JP2016068448A - Vertical injection molding machine - Google Patents

Vertical injection molding machine Download PDF

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JP2016068448A
JP2016068448A JP2014201288A JP2014201288A JP2016068448A JP 2016068448 A JP2016068448 A JP 2016068448A JP 2014201288 A JP2014201288 A JP 2014201288A JP 2014201288 A JP2014201288 A JP 2014201288A JP 2016068448 A JP2016068448 A JP 2016068448A
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hole
drive device
injection molding
molding machine
frame
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JP6359406B2 (en
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義久 石井
Yoshihisa Ishii
義久 石井
大樹 松本
Daiki Matsumoto
大樹 松本
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Sumitomo Heavy Industries Ltd
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Sumitomo Heavy Industries Ltd
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Priority to CN201510566351.3A priority patent/CN105459360B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/64—Mould opening, closing or clamping devices

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a vertical injection molding machine allowing a drive device to be pulled out downward from a hole of a frame.SOLUTION: A vertical injection molding machine comprises a drive device having a rotary shaft parallel to the vertical direction, a frame having an insertion/extraction hole through which the drive device is inserted and extracted, and a pull-out prevention member preventing the drive device from being pulled out from the frame. The pull-out prevention member has a pull-out prevention hole smaller than the insertion/extraction hole when seen from the insertion/extraction direction. The periphery of the pull-out prevention hole is divided into a plurality of divided members.SELECTED DRAWING: Figure 3

Description

本発明は、竪型射出成形機に関する。   The present invention relates to a vertical injection molding machine.

型開閉方向が上下方向である竪型射出成形機は、回転軸が上下方向に平行な駆動装置を有する（例えば、特許文献１参照）。竪型射出成形機の組立時に、駆動装置はクレーンで吊り下げられ、フレームの穴に上方から挿入される。この状態で、駆動装置のフランジがフレームに対しボルトなどで固定される。   A vertical injection molding machine in which the mold opening / closing direction is the vertical direction has a drive device whose rotation axis is parallel to the vertical direction (see, for example, Patent Document 1). When the vertical injection molding machine is assembled, the drive unit is suspended by a crane and inserted into the hole of the frame from above. In this state, the flange of the drive device is fixed to the frame with a bolt or the like.

特開２００７−２７６３２４号公報JP 2007-276324 A

従来、駆動装置の整備（交換を含む）時に、駆動装置はフレームの穴から上方に引き抜かれており、下方に引き抜くことができなかった。   Conventionally, during maintenance (including replacement) of the drive device, the drive device has been pulled upward from the hole in the frame, and cannot be pulled downward.

本発明は、上記課題に鑑みてなされたものであって、駆動装置をフレームの穴から下方に引き抜くことができる、竪型射出成形機の提供を主な目的とする。   The present invention has been made in view of the above problems, and a main object of the present invention is to provide a vertical injection molding machine capable of pulling a driving device downward from a hole in a frame.

上記課題を解決するため、本発明の一態様によれば、
回転軸が上下方向に平行な駆動装置と、
前記駆動装置が挿抜される挿抜穴を有するフレームと、
前記フレームからの前記駆動装置の抜け止めを行う抜止部材とを備え、
前記抜止部材は、挿抜方向から見たときに前記挿抜穴よりも小さい抜止穴を有し、該抜止穴の周りに複数の分割部材に分割される、竪型射出成形機が提供される。 In order to solve the above problems, according to one aspect of the present invention,
A drive device whose rotation axis is parallel to the vertical direction;
A frame having an insertion / extraction hole into which the driving device is inserted / extracted;
A retaining member for retaining the drive device from the frame;
There is provided a vertical injection molding machine in which the retaining member has a retaining hole smaller than the insertion / removal hole when viewed from the insertion / removal direction and is divided into a plurality of divided members around the retaining hole.

本発明の一態様によれば、駆動装置をフレームの穴から下方に引き抜くことができる、竪型射出成形機が提供される。   According to one aspect of the present invention, there is provided a vertical injection molding machine capable of pulling a driving device downward from a hole in a frame.

本発明の一実施形態による竪型射出成形機の型開完了時の状態を示す図である。It is a figure which shows the state at the time of mold opening completion of the vertical type injection molding machine by one Embodiment of this invention. 本発明の一実施形態による竪型射出成形機に型締時の状態を示す図である。It is a figure which shows the state at the time of mold clamping to the vertical type injection molding machine by one Embodiment of this invention. 本発明の一実施形態による竪型射出成形機の駆動装置の取付構造を示す図である。It is a figure which shows the attachment structure of the drive device of the vertical injection molding machine by one Embodiment of this invention.

以下、本発明を実施するための形態について図面を参照して説明するが、各図面において、同一の又は対応する構成については同一の又は対応する符号を付して説明を省略する。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In each of the drawings, the same or corresponding components are denoted by the same or corresponding reference numerals, and description thereof will be omitted.

図１は、本発明の一実施形態による竪型射出成形機の型開完了時の状態を示す図である。図２は、本発明の一実施形態による竪型射出成形機の型締時の状態を示す図である。   FIG. 1 is a view showing a state at the completion of mold opening of a vertical injection molding machine according to an embodiment of the present invention. FIG. 2 is a view showing a state at the time of mold clamping of the vertical injection molding machine according to the embodiment of the present invention.

竪型射出成形機は、金型装置３０の型閉、型締、および型開を行う型締装置１０を有する。金型装置３０は、例えば上金型３２と、下金型３３とで構成される。竪型射出成形機は、型開閉方向が上下方向である。   The vertical injection molding machine includes a mold clamping device 10 that performs mold closing, mold clamping, and mold opening of the mold apparatus 30. For example, the mold apparatus 30 includes an upper mold 32 and a lower mold 33. In the vertical injection molding machine, the mold opening / closing direction is the vertical direction.

型締装置１０は、フレーム１１、上プラテン１２、下プラテン１３、回転テーブル１４、トグルサポート１６、タイバー１７、トグル機構２０、および型締モータ２１などを有する。   The mold clamping apparatus 10 includes a frame 11, an upper platen 12, a lower platen 13, a rotary table 14, a toggle support 16, a tie bar 17, a toggle mechanism 20, a mold clamping motor 21, and the like.

上プラテン１２は、下プラテン１３の上方において昇降自在とされる。上プラテン１２における下プラテン１３との対向面（下面）には、上金型３２が取り付けられる。   The upper platen 12 is movable up and down above the lower platen 13. An upper mold 32 is attached to a surface (lower surface) of the upper platen 12 facing the lower platen 13.

下プラテン１３は、上プラテン１２の下方に配設され、フレーム１１に対して固定される。下プラテン１３における上プラテン１２との対向面（上面）には、回転テーブル１４を介して複数の下金型３３が取り付けられる。   The lower platen 13 is disposed below the upper platen 12 and is fixed to the frame 11. A plurality of lower molds 33 are attached to the surface (upper surface) of the lower platen 13 facing the upper platen 12 via the rotary table 14.

回転テーブル１４が１８０°回転することで、下金型３３が上金型３２と向かい合う位置と、成形品を取り出す位置との間を移動する。成形品を取り出す位置は、下金型３３にインサート部材をセットする段取り位置を兼ねてよい。   By rotating the rotary table 14 by 180 °, the lower mold 33 moves between a position where the lower mold 33 faces the upper mold 32 and a position where the molded product is taken out. The position for taking out the molded product may also serve as a setup position for setting the insert member in the lower mold 33.

尚、本実施形態の下金型３３は、回転テーブル１４を介して下プラテン１３に取り付けられるが、下プラテン１３に直接に取り付けられてもよい。また、下金型３３の個数は、２つには限定されず、１つでもよいし、３つ以上でもよい。   The lower mold 33 of this embodiment is attached to the lower platen 13 via the rotary table 14, but may be directly attached to the lower platen 13. Further, the number of lower molds 33 is not limited to two, and may be one or three or more.

トグルサポート１６は、下プラテン１３の下方において昇降自在とされる。トグルサポート１６と上プラテン１２とはタイバー１７により連結される。下プラテン１３とトグルサポート１６との間に、トグル機構２０が配設される。   The toggle support 16 is movable up and down below the lower platen 13. The toggle support 16 and the upper platen 12 are connected by a tie bar 17. A toggle mechanism 20 is disposed between the lower platen 13 and the toggle support 16.

トグル機構２０は、クロスヘッド２０ａ、複数のリンク２０ｂ、２０ｃなどで構成される。一方のリンク２０ｂは下プラテン１３に対して揺動自在に取り付けられ、他方のリンク２０ｃはトグルサポート１６に対して揺動自在に取り付けられる。これらのリンク２０ｂ、２０ｃは、ピンなどで屈伸自在に連結される。クロスヘッド２０ａを昇降させることにより、複数のリンク２０ｂ、２０ｃが屈伸され、下プラテン１３に対してトグルサポート１６が昇降される。   The toggle mechanism 20 includes a cross head 20a and a plurality of links 20b and 20c. One link 20 b is swingably attached to the lower platen 13, and the other link 20 c is swingably attached to the toggle support 16. These links 20b and 20c are connected so as to be able to bend and stretch with pins or the like. By raising and lowering the cross head 20 a, the links 20 b and 20 c are bent and extended, and the toggle support 16 is raised and lowered with respect to the lower platen 13.

型締モータ２１は、トグル機構２０を作動させ、トグルサポート１６を昇降させることにより、上プラテン１２を昇降させる。型締モータ２１は、例えばトグルサポート１６に対し固定される。型締モータ２１とトグル機構２０との間には、型締モータ２１の回転運動をクロスヘッド２０ａの直線運動に変換する運動変換機構２５が配設される。運動変換機構２５は、ボールねじ機構などで構成される。   The mold clamping motor 21 raises and lowers the upper platen 12 by operating the toggle mechanism 20 and raising and lowering the toggle support 16. The mold clamping motor 21 is fixed to the toggle support 16, for example. Between the mold clamping motor 21 and the toggle mechanism 20, a motion conversion mechanism 25 that converts the rotational motion of the mold clamping motor 21 into the linear motion of the cross head 20a is disposed. The motion conversion mechanism 25 is configured by a ball screw mechanism or the like.

型締装置１０は、型閉工程において、型締モータ２１を駆動して上プラテン１２を下降させる。上金型３２と下金型３３とが接触することにより、型閉工程が完了する。その後、型締工程では、型締モータ２１をさらに駆動して型締モータ２１による推進力にトグル倍率を乗じた型締力を生じさせる。型締時に上金型３２と下金型３３との間にキャビティ空間が形成される。射出装置がキャビティ空間に液状の成形材料を充填させる。キャビティ空間内の成形材料が固化した後、型開工程が行われる。型開工程では、型締装置１０が型締モータ２１を駆動して上プラテン１２を上昇させる。型開完了後、下金型３３から成形品が取り出される。   In the mold closing process, the mold clamping apparatus 10 drives the mold clamping motor 21 to lower the upper platen 12. When the upper mold 32 and the lower mold 33 are in contact with each other, the mold closing process is completed. Thereafter, in the mold clamping process, the mold clamping motor 21 is further driven to generate a mold clamping force obtained by multiplying the propulsive force of the mold clamping motor 21 by the toggle magnification. A cavity space is formed between the upper mold 32 and the lower mold 33 during mold clamping. An injection device fills the cavity space with a liquid molding material. After the molding material in the cavity space is solidified, a mold opening process is performed. In the mold opening process, the mold clamping device 10 drives the mold clamping motor 21 to raise the upper platen 12. After completion of the mold opening, the molded product is taken out from the lower mold 33.

図３は、本発明の一実施形態による竪型射出成形機の駆動装置の取付構造を示す図である。駆動装置４０は、抜止プレート６０を介してフレーム１１に対して固定される。   FIG. 3 is a view showing a mounting structure of a drive unit of a vertical injection molding machine according to an embodiment of the present invention. The driving device 40 is fixed to the frame 11 via the retaining plate 60.

フレーム１１は、駆動装置４０が挿抜される挿抜穴１１ａを有する。挿抜方向（つまり上下方向）から見たとき、挿抜穴１１ａは駆動装置４０よりも大きい。竪型射出成形機の組立時に、駆動装置４０はクレーンで吊り下げられ、挿抜穴１１ａに上方から挿入される。   The frame 11 has an insertion / extraction hole 11a through which the drive device 40 is inserted / extracted. When viewed from the insertion / extraction direction (that is, the vertical direction), the insertion / extraction hole 11 a is larger than the drive device 40. When assembling the vertical injection molding machine, the driving device 40 is suspended by a crane and inserted into the insertion / extraction hole 11a from above.

抜止プレート６０は、駆動装置４０が貫通する抜止穴６０ａを有する。挿抜方向から見たとき、抜止穴６０ａは、挿抜穴１１ａよりも小さく、挿抜穴１１ａからの駆動装置４０の下方向への抜け止めを行う。   The retaining plate 60 has a retaining hole 60a through which the driving device 40 passes. When viewed from the insertion / removal direction, the retaining hole 60a is smaller than the insertion / removal hole 11a, and prevents the drive device 40 from coming out downward from the insertion / removal hole 11a.

抜止プレート６０は、抜止穴６０ａの周りに複数の分割プレート６１、６２に分割されている。複数の分割プレート６１、６２を左右に分離させることにより、駆動装置４０をフレーム１１の挿抜穴１１ａから下方向に引き抜くことができる。   The retaining plate 60 is divided into a plurality of divided plates 61 and 62 around a retaining hole 60a. By separating the plurality of divided plates 61 and 62 to the left and right, the driving device 40 can be pulled out from the insertion / extraction hole 11 a of the frame 11.

抜止プレート６０は、フレーム１１に移動自在に載置され、フレーム１１に対しボルトなどの締結具で固定される。締結具による固定を解除したときに、重力による抜止プレート６０の落下が防止できるため、抜止プレート６０の水平方向の位置調整が容易である。   The retaining plate 60 is movably mounted on the frame 11 and is fixed to the frame 11 with a fastener such as a bolt. When the fixing by the fastener is released, the retaining plate 60 can be prevented from dropping due to gravity, so that the horizontal position adjustment of the retaining plate 60 is easy.

駆動装置４０は、例えば回転テーブル１４を回転させるものである。回転テーブル１４は、フレーム１１の上方に水平に配設され、駆動装置４０の整備に用いる整備穴１４ａを有する。挿抜方向から見たとき、整備穴１４ａは、抜止穴６０ａよりも小さい。駆動装置４０の整備穴１４ａからの上への引き抜きが制限されるため、挿抜穴１１ａからの下への引き抜きを可能とした分割プレート６１、６２が役立つ。また、整備穴１４ａが小さいため、下金型３３の取り付けスペースが広く、回転テーブル１４の剛性が高い。   The drive device 40 rotates the rotary table 14, for example. The turntable 14 is disposed horizontally above the frame 11 and has a maintenance hole 14 a used for maintenance of the drive device 40. When viewed from the insertion / removal direction, the maintenance hole 14a is smaller than the retaining hole 60a. Since the upper pull-out of the drive device 40 from the maintenance hole 14a is restricted, the divided plates 61 and 62 that enable the pull-down from the insertion / removal hole 11a are useful. Moreover, since the maintenance hole 14a is small, the mounting space for the lower mold 33 is wide, and the rigidity of the turntable 14 is high.

駆動装置４０は、駆動装置本体４１、フランジ４２、回転軸４３、回転部材４５などを含む。   The driving device 40 includes a driving device main body 41, a flange 42, a rotating shaft 43, a rotating member 45, and the like.

駆動装置本体４１は、例えばモータおよび減速機で構成される。駆動装置本体４１は、抜止プレート６０の抜止穴６０ａを貫通し、フレーム１１の挿抜穴１１ａに上方から挿入される。尚、駆動装置本体４１は、モータのみで構成されてもよい。   The drive device main body 41 is composed of, for example, a motor and a speed reducer. The drive device main body 41 passes through the retaining hole 60a of the retaining plate 60 and is inserted into the insertion / removal hole 11a of the frame 11 from above. The drive device main body 41 may be composed of only a motor.

フランジ４２は、駆動装置本体４１の外周から突出する。フランジ４２は、例えば駆動装置本体４１の上端部に形成される。挿抜方向から見たとき、フランジ４２は、抜止穴６０ａよりも大きく、抜止プレート６０に載置される。これにより、フレーム１１に対する駆動装置４０の上下方向の位置が決まる。また、フランジ４２を抜止プレート６０に対しボルト締結することができる。   The flange 42 protrudes from the outer periphery of the drive device main body 41. The flange 42 is formed at the upper end portion of the drive device main body 41, for example. When viewed from the insertion / removal direction, the flange 42 is larger than the retaining hole 60 a and is placed on the retaining plate 60. Thereby, the vertical position of the drive device 40 with respect to the frame 11 is determined. Further, the flange 42 can be bolted to the retaining plate 60.

回転軸４３は、駆動装置本体４１により回転駆動される。回転軸４３は、上下方向に平行とされる。   The rotating shaft 43 is rotationally driven by the drive device main body 41. The rotating shaft 43 is parallel to the vertical direction.

回転部材４５は、回転軸４３と共に回転する。回転部材４５は、例えばプーリで構成され、メカロックなどにより回転軸４３と締結される。回転部材４５と回転軸４３との締結および分離は、例えば整備穴１４ａを用いて行う。   The rotating member 45 rotates together with the rotating shaft 43. The rotating member 45 is constituted by a pulley, for example, and is fastened to the rotating shaft 43 by a mechanical lock or the like. Fastening and separation of the rotating member 45 and the rotating shaft 43 are performed using, for example, the maintenance hole 14a.

回転部材４５の回転運動は、ベルト４６を介して回転テーブル１４に伝達される。この場合、フレーム１１に対する抜止プレート６０の水平方向の位置調整により、ベルト４６のテンションが調整できる。   The rotational movement of the rotary member 45 is transmitted to the rotary table 14 via the belt 46. In this case, the tension of the belt 46 can be adjusted by adjusting the horizontal position of the retaining plate 60 with respect to the frame 11.

尚、ベルト４６の代わりに、チェーンまたはギヤが用いられてもよい。ギヤの場合、回転部材４５もギヤで構成される。   In place of the belt 46, a chain or a gear may be used. In the case of a gear, the rotating member 45 is also composed of a gear.

以上、竪型射出成形機の実施形態等について説明したが、本発明は上記実施形態等に限定されるものではなく、特許請求の範囲に記載された本発明の要旨の範囲内において、種々の変形、改良が可能である。   As mentioned above, although the embodiment etc. of a vertical injection molding machine were explained, the present invention is not limited to the above-mentioned embodiment etc., and it is various within the range of the gist of the present invention indicated in the claim. Modifications and improvements are possible.

例えば、上記実施形態の駆動装置４０は、フランジ４２を有するが、フランジ４２を有しなくてもよい。この場合、複数の分割プレート６１、６２は、駆動装置４０を挟み込み、摩擦により抜け止めを行う。また、駆動装置４０は、フランジ４２の代わりに、溝を外周に有してもよい。この場合、各分割プレート６１、６２は、駆動装置４０の溝に挿入されることで抜け止めを行う。いずれの場合も、複数の分割プレート６１、６２を分離することにより、駆動装置４０をフレーム１１の挿抜穴１１ａから下方向に引き抜くことができる。   For example, the drive device 40 of the above embodiment has the flange 42, but may not have the flange 42. In this case, the plurality of divided plates 61 and 62 sandwich the drive device 40 and prevent it from coming off by friction. Further, the drive device 40 may have a groove on the outer periphery instead of the flange 42. In this case, each of the divided plates 61 and 62 is prevented from being detached by being inserted into the groove of the driving device 40. In any case, the drive device 40 can be pulled out from the insertion / extraction hole 11a of the frame 11 by separating the plurality of divided plates 61 and 62.

１０ 型締装置
１１ フレーム
１１ａ 挿抜孔
１２ 上プラテン
１３ 下プラテン
１４ 回転テーブル
１４ａ 整備穴
１６ トグルサポート
１７ タイバー
２０ トグル機構
２１ 型締モータ
４０ 駆動装置
４１ 駆動装置本体
４２ フランジ
４３ 回転軸
４５ 回転部材
６０ 抜止プレート
６０ａ 抜止孔
６１ 分割プレート
６２ 分割プレート 10 Clamping device 11 Frame 11a Insertion / extraction hole 12 Upper platen 13 Lower platen 14 Rotating table 14a Maintenance hole 16 Toggle support 17 Tie bar 20 Toggle mechanism 21 Clamping motor 40 Driving device 41 Driving device main body 42 Flange 43 Rotating shaft 45 Rotating member 60 Detaching Plate 60a Retaining hole 61 Dividing plate 62 Dividing plate

Claims (5)

回転軸が上下方向に平行な駆動装置と、
前記駆動装置が挿抜される挿抜穴を有するフレームと、
前記フレームからの前記駆動装置の抜け止めを行う抜止部材とを備え、
前記抜止部材は、挿抜方向から見たときに前記挿抜穴よりも小さい抜止穴を有し、該抜止穴の周りに複数の分割部材に分割される、竪型射出成形機。 A drive device whose rotation axis is parallel to the vertical direction;
A frame having an insertion / extraction hole into which the driving device is inserted / extracted;
A retaining member for retaining the drive device from the frame;
The vertical injection molding machine, wherein the retaining member has a retaining hole smaller than the insertion / removal hole when viewed from the insertion / removal direction, and is divided into a plurality of divided members around the retaining hole. 前記フレームの上方に水平に配設される回転テーブルを備え、
前記駆動装置は、前記回転テーブルを回転させる、請求項１に記載の竪型射出成形機。 A rotary table disposed horizontally above the frame;
The vertical injection molding machine according to claim 1, wherein the driving device rotates the rotary table. 前記回転テーブルは、前記駆動装置の整備に用いる整備穴を有し、
前記整備穴は、前記挿抜方向から見たときに前記抜止穴よりも小さい、請求項２に記載の竪型射出成形機。 The rotary table has a maintenance hole used for maintenance of the drive device,
The vertical injection molding machine according to claim 2, wherein the maintenance hole is smaller than the retaining hole when viewed from the insertion / extraction direction. 前記駆動装置は、前記抜止穴を貫通する駆動装置本体と、該駆動装置本体の外周から突出するフランジとを有し、
前記フランジは、前記挿抜方向から見たときに前記抜止穴よりも大きく、前記抜止部材に載置される、請求項１〜３のいずれか１項に記載の竪型射出成形機。 The drive device has a drive device main body penetrating the retaining hole, and a flange protruding from the outer periphery of the drive device main body,
The vertical injection molding machine according to any one of claims 1 to 3, wherein the flange is larger than the retaining hole when viewed from the insertion / extraction direction and is placed on the retaining member. 前記抜止部材は、前記フレームに移動自在に載置され、締結具により前記フレームに対し固定される、請求項１〜４のいずれか１項に記載の竪型射出成形機。   The vertical injection molding machine according to any one of claims 1 to 4, wherein the retaining member is movably mounted on the frame and fixed to the frame with a fastener.
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