JP2007083607A - Electric injection device - Google Patents

Electric injection device Download PDF

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JP2007083607A
JP2007083607A JP2005276324A JP2005276324A JP2007083607A JP 2007083607 A JP2007083607 A JP 2007083607A JP 2005276324 A JP2005276324 A JP 2005276324A JP 2005276324 A JP2005276324 A JP 2005276324A JP 2007083607 A JP2007083607 A JP 2007083607A
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front plate
supply block
plate
injection device
electric injection
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JP4382730B2 (en
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Hiroo Okubo
浩男 大久保
Isamu Yamaguchi
勇 山口
Kazuhiko Nishizawa
一彦 西澤
Yoichi Ide
陽一 井出
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Nissei Plastic Industrial Co Ltd
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Nissei Plastic Industrial Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent a front plate constituting the front structure of an electric injection device from being highly heated due to heat transfer, by controlling the temperature of the front plate itself. <P>SOLUTION: A screwed driven body is inserted through a guide shaft connected with a pair of the front and back support plates in a way that the body freely moves back and forth. A feed block is installed at the center of the front of the front plate. An injection heating cylinder is fixed at the feed block with its end going through the feed block and the front plate. Coolant passages of the coolant controlling the heating of the front plate are provided inside the front plate. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、射出加熱筒からの伝熱による前プレートの昇温を制御した電動式射出装置に関するものである。   The present invention relates to an electric injection device that controls the temperature rise of a front plate by heat transfer from an injection heating cylinder.

射出装置では、射出加熱筒に供給された材料樹脂を成形温度に加熱しながら射出スクリュの回転により可塑化したのち、射出加熱筒先端のノズルから可塑化された樹脂を金型に射出している。このため射出加熱筒からの伝熱が他の個所に及んで不具合が生じないように、供給ブロックに加熱を制御する温調手段を設け、また供給ブロックと射出加熱筒の保持体との間に断熱材を設けたりしている。また電動式射出装置では駆動用のボールねじ軸の高温化を冷却により防止したり、ボールねじ軸とボールナットの螺合部の潤滑不良を防止するために、ボールナットを水冷又は空冷することが試みられている。
特開２００４−１６０６８８１号公報 実開平５−１６２６６号公報 特開２００２−２７３７７０号公報 In the injection device, the material resin supplied to the injection heating cylinder is plasticized by rotating the injection screw while heating to the molding temperature, and then the plasticized resin is injected into the mold from the nozzle at the tip of the injection heating cylinder. . For this reason, temperature control means for controlling heating is provided in the supply block so that heat transfer from the injection heating cylinder does not occur at other locations, and the heating block is provided between the supply block and the holder of the injection heating cylinder. Insulation is provided. In addition, in the electric injection device, the ball nut may be cooled with water or air to prevent the driving ball screw shaft from being heated at a high temperature and to prevent poor lubrication of the screwed portion of the ball screw shaft and the ball nut. Has been tried.
JP 2004-160881 A Japanese Utility Model Laid-Open No. 5-16266 JP 2002-273770 A

前後一対の支持用のプレートに連結した複数本のガイドシャフトに、スクリュ駆動体を挿通支持した電動式射出装置、またはガイドシャフトと平行にして前後プレートに２本のボールねじ軸を回転自在に設けた電動式射出装置では、前部プレートに射出加熱筒を取付けていることから、射出加熱筒からの伝熱により前プレートの温度が高くなる傾向にある。前プレートが高温になると熱膨張による歪みが大きくなり易く、これが前プレートと後プレートさらにはスクリュ駆動体との熱膨張差による装置の歪みとなって、装置精度にも影響するようになる。   Two guide screw shafts connected to a pair of front and rear support shafts, an electric injection device that inserts and supports a screw drive, or two ball screw shafts on the front and rear plates in a rotatable manner in parallel with the guide shaft In the electric injection device, since the injection heating cylinder is attached to the front plate, the temperature of the front plate tends to increase due to heat transfer from the injection heating cylinder. When the front plate becomes high temperature, distortion due to thermal expansion tends to increase, and this becomes distortion of the apparatus due to a difference in thermal expansion between the front plate, the rear plate, and the screw drive body, and affects the apparatus accuracy.

前プレートの昇温は、射出加熱筒からの伝熱を遮断することによって防止できる。しかし、従来の供給ブロックの温調による伝熱の制御では、射出加熱筒における加熱効率を考慮して行う必要があることから限界があり、このため供給ブロックの温調をもって前プレートの温度を制御することは難しい。また断熱材による遮断効率は肉厚に比例するので、厚肉の断熱材でなければ充分といえず、供給ブロックの温調手段と併用しても、前プレートに装着した射出加熱筒の後端部からの伝熱は防止できないので効率としてはあまり期待できない。またボールねじ軸を冷却したり、スクリュ駆動体のボールナット部材を冷却しても、その冷却により前プレートまでをも温度制御することは困難なことである。   The temperature rise of the front plate can be prevented by blocking the heat transfer from the injection heating cylinder. However, conventional heat transfer control by temperature control of the supply block is limited because it is necessary to consider the heating efficiency of the injection heating cylinder, and therefore the temperature of the front plate is controlled by temperature control of the supply block. Difficult to do. Also, since the insulation efficiency by the heat insulating material is proportional to the wall thickness, it cannot be said that it is sufficient if it is a thick wall heat insulating material. Even if it is used together with the temperature control means of the supply block, the rear end of the injection heating cylinder attached to the front plate Since heat transfer from the part cannot be prevented, the efficiency cannot be expected so much. Even if the ball screw shaft is cooled or the ball nut member of the screw driving body is cooled, it is difficult to control the temperature up to the front plate by the cooling.

この発明の目的は、ガイドシャフトやボールねじ軸、供給ブロック及び射出加熱筒の取付けによって、装置の前部構造の一部をなす前プレートの伝熱による高温化を、前プレート自体の温度制御を以て防止することができる電動式射出装置を提供することにある。   The object of the present invention is to increase the temperature by heat transfer of the front plate that forms part of the front structure of the apparatus by attaching the guide shaft, ball screw shaft, supply block, and injection heating cylinder, and by controlling the temperature of the front plate itself. An object of the present invention is to provide an electric injection device that can be prevented.

上記目的によるこの発明は、前後一対の支持用のプレートに連結した複数本のガイドシャフトと、そのガイドシャフトに挿通してプレート間に進退自在に設けたスクリュ駆動体と、そのスクリュ駆動体と後プレートにわたり設けたボールねじ軸とボールナット部材とによる電動駆動手段と、前プレートの前面中央に取付けた供給ブロックと、その供給ブロックと前プレートに後端部を貫通して該供給ブロックに固設した射出加熱筒とからなる電動式射出装置において、上記前プレートの内部に該前プレートの加熱を制御する冷媒の冷却路を設けてなる、というものである。   According to the above-described object, the present invention includes a plurality of guide shafts connected to a pair of front and rear support plates, a screw drive body that is inserted through the guide shafts and is movable between the plates, and the screw drive body and the rear Electric drive means using a ball screw shaft and a ball nut member provided over the plate, a supply block attached to the center of the front surface of the front plate, and the supply block and the front plate are fixed to the supply block through the rear end. In the electric injection apparatus comprising the injection heating cylinder, a coolant cooling path for controlling the heating of the front plate is provided inside the front plate.

またこの発明は、前後一対の支持用のプレートに連結した複数本のガイドシャフトと、そのガイドシャフトと平行にして前後一対の支持用のプレートにボール軸受をもって回転自在に設けた２本のボールねじ軸と、ガイドシャフトに挿通するとともにボールナット部材をボールねじ軸に螺合して、プレート間に進退自在に設けたスクリュ駆動体と、後プレートに取付けたスクリュ駆動体の電動駆動機構と、前プレートの前面中央に取付けた供給ブロックと、その供給ブロックと前プレートに後端部を貫通して該供給ブロックに固設した射出加熱筒とからなる電動式射出装置において、上記前プレートの内部に該前プレートと上記ボール軸受の加熱を制御する冷媒の冷却路を設けてなる、というものである。   The present invention also includes a plurality of guide shafts connected to a pair of front and rear support plates, and two ball screws provided in parallel with the guide shafts and rotatably provided with a ball bearing on a pair of front and rear support plates. A screw drive body that is inserted through the shaft and the guide shaft and screwed into the ball screw shaft to be moved forward and backward between the plates, an electric drive mechanism of the screw drive body attached to the rear plate, In the electric injection apparatus comprising a supply block attached to the front center of the plate, and an injection heating cylinder fixed to the supply block through the rear end of the supply block and the front plate, the interior of the front plate A coolant cooling path for controlling the heating of the front plate and the ball bearing is provided.

またこの発明は、上記供給ブロックの内部に冷却路を設け、その冷却路の冷媒による温調手段を供給ブロックに設けてなり、また上記前プレートと供給ブロックとの間に断熱板を設けてなる、というものである。   Further, according to the present invention, a cooling path is provided in the supply block, temperature control means using a refrigerant in the cooling path is provided in the supply block, and a heat insulating plate is provided between the front plate and the supply block. That's it.

上記構成では、冷媒による温度制御によって長時間にわたり成形作業を継続しても前プレートが高温とならず、ガイドシャフトにも伝熱の影響が及ばないので、ガイドシャフトにより前プレートと連結されている後プレートとの熱膨張差、さらにはスクリュ駆動体との熱膨張差による装置の歪みが生じ難くなる。また前プレートに内設したボール軸受も伝熱により高温とならず、摩擦による発熱も抑制されることから潤滑剤の加熱劣化も防止されるようになる。   In the above configuration, even if the molding operation is continued for a long time by temperature control using the refrigerant, the front plate does not become high temperature, and the guide shaft is not affected by heat transfer. Therefore, the guide shaft is connected to the front plate. The apparatus is less likely to be distorted due to a difference in thermal expansion from the rear plate and further from a difference in thermal expansion from the screw driver. Further, the ball bearing provided in the front plate does not become high temperature due to heat transfer, and heat generation due to friction is suppressed, so that deterioration of the lubricant due to heating is prevented.

また前プレートに加えて供給ブロックにも冷媒による温調手段を設けた場合には、供給ブロックにおいてある程度の伝熱の抑制が行えることから、前プレートへの伝熱量が低減し、前プレートにおける冷媒の吸熱効率が一段と向上する。さらに断熱材により前プレートと供給ブロックとを断熱することによって前プレートへの伝熱量が著しく低減するので、成形温度が高い樹脂を材料として成形を行う場合でも前プレートにおける温度制御を効率よく行え、しかも前プレートと供給ブロックの両方が冷媒により温度制御されているので、断熱材は薄いものでも充分にその効果を発揮する。これにより断熱材が介在しても前プレートと供給ブロックの連結が容易に堅牢に行うことができ、断熱材の介在がない場合と同様な取付け強度を有する。   In addition, if the supply block is provided with temperature control means using the refrigerant in addition to the front plate, the amount of heat transfer to the front plate can be reduced because the heat transfer can be suppressed to some extent in the supply block. The heat absorption efficiency is further improved. Furthermore, the amount of heat transfer to the front plate is significantly reduced by insulating the front plate and the supply block with a heat insulating material, so even when molding with a resin having a high molding temperature, the temperature control on the front plate can be performed efficiently. In addition, since both the front plate and the supply block are temperature controlled by the refrigerant, even if the heat insulating material is thin, the effect is sufficiently exhibited. Thereby, even if a heat insulating material is interposed, the front plate and the supply block can be easily and firmly connected to each other, and the mounting strength is the same as in the case where there is no heat insulating material.

図１は、駆動用のボールねじ軸が一軸の電動式射出装置を示すものである。
図中１，２は前後一対の支持用のプレートで、四隅部にガイドシャフト３，３が連結してある。４は中央に射出スクリュ４ａの後端部を回転自在に連結したスクリュ駆動体で、図では省略したが、射出スクリュ４ａを回転して材料計量を行う電動モータが取付けてある。このスクリュ駆動体４はガイドシャフト３，３に挿通してプレート１，２の間に進退自在に設けてある。 FIG. 1 shows an electric injection device having a single ball screw shaft for driving.
In the figure, reference numerals 1 and 2 denote a pair of front and rear support plates, and guide shafts 3 and 3 are connected to the four corners. Reference numeral 4 denotes a screw drive body in which the rear end portion of the injection screw 4a is rotatably connected to the center, and an electric motor for rotating the injection screw 4a to measure the material is attached. The screw driving body 4 is inserted between the guide shafts 3 and 3 and is provided between the plates 1 and 2 so as to freely advance and retract.

このスクリュ駆動体４の背面のボールナット部材５には、後プレート３に回転自在に取付けた駆動用のボールねじ軸６が螺合してあり、そのボールねじ軸６を回転してスクリュ駆動体４を前進駆動する電動サーボモータ７と伝動ベルト８とによる電動駆動機構９が後プレート２に取付けてある。また前プレート１の前面中央には、上部に供給口１１を有する供給ブロック１２が設けてあり、その供給ブロック１２に加熱手段を外周に有する射出加熱筒１３が、後端部を供給ブロック１２と前プレート１に設けた中央穴部１０（図５又は図８参照）に貫通して、該供給ブロック１２に固設してある。   The ball nut member 5 on the back surface of the screw driving body 4 is screwed with a driving ball screw shaft 6 rotatably attached to the rear plate 3, and the ball screw shaft 6 is rotated to rotate the screw driving body. An electric drive mechanism 9 including an electric servo motor 7 for driving 4 forward and a transmission belt 8 is attached to the rear plate 2. In addition, a supply block 12 having a supply port 11 at the top is provided at the center of the front surface of the front plate 1. An injection heating cylinder 13 having heating means on the outer periphery of the supply block 12 has a rear end at the supply block 12. It passes through a central hole 10 (see FIG. 5 or FIG. 8) provided in the front plate 1 and is fixed to the supply block 12.

図２は、駆動用のボールねじ軸が二軸の電動式射出装置を示すものである。
この電動式射出装置では、プレート１，２に連結したガイドシャフト３，３と平行に２本のボールねじ６１，６１を、プレート１，２にわたりボール軸受１４を用いて回転自在に設け、そのボールねじ６１，６１に両側内に設けたボールナット部材５１，５１をそれぞれ螺合して、スクリュ駆動体４をプレート間に進退自在に設けている。またボールねじ軸６１の回転は、図では省略するが後プレート２に取付けた電動駆動機構により同時に行えるようにしてある。 FIG. 2 shows an electric injection device having two drive ball screw shafts.
In this electric injection device, two ball screws 61 and 61 are provided in parallel with the guide shafts 3 and 3 connected to the plates 1 and 2 so as to be rotatable over the plates 1 and 2 by using a ball bearing 14. Ball nut members 51 and 51 provided on both sides are screwed to the screws 61 and 61, respectively, so that the screw drive body 4 is provided between the plates so as to freely advance and retract. The ball screw shaft 61 can be rotated simultaneously by an electric drive mechanism attached to the rear plate 2 although not shown in the figure.

上記前プレート１の内部と供給ブロック１２の内部には、図３以下に示すように冷却路１５，１６が設けてあり、その冷却路１５，１６を流動する冷媒により前プレート１と供給ブロック１２の温度を冷媒温度付近まで温調できるようにしてある。また前プレート１と供給ブロック１２との間に板状の断熱材１７を設け、その断熱材１７により供給ブロック１２から前プレート１への伝熱が低減するようにしてある。この供給ブロック１２の温度制御と断熱材１７による伝熱の低減は、樹脂の成形温度が高く、前プレート１の冷媒による温度制御では伝熱の影響を充分に抑え難いときに併用される。   Cooling passages 15 and 16 are provided inside the front plate 1 and the supply block 12 as shown in FIG. 3 and subsequent figures, and the front plate 1 and the supply block 12 are cooled by the refrigerant flowing through the cooling passages 15 and 16. The temperature can be adjusted to near the refrigerant temperature. Further, a plate-like heat insulating material 17 is provided between the front plate 1 and the supply block 12, and heat transfer from the supply block 12 to the front plate 1 is reduced by the heat insulating material 17. The temperature control of the supply block 12 and the reduction of heat transfer by the heat insulating material 17 are used together when the resin molding temperature is high and it is difficult to sufficiently suppress the influence of heat transfer by the temperature control by the refrigerant of the front plate 1.

図３及び図４に示す冷却路１５は、図１に示す構造の電動式射出装置に適用可能な冷却路で、図５に示すように、前プレート１の片側面から中央穴部１０の上下に穿孔を並設し、その穿孔の先端を上面からの穿孔により接続して、上下開口のいずれか一方を入口、他方を出口とする横型の冷却路１５に形成している。   The cooling path 15 shown in FIGS. 3 and 4 is a cooling path applicable to the electric injection apparatus having the structure shown in FIG. 1, and as shown in FIG. Perforations are arranged side by side, and the tips of the perforations are connected by perforation from the upper surface to form a horizontal cooling passage 15 having one of the upper and lower openings as an inlet and the other as an outlet.

図６及び図７に示す前プレート１の冷却路１５は、図２に示す構造の電動式射出装置に適用可能な冷却路で、図８に示すように、前プレート１の上面から中央穴部１０の左右に穿孔を並設し、その穿孔の下端を外部の管路１５ａにより接続して、上面の左右開口のいずれか一方を入口、他方を出口とする冷却路１５に形成している。このような冷却路１５は中央穴部１０とボール軸受１４の間に介在するので、これによりボール軸受１４の温調も可能となる。   The cooling path 15 of the front plate 1 shown in FIG. 6 and FIG. 7 is a cooling path applicable to the electric injection device having the structure shown in FIG. 2, and as shown in FIG. Perforations are juxtaposed on the left and right of 10 and the lower ends of the perforations are connected by an external pipe line 15a to form a cooling path 15 having one of the left and right openings on the upper surface as an inlet and the other as an outlet. Since such a cooling path 15 is interposed between the central hole 10 and the ball bearing 14, it is possible to adjust the temperature of the ball bearing 14.

また供給ブロック１２の冷却路１６は、図５及び図８に示すように、ブロック下面から中央穴部１０の左右に前後一対の穿孔を並設し、その左右の穿孔の下部を中央穴部１０の下側のブロック側面からの穿孔により接続するとともに、片側の前後一対の穿孔の上部をブロック正面からの穿孔により接続し、側面及び正面からの穿孔の開口を閉塞して前後一対の連通孔に形成し、その連通孔の上部のそれぞれをブロック側面からの穿孔と接続して、左右開口のいずれか一方が入口、他方が出口となった冷却路１６に形成している。   As shown in FIGS. 5 and 8, the cooling path 16 of the supply block 12 has a pair of front and rear perforations provided in parallel on the left and right sides of the central hole 10 from the lower surface of the block, and the lower portions of the left and right perforations are formed in the central hole 10. The upper part of a pair of front and rear perforations is connected by perforation from the front of the block, and the openings of the perforations from the side and front are closed to form a pair of front and rear communication holes. Each of the upper portions of the communication holes is connected to a perforation from the side surface of the block, and a cooling passage 16 is formed in which one of the left and right openings is an inlet and the other is an outlet.

このような配置の冷却路１６では、図５に示すように、前プレート１の上下に並設した冷却路１５との重なりにより、正面から見た投影面において、射出加熱筒１３の後端部が貫通位置する中央穴部１０の上下左右を囲む格子状の冷却路を形成し、その両方により射出加熱筒１３の後端部からの伝熱を効率よく抑えて低減するようになる。   In the cooling path 16 having such an arrangement, as shown in FIG. 5, the rear end portion of the injection heating cylinder 13 on the projection surface viewed from the front due to the overlap with the cooling paths 15 arranged in parallel above and below the front plate 1. A grid-like cooling path surrounding the upper, lower, left, and right sides of the central hole portion 10 through which is inserted is formed, and both of them efficiently suppress and reduce heat transfer from the rear end portion of the injection heating cylinder 13.

上記前プレート１では、冷却路１５を流動する冷媒により前プレート１の熱が吸熱されて冷媒とほぼ同じ温度に維持されるので、射出加熱筒１３の後端部からの伝熱により前プレート１が加熱を受けると、その熱量は吸熱により減少して長時間にわたり成形作業を継続しても前プレート１が高温にならない。このためガイドシャフト３，３にも伝熱の影響が及ばないので、ガイドシャフト３，３により前プレート１と連結されている後プレート２との熱膨張差、さらにはスクリュ駆動体４との熱膨張差による装置の歪みが生じ難くなって、装置精度が保たれるようになる。またボールねじ軸６１，６１を回転自在に軸承する前プレート１の両側のボール軸受１４，１４にも伝熱が及ばず、回転摩擦による発熱も抑制されることから潤滑剤の加熱劣化も防止されるようになる。   In the front plate 1, since the heat of the front plate 1 is absorbed by the refrigerant flowing through the cooling path 15 and is maintained at substantially the same temperature as the refrigerant, the front plate 1 is heated by heat transfer from the rear end portion of the injection heating cylinder 13. When heated, the amount of heat decreases due to heat absorption, and the front plate 1 does not reach a high temperature even if the molding operation is continued for a long time. For this reason, the guide shafts 3 and 3 are not affected by heat transfer. Therefore, the difference in thermal expansion from the rear plate 2 connected to the front plate 1 by the guide shafts 3 and 3, and further the heat from the screw driver 4. The apparatus is less likely to be distorted due to a difference in expansion, and the apparatus accuracy is maintained. Further, heat transfer does not reach the ball bearings 14 and 14 on both sides of the front plate 1 that rotatably supports the ball screw shafts 61 and 61, and heat generation due to rotational friction is suppressed, so that deterioration of the lubricant due to heating is prevented. Become so.

また前プレート１に加えて供給ブロック１２にも冷却路１６を設けて、その冷却路１６を流動する冷媒により温度制御を行うと、供給ブロック１２においても伝熱の制御が行えることから、前プレート１への伝熱量が低減して前プレート１における冷媒の吸熱効率が一段と向上する。さらに断熱材１７により前プレート１と供給ブロックとを断熱することによって、前プレート１への伝熱量が著しく低減するので、成形温度が高い樹脂を材料として成形を行う場合でも、前プレート１における温度制御が効率よく行え、しかも前プレート１と供給ブロック１２の両方が冷媒により温度制御されているので、断熱材１７は薄いものでも充分にその効果を発揮する。これにより断熱材１７が介在しても前プレート１と供給ブロック１２の連結が容易に堅牢に行うことができ、断熱材１７の介在がない場合と同様な取付け強度を有する。   Further, if the cooling block 16 is provided in the supply block 12 in addition to the front plate 1 and the temperature control is performed by the refrigerant flowing through the cooling path 16, the heat transfer can be controlled also in the supply block 12. The heat transfer amount to 1 is reduced, and the heat absorption efficiency of the refrigerant in the front plate 1 is further improved. Furthermore, since the amount of heat transfer to the front plate 1 is significantly reduced by insulating the front plate 1 and the supply block with the heat insulating material 17, the temperature in the front plate 1 can be obtained even when molding is performed using a resin having a high molding temperature. Since the control can be performed efficiently and the temperature of both the front plate 1 and the supply block 12 is controlled by the refrigerant, even if the heat insulating material 17 is thin, the effect is sufficiently exhibited. Thereby, even if the heat insulating material 17 is interposed, the front plate 1 and the supply block 12 can be easily and firmly connected to each other, and has the same mounting strength as the case where the heat insulating material 17 is not interposed.

この発明が対象とする一軸のボールねじ軸を備えた電動式射出装置の略示平面図であるFIG. 2 is a schematic plan view of an electric injection device provided with a uniaxial ball screw shaft targeted by the present invention. 同じく二軸のボールねじ軸を備えた電動式射出装置の略示平面図である。FIG. 2 is a schematic plan view of an electric injection device that similarly includes a biaxial ball screw shaft. この発明による一軸のボールねじ軸を備えた電動式射出装置の前部構造の平面図である。It is a top view of the front part structure of the electric injection device provided with the uniaxial ball screw axis by this invention. 同じく他の実施形態の前部構造の平面図である。It is a top view of the front part structure of other embodiments similarly. 前部構造の正面図である。It is a front view of a front part structure. この発明による二軸のボールねじ軸を備えた電動式射出装置の前部構造の平面図である。It is a top view of the front part structure of the electric injection device provided with the biaxial ball screw axis by this invention. 同じく他の実施形態の前部構造の平面図である。It is a top view of the front part structure of other embodiments similarly. 前部構造の正面図である。It is a front view of a front part structure.

符号の説明Explanation of symbols

１ 前プレート
２ 後プレート
３ ガイドシャフト
４ スクリュ駆動体
５，５１ ボールナット部材
６，６１ ボールねじ軸
１０ 中央穴部
１１ 供給口
１２ 供給ブロック
１３ 射出加熱筒
１４ ボール軸受
１５ 前プレートの冷却路
１６ 供給ブロックの冷却路
１７ 断熱部材 DESCRIPTION OF SYMBOLS 1 Front plate 2 Rear plate 3 Guide shaft 4 Screw drive body 5,51 Ball nut member 6,61 Ball screw shaft 10 Central hole part 11 Supply port 12 Supply block 13 Injection heating cylinder 14 Ball bearing 15 Cooling path 16 of front plate 16 Supply Block cooling path 17 Heat insulation member

Claims (4)

前後一対の支持用のプレートに連結した複数本のガイドシャフトと、そのガイドシャフトに挿通してプレート間に進退自在に設けたスクリュ駆動体と、そのスクリュ駆動体と後プレートにわたり設けたボールねじ軸とボールナット部材とによる電動駆動手段と、前プレートの前面中央に取付けた供給ブロックと、その供給ブロックと前プレートに後端部を貫通して該供給ブロックに固設した射出加熱筒とからなる電動式射出装置において、
上記前プレートの内部に該前プレートの加熱を制御する冷媒の冷却路を設けてなることを特徴とする電動式射出装置。 A plurality of guide shafts connected to a pair of front and rear support plates, a screw drive body that is inserted through the guide shafts so as to be able to advance and retreat between the plates, and a ball screw shaft provided between the screw drive body and the rear plate And a ball nut member, an electric drive means attached to the front center of the front plate, and a supply block and an injection heating cylinder which penetrates the rear end of the front plate and is fixed to the supply block. In the electric injection device,
An electric injection device characterized in that a cooling path for a refrigerant for controlling heating of the front plate is provided inside the front plate. 前後一対の支持用のプレートに連結した複数本のガイドシャフトと、そのガイドシャフトと平行にして前後一対の支持用のプレートにボール軸受をもって回転自在に設けた２本のボールねじ軸と、ガイドシャフトに挿通するとともにボールナット部材をボールねじ軸に螺合して、プレート間に進退自在に設けたスクリュ駆動体と、後プレートに取付けたスクリュ駆動体の電動駆動機構と、前プレートの前面中央に取付けた供給ブロックと、その供給ブロックと前プレートに後端部を貫通して該供給ブロックに固設した射出加熱筒とからなる電動式射出装置において、
上記前プレートの内部に該前プレートと上記ボール軸受の加熱を制御する冷媒の冷却路を設けてなることを特徴とする電動式射出装置。 A plurality of guide shafts connected to a pair of front and rear support plates, two ball screw shafts provided in parallel with the guide shafts and rotatably provided with ball bearings on a pair of front and rear support plates, and a guide shaft The screw nut is screwed onto the ball screw shaft and screwed between the plates, and the screw drive mounted on the rear plate, the electric drive mechanism of the screw drive mounted on the rear plate, and the front center of the front plate In the electric injection device comprising the attached supply block and the injection heating cylinder fixed to the supply block through the rear end of the supply block and the front plate,
An electric injection device characterized in that a cooling path for a refrigerant for controlling heating of the front plate and the ball bearing is provided inside the front plate. 上記供給ブロックの内部に冷却路を設け、その冷却路の冷媒による温調手段を供給ブロックに設けてなることを特徴とする請求項１又は２記載の電動式射出装置。   3. The electric injection apparatus according to claim 1, wherein a cooling path is provided inside the supply block, and temperature control means using a refrigerant in the cooling path is provided in the supply block. 上記前プレートと供給ブロックとの間に断熱板を設けてなることを特徴とする請求項１又は２のいずれかに記載の電動式射出装置。   The electric injection device according to claim 1, wherein a heat insulating plate is provided between the front plate and the supply block.
JP2005276324A 2005-09-22 2005-09-22 Electric injection device Active JP4382730B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013049179A (en) * 2011-08-30 2013-03-14 Toshiba Mach Co Ltd Injection device, molding machine, and control method of injection device
ITMC20130029A1 (en) * 2013-05-31 2014-12-01 Acrilux Spa INJECTION MOLDING MACHINE WITH DOSING TANKS.
JP2015080866A (en) * 2013-10-21 2015-04-27 住友重機械工業株式会社 Injection molding machine
JP2016013565A (en) * 2014-07-02 2016-01-28 東芝機械株式会社 Molding device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013049179A (en) * 2011-08-30 2013-03-14 Toshiba Mach Co Ltd Injection device, molding machine, and control method of injection device
ITMC20130029A1 (en) * 2013-05-31 2014-12-01 Acrilux Spa INJECTION MOLDING MACHINE WITH DOSING TANKS.
WO2014191294A1 (en) * 2013-05-31 2014-12-04 Acrilux - S.P.A. Injection molding machine with shooting pots
JP2015080866A (en) * 2013-10-21 2015-04-27 住友重機械工業株式会社 Injection molding machine
JP2016013565A (en) * 2014-07-02 2016-01-28 東芝機械株式会社 Molding device

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