JPH10623A - Lock device of mold - Google Patents
Lock device of moldInfo
- Publication number
- JPH10623A JPH10623A JP15077996A JP15077996A JPH10623A JP H10623 A JPH10623 A JP H10623A JP 15077996 A JP15077996 A JP 15077996A JP 15077996 A JP15077996 A JP 15077996A JP H10623 A JPH10623 A JP H10623A
- Authority
- JP
- Japan
- Prior art keywords
- claw
- projection
- mold
- center
- shaft
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は合成樹脂の成形等に
使用する金型のロック装置、更に詳細にはスリープレー
ト金型において型開き時にパーティングを完全にロック
する金型のロック装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold locking device used for molding a synthetic resin and the like, and more particularly to a mold locking device for completely locking a parting when a mold is opened in a sleep rate mold.
【0002】[0002]
【従来の技術】モールド時に金型が合成樹脂の圧入によ
り浮上しないように金型をロックすることは周知であ
る。また成形品にアンダーカット面を形成するための入
り子(スライドコア)を用いた所謂スリープレート金型
においてはその入り子が金型より脱出する迄は金型すな
わち各金型の固定側板と可動側板すなわちパーティング
を完全にロックする必要がある。このため本願発明者は
既に実公平1−23774号を考案した。この実公平1
−23774号に記載の従来の金型は一対の開閉金型の
一方に下端が膨らんだ挿入部、他方にその挿入部を挟持
する一対の爪を設け、ロックバーを一対の爪の間に挿入
して、一対の爪を開かないようにロックしていた。しか
しこれでは一対の爪を要するので装置が大型になり、ま
たレリースバーでロックバーを引っ張る際、レリースバ
ーとロックバーの係合突起との係合時に衝撃を生ずると
共に係合突起が破損する欠点がある。このため従来図
6,7,8,9示のようなロック装置を用いていた。こ
れは一対の開閉金型1、2の一方に突起1a、他方にそ
の突起1aに係合する爪2aを軸2bにより枢着し、こ
の爪2aはスプリング2cにより外れる方向に弾撥し、
その爪2aの外側に図6示のようにロックバー7を爪2
aが外れないようにロックしていた。2. Description of the Related Art It is well known that a mold is locked so that the mold does not float due to press-fit of a synthetic resin during molding. In a so-called sleep rate mold using a nest (slide core) for forming an undercut surface on a molded product, the mold, that is, a fixed side plate of each mold, and a movable plate are movable until the nest escapes from the mold. The side plate or parting must be completely locked. For this reason, the present inventor has already devised Japanese Utility Model Publication No. 23774. This real fairness 1
In the conventional mold described in Japanese Patent No. 23774, one of a pair of opening / closing dies is provided with an insertion portion whose lower end is swelled, and the other is provided with a pair of claws for sandwiching the insertion portion, and a lock bar is inserted between the pair of claws. Then, the pair of claws were locked so as not to open. However, this requires a pair of claws, so that the device becomes large. Further, when the release bar is pulled by the release bar, an impact is generated when the release bar and the engagement protrusion of the lock bar are engaged, and the engagement protrusion is damaged. . Therefore, a lock device as shown in FIGS. 6, 7, 8, and 9 has been conventionally used. In this method, a projection 1a is pivotally mounted on one of the pair of opening and closing molds 1 and 2 by a shaft 2b, and a claw 2a engaging with the projection 1a is resiliently repelled by a spring 2c.
As shown in FIG. 6, a lock bar 7 is attached to the outside of the claw 2a.
a was locked so that it did not come off.
【0003】[0003]
【発明が解決しようとする課題】しかしこのロック装置
ではロックバー7がないと図8,9示のようにスプリン
グ2cによりロックが外れると共に逆にスプリング2c
の力が弱いとロックが外れ難くなる欠点がある。またそ
の突起1aは爪2aと係合離脱するため、痛み易く、更
にその係合面は爪2aの軸2bよりずれているのでロッ
ク時に係合面が滑ってロックが外れ易く、ガタを生じて
成形品や、入り子を傷めたりし、或いは係合面が噛み合
ってロックが外れ難くなる欠点がある。However, in this lock device, if the lock bar 7 is not provided, the lock is released by the spring 2c as shown in FIGS.
If the force is weak, there is a disadvantage that the lock is hard to be released. Further, the projection 1a is easily disengaged from the claw 2a, so that the engagement surface is displaced from the shaft 2b of the claw 2a. There is a disadvantage that the molded product or the nest is damaged, or the engagement surfaces are engaged with each other, so that the lock is hardly released.
【0004】[0004]
【課題を解決するための手段】本発明はかかる欠点を除
去するもので、一対の開閉する金型1、2の一方にコ字
型の突起1a、他方にその突起1aに係合する爪2aを
コ字型の支持部2dに軸2bにより枢着し、この爪2a
はスプリング2fにより突起1aと係合する方向に弾撥
し、レリースバー5は上記開閉金型1、2のコ字型の突
起1aと支持部2d内に入る大きさで上記爪2aの斜面
2gと係合するカム5aを設けてなる金型のロック装置
である。また上記突起1aと爪2aとの係合面は誤差が
3/100以下の高精度にすると共に、爪2aの軸2bの
中心は突起1aと爪2aとの係合面の中心の略垂直線上
にあるようにしたものである。SUMMARY OF THE INVENTION The present invention is intended to eliminate such a drawback. One of a pair of molds 1 and 2 which can be opened and closed is a U-shaped projection 1a, and the other is a claw 2a engaged with the projection 1a. Is pivotally connected to a U-shaped support portion 2d by a shaft 2b.
Is repelled by a spring 2f in the direction of engagement with the projection 1a, and the release bar 5 is large enough to fit in the U-shaped projection 1a of the opening / closing dies 1 and 2 and the support portion 2d, and the release bar 5 This is a mold locking device provided with an engaging cam 5a. The engagement surface between the projection 1a and the claw 2a has a high accuracy of 3/100 or less in error, and the center of the shaft 2b of the claw 2a is substantially perpendicular to the center of the engagement surface between the projection 1a and the claw 2a. As in
【0005】[0005]
【発明の実施の形態】以下図面につき本発明の実施の形
態を詳細に説明する。図1,2,3,4,5は本発明の
第1の一実施の形態を示すもので、図1は本発明の第1
の実施の形態のケースの端面図、図2は本発明を適用し
た成形機の全体の型締め状態の側面図、図3はその要部
の拡大側面図、図4はその型開き状態の要部の拡大側面
図、図5はその要部の斜視図である。図2示のように成
形機10は溶融合成樹脂の押出機11を有し、その先に
後方に向かって固定側取着板3、それに固定したランナ
ストリッパー4、一対の開閉する金型2,1、受け板6
を順次有する。図示のものは金型1,2に電話受話器を
成形する型(キャビテイー)を設けた例であるが、これ
に限られない。12は溶融合成樹脂の通路(ランナ)
で、金型2にはアンダーカットを形成するための入り子
2X(スライドコア)がある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1, 2, 3, 4, and 5 show a first embodiment of the present invention, and FIG. 1 shows a first embodiment of the present invention.
FIG. 2 is a side view of the entire molding machine to which the present invention is applied in a mold clamped state, FIG. 3 is an enlarged side view of a main part thereof, and FIG. FIG. 5 is an enlarged side view of the part, and FIG. As shown in FIG. 2, the molding machine 10 has a molten synthetic resin extruder 11, and a fixed-side mounting plate 3, a runner stripper 4 fixed to the fixed-side mounting plate 3, and a pair of openable and closable dies 2. 1. Backing plate 6
Are sequentially provided. The illustrated one is an example in which a mold (cavity) for molding a telephone handset is provided in the dies 1 and 2, but the invention is not limited to this. 12 is a passage (runner) for the molten synthetic resin.
The mold 2 has a nest 2X (slide core) for forming an undercut.
【0006】上記金型1、2の一方の雌型を有する可動
の金型1にはコ字型の突起1aの両脚部をボルト1b,
1bにより取付け、他方の従動の雄型を有する金型2の
対向位置にはコ字型の支持部2dの両脚部をボルト2
e,2eにより取付け、この支持部2d内には前記突起
1aに係合する爪2aを軸2bにより枢着し、この爪2
aはスプリング2fにより係合する方向すなわち図5に
おいて下方に弾撥する。上記突起1aと爪2aとの係合
面は誤差が3/100以下の高精度にすると共にその爪
2aの軸2bの中心は略突起1aと爪2aとの係合面の
中心の垂直線上にあるようにする。前記突起1aの上前
部には斜面1cを設け、爪2aの下面前部にはその斜面
1cと一部が密着する斜面2gを設ける。この斜面2g
の後部は斜め下方向に傾斜し、またこの斜面2gの前部
は斜め上方向に傾斜する。上記開閉金型1、2の前方の
固定側取着板3に固定したランナストリッパー4には後
方にすなわち図2,3,4において左方に延びるレリー
スバー5をボルト5bにより固定し、このレリースバー
5は上記開閉金型1、2のコ字型の突起1aと支持部2
d内に入る大きさでその後端上部には上記斜面2gと係
合するカム5aを設ける。A movable mold 1 having one of the female dies 1 and 2 has two legs of a U-shaped protrusion 1a with bolts 1b and
1b, and the two legs of the U-shaped support portion 2d are bolted to the opposite position of the mold 2 having the other driven male mold.
e, 2e, and a pawl 2a engaging with the projection 1a is pivotally mounted in the support portion 2d by a shaft 2b.
a is repelled in the direction of engagement by the spring 2f, that is, downward in FIG. The engagement surface between the protrusion 1a and the claw 2a has a high accuracy of error of 3/100 or less, and the center of the shaft 2b of the claw 2a is substantially on the vertical line of the center of the engagement surface between the protrusion 1a and the claw 2a. To be there. An inclined surface 1c is provided at an upper front portion of the projection 1a, and an inclined surface 2g is provided at a front lower portion of the claw 2a so as to be partially adhered to the inclined surface 1c. 2g of this slope
The rear part is inclined obliquely downward, and the front part of the slope 2g is inclined obliquely upward. A release bar 5 extending rearward, that is, to the left in FIGS. 2, 3, and 4 is fixed to a runner stripper 4 fixed to a fixed-side mounting plate 3 in front of the opening and closing dies 1 and 2 by bolts 5b. Are the U-shaped protrusions 1a of the opening / closing dies 1 and 2 and the supporting portions 2
A cam 5a is provided at the upper rear end of the cam 5a so as to engage with the slope 2g.
【0007】次にこの装置の動作を説明する。図4示の
型開き状態ではカム5aが斜面2gの前部に係合し、爪
2aは突起1aより外れている。この状態より型締めす
るときは可動の金型1が前方すなわち図4において右方
に作動する。これによって従動の金型2は前方に押さ
れ、爪2aの斜面2gはカム5aより外れ、スプリング
2fにより爪2aは突起1aに係合し、図2,3示の型
締め状態でロックされた状態となる。この状態で成形を
行う。而して上記突起1aと爪2aとの係合面は3/1
00以下の高精度にしているので、ロックにガタがな
く、従ってその突起1aは痛み難く、成形品や、入り子
を傷めたり、或いは係合面が噛み合ってロックが外れ難
くなることがない。また爪2aの軸2bの中心は突起1
aと爪2aとの係合面の中心の垂直線上にあるようにし
ているので、強い力が作用しても爪2aは突起1aより
外れることがないものである。Next, the operation of this device will be described. In the mold open state shown in FIG. 4, the cam 5a is engaged with the front portion of the slope 2g, and the claw 2a is disengaged from the projection 1a. When the mold is clamped from this state, the movable mold 1 operates forward, that is, to the right in FIG. As a result, the driven mold 2 is pushed forward, the slope 2g of the claw 2a is disengaged from the cam 5a, and the claw 2a is engaged with the projection 1a by the spring 2f, and is locked in the mold-clamped state shown in FIGS. State. The molding is performed in this state. Thus, the engagement surface between the projection 1a and the claw 2a is 3/1.
Since the precision is set to 00 or less, there is no backlash in the lock. Therefore, the protrusion 1a is hard to be painful, and the molded product, the nesting member is not damaged, or the lock does not become difficult to be disengaged due to the engagement of the engaging surfaces. The center of the shaft 2b of the claw 2a is the protrusion 1
The projection 2 is located on the vertical line at the center of the engagement surface between the projection 2a and the projection 2a.
【0008】次に図2,3示の型締め状態より図4示の
型開き状態に戻る時は、先ず開閉金型1、2が後方に作
動し、金型2とランナストリッパー4間が開き、ランナ
が成形品より分離し、同時に入り子2xが側方に抜け
る。またランナストリッパー4も固定側取着板3より僅
かに後方に作動し、ランナロックピンがランナストリッ
パー4の後面に付着しているランナより抜けて、ランナ
が後方に落下する。かくして爪2aの斜面2gがカム5
aに係合した時に爪2aはスプリング2fの弾力に抗し
て上方向に回動し、爪2aは突起1aより外れ、ロック
は解除される。次に金型1、2間が開き、成形品が取り
出される。Next, when returning from the mold-clamped state shown in FIGS. 2 and 3 to the mold-opened state shown in FIG. 4, first, the opening and closing molds 1 and 2 are operated backward, and the space between the mold 2 and the runner stripper 4 is opened. , The runner separates from the molded product, and at the same time, the nest 2x comes off to the side. The runner stripper 4 also operates slightly behind the fixed-side mounting plate 3, and the runner lock pin comes off from the runner attached to the rear surface of the runner stripper 4, and the runner drops rearward. Thus, the slope 2g of the claw 2a is
When engaged with a, the claw 2a rotates upward against the elasticity of the spring 2f, the claw 2a comes off the projection 1a, and the lock is released. Next, the space between the molds 1 and 2 is opened, and the molded product is taken out.
【0009】[0009]
【発明の効果】以上のように本発明によれば爪2aの構
造は簡単であるから、小型且つ安価に提供出来ると共
に、この爪2aはスプリング2fにより突起1aと係合
する方向に弾撥しているので、ロックは確実であり、ま
た爪2aの斜面2gにカム5aが係合してロックは解除
されるので、衝撃を生ぜずに確実にロックは解除される
と共に破損することがないものである。また本発明では
上記突起1aと爪2aとの係合面は3/100以下の面
精度にしているので、ロックにガタがなく、従ってその
突起1aは痛み難く、成形品や、入り子を傷めたり、或
いは係合面が噛み合ってロックが外れ難くなることがな
い。また爪2aの軸2bの中心は突起1aと爪2aとの
係合面の中心の垂直線上にあるようにしているので、強
い力が作用しても爪2aは突起1aより外れることがな
いものである。As described above, according to the present invention, since the structure of the claw 2a is simple, the claw 2a can be provided in a small size and at a low cost, and the claw 2a is repelled by the spring 2f in the direction of engaging with the projection 1a. The lock is released, and the cam 5a is engaged with the slope 2g of the claw 2a to release the lock, so that the lock is released without any impact and is not damaged. It is. Further, in the present invention, since the engagement surface between the projection 1a and the claw 2a has a surface accuracy of 3/100 or less, there is no backlash in the lock. Therefore, the projection 1a is hardly painful and damages the molded product and the nest. There is no possibility that the lock will not come off easily due to the engagement or engagement of the engagement surfaces. Also, since the center of the shaft 2b of the claw 2a is on the vertical line of the center of the engagement surface between the protrusion 1a and the claw 2a, the claw 2a does not come off from the protrusion 1a even when a strong force acts. It is.
【図1】本発明の第1の実施の形態のケースの端面図で
ある。FIG. 1 is an end view of a case according to a first embodiment of the present invention.
【図2】その型締め状態の全体の縦断側面図である。FIG. 2 is an overall longitudinal side view of the mold-clamped state.
【図3】その要部の拡大側面図である。FIG. 3 is an enlarged side view of the main part.
【図4】その型開き状態の側面図である。FIG. 4 is a side view of the mold open state.
【図5】その要部の斜視図である。FIG. 5 is a perspective view of a main part thereof.
【図6】従来の装置の型閉状態の側面図である。FIG. 6 is a side view of a conventional device in a mold closed state.
【図7】その型開き途中の状態の側面図である。FIG. 7 is a side view of the mold during opening.
【図8】その型開き寸前の状態の側面図である。FIG. 8 is a side view of the state just before the mold opening.
【図9】その型開き状態の側面図である。FIG. 9 is a side view of the mold open state.
1、2 金型 1a コ字型の突起 2a 爪 2b 軸 2d 支持部 2f スプリング 2g 斜面 5 レリースバー 5a カム 1, 2 Mold 1a U-shaped protrusion 2a Claw 2b Shaft 2d Support 2f Spring 2g Slope 5 Release bar 5a Cam
Claims (2)
起、他方にその突起に係合する爪をコ字型の支持部に軸
により枢着し、この爪はスプリングにより突起と係合す
る方向に弾撥し、レリースバーは上記開閉金型のコ字型
の突起と支持部内に入る大きさで上記爪の斜面と係合す
るカムを設けてなる金型のロック装置。1. A U-shaped projection on one side of a pair of molds to be opened and closed, and a claw engaging with the projection on the other side are pivotally connected to a U-shaped support portion by a shaft. A mold locking device that repels in a direction of engagement, and has a release bar with a U-shaped projection of the opening and closing mold and a cam that engages with a slope of the claw and is large enough to enter the support portion.
00以下の高精度にすると共に、爪の軸の中心は突起と
爪との係合面の中心の略垂直線上にあるようにした請求
項1記載の金型のロック装置。2. The error between the engaging surface of the projection and the claw is 3/1.
2. The mold locking device according to claim 1, wherein the center of the axis of the claw is substantially perpendicular to the center of the engaging surface between the projection and the claw, with a high precision of not more than 00.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08150779A JP3078494B2 (en) | 1996-06-12 | 1996-06-12 | Mold locking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP08150779A JP3078494B2 (en) | 1996-06-12 | 1996-06-12 | Mold locking device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10623A true JPH10623A (en) | 1998-01-06 |
JP3078494B2 JP3078494B2 (en) | 2000-08-21 |
Family
ID=15504256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP08150779A Expired - Fee Related JP3078494B2 (en) | 1996-06-12 | 1996-06-12 | Mold locking device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3078494B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004074612A (en) * | 2002-08-20 | 2004-03-11 | Riken Technos Corp | Injection-molding die device |
JP2010184352A (en) * | 2009-02-10 | 2010-08-26 | Ikegami Kanagata Kogyo Kk | Apparatus for opening/closing metallic mold |
CN103802276A (en) * | 2012-11-14 | 2014-05-21 | 汉达精密电子(昆山)有限公司 | Cavity plate positioning mechanism |
KR101491737B1 (en) * | 2013-07-23 | 2015-02-11 | 주식회사 한라캐스트 | Mold apparatus |
CN105414318A (en) * | 2015-12-11 | 2016-03-23 | 上海华世邦模具科技股份有限公司 | Mold base for pinhole mold |
WO2017037893A1 (en) * | 2015-09-02 | 2017-03-09 | 有限会社アイユーキ技研 | Parting lock device and injection molding mold using same |
JP6746828B1 (en) * | 2019-06-14 | 2020-08-26 | 有限会社アイユーキ技研 | Parting lock device and injection mold assembly using the same |
WO2020250456A1 (en) * | 2019-06-14 | 2020-12-17 | 有限会社アイユーキ技研 | Parting lock device and injection mold assembly using same |
-
1996
- 1996-06-12 JP JP08150779A patent/JP3078494B2/en not_active Expired - Fee Related
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004074612A (en) * | 2002-08-20 | 2004-03-11 | Riken Technos Corp | Injection-molding die device |
JP2010184352A (en) * | 2009-02-10 | 2010-08-26 | Ikegami Kanagata Kogyo Kk | Apparatus for opening/closing metallic mold |
CN103802276A (en) * | 2012-11-14 | 2014-05-21 | 汉达精密电子(昆山)有限公司 | Cavity plate positioning mechanism |
KR101491737B1 (en) * | 2013-07-23 | 2015-02-11 | 주식회사 한라캐스트 | Mold apparatus |
WO2017037893A1 (en) * | 2015-09-02 | 2017-03-09 | 有限会社アイユーキ技研 | Parting lock device and injection molding mold using same |
JPWO2017037893A1 (en) * | 2015-09-02 | 2018-06-14 | 有限会社アイユーキ技研 | Parting lock device and injection mold using it |
US10300646B2 (en) | 2015-09-02 | 2019-05-28 | Aiyuki Giken Co., Ltd. | Parting locking device and injection molding mold assembly using same |
CN105414318A (en) * | 2015-12-11 | 2016-03-23 | 上海华世邦模具科技股份有限公司 | Mold base for pinhole mold |
JP6746828B1 (en) * | 2019-06-14 | 2020-08-26 | 有限会社アイユーキ技研 | Parting lock device and injection mold assembly using the same |
WO2020250456A1 (en) * | 2019-06-14 | 2020-12-17 | 有限会社アイユーキ技研 | Parting lock device and injection mold assembly using same |
US11806906B2 (en) | 2019-06-14 | 2023-11-07 | Aiyuki Giken Co., Ltd. | Parting lock device and injection molding mold assembly using same |
Also Published As
Publication number | Publication date |
---|---|
JP3078494B2 (en) | 2000-08-21 |
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