹脂を直
接供給し得るようにすると共に、溶融樹脂の供給後、ピ
ン（５）の降下にてノズルを閉鎖する合成樹脂金型 ２、ゲート口（８）に対応する位置に溶融樹脂の加熱供
給用ヒータポット（２）を取付け、ヒータポットに挿通
するバルブピン（５）の降下により弁座駒（６）のノズ
ル（７）を閉鎖する請求項１記載の合成樹脂金型 ３、金型のゲート口（８）に密嵌可能となる胴部（６ａ
）に鍔（６ｂ）を設け、中心部にキャビティ（１０）に
向けて先細となるテーパノズル（７）を穿設し、合成樹
脂金型に組込み可能となる弁座駒[Claims] 1. The mold has a gate opening (8) that is continuous with the cavity (10).
), a valve seat piece (6) is replaceably fitted to the gate opening, and a nozzle (7) that tapers toward the cavity is attached to the valve seat piece.
is provided so that the molten resin can be directly supplied to the cavity from the nozzle of the valve seat piece, and the synthetic resin mold 2 and the gate opening (8 ) A heater pot (2) for heating and supplying the molten resin is installed at a position corresponding to the heater pot, and the nozzle (7) of the valve seat piece (6) is closed by lowering a valve pin (5) inserted into the heater pot. The synthetic resin mold 3 has a body part (6a) that can be tightly fitted into the gate opening (8) of the mold.
) is provided with a flange (6b), and a taper nozzle (7) that tapers toward the cavity (10) is bored in the center, making it possible to incorporate it into a synthetic resin mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17585288A JPH0224110A (en) | 1988-07-13 | 1988-07-13 | Mold for synthetic resin and valve seat piece to be incorporated into the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17585288A JPH0224110A (en) | 1988-07-13 | 1988-07-13 | Mold for synthetic resin and valve seat piece to be incorporated into the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2316715A Division JPH0767715B2 (en) | 1990-11-20 | 1990-11-20 | Hot runner type synthetic resin mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0224110A true JPH0224110A (en) | 1990-01-26 |
| JPH0533887B2 JPH0533887B2 (en) | 1993-05-20 |
Family
ID=16003328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17585288A Granted JPH0224110A (en) | 1988-07-13 | 1988-07-13 | Mold for synthetic resin and valve seat piece to be incorporated into the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0224110A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03162921A (en) * | 1990-11-20 | 1991-07-12 | Sansho Giken Kk | Hot runner type mold for synthetic resin |
| JPH04187415A (en) * | 1990-11-20 | 1992-07-06 | Sansho Giken Kk | Hot runner type mold for synthetic resin |
| CN108105499A (en) * | 2017-12-11 | 2018-06-01 | 中国航发沈阳发动机研究所 | A kind of exchangeable nozzle connection component |
| JP2019155663A (en) * | 2018-03-09 | 2019-09-19 | エスバンス 株式会社 | Injection molding die |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52117363A (en) * | 1976-03-25 | 1977-10-01 | Jobst U Gellert | Valveegate mechanism of injection molding |
| JPS53134860A (en) * | 1977-04-29 | 1978-11-24 | Gellert Jobst U | Valve pin of valved gating injection molder |
| JPS5946223U (en) * | 1982-09-18 | 1984-03-27 | アルプス電気株式会社 | Direct hot runner |
| JPS59150736A (en) * | 1982-12-09 | 1984-08-29 | オツト−・メナ− | Needle closing type nozzle for injection molding die |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5946223B2 (en) * | 1976-07-14 | 1984-11-10 | 三井東圧化学株式会社 | Method for producing 2-mercaptobenzimidazole |
-
1988
- 1988-07-13 JP JP17585288A patent/JPH0224110A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52117363A (en) * | 1976-03-25 | 1977-10-01 | Jobst U Gellert | Valveegate mechanism of injection molding |
| JPS53134860A (en) * | 1977-04-29 | 1978-11-24 | Gellert Jobst U | Valve pin of valved gating injection molder |
| JPS5946223U (en) * | 1982-09-18 | 1984-03-27 | アルプス電気株式会社 | Direct hot runner |
| JPS59150736A (en) * | 1982-12-09 | 1984-08-29 | オツト−・メナ− | Needle closing type nozzle for injection molding die |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03162921A (en) * | 1990-11-20 | 1991-07-12 | Sansho Giken Kk | Hot runner type mold for synthetic resin |
| JPH04187415A (en) * | 1990-11-20 | 1992-07-06 | Sansho Giken Kk | Hot runner type mold for synthetic resin |
| CN108105499A (en) * | 2017-12-11 | 2018-06-01 | 中国航发沈阳发动机研究所 | A kind of exchangeable nozzle connection component |
| CN108105499B (en) * | 2017-12-11 | 2019-08-23 | 中国航发沈阳发动机研究所 | A kind of exchangeable nozzle connection component |
| JP2019155663A (en) * | 2018-03-09 | 2019-09-19 | エスバンス 株式会社 | Injection molding die |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0533887B2 (en) | 1993-05-20 |
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