JP2004261852A - Safety door for injection apparatus - Google Patents

Safety door for injection apparatus Download PDF

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Publication number
JP2004261852A
JP2004261852A JP2003056034A JP2003056034A JP2004261852A JP 2004261852 A JP2004261852 A JP 2004261852A JP 2003056034 A JP2003056034 A JP 2003056034A JP 2003056034 A JP2003056034 A JP 2003056034A JP 2004261852 A JP2004261852 A JP 2004261852A
Authority
JP
Japan
Prior art keywords
safety door
shutter
handle
injection molding
molding machine
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.)
Pending
Application number
JP2003056034A
Other languages
Japanese (ja)
Inventor
Yasuhiko Sawada
靖彦 澤田
Takahide Omobayashi
孝英 面林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP2003056034A priority Critical patent/JP2004261852A/en
Publication of JP2004261852A publication Critical patent/JP2004261852A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To prevent a sight glass mounted on a safety door from being soiled with dirt of a mold releasing agent and the like. <P>SOLUTION: A shutter 6 is large enough to cover a sight glass 5 when the shutter is fully closed, and slidably fitted to a guide 6a projecting inward farther than a glass fixing frame 5a. A handle 7 attached to the shutter 6 projects outside a safety door 4 through a notch 4b formed in the safety door 4. Concerning the handle 7, a grasping part 7a a worker grasps is attached to an attaching part 7b, which attaches the handle 7 to the shutter 6, in such a way that the handle 7 is turnable by a pin 7c. A strip-like slide regulating member 8 is attached under the notch 46 at the position, where the grasping part 7a comes into contact with the safety door when tilted downward, approximately parallel with the notch 4b. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、覗き窓を遮蔽するシャッタ機構を有する射出成形機の安全ドアに関する。
【0002】
【従来の技術】
一般に、金属射出成形機は、金型内のキャビティに溶融した金属材料を射出し、金属材料が冷却した後、金型を開いて固化した成形品を取り出した後、キャビティの内壁には、次の成形品が金型から剥離しやすいように離型剤を毎回塗布する。離型剤を噴霧する際の金型は高温状態にあるため、金型に噴霧された離型剤は瞬時にして蒸気状になり拡散放出される。
【0003】
一方、この金型にはチルベントやオーバフローが形成されており、この部分に微細なバリが発生する。この微細なバリは、離型剤を噴霧する際に離型剤ミストと一緒に舞い上がり、浮遊する。このような離型剤および微細なバリが装置外に拡散するのを防止するため、カバーで覆われており、このカバーには、離型不良による残留物の除去等の作業を行うことができるように、開閉可能な安全ドアが設けられている(特許文献1、特許文献2、あるいは特許文献3参照)。
【0004】
安全ドアは、型締め動作時に金型間に作業者の指が挟まれる等といった事故を防止するためのものであるので、安全ドアが少しでも開いた状態となると射出成形機は動作しない構成となっている。一方、新しい金型の生産初期においては、安定して成形品を得るまでその動作状況を確認する必要があるため、安全ドアには安全ドアを開けることなく内部の状況を確認できるように、透明なアクリル材、ガラス材等が用いられた覗き窓が設けられている。
【0005】
【特許文献1】
特開平08−252850号公報
【特許文献2】
特開平07−214608号公報
【特許文献3】
特開平07−214630号公報
【0006】
【発明が解決しようとする課題】
しかしながら、成形の度に、離型剤や微細なバリが拡散するため、図6(a)および図6(b)に示すように、従来の安全ドア104に設けられた覗き窓106には、成形ショット数の増加につれ、拡散した離型剤と微細バリ100が堆積し、透過性が低下してしまい、定期的に覗き窓106の清掃を行わないと、内部を観察ができなくなってしまう場合があった。
【0007】
そこで本発明は、成形ショット数が増加しても内部の観察が可能な射出成形機の安全ドアを提供することを目的とする。
【0008】
【課題を解決するための手段】
上記目的を達成するため本発明の射出成形機の安全ドアは、射出成形機の型締め装置の前面を覆い、内部の状況を観察可能な覗き窓を遮蔽するシャッタ機構を有する、射出成形機の安全ドアであって、前記覗き窓の全面を遮蔽可能な大きさのシャッタと、安全ドアの内面に設けられ、前記シャッタを摺動可能に保持するガイドと、前記シャッタに取り付けられ、前記シャッタが前記ガイドに保持された状態で、前記安全ドアに形成された切り欠きから前記安全ドアの外側に突出する取っ手とを有することを特徴とする。
【0009】
上記のとおり本発明の射出成形機の安全ドアは、安全ドアの内部にて型締め装置に離型剤が噴霧されることで覗き窓が汚れてしまうような状況においてはシャッタを閉じて覗き窓の汚れを防止できるので、安全ドアの内部を観察する際に汚れの少ない状態の覗き窓から内部を観察することができる。また、シャッタに設けられた取っ手により、安全ドアを閉めた状態で、必要に応じてシャッタの開閉を行うことができる。
【0010】
また、本発明の射出成形機の安全ドアは、取っ手が、シャッタに固定される取付部と、取付部に対して略直線状となる状態の第1の位置と安全ドア側に傾倒した状態の第2の位置との間で回動可能に、ピンによって取付部に結合されている把持部とを有するものであってもよい。さらに、安全ドアの外面の、取付部が第2の位置のときに当接する位置に摺動規制部材が取り付けられており、この摺動規制部材が、切り欠きの長手方向に略平行に取り付けられた帯状のゴム材とする構成であってもよい。このような構成とすることで、シャッタの開閉を行う場合には操作がしやすいように取っ手の把持部を取付部に対して直線状にし、シャッタの摺動を規制したい場合には把持部を安全ドア側に倒して把持部をゴム材からなる摺動規制部材に押し当てて、シャッタをその位置で保持することができる。
【0011】
【発明の実施の形態】
次に、本発明の実施の形態について図面を参照して説明する。
【0012】
図1に本発明のシャッタ機構を備えた安全ドアを有する射出成形機の一例の外観図を、図2に、本発明の安全ドアの、図1に示すA−A線での側断面図をそれぞれ示す。
【0013】
図1に示す、射出成形機1は、金属溶融材料あるいは樹脂溶融材料を射出する射出装置2、成形品に対応したキャビティが形成された不図示の金型を開閉する型締め装置3、および不図示の離型剤噴霧装置から噴霧される離型剤の拡散防止、開閉する金型で作業者の指が挟まれる等といった事故を防止するための、型締め装置3の前面部分を覆う安全ドア4を有する構成となっている。
【0014】
射出装置2は、先端部には溶融材料を射出するノズル2bが取り付けられ、内部には回転可能かつ軸方向に摺動可能な不図示のスクリュを備えたシリンダ2aを有する。型締め装置3は、台座9に固定され、金型を保持する固定盤と、駆動手段により摺動可能な、固定盤に保持された金型に対応する金型を保持する可動盤とを有する。
【0015】
安全ドア4は、矢印B方向に摺動可能に設けられ、内部の観察を可能とする覗き窓5と、安全ドア4と同じB方向に摺動可能で、覗き窓5を遮蔽するシャッタ6とを有する。安全ドア4は、摺動可能に設けられているが、上述した事故を未然に防ぐために、射出成形機1の動作時には必ず閉じることとなっており、射出成形機1の動作時に安全ドア4がわずかにでも開いた状態となると、これを不図示の検出機構が検出し、射出成形機1は動作を停止する構成となっている。このため、作業者は、安全ドア4を開けずに射出成形機1の動作時に内部の状況を観察する際には覗き窓5から観察する。この覗き窓5は、アクリル材あるいはガラス材等の透明な部材からなり、図2に示されるように、安全ドア4の内面4aに設けられた窓取付枠5aに嵌め込まれて取り付けられている。
【0016】
シャッタ6は、成形品を取り出した後、高温状態にある金型に毎回塗布され蒸気状になり拡散放出される離型剤や、金型に形成されたチルベントやオーバフローで発生し、離型剤と一緒に舞い上がり浮遊する微細なバリにより覗き窓5が汚れてしまうのを防止するためのものであり、覗き窓5を覆う大きさを有しており、安全ドア4の内面4aに設けられた桟の形状をした、窓取付枠5aよりも内側に張り出したガイド6aに摺動可能に装着されている。
【0017】
また、シャッタ6には、作業者が安全ドア4の外側からシャッタ6を摺動させることができるように、安全ドア4に形成された切り欠き4bを通って安全ドア4の外側へと突出する取っ手7が取り付けられている。取っ手7は、図3(a)に示すように、作業者が把持する把持部7aが、取っ手7をシャッタ6に取り付ける取付部7bに対してピン7cにより矢印C方向に回動可能に取り付けられた構成となっている。切り欠き4bはシャッタ6を摺動させる際に取っ手7が干渉しないようにシャッタ6の摺動方向を長手方向とする形状となっている。また、この切り欠き4bの下側で、取っ手7の把持部7aを下方に倒し込んだ際に把持部7aが当接する外面4cに、シャッタ6の摺動を規制するための摺動規制部材8が切り欠き4bに対して略平行に取り付けられている。摺動規制部材8としては、把持部7aに対する摩擦抵抗が大きい、帯状のゴム材、あるいは樹脂材等が好適である。摺動規制部材8の長さはシャッタ6の移動長さと同程度の長さを有する。なお、切り欠き4bの長手方向の長さも同様である。
【0018】
取っ手7の把持部7aは、シャッタ6を摺動させる際には、把持部7aの軸線と取付部7bの軸線とが略一直線となる第1の位置aで固定され(図3(a)および(b)参照)、作業者はこの直線状に延びた把持部7aを握ってシャッタ6の開閉を行う。一方、シャッタ6を半開き状態等、任意の位置で保持させたい場合には、把持部7aを下方に倒し、把持部7aを摺動規制部材8に押しつけた第2の位置bの状態にして固定する(図3(a)に示す二点鎖線部および(c)参照)。すなわち、把持部7aが第2の位置bに倒し込まれた状態で把持部7aの当接部7a1が摺動規制部材8に当接することで把持部7aと摺動規制部材8との摩擦抵抗によってシャッタ6が勝手に摺動することなく任意の位置で保持されることとなる。このように、取っ手7は、シャッタ6の任意の位置保持を、非常に簡単な機構、操作で達成することができるものである。
【0019】
次に、シャッタ6の動作について図4(a)〜図4(c)に示す模式図を用いて説明する。
【0020】
図4(a)は、シャッタ6を全開にした状態を示している。作業者が覗き窓5を介して内部の状況を詳細に把握する際には、シャッタ6をこの位置まで退避させる。シャッタ6を全開にすることで内部を観察するには最も好ましい状態となるが、覗き窓5は離型剤や微細なバリが付着しやすい状態にある。
【0021】
図4(b)は、シャッタ6を半開にした状態を示している。シャッタ6は覗き窓5の半分ほどを覆った状態となっているが(図中、網掛け部分)、作業者は残る部分から内部を見ることができる。覗き窓5の、シャッタ6で覆われていない領域は、離型剤や微細なバリが付着してしまうものの、シャッタ6で覆われた領域は離型剤等により汚れされにくくなっている。なお、図はシャッタ6が半開の状態を示しているが、作業者は覗き窓5に離型剤等がなるべく付着しないように、必要最小限だけシャッタ6を開いて内部を覗き見ることができる。このようにシャッタ6を半開きにすることで、内部を見ることができるとともに、覗き窓5の汚れを極力少なくすることができる。
【0022】
図4(c)は、シャッタ6を全閉にした状態を示している。内部を見る必要がない場合は、このように、覗き窓5を完全にシャッタ6で遮蔽してしまうことで離型剤等による汚れから覗き窓5を防ぐことができる。
【0023】
以上のように、本実施形態によれば、射出成形機1により連続して安定した成形が行われている場合には、シャッタ6で覗き窓5を遮蔽して覗き窓5の汚れを防止することができるとともに、新しい金型を用いた生産初期等、安定して成形品を得るに至るまで様々な調整が必要で内部の状況を把握したい場合にはシャッタ6を開いて内部の状況を確認することもできる。本実施形態の場合、覗き窓5が汚れやすい状況ではシャッタ6を閉じて覗き窓5が汚れないようにすることができるので成形ショット数が増加しても覗き窓5の清掃を要することなく、必要に応じて、内部を良好な状態で観察することができる。さらに、本実施形態の安全ドア4は、シャッタ6に取っ手4が設けられているので安全ドア4を閉じた状態でもシャッタ6を開閉することができ、また、この取っ手4を倒し込むだけでシャッタ6を任意の位置で保持することもできる。
【0024】
なお、本実施形態では、シャッタ6の上下両側が桟の形状をしたガイド6aの溝に嵌め込まれて摺動する構成を一例に説明したが、シャッタ6を摺動させる構成であればいかなるものであってもよく、例えば、図5に示すように、安全ドア4とシャッタ6とにスライドレールであるガイド10を取り付けた構成であってもよい。
【0025】
【発明の効果】
以上説明したように本発明によれば、覗き窓が離型剤等により汚れてしまうような状況においては、シャッタを閉じて覗き窓の汚れを防止できるので、安全ドアの内部を観察したい場合に、汚れの少ない状態の覗き窓から内部を観察することができる。
【図面の簡単な説明】
【図1】本発明の、シャッタ機構を備えた安全ドアを有する射出成形機の一例の外観図である。
【図2】図1に示すA−A線における、本発明の安全ドアの側断面図である。
【図3】本発明の安全ドアの取っ手の動作を説明する一部拡大図である。
【図4】本発明のシャッタの開閉動作について説明する模式図である。
【図5】本発明の安全ドアのガイドの他の例を示す側断面図である。
【図6】覗き窓に離型剤倒が付着した状態を示す、従来の安全ドアの正面図および側断面図である。
【符号の説明】
1 射出成形機
2 射出装置
2a シリンダ
2b ノズル
3 型締め装置
4 安全ドア
4a 内面
4b 切り欠き
4c 外面
5 窓
5a 窓取付枠
6 シャッタ
6a ガイド
7 取っ手
7a 把持部
7a1 当接部
7b 取付部
7c ピン
8 摺動規制部材
9 台座
10 ガイド
a 第1の位置
b 第2の位置
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a safety door of an injection molding machine having a shutter mechanism for blocking a viewing window.
[0002]
[Prior art]
Generally, a metal injection molding machine injects a molten metal material into a cavity in a mold, cools the metal material, opens the mold and takes out a solidified molded product. A release agent is applied each time so that the molded article of the above can be easily separated from the mold. Since the mold at the time of spraying the release agent is in a high temperature state, the release agent sprayed on the mold instantly becomes a vapor state and is diffused and released.
[0003]
On the other hand, chill vents and overflows are formed in this mold, and fine burrs are generated in these portions. These fine burrs soar together with the release agent mist when spraying the release agent and float. In order to prevent such a release agent and fine burrs from diffusing out of the apparatus, they are covered with a cover, and the cover can be used to perform operations such as removal of residues due to poor release. Thus, a safety door that can be opened and closed is provided (see Patent Literature 1, Patent Literature 2, or Patent Literature 3).
[0004]
The safety door is designed to prevent accidents such as the operator's finger being pinched between the molds during the mold closing operation, so the injection molding machine will not operate if the safety door is opened even a little. Has become. On the other hand, in the early stages of the production of a new mold, it is necessary to check the operation status until a stable molded product is obtained, so the safety door is transparent so that the internal status can be checked without opening the safety door. A viewing window made of a suitable acrylic material, glass material or the like is provided.
[0005]
[Patent Document 1]
JP 08-252850 A [Patent Document 2]
JP 07-214608 A [Patent Document 3]
JP-A-07-214630
[Problems to be solved by the invention]
However, since the release agent and fine burrs diffuse every time molding is performed, as shown in FIGS. 6A and 6B, the viewing window 106 provided in the conventional safety door 104 has When the number of molding shots increases, the diffused release agent and the fine burrs 100 accumulate, and the permeability decreases, and the interior cannot be observed unless the viewing window 106 is periodically cleaned. was there.
[0007]
Accordingly, an object of the present invention is to provide a safety door of an injection molding machine that can observe the inside even if the number of molding shots increases.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the safety door of the injection molding machine of the present invention has a shutter mechanism that covers a front surface of a mold clamping device of the injection molding machine and shields a viewing window through which an internal state can be observed. A safety door, a shutter having a size capable of shielding the entire surface of the viewing window, a guide provided on an inner surface of the safety door, slidably holding the shutter, and a shutter attached to the shutter; A handle protruding from the notch formed in the safety door to the outside of the safety door while being held by the guide.
[0009]
As described above, the safety door of the injection molding machine of the present invention closes the shutter and opens the viewing window in a situation where the release window is contaminated by the release agent being sprayed on the mold clamping device inside the safety door. Therefore, when observing the inside of the safety door, the inside of the safety door can be observed from the view window with little dirt. The handle provided on the shutter allows the shutter to be opened and closed as needed with the safety door closed.
[0010]
Also, the safety door of the injection molding machine of the present invention has a handle in which the handle is fixed to the shutter, a first position where the handle is substantially linear with respect to the mount, and a state where the handle is inclined toward the safety door. And a grip portion rotatably connected to the mounting portion by a pin. Further, a slide restricting member is mounted on the outer surface of the safety door at a position where the mounting portion comes into contact when the mounting portion is at the second position, and the slide restricting member is mounted substantially parallel to the longitudinal direction of the notch. A belt-shaped rubber material may be used. With such a configuration, when opening and closing the shutter, the grip portion of the handle is made linear with respect to the mounting portion for easy operation, and when it is desired to restrict sliding of the shutter, the grip portion is formed. The shutter can be held at that position by falling down to the side of the safety door and pressing the gripping portion against the sliding restriction member made of rubber material.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 is an external view of an example of an injection molding machine having a safety door provided with a shutter mechanism of the present invention. FIG. 2 is a side sectional view of the safety door of the present invention taken along line AA shown in FIG. Shown respectively.
[0013]
An injection molding machine 1 shown in FIG. 1 includes an injection device 2 for injecting a molten metal material or a molten resin material, a mold clamping device 3 for opening and closing a mold (not shown) having a cavity corresponding to a molded product, and A safety door covering the front portion of the mold clamping device 3 for preventing diffusion of the release agent sprayed from the illustrated release agent spray device and preventing an accident such as a worker's finger being pinched by a mold that opens and closes. 4 is provided.
[0014]
The injection device 2 has a cylinder 2a provided with a screw (not shown) that is rotatable and slidable in the axial direction, and a nozzle 2b that injects a molten material is attached to a tip portion. The mold clamping device 3 includes a fixed plate fixed to the pedestal 9 and holding a die, and a movable plate slidable by driving means and holding a die corresponding to the die held by the fixed plate. .
[0015]
The safety door 4 is provided so as to be slidable in the direction of arrow B, and allows a viewing window 5 that allows observation of the inside, and a shutter 6 that is slidable in the same direction B as the safety door 4 and shields the viewing window 5. Having. The safety door 4 is provided so as to be slidable. However, in order to prevent the above-mentioned accident, the safety door 4 is always closed when the injection molding machine 1 is operated. When the state is opened even slightly, this is detected by a detection mechanism (not shown), and the injection molding machine 1 is configured to stop its operation. For this reason, when observing the internal state during operation of the injection molding machine 1 without opening the safety door 4, the operator observes through the observation window 5. The viewing window 5 is made of a transparent material such as an acrylic material or a glass material, and is fitted and mounted on a window mounting frame 5a provided on the inner surface 4a of the safety door 4, as shown in FIG.
[0016]
After the molded product is taken out, the shutter 6 is applied to a mold in a high temperature state each time and is released into a vapor state and diffused and released, or a chill vent or overflow formed in the mold generates the release agent. This is to prevent the viewing window 5 from being contaminated by fine burrs that rise up and float together with it, and have a size to cover the viewing window 5 and are provided on the inner surface 4 a of the safety door 4. It is slidably mounted on a guide 6a, which is shaped like a bar and projects inward from the window mounting frame 5a.
[0017]
In addition, the shutter 6 projects outside the safety door 4 through a notch 4b formed in the safety door 4 so that an operator can slide the shutter 6 from outside the safety door 4. A handle 7 is attached. As shown in FIG. 3 (a), the handle 7 has a grip portion 7a that is gripped by an operator and is rotatably mounted in a direction indicated by an arrow C by a pin 7c with respect to a mounting portion 7b for mounting the handle 7 to the shutter 6. Configuration. The notch 4b is shaped so that the sliding direction of the shutter 6 is a longitudinal direction so that the handle 7 does not interfere when the shutter 6 is slid. Under the notch 4b, a sliding restricting member 8 for restricting the sliding of the shutter 6 is provided on the outer surface 4c with which the grip 7a comes into contact when the grip 7a of the handle 7 is lowered downward. Are attached substantially parallel to the notch 4b. As the slide restricting member 8, a belt-like rubber material, a resin material, or the like having a large frictional resistance to the grip portion 7a is preferable. The length of the slide regulating member 8 is substantially equal to the length of movement of the shutter 6. The same applies to the length of the notch 4b in the longitudinal direction.
[0018]
When sliding the shutter 6, the grip 7a of the handle 7 is fixed at a first position a where the axis of the grip 7a and the axis of the mounting portion 7b are substantially straight (FIG. 3A and FIG. (See (b)), the operator opens and closes the shutter 6 by gripping the grip portion 7a extending linearly. On the other hand, when it is desired to hold the shutter 6 at an arbitrary position such as a half-open state, the grip portion 7a is tilted downward, and the grip portion 7a is fixed to the second position b where the grip portion 7a is pressed against the slide regulating member 8. (See the two-dot chain line portion shown in FIG. 3A and FIG. 3C). That is, the contact portion 7a1 of the grip portion 7a abuts the slide restricting member 8 in a state where the grip portion 7a is tilted to the second position b, so that the frictional resistance between the grip portion 7a and the slide restrict member 8 is increased. As a result, the shutter 6 is held at an arbitrary position without sliding freely. As described above, the handle 7 can achieve an arbitrary position of the shutter 6 with a very simple mechanism and operation.
[0019]
Next, the operation of the shutter 6 will be described with reference to the schematic diagrams shown in FIGS.
[0020]
FIG. 4A shows a state in which the shutter 6 is fully opened. When the worker grasps the internal situation in detail through the viewing window 5, the shutter 6 is retracted to this position. When the shutter 6 is fully opened, it is the most preferable state for observing the inside. However, the viewing window 5 is in a state where a release agent or fine burrs are easily attached.
[0021]
FIG. 4B shows a state in which the shutter 6 is half-opened. The shutter 6 covers about half of the viewing window 5 (shaded portion in the figure), but the operator can see the inside from the remaining portion. The area of the viewing window 5 that is not covered by the shutter 6 has a release agent or fine burrs attached thereto, but the area covered by the shutter 6 is not easily stained by the release agent or the like. Although the drawing shows a state in which the shutter 6 is half-opened, an operator can open the shutter 6 to a minimum and peep inside so that a release agent or the like does not adhere to the viewing window 5 as much as possible. . By half-opening the shutter 6 in this way, the inside can be seen, and dirt on the viewing window 5 can be reduced as much as possible.
[0022]
FIG. 4C shows a state where the shutter 6 is fully closed. When it is not necessary to look inside, the viewing window 5 can be prevented from being stained by a release agent or the like by completely blocking the viewing window 5 with the shutter 6 as described above.
[0023]
As described above, according to the present embodiment, when the injection molding machine 1 continuously performs stable molding, the shutter 6 shields the viewing window 5 to prevent the viewing window 5 from being stained. In addition, when various adjustments are required until a stable molded product is obtained, such as in the initial stage of production using a new mold, the shutter 6 is opened to check the internal condition when the internal condition needs to be grasped. You can also. In the case of the present embodiment, the shutter 6 can be closed to prevent the viewing window 5 from becoming dirty in a situation where the viewing window 5 is easily soiled, so that even if the number of molding shots increases, the viewing window 5 does not need to be cleaned. If necessary, the inside can be observed in a good state. Further, in the safety door 4 of the present embodiment, since the handle 6 is provided on the shutter 6, the shutter 6 can be opened and closed even when the safety door 4 is closed. 6 can also be held in any position.
[0024]
In the present embodiment, an example in which the upper and lower sides of the shutter 6 are fitted into the groove of the guide 6a shaped like a bar and slides is described as an example, but any structure that slides the shutter 6 may be used. For example, as shown in FIG. 5, a configuration in which a guide 10 which is a slide rail is attached to the safety door 4 and the shutter 6 may be employed.
[0025]
【The invention's effect】
As described above, according to the present invention, in a situation where the viewing window is contaminated by the release agent or the like, the shutter can be closed to prevent the viewing window from being stained. The inside can be observed from the view window with little dirt.
[Brief description of the drawings]
FIG. 1 is an external view of an example of an injection molding machine having a safety door having a shutter mechanism according to the present invention.
FIG. 2 is a side sectional view of the safety door of the present invention taken along line AA shown in FIG.
FIG. 3 is a partially enlarged view illustrating the operation of the handle of the safety door of the present invention.
FIG. 4 is a schematic diagram illustrating an opening and closing operation of a shutter according to the present invention.
FIG. 5 is a side sectional view showing another example of the guide of the safety door of the present invention.
FIG. 6 is a front view and a side sectional view of a conventional safety door showing a state in which a release agent has adhered to a viewing window.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Injection molding machine 2 Injection device 2a Cylinder 2b Nozzle 3 Mold clamping device 4 Safety door 4a Inner surface 4b Notch 4c Outer surface 5 Window 5a Window mounting frame 6 Shutter 6a Guide 7 Handle 7a Gripping portion 7a1 Contact portion 7b Mounting portion 7c Pin 8 Sliding restricting member 9 Base 10 Guide a First position b Second position

Claims (4)

射出成形機(1)の型締め装置(3)の前面を覆い、内部の状況を観察可能な覗き窓(5)を遮蔽するシャッタ機構を有する射出成形機の安全ドアであって、
前記覗き窓(5)の全面を遮蔽可能な大きさのシャッタ(6)と、
安全ドア(4)の内面(4a)に設けられ、前記シャッタ(6)を摺動可能に保持するガイド(6a、10)と、
前記シャッタ(6)に取り付けられ、前記シャッタ(6)が前記ガイド(6a、10)に保持された状態で、前記安全ドア(4)に形成された切り欠き(4b)から前記安全ドア(4)の外側に突出する取っ手(7)とを有することを特徴とする射出成形機の安全ドア。
A safety door of an injection molding machine having a shutter mechanism for covering a front surface of a mold clamping device (3) of the injection molding machine (1) and shielding a viewing window (5) for observing an internal state,
A shutter (6) large enough to cover the entire surface of the viewing window (5);
A guide (6a, 10) provided on an inner surface (4a) of the safety door (4) and slidably holding the shutter (6);
When the shutter (6) is attached to the shutter (6) and the shutter (6) is held by the guides (6a, 10), the safety door (4) is cut through a notch (4b) formed in the safety door (4). And a handle (7) protruding outwardly of the safety door of an injection molding machine.
前記取っ手(7)が、前記シャッタ(6)に固定される取付部(7b)と、前記取付部(7b)に対して略直線状となる状態の第1の位置と前記安全ドア(4)側に傾倒した状態の第2の位置との間で回動可能に、ピン(7c)によって前記取付部(7b)に結合されている把持部(7a)とを有する、請求項1に記載の射出成形機の安全ドア。A mounting portion (7b) in which the handle (7) is fixed to the shutter (6); a first position where the handle (7) is substantially linear with respect to the mounting portion (7b); and the safety door (4). 2. The grip according to claim 1, further comprising: a grip (7 a) coupled to the attachment (7 b) by a pin (7 c) so as to be rotatable between a second position tilted to the side. 3. Safety door of injection molding machine. 前記安全ドア(4)の外面(4c)の、前記取付部(7b)が前記第2の位置のときに当接する位置に、前記シャッタ(6)の摺動を規制する摺動規制部材(8)が取り付けられている、請求項2に記載の射出成形機の安全ドア。A sliding restricting member (8) for restricting sliding of the shutter (6) is provided on the outer surface (4c) of the safety door (4) at a position where the mounting portion (7b) comes into contact with the second position. 3. The safety door of an injection molding machine according to claim 2, wherein the safety door is mounted. 前記摺動規制部材(8)は、前記切り欠き(4b)の長手方向に略平行に取り付けられた帯状のゴム材である、請求項3に記載の射出成形機の安全ドア。The safety door of an injection molding machine according to claim 3, wherein the slide regulating member (8) is a band-shaped rubber material attached substantially parallel to a longitudinal direction of the notch (4b).
JP2003056034A 2003-03-03 2003-03-03 Safety door for injection apparatus Pending JP2004261852A (en)

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Cited By (9)

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CN105618703A (en) * 2015-11-11 2016-06-01 无锡市鹏达液压机床厂 Protective door system for servo aluminum casting machine
EP3072667A1 (en) 2015-03-27 2016-09-28 Sumitomo Heavy Industries, Ltd. Transparent member-equipped cover of injection molding machine, and injection molding machine
EP3072666A1 (en) 2015-03-27 2016-09-28 Sumitomo Heavy Industries, Ltd. Transparent member-equipped cover of injection molding machine, and injection molding machine
JP2018047579A (en) * 2016-09-20 2018-03-29 東洋機械金属株式会社 Slide door structure and industrial machinery
KR101954037B1 (en) * 2018-10-24 2019-03-04 한덕주 injection machine
CN109955451A (en) * 2019-04-09 2019-07-02 西诺控股集团有限公司 The New-type safety door mechanism of injection molding machine
TWI784442B (en) * 2021-03-15 2022-11-21 惠亞工程股份有限公司 Supply equipment
TWI784441B (en) * 2021-03-15 2022-11-21 惠亞工程股份有限公司 Shielding device for supply equipment
CN116044297A (en) * 2023-04-03 2023-05-02 华翱洁净科技(广东)有限公司 Opposite-clamping type observation door with self-cleaning function

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JP2016185696A (en) * 2015-03-27 2016-10-27 住友重機械工業株式会社 Transparent member-equipped cover of injection molding machine, and injection molding machine
KR101908773B1 (en) * 2015-03-27 2018-10-16 스미도모쥬기가이고교 가부시키가이샤 Transparent member adhering cover of injection molding machine and injection molding machine
EP3072666A1 (en) 2015-03-27 2016-09-28 Sumitomo Heavy Industries, Ltd. Transparent member-equipped cover of injection molding machine, and injection molding machine
KR20160115736A (en) 2015-03-27 2016-10-06 스미도모쥬기가이고교 가부시키가이샤 Transparent member adhering cover of injection molding machine and injection molding machine
CN106003640A (en) * 2015-03-27 2016-10-12 住友重机械工业株式会社 Transparent member-equipped cover of injection molding machine, and injection molding machine
JP2016185695A (en) * 2015-03-27 2016-10-27 住友重機械工業株式会社 Transparent member-equipped cover of injection molding machine, and injection molding machine
EP3072667A1 (en) 2015-03-27 2016-09-28 Sumitomo Heavy Industries, Ltd. Transparent member-equipped cover of injection molding machine, and injection molding machine
CN105618703A (en) * 2015-11-11 2016-06-01 无锡市鹏达液压机床厂 Protective door system for servo aluminum casting machine
JP2018047579A (en) * 2016-09-20 2018-03-29 東洋機械金属株式会社 Slide door structure and industrial machinery
KR101954037B1 (en) * 2018-10-24 2019-03-04 한덕주 injection machine
CN109955451A (en) * 2019-04-09 2019-07-02 西诺控股集团有限公司 The New-type safety door mechanism of injection molding machine
TWI784442B (en) * 2021-03-15 2022-11-21 惠亞工程股份有限公司 Supply equipment
TWI784441B (en) * 2021-03-15 2022-11-21 惠亞工程股份有限公司 Shielding device for supply equipment
CN116044297A (en) * 2023-04-03 2023-05-02 华翱洁净科技(广东)有限公司 Opposite-clamping type observation door with self-cleaning function
CN116044297B (en) * 2023-04-03 2023-06-06 华翱洁净科技(广东)有限公司 Opposite-clamping type observation door with self-cleaning function

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