JPH0710548B2 - Hot runner type synthetic resin mold - Google Patents
Hot runner type synthetic resin moldInfo
- Publication number
- JPH0710548B2 JPH0710548B2 JP2316716A JP31671690A JPH0710548B2 JP H0710548 B2 JPH0710548 B2 JP H0710548B2 JP 2316716 A JP2316716 A JP 2316716A JP 31671690 A JP31671690 A JP 31671690A JP H0710548 B2 JPH0710548 B2 JP H0710548B2
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- gate
- synthetic resin
- seat piece
- resin mold
- 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.)
- Expired - Fee Related
Links
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
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ヒータポットを用いたホットランナ式合成樹
脂金型に関する。The present invention relates to a hot runner type synthetic resin mold using a heater pot.
合成樹脂用の射出成形機は、第２図と第３図の如く固定
盤Ａに上金型１を取付ける一方、可動盤Ｂに下金型11を
取付け、上下金型1,11間にキャビティ10を形成し、上金
型１に樹脂充填用のスプールＳとランナＲ、及びゲート
Ｇを形成し、スプールＳよりランナＲ、ゲートＧを介し
てキャビティ10に溶融樹脂を充填するのが一般的であっ
た。（例えば特開昭49-29350号公報、実開昭50-26163号
公報） 近年、肉厚が非常に薄くゲート位置に制限のある合成樹
脂製品の成形として、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、該ヒー
タポットよりゲートを介してキャビティに直接溶融樹脂
を充填し、溶融樹脂の充填後、ヒータポットに挿入する
バルブピンを降下してゲートを塞ぎ、スプールとランナ
を省略するホットランナ型式（バルブゲート型式とも称
する）も使用されるに至っている。In the injection molding machine for synthetic resin, as shown in FIGS. 2 and 3, the upper mold 1 is mounted on the fixed plate A, while the lower mold 11 is mounted on the movable plate B, and the cavity is formed between the upper and lower molds 1, 11. It is general to form a spool 10 and a runner R for filling resin and a gate G on the upper mold 1 by forming 10 and to fill the cavity 10 with molten resin from the spool S via the runner R and the gate G. Met. (For example, Japanese Patent Laid-Open No. 49-29350 and Japanese Utility Model Laid-Open No. 50-26163) In recent years, as a molding of a synthetic resin product having a very thin wall and a limited gate position, a branch path is provided in an upper mold, A heater pot for heating and supplying molten resin is provided at the end of the branch path, the molten resin is directly filled into the cavity through the gate from the heater pot, and after filling the molten resin, the valve pin inserted into the heater pot is lowered to the gate. A hot runner type (also referred to as a valve gate type) that has closed the spool and omits the spool and runner has been used.
従来技術で述べた射出成形金型の内、前者成形金型にあ
っては、ゲート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、一回の射
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。In the former molding die among the injection molding dies described in the prior art, the molten resin filled in the cavity from the gate is filled through the spool, the runner and the gate, so that the filling takes time. There is a problem that a spool, a runner, and a gate are also formed for each injection molding.
又後者金型にあっては、ヒータポットよりゲートを介し
てキャビティに直接溶融樹脂を充填するものであるか
ら、前者金型より溶融樹脂を短時間に充填し得るが、キ
ャビティの大きさに合せてゲートを形成しなければなら
ないので、ゲートの加工に高度の熟練を要する問題点が
あると共に、ゲートが溶融樹脂の通過や充填後に塞がれ
るバルブピン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。In the latter mold, since the molten resin is directly filled into the cavity from the heater pot through the gate, it is possible to fill the molten resin in a shorter time than the former mold, but according to the size of the cavity. Since it is necessary to form the gate by using the gate, there is a problem that it requires a high degree of skill in processing the gate, and the gate is easily damaged by the valve pin that is blocked after passing through or filling the molten resin, which causes product defects. There was a problem that it became easier to do.
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、ゲート口に
装着する弁座駒に温度調整部を設け、弁座駒に嵌挿する
ポット本体先部を間接的に温度調整したり、弁座駒のゲ
ートを通過する溶融樹脂の状態を微細に調整し得るよう
にしたホットランナ式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 such problems of the prior art, and an object of the present invention is to provide a temperature adjusting portion on a valve seat piece attached to a gate port, and insert the valve seat piece into the valve seat piece. It is an object of the present invention to provide a hot runner type synthetic resin mold capable of indirectly adjusting the temperature of the tip portion of the pot body and finely adjusting the state of the molten resin passing through the gate of the valve seat piece.
上記目的を達成するために、本発明のホットランナ式合
成樹脂金型は、ゲート口を大きめに、且つキャビティに
向けて順次小径と成る大径口部と中径口部、船底部、及
び小径口部より形成し、弁座駒をゲート口の中径口部に
係止する鍔と、船底部より小径口部に嵌挿する船底胴部
から形成し、その内部にポット本体先部の嵌挿部と、該
嵌挿部よりキャビティに向けて先細となるゲートを穿設
すると共に、弁座駒胴部の外周に外周向きに開口し、上
金型の水路に連通する冷却路、ヒーターの温度調整部を
設けるか、弁座駒胴部に上金型の水路に連通する冷却孔
を設けたものである。In order to achieve the above object, the hot runner type synthetic resin mold of the present invention has a large-diameter gate portion, and a large-diameter opening portion, a medium-diameter opening portion, a ship bottom portion, and a small-diameter portion that gradually decrease toward the cavity. It is formed from a mouth part, and it is formed from a collar that locks the valve seat piece to the middle diameter mouth part of the gate opening and a bottom body part that is inserted into the smaller diameter mouth part than the ship bottom part, and the inside of the pot body tip part An insertion portion and a gate that is tapered from the insertion insertion portion toward the cavity are formed, and an outer peripheral opening is formed on the outer periphery of the valve seat piece body portion. The cooling passage and the heater communicate with the water passage of the upper die. A temperature adjusting portion is provided, or a cooling hole communicating with the water passage of the upper die is provided in the body portion of the valve seat piece.
ゲート口に装着する弁座駒の胴部外周に、上金型の水路
に連通する冷却路や、ヒーターの温度調整部を設ける
か、弁座駒胴部に上金型の水路に連通する冷却孔の温度
調整部を設けたものであるから、この温度調整部によっ
て弁座駒を加温したり冷却し得る。即ち、弁座駒に嵌挿
するポット本体先部を間接的に温度調整したり、弁座駒
のゲートを通過する溶融樹脂の状態を微細に調整し得
る。On the outer periphery of the body of the valve seat piece attached to the gate port, a cooling passage communicating with the water passage of the upper die or a temperature control part of the heater is provided, or a cooling hole communicating with the water passage of the upper die on the body portion of the valve seat piece. Since the temperature adjusting section is provided, the temperature adjusting section can heat or cool the valve seat piece. That is, it is possible to indirectly adjust the temperature of the tip portion of the pot body fitted into the valve seat piece and finely adjust the state of the molten resin passing through the gate of the valve seat piece.
以下、本発明によるホットランナ式合成樹脂金型の構造
を第１図と第２図に基づき説明すると、１は射出成形機
の固定盤Ａに取付ける上金型、11は可動盤Ｂに取付ける
下金型で、上下金型1,11の接合部にキャビティ10を形成
し、具体的には上金型１を構成する第１プレート21と、
下金型11を構成する第１プレート31の間にキャビティ10
を形成し、上金型１にスプールＳと、スプールＳに連通
する分岐路９を形成すると共に、各分岐路９の先に溶融
樹脂の加熱供給用ヒータポット２を取付けている。The structure of the hot runner type synthetic resin mold according to the present invention will be described below with reference to FIGS. 1 and 2. 1 is an upper mold attached to a fixed plate A of an injection molding machine, and 11 is a lower plate attached to a movable plate B. In the mold, a cavity 10 is formed at the joint between the upper and lower molds 1 and 11, and specifically, a first plate 21 that constitutes the upper mold 1, and
The cavity 10 is provided between the first plates 31 that form the lower mold 11.
The upper mold 1 is formed with a spool S and a branch path 9 communicating with the spool S, and a heater pot 2 for heating and supplying the molten resin is attached to the tip of each branch path 9.
ヒータポット２は第４図の如く、筒状胴部3aの先部に先
細先部3bを設けたポット本体３と、該本体３の後部に取
付ける蓋体13、蓋体13の中心より本体３の中心部に設け
た樹脂路４に挿通するバルブピン５から構成され、樹脂
路４は本体３の先部3bにノズル4aを形成し、蓋体13に樹
脂路４と分岐路９に連通する分岐管9aを設け、蓋体13よ
り外部に突出するバルブピン５の後部にピストン15を取
付け、該ピストン15が上金型１に取付けるシリンダー12
に挿入し、空気制御により往復動可能となる。As shown in FIG. 4, the heater pot 2 includes a pot main body 3 having a tapered body 3b at the tip of a tubular body 3a, a lid 13 attached to the rear of the main body 3, and a main body 3 from the center of the lid 13. It is composed of a valve pin 5 that is inserted into a resin passage 4 provided in the center of the resin passage 4. The resin passage 4 has a nozzle 4a formed at a tip portion 3b of the main body 3, and a branch 13 that communicates with the resin passage 4 and the branch passage 9 in the lid 13. A cylinder 12 in which a pipe 9a is provided, a piston 15 is attached to the rear portion of the valve pin 5 protruding from the lid 13 and the piston 15 is attached to the upper mold 1.
It can be reciprocated by air control.
上金型１の第１プレート21に設けるゲート口８は、大き
めに、且つキャビティ10に向けて順次小径と成る段状に
形成され、例えば入口側に大径口部8aを、出口側に小径
口部8bを設け、大径口部8aと小径口部8bの間に、中径口
部8cと船底部8dを設け、該ゲート口８に弁座駒６を着脱
可能に装着するものである。The gate opening 8 provided in the first plate 21 of the upper mold 1 is formed in a large size and has a stepwise shape in which the diameter gradually decreases toward the cavity 10. For example, a large diameter opening 8a is provided on the inlet side and a small diameter is provided on the outlet side. A mouth portion 8b is provided, a medium diameter mouth portion 8c and a ship bottom portion 8d are provided between the large diameter mouth portion 8a and the small diameter mouth portion 8b, and the valve seat piece 6 is detachably attached to the gate mouth 8. .
弁座駒６は上記ゲート口８の中径口部8cに係止する鍔6b
と、船底部8dより小径口部8bに嵌挿する船底胴部6aから
形成され、その内部にポット本体先部3bの嵌挿部6cと、
該嵌挿部6cよりキャビティ10に向けて先細となるゲート
７を形成し、胴部6aに温度調整部20を設けるものであ
る。The valve seat piece 6 is a collar 6b which is locked to the medium diameter opening portion 8c of the gate opening 8.
And a bottom body portion 6a that is fitted and inserted into the small-diameter mouth portion 8b from the bottom portion 8d, and a fitting insertion portion 6c of the pot main body tip portion 3b therein.
The tapered gate 7 is formed from the fitting insertion portion 6c toward the cavity 10, and the temperature adjusting portion 20 is provided on the body portion 6a.
この温度調整部20は、弁座駒６の嵌挿部6cに嵌挿する本
体先部3bを間接的に温度調整したり、弁座駒６のゲート
７を通過する溶融樹脂の状態を微細に調整するものであ
る。The temperature adjusting unit 20 indirectly adjusts the temperature of the main body tip portion 3b fitted into the fitting insertion portion 6c of the valve seat piece 6, and finely adjusts the state of the molten resin passing through the gate 7 of the valve seat piece 6. To adjust.
弁座駒６に設けたゲート７は、ポット本体先部3bに設け
たノズル4aに連続し、ヒータポット２に嵌挿するバルブ
ピン５の先端部に設けた先細弁部5aに密接するよう、弁
部5aと同傾斜角度θに形成され、バルブピン５の往復動
にて開閉する。The gate 7 provided on the valve seat piece 6 is connected to the nozzle 4a provided on the tip portion 3b of the pot main body so as to be in close contact with the tapered valve portion 5a provided on the tip portion of the valve pin 5 fitted into the heater pot 2. It is formed with the same inclination angle θ as the portion 5a, and opens and closes by the reciprocating movement of the valve pin 5.
第４図と第５図の合成樹脂金型は、ゲート口８の中径口
部8cよりキャビティ10側に弁座駒６を嵌挿し、大径口部
8aに駒押板16を嵌合し、該駒押板16より第１プレート21
にボルトＮを螺入し、弁座駒６を離脱不能に装着するも
のである。In the synthetic resin molds shown in FIGS. 4 and 5, the valve seat piece 6 is inserted into the cavity 10 side from the medium diameter mouth portion 8c of the gate mouth 8 and the large diameter mouth portion is inserted.
The piece pushing plate 16 is fitted to 8a, and the first plate 21
A bolt N is screwed into and the valve seat piece 6 is attached so as not to be detachable.
第８図の合成樹脂金型は、弁座駒６の胴部6aを厚肉に
し、該胴部6aに上金型１の水路Ｗに連続する冷却孔26を
穿設し、水路Ｗより冷却孔26に冷水を循環する温度調整
部20を設けたものである。In the synthetic resin mold shown in FIG. 8, the body portion 6a of the valve seat piece 6 is made thick, and the body portion 6a is provided with a cooling hole 26 continuous with the water passage W of the upper die 1 to cool from the water passage W. A temperature adjusting section 20 for circulating cold water is provided in the hole 26.
第９図の合成樹脂金型は、弁座駒６の胴部6aを薄肉に
し、該胴部6aの外周にヒーターＨを付設し、ヒーターＨ
の温度調整部20を設けたものである。In the synthetic resin mold of FIG. 9, the body portion 6a of the valve seat piece 6 is thinned, and the heater H is attached to the outer periphery of the body portion 6a.
The temperature adjusting unit 20 is provided.
第10図の合成樹脂金型は、弁座駒６の胴部6aに外周向き
に開口する環状凹溝28を設け、該凹溝28によってゲート
口８との間に第１プレート21の水路Ｗに連続する冷却路
18を形成し、水路Ｗより冷却路18に冷水を循環する温度
調整部20を設けたものである。The synthetic resin mold shown in FIG. 10 is provided with an annular groove 28 that opens toward the outer periphery in the body portion 6a of the valve seat piece 6, and the water groove W of the first plate 21 is formed between the groove 28 and the gate port 8. Continuous cooling path
18 is formed, and a temperature adjusting unit 20 for circulating cold water from the water passage W to the cooling passage 18 is provided.
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 has the effects described below.
ゲート口に装着する弁座駒の胴部外周に、上金型の水路
に連通する冷却路や、ヒーターの温度調整部を設ける
か、弁座駒胴部に上金型の水路に連通する冷却孔の温度
調整部を設けたものであるから、この温度調整部によっ
て弁座駒を加温、又は冷却し、弁座駒の嵌挿部に嵌挿す
る本体先部を間接的に温度調整したり、弁座駒のゲート
を通過する溶融樹脂の状態を微細に調整したりし得る。On the outer periphery of the body of the valve seat piece attached to the gate port, a cooling passage communicating with the water passage of the upper die or a temperature control part of the heater is provided, or a cooling hole communicating with the water passage of the upper die on the body portion of the valve seat piece. Since the temperature adjusting unit is provided, the temperature adjusting unit heats or cools the valve seat piece, and indirectly adjusts the temperature of the main body tip portion that is inserted into the fitting insertion portion of the valve seat piece. The state of the molten resin passing through the gate of the valve seat piece can be finely adjusted.
ゲート口に装着する弁座駒が着脱可能であるから、例え
弁座駒のゲートがバルブピンの開閉によって損傷して
も、弁座駒のみを修理したり交換すればよい。即ちゲー
トが損傷しても上金型を分解する必要がなく、第１プレ
ートのみを分解すればよいので、修理交換が著しく簡単
容易になると共に、修理交換費用も著しく安価になるば
かりか、異なるゲート径の弁座駒と交換することもでき
る。Since the valve seat piece attached to the gate port is removable, even if the gate of the valve seat piece is damaged by opening and closing the valve pin, only the valve seat piece needs to be repaired or replaced. That is, even if the gate is damaged, it is not necessary to disassemble the upper mold, and only the first plate needs to be disassembled. Therefore, repair and replacement can be remarkably easy and repair and replacement costs can be significantly reduced, and also different. It can also be replaced with a valve seat piece with a gate diameter.
本発明の樹脂金型とこれに組込む弁座駒は、吸込成形に
も応用し得る。The resin mold of the present invention and the valve seat piece incorporated therein can be applied to suction molding.
第１図は本発明によるホットランナ式合成樹脂金型の一
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図はヒータポットの使用例を示す要部断面図、
第５図は弁座駒の使用例を示す要部断面図、第６図はそ
の分解縦断面図、第７図は類例弁座駒の使用例を示す要
部断面図、第８図乃至第10図は温度調整部の構造例を示
す弁座駒の断面図である。 １……上金型、２……ヒータポット、３……ポット本
体、3a……筒胴部、3b……先部、４……樹脂路、4a……
ノズル、５……バルブピン、5a……弁部、６……弁座
駒、6a……胴部、6b……鍔、6c……嵌挿部、７……ゲー
ト、８……ゲート口、8a……大径口部、8b……小径口
部、8c……中径口部、8d……船底部、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、16……駒押板、18……冷却
路、20……温度調整部、26……冷却孔、28……環状凹
溝、21,31……第１プレート、 Ａ……固定盤、Ｂ……可動盤、Ｈ……ヒーター、Ｎ……
ボルト、Ｗ……水路、Ｇ……ゲート、Ｒ……ランナ、Ｓ
……スプール、FIG. 1 is a partially cutaway side view of a hot runner type synthetic resin mold according to the present invention, FIG. 2 is a partially cutaway side view showing a usage example of a conventional injection molding mold, and FIG. 3 is a conventional injection molding mold. 4 is a cross-sectional view of a main part showing an example of use of a heater pot,
FIG. 5 is a cross-sectional view of a main part showing an example of use of a valve seat piece, FIG. 6 is an exploded vertical cross-sectional view thereof, FIG. 7 is a cross-sectional view of a main part showing an example of use of a similar type valve seat piece, and FIGS. FIG. 4 is a cross-sectional view of a valve seat piece showing a structural example of a temperature adjusting section. 1 ... Upper mold, 2 ... Heater pot, 3 ... Pot body, 3a ... Tube body, 3b ... Tip, 4 ... Resin passage, 4a.
Nozzle, 5 ... Valve pin, 5a ... Valve part, 6 ... Valve seat piece, 6a ... Body part, 6b ... Collar, 6c ... Fitting part, 7 ... Gate, 8 ... Gate port, 8a …… Large diameter mouth, 8b …… Small diameter mouth, 8c …… Medium diameter mouth, 8d …… Ship bottom, 9 …… Branch, 10
…… Cavity, 11 …… Lower mold, 12 …… Cylinder, 13
...... Lid, 15 ...... Piston, 16 ...... Piece pushing plate, 18 ...... Cooling path, 20 ...... Temperature adjusting part, 26 ...... Cooling hole, 28 ...... Annular groove, 21, 31 ...... 1st Plate, A ... Fixed plate, B ... Movable plate, H ... Heater, N ...
Bolt, W ... waterway, G ... gate, R ... runner, S
……spool,
Claims (4)
に装着し、弁座駒（６）に穿設するゲート（７）を、ヒ
ータポット（２）に挿入するバルブピン（５）の往復動
により開閉し、キャビティ（10）に溶融樹脂を直接充填
する合成樹脂金型において、ゲート口（８）を大きめ
に、且つキャビティ（10）に向けて順次小径と成る大径
口部（8a）と中径口部（8c）、船底部（8d）、及び小径
口部（8b）より形成し、弁座駒（６）をゲート口（８）
の中径口部（8c）に係止する鍔（6b）と、船底部（8d）
より小径口部（8b）に嵌挿する胴部（6a）から形成し、
その内部にポット本体先部（3b）の嵌挿部（6c）と、該
嵌挿部（6c）よりキャビティ（10）に向けて先細となる
ゲート（７）を設けると共に、弁座駒（６）の胴部（6
a）に温度調整部（20）を設けたホットランナ式合成樹
脂金型。1. A valve pin (6) in which a valve seat piece (6) is removably attached to a gate port (8), and a gate (7) formed in the valve seat piece (6) is inserted into a heater pot (2). 5) In the synthetic resin mold that opens and closes by the reciprocating motion of 5) and directly fills the molten resin into the cavity (10), the gate opening (8) is made larger and the large diameter opening is gradually reduced toward the cavity (10). It is formed from the part (8a), the medium diameter mouth (8c), the ship bottom (8d) and the small diameter mouth (8b), and the valve seat piece (6) is formed into the gate mouth (8).
Tsuba (6b) that locks to the medium diameter mouth (8c) and bottom (8d)
Formed from the body (6a) that fits into the smaller diameter mouth (8b),
A fitting insertion portion (6c) of the pot body tip portion (3b) and a gate (7) tapering toward the cavity (10) from the fitting insertion portion (6c) are provided therein, and the valve seat piece (6 ) Torso (6
Hot runner type synthetic resin mold with temperature control part (20) in a).
口する環状凹溝（28）を設け、該凹溝（28）にて上金型
（１）の水路（Ｗ）に連通する冷却路（18）の温度調整
部（20）を設けた請求項１記載のホットランナ式合成樹
脂金型。2. An annular groove (28) opening toward the outer circumference is provided on the outer periphery of the valve seat body (6a), and the water groove (W) of the upper die (1) is formed in the groove (28). The hot runner type synthetic resin mold according to claim 1, further comprising a temperature adjusting part (20) of a cooling passage (18) communicating with the mold.
（Ｗ）に連通する冷却孔（26）の温度調整部（20）を設
けた請求項１記載のホットランナ式合成樹脂金型。3. The hot runner according to claim 1, wherein the valve seat body (6a) is provided with a temperature adjusting portion (20) of a cooling hole (26) communicating with the water passage (W) of the upper die (1). Formula synthetic resin mold.
の温度調整部（20）を設けた請求項１記載のホットラン
ナ式合成樹脂金型。4. A heater (H) is provided on the outer periphery of the valve seat body (6a).
The hot runner type synthetic resin mold according to claim 1, wherein the temperature adjusting part (20) is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2316716A JPH0710548B2 (en) | 1990-11-20 | 1990-11-20 | Hot runner type synthetic resin mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2316716A JPH0710548B2 (en) | 1990-11-20 | 1990-11-20 | Hot runner type synthetic resin mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04187415A JPH04187415A (en) | 1992-07-06 |
| JPH0710548B2 true JPH0710548B2 (en) | 1995-02-08 |
Family
ID=18080108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2316716A Expired - Fee Related JPH0710548B2 (en) | 1990-11-20 | 1990-11-20 | Hot runner type synthetic resin mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0710548B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011020337A (en) * | 2009-07-15 | 2011-02-03 | Seiki Corp | Closed type cooling bush in injection molding machine |
| JP5587631B2 (en) * | 2010-02-10 | 2014-09-10 | 富士フイルム株式会社 | Injection mold and injection molding method |
| JP6014874B2 (en) * | 2012-07-17 | 2016-10-26 | パンチ工業株式会社 | Preform molding mold and preform cooling method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6392715U (en) * | 1986-12-05 | 1988-06-15 | ||
| JPS63236615A (en) * | 1987-03-26 | 1988-10-03 | Sanri Kk | Method and apparatus for runnerless injection molding of synthetic resin by means of intermittent cooling |
| JPS6451921A (en) * | 1987-08-21 | 1989-02-28 | Polyplastics Co | Injection molding method for thermoplastic resin |
| JPH0224110A (en) * | 1988-07-13 | 1990-01-26 | Sansho Giken Kk | Mold for synthetic resin and valve seat piece to be incorporated into the same |
-
1990
- 1990-11-20 JP JP2316716A patent/JPH0710548B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04187415A (en) | 1992-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |