JPS6329538Y2 - - Google Patents

Info

Publication number
JPS6329538Y2
JPS6329538Y2 JP858782U JP858782U JPS6329538Y2 JP S6329538 Y2 JPS6329538 Y2 JP S6329538Y2 JP 858782 U JP858782 U JP 858782U JP 858782 U JP858782 U JP 858782U JP S6329538 Y2 JPS6329538 Y2 JP S6329538Y2
Authority
JP
Japan
Prior art keywords
movable platen
crosshead
cylinder
stopper
force
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
Application number
JP858782U
Other languages
Japanese (ja)
Other versions
JPS58112518U (en
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 filed Critical
Priority to JP858782U priority Critical patent/JPS58112518U/en
Publication of JPS58112518U publication Critical patent/JPS58112518U/en
Application granted granted Critical
Publication of JPS6329538Y2 publication Critical patent/JPS6329538Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

【考案の詳細な説明】 本考案は、射出成形機などにおいて、とくにト
グル式の型締装置において、緊急非常時に型締装
置前面の安全ドアを開くことによつて、型締行程
中の可動盤の前進を阻止せんとする安全装置に関
するものである。
[Detailed description of the invention] This invention is an injection molding machine, etc., in particular, a toggle-type mold clamping device, by opening the safety door on the front of the mold clamping device in case of an emergency. This relates to a safety device that attempts to prevent the advance of a vehicle.

この種の従来装置は、第6図に示されているの
で、先ず、これを説明すると、可動盤2の緊急停
止時の前進力およびその慣性力(速度成分)は、
安全ドア(図示されていない)を開くことによ
り、シリンダ6が下降し、ストツパ16が、スト
ツパ棒14のノコ歯型溝20と係合することによ
つて、これを阻止制限し、可動盤2の前進を停止
させるようにしている。
This type of conventional device is shown in FIG. 6. First, to explain it, the forward force and its inertial force (velocity component) at the time of emergency stop of the movable platen 2 are as follows:
By opening the safety door (not shown), the cylinder 6 is lowered, and the stopper 16 prevents and limits this by engaging with the saw-tooth groove 20 of the stopper rod 14, and the movable platen 2 is trying to stop the advance of the

これはストツパ棒14、その支持ブロツク4,
5あるいは支持ブロツク4におけるストツパ棒1
4のノツクピン7などを、大きく強力に形成する
必要があることである。
This consists of a stopper rod 14, its support block 4,
5 or stopper rod 1 in support block 4
It is necessary to form the dowel pin 7 of No. 4 large and strong.

またストツパ棒14に切られているノコ歯型溝
20は、可動盤2の全ストロークに相当する巾に
亘つて切る必要があるし、さらに部品点数が多く
なつてコスト高となる。
Further, the sawtooth groove 20 cut in the stopper rod 14 must be cut over a width corresponding to the entire stroke of the movable platen 2, and the number of parts increases, resulting in high cost.

しかも停止時には、可動盤2の慣性力が大きい
のでその衝撃が大きくなり装置の破損をきたすこ
とになる。
Moreover, when the movable platen 2 is stopped, the inertia force of the movable platen 2 is large, so that the impact becomes large and causes damage to the device.

本考案は、このような従来装置の欠点を解消せ
んとするものであつて、クロスヘツド12の移動
量が可動盤2の移動量より小さく、通常の場合
は、これが1/2であることに着目し、クロスヘツ ド12の方を直接停止せしめて、可動盤2とクロ
スヘツド12とを一体化することにより、可動盤
2の前進を低衝撃で阻止させんとするものであ
る。
The present invention aims to solve these drawbacks of the conventional device, and focuses on the fact that the amount of movement of the crosshead 12 is smaller than the amount of movement of the movable platen 2, which is usually 1/2. However, by directly stopping the crosshead 12 and integrating the movable platen 2 and the crosshead 12, the forward movement of the movable platen 2 is prevented with a low impact.

これを第1図ないし第5図について説明する。 This will be explained with reference to FIGS. 1 to 5.

1は固定盤、3はハウジングでその間に可動盤
2が摺動自在に装着される。
1 is a fixed plate, 3 is a housing, and a movable plate 2 is slidably mounted therebetween.

12はクロスヘツド、8はガイドロツドであつ
てその一端は可動盤2に固着され、クロスヘツド
12にボルトなどで固定された制限ブロツク15
内を挿通し、他端はハウジング3のガイド部19
でガイドされる。
12 is a crosshead, 8 is a guide rod, one end of which is fixed to the movable platen 2, and a restriction block 15 fixed to the crosshead 12 with bolts or the like.
The other end is inserted into the guide part 19 of the housing 3.
be guided by.

Tは可動盤2とクロスヘツド12との間に設け
たトグル機構で、長リンク9短リンク10クロス
リンク11よりなる。短リンク10端はハウジン
グ3に枢着される。13は型締シリンダである。
T is a toggle mechanism provided between the movable platen 2 and the crosshead 12, and is composed of 9 long links, 10 short links, and 11 cross links. The end of the short link 10 is pivotally connected to the housing 3. 13 is a mold clamping cylinder.

前記制限ブロツク15の側面にはシリンダ6を
取付ける。16(第3図参照)はシリンダロツド
6′先端に締結ネジ18をもつて固定したストツ
パで、このストツパ16は、ガイドロツド8に設
けられたノコ歯型溝20と係合する。
A cylinder 6 is attached to the side surface of the restriction block 15. A stopper 16 (see FIG. 3) is fixed to the tip of the cylinder rod 6' with a fastening screw 18, and this stopper 16 engages with a sawtooth groove 20 provided in the guide rod 8.

ストツパ16の上面とシリンダ6の下面との間
には圧縮スプリング17を装着する。
A compression spring 17 is installed between the upper surface of the stopper 16 and the lower surface of the cylinder 6.

その作用を説明すると、 安全ドア(図示していないが機内への身体の侵
入を防止するものである)を閉じた状態では、シ
リンダ6にエアーまたは油圧を導入することによ
りストツパ16を上昇させて可動盤2を前進させ
て型締作動がなされる。
To explain its function, when the safety door (not shown, but which prevents people from entering the cabin) is closed, the stopper 16 is raised by introducing air or hydraulic pressure into the cylinder 6. The mold clamping operation is performed by moving the movable platen 2 forward.

緊急時には安全ドアを開き、前記シリンダ6の
エアーまたは油圧を抜いて開放することにより、
ストツパ16は、圧縮スプリング17とその自重
で下降し、ガイドロツド8のノコ歯型溝20に係
合し、可動盤2の前進を阻止する。
In case of an emergency, by opening the safety door and releasing the air or hydraulic pressure from the cylinder 6,
The stopper 16 descends due to the compression spring 17 and its own weight, engages with the sawtooth groove 20 of the guide rod 8, and prevents the movable platen 2 from moving forward.

この場合、可動盤2の前進を停止させるために
必要な力は、 可動盤前進力+慣性力 である。
In this case, the force required to stop the advance of the movable platen 2 is the movable platen forward force + inertia force.

可動盤前進力とはシリンダ量×力の拡大率 であつて力の拡大率とは クロスヘツドの移動量÷可動盤の移動量 であつて実用的にみて可動盤2を停止する域での
力の拡大率は通常1/2〜4/5程度である。
The forward force of the movable plate is the amount of cylinder x the magnification rate of force, and the magnification rate of force is the amount of movement of the crosshead ÷ the amount of movement of the movable plate, and from a practical perspective, it is the force in the range where movable plate 2 is stopped. The magnification ratio is usually about 1/2 to 4/5.

すなわち、可動盤前進力は、シリンダ13の力
量をFとすると、簡単にF×1/2ということがで きる。
That is, if the force of the cylinder 13 is F, the movable platen forward force can be easily expressed as F×1/2.

この場合可動盤2の移動量、すなわち可動盤2
の速度は、クロスヘツド12の移動量、すなわち
その速度Sの倍の2Sとなり、両者は相対的に異
なる速度で移動する。
In this case, the amount of movement of the movable platen 2, that is, the movable platen 2
The speed of the crosshead 12 is 2S, which is twice the amount of movement of the crosshead 12, that is, its speed S, and the two move at relatively different speeds.

したがつて、従来のように、可動盤2自体を阻
止させる場合、慣性力は可動盤2の速度2Sに比
例するが、本考案のようにクロスヘツド12を阻
止させる場合の慣性力は可動盤速度−クロスヘツ
ド速度つまり速度Sに比例することになつてその
絶対値が半減する。
Therefore, when the movable platen 2 itself is blocked as in the past, the inertia force is proportional to the speed 2S of the movable platen 2, but when the crosshead 12 is blocked as in the present invention, the inertial force is proportional to the movable platen speed. - It becomes proportional to the crosshead speed, that is, the speed S, and its absolute value is halved.

したがつて慣性力が小さくなつて停止時の衝撃
力がそれだけ小さくなり関係部品の小型化が可能
となる。
Therefore, the inertial force is reduced, and the impact force at the time of stopping is correspondingly reduced, making it possible to downsize the related parts.

また従来のものは可動盤の移動全ストローク
(2Sに相当する)にノコ歯型溝20を切る必要
があるが、本考案では可動盤ストローク−クロス
ヘツドストローク域(Sに相当する)にのみこれ
を切ればよいことになり、しかも既設のガイドロ
ツド8にこれを切ればよいことになつてコスト的
にも有利となる。
In addition, in the conventional model, it is necessary to cut a sawtooth groove 20 for the entire movement stroke of the movable platen (corresponding to 2S), but in the present invention, this is only done in the movable platen stroke - crosshead stroke range (corresponding to S). In addition, it is only necessary to cut the guide rod 8 into the existing guide rod 8, which is advantageous in terms of cost.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本装置の正面図、第2図は第1図のA
−A線断面図、第3図は本考案の要部であるスト
ツパの部分の拡大図、第4図は同クロスヘツドの
部分の拡大図、第5図は同じく制限ブロツクの部
分の横断面図、第6図は従来装置の正面図であ
る。 2……可動盤、3……ハウジング、6……シリ
ンダ、6′……シリンダロツド、8……ガイドロ
ツド、12……クロスヘツド、15……制限ブロ
ツク、16……ストツパ、19……ガイド部、2
0……ノコ歯型溝、T……トグル機構。
Figure 1 is a front view of this device, Figure 2 is A of Figure 1.
3 is an enlarged view of the stopper portion, which is the main part of the present invention, FIG. 4 is an enlarged view of the crosshead portion, and FIG. 5 is a cross sectional view of the restriction block portion. FIG. 6 is a front view of the conventional device. 2... Movable plate, 3... Housing, 6... Cylinder, 6'... Cylinder rod, 8... Guide rod, 12... Cross head, 15... Limiting block, 16... Stopper, 19... Guide portion, 2
0...Sawtooth groove, T...Toggle mechanism.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 可動盤2とクロスヘツド12との間にトグル機
構Tを設け、可動盤2に一端を固定したガイドロ
ツド8を、クロスヘツド12に取付けた制限ブロ
ツク15内に挿通せしめ、その他端はハウジング
3のガイド部19でガイドさせ、そして、前記制
限ブロツク15の側面にシリンダ6を取付け、シ
リンダロツド6′の先端に設けたストツパ16と
ガイドロツド8に設けたノコ歯型溝20とを係合
可能とした射出成形機などの型締装置の安全装
置。
A toggle mechanism T is provided between the movable platen 2 and the crosshead 12, and the guide rod 8, which has one end fixed to the movable platen 2, is inserted into the restriction block 15 attached to the crosshead 12, and the other end is inserted into the guide portion 19 of the housing 3. An injection molding machine, etc. in which a cylinder 6 is attached to the side surface of the restriction block 15, and a stopper 16 provided at the tip of the cylinder rod 6' can engage with a sawtooth groove 20 provided in the guide rod 8. Safety device for mold clamping device.
JP858782U 1982-01-25 1982-01-25 Safety devices for mold clamping devices such as injection molding machines Granted JPS58112518U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP858782U JPS58112518U (en) 1982-01-25 1982-01-25 Safety devices for mold clamping devices such as injection molding machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP858782U JPS58112518U (en) 1982-01-25 1982-01-25 Safety devices for mold clamping devices such as injection molding machines

Publications (2)

Publication Number Publication Date
JPS58112518U JPS58112518U (en) 1983-08-01
JPS6329538Y2 true JPS6329538Y2 (en) 1988-08-09

Family

ID=30021271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP858782U Granted JPS58112518U (en) 1982-01-25 1982-01-25 Safety devices for mold clamping devices such as injection molding machines

Country Status (1)

Country Link
JP (1) JPS58112518U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8192192B2 (en) 2009-12-21 2012-06-05 Fanuc Ltd Mechanical safety device for an injection molding machine
JP2019014059A (en) * 2017-07-04 2019-01-31 ファナック株式会社 Injection molder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0413133Y2 (en) * 1985-07-15 1992-03-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8192192B2 (en) 2009-12-21 2012-06-05 Fanuc Ltd Mechanical safety device for an injection molding machine
JP2019014059A (en) * 2017-07-04 2019-01-31 ファナック株式会社 Injection molder

Also Published As

Publication number Publication date
JPS58112518U (en) 1983-08-01

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