JP4315446B2 - Clamping device safety device - Google Patents

Clamping device safety device Download PDF

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JP4315446B2
JP4315446B2 JP2004185025A JP2004185025A JP4315446B2 JP 4315446 B2 JP4315446 B2 JP 4315446B2 JP 2004185025 A JP2004185025 A JP 2004185025A JP 2004185025 A JP2004185025 A JP 2004185025A JP 4315446 B2 JP4315446 B2 JP 4315446B2
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plate
shaft
safety
pressure receiving
locking
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JP2006007472A5 (en
JP2006007472A (en
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勇 山口
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Nissei Plastic Industrial Co Ltd
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Nissei Plastic Industrial Co Ltd
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Description

この発明は、可動盤から受圧盤に突設した安全棒と、安全扉が備えるカム部材により作動する係止板との係合により、開扉状態での可動盤の移動を阻止する型締装置の安全装置に関するものである。   The present invention relates to a mold clamping device for preventing movement of a movable platen in an open state by engaging a safety bar protruding from a movable plate to a pressure receiving plate and a locking plate operated by a cam member provided in the safety door. This relates to the safety device.

従来の安全装置では、可動盤から受圧盤に突設した安全棒に対し、ロックプレートを受圧盤側部に軸承して係脱自在に設け、そのロックプレートを回動作動するドグ部を、固定盤から受圧盤にわたり架設した伝動軸の受圧盤側に摺動自在に嵌挿して、ロックプレートとドグ部とを受圧盤と共に移動できるようにし、安全扉が備えるカム部材により転倒起立するローラコロを、伝動軸の固定盤側に突設して、安全扉の開閉ごと伝動軸を回動できるようにし、これにより受圧盤の移動による型厚調整にも対応できるようにしている。
特開２００１−１９１３８４号公報 In the conventional safety device, a lock plate is mounted on the side of the pressure plate to be freely detachable from the safety bar that protrudes from the movable plate to the pressure plate, and the dog that rotates the lock plate is fixed. A roller shaft that is slidably inserted into the pressure receiving plate side of the transmission shaft spanned from the panel to the pressure receiving plate so that the lock plate and the dog portion can be moved together with the pressure receiving plate. The transmission shaft protrudes from the fixed plate side so that the transmission shaft can be rotated every time the safety door is opened and closed, so that the mold thickness can be adjusted by moving the pressure receiving plate.
JP 2001-191384 A

上記従来の安全装置では、伝動軸を固定盤から受圧盤に架設しているので長尺の軸材が必要となり、途中で支持できないことから撓み難い大径の軸材を用いることになる。伝動軸が大径になると重量も増すのでカム部材の移動によるローラコロの転倒起立に力を要するようになり、安全扉の開き始めと閉じ終わりがきつくなって、安全扉をスムーズに開閉し難くなる。またロックプレートを支軸により受圧盤に支持して安全棒との係合を行っているので、可動盤の移動力により変形してドグ部との係合が損なわれ易く、長期の使用に耐え難い。さらに伝動軸の一部が型開閉部に位置しているので、成形品の取出作業や金型取付作業時の障害となる等の課題を有する。   In the above-described conventional safety device, since the transmission shaft is installed from the fixed plate to the pressure receiving plate, a long shaft member is required, and since it cannot be supported in the middle, a large-diameter shaft member that is difficult to bend is used. As the transmission shaft becomes larger in diameter, the weight will increase, and it will be necessary to force the roller roller to fall by moving the cam member. The opening and closing of the safety door will become tight, making it difficult to open and close the safety door smoothly. . Also, because the lock plate is supported on the pressure plate by the support shaft and engaged with the safety rod, it is easily deformed by the moving force of the movable plate and the engagement with the dog part is easily lost, and it is difficult to withstand long-term use. . Furthermore, since a part of the transmission shaft is located at the mold opening / closing part, there are problems such as an obstacle during the work of taking out the molded product and the work of attaching the mold.

この発明は、上記従来の課題を解決するために考えられたもので、その目的は、安全棒に作用する係止装置を、受圧盤と可動盤との間の機台上に設置できるように構成して、安全棒と係合する係止板の回動軸の短縮を図るとともに、回動軸の作動子と安全扉が備えるカム部材との閉扉時の関連位置を、受圧盤の移動による型厚調整にも左右されず定位置に保って、開扉時の安全性を確保できる新たな型締装置の安全装置を提供することにある。   The present invention has been conceived in order to solve the above-described conventional problems, and an object of the present invention is to enable a locking device acting on a safety rod to be installed on a machine base between a pressure receiving plate and a movable platen. The rotation axis of the locking plate engaged with the safety rod is shortened, and the position of the rotation axis actuator and the cam member of the safety door at the time of closing is determined by the movement of the pressure receiving plate. An object of the present invention is to provide a new safety device for a mold clamping device that can maintain a fixed position without being influenced by mold thickness adjustment and can ensure safety when the door is opened.

上記目的によるこの発明は、可動盤の下側から受圧盤に水平に突設した安全棒と、その安全棒の側面に形成した係合段部と係合して、可動盤の型閉移動を阻止する係止板を備えた係止装置とからなり、その係止装置を、前端部を支軸に形成したスプライン軸又は角軸による回動軸と、その回動軸の前端部の支軸に下向きに止着した上記係止板と、回動軸を軸方向に摺動自在に挿通した軸受部材と、その軸受部材の側面に横向きに突設した作動子と、軸受部材を回動自在に嵌合して支持した設置板とから構成し、その設置板を、閉扉位置の安全扉が備えるカム部材に上記軸受部材が隣位し、かつ上記作動子がカム部材に支持される受圧盤と可動盤との間の機台上に立設する一方、上記回動軸を受圧盤側面の支持ブロックに支軸を回動自在に挿通して安全棒の上に並行に支持するとともに、前端部を上記係止板と共に受圧盤に連結し、該回動軸と上記安全棒の係合段部に位置した係止板とが受圧盤と共に進退移動するように構成してなる、というものである。 The present invention according to the above object engages with a safety bar that protrudes horizontally from the lower side of the movable plate to the pressure receiving plate, and an engagement step formed on the side surface of the safety rod, so A locking device having a locking plate for blocking, and the locking device includes a pivot shaft formed by a spline shaft or a square shaft having a front end portion as a support shaft, and a support shaft at the front end portion of the rotation shaft. The above-mentioned locking plate that is fixed downward, a bearing member that is slidably inserted in the axial direction of the rotating shaft, an actuator that projects laterally on the side surface of the bearing member, and the bearing member is rotatable. It consisted fitted with supporting the installation plate, the mounting plate, the bearing member is vicinal to the cam member provided in the safety door closing position, and the pressure receiving plate to the operating element is supported on the cam member and while standing on the machine frame on between the movable plate, rotatably inserted the shaft of the shaft above times the support block of the pressure receiving plate side Converting mechanism is supported parallel to the top of the safety bar, the front end portion is connected to the pressure receiving plate with the locking plate, and a locking plate which is located in engagement step of the pivoting shaft and the safety bar with the pressure receiving plate It is configured to move forward and backward.

またこの発明は、可動盤の下側から受圧盤に水平に突設した安全棒と、その安全棒の側面に形成した係合段部と係合して、可動盤の型閉移動を阻止する係止板を備えた係止装置とからなり、その係止装置を、少なくとも前端部がスプライン軸又は角軸の支軸に形成された回動軸と、その支軸に下向きに嵌挿した上記係止板と、回動軸の後端を嵌合止着した軸受部材と、その軸受部材の側面に横向きに突設した作動子と、軸受部材を回動自在に嵌合して支持した設置板とから構成し、その設置板を、閉扉位置の安全扉が備えるカム部材に上記軸受部材が隣位し、かつ上記作動子がカム部材に支持される受圧盤と可動盤との間の機台上に立設する一方、上記回動軸を受圧盤側面の支持ブロックに支軸を回動かつ摺動自在に挿通して安全棒の上に並行に支持するとともに、係止板を支持ブロックと共に支軸を摺動移動するように該支軸に挿通し、上記安全棒の係合段部に位置した係止板が回動軸との嵌合を維持しながら受圧盤と共に進退移動するよう構成してなる、というものである。 Further, the present invention engages with a safety bar that protrudes horizontally from the lower side of the movable plate to the pressure receiving plate, and an engagement step formed on the side surface of the safety rod to prevent the movable plate from closing the mold. consists of a locking device having a locking plate, the locking device, and fitted with the pivot shaft, at least the front end portion is formed in the support shaft of the spline shaft or square shaft, downwardly to the support shaft above Installation that supports the locking plate, the bearing member fitted and fixed to the rear end of the rotating shaft, the actuator projecting laterally on the side surface of the bearing member, and the bearing member fitted rotatably. A plate between the pressure receiving plate and the movable plate, the bearing member being adjacent to the cam member of the safety door in the closed door position, and the actuator being supported by the cam member. while standing on the platform, parallel to the top of the safety bar is inserted slidably one move the spindle turn the shaft above times the support block of the pressure receiving plate side Fitting while supporting, by inserting the support shaft together with the support block engaging plate to support shaft to slide movement, locking plate which is located in engagement step of the safety bar has a pivot axis It is configured to move forward and backward with the pressure receiving panel while maintaining the pressure.

上記構成では、回動軸の軸受部材が閉扉位置の安全扉のカム部材に常に隣位し、軸受部材の作動子が安全扉のカム部材上に位置しているので、受圧盤の位置移動に関係なく、安全扉の開閉に伴い作動子が上下動して、軸受部材と共に回動軸と係止板とを回動し、係止板と安全棒との係合及び解除を行うので、開扉時における可動盤の型閉移動が確実に防止される。また受圧盤と可動盤との間の機台上に立設した設置板と受圧盤とに回動軸を設けたので、回動軸の長さが短くなり、長さの短縮により撓み難くなるので小径の軸材を採用して装置の小型化を図ることができる。   In the above configuration, the bearing member of the rotating shaft is always adjacent to the cam member of the safety door in the closed position, and the actuator of the bearing member is positioned on the cam member of the safety door. Regardless of the opening and closing of the safety door, the actuator moves up and down to rotate the rotating shaft and locking plate together with the bearing member, and engage and release the locking plate and safety rod. The mold closing movement of the movable plate at the time of the door is surely prevented. In addition, since the rotary shaft is provided on the installation plate and the pressure receiving plate that are erected on the machine base between the pressure plate and the movable plate, the length of the rotary shaft is shortened and it is difficult to bend due to the shortening of the length. Therefore, it is possible to reduce the size of the apparatus by using a small-diameter shaft material.

図中１は機台上に設置した固定盤、２は受圧盤で機台上に移動自在に設置してあり、その両方は複数本のタイバー４により連結してある。３はタイバー４に挿通して固定盤１と受圧盤２との間に進退自在に設けた可動盤で、受圧盤２に一端部を連結したトグル機構５の他端部が連結してある。６は安全扉で固定盤１と可動盤３との間の側部に横方向に開閉自在に取付けてある。   In the figure, reference numeral 1 is a fixed plate installed on the machine base, 2 is a pressure receiving board, which is movably installed on the machine base, both of which are connected by a plurality of tie bars 4. Reference numeral 3 denotes a movable plate that is inserted through the tie bar 4 so as to be movable back and forth between the fixed plate 1 and the pressure receiving plate 2, and is connected to the other end of a toggle mechanism 5 having one end connected to the pressure receiving plate 2. A safety door 6 is attached to a side portion between the fixed platen 1 and the movable platen 3 so as to be openable and closable in the lateral direction.

７は開扉時で可動盤３の型閉移動を阻止する安全棒で、前部片側面に後向きの係合段部７ａと前向きのテーパー面７ｂとを交互に複数形成した丸棒鋼からなり、その後端のねじ軸を可動盤３の下側面に突設した部材８に挿通し、ナットにより部材８に固定して、可動盤３から受圧盤２の下側面に突設した支持ブロック９の貫通孔内に水平に設けてある。   7 is a safety bar that prevents the mold closing movement of the movable platen 3 when the door is opened, and is made of a round bar steel in which a plurality of rearward engagement stepped portions 7a and frontward tapered surfaces 7b are alternately formed on one front side surface, The screw shaft at the rear end is inserted into the member 8 protruding from the lower surface of the movable platen 3 and fixed to the member 8 by a nut, and the support block 9 protruding from the movable plate 3 to the lower surface of the pressure receiving plate 2 is penetrated. It is provided horizontally in the hole.

１０は安全棒７の係止装置で、回動軸１１と、その回動軸１１の前端部に下向きに止着した縦長の鋼板による係止板１２と、回動軸１１を軸方向に摺動自在に挿通した軸受部材１３と、その軸受部材１３の側面に図４及び図５に示すように、ボルト１４により横向きに取付けて突設したブロック状の作動子１５と、軸受部材１３を回動自在に嵌合して固定した縦長の設置板１６とからなり、その設置板１６により回動軸１１を軸受部材１３を介して水平に保持している。   Reference numeral 10 denotes a locking device for the safety rod 7, a rotating shaft 11, a locking plate 12 made of a vertically long steel plate fixed to the front end portion of the rotating shaft 11, and the rotating shaft 11 sliding in the axial direction. As shown in FIGS. 4 and 5, a bearing member 13 that is movably inserted, a block-like actuator 15 that is mounted laterally with a bolt 14 and protrudes on a side surface of the bearing member 13, and a bearing member 13 are rotated. It comprises a vertically long installation plate 16 that is movably fitted and fixed. The installation plate 16 holds the rotating shaft 11 horizontally via the bearing member 13.

上記回動軸１１は、上下面に複数条のボール溝１１′を長手向に有するボールスプライン軸からなり、その前端部を小径に縮径して支軸１１ａに形成してある。この支軸１１ａに上記係止板１２が嵌挿され、キーで連結してねじビスにより止着される。また後端には抜止板１１ｂが取付けてある。なお、回動軸１１は普通のスプライン軸又は角軸であってもよい。
The rotating shaft 11 is composed of a ball spline shaft having a plurality of ball grooves 11 ′ in the longitudinal direction on the upper and lower surfaces, and its front end portion is reduced in diameter to be formed on the support shaft 11 a. The locking plate 12 is inserted into the support shaft 11a, connected with a key, and fixed with a screw screw. A retaining plate 11b is attached to the rear end. The rotating shaft 11 may be a normal spline shaft or a square shaft.

上記軸受部材１３は、筒状ケース１３ａとケース内に嵌合したボールナット部材１３ｂとからなり、そのボールナット部材１３ｂは、筒状ケース１３ａの一端にフランジ１３ｃをビス止めして固着してある。またボールナット部材１３ｂは回動軸１１のボール溝１１′と噛合する複数のボールを内面に有し、そのボールにより回動軸１１と軸受部材１３の両方を共に回転するように連結している。   The bearing member 13 includes a cylindrical case 13a and a ball nut member 13b fitted in the case, and the ball nut member 13b is fixed to one end of the cylindrical case 13a by screwing a flange 13c. . Further, the ball nut member 13b has a plurality of balls engaging with the ball groove 11 'of the rotating shaft 11 on the inner surface, and is connected so that both the rotating shaft 11 and the bearing member 13 are rotated by the balls. .

この軸受部材１３は、筒状ケース１３ａの開口端側を、上記設置板１６の板面の穴部に嵌合して設置板側面に回動自在に取付けてある。取付けは筒状ケース１３ａの開口端周囲の段部に環状のベアリング１７を嵌着し、そのベアリング１７と共に開口端を穴部に嵌合して、板面から突出した開口端を止め金１８により板面に固定して行っている。このように設置板１６に取付けた軸受部材１３では、筒状ケース１３ａの上記フランジ１３ｃにより塞がれた端部側が板面から突出しているので、その突出した側面に作動子１５を取付けている。   The bearing member 13 is rotatably attached to the side surface of the installation plate by fitting the opening end side of the cylindrical case 13a into the hole on the plate surface of the installation plate 16. For mounting, an annular bearing 17 is fitted to a step portion around the opening end of the cylindrical case 13a, the opening end together with the bearing 17 is fitted into the hole, and the opening end protruding from the plate surface is fixed by a stopper 18. It is fixed to the plate surface. In the bearing member 13 attached to the installation plate 16 in this way, the end portion side closed by the flange 13c of the cylindrical case 13a protrudes from the plate surface, and thus the actuator 15 is attached to the protruded side surface. .

上記構造の係止装置１０は、設置板１６を受圧盤２と可動盤３との間の機台上に立設して型締装置の側部に設けられる。その位置は軸受部材１３が閉扉位置の安全扉６が後端近傍の内側に備えるカム部材１９に隣位して、作動子１５がカム面に支持される所となる。カム部材１９は上面を可動盤に向けて傾斜形成した折曲板体で、傾斜上面は閉扉位置にて作動子１５を押し上げ、軸受部材１３と共に回動軸１１の前端部の係止板１２を、安全棒７の外側方に回動するのに充分な角度に形成してある。   The locking device 10 having the above-described structure is provided on the side of the mold clamping device by standing the installation plate 16 on a machine base between the pressure receiving plate 2 and the movable platen 3. The position is the position where the bearing member 13 is adjacent to the cam member 19 provided on the inner side in the vicinity of the rear end of the safety door 6 in the closed position, and the actuator 15 is supported by the cam surface. The cam member 19 is a bent plate body whose upper surface is inclined toward the movable platen, and the inclined upper surface pushes up the actuator 15 at the closed position, and the bearing plate 13 and the locking plate 12 at the front end of the rotating shaft 11 are moved. The safety rod 7 is formed at an angle sufficient to rotate outward.

上記係止板１２の取付けは、回動軸１１の支軸１１ａを支持ブロック９の貫通孔に挿入して、回動軸１１を安全棒７の上に並行に受圧盤２により支持したのち、貫通孔から突出した軸部に板上部を嵌挿し、図示しない並行キーとねじビスとを用いて行っている。軸部に止着した係止板１２は、自重により下側に位置する安全棒７の側面まで下向きに位置するようになる。
Mounting of the locking plate 12, by inserting the support shaft 11a of the rotation shaft 11 into the through hole of the support block 9, after supporting more receiving plate 2 in parallel the pivot shaft 11 on the safety bar 7 The upper part of the plate is inserted into the shaft protruding from the through hole, and a parallel key and a screw screw (not shown) are used. The locking plate 12 fixed to the shaft portion is positioned downward to the side surface of the safety rod 7 positioned on the lower side by its own weight.

係止板１２の外側には、受板２０が支軸１１ａの軸端に挿通して設けてある。この受板２０は図４に示すように、スペーサ２１と共にボルト２２により支持ブロック９に止着してあり、その受板２０から突出した軸端にスナップピン２３が差し設けてある。これにより係止板１２は支持ブロック９と受板２０との間に位置して前後面が受け持たれ、また回動軸１１の前端部と共に係止板１２が上記受圧盤２の下側部に連結された状態となって、受圧盤２と共に進退移動するようになる。   On the outside of the locking plate 12, a receiving plate 20 is provided so as to pass through the shaft end of the support shaft 11a. As shown in FIG. 4, the receiving plate 20 is fixed to the support block 9 by bolts 22 together with the spacers 21, and a snap pin 23 is provided at the shaft end protruding from the receiving plate 20. As a result, the locking plate 12 is positioned between the support block 9 and the receiving plate 20 so that the front and rear surfaces are supported. Are moved together with the pressure receiving panel 2.

図６に示す係止装置１０１は、回動軸１１を軸受部材１３を介して設置板１６に回動自在に固定する一方、支軸１１ａに嵌挿した係止板１２を、受圧盤２とと共に移動できるように構成してなる。この係止装置１０１では、回動軸１１及び前端部の支軸１１ａに断面が四角形の角軸を採用しており、その回動軸１１の後端部を軸受部材１３に嵌合して、ボルト２４により軸受部材１３の筒状ケース１３ａに止着し、軸受部材１３と共に回動するようにしている。なお、上記回動軸１１はスプライン軸であってもよく、場合によっては、回動軸１１を丸軸として前端部の支軸１１ａを角軸又はスプライン軸としてもよい。   The locking device 101 shown in FIG. 6 fixes the rotating shaft 11 to the installation plate 16 via the bearing member 13 so as to be rotatable, and the locking plate 12 fitted to the support shaft 11a is connected to the pressure receiving plate 2. It is comprised so that it can move with. In this locking device 101, a square shaft having a rectangular cross section is adopted for the rotating shaft 11 and the support shaft 11a of the front end portion, and the rear end portion of the rotating shaft 11 is fitted to the bearing member 13, The bolt 24 is fixed to the cylindrical case 13 a of the bearing member 13 and is rotated together with the bearing member 13. The rotation shaft 11 may be a spline shaft. In some cases, the rotation shaft 11 may be a round shaft and the support shaft 11a at the front end may be a square shaft or a spline shaft.

また係止板１２は、前後の支持ブロック９と受板２０と共に、支軸１１ａを摺動移動するように、支軸１１ａに止着せずに嵌挿したままにしてある。支持ブロック９の貫通孔には、軸受ナット２５がベアリング２６を設けて回動自在に嵌装してあり、その軸受ナット２５に角軸の支軸１１ａを挿通して、支軸１１ａの回動と、支軸１１ａにおける支持ブロック９及び係止板１２の摺動との両方がスムーズに行えるようにしてある。   In addition, the locking plate 12 is inserted into the support shaft 11a without being fixed so as to slide along the support shaft 11a together with the front and rear support blocks 9 and the receiving plate 20. A bearing nut 25 is provided in a through hole of the support block 9 so as to be rotatable by being provided with a bearing 26, and an angular support shaft 11 a is inserted into the bearing nut 25 to rotate the support shaft 11 a. And the sliding of the support block 9 and the locking plate 12 on the support shaft 11a can be performed smoothly.

上記構造の係止装置１０，１０１を備えた安全装置では、安全扉６の開扉によりカム部材９が受圧盤側に移動して作動子１５から外れると、図５に鎖線で示すように押し上げられていた作動子１５が、自重により下がって軸受部材１３と共に回動軸１１が回動する。この回動により係止板１２も回動軸１１と共に下側に回動して、板側面が安全棒７の側面に当たって止まり、また作動子１５が実線で示すように横向き止まって支持される。   In the safety device provided with the locking devices 10 and 101 having the above structure, when the cam member 9 moves to the pressure receiving plate side by the opening of the safety door 6 and is detached from the actuator 15, it is pushed up as shown by a chain line in FIG. The actuated actuator 15 is lowered by its own weight, and the rotating shaft 11 rotates together with the bearing member 13. As a result of this rotation, the locking plate 12 is also rotated downward together with the rotation shaft 11 so that the plate side surface comes into contact with the side surface of the safety rod 7 and stops, and the actuator 15 is supported laterally as indicated by the solid line.

この安全棒７の側面に対する係止板１２の位置が、係合段部７ａから離れた側面や傾斜面７ｂであっても、係止板１２には自重と作動子１５の荷重とが掛かっているので、不測の事態により可動盤３が安全棒７と共に型閉方向に移動すると、係止板１２が側面の窪みに入り込んで係合段部７ａと係合するようになる。したがって、その移動寸法だけ可動盤３の型閉方向への移動は許容されるが、係合後は安全棒７の移動が係止板１２により阻止され、その係合位置に可動盤３は強制的に停止させられる。これにより開扉時の安全性が確実に維持される。   Even if the position of the locking plate 12 with respect to the side surface of the safety bar 7 is the side surface or the inclined surface 7b away from the engaging step 7a, the locking plate 12 is subjected to its own weight and the load of the actuator 15. Therefore, when the movable platen 3 moves together with the safety rod 7 in the mold closing direction due to an unexpected situation, the locking plate 12 enters the side recess and engages with the engaging step portion 7a. Accordingly, the movable plate 3 is allowed to move in the mold closing direction by the moving dimension, but after the engagement, the movement of the safety bar 7 is blocked by the locking plate 12, and the movable plate 3 is forced to the engagement position. Can be stopped. Thereby, the safety at the time of door opening is reliably maintained.

安全扉６を閉じると、カム部材１９が作動子１５の所まで戻り、傾斜上面により横向きに突出している作動子１５を押し上げる。これにより軸受部材１３は回動軸１１と共に上側に回動し、同時に同軸上の係止板１２も上側に回動傾斜してして安全棒７の外側方に逃げ、係合段部７ａから外れて係合が解除される。また閉扉状態ではカム部材１９により作動子１５が斜め上方に保持されるので、係止板１２も安全棒７から外れた外側方に傾斜保持され、安全棒７と係合することはないので、係止板１２が可動盤３の移動障害とならず、型開閉操作を行うことができる。   When the safety door 6 is closed, the cam member 19 returns to the position of the actuator 15 and pushes up the actuator 15 protruding laterally by the inclined upper surface. As a result, the bearing member 13 pivots upward together with the pivot shaft 11, and at the same time, the coaxial locking plate 12 also pivots upward to escape to the outside of the safety bar 7, and from the engagement step 7 a. The engagement is released and released. In addition, since the actuator 15 is held obliquely upward by the cam member 19 in the closed state, the locking plate 12 is also held obliquely outwardly from the safety rod 7 and does not engage with the safety rod 7. The locking plate 12 does not obstruct the movement of the movable platen 3, and the mold opening / closing operation can be performed.

通常、トグル機構５を備えた型締装置では、固定盤１と可動盤３との対向面に取付けた金型３０の型厚が異なるごとに、受圧盤２の位置調整を行っている。受圧盤２を前進移動して型厚調整を行うと、係止装置１０では、図３に示すように軸受部材１３に嵌挿支持された回動軸１１と、その前端部の係止板１２とが受圧盤２と共に移動する。係止装置１０１では回動軸１１は移動せず、係止板１２が受圧盤２と共に移動する。その何れにおいても設置板１６に支持された軸受部材１３の位置は変わらない。   Normally, in the mold clamping device provided with the toggle mechanism 5, the position of the pressure receiving plate 2 is adjusted every time the mold thickness of the mold 30 attached to the opposed surfaces of the fixed platen 1 and the movable platen 3 is different. When the pressure receiving platen 2 is moved forward to adjust the mold thickness, in the locking device 10, as shown in FIG. 3, the rotating shaft 11 fitted and supported by the bearing member 13 and the locking plate 12 at the front end thereof are provided. Moves together with the pressure receiving panel 2. In the locking device 101, the rotation shaft 11 does not move, and the locking plate 12 moves together with the pressure receiving plate 2. In either case, the position of the bearing member 13 supported by the installation plate 16 does not change.

したがって、回動軸１１を回動作動する軸受部材１３は、閉扉位置の安全扉６のカム部材１９に常に隣位しているので、係止装置１０，１０１は受圧盤２の位置（型厚）に左右されることなく、安全扉６の開閉に伴い上下動する軸受部材１３の作動子１５により作動して、係止板１２による安全棒７との係合及び解除を行い。開扉時における可動盤３の型閉移動を確実に防止する。   Accordingly, since the bearing member 13 that rotates the rotation shaft 11 is always adjacent to the cam member 19 of the safety door 6 in the closed position, the locking devices 10 and 101 are positioned at the position of the pressure receiving plate 2 (the mold thickness). ), The engagement member 12 engages and releases the safety rod 7 by the actuator 15 of the bearing member 13 that moves up and down as the safety door 6 opens and closes. The mold closing movement of the movable platen 3 when the door is opened is surely prevented.

また係止装置１０，１０１は、設置板１６を受圧盤２と可動盤３との間の機台上に立設して受圧盤２とにわたり設けられるので、回動軸１１の長さが必要最小限で済み、長さの短縮により回動軸１１が撓み難くなるので、従来よりも小径の軸部材を採用して装置の小型化を図ることができる。また係止装置の全てが受圧盤２と可動盤３との間にあるので、固定盤と可動盤間に設けた場合の成形品の取出作業や金型取付作業時の不都合も生じない。   Further, since the locking devices 10 and 101 are provided over the pressure receiving plate 2 by standing the installation plate 16 on the machine base between the pressure receiving plate 2 and the movable plate 3, the length of the rotating shaft 11 is required. Since the rotation shaft 11 is difficult to bend due to the minimum length and the length is shortened, it is possible to reduce the size of the apparatus by adopting a shaft member having a smaller diameter than the conventional one. Further, since all of the locking devices are between the pressure receiving plate 2 and the movable platen 3, there is no inconvenience at the time of taking out the molded product or attaching the mold when it is provided between the fixed platen and the movable platen.

なお、図示の型締装置はトグル機構５の屈伸により型開閉及び型締を行うものであるが、この発明は、可動盤による型閉間隔の調整により型厚調整を行い得る直圧式型締装置にも適用できるので、取付対象とする型締装置を図示のトグル式に限定されるものではない。   Although the illustrated mold clamping apparatus performs mold opening / closing and mold clamping by bending and extending the toggle mechanism 5, the present invention is a direct pressure type mold clamping apparatus capable of adjusting the mold thickness by adjusting the mold closing interval with a movable platen. Therefore, the clamping device to be attached is not limited to the illustrated toggle type.

この発明に係わる安全装置を備えた型締装置の側面図である。It is a side view of the mold clamping device provided with the safety device concerning this invention. この発明に係わる安全装置の型厚調整前の側面図である。It is a side view before mold thickness adjustment of the safety device concerning this invention. 同じく型厚調整後の側面図である。It is a side view after mold thickness adjustment similarly. 同上の安全装置の平断面図である。It is a plane sectional view of a safety device same as the above. 開扉状態における軸受部材部分の縦断後面図である。It is a longitudinal rear view of the bearing member portion in the open door state. この発明の他の実施形態の平断面図である。It is a plane sectional view of other embodiments of this invention.

符号の説明Explanation of symbols

１ 固定盤
２ 受圧盤
３ 可動盤
５ トグル機構
６ 安全扉
７ 安全棒
９ 支持ブロック
１０，１０１ 係止装置
１１ 回動軸
１１ａ 支軸
１２ 係止板
１３ 軸受部材
１５ 作動子
１６ 設置板
１９ カム部材
２０ 受板
２４ ボルト
２５ 軸受ナット DESCRIPTION OF SYMBOLS 1 Fixed board 2 Pressure board 3 Movable board 5 Toggle mechanism 6 Safety door 7 Safety rod 9 Support block 10,101 Locking device 11 Rotating shaft 11a Support shaft 12 Locking plate 13 Bearing member 15 Actuator 16 Installation plate 19 Cam member 20 Receiving plate 24 Bolt 25 Bearing nut

Claims (2)

可動盤の下側から受圧盤に水平に突設した安全棒と、その安全棒の側面に形成した係合段部と係合して、可動盤の型閉移動を阻止する係止板を備えた係止装置とからなり、
その係止装置を、前端部を支軸に形成したスプライン軸又は角軸による回動軸と、その回動軸の前端部の支軸に下向きに止着した上記係止板と、回動軸を軸方向に摺動自在に挿通した軸受部材と、その軸受部材の側面に横向きに突設した作動子と、軸受部材を回動自在に嵌合して支持した設置板とから構成し、
その設置板を、閉扉位置の安全扉が備えるカム部材に上記軸受部材が隣位し、かつ上記作動子がカム部材に支持される受圧盤と可動盤との間の機台上に立設する一方、上記回動軸を受圧盤側面の支持ブロックに支軸を回動自在に挿通して安全棒の上に並行に支持するとともに、前端部を上記係止板と共に受圧盤に連結し、該回動軸と上記安全棒の係合段部に位置した係止板とが受圧盤と共に進退移動するように構成してなることを特徴とする型締装置の安全装置。 Provided with a safety bar that protrudes horizontally from the lower side of the movable plate to the pressure receiving plate, and a locking plate that engages with an engaging step formed on the side of the safety rod to prevent the movable plate from closing the mold A locking device,
The locking device includes a rotation shaft formed by a spline shaft or a square shaft having a front end portion as a support shaft, the locking plate fixed downward to the support shaft at the front end portion of the rotation shaft, and a rotation shaft. was constituted by a bearing member which is slidably inserted in the axial direction, an actuating element which projects laterally on a side surface of the bearing member, mounting plate and that supports fitted a bearing member rotatably,
The installation plate is erected on the machine base between the pressure receiving plate and the movable plate, the bearing member being adjacent to the cam member of the safety door at the closed door position, and the actuator being supported by the cam member. On the other hand, the pivot shaft is inserted into a support block on the side surface of the pressure receiving plate so as to rotate freely and is supported on the safety rod in parallel, and the front end portion is connected to the pressure receiving plate together with the locking plate, A safety device for a mold clamping device, wherein the rotating shaft and a locking plate positioned at an engaging step portion of the safety rod are configured to move forward and backward together with a pressure receiving plate. 可動盤の下側から受圧盤に水平に突設した安全棒と、その安全棒の側面に形成した係合段部と係合して、可動盤の型閉移動を阻止する係止板を備えた係止装置とからなり、
その係止装置を、少なくとも前端部がスプライン軸又は角軸の支軸に形成された回動軸と、その支軸に下向きに嵌挿した上記係止板と、回動軸の後端を嵌合止着した軸受部材と、その軸受部材の側面に横向きに突設した作動子と、軸受部材を回動自在に嵌合して支持した設置板とから構成し、
その設置板を、閉扉位置の安全扉が備えるカム部材に上記軸受部材が隣位し、かつ上記作動子がカム部材に支持される受圧盤と可動盤との間の機台上に立設する一方、上記回動軸を受圧盤側面の支持ブロックに支軸を回動かつ摺動自在に挿通して安全棒の上に並行に支持するとともに、係止板を支持ブロックと共に支軸を摺動移動するように該支軸に挿通し、上記安全棒の係合段部に位置した係止板が回動軸との嵌合を維持しながら受圧盤と共に進退移動するように構成してなることを特徴とする型締装置の安全装置。 Provided with a safety bar that protrudes horizontally from the lower side of the movable plate to the pressure receiving plate, and a locking plate that engages with an engaging step formed on the side of the safety rod to prevent the movable plate from closing the mold A locking device,
The locking device, fitted with pivot shaft at least the front end portion is formed in the support shaft of the spline shaft or square shaft, and the locking plate having fitted downward on the support shaft, the rear end of the rotary shaft It was composed of a Gotomegi the bearing member, an actuating element which projects laterally on a side surface of the bearing member, mounting plate and that supports fitted a bearing member rotatably,
The installation plate is erected on the machine base between the pressure receiving plate and the movable plate, the bearing member being adjacent to the cam member of the safety door at the closed door position, and the actuator being supported by the cam member. on the other hand, sliding the shaft with the retaining plate together with the support block to support in parallel on said rotary shaft and is inserted slidably One move the supporting shaft rotating the support block of the pressure receiving plate side safety bar The locking plate is inserted into the support shaft so as to move, and the locking plate located at the engaging step portion of the safety rod is configured to move forward and backward together with the pressure receiving plate while maintaining the fitting with the rotating shaft. A safety device for a mold clamping device.
JP2004185025A 2004-06-23 2004-06-23 Clamping device safety device Expired - Lifetime JP4315446B2 (en)

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