JPH0725104B2 - Plastic mold equipment - Google Patents
Plastic mold equipmentInfo
- Publication number
- JPH0725104B2 JPH0725104B2 JP57106927A JP10692782A JPH0725104B2 JP H0725104 B2 JPH0725104 B2 JP H0725104B2 JP 57106927 A JP57106927 A JP 57106927A JP 10692782 A JP10692782 A JP 10692782A JP H0725104 B2 JPH0725104 B2 JP H0725104B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- mold
- fixed
- movable
- movable side
- 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 - Lifetime
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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 本発明は、金型開閉方向に対し直角方向に動作するスラ
イドコアを有し、このスライドコアと交差して動作する
突出しピンにより成形製品の排出を行うプラスチツク金
型装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention has a plastic mold device having a slide core that operates in a direction perpendicular to the mold opening / closing direction, and ejecting a molded product by a protruding pin that operates intersecting with the slide core. Regarding
コイルボビンのようなアンダカツト形状を有するプラス
チツク製品の成形には、金型開閉方向に対し直角方向に
動作するスライドコアを持つ成形金型が使用される。For molding a plastic product having an undercut shape such as a coil bobbin, a molding die having a slide core that operates in a direction perpendicular to the opening / closing direction of the die is used.
第１図に従来のスライドコアを有するプラスチツク金型
装置の一例を示す。第１図において、１は金型の固定側
取付板、２は固定側型板、3,3′は傾斜ピン、4,4′はス
ライドコア、５はキヤビテイ、６は可動側型板、７は突
出しピン、8,9は突出し板、10は金型の可動側取付板、1
1,12は成形機の取付板、13は成形機のエジエクタロツ
ド、14は突出し板8,9とエジエクタロツド13を締結する
ボルトである。FIG. 1 shows an example of a conventional plastic mold device having a slide core. In FIG. 1, 1 is a fixed-side mounting plate of the mold, 2 is a fixed-side mold plate, 3, 3'is a tilt pin, 4, 4'is a slide core, 5 is a cavity, 6 is a movable-side mold plate, 7 Is a protruding pin, 8 and 9 are protruding plates, 10 is a movable side mounting plate of the mold, 1
1, 12 are mounting plates of the molding machine, 13 are edge rods of the molding machine, and 14 are bolts for fastening the protruding plates 8 and 9 and the edge rod 13.
動作の概要を説明し、改良すべき問題点を述べると、型
閉の時には図示のように固定側型板２に取付けられた傾
斜ピン3,3′によりスライドコア4,4′が内側に寄り、そ
の間にキヤビテイ５を形成する。型開き時には、スライ
ドコア4,4′が傾斜ピン3,3′に沿つて外側、すなわち図
の左右に開きながら可動側型板６と共に下降し、このと
き、突出しピン７は可動側型板６からスライドコア4,
4′の間に突出して成形製品を排出する。The outline of the operation is described and the problems to be improved are described. When the mold is closed, the slide cores 4 and 4'are displaced inward by the inclined pins 3 and 3'attached to the fixed side mold plate 2 as shown in the figure. In the meantime, the cavity 5 is formed. At the time of mold opening, the slide cores 4 and 4'fall along with the inclined pins 3 and 3'to the outside, that is, to the left and right in the figure, while descending together with the movable side mold plate 6, and at this time, the protruding pins 7 move the movable side mold plate 6 From slide core 4,
The molded product is ejected by projecting between 4 '.
このようなスライドコアを有する金型装置では、成形製
品の排出後、成形機が型閉め動作に移る前に突出しピン
７を可動側型板６の上面から完全に引込んだ状態に戻し
ておく必要があり、もし戻つていなければ、型閉の時に
突出しピン７がスライドコア4,4′と衝突して金型を破
損したり、ピンが折損する等の事故が発生し、また、こ
れを知らずに成形作業を続けた場合は製品の成形不良が
発生する。In the mold device having such a slide core, after ejecting the molded product, the protruding pin 7 is returned to the state of being completely retracted from the upper surface of the movable side mold plate 6 before the molding machine moves to the mold closing operation. If it is not returned, the projecting pin 7 collides with the slide cores 4 and 4'when the mold is closed, the mold is damaged, the pin is broken, and other accidents occur. If the molding operation is continued without knowing the above, defective molding of the product occurs.
このため、従来は成形機のエジエクタロツド13と突出し
板8,9をボルト14により締結し、成形機のエジエクタ動
作で突出し板8,9およびこれに保持した突出しピン７を
強制的に引き戻す方法が一般的にとられてきた。しか
し、この方法では段取り時、すなわち金型交換の都度ボ
ルト14を締めたりゆるめたりする作業が必要で、段取り
時間が長くなり、また、成形機のエジエクタロツドの位
置により、突出し板8,9の形状が市販ダイセツトに対し
て特殊形状となり、金型全体が高価なものとなつてい
た。Therefore, the conventional method is to fasten the ejector rod 13 of the molding machine and the projecting plates 8 and 9 with the bolts 14 and forcibly pull back the projecting plates 8 and 9 and the projecting pin 7 held by the ejector operation of the molding machine. Has been targeted. However, with this method, it is necessary to tighten or loosen the bolts 14 at the time of setup, that is, every time the mold is changed, and the setup time becomes long, and the shape of the protruding plates 8 and 9 depends on the edge position of the molding machine. Had a special shape with respect to the commercially available die set, and the entire die was expensive.
その代案として、突出し板の戻り動作をばねによつて行
わせ、エジエクタロツドと突出し板の締結を廃止するこ
とも考えられているが、ばねの戻し力が弱まつた場合、
突出し板の戻り動作が不完全になることが懸念され、実
用化が困難であつた。As an alternative, it is also considered that the return movement of the protruding plate is performed by a spring and the fastening of the edge plate and the protruding plate is abolished, but when the return force of the spring weakens,
There was a concern that the return movement of the protruding plate would be incomplete, making it difficult to put into practical use.
本発明は上記の事情にかんがみなされたもので、その目
的は、製品排出後何らかの原因で突出し板が完全に戻ら
ない場合でもスライドコアと突出しピンの衝突を未然に
防止でき、金型のコスト低減と段取り時間の短縮を図る
うえに有効な手段を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to prevent the slide core and the protruding pin from colliding with each other even if the protruding plate does not completely return after the product is discharged for some reason, thereby reducing the cost of the mold. And to provide an effective means for reducing the setup time.
上記目的を達成するため本発明は、成形機の固定側の取
付板に装着される固定側取付板と、この固定側取付板に
取付けられるとともにこの固定側取付板と反対側の面に
凹部を有する固定側型板と、この固定側取付板内を貫通
して設けられ凹部内に所定の角度をもって突出する傾斜
ピンと、固定側型板に対向して設けられ金型開閉方向に
移動自在に設けられた可動側型板と、固定側型板の凹部
と可動側型板の間の空間内に摺動自在に設けられてそれ
らの間にキャビティが形成される一対のスライドコア
と、可動側型板を貫通してその先端が一対のスライドコ
アの間の空間に面して型開き時にキャビティ内で成形さ
れた製品を押し出す突出しピンと、この突出しピンの基
端を保持して可動側型板とは独立して金型開閉方向に移
動自在に設けられた突出し板と、この突出し板の可動側
型板と反対側の面に面して設けられて成形機のエジェク
タロッドが貫通する開口部を有する可動側取付板を備え
たプラスチック金型装置において、突出し板を金型開方
向に付勢するばねと、可動側取付板の側端に取り付けら
れて突出し板の戻り動作完了を検知する位置検出器を備
え、一対のスライドコアは傾斜ピンと係合する斜めの貫
通穴を有して可動側型板が金型開方向に移動したとき互
いに開離する方向に摺動するよう構成され、突出し板は
エジェクタロッドが金型開方向に後退するときにばねに
より金型開方向に移動するよう付勢され、位置検出器は
突出し板がばねにより付勢されて戻り位置に復帰したと
きに成形機の型閉め動作を可能とするよう構成されたも
のであり、金型側面に設置した位置検出器により突出し
板の戻り位置への復帰を検出し、その検出信号が存在す
るときに限り成形機の型閉め動作を行わせるインタロツ
ク機能を持たせることによつて、前述したばねによる突
出し板戻し方式の欠点を補い、問題なく採用できるよう
にしたものである。In order to achieve the above object, the present invention provides a fixed side mounting plate to be mounted on a fixed side mounting plate of a molding machine, and a recess on a surface opposite to the fixed side mounting plate which is mounted on the fixed side mounting plate. The fixed-side mold plate has, the inclined pin penetrating through the fixed-side mounting plate and protruding at a predetermined angle into the recess, and the fixed-side mold plate provided so as to face the fixed-side mold plate and movable in the mold opening / closing direction. The movable side mold plate, a pair of slide cores slidably provided in the space between the concave part of the fixed side mold plate and the movable side mold plate and forming a cavity therebetween, and the movable side mold plate. Independent of the projecting pin that penetrates and the tip faces the space between the pair of slide cores to push out the molded product in the cavity when the mold is opened, and the movable side mold plate that holds the base end of this projecting pin. It was installed so that it can move freely in the mold opening and closing direction. In a plastic mold device provided with a delivery plate and a movable side mounting plate having an opening through which the ejector rod of the molding machine penetrates, which is provided facing the surface of the protruding plate opposite to the movable side mold plate, It is equipped with a spring that biases the plate in the mold opening direction and a position detector that is attached to the side end of the movable side mounting plate and that detects the completion of the return motion of the plate. The movable side mold plate is configured to slide in the direction to separate from each other when the mold plate moves in the mold opening direction, and the protruding plate is formed by the spring when the ejector rod retracts in the mold opening direction. The position detector is urged to move in the mold opening direction, and the position detector is configured to enable the mold closing operation of the molding machine when the protruding plate is urged by the spring to return to the return position. Position detection installed on the side of the mold By using the interlock function to detect the return of the protruding plate to the return position by the device and to perform the mold closing operation of the molding machine only when the detection signal is present, the above-mentioned spring-based protruding plate return method It is intended to compensate for the drawbacks of and be adopted without problems.
以下、本発明の実施例を図面を用いて説明する。Embodiments of the present invention will be described below with reference to the drawings.
第２図は本発明の一実施例図で、第１図と対応する部分
には同一符号を付し、その説明を省略する。本実施例で
は、突出し板8,9をエジエクタロツド13と締結せずに、
可動側型板６との間に挿入したばね15により突出し板8,
9の戻り動作を行わせるようにしている。すなわち、第
２図（Ａ）は、型開き時に突出し板8,9がエジエクタロ
ツド13により押され、突出しピン７を可動側型板６の上
面から突出させて製品16を押し出している状態を示し、
第２図（Ｂ）は、エジエクタロツド13の後退に伴つて突
出し板8,9がばね15により押され戻り位置に復帰した状
態を示している。FIG. 2 is an embodiment diagram of the present invention, and the portions corresponding to those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. In the present embodiment, the protruding plates 8 and 9 are not fastened to the edged rod 13,
The spring 15 inserted between the movable side mold plate 6 and the movable side mold plate 6 causes the protruding plate 8,
I'm trying to do the return action of 9. That is, FIG. 2 (A) shows a state in which the projecting plates 8 and 9 are pushed by the edge plate 13 when the mold is opened, the projecting pin 7 is projected from the upper surface of the movable side mold plate 6, and the product 16 is pushed out.
FIG. 2B shows a state in which the protruding plates 8 and 9 are pushed by the spring 15 and returned to the return position as the edge stop rod 13 moves backward.
第２図中の17は位置検出器の一例として示したリミツト
スイツチで、金型の可動側取付板10の側端に取付けられ
ている。18は突出し板９の側端にリミツトスイツチ17に
対向して取付けられた操作棒、すなわちドグである。リ
ミツトスイツチ17はコード19とプラグ20により成形機の
取付板12に設置されたコンセント21に接続され、さらに
コンセント21からコード22を介して図示しない成形機の
型閉め動作回路に接続されている。Reference numeral 17 in FIG. 2 is a limit switch shown as an example of a position detector, which is attached to the side end of the movable side mounting plate 10 of the mold. Reference numeral 18 denotes an operating rod, that is, a dog, which is attached to the side end of the projecting plate 9 so as to face the limit switch 17. The limit switch 17 is connected by a cord 19 and a plug 20 to an outlet 21 installed on a mounting plate 12 of the molding machine, and further connected from the outlet 21 via a cord 22 to a mold closing operation circuit of a molding machine (not shown).
第２図（Ｂ）に示すように突出し板8,9が戻り位置に完
全に復帰したとき、操作棒18はリミツトスイツチ17を動
作させる。これにより、リミツトスイツチ17は突出し板
の戻り動作完了を検知して成形機の型閉め動作回路に信
号を送り、型閉め動作を行わせるが、ばね15の戻し力が
弱くなつて突出し板8,9が完全に戻らなくなれば、操作
棒18はリミツトスイツチ17を動作させず、型閉の動作は
行われない。このため、スライドコア4,4′と突出しピ
ン７の衝突による金型の破損や突出しピンの折損などの
事故が発生する前に成形作業が中止され、安全性を確保
できる。As shown in FIG. 2 (B), when the projecting plates 8 and 9 are completely returned to the return positions, the operation rod 18 operates the limit switch 17. As a result, the limit switch 17 detects the completion of the returning operation of the protruding plate and sends a signal to the mold closing operation circuit of the molding machine to perform the mold closing operation, but the return force of the spring 15 is weak and the protruding plates 8 and 9 If is not completely returned, the operating rod 18 does not operate the limit switch 17 and the mold closing operation is not performed. Therefore, the molding operation is stopped before the accident such as the damage of the die or the breakage of the protruding pin due to the collision between the slide cores 4 and 4'and the protruding pin 7, and the safety can be secured.
位置検出器としては、図示のリミツトスイツチの代わり
に発光素子と受光素子を組合せた光学式検出器あるいは
磁気感応素子を用いた磁気検出器などを使用してもよ
い。As the position detector, an optical detector in which a light emitting element and a light receiving element are combined or a magnetic detector using a magnetic sensitive element may be used instead of the limit switch shown in the figure.
以上説明したように本発明によれば、何らかの原因で突
出し板が完全に戻らない場合は成形機の型閉め動作が行
なわれないので、スライドコアと突出しピンの衝突によ
る金型の破損や突出しピンの折損などの事故発生および
これに起因する成形品の不良発生を未然に防止すること
ができ、その結果、従来信頼性に問題のあつたばねによ
る突出し板戻し方式の実用化が可能となり金型のコスト
低減および段取り時間の短縮が図れるというすぐれた効
果がある。As described above, according to the present invention, the mold closing operation of the molding machine is not performed when the projecting plate does not completely return for some reason.Therefore, the mold is damaged due to the collision between the slide core and the projecting pin, and the projecting pin is prevented. It is possible to prevent the occurrence of accidents such as breakage of the product and the occurrence of defects in molded products due to this, and as a result, it is possible to put the protruding plate return method using a spring, which has been a problem with conventional reliability, into practical use. There is an excellent effect that the cost can be reduced and the setup time can be shortened.
本発明は、スライドコアと突出しピンを有する射出成形
金型その他各種のプラスチツク成形金型に適用すること
ができる。INDUSTRIAL APPLICABILITY The present invention can be applied to various molding dies including an injection molding die having a slide core and a protruding pin.
第１図はスライドコアと突出しピンを有する従来の金型
装置の断面略図、第２図は本発明による金型装置の一実
施例の断面略図で、（Ａ）は突出しピンの作動時の状態
を示し、（Ｂ）は突出しピンが戻つた状態を示す。 1:金型の固定側取付板、2:固定側型板、3,3′：傾斜ピ
ン、4,4′：スライドコア、6:可動側型板、7:突出しピ
ン、8,9:突出し板、10:金型の可動側取付板、11,12:成
形機の取付板、13:成形機のエジエクタロツド、15:突出
し板戻しばね、16:成形製品、17:位置検出器の一例であ
るリミツトスイツチ、18:操作棒。FIG. 1 is a schematic cross-sectional view of a conventional mold device having a slide core and a protruding pin, and FIG. 2 is a schematic cross-sectional view of an embodiment of the mold device according to the present invention. FIG. (B) shows a state in which the protruding pin is returned. 1: Mold fixed side mounting plate, 2: Fixed side mold plate, 3, 3 ': Inclined pin, 4, 4': Slide core, 6: Movable side mold plate, 7: Projection pin, 8, 9: Projection Plate, 10: Movable mold mounting plate, 11, 12: Molding machine mounting plate, 13: Molding machine edge rod, 15: Projecting plate return spring, 16: Molded product, 17: An example of position detector Limit switch, 18: operating rod.
Claims (1)
側取付板と、この固定側取付板に取付けられるとともに
この固定側取付板と反対側の面に凹部を有する固定側型
板と、この固定側取付板内を貫通して設けられ上記凹部
内に所定の角度をもって突出する傾斜ピンと、上記固定
側型板に対向して設けられ金型開閉方向に移動自在に設
けられた可動側型板と、上記固定側型板の凹部と上記可
動側型板の間の空間内に摺動自在に設けられてそれらの
間にキャビティが形成される一対のスライドコアと、上
記可動側型板を貫通してその先端が上記一対のスライド
コアの間の空間に面して型開き時に上記キャビティ内で
成形された製品を押し出す突出しピンと、この突出しピ
ンの基端を保持して上記可動側型板とは独立して金型開
閉方向に移動自在に設けられた突出し板と、この突出し
板の上記可動側型板と反対側の面に面して設けられて上
記成形機のエジェクタロッドが貫通する開口部を有する
可動側取付板を備えたプラスチック金型装置において、
上記突出し板を金型開方向に付勢するばねと、上記可動
側取付板の側端に取り付けられて上記突出し板の戻り動
作完了を検知する位置検出器を備え、上記一対のスライ
ドコアは上記傾斜ピンと係合する斜めの貫通穴を有して
上記可動側型板が金型開方向に移動したとき互いに開離
する方向に摺動するよう構成され、上記突出し板は上記
エジェクタロッドが金型開方向に後退するときに上記ば
ねにより金型開方向に移動するよう付勢され、上記位置
検出器は上記突出し板が上記ばねにより付勢されて戻り
位置に復帰したときに上記成形機の型閉め動作を可能と
するよう構成されたことを特徴とするプラスチック金型
装置。1. A fixed-side mounting plate to be mounted on a fixed-side mounting plate of a molding machine, and a fixed-side template mounted on the fixed-side mounting plate and having a recess on a surface opposite to the fixed-side mounting plate. And an inclined pin that penetrates through the fixed side mounting plate and projects into the recess at a predetermined angle, and a movable pin that is provided so as to face the fixed side mold plate and is movable in the mold opening / closing direction. The side mold plate, a pair of slide cores slidably provided in a space between the concave part of the fixed side mold plate and the movable side mold plate to form a cavity therebetween, and the movable side mold plate. A projecting pin that penetrates and has its tip facing the space between the pair of slide cores and that pushes out the product molded in the cavity when the mold is opened; and the movable side mold plate that holds the base end of the projecting pin. Freely movable in the mold opening / closing direction independently of A plastic metal provided with a protruding plate provided and a movable side mounting plate which is provided facing the surface of the protruding plate opposite to the movable side mold plate and has an opening through which the ejector rod of the molding machine passes. In the mold device,
A spring for urging the protruding plate in the mold opening direction, and a position detector attached to a side end of the movable side mounting plate to detect completion of the returning operation of the protruding plate, the pair of slide cores are The movable side mold plate is configured to slide in the directions in which the movable side mold plate is separated from each other when the movable side mold plate is moved in the mold opening direction, and the ejector rod is formed by the ejector rod. When retracting in the opening direction, the spring is urged to move in the mold opening direction, and the position detector uses the mold of the molding machine when the protruding plate is urged by the spring to return to the return position. A plastic mold device characterized by being configured to allow a closing operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57106927A JPH0725104B2 (en) | 1982-06-23 | 1982-06-23 | Plastic mold equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57106927A JPH0725104B2 (en) | 1982-06-23 | 1982-06-23 | Plastic mold equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58224731A JPS58224731A (en) | 1983-12-27 |
| JPH0725104B2 true JPH0725104B2 (en) | 1995-03-22 |
Family
ID=14446038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57106927A Expired - Lifetime JPH0725104B2 (en) | 1982-06-23 | 1982-06-23 | Plastic mold equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0725104B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61183621U (en) * | 1985-05-08 | 1986-11-15 | ||
| JPH0459322A (en) * | 1990-06-29 | 1992-02-26 | Seikosha Co Ltd | Injection mold device |
| JP2546534Y2 (en) * | 1995-02-17 | 1997-09-03 | セイコープレシジョン株式会社 | Cassette type injection mold equipment |
| CN103600472B (en) * | 2013-11-21 | 2015-09-02 | 浙江凯华模具有限公司 | Injection mold spring sliding block inclined is to core-pulling mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4995250U (en) * | 1972-12-08 | 1974-08-16 | ||
| JPS617059U (en) * | 1984-06-19 | 1986-01-16 | シャープ株式会社 | flexible wiring board |
-
1982
- 1982-06-23 JP JP57106927A patent/JPH0725104B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58224731A (en) | 1983-12-27 |
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