JP2007098957A - Apparatus for extruding molded article in mold - Google Patents

Apparatus for extruding molded article in mold Download PDF

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Publication number
JP2007098957A
JP2007098957A JP2006335646A JP2006335646A JP2007098957A JP 2007098957 A JP2007098957 A JP 2007098957A JP 2006335646 A JP2006335646 A JP 2006335646A JP 2006335646 A JP2006335646 A JP 2006335646A JP 2007098957 A JP2007098957 A JP 2007098957A
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ejector pin
joint
cylinder unit
mold
rotation
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JP4450823B2 (en
Inventor
Tetsuaki Aoki
哲秋 青木
Masaaki Matsuda
政明 松田
Hiroyuki Shimizu
浩幸 清水
Kazunori Sakamoto
和典 坂本
Masataka Ogawa
雅敬 小河
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus which allows the easy exchange of an ejector pin, and prevents adverse effects to a molded article caused by a rotation stopping mechanism for the ejector pin, in an extruding apparatus for the molded article, which protrudes the ejector pin in two stages by means of a cylinder unit mounted on an extruding plate. <P>SOLUTION: A cylinder rod 4q of an air cylinder unit 4 is disenabled of rotation by attaching the air cylinder unit 4 to an extruding A plate 1, and by concurrently connecting the cylinder rod 4q with an rear anchor of a first ejector pin 6 at a joint 5. Thereby the joint 5 and the cylinder rod 4q are disenabled of relative rotation by a rotation stopper screw 11, and the joint 5 and the first ejector pin 6 are disenabled of relative rotation by a rotation stopper screw 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、例えば射出成形金型で成形した成形品を取り出すための押出し装置に関する。   The present invention relates to an extrusion apparatus for taking out a molded product molded by, for example, an injection mold.

従来、例えば射出成形金型で射出成形した成形品を取り出すための押出し装置として、図4に示すような装置が知られている。
この装置は、ロッド棒51の突出し操作によってストロークL1分前進する押出しA板52及び押出しB板53の2枚の押出し板と、押出しA板52に取付けられ且つ先端部が可動型57を通してキャビティ面に臨んで成形品Wに当接する押出しピン54と、押出しB板53に六角ボルト55で取付けられるエアシリンダユニット56を備えており、このエアシリンダユニット56のピストン56pから延出するピン56qの先端が可動型57を通してキャビティ面に臨んで成形品Wに当接している。
Conventionally, an apparatus as shown in FIG. 4 is known as an extrusion apparatus for taking out a molded product injection-molded by, for example, an injection mold.
This apparatus has two extrusion plates, an extrusion A plate 52 and an extrusion B plate 53, which are moved forward by a stroke L1 by the rod rod 51 protruding operation, and the extrusion A plate 52, and the tip is attached to the cavity surface through the movable die 57. And an air cylinder unit 56 attached to the extruded B plate 53 with a hexagon bolt 55, and the tip of a pin 56q extending from the piston 56p of the air cylinder unit 56. Faces the cavity surface through the movable mold 57 and is in contact with the molded product W.

そしてこのエアシリンダユニット56のシリンダ56s内にエア導入孔aからエアが導入されると、ピストン56pがストロークL2分前進し、成形品Wを確実に離型させるようにしている。
また、ピン56qの回転を防止するため、可動型57のキャビティ面側に入れ駒58を設置しており、ピン56q先端側の外周面の一部に形成される平坦な係合面に係合させている。
When air is introduced from the air introduction hole a into the cylinder 56s of the air cylinder unit 56, the piston 56p moves forward by the stroke L2, and the molded product W is reliably released.
Further, in order to prevent the rotation of the pin 56q, the insertion piece 58 is provided on the cavity surface side of the movable mold 57, and engages with a flat engagement surface formed on a part of the outer peripheral surface on the tip end side of the pin 56q. I am letting.

ところが上記のような押出し装置の場合、エアシリンダユニット56が金型専用の製作部品であるため、製作コストが高くなり、またピン56qが破損したような時は、ピストン56pも含んで交換しなければならないため、製作工数と製作コストがかかるという問題がある。
また、シリンダ56sが押出しB板53に固定され且つピン56qが可動型57を挿通しているため、エアシリンダユニット56を取外そうとすると、可動型全体を解体しなければならず、メインテナンス性が良くない。
更に、ピン56qの回り止めの入れ駒58をキャビティに面する部分に設けているため、ピン56q先端の係合面と入れ駒58の間にバリが生じたり、またはカジリを生じやすい。
However, in the case of the extrusion apparatus as described above, since the air cylinder unit 56 is a manufacturing part dedicated to the mold, the manufacturing cost increases, and when the pin 56q is damaged, the piston 56p must be replaced and replaced. Therefore, there is a problem that it takes man-hours and costs.
Further, since the cylinder 56s is fixed to the extruded B plate 53 and the pin 56q is inserted through the movable mold 57, when the air cylinder unit 56 is to be removed, the entire movable mold must be disassembled, and the maintenance property is maintained. Is not good.
Further, since the insertion piece 58 for preventing the rotation of the pin 56q is provided in the portion facing the cavity, a burr is easily generated between the engagement surface at the tip of the pin 56q and the insertion piece 58, or galling is likely to occur.

本発明は上記問題点に鑑みなされたものであり、エアシリンダユニットを安価に構成すると同時に、ピンが破損したような時でも簡単に処置することが出来、またエアシリンダユニットを取外すような際でも手間がかからず、更に回り止めによってバリとかカジリが生じることのない成形品押出し装置の提供を目的とする。   The present invention has been made in view of the above-mentioned problems. At the same time, the air cylinder unit can be constructed at a low cost, and at the same time, even when the pin is broken, it can be easily treated, and even when the air cylinder unit is removed. An object of the present invention is to provide an apparatus for extruding a molded product that does not require time and does not cause burrs or galling due to rotation prevention.

上記目的を達成するため本発明は、請求項1において、金型の押出し板に取付けられるシリンダユニットと、このシリンダユニットの作動で前記押出し板の移動方向に沿って進退動するエジェクタピンを備えた金型の成形品押出し装置であって、前記シリンダユニットのロッド先端部にはジョイントが回転不能に取付けられ、このジョイントには溝が形成され、この溝にエジェクタピンの基端大径部がスライド嵌合し、このスライド嵌合した状態の前記大径部の切欠き部にネジを係合せしめてなり、エジェクタピンを交換する際には、前記押出し板を外すことなく、前記ネジを外してエジェクタピンの基端大径部を前記溝から引き抜くようにした。   To achieve the above object, according to the present invention, in claim 1, there is provided a cylinder unit attached to the extrusion plate of the mold, and an ejector pin that moves forward and backward along the moving direction of the extrusion plate by the operation of the cylinder unit. This is an apparatus for extruding a molded product of a mold, and a joint is non-rotatably attached to the tip of the rod of the cylinder unit, and a groove is formed in the joint, and the base end large diameter portion of the ejector pin slides in the groove. When the ejector pin is replaced, the screw is removed without removing the pusher plate, and the ejector is ejected. The base end large-diameter portion of the pin was pulled out from the groove.

このようにシリンダユニットとエジェクタピンの基端部をジョイントで連結すれば、例えばシリンダユニットとして一般的なタイプの市販のものでも使用することが出来、またエジェクタピンが破損した時でも、ジョイントを外せば市販のエジェクタピンを使用することが可能となる。
更に、ジョイントを外すことで、シリンダユニットの取外しが容易となり、メインテナンス性が向上する。
By connecting the base end of the cylinder unit and ejector pin with a joint in this way, for example, a general type of cylinder unit can be used, and even if the ejector pin is damaged, the joint can be removed. For example, a commercially available ejector pin can be used.
Further, by removing the joint, it becomes easy to remove the cylinder unit, and maintenance is improved.

以上のように本発明に係る金型の成形品押出し装置は、請求項1のように、金型の押出し板に取付けられるシリンダユニットと、エジェクタピンの基端部をジョイントによって連結するようにしたため、例えばシリンダユニットとして市販タイプのものでも使用することが出来、またエジェクタピンが破損した時でも、ジョイントを外せば市販のエジェクタピンを使用することが可能となる。
更に、ジョイントを外すことで、シリンダユニットの取外しが容易となり、メインテナンス性が向上する。
As described above, in the molded product extrusion apparatus according to the present invention, the cylinder unit attached to the extrusion plate of the mold and the base end portion of the ejector pin are connected by the joint as in claim 1. For example, a commercially available cylinder unit can be used, and even when the ejector pin is damaged, it is possible to use a commercially available ejector pin by removing the joint.
Further, by removing the joint, it becomes easy to remove the cylinder unit, and maintenance is improved.

本発明の実施の形態について添付した図面に基づき説明する。
ここで図1は本発明に係る金型の成形品押出し装置の構成例図、図2はジョイントの連結構造と回り止め機構の説明図、図3は図2のA矢視図である。
Embodiments of the present invention will be described with reference to the accompanying drawings.
Here, FIG. 1 is a structural example diagram of an apparatus for extruding a molded product according to the present invention, FIG. 2 is an explanatory view of a joint connection structure and a rotation preventing mechanism, and FIG.

本発明に係る金型の成形品押出し装置は、図1に示すような射出成形金型で成形した成形品Wを取り出すための装置として構成され、不図示の押出しロッドによって前進可能な押出しA板1及び押出しB板2と、押出しA板1に取付板3を介して結合されるエアシリンダユニット4と、このエアシリンダユニット4のシリンダロッド4qにジョイント5を介して連結される第1エジェクタピン6を備えており、この第1エジェクタピン6の先端部は可動型7を貫いてキャビティ面に臨み成形品Wに当接している。   The molded product extrusion apparatus according to the present invention is configured as an apparatus for taking out a molded product W molded by an injection mold as shown in FIG. 1, and is an extruded A plate that can be advanced by an unillustrated extrusion rod. 1 and the extruded B plate 2, the air cylinder unit 4 coupled to the extruded A plate 1 via the mounting plate 3, and the first ejector pin coupled to the cylinder rod 4q of the air cylinder unit 4 via the joint 5. 6, and the tip portion of the first ejector pin 6 penetrates the movable mold 7 and faces the cavity surface to be in contact with the molded product W.

また、金型取付板8の所定箇所には、鋳抜きピン9の基端部が結合され、この鋳抜きピン9の周囲には、筒状の第2エジェクタピン10が設けられて基端部が押出しA板1に固定され、先端がキャビティ面に臨んでいる。   In addition, a base end portion of the core pin 9 is coupled to a predetermined portion of the mold mounting plate 8, and a cylindrical second ejector pin 10 is provided around the core pin 9 so that the base end portion is provided. Is fixed to the extruded A plate 1 and the tip faces the cavity surface.

ところで、前記第1エジェクタピン6は、ジョイント5とエアシリンダユニット4に設けた回り止め機構によって回り止めが図られている。
すなわち、エアシリンダユニット4のシリンダロッド4qとシリンダ4sのロッドガイド孔との間には、図示しないがシリンダロッド4qを回転不能にするための形状が付与され、またシリンダロッド4qとジョイント5の結合は、図2に示すように、回り止めネジ11によって直接シリンダロッド4qの結合ネジ部を押圧することで相対回転不能に連結されている。
またジョイント5と第1エジェクタピン6の結合も、第1エジェクタピン6の基端側の大径部6aをジョイント5の溝にスライド嵌合させ、大径部6aの周縁の切欠き部に回り止めネジ12を係合させることで相対回転不能に連結されている。
By the way, the first ejector pin 6 is prevented from rotating by a rotation preventing mechanism provided in the joint 5 and the air cylinder unit 4.
That is, although not shown, a shape for making the cylinder rod 4q non-rotatable is provided between the cylinder rod 4q of the air cylinder unit 4 and the rod guide hole of the cylinder 4s, and the cylinder rod 4q and the joint 5 are coupled. As shown in FIG. 2, the coupling screw portion of the cylinder rod 4 q is directly pressed by the rotation-preventing screw 11 so as not to be relatively rotated.
In addition, the joint 5 and the first ejector pin 6 are also coupled by sliding the large-diameter portion 6a on the proximal end side of the first ejector pin 6 into the groove of the joint 5 and turning around the notch on the periphery of the large-diameter portion 6a. By engaging the set screw 12, they are connected so as not to rotate relative to each other.

このため、回転不能なシリンダロッド4qにジョイント5を介して連結する第1エジェクタピン6も、軸回りに回転不能に連結されることになり、この際、回り止め機構はキャビティ側に影響を与えない。   For this reason, the first ejector pin 6 that is connected to the non-rotatable cylinder rod 4q via the joint 5 is also non-rotatable around the axis. At this time, the rotation prevention mechanism affects the cavity side. Absent.

尚、本実施形態では回り止め機構をエアシリンダユニット4とジョイント5の両方に設けているが、例えばシリンダロッド4qとジョイント5を相対回転可能に連結し、ジョイント5自体を何等かの手段で回転不能にすることで、ジョイント5だけによって回り止め機構を構成するようにしても良い。   In this embodiment, the anti-rotation mechanism is provided in both the air cylinder unit 4 and the joint 5. However, for example, the cylinder rod 4q and the joint 5 are connected so as to be relatively rotatable, and the joint 5 itself is rotated by some means. By making it impossible, the rotation preventing mechanism may be configured only by the joint 5.

以上のように構成した成形品押出し装置で成形品Wを押出す際、押出しA板1と押出しB板2を前進させて第1エジェクタピン6と第2エジェクタピン10を所定ストローク突出させた後、エアシリンダユット4を作動させて第1エジェクタピン6を更に所定ストローク突出させて成形品Wを確実に離型させるよう図る。   When extruding the molded product W by the molded product extrusion apparatus configured as described above, the extruded A plate 1 and the extruded B plate 2 are advanced to project the first ejector pin 6 and the second ejector pin 10 by a predetermined stroke. Then, the air cylinder unit 4 is operated so that the first ejector pin 6 protrudes further by a predetermined stroke so that the molded product W is reliably released.

このような成形品押出し装置において、例えば第1エジェクタピン6が破損したような時は、ジョイント5の結合部を外すだけで容易に対応することが出来る。
すなわち、実施形態では図2に示す回り止めネジ12を外して第1エジェクタピン6の基端側の大径部6aをスライドさせて引抜き、新しい第1エジェクタピン6に交換した後、回り止めネジ12を捩じ込めば処置が完了する。
In such a molded product extruding apparatus, for example, when the first ejector pin 6 is broken, it can be easily handled by simply removing the joint portion of the joint 5.
That is, in the embodiment, after removing the non-rotating screw 12 shown in FIG. 2 and sliding the large-diameter portion 6a on the proximal end side of the first ejector pin 6 and pulling it out to replace with the new first ejector pin 6, If 12 is screwed in, treatment will be completed.

また、保守整備等においてエアシリンダユニット4を取外す時も、ジョイント5で第1エジェクタピン6との連結を解放した後、シリンダ4sを取外せば、作業容易である。   Also, when removing the air cylinder unit 4 for maintenance or the like, it is easy to remove the cylinder 4s after releasing the connection with the first ejector pin 6 by the joint 5.

また、エアシリンダユニット4、及び第1エジェクタピン6は一般的なタイプの市販のものを使用することが出来るため安価に構成出来る。   Further, since the air cylinder unit 4 and the first ejector pin 6 can use general types of commercially available ones, they can be constructed at low cost.

尚、本発明は以上のような実施形態に限定されるものではない。本発明の特許請求の範囲に記載した事項と実質的に同一の構成を有し、同一の作用効果を奏するものは本発明の技術的範囲に属する。
例えば金型は射出成形型以外であっても良く、またジョイントの回り止め機構の構成等は任意である。
The present invention is not limited to the above embodiment. What has substantially the same configuration as the matters described in the claims of the present invention and exhibits the same operational effects belongs to the technical scope of the present invention.
For example, the mold may be other than an injection mold, and the structure of the joint rotation prevention mechanism is arbitrary.

本発明に係る金型の成形品押出し装置の構成例図Configuration Example of Mold Extruding Device for Mold According to the Present Invention ジョイントの連結構造と回り止め機構の説明図Illustration of joint connection structure and detent mechanism 図2のA矢視図A view of arrow A in FIG. 従来の金型の成形品押出し装置の構成例図Configuration example of a conventional mold extrusion device

符号の説明Explanation of symbols

1…押出しA板、2…押出しB板、4…エアシリンダユニット、5…ジョイント、6…第1エジェクタピン、11…回り止めネジ、12…回り止めネジ、W…成形品。   DESCRIPTION OF SYMBOLS 1 ... Extrusion A board, 2 ... Extrusion B board, 4 ... Air cylinder unit, 5 ... Joint, 6 ... 1st ejector pin, 11 ... Anti-rotation screw, 12 ... Anti-rotation screw, W ... Molded article.

Claims (1)

金型の押出し板に取付けられるシリンダユニットと、このシリンダユニットの作動で前記押出し板の移動方向に沿って進退動するエジェクタピンを備えた金型の成形品押出し装置であって、前記シリンダユニットのロッド先端部にはジョイントが回転不能に取付けられ、このジョイントには溝が形成され、この溝にエジェクタピンの基端大径部がスライド嵌合し、このスライド嵌合した状態の前記大径部の切欠き部にネジを係合せしめてなり、エジェクタピンを交換する際には、前記押出し板を外すことなく、前記ネジを外してエジェクタピンの基端大径部を前記溝から引き抜くことを特徴とする金型の成形品押出し装置。 A mold product extruding device comprising a cylinder unit attached to an extrusion plate of a mold, and an ejector pin that moves forward and backward along the movement direction of the extrusion plate by the operation of the cylinder unit. A joint is non-rotatably attached to the tip of the rod, and a groove is formed in this joint. The base end large-diameter portion of the ejector pin is slide-fitted into this groove, and the large-diameter portion in the slide-fitted state When replacing the ejector pin, the screw is removed and the base end large-diameter portion of the ejector pin is pulled out from the groove without removing the pusher plate when the ejector pin is replaced. Mold extrusion product extruding equipment.
JP2006335646A 2006-12-13 2006-12-13 Molded product extrusion equipment Expired - Fee Related JP4450823B2 (en)

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JP5962198A Division JPH11254451A (en) 1998-03-11 1998-03-11 Molded product ejection device for die

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009001414A (en) * 2007-06-20 2009-01-08 Yoshitaka Aoyama Parts supply device
CN102114683A (en) * 2010-12-15 2011-07-06 天津汽车模具股份有限公司 Anti-rotation ejection mechanism for automotive mold
US8393884B2 (en) 2010-06-22 2013-03-12 Pascal Engineering Corporation Ejector device of injection molding machine
US8393883B2 (en) 2010-06-22 2013-03-12 Pascal Engineering Ejector device of injection molding machine
JP2013535349A (en) * 2010-08-30 2013-09-12 ランチォウ ラピッド インダストリアル (グループ)カンパニー リミテッド Compact high-sensitivity cylinder
JP2019000864A (en) * 2017-06-14 2019-01-10 トヨタ車体株式会社 Metal mold driving connection mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009001414A (en) * 2007-06-20 2009-01-08 Yoshitaka Aoyama Parts supply device
US8393884B2 (en) 2010-06-22 2013-03-12 Pascal Engineering Corporation Ejector device of injection molding machine
US8393883B2 (en) 2010-06-22 2013-03-12 Pascal Engineering Ejector device of injection molding machine
JP2013535349A (en) * 2010-08-30 2013-09-12 ランチォウ ラピッド インダストリアル (グループ)カンパニー リミテッド Compact high-sensitivity cylinder
CN102114683A (en) * 2010-12-15 2011-07-06 天津汽车模具股份有限公司 Anti-rotation ejection mechanism for automotive mold
JP2019000864A (en) * 2017-06-14 2019-01-10 トヨタ車体株式会社 Metal mold driving connection mechanism

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