JP5912870B2 - Injection molding machine - Google Patents

Injection molding machine Download PDF

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JP5912870B2
JP5912870B2 JP2012122352A JP2012122352A JP5912870B2 JP 5912870 B2 JP5912870 B2 JP 5912870B2 JP 2012122352 A JP2012122352 A JP 2012122352A JP 2012122352 A JP2012122352 A JP 2012122352A JP 5912870 B2 JP5912870 B2 JP 5912870B2
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fitting
laminated steel
groove
mold
movable
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JP2013049260A (en
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幸貴 山下
幸貴 山下
森田 洋
洋 森田
幸次 守谷
幸次 守谷
▲徳▼井 洋介
洋介 ▲徳▼井
惇朗 田村
惇朗 田村
知寛 森谷
知寛 森谷
孝明 森江
孝明 森江
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Sumitomo Heavy Industries Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1761Means for guiding movable mould supports or injection units on the machine base or frame; Machine bases or frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • B29C2045/645Mould opening, closing or clamping devices using magnetic means

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

Description

本発明は、型締め動作を駆動する電磁石を備える射出成形機に関する。   The present invention relates to an injection molding machine including an electromagnet that drives a mold clamping operation.

従来、射出成形機においては、樹脂を射出装置の射出ノズルから射出して固定金型と可動金型との間のキャビティ空間に充填(てん)し、固化させることによって成形品を得るようになっている。そして、固定金型に対して可動金型を移動させて型閉じ、型締め及び型開きを行うために型締装置が配設される。   2. Description of the Related Art Conventionally, in an injection molding machine, resin is injected from an injection nozzle of an injection device, filled into a cavity space between a fixed mold and a movable mold, and solidified to obtain a molded product. ing. A mold clamping device is provided to move the movable mold relative to the fixed mold to perform mold closing, mold clamping, and mold opening.

該型締装置には、油圧シリンダに油を供給することによって駆動される油圧式の型締装置、及び電動機によって駆動される電動式の型締装置があるが、該電動式の型締装置は、制御性が高く、周辺を汚すことがなく、かつ、エネルギー効率が高いので、多く利用されている。この場合、電動機を駆動することによってボールねじを回転させて推力を発生させ、該推力をトグル機構によって拡大し、大きな型締力を発生させるようにしている。   The mold clamping device includes a hydraulic mold clamping device that is driven by supplying oil to a hydraulic cylinder, and an electric mold clamping device that is driven by an electric motor. It is widely used because it has high controllability, does not pollute the surroundings, and has high energy efficiency. In this case, by driving the electric motor, the ball screw is rotated to generate a thrust, and the thrust is expanded by a toggle mechanism to generate a large mold clamping force.

ところが、構成の電動式の型締装置においては、トグル機構を使用するようになっているので、該トグル機構の特性上、型締力を変更することが困難であり、応答性及び安定性が悪く、成形中に型締力を制御することができない。そこで、ボールねじによって発生させられた推力を直接型締力として使用することができるようにした型締装置が提供されている。この場合、電動機のトルクと型締力とが比例するので、成形中に型締力を制御することができる。   However, since the electric type mold clamping device having the configuration uses a toggle mechanism, it is difficult to change the mold clamping force due to the characteristics of the toggle mechanism, and the responsiveness and stability are improved. Unfortunately, the clamping force cannot be controlled during molding. Therefore, a mold clamping device is provided in which the thrust generated by the ball screw can be directly used as a mold clamping force. In this case, since the torque of the electric motor and the mold clamping force are proportional, the mold clamping force can be controlled during molding.

しかしながら、従来の型締装置においては、ボールねじの耐荷重性が低く、大きな型締力を発生させることができないだけでなく、電動機に発生するトルクリップルによって型締力が変動してしまう。また、型締力を発生させるために、電動機に電流を常時供給する必要があり、電動機の消費電力量及び発熱量が多くなるので、電動機の定格出力をその分大きくする必要があり、型締装置のコストが高くなってしまう。   However, in the conventional mold clamping device, the load resistance of the ball screw is low, and not only a large mold clamping force cannot be generated, but also the mold clamping force fluctuates due to torque ripple generated in the electric motor. In addition, in order to generate the mold clamping force, it is necessary to constantly supply current to the motor, and the power consumption and heat generation amount of the motor increase. Therefore, it is necessary to increase the rated output of the motor by that amount. The cost of the device becomes high.

そこで、型開閉動作にはリニアモータを使用し、型締動作には電磁石の吸着力を利用した型締装置が考えられる(例えば、特許文献1)。   Therefore, a mold clamping device using a linear motor for the mold opening / closing operation and utilizing the attractive force of an electromagnet for the mold clamping operation is conceivable (for example, Patent Document 1).

国際公開第05/090052号パンフレットWO05 / 090052 pamphlet

ところで、特許文献1に記載されるような電磁石の吸着力を利用した型締装置を使用する構成の場合、渦電流の発生による応答遅れや鉄損、それによる発熱等が問題となるが、この渦電流は、電磁石が形成される部材(典型的には、リヤプラテン)を積層鋼板で構成することで、無くすことができる。しかしながら、積層鋼板で例えばリヤプラテンを構成する場合、これらの各鋼板を正しい位置関係で結合(一体化)することが有用となる。   By the way, in the case of the configuration using the mold clamping device using the attractive force of the electromagnet as described in Patent Document 1, response delay and iron loss due to the generation of eddy current, heat generation due to this, and the like become problems. The eddy current can be eliminated by forming a member (typically, the rear platen) on which the electromagnet is formed with a laminated steel plate. However, when a rear platen is constituted by laminated steel plates, for example, it is useful to bond (integrate) these steel plates in the correct positional relationship.

そこで、本発明は、電磁石に関連する部材を積層鋼板により構成しつつ、各鋼板を正しい位置関係で結合することができる射出成形機の提供を目的とする。   Then, this invention aims at provision of the injection molding machine which can couple | bond each steel plate by the correct positional relationship, comprising the member relevant to an electromagnet with a laminated steel plate.

上記目的を達成するため、本発明の一局面によれば、
固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層すると共に所定方向に延在する溝が形成された積層鋼板と、前記積層鋼板の溝内に嵌め込まれる嵌め込み部材とを有し、
前記溝は、前記溝内に嵌め込まれる嵌め込み部材によって前記積層鋼板の回転運動を規制する断面形状を有し、
前記嵌め込み部材は、タイバーに固定され、
前記積層鋼板は、前記嵌め込み部材を介して前記タイバーに連結される。
In order to achieve the above object, according to one aspect of the present invention,
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism is a laminated steel plate in which a plurality of steel plates are laminated and a groove extending in a predetermined direction is formed; Having a fitting member fitted into the groove of the laminated steel sheet,
The groove have a cross-sectional shape for restricting the rotational movement of the laminated steel plate by fitting member to be fitted in the groove,
The fitting member is fixed to the tie bar;
The laminated steel plate is connected to the tie bar via the fitting member.

本発明によれば、電磁石に関連する部材を積層鋼板により構成しつつ、各鋼板を正しい位置関係で結合することができる射出成形機が得られる。   ADVANTAGE OF THE INVENTION According to this invention, the injection molding machine which can couple | bond each steel plate by the correct positional relationship, comprising the member relevant to an electromagnet with a laminated steel plate is obtained.

本発明の実施の形態の射出成形機における型締装置の型閉じ時の状態を示す図である。It is a figure which shows the state at the time of the mold closing of the mold clamping apparatus in the injection molding machine of embodiment of this invention. 本発明の実施の形態の射出成形機における型締装置の型開き時の状態を示す図である。It is a figure which shows the state at the time of the mold opening of the mold clamping apparatus in the injection molding machine of embodiment of this invention. 本発明の一実施例(実施例1)によるリヤプラテン13を示す斜視図である。It is a perspective view which shows the rear platen 13 by one Example (Example 1) of this invention. 図4(A)は、図3のラインA−Aに沿った断面図であり、図4(B)は、図3のラインB−Bに沿った断面図であり、図4(C)は、図3のラインC−Cに沿った断面図である。4A is a cross-sectional view taken along line AA in FIG. 3, FIG. 4B is a cross-sectional view taken along line BB in FIG. 3, and FIG. FIG. 4 is a sectional view taken along line CC in FIG. 3. 鍵溝47aの他の形状の例を示す図である。It is a figure which shows the example of the other shape of the keyway 47a. 図3に示すリヤプラテン13の鍵溝47aに嵌め込まれる嵌め込み部材90の一例を示す斜視図である。FIG. 4 is a perspective view showing an example of a fitting member 90 that is fitted into the keyway 47a of the rear platen 13 shown in FIG. 3. 射出成形機におけるリヤプラテン13の鍵溝47aと嵌め込み部材90に関連した要部のみを取り出した断面図である。FIG. 4 is a cross-sectional view showing only the main parts related to the keyway 47a and the fitting member 90 of the rear platen 13 in the injection molding machine. リヤプラテン13の端面に取り付けられてもよい抜け防止板材92の一例を示す図である。It is a figure which shows an example of the drop prevention board | plate material 92 which may be attached to the end surface of the rear platen 13. 本発明の他の一実施例(実施例2)によるリヤプラテン130を示す斜視図である。It is a perspective view which shows the rear platen 130 by other one Example (Example 2) of this invention. 図10(A)は、図9のラインA−Aに沿った断面図であり、図10(B)は、図9のラインB−Bに沿った断面図であり、図10(C)は、図9のラインC−Cに沿った断面図である。10A is a cross-sectional view along line AA in FIG. 9, FIG. 10B is a cross-sectional view along line BB in FIG. 9, and FIG. FIG. 10 is a cross-sectional view taken along line CC in FIG. 9. 嵌め込み部材90とタイバー14との結合態様のその他の例を示す図であり、射出成形機におけるリヤプラテン130の鍵溝47aと嵌め込み部材90に関連した要部のみを取り出した断面図である。It is a figure which shows the other example of the coupling | bonding aspect of the fitting member 90 and the tie bar 14, and is sectional drawing which took out only the principal part relevant to the keyway 47a and the fitting member 90 of the rear platen 130 in an injection molding machine. 嵌め込み部材90の他の適用例を示す図であり、射出成形機における吸着板22の鍵溝22aと嵌め込み部材90に関連した要部のみを取り出した断面図である。It is a figure which shows the other application example of the fitting member 90, and is sectional drawing which took out only the principal part relevant to the keyway 22a and the fitting member 90 of the adsorption | suction board 22 in an injection molding machine. 本発明の別の一実施例(実施例3)によるリヤプラテン131の要部を示す断面図である。It is sectional drawing which shows the principal part of the rear platen 131 by another one Example (Example 3) of this invention. 図13の変形例を示す断面図である。It is sectional drawing which shows the modification of FIG. 本発明のさらに別の一実施例(実施例4)によるリヤプラテン132の要部を示す断面図である。It is sectional drawing which shows the principal part of the rear platen 132 by another one Example (Example 4) of this invention. 本発明のさらに別の一実施例(実施例5)によるリヤプラテン133の要部を示す断面図である。It is sectional drawing which shows the principal part of the rear platen 133 by another one Example (Example 5) of this invention. 本発明のさらに別の一実施例(実施例6)によるリヤプラテン134の要部を示す断面図である。It is sectional drawing which shows the principal part of the rear platen 134 by another one Example (Example 6) of this invention. 本発明のさらに別の一実施例(実施例7)によるリヤプラテン135の要部を示す断面図である。It is sectional drawing which shows the principal part of the rear platen 135 by another one Example (Example 7) of this invention.

以下、図面を参照して、本発明を実施するための最良の形態の説明を行う。尚、本実施の形態において、型締装置については、型閉じを行う際の可動プラテンの移動方向を前方とし、型開きを行う際の可動プラテンの移動方向を後方とし、射出装置については、射出を行う際のスクリューの移動方向を前方とし、計量を行う際のスクリューの移動方向を後方として説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings. In the present embodiment, for the mold clamping device, the moving direction of the movable platen when closing the mold is the front, the moving direction of the movable platen when opening the mold is the rear, and the injection device is the injection The description will be made assuming that the moving direction of the screw when performing the measurement is the front and the moving direction of the screw when performing the measurement is the rear.

図1は本発明の実施の形態の射出成形機における型締装置の型閉じ時の状態を示す図、図2は本発明の実施の形態の射出成形機における型締装置の型開き時の状態を示す図である。尚、図1及び図2において、ハッチングを付された部材は主要断面を示す。   FIG. 1 is a diagram showing a state when a mold clamping device is closed in an injection molding machine according to an embodiment of the present invention, and FIG. 2 is a state when the mold clamping device is opened in the injection molding machine according to the embodiment of the present invention. FIG. In FIGS. 1 and 2, the hatched members show the main cross section.

図において、10は型締装置、Frは射出成形機のフレーム(架台)、Gdは、該フレームFrに対して可動なガイド、11は、図示されないガイド上又はフレームFr上に載置された固定プラテンであり、該固定プラテン11と所定の間隔を置いて、かつ、固定プラテン11と対向させてリヤプラテン13が配設され、固定プラテン11とリヤプラテン13との間に4本のタイバー14(図においては、4本のタイバー14のうちの2本だけを示す。)が架設される。タイバー14におけるリヤプラテン13側の端部は、後述の嵌め込み部材90に結合される。尚、リヤプラテン13は、フレームFrに対して固定される。   In the figure, 10 is a mold clamping device, Fr is a frame (frame) of an injection molding machine, Gd is a guide movable with respect to the frame Fr, 11 is a guide not shown or fixed on the frame Fr. A rear platen 13 is disposed at a predetermined distance from the fixed platen 11 and opposed to the fixed platen 11, and four tie bars 14 (in the figure) are disposed between the fixed platen 11 and the rear platen 13. Shows only two of the four tie bars 14). An end of the tie bar 14 on the rear platen 13 side is coupled to a fitting member 90 described later. The rear platen 13 is fixed with respect to the frame Fr.

そして、タイバー14に沿って固定プラテン11と対向させて可動プラテン12が型開閉方向に進退自在に配設される。そのために、可動プラテン12がガイドGdに固定され、可動プラテン12におけるタイバー14と対応する箇所にタイバー14を貫通させるための図示されないガイド穴が形成される。尚、ガイドGdには、後述の吸着板22も固定される。   A movable platen 12 is disposed along the tie bar 14 so as to face the fixed platen 11 so as to be movable back and forth in the mold opening / closing direction. For this purpose, the movable platen 12 is fixed to the guide Gd, and a guide hole (not shown) for penetrating the tie bar 14 is formed at a position corresponding to the tie bar 14 in the movable platen 12. A suction plate 22 described later is also fixed to the guide Gd.

また、固定プラテン11には固定金型15が、可動プラテン12には可動金型16がそれぞれ固定され、可動プラテン12の進退に伴って固定金型15と可動金型16とが接離させられ、型閉じ、型締め及び型開きが行われる。尚、型締めが行われるのに伴って、固定金型15と可動金型16との間に図示されないキャビティ空間が形成され、射出装置17の射出ノズル18から射出された図示されない樹脂がキャビティ空間に充墳される。また、固定金型15及び可動金型16によって金型装置19が構成される。   A fixed mold 15 is fixed to the fixed platen 11 and a movable mold 16 is fixed to the movable platen 12. The fixed mold 15 and the movable mold 16 are brought into contact with and separated from each other as the movable platen 12 advances and retreats. Then, mold closing, mold clamping and mold opening are performed. As the mold clamping is performed, a cavity space (not shown) is formed between the fixed mold 15 and the movable mold 16, and resin (not shown) injected from the injection nozzle 18 of the injection device 17 is formed in the cavity space. Charged to A mold device 19 is configured by the fixed mold 15 and the movable mold 16.

吸着板22は、可動プラテン12と平行にガイドGdに固定される。これにより、吸着板22は、リヤプラテン13より後方において進退自在となる。吸着板22は、磁性材料で形成されてよい。例えば、吸着板22は、強磁性体から成る薄板を積層することによって形成される電磁積層鋼板により構成されてもよい。   The suction plate 22 is fixed to the guide Gd in parallel with the movable platen 12. As a result, the suction plate 22 can move forward and backward behind the rear platen 13. The suction plate 22 may be formed of a magnetic material. For example, the suction plate 22 may be configured by an electromagnetic laminated steel plate formed by laminating thin plates made of a ferromagnetic material.

リニアモータ28は、可動プラテン12を進退させるため、ガイドGdに設けられる。リニアモータ28は、固定子29、及び可動子31を備え、固定子29は、フレームFr上において、ガイドGdと平行に、かつ、可動プラテン12の移動範囲に対応させて形成され、可動子31は、可動プラテン12の下端において、固定子29と対向させて、かつ、所定の範囲にわたって形成される。   The linear motor 28 is provided on the guide Gd in order to advance and retract the movable platen 12. The linear motor 28 includes a stator 29 and a mover 31, and the stator 29 is formed on the frame Fr in parallel with the guide Gd and corresponding to the moving range of the movable platen 12. Is formed at a lower end of the movable platen 12 so as to face the stator 29 and over a predetermined range.

可動子31は、コア34及びコイル35を備える。そして、コア34は、固定子29に向けて突出させて、所定のピッチで形成された複数の磁極歯33を備え、コイル35は、各磁極歯33に巻装される。尚、磁極歯33は可動プラテン12の移動方向に対して直角の方向に、互いに平行に形成される。また、固定子29は、図示されないコア、及び該コア上に延在させて形成された図示されない永久磁石を備える。該永久磁石は、N極及びS極の各磁極を交互に、かつ、磁極歯33と同じピッチで着磁させることによって形成される。コイル35に所定の電流を供給することによってリニアモータ28を駆動すると、可動子31が進退させられ、それに伴って、ガイドGdにより可動プラテン12が進退させられ、型閉じ及び型開きを行うことができる。   The mover 31 includes a core 34 and a coil 35. The core 34 includes a plurality of magnetic pole teeth 33 that are protruded toward the stator 29 and formed at a predetermined pitch, and the coil 35 is wound around each magnetic pole tooth 33. The magnetic pole teeth 33 are formed in parallel to each other in a direction perpendicular to the moving direction of the movable platen 12. The stator 29 includes a core (not shown) and a permanent magnet (not shown) formed to extend on the core. The permanent magnet is formed by magnetizing the N and S poles alternately and at the same pitch as the pole teeth 33. When the linear motor 28 is driven by supplying a predetermined current to the coil 35, the movable element 31 is advanced and retracted, and accordingly, the movable platen 12 is advanced and retracted by the guide Gd to perform mold closing and mold opening. it can.

尚、本実施の形態においては、固定子29に永久磁石を、可動子31にコイル35を配設するようになっているが、固定子にコイルを、可動子に永久磁石を配設することもできる。その場合、リニアモータ28が駆動されるのに伴って、コイルが移動しないので、コイルに電力を供給するための配線を容易に行うことができる。   In the present embodiment, the permanent magnet is disposed on the stator 29 and the coil 35 is disposed on the mover 31, but the coil is disposed on the stator and the permanent magnet is disposed on the mover. You can also. In this case, since the coil does not move as the linear motor 28 is driven, wiring for supplying power to the coil can be easily performed.

尚、ガイドGdに可動プラテン12と吸着板22を固定する構成に限られず、可動プラテン12又は吸着板22にリニアモータ28の可動子31を設ける構成としてもよい。また、型開閉機構としては、リニアモータ28に限定されず、油圧式や電動式等であってもよい。   The movable platen 12 and the suction plate 22 are not limited to be fixed to the guide Gd, and a movable element 31 of the linear motor 28 may be provided on the movable platen 12 or the suction plate 22. Further, the mold opening / closing mechanism is not limited to the linear motor 28, and may be a hydraulic type or an electric type.

可動プラテン12が前進させられて可動金型16が固定金型15に当接すると、型閉じが行われ、続いて、型締めが行われる。そして、型締めを行うために、リヤプラテン13と吸着板22との間に、電磁石ユニット37が配設される。そして、リヤプラテン13及び吸着板22を貫通して延び、かつ、可動プラテン12と吸着板22とを連結するセンターロッド39が進退自在に配設される。該センターロッド39は、型閉じ時及び型開き時に、可動プラテン12の進退に連動させて吸着板22を進退させ、型締め時に、電磁石ユニット37によって発生させられた型締力を可動プラテン12に伝達する。   When the movable platen 12 is moved forward and the movable mold 16 abuts against the fixed mold 15, the mold is closed and subsequently the mold is clamped. An electromagnet unit 37 is disposed between the rear platen 13 and the suction plate 22 in order to perform mold clamping. A center rod 39 extending through the rear platen 13 and the suction plate 22 and connecting the movable platen 12 and the suction plate 22 is disposed so as to freely advance and retract. The center rod 39 advances and retracts the suction plate 22 in conjunction with the advance and retreat of the movable platen 12 when the mold is closed and when the mold is opened, and the mold clamping force generated by the electromagnet unit 37 is applied to the movable platen 12 when the mold is clamped. introduce.

尚、固定プラテン11、可動プラテン12、リヤプラテン13、吸着板22、リニアモータ28、電磁石ユニット37、センターロッド39等によって型締装置10が構成される。   The fixed platen 11, the movable platen 12, the rear platen 13, the suction plate 22, the linear motor 28, the electromagnet unit 37, the center rod 39, and the like constitute the mold clamping device 10.

電磁石ユニット37は、リヤプラテン13側に形成された電磁石49、及び吸着板22側に形成された吸着部51からなる。また、リヤプラテン13の後端面の所定の部分、本実施の形態においては、センターロッド39まわりに溝45が形成され、溝45よりも内側にコア(内極)46、及び溝45よりも外側にヨーク(外極)47が形成される。そして、溝45内でコア46まわりにコイル48が巻装される。また、リヤプラテン13におけるタイバー14側(バックヨーク部)の表面には、後述の鍵溝47aが形成される。鍵溝47aには、後述の嵌め込み部材90が嵌め込まれる。   The electromagnet unit 37 includes an electromagnet 49 formed on the rear platen 13 side and a suction portion 51 formed on the suction plate 22 side. Further, in the present embodiment, a groove 45 is formed around the center rod 39 in the predetermined portion of the rear end surface of the rear platen 13, and the core (inner pole) 46 and the groove 45 are located outside the groove 45. A yoke (outer pole) 47 is formed. A coil 48 is wound around the core 46 in the groove 45. Further, a keyway 47a described later is formed on the surface of the rear platen 13 on the tie bar 14 side (back yoke portion). A fitting member 90 described later is fitted into the keyway 47a.

尚、本実施の形態において、リヤプラテン13とは別に電磁石49が、吸着板22とは別に吸着部51が形成されもよいし、リヤプラテン13の一部として電磁石を、吸着板22の一部として吸着部を形成してもよい。また、電磁石と吸着部の配置は、逆であってもよい。例えば、吸着板22側に電磁石49を設け、リヤプラテン13側に吸着部を設けてもよい。   In the present embodiment, the electromagnet 49 may be formed separately from the rear platen 13, and the adsorption portion 51 may be formed separately from the adsorption plate 22, or the electromagnet may be adsorbed as a part of the rear platen 13 and adsorbed as a part of the adsorption plate 22. A part may be formed. Further, the arrangement of the electromagnet and the attracting part may be reversed. For example, the electromagnet 49 may be provided on the suction plate 22 side, and the suction portion may be provided on the rear platen 13 side.

電磁石ユニット37において、コイル48に電流を供給すると、電磁石49が駆動され、吸着部51を吸着し、型締力を発生させることができる。   When an electric current is supplied to the coil 48 in the electromagnet unit 37, the electromagnet 49 is driven to attract the attracting part 51 and generate a mold clamping force.

センターロッド39は、後端部において吸着板22と連結させて、前端部において可動プラテン12と連結させて配設される。したがって、センターロッド39は、型閉じ時に可動プラテン12と共に前進させられて吸着板22を前進させ、型開き時に可動プラテン12と共に後退させられて吸着板22を後退させる。そのために、リヤプラテン13の中央部分に、センターロッド39を貫通させるための角穴41が形成される。なお、リヤプラテン13が電磁積層鋼板により構成される場合、角穴41の部分の電磁積層鋼板は、分割により形成されてもよいし(図3のX1参照)、若しくは、積層後、角穴41が加工により形成されてもよい。   The center rod 39 is connected to the suction plate 22 at the rear end and is connected to the movable platen 12 at the front end. Therefore, the center rod 39 is advanced together with the movable platen 12 when the mold is closed to advance the suction plate 22, and is retracted together with the movable platen 12 when the mold is opened to retract the suction plate 22. For this purpose, a square hole 41 for penetrating the center rod 39 is formed in the central portion of the rear platen 13. When the rear platen 13 is formed of an electromagnetic laminated steel plate, the electromagnetic laminated steel plate in the portion of the square hole 41 may be formed by division (see X1 in FIG. 3), or the square hole 41 may be formed after lamination. It may be formed by processing.

型締装置10のリニアモータ28及び電磁石49の駆動は、制御部60によって制御される。制御部60は、CPU及びメモリ等を備え、CPUによって演算された結果に応じて、リニアモータ28のコイル35や電磁石49のコイル48に電流を供給するための回路も備える。制御部60には、また、荷重検出器55が接続される。荷重検出器55は、型締装置10において、少なくとも1本のタイバー14の所定の位置(固定プラテン11とリヤプラテン13との間における所定の位置)に設置され、当該タイバー14にかかる荷重を検出する。図中では、上下二本のタイバー14に荷重検出器55が設置された例が示されている。荷重検出器55は、例えば、タイバー14の伸び量を検出するセンサによって構成される。荷重検出器55によって検出された荷重は、制御部60に送られる。尚、制御部60は、図2においては便宜上省略されている。   The driving of the linear motor 28 and the electromagnet 49 of the mold clamping device 10 is controlled by the control unit 60. The control unit 60 includes a CPU, a memory, and the like, and also includes a circuit for supplying current to the coil 35 of the linear motor 28 and the coil 48 of the electromagnet 49 according to the result calculated by the CPU. A load detector 55 is also connected to the control unit 60. The load detector 55 is installed at a predetermined position (a predetermined position between the fixed platen 11 and the rear platen 13) of at least one tie bar 14 in the mold clamping device 10, and detects a load applied to the tie bar 14. . In the drawing, an example in which a load detector 55 is installed on two upper and lower tie bars 14 is shown. The load detector 55 is constituted by, for example, a sensor that detects the extension amount of the tie bar 14. The load detected by the load detector 55 is sent to the control unit 60. Note that the control unit 60 is omitted for the sake of convenience in FIG.

次に、型締装置10の動作について説明する。   Next, the operation of the mold clamping device 10 will be described.

制御部60の型開閉処理部61によって型閉じ工程が制御される。図2の状態(型開き時の状態)において、型開閉処理部61は、コイル35に電流を供給する。続いて、リニアモータ28が駆動され、可動プラテン12が前進させられ、図1に示されるように、可動金型16が固定金型15に当接させられる。このとき、リヤプラテン13と吸着板22との間、すなわち、電磁石49と吸着部51との間には、ギャップδが形成される。尚、型閉じに必要とされる力は、型締力と比較されて十分に小さくされる。   The mold closing process is controlled by the mold opening / closing processor 61 of the controller 60. In the state of FIG. 2 (the state at the time of mold opening), the mold opening / closing processor 61 supplies current to the coil 35. Subsequently, the linear motor 28 is driven, the movable platen 12 is advanced, and the movable mold 16 is brought into contact with the fixed mold 15 as shown in FIG. At this time, a gap δ is formed between the rear platen 13 and the suction plate 22, that is, between the electromagnet 49 and the suction portion 51. Note that the force required for mold closing is sufficiently reduced compared to the mold clamping force.

続いて、制御部60の型締処理部62は、型締工程を制御する。型締処理部62は、コイル48に電流を供給し、吸着部51を電磁石49の吸着力によって吸着する。それに伴って、吸着板22及びセンターロッド39を介して型締力が可動プラテン12に伝達され、型締めが行われる。型締め開始時等、型締力を変化させる際に、型締処理部62は、当該変化によって得るべき目標となる型締力、すなわち、定常状態で目標とする型締力を発生させるために必要な定常的な電流の値をコイル48に供給するように制御している。   Subsequently, the mold clamping processing unit 62 of the control unit 60 controls the mold clamping process. The mold clamping unit 62 supplies current to the coil 48 and attracts the attracting unit 51 by the attracting force of the electromagnet 49. Along with this, the clamping force is transmitted to the movable platen 12 through the suction plate 22 and the center rod 39, and clamping is performed. When changing the clamping force such as at the start of clamping, the clamping unit 62 generates a target clamping force to be obtained by the change, that is, a target clamping force in a steady state. Control is performed so that the necessary steady-state current value is supplied to the coil 48.

尚、型締力は荷重検出器55によって検出される。検出された型締力は制御部60に送られ、制御部60において、型締力が設定値になるようにコイル48に供給される電流が調整され、フィードバック制御が行われる。この間、射出装置17において溶融させられた樹脂が射出ノズル18から射出され、金型装置19のキャビティ空間に充墳される。   The mold clamping force is detected by the load detector 55. The detected mold clamping force is sent to the control unit 60, where the current supplied to the coil 48 is adjusted so that the mold clamping force becomes a set value, and feedback control is performed. During this time, the resin melted in the injection device 17 is injected from the injection nozzle 18 and filled into the cavity space of the mold device 19.

キャビティ空間内の樹脂が冷却されて固化すると、型開閉処理部61は、型開き工程を制御する。型締処理部62は、図1の状態において、コイル48への電流の供給を停止する。それに伴って、リニアモータ28が駆動され、可動プラテン12が後退させられ、図2に示されるように、可動金型16が後退限位置に置かれ、型開きが行われる。   When the resin in the cavity space is cooled and solidified, the mold opening / closing processor 61 controls the mold opening process. The mold clamping processing unit 62 stops the supply of current to the coil 48 in the state of FIG. Along with this, the linear motor 28 is driven, the movable platen 12 is moved backward, and the movable mold 16 is placed in the retracted limit position as shown in FIG.

尚、図示の例では、吸着板22の後方側には、型厚調整機構44が設けられる。型厚調整機構44は、金型装置19の厚さに対応させて、ギャップδを調整する機構である。例えば、型厚調整機構44は、図示しない型厚調整用モータにより吸着板22に対するセンターロッド39の位置を可変する。これにより、吸着板22に対するセンターロッド39の位置が調整され、固定プラテン11及び可動プラテン12に対する吸着板22の位置が調整されて、ギャップδを最適な値にすることができる。すなわち、可動プラテン12と吸着板22との相対的な位置を変えることによって、型厚の調整が行われる。   In the illustrated example, a mold thickness adjusting mechanism 44 is provided on the rear side of the suction plate 22. The mold thickness adjusting mechanism 44 is a mechanism that adjusts the gap δ according to the thickness of the mold apparatus 19. For example, the mold thickness adjusting mechanism 44 varies the position of the center rod 39 with respect to the suction plate 22 by a mold thickness adjusting motor (not shown). Thereby, the position of the center rod 39 with respect to the suction plate 22 is adjusted, and the positions of the suction plate 22 with respect to the fixed platen 11 and the movable platen 12 are adjusted, so that the gap δ can be set to an optimum value. That is, the mold thickness is adjusted by changing the relative positions of the movable platen 12 and the suction plate 22.

ここで、図3以降を参照して、本発明の特徴的な構成について説明する。   Here, a characteristic configuration of the present invention will be described with reference to FIG.

図3は、本発明の一実施例(実施例1)によるリヤプラテン13を示す斜視図である。図4は、リヤプラテン13の幾つかの主要断面を示し、図4(A)は、図3のラインA−Aに沿った断面図であり、図4(B)は、図3のラインB−Bに沿った断面図であり、図4(C)は、図3のラインC−Cに沿った断面図である。図5は、鍵溝47aの他の形状の例を示す図である。尚、図3及び図4において、矢印h、矢印Vは、それぞれリヤプラテン13の左右方向(水平方向)、上下方向(垂直方向)を示す。但し、これらの方向は射出成形機の設置状態(向き)に応じて変化するため、あくまで便宜的なものである。また、矢印fはリヤプラテン13の前方を示す。   FIG. 3 is a perspective view showing the rear platen 13 according to one embodiment (first embodiment) of the present invention. 4 shows some main cross sections of the rear platen 13, FIG. 4 (A) is a cross-sectional view along the line AA in FIG. 3, and FIG. 4 (B) shows a line B- in FIG. 4B is a cross-sectional view taken along line B, and FIG. 4C is a cross-sectional view taken along line CC in FIG. FIG. 5 is a diagram showing an example of another shape of the keyway 47a. 3 and 4, arrows h and V indicate the left and right direction (horizontal direction) and the vertical direction (vertical direction) of the rear platen 13, respectively. However, these directions change depending on the installation state (orientation) of the injection molding machine, and are merely convenient. An arrow f indicates the front of the rear platen 13.

リヤプラテン13は、電磁積層鋼板により構成されてもよい。尚、電磁積層鋼板は、強磁性体から成る薄板(鋼板)を絶縁層を介して積層することによって形成されてよい。或いは、電磁積層鋼板は、絶縁層が形成された鋼板を積層することによって形成されてよい。図3に示す例では、鋼板は、リヤプラテン13の左右方向(矢印h)に沿って積層されている。リヤプラテン13は、複数の電磁積層鋼板を一体化して形成されてもよい。例えば、図3に示す例では、リヤプラテン13は、角穴41に対応して設定される上下方向の2つのラインX1にて分割された4つの電磁積層鋼板を一体化して構成されている。尚、一体化するための電磁積層鋼板の数や分割態様(分割方向等)は任意である。例えば、図3に示す例では、上下方向(矢印V)に分割しているが、左右方向(矢印h)に分割してもよい。このようにリヤプラテン13が複数の電磁積層鋼板を一体化して形成される場合、1つの積層鋼板で構成が困難な比較的大きな体格のリヤプラテン13を構成することができる。尚、複数の電磁積層鋼板は、後述の嵌め込み部材90で一体化される。   The rear platen 13 may be made of an electromagnetic laminated steel plate. The electromagnetic laminated steel plate may be formed by laminating thin plates (steel plates) made of a ferromagnetic material via an insulating layer. Or an electromagnetic laminated steel plate may be formed by laminating | stacking the steel plate in which the insulating layer was formed. In the example shown in FIG. 3, the steel plates are stacked along the left-right direction (arrow h) of the rear platen 13. The rear platen 13 may be formed by integrating a plurality of electromagnetic laminated steel plates. For example, in the example shown in FIG. 3, the rear platen 13 is configured by integrating four electromagnetic laminated steel plates divided by two vertical lines X <b> 1 set corresponding to the square holes 41. In addition, the number and division | segmentation aspect (division direction etc.) of the electromagnetic laminated steel plates for integrating are arbitrary. For example, in the example shown in FIG. 3, although divided in the vertical direction (arrow V), it may be divided in the horizontal direction (arrow h). In this way, when the rear platen 13 is formed by integrating a plurality of electromagnetic laminated steel plates, the rear platen 13 having a relatively large physique that is difficult to configure with a single laminated steel plate can be formed. The plurality of electromagnetic laminated steel plates are integrated by a fitting member 90 described later.

リヤプラテン13の後端面には、図3に示されるように、溝45が面直視で矩形状になるパターンで形成されている。尚、溝45によって囲繞される内側の凸部がコア46を形成する。   As shown in FIG. 3, a groove 45 is formed on the rear end surface of the rear platen 13 in a pattern that becomes rectangular when viewed from the front. An inner convex portion surrounded by the groove 45 forms the core 46.

リヤプラテン13の前端面には、図3及び図4に示すように、鍵溝47aが形成される。鍵溝47aは、任意の方向に延在してもよいが、好ましくは、製造性の観点から、電磁積層鋼板の積層方向に延在する態様で形成される。即ち、鍵溝47aは、好ましくは、電磁積層鋼板の鋼板に対して面直方向に延在する態様で形成される。鍵溝47aは、図3及び図4に示すように、等断面で直線的に延在してもよい。   As shown in FIGS. 3 and 4, a keyway 47 a is formed on the front end surface of the rear platen 13. The keyway 47a may extend in any direction, but is preferably formed in a mode extending in the lamination direction of the electromagnetic laminated steel sheet from the viewpoint of manufacturability. That is, the keyway 47a is preferably formed in a mode extending in a direction perpendicular to the steel sheet of the electromagnetic laminated steel sheet. As shown in FIGS. 3 and 4, the keyway 47 a may extend linearly in an equal cross section.

図3に示す例では、鍵溝47aの断面形状は、入口側(表面側)が短辺となる台形(楔形)であり、この場合、台形の斜辺に対応する面が係止部47b(図4(A)参照)を構成する。尚、鍵溝47aの断面形状は、底側の方が入口側よりも幅が広くなって係止部47bを有する態様であればよく、任意である。例えば、鍵溝47aは、図5(A)に示すように、底側が広がるT字形であってもよいし、図5(B)に示すように、底側が広がるL字形であってもよい。   In the example shown in FIG. 3, the cross-sectional shape of the keyway 47a is a trapezoid (wedge shape) having a short side on the entrance side (surface side). In this case, the surface corresponding to the hypotenuse of the trapezoid is the locking portion 47b (FIG. 4 (A)). The cross-sectional shape of the keyway 47a is arbitrary as long as the bottom side is wider than the inlet side and has the locking portion 47b. For example, the keyway 47a may be T-shaped with the bottom side widened as shown in FIG. 5 (A), or may be L-shaped with the bottom side widened as shown in FIG. 5 (B).

図6は、図3に示すリヤプラテン13の鍵溝47aに嵌め込まれる嵌め込み部材90の一例を示す斜視図である。   FIG. 6 is a perspective view showing an example of a fitting member 90 fitted in the keyway 47a of the rear platen 13 shown in FIG.

嵌め込み部材90は、金属のような強度・剛性の高い材料から形成される。嵌め込み部材90は、リヤプラテン13の鍵溝47aに対して、実質的に隙間無く嵌め込まれる形状を有する。即ち、嵌め込み部材90の断面形状は、鍵溝47aの断面形状に対応する。即ち、図示の例では、嵌め込み部材90の断面形状は、台形(楔形)である。但し、後述のスライド式の嵌めこみを可能とするために、嵌め込み部材90の断面形状は、鍵溝47aの断面形状よりも僅かに小さい形状(例えば縮小された相似形状)であってもよい。また、嵌め込み部材90は、好ましくは、鍵溝47aの長手方向(矢印h)の長さと略同一の長さで延在する。   The fitting member 90 is formed from a material having high strength and rigidity such as metal. The fitting member 90 has a shape that is fitted into the key groove 47a of the rear platen 13 with substantially no gap. That is, the cross-sectional shape of the fitting member 90 corresponds to the cross-sectional shape of the keyway 47a. That is, in the illustrated example, the cross-sectional shape of the fitting member 90 is a trapezoid (wedge shape). However, the cross-sectional shape of the fitting member 90 may be slightly smaller than the cross-sectional shape of the keyway 47a (for example, a reduced similar shape) in order to enable a slide-type fitting described later. Further, the fitting member 90 preferably extends with substantially the same length as the length of the keyway 47a in the longitudinal direction (arrow h).

嵌め込み部材90は、リヤプラテン13の鍵溝47aに対して、リヤプラテン13の左右方向の端部側から挿入してスライド式に嵌め込まれる。この際、嵌め込み部材90は、所定の形状に成形した電磁積層鋼板に装着されてもよい。例えばリヤプラテン13が上述の如く複数の電磁積層鋼板から構成される場合、複数の電磁積層鋼板の対応する鍵溝47aに嵌め込み部材90が挿入される。この場合、嵌め込み部材90は、複数の電磁積層鋼板間の位置決め機能を果たすことができる。即ち、複数の電磁積層鋼板は、嵌め込み部材90を介して互いに対して所期の位置関係で一体化されることができる。また、嵌め込み部材90は、タイバー14に結合されるので、複数の電磁積層鋼板は、嵌め込み部材90を介してタイバー14に対して所期の位置関係で一体化されることができる。尚、リヤプラテン13を構成する電磁積層鋼板は、嵌め込み部材90に各鋼板を装着してから一体化されてもよい。この場合、例えばリヤプラテン13が1つの電磁積層鋼板から構成される場合でも、嵌め込み部材90は、各鋼板を位置決めする機能を果たすことができる。   The fitting member 90 is inserted into the key groove 47a of the rear platen 13 from the end in the left-right direction of the rear platen 13, and is fitted in a sliding manner. At this time, the fitting member 90 may be attached to an electromagnetic laminated steel sheet formed into a predetermined shape. For example, when the rear platen 13 is composed of a plurality of electromagnetic laminated steel plates as described above, the fitting members 90 are inserted into the corresponding key grooves 47a of the plurality of electromagnetic laminated steel plates. In this case, the fitting member 90 can fulfill the positioning function between the plurality of electromagnetic laminated steel plates. That is, the plurality of electromagnetic laminated steel plates can be integrated with each other with the desired positional relationship with respect to each other via the fitting member 90. In addition, since the fitting member 90 is coupled to the tie bar 14, the plurality of electromagnetic laminated steel plates can be integrated with the tie bar 14 through the fitting member 90 in an intended positional relationship. The electromagnetic laminated steel plates constituting the rear platen 13 may be integrated after the respective steel plates are mounted on the fitting members 90. In this case, for example, even when the rear platen 13 is composed of one electromagnetic laminated steel plate, the fitting member 90 can fulfill the function of positioning each steel plate.

図7は、射出成形機におけるリヤプラテン13の鍵溝47aと嵌め込み部材90に関連した要部のみを取り出した断面図である。   FIG. 7 is a cross-sectional view showing only the main parts related to the keyway 47a and the fitting member 90 of the rear platen 13 in the injection molding machine.

図7に示すように、嵌め込み部材90にはタイバー14が結合される。この結合態様は、ボルト結合等を含む任意の態様であってよい。従って、リヤプラテン13は、嵌め込み部材90を介してタイバー14が結合される。換言すると、リヤプラテン13は、嵌め込み部材90を介してタイバー14により吸引方向に吊るされる。これにより、リヤプラテン13において発生しうるせん断力や曲げ応力を低減することができる。   As shown in FIG. 7, the tie bar 14 is coupled to the fitting member 90. This coupling mode may be any mode including bolt coupling and the like. Therefore, the tie bar 14 is coupled to the rear platen 13 via the fitting member 90. In other words, the rear platen 13 is suspended in the suction direction by the tie bar 14 via the fitting member 90. Thereby, the shearing force and bending stress which can be generated in the rear platen 13 can be reduced.

ところで、型締工程時においてはリヤプラテン13が吸着部51を吸着するので、リヤプラテン13は、その反力を受け、図7に矢印Pにて示すように、引張り力を受ける。この引張り力は、リヤプラテン13に対して、タイバー14に結合された嵌め込み部材90から引き抜く方向に作用する。この点、本実施例によれば、上述の如く、係止部47bを有する鍵溝47aに嵌め込み部材90が嵌め込まれているので、リヤプラテン13が嵌め込み部材90から抜け出すことを防止することができる。   By the way, since the rear platen 13 sucks the suction portion 51 during the mold clamping process, the rear platen 13 receives the reaction force and receives a tensile force as indicated by an arrow P in FIG. This pulling force acts on the rear platen 13 in the direction of pulling out from the fitting member 90 coupled to the tie bar 14. In this regard, according to the present embodiment, as described above, since the fitting member 90 is fitted into the keyway 47a having the locking portion 47b, it is possible to prevent the rear platen 13 from coming out of the fitting member 90.

図8は、リヤプラテン13の端面に取り付けられてもよい抜け防止板材92の一例を示す図である。   FIG. 8 is a diagram illustrating an example of the slip-off prevention plate member 92 that may be attached to the end surface of the rear platen 13.

リヤプラテン13の左右方向(矢印h)の端面には、図8に示すように、リヤプラテン13からの嵌め込み部材90の左右方向の抜けを防止する抜け防止板材92が取り付けられてもよい。抜け防止板材92は、リヤプラテン13(電磁積層鋼板)に溶接等により固定されてもよい。抜け防止板材92は、リヤプラテン13の鍵溝47aの左右方向の開口を塞ぎ、リヤプラテン13からの嵌め込み部材90の左右方向の抜けを防止する機能を果たす。尚、図示の例では、抜け防止板材92は、リヤプラテン13の左右方向の端面を構成する鋼板と同一の形状を有しているが、リヤプラテン13の鍵溝47aを少なくとも部分的に塞いで上記の抜け防止機能を果たすものであれば、任意の形状であってよい。また、図示の例では、抜け防止板材92は、リヤプラテン13の左右方向の両端面に設けられているが、一方の端面のみに設けられてもよい。この場合、好ましくは、嵌め込み部材90は、一方の端面のみに設けられる抜け防止板材92に対して固定される。   As shown in FIG. 8, a removal prevention plate material 92 that prevents the fitting member 90 from coming off from the rear platen 13 in the left-right direction may be attached to the end surface of the rear platen 13 in the left-right direction (arrow h). The come-off prevention plate member 92 may be fixed to the rear platen 13 (electromagnetic laminated steel plate) by welding or the like. The removal prevention plate member 92 functions to block the opening in the left-right direction of the keyway 47 a of the rear platen 13 and prevent the fitting member 90 from coming off from the rear platen 13 in the left-right direction. In the example shown in the drawing, the slip-off prevention plate member 92 has the same shape as the steel plate constituting the end surface in the left-right direction of the rear platen 13, but at least partially closes the key groove 47a of the rear platen 13. Any shape may be used as long as it has a function of preventing omission. Further, in the example shown in the figure, the drop prevention plate members 92 are provided on both end surfaces of the rear platen 13 in the left-right direction, but may be provided only on one end surface. In this case, preferably, the fitting member 90 is fixed to a slip-off preventing plate member 92 provided only on one end surface.

図9は、本発明の他の一実施例(実施例2)によるリヤプラテン130を示す斜視図である。図10は、リヤプラテン130の幾つかの主要断面を示し、図10(A)は、図9のラインA−Aに沿った断面図であり、図10(B)は、図9のラインB−Bに沿った断面図であり、図10(C)は、図9のラインC−Cに沿った断面図である。   FIG. 9 is a perspective view showing a rear platen 130 according to another embodiment (Embodiment 2) of the present invention. 10 shows several main cross sections of the rear platen 130, FIG. 10 (A) is a cross-sectional view along line AA in FIG. 9, and FIG. 10 (B) is a line B- in FIG. FIG. 10C is a cross-sectional view taken along line CC in FIG. 9.

本実施例2によるリヤプラテン130は、上述した実施例1によるリヤプラテン13に対して、2つの極が形成されて多極化されている点が主に異なる。以下では、上述した実施例1との相違点のみを主に説明し、上述した実施例1と同一であってよい構成については、同一の参照符号を付して説明を省略する。   The rear platen 130 according to the second embodiment is mainly different from the rear platen 13 according to the first embodiment described above in that two poles are formed to be multipolar. In the following, only the differences from the above-described first embodiment will be mainly described, and the components that may be the same as those of the above-described first embodiment are denoted by the same reference numerals and the description thereof is omitted.

図9に示す例では、リヤプラテン130は、多極化(2極化)に対応して、コイル(図示せず)が収容される2組の溝45A及び45Bが、それぞれ上面視で矩形状に形成されている。尚、溝45A及び45Bによって形成される囲繞される内側の各凸部が2組のコア46A及び46Bを形成する。但し、溝45A及び45Bの形成パターンは多種多様であり、極数も任意である。   In the example shown in FIG. 9, the rear platen 130 has two sets of grooves 45 </ b> A and 45 </ b> B in which coils (not shown) are accommodated in a rectangular shape in a top view corresponding to the multipolarization (bipolarization). ing. Each of the enclosed inner convex portions formed by the grooves 45A and 45B forms two sets of cores 46A and 46B. However, the formation patterns of the grooves 45A and 45B are various, and the number of poles is also arbitrary.

リヤプラテン130は、リヤプラテン13と同様、電磁積層鋼板により構成されてもよい。また、リヤプラテン130は、複数の電磁積層鋼板を一体化して形成されてもよい。例えば、図9に示す例では、リヤプラテン130は、角穴41に対応して設定される上下方向及び左右方向それぞれ2つのラインX1にて分割された8つの電磁積層鋼板を一体化して構成されている。かかる分割態様によれば、同一形状の鋼板により複数の電磁積層鋼板を形成することができ、製造上有利となる。例えば、図9に示す例では、4隅の4つの電磁積層鋼板は、同一形状の鋼板の組み合わせにより製造することができ、角穴41を挟んで対向する各組の電磁積層鋼板についても、それぞれ、同一形状の鋼板により製造することができる。尚、一体化するための電磁積層鋼板の数や分割態様は任意である。また、リヤプラテン130の前端面は、リヤプラテン13と同様、鍵溝47aが形成される。鍵溝47aには、上述の実施例1と同様、嵌め込み部材90(図6参照)が嵌め込まれる。   The rear platen 130 may be made of an electromagnetic laminated steel plate, like the rear platen 13. The rear platen 130 may be formed by integrating a plurality of electromagnetic laminated steel plates. For example, in the example shown in FIG. 9, the rear platen 130 is configured by integrating eight electromagnetic laminated steel plates divided by two lines X <b> 1 in the vertical direction and the horizontal direction set corresponding to the square holes 41. Yes. According to this division | segmentation aspect, a some electromagnetic laminated steel plate can be formed with the steel plate of the same shape, and it becomes advantageous on manufacture. For example, in the example shown in FIG. 9, the four electromagnetic laminated steel plates at the four corners can be manufactured by a combination of steel plates having the same shape. It can be manufactured from steel plates having the same shape. In addition, the number and division | segmentation aspect of the electromagnetic laminated steel plate for integrating are arbitrary. Further, the front end surface of the rear platen 130 is formed with a keyway 47 a as with the rear platen 13. The fitting member 90 (see FIG. 6) is fitted into the keyway 47a as in the first embodiment.

このような多極化を実現するリヤプラテン130を用いた場合でも、上述の実施例1と同様の効果を得ることができる。特に多極化を行う場合には、リヤプラテン130を複数の電磁積層鋼板で一体的に構成する必要性が高くなり(また、電磁積層鋼板の個数が多くなりうり)、この点で、上述の嵌め込み部材90による位置決め機能がより有効に機能する。また、多極化しつつ電磁積層鋼板を複数に分ける場合には、電磁積層鋼板の幅を大幅に低減することができる。また、多極化の効果によりバックヨーク部の厚みも低減でき、これにより更に電磁積層鋼板の小型化を図ることができる。   Even when the rear platen 130 that realizes such multipolarization is used, the same effect as in the first embodiment can be obtained. In particular, when multipolarization is performed, it is necessary to integrally form the rear platen 130 with a plurality of electromagnetic laminated steel plates (and the number of electromagnetic laminated steel plates may increase), and in this respect, the fitting member 90 described above. The positioning function by functions more effectively. In addition, when the electromagnetic laminated steel sheet is divided into a plurality of parts while increasing the number of poles, the width of the electromagnetic laminated steel sheet can be greatly reduced. In addition, the thickness of the back yoke portion can be reduced due to the effect of increasing the number of poles, thereby further reducing the size of the electromagnetic laminated steel sheet.

尚、本実施例2においても、上述の実施例1と同様、リヤプラテン130の端面に、抜け防止板材(図8の抜け防止板材92参照)が取り付けられてもよい。   In the second embodiment as well, as in the first embodiment described above, a removal prevention plate member (see the removal prevention plate member 92 in FIG. 8) may be attached to the end surface of the rear platen 130.

図11は、嵌め込み部材90とタイバー14との結合態様のその他の例を示す図であり、射出成形機におけるリヤプラテン130の鍵溝47aと嵌め込み部材90に関連した要部のみを取り出した断面図である。   FIG. 11 is a view showing another example of the coupling mode between the fitting member 90 and the tie bar 14, and is a cross-sectional view in which only key portions related to the key groove 47 a of the rear platen 130 and the fitting member 90 in the injection molding machine are taken out. is there.

図11に示す例では、嵌め込み部材90は、2列の鍵溝47aに対応して2本設けられる。2本の嵌め込み部材90は、連結部材94を介して互いに結合される。連結部材94は、2本の嵌め込み部材90に、例えばボルト等により固定されてもよいし、2本の嵌め込み部材90と一体に形成されてもよい。連結部材94は、嵌め込み部材90と同様、金属のような強度・剛性の高い材料から形成される。連結部材94には、タイバー14が結合される。これにより、タイバー14におけるリヤプラテン130側の端部は、連結部材94を介して嵌め込み部材90に結合される。このようにして、2本の嵌め込み部材90は、2本の嵌め込み部材90に結合して該2本の嵌め込み部材90を一体化する1つの連結部材94を介して、タイバー14に固定されてもよい。   In the example shown in FIG. 11, two fitting members 90 are provided corresponding to two rows of keyways 47a. The two fitting members 90 are coupled to each other via a connecting member 94. The connecting member 94 may be fixed to the two fitting members 90 with, for example, bolts or may be formed integrally with the two fitting members 90. Similar to the fitting member 90, the connecting member 94 is formed of a material having high strength and rigidity such as metal. The tie bar 14 is coupled to the connecting member 94. As a result, the end of the tie bar 14 on the rear platen 130 side is coupled to the fitting member 90 via the connecting member 94. In this way, even if the two fitting members 90 are fixed to the tie bar 14 via one connecting member 94 that is coupled to the two fitting members 90 and integrates the two fitting members 90. Good.

尚、図11に示す例は、連結部材94は、上述の実施例2によるリヤプラテン130に対して適用されているが、連結部材94は、上述の実施例1によるリヤプラテン13に対して適用されてもよい。尚、連結部材94が連結する嵌め込み部材90の数は、任意であり、1つの連結部材94が3本以上の嵌め込み部材90を連結してもよい。また、連結部材94は、補助部材として1本の嵌め込み部材90に対して設けられてもよい。   In the example shown in FIG. 11, the connecting member 94 is applied to the rear platen 130 according to the second embodiment, but the connecting member 94 is applied to the rear platen 13 according to the first embodiment. Also good. The number of fitting members 90 to which the connecting member 94 is connected is arbitrary, and one connecting member 94 may connect three or more fitting members 90. Moreover, the connection member 94 may be provided with respect to the one fitting member 90 as an auxiliary member.

図12は、嵌め込み部材90の他の適用例を示す図であり、射出成形機における吸着板22の鍵溝22aと嵌め込み部材90に関連した要部のみを取り出した断面図である。尚、図12に示す適用例は、単独で使用することも可能であるし、上述の実施例1又は実施例2と組み合わせて使用することもできる。   FIG. 12 is a view showing another application example of the fitting member 90, and is a cross-sectional view showing only the key groove 22a of the suction plate 22 and the main part related to the fitting member 90 in the injection molding machine. Note that the application example shown in FIG. 12 can be used alone or in combination with the first embodiment or the second embodiment described above.

図12に示す適用例では、吸着板22は、上述の実施例1によるリヤプラテン13の鍵溝47aと同様の態様で、鍵溝22aが形成される。鍵溝22aは、吸着板22における型厚調整機構44側の表面に形成される。鍵溝22aの形状等については、上述の実施例1によるリヤプラテン13の鍵溝47aと同様であってよい。鍵溝22aには、上述の実施例1と同様の態様で、嵌め込み部材90が挿入されスライド式に嵌め込まれる。尚、吸着板22は、上述の実施例1と同様、鍵溝22aが開口する側の端面に抜け防止板材(図8の抜け防止板材92参照)が取り付けられてもよい。また、同様に、吸着板22は、複数の電磁積層鋼板を一体化して形成されてもよい。   In the application example shown in FIG. 12, the suction plate 22 is formed with a keyway 22a in the same manner as the keyway 47a of the rear platen 13 according to the first embodiment. The keyway 22a is formed on the surface of the suction plate 22 on the mold thickness adjusting mechanism 44 side. The shape and the like of the key groove 22a may be the same as the key groove 47a of the rear platen 13 according to the first embodiment described above. The fitting member 90 is inserted into the keyway 22a in the same manner as in the first embodiment, and is fitted in a sliding manner. As in the first embodiment, the suction plate 22 may be attached with a stopper plate (see a stopper plate 92 in FIG. 8) on the end surface on the side where the keyway 22a is opened. Similarly, the suction plate 22 may be formed by integrating a plurality of electromagnetic laminated steel plates.

嵌め込み部材90は、型厚調整機構44を構成する部材に固定・支持されてもよい。例えば図12に示す例では、型厚調整機構44は、図示しない型厚調整用モータにより回転されるギア44aと、センターロッド39のねじ43に噛み合うと共に、ギア44aに結合され(ギア44aと共に回転し)、その回転運動によりセンターロッド39を直線運動(位置調整)させる型厚調整回転部44cと、型厚調整回転部44cを支持する支持部材44bとを含み、支持部材44bに嵌め込み部材90が固定・支持されている。尚、支持部材44bと嵌め込み部材90との間の結合態様は、ボルトを用いた結合を含む任意の態様であってよい。また、図12に示す型厚調整機構44の構成は、一例であり、型厚調整機構44は他の構成で実現されてもよい。   The fitting member 90 may be fixed and supported on a member constituting the mold thickness adjusting mechanism 44. For example, in the example shown in FIG. 12, the mold thickness adjusting mechanism 44 meshes with the gear 44a rotated by a mold thickness adjusting motor (not shown) and the screw 43 of the center rod 39, and is coupled to the gear 44a (rotates together with the gear 44a). And a mold thickness adjusting rotating part 44c that linearly moves (position adjustment) the center rod 39 by the rotational movement, and a support member 44b that supports the mold thickness adjusting rotating part 44c, and the fitting member 90 is fitted into the support member 44b. Fixed and supported. In addition, the coupling | bonding aspect between the support member 44b and the fitting member 90 may be arbitrary aspects including the coupling | bonding using a volt | bolt. Further, the configuration of the mold thickness adjusting mechanism 44 shown in FIG. 12 is an example, and the mold thickness adjusting mechanism 44 may be realized by other configurations.

図13は、本発明の別の一実施例(実施例3)によるリヤプラテン131の要部を示す断面図である。尚、本実施例の内容は、吸着板22に適用することも可能である。   FIG. 13 is a cross-sectional view showing the main part of a rear platen 131 according to another embodiment (Embodiment 3) of the present invention. The contents of this embodiment can also be applied to the suction plate 22.

図13に示すように、嵌め込み部材90は、温調流体の流路孔91を有する。流路孔91は、嵌め込み部材90を貫通しており、電磁積層鋼板の積層方向と平行に延びている。温調流体が嵌め込み部材90の内部を流れるので、電磁積層鋼板をその積層方向に貫通する貫通孔が流路となる場合と異なり、鋼板同士の間から温調流体が漏出することがない。また、温調流体が電磁積層鋼板と直接接触しないので、電磁積層鋼板の腐食が防止できる。   As shown in FIG. 13, the fitting member 90 has a flow path hole 91 for the temperature adjusting fluid. The channel hole 91 penetrates the fitting member 90 and extends in parallel with the lamination direction of the electromagnetic laminated steel sheets. Since the temperature control fluid flows through the fitting member 90, the temperature control fluid does not leak from between the steel plates, unlike the case where a through hole penetrating the electromagnetic laminated steel plate in the stacking direction becomes a flow path. Moreover, since the temperature control fluid does not directly contact the electromagnetic laminated steel sheet, corrosion of the electromagnetic laminated steel sheet can be prevented.

温調流体は、電磁積層鋼板と熱交換し、電磁積層鋼板を温調する。温調流体は、冷却水や空気などの冷媒であってよい。冷媒は、電磁積層鋼板を冷却することで、電磁石49のコイル48の過熱を抑制する。尚、温調流体は、温水などの熱媒であってもよい。   The temperature control fluid exchanges heat with the electromagnetic laminated steel sheet, and regulates the temperature of the electromagnetic laminated steel sheet. The temperature control fluid may be a coolant such as cooling water or air. The refrigerant suppresses overheating of the coil 48 of the electromagnet 49 by cooling the electromagnetic laminated steel sheet. The temperature control fluid may be a heat medium such as warm water.

尚、リヤプラテン131が複数の嵌め込み部材90を有する場合、少なくとも1つの嵌め込み部材90に流路孔91が形成されていればよい。   When the rear platen 131 has a plurality of fitting members 90, the flow path hole 91 may be formed in at least one fitting member 90.

嵌め込み部材90は、電磁積層鋼板の鍵溝47aに挿入され、例えば冷やし嵌め又は焼き嵌めで鍵溝47aに固定されてよい。   The fitting member 90 may be inserted into the key groove 47a of the electromagnetic laminated steel plate and fixed to the key groove 47a by, for example, cold fitting or shrink fitting.

冷やし嵌めでは、例えばドライアイスや液体窒素等の冷媒で嵌め込み部材90を冷却し、縮ませたうえで、嵌め込み部材90よりも高温(例えば室温)の電磁積層鋼板の鍵溝47aに挿入する。その後、嵌め込み部材90の温度が室温に戻ると、嵌め込み部材90が膨らみ、嵌め込み部材90の外壁が鍵溝47aの内壁で締め付けられる。   In the cold fitting, the fitting member 90 is cooled with a coolant such as dry ice or liquid nitrogen and contracted, and then inserted into the key groove 47a of the electromagnetic laminated steel sheet having a temperature higher than that of the fitting member 90 (for example, room temperature). Thereafter, when the temperature of the fitting member 90 returns to room temperature, the fitting member 90 expands, and the outer wall of the fitting member 90 is fastened by the inner wall of the keyway 47a.

焼き嵌めでは、電磁積層鋼板を加熱し、電磁積層鋼板の鍵溝47aの断面積を大きくしたうえで、電磁積層鋼板よりも低温(例えば室温)の嵌め込み部材90を鍵溝47aに挿入する。その後、電磁積層鋼板の温度が室温に戻ると、鍵溝47aの断面積が小さくなり、鍵溝47aの内壁で嵌め込み部材90が締め付けられる。   In shrink fitting, the electromagnetic laminated steel sheet is heated to increase the cross-sectional area of the key groove 47a of the electromagnetic laminated steel sheet, and the fitting member 90 having a lower temperature (for example, room temperature) than the electromagnetic laminated steel sheet is inserted into the key groove 47a. Thereafter, when the temperature of the electromagnetic laminated steel plate returns to room temperature, the cross-sectional area of the keyway 47a is reduced, and the fitting member 90 is tightened by the inner wall of the keyway 47a.

冷やし嵌め又は焼き嵌めによって鍵溝47aの内壁と嵌め込み部材90の外壁との間の隙間が少なくなり、接触熱抵抗が下がるので、電磁積層鋼板の温調効率が良くなる。   The gap between the inner wall of the keyway 47a and the outer wall of the fitting member 90 is reduced by cold fitting or shrink fitting, and the contact thermal resistance is lowered, so that the temperature control efficiency of the electromagnetic laminated steel sheet is improved.

鍵溝47aの内壁と、嵌め込み部材90の外壁との間には、熱伝達部材としての金属シート93が介在してよい。金属シート93の硬さは、嵌め込み部材90の硬さよりも低い(柔らかい)ことが好ましい。金属シート93の硬さは、冷やし嵌め又は焼き嵌めの前に押し込み硬さ試験法で測定される。押し込み硬さ試験法としては、例えばブリネル硬さ試験法(JIS Z2243)が用いられる。例えば、嵌め込み部材90を形成する金属がステンレス鋼の場合、金属シート93の金属としては、銅(Cu)、アルミニウム(Al)、錫(Sn)、鉛(Pb)、銀(Ag)、インジウム(In)、又はこれらのいずれか1種以上を含む合金が用いられる。柔らかさ及びコストの観点から、インジウム又はインジウム合金が特に好適に用いられる。   A metal sheet 93 as a heat transfer member may be interposed between the inner wall of the keyway 47a and the outer wall of the fitting member 90. The hardness of the metal sheet 93 is preferably lower (softer) than the hardness of the fitting member 90. The hardness of the metal sheet 93 is measured by an indentation hardness test method before cold fitting or shrink fitting. As the indentation hardness test method, for example, the Brinell hardness test method (JIS Z2243) is used. For example, when the metal forming the fitting member 90 is stainless steel, the metal of the metal sheet 93 may be copper (Cu), aluminum (Al), tin (Sn), lead (Pb), silver (Ag), indium ( In) or an alloy containing any one or more of these is used. Indium or an indium alloy is particularly preferably used from the viewpoint of softness and cost.

冷やし嵌めでは、金属シート93を嵌め込み部材90の外壁に巻き付け、金属シート93及び嵌め込み部材90を電磁積層鋼板の鍵溝47aに挿入する。冷やし嵌めでは、鍵溝47aへの挿入前に、嵌め込み部材90及び金属シート93の少なくともいずれか一方を冷媒で冷却する。   In the cold fitting, the metal sheet 93 is wound around the outer wall of the fitting member 90, and the metal sheet 93 and the fitting member 90 are inserted into the key groove 47a of the electromagnetic laminated steel sheet. In the cold fitting, at least one of the fitting member 90 and the metal sheet 93 is cooled with a refrigerant before being inserted into the keyway 47a.

例えば、鍵溝47aへの挿入前に嵌め込み部材90のみを冷媒で冷却する場合、鍵溝47aへの挿入後に嵌め込み部材90の温度が室温に戻り、鍵溝47aの内壁と嵌め込み部材90の外壁とで金属シート93が挟まれ、薄く変形する。金属シート93の変形は、弾性変形でも塑性変形でもよい。金属シート93は、嵌め込み部材90よりも柔らかい金属で形成されるので、鍵溝47aの内壁と嵌め込み部材90の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、鍵溝47aの内壁と嵌め込み部材90の外壁との両方に密着する。   For example, when only the fitting member 90 is cooled by the refrigerant before insertion into the key groove 47a, the temperature of the fitting member 90 returns to room temperature after insertion into the key groove 47a, and the inner wall of the key groove 47a and the outer wall of the fitting member 90 The metal sheet 93 is sandwiched between and deformed thinly. The deformation of the metal sheet 93 may be elastic deformation or plastic deformation. Since the metal sheet 93 is formed of a softer metal than the fitting member 90, the metal sheet 93 is deformed so as to absorb the variation in the gap between the inner wall of the key groove 47a and the outer wall of the fitting member 90, thereby filling the gap. The inner wall 47a and the outer wall of the fitting member 90 are in close contact with each other.

また、鍵溝47aへの挿入前に金属シート93のみを冷媒で冷却し、金属シート93の厚さを薄くする場合、鍵溝47aへの挿入後に金属シート93の温度が室温に戻り、金属シート93の厚さが厚くなり、鍵溝47aの内壁と嵌め込み部材90の外壁とで金属シート93が挟まれる。金属シート93は、鍵溝47aの内壁と嵌め込み部材90の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、鍵溝47aの内壁と嵌め込み部材90の外壁との両方に密着する。   Further, when only the metal sheet 93 is cooled with a refrigerant before insertion into the keyway 47a and the thickness of the metal sheet 93 is reduced, the temperature of the metal sheet 93 returns to room temperature after insertion into the keyway 47a, and the metal sheet 93 The metal sheet 93 is sandwiched between the inner wall of the keyway 47 a and the outer wall of the fitting member 90. The metal sheet 93 is deformed so as to absorb the variation in the gap between the inner wall of the keyway 47a and the outer wall of the fitting member 90 to fill the gap, and is formed on both the inner wall of the keyway 47a and the outer wall of the fitting member 90. In close contact.

焼き嵌めでは、金属シート93を嵌め込み部材90の外壁に巻き付け、加熱した電磁積層鋼板の鍵溝47aに金属シート93及び嵌め込み部材90を挿入する。その後、電磁積層鋼板の温度が室温に戻ると、鍵溝47aの断面積が小さくなり、鍵溝47aの内壁と嵌め込み部材90の外壁とで金属シート93が挟まれる。金属シート93は、鍵溝47aの内壁と嵌め込み部材90の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、鍵溝47aの内壁と嵌め込み部材90の外壁との両方に密着する。   In shrink fitting, the metal sheet 93 is wound around the outer wall of the fitting member 90, and the metal sheet 93 and the fitting member 90 are inserted into the key groove 47a of the heated electromagnetic laminated steel sheet. Thereafter, when the temperature of the electromagnetic laminated steel sheet returns to room temperature, the cross-sectional area of the key groove 47a is reduced, and the metal sheet 93 is sandwiched between the inner wall of the key groove 47a and the outer wall of the fitting member 90. The metal sheet 93 is deformed so as to absorb the variation in the gap between the inner wall of the keyway 47a and the outer wall of the fitting member 90 to fill the gap, and is formed on both the inner wall of the keyway 47a and the outer wall of the fitting member 90. In close contact.

このように、冷やし嵌め、焼き嵌めのいずれでも、金属シート93は、鍵溝47aの内壁と嵌め込み部材90の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、鍵溝47aの内壁と嵌め込み部材90の外壁との両方に密着する。よって、接触熱抵抗がさらに下がり、電磁積層鋼板の温調効率がさらに良くなる。また、上記隙間のばらつきを吸収するとき、柔らかい金属シート93が選択的に変形するので、硬い嵌め込み部材90の局所的な変形が抑えられ、嵌め込み部材90の損傷が低減される。   Thus, in both cold fitting and shrink fitting, the metal sheet 93 is deformed so as to absorb the variation in the gap between the inner wall of the keyway 47a and the outer wall of the fitting member 90, and the gap is filled. The inner wall 47a and the outer wall of the fitting member 90 are in close contact with each other. Therefore, the contact thermal resistance is further lowered, and the temperature control efficiency of the electromagnetic laminated steel sheet is further improved. Moreover, since the soft metal sheet 93 is selectively deformed when absorbing the gap variation, local deformation of the hard fitting member 90 is suppressed, and damage to the fitting member 90 is reduced.

尚、図13の熱伝達部材は、金属で形成されるが、空気よりも高い熱伝導率を有していればよく、樹脂で形成されてもよい。また、熱伝達部材は、シート状であるが、リング状であってもよい。   Although the heat transfer member in FIG. 13 is made of metal, it may be made of resin as long as it has a higher thermal conductivity than air. Further, the heat transfer member has a sheet shape, but may have a ring shape.

尚、図13の嵌め込み部材90は、冷やし嵌め、又は焼き嵌めで鍵溝47aに固定されるが、その固定方法は、冷やし嵌め、焼き嵌めに限定されない。例えば、鍵溝47aに嵌め込み部材90を挿入しておき、鍵溝47aの内壁と嵌め込み部材90の外壁との間の隙間に加熱した溶融樹脂を流し込み、溶融樹脂を冷却固化する方法等がある。この場合、鍵溝47aの内壁と、嵌め込み部材90の外壁との間に、熱伝達部材としての樹脂層が介在する。樹脂層の硬さは、嵌め込み部材90の硬さよりも低くなる。   The fitting member 90 in FIG. 13 is fixed to the keyway 47a by cold fitting or shrink fitting, but the fixing method is not limited to cold fitting or shrink fitting. For example, there is a method of inserting the fitting member 90 into the key groove 47a, pouring heated molten resin into a gap between the inner wall of the key groove 47a and the outer wall of the fitting member 90, and cooling and solidifying the molten resin. In this case, a resin layer as a heat transfer member is interposed between the inner wall of the keyway 47a and the outer wall of the fitting member 90. The hardness of the resin layer is lower than the hardness of the fitting member 90.

尚、図13では、鍵溝47aの内壁と、嵌め込み部材90の外壁との間に熱伝達部材が介在するが、熱伝達部材がなくてもよい。つまり、鍵溝47aの内壁と、嵌め込み部材90の外壁とが冷やし嵌め又は焼き嵌めによって直接密着していてもよい。   In FIG. 13, the heat transfer member is interposed between the inner wall of the keyway 47a and the outer wall of the fitting member 90, but the heat transfer member may not be provided. That is, the inner wall of the keyway 47a and the outer wall of the fitting member 90 may be in direct contact with each other by cold fitting or shrink fitting.

図14は、図13の変形例を示す図である。図14において、図13と同一の構成については同一の符号を付して説明を省略する。   FIG. 14 is a diagram showing a modification of FIG. In FIG. 14, the same components as those of FIG.

図13では嵌め込み部材90に流路孔91が形成されているのに対し、図14では嵌め込み部材90の前端面に温調流体の流路溝95が形成されており、嵌め込み部材90の前端面に蓋部材97が固定されている点で相違する。   In FIG. 13, the flow passage hole 91 is formed in the fitting member 90, whereas in FIG. 14, the temperature adjustment fluid flow passage groove 95 is formed in the front end surface of the fitting member 90, and the front end surface of the fitting member 90 is formed. This is different in that the lid member 97 is fixed to.

蓋部材97は、嵌め込み部材90にボルトなどで固定される。嵌め込み部材90と、蓋部材97との間には、温調流体の漏出を防止するシール部材が介装されてよい。尚、蓋部材97と嵌め込み部材90との固定と、嵌め込み部材13の鍵溝47aへの挿入との順序は、どちらが先であってもよい。   The lid member 97 is fixed to the fitting member 90 with a bolt or the like. Between the fitting member 90 and the lid member 97, a seal member that prevents leakage of the temperature control fluid may be interposed. Note that whichever comes first may be the order in which the lid member 97 and the fitting member 90 are fixed and the insertion of the fitting member 13 into the keyway 47a.

タイバー14は、蓋部材97に固定されてよい。   The tie bar 14 may be fixed to the lid member 97.

尚、リヤプラテンが複数の嵌め込み部材90を有する場合、少なくとも1つの嵌め込み部材90に流路溝95が形成されていればよい。   In the case where the rear platen has a plurality of fitting members 90, it is only necessary that the flow path groove 95 is formed in at least one fitting member 90.

図15は、本発明のさらに別の一実施例(実施例4)によるリヤプラテン132の要部を示す断面図である。尚、本実施例の内容は、実施例1〜実施例3の内容と組み合わせることも可能であり、また、吸着板22に適用することも可能である。   FIG. 15 is a cross-sectional view showing a main part of a rear platen 132 according to still another embodiment (Embodiment 4) of the present invention. The contents of the present embodiment can be combined with the contents of the first to third embodiments, and can also be applied to the suction plate 22.

図15のリヤプラテン132は、電磁積層鋼板を補強する補強部材98を有する点で、図7のリヤプラテン13と相違する。以下、相違点を中心に説明する。   The rear platen 132 of FIG. 15 is different from the rear platen 13 of FIG. 7 in that it has a reinforcing member 98 that reinforces the electromagnetic laminated steel plate. Hereinafter, the difference will be mainly described.

補強部材98は、例えば図15に示すように電磁積層鋼板の側面、及び/又は電磁積層鋼板の前端面等に固定される。補強部材98は、電磁積層鋼板の積層方向と平行に延びており、電磁積層鋼板の各鋼板と溶接などで連結される。   For example, as shown in FIG. 15, the reinforcing member 98 is fixed to the side surface of the electromagnetic laminated steel plate and / or the front end surface of the electromagnetic laminated steel plate. The reinforcing member 98 extends parallel to the lamination direction of the electromagnetic laminated steel plates and is connected to each steel plate of the electromagnetic laminated steel plates by welding or the like.

補強部材98には、温調流体の流路孔99が形成される。流路孔99は、電磁積層鋼板の積層方向と平行に延びている。温調流体が補強部材98の内部を流れるので、電磁積層鋼板を積層方向に貫通する貫通孔が流路となる場合と異なり、鋼板同士の間から温調流体が漏出することがない。また、温調流体が電磁積層鋼板と直接接触しないので、電磁積層鋼板の腐食が防止される。   The reinforcing member 98 is formed with a temperature control fluid channel hole 99. The flow path hole 99 extends in parallel with the lamination direction of the electromagnetic laminated steel sheet. Since the temperature control fluid flows inside the reinforcing member 98, the temperature control fluid does not leak from between the steel plates, unlike the case where a through hole penetrating the electromagnetic laminated steel plate in the stacking direction becomes a flow path. Moreover, since the temperature control fluid does not directly contact the electromagnetic laminated steel sheet, corrosion of the electromagnetic laminated steel sheet is prevented.

温調流体は、電磁積層鋼板と熱交換し、電磁積層鋼板を温調する。温調流体は、冷却水や空気などの冷媒であってよい。冷媒は、電磁積層鋼板を冷却することで、電磁石49のコイル48の過熱を抑制する。冷却効率を高めるため、尚、温調流体は、温水などの熱媒であってもよい。   The temperature control fluid exchanges heat with the electromagnetic laminated steel sheet, and regulates the temperature of the electromagnetic laminated steel sheet. The temperature control fluid may be a coolant such as cooling water or air. The refrigerant suppresses overheating of the coil 48 of the electromagnet 49 by cooling the electromagnetic laminated steel sheet. In order to increase the cooling efficiency, the temperature adjusting fluid may be a heat medium such as hot water.

タイバー14は、電磁積層鋼板の前端面に固定される補強部材98にボルトなどで固定されてよい。   The tie bar 14 may be fixed to a reinforcing member 98 fixed to the front end surface of the electromagnetic laminated steel plate with a bolt or the like.

尚、図15では、補強部材98に流路孔99が形成されているが、図14と同様に、補強部材98に温調流体の流路溝が形成されており、補強部材98の流路溝が形成される面に蓋部材が固定されていてもよい。   In FIG. 15, the flow hole 99 is formed in the reinforcing member 98, but similarly to FIG. 14, the flow channel of the temperature adjusting fluid is formed in the reinforcing member 98. The lid member may be fixed to the surface on which the groove is formed.

尚、本実施例の温調流体の流路(流路孔、流路溝)は、補強部材98に形成されるが、例えば図11に示す連結部材94、図12に示す支持部材44b等に形成されてもよい。   In addition, although the flow path (flow-path hole, flow-path groove | channel) of the temperature control fluid of a present Example is formed in the reinforcement member 98, for example in the connection member 94 shown in FIG. 11, the support member 44b shown in FIG. It may be formed.

尚、リヤプラテンが複数の補強部材98を有する場合、少なくとも1つの補強部材98に流路孔、又は流路溝が形成されていればよい。   When the rear platen has a plurality of reinforcing members 98, it is sufficient that at least one reinforcing member 98 has a flow path hole or a flow path groove.

図16は、本発明のさらに別の一実施例(実施例5)によるリヤプラテン133の要部を示す断面図である。図16において、図13(実施例3)と同一の構成には同一の符号を付して説明を省略する。尚、本実施例の内容は、吸着板22に適用することも可能である。   FIG. 16 is a cross-sectional view showing a main part of a rear platen 133 according to still another embodiment (Embodiment 5) of the present invention. In FIG. 16, the same components as those in FIG. 13 (Embodiment 3) are denoted by the same reference numerals, and description thereof is omitted. The contents of this embodiment can also be applied to the suction plate 22.

図16に示すように、嵌め込み部材90には、流路管71を挿入する挿入部としての挿入孔72が形成されている。流路管71は、嵌め込み部材90を貫通してよい。流路管71は嵌め込み部材90毎に1本ずつ設けられるが、複数本ずつ設けられてもよい。尚、リヤプラテン133が複数の嵌め込み部材90を有する場合、少なくとも1つの嵌め込み部材90の挿入部に流路管71が挿入されていればよい。   As shown in FIG. 16, the fitting member 90 is formed with an insertion hole 72 as an insertion portion into which the flow channel pipe 71 is inserted. The channel pipe 71 may penetrate the fitting member 90. One flow path pipe 71 is provided for each fitting member 90, but a plurality of flow path pipes 71 may be provided. When the rear platen 133 has a plurality of fitting members 90, the flow path pipe 71 may be inserted into the insertion portion of at least one fitting member 90.

流路管71は、例えば円筒管であって、温調流体の流路を内部に有する。温調流体が流路管71の内部を流れ、温調流体が嵌め込み部材90と直接接触しないので、嵌め込み部材90の腐食を防止できる。   The flow path pipe 71 is, for example, a cylindrical pipe, and has a temperature control fluid flow path therein. Since the temperature control fluid flows through the flow path pipe 71 and the temperature control fluid does not directly contact the fitting member 90, corrosion of the fitting member 90 can be prevented.

温調流体は、リヤプラテン133と熱交換し、リヤプラテン133を温調する。温調流体は、冷却水や空気などの冷媒であってよい。冷媒は、リヤプラテン133を冷却することで、電磁石49のコイル48の過熱を抑制する。尚、温調流体は、温水などの熱媒であってもよい。   The temperature control fluid exchanges heat with the rear platen 133 to control the temperature of the rear platen 133. The temperature control fluid may be a coolant such as cooling water or air. The refrigerant cools the rear platen 133 to suppress overheating of the coil 48 of the electromagnet 49. The temperature control fluid may be a heat medium such as warm water.

流路管71は、嵌め込み部材90の挿入孔72に挿入され、例えば冷やし嵌め、又は焼き嵌めで挿入孔72に固定されてよい。嵌め込み部材90の挿入孔72での流路管71の固定と、電磁積層鋼板の鍵溝47aでの嵌め込み部材90の固定とはどちらが先であってもよく、同時であってもよい。   The flow path pipe 71 may be inserted into the insertion hole 72 of the fitting member 90 and may be fixed to the insertion hole 72 by, for example, cold fitting or shrink fitting. Either the fixing of the flow path pipe 71 in the insertion hole 72 of the fitting member 90 or the fixing of the fitting member 90 in the key groove 47a of the electromagnetic laminated steel sheet may be either first or simultaneously.

冷やし嵌めでは、ドライアイスや液体窒素等の冷媒で流路管71を冷却し、流路管71の外径を小さくしたうえで、流路管71よりも高温(例えば室温)の嵌め込み部材90の挿入孔72に流路管71を挿入する。その後、流路管71の温度が室温に戻ると、流路管71が膨らみ、流路管71の外壁が挿入孔72の内壁で締め付けられる。   In the cold fitting, the flow path pipe 71 is cooled with a refrigerant such as dry ice or liquid nitrogen to reduce the outer diameter of the flow path pipe 71 and the fitting member 90 having a higher temperature (for example, room temperature) than the flow path pipe 71 is used. The channel pipe 71 is inserted into the insertion hole 72. Thereafter, when the temperature of the channel pipe 71 returns to room temperature, the channel pipe 71 swells and the outer wall of the channel pipe 71 is fastened by the inner wall of the insertion hole 72.

焼き嵌めでは、嵌め込み部材90を加熱し、嵌め込み部材90の挿入孔72の直径を大きくしたうえで、嵌め込み部材90よりも低温(例えば室温)の流路管71を挿入孔72に挿入する。その後、嵌め込み部材90の温度が室温に戻ると、挿入孔72の直径が縮み、挿入孔72の内壁で流路管71の外壁が締め付けられる。   In shrink fitting, the fitting member 90 is heated to increase the diameter of the insertion hole 72 of the fitting member 90, and the flow path pipe 71 having a temperature lower than that of the fitting member 90 (for example, room temperature) is inserted into the insertion hole 72. Thereafter, when the temperature of the fitting member 90 returns to room temperature, the diameter of the insertion hole 72 is reduced, and the outer wall of the flow channel tube 71 is tightened by the inner wall of the insertion hole 72.

冷やし嵌め又は焼き嵌めによって挿入孔72の内壁と流路管71の外壁との間の隙間が少なくなり、接触熱抵抗が下がるので、リヤプラテン133の温調効率が良くなる。流路管71の外壁が冷やし嵌め又は焼き嵌めによって均一に締め付けられるように、流路管71は円筒管で構成され、挿入孔72は円状の断面形状を有してよい。   The gap between the inner wall of the insertion hole 72 and the outer wall of the flow channel pipe 71 is reduced by cold fitting or shrink fitting, and the contact thermal resistance is lowered, so that the temperature regulation efficiency of the rear platen 133 is improved. The channel tube 71 may be a cylindrical tube, and the insertion hole 72 may have a circular cross-sectional shape so that the outer wall of the channel tube 71 is uniformly tightened by cold fitting or shrink fitting.

嵌め込み部材90の挿入孔72の内壁と、流路管71の外壁との間には、熱伝達部材としての金属シート73が介在してよい。金属シート73の硬さは、流路管71の硬さよりも低い(柔らかい)ことが好ましい。   A metal sheet 73 as a heat transfer member may be interposed between the inner wall of the insertion hole 72 of the fitting member 90 and the outer wall of the flow channel pipe 71. The hardness of the metal sheet 73 is preferably lower (softer) than the hardness of the channel tube 71.

冷やし嵌めでは、金属シート73を流路管71の外壁に巻き付け、金属シート73及び流路管71を嵌め込み部材90の挿入孔72に挿入する。冷やし嵌めでは、挿入孔72への挿入前に、流路管71及び金属シート73の少なくともいずれか一方を冷媒で冷却する。   In the cold fitting, the metal sheet 73 is wound around the outer wall of the channel tube 71 and the metal sheet 73 and the channel tube 71 are inserted into the insertion hole 72 of the fitting member 90. In the cold fitting, before insertion into the insertion hole 72, at least one of the channel tube 71 and the metal sheet 73 is cooled with a refrigerant.

例えば、挿入孔72への挿入前に流路管71のみを冷媒で冷却する場合、挿入孔72への挿入後に流路管71の温度が室温に戻り、流路管71が膨らみ、挿入孔72の内壁と流路管71の外壁とで金属シート73が挟まれ、薄く変形する。金属シート73の変形は、弾性変形でも塑性変形でもよい。金属シート73は、流路管71よりも柔らかい金属で形成されるので、挿入孔72の内壁と流路管71の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入孔72の内壁と流路管71の外壁との両方に密着する。   For example, when only the flow path pipe 71 is cooled with the refrigerant before insertion into the insertion hole 72, the temperature of the flow path pipe 71 returns to room temperature after insertion into the insertion hole 72, the flow path pipe 71 expands, and the insertion hole 72. The metal sheet 73 is sandwiched between the inner wall and the outer wall of the flow channel pipe 71 and deformed thinly. The deformation of the metal sheet 73 may be elastic deformation or plastic deformation. Since the metal sheet 73 is formed of a softer metal than the flow path pipe 71, the metal sheet 73 is deformed so as to absorb the variation in the gap between the inner wall of the insertion hole 72 and the outer wall of the flow path pipe 71, and the gap is filled. It closely contacts both the inner wall of the insertion hole 72 and the outer wall of the channel tube 71.

また、挿入孔72への挿入前に金属シート73のみを冷媒で冷却し、金属シート73の厚さを薄くする場合、挿入孔72への挿入後に金属シート73の温度が室温に戻り、金属シート73の厚さが厚くなり、挿入孔72の内壁と流路管71の外壁とで金属シート73が挟まれる。金属シート73は、挿入孔72の内壁と流路管71の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入孔72の内壁と流路管71の外壁との両方に密着する。   In addition, when only the metal sheet 73 is cooled with the refrigerant before insertion into the insertion hole 72 and the thickness of the metal sheet 73 is reduced, the temperature of the metal sheet 73 returns to room temperature after insertion into the insertion hole 72, The metal sheet 73 is sandwiched between the inner wall of the insertion hole 72 and the outer wall of the flow channel pipe 71. The metal sheet 73 is deformed so as to absorb the variation in the gap between the inner wall of the insertion hole 72 and the outer wall of the flow path pipe 71 to fill the gap, and the inner wall of the insertion hole 72 and the outer wall of the flow path pipe 71 are Adhere to both.

焼き嵌めでは、金属シート73を流路管71の外壁に巻き付け、加熱した嵌め込み部材90の挿入孔72に金属シート73及び流路管71を挿入する。その後、嵌め込み部材90の温度が室温に戻ると、挿入孔72の直径が縮み、挿入孔72の内壁と流路管71の外壁とで金属シート73が挟まれる。金属シート73は、挿入孔72の内壁と流路管71の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入孔72の内壁と流路管71の外壁との両方に密着する。   In shrink fitting, the metal sheet 73 is wound around the outer wall of the flow path pipe 71 and the metal sheet 73 and the flow path pipe 71 are inserted into the insertion hole 72 of the heated fitting member 90. Thereafter, when the temperature of the fitting member 90 returns to room temperature, the diameter of the insertion hole 72 is reduced, and the metal sheet 73 is sandwiched between the inner wall of the insertion hole 72 and the outer wall of the flow channel tube 71. The metal sheet 73 is deformed so as to absorb the variation in the gap between the inner wall of the insertion hole 72 and the outer wall of the flow path pipe 71 to fill the gap, and the inner wall of the insertion hole 72 and the outer wall of the flow path pipe 71 are Adhere to both.

このように、冷やし嵌め、焼き嵌めのいずれでも、金属シート73は、挿入孔72の内壁と流路管71の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入孔72の内壁と流路管71の外壁との両方に密着する。よって、接触熱抵抗がさらに下がり、リヤプラテン133の温調効率がさらに良くなる。また、上記隙間のばらつきを吸収するとき、柔らかい金属シート73が選択的に変形し、硬い流路管71の局所的な変形が抑えられるので、流路管71の損傷が低減される。   Thus, in both cold fitting and shrink fitting, the metal sheet 73 is deformed so as to absorb the variation in the gap between the inner wall of the insertion hole 72 and the outer wall of the flow channel pipe 71, and the gap is filled and inserted. It is in close contact with both the inner wall of the hole 72 and the outer wall of the channel tube 71. Therefore, the contact thermal resistance is further lowered, and the temperature regulation efficiency of the rear platen 133 is further improved. Further, when absorbing the gap variation, the soft metal sheet 73 is selectively deformed, and local deformation of the hard flow path tube 71 is suppressed, so that damage to the flow path tube 71 is reduced.

尚、本実施例の熱伝達部材は、金属で形成されるが、空気よりも高い熱伝導率を有していればよく、樹脂で形成されてもよい。また、熱伝達部材は、シート状であるが、リング状であってもよい。   In addition, although the heat transfer member of a present Example is formed with a metal, it should just have heat conductivity higher than air, and may be formed with resin. Further, the heat transfer member has a sheet shape, but may have a ring shape.

尚、本実施例の流路管71は、冷やし嵌め、又は焼き嵌めで挿入孔72に固定されるが、その固定方法は、冷やし嵌め、焼き嵌めに限定されない。例えば、挿入孔72に流路管71を挿入しておき、挿入孔72の内壁と流路管71の外壁との間の隙間に加熱した溶融樹脂を流し込み、溶融樹脂を冷却固化する方法等がある。この場合、挿入孔72の内壁と、流路管71の外壁との間に、熱伝達部材としての樹脂層が介在する。樹脂層の硬さは、流路管71の硬さよりも低くなる。   In addition, although the flow path pipe 71 of a present Example is fixed to the insertion hole 72 by cold fitting or shrink fitting, the fixing method is not limited to cold fitting and shrink fitting. For example, there is a method in which the flow path pipe 71 is inserted into the insertion hole 72, heated molten resin is poured into a gap between the inner wall of the insertion hole 72 and the outer wall of the flow path pipe 71, and the molten resin is cooled and solidified. is there. In this case, a resin layer as a heat transfer member is interposed between the inner wall of the insertion hole 72 and the outer wall of the flow channel pipe 71. The hardness of the resin layer is lower than the hardness of the flow path pipe 71.

尚、本実施例では、挿入孔72の内壁と、流路管71の外壁との間に熱伝達部材が介在するが、熱伝達部材がなくてもよい。つまり、挿入孔72の内壁と、流路管71の外壁とが冷やし嵌め又は焼き嵌めによって直接密着していてもよい。   In this embodiment, the heat transfer member is interposed between the inner wall of the insertion hole 72 and the outer wall of the flow channel pipe 71, but the heat transfer member may not be provided. That is, the inner wall of the insertion hole 72 and the outer wall of the flow channel pipe 71 may be in direct contact with each other by cold fitting or shrink fitting.

図17は、本発明のさらに別の一実施例(実施例6)によるリヤプラテン134の要部を示す断面図である。図17において、図13(実施例3)と同一の構成には同一の符号を付して説明を省略する。尚、本実施例の内容は、吸着板22に適用することも可能である。   FIG. 17 is a cross-sectional view showing the main part of a rear platen 134 according to another embodiment (Embodiment 6) of the present invention. In FIG. 17, the same components as those in FIG. 13 (Embodiment 3) are denoted by the same reference numerals, and description thereof is omitted. The contents of this embodiment can also be applied to the suction plate 22.

図17に示すように、嵌め込み部材90には、流路管75を挿入する挿入部としての挿入溝76が形成されている。流路管75は、嵌め込み部材90を貫通してよい。流路管75は嵌め込み部材90毎に1本ずつ設けられるが、複数本ずつ設けられてもよい。尚、リヤプラテン134が複数の嵌め込み部材90を有する場合、少なくとも1つの嵌め込み部材90の挿入部に流路管75が挿入されていればよい。   As shown in FIG. 17, the insertion member 90 is formed with an insertion groove 76 as an insertion portion into which the flow channel pipe 75 is inserted. The flow channel pipe 75 may penetrate the fitting member 90. One flow path pipe 75 is provided for each fitting member 90, but a plurality of flow path pipes 75 may be provided. When the rear platen 134 includes a plurality of fitting members 90, the flow path pipe 75 may be inserted into the insertion portion of at least one fitting member 90.

流路管75は、例えば角筒管であって、温調流体の流路を内部に有する。温調流体が流路管75の内部を流れ、温調流体が嵌め込み部材90と直接接触しないので、嵌め込み部材90の腐食を防止できる。   The flow channel pipe 75 is, for example, a rectangular tube, and has a temperature control fluid channel therein. Since the temperature adjusting fluid flows through the flow path pipe 75 and the temperature adjusting fluid does not directly contact the fitting member 90, corrosion of the fitting member 90 can be prevented.

温調流体は、リヤプラテン134と熱交換し、リヤプラテン134を温調する。温調流体は、冷却水や空気などの冷媒であってよい。冷媒は、リヤプラテン134を冷却することで、電磁石49のコイル48の過熱を抑制する。尚、温調流体は、温水などの熱媒であってもよい。   The temperature control fluid exchanges heat with the rear platen 134 to control the temperature of the rear platen 134. The temperature control fluid may be a coolant such as cooling water or air. The refrigerant cools the rear platen 134 to suppress overheating of the coil 48 of the electromagnet 49. The temperature control fluid may be a heat medium such as warm water.

流路管75は、嵌め込み部材90の挿入溝76に挿入され、例えば冷やし嵌め、又は焼き嵌めで挿入溝76に固定されてよい。嵌め込み部材90の挿入溝76での流路管75の固定と、電磁積層鋼板の鍵溝47aでの嵌め込み部材90の固定とはどちらが先であってもよく、同時であってもよい。   The flow channel pipe 75 is inserted into the insertion groove 76 of the fitting member 90, and may be fixed to the insertion groove 76 by, for example, cold fitting or shrink fitting. Either the fixing of the flow path pipe 75 in the insertion groove 76 of the fitting member 90 or the fixing of the fitting member 90 in the key groove 47a of the electromagnetic laminated steel sheet may be either first or simultaneously.

冷やし嵌めでは、ドライアイスや液体窒素等の冷媒で流路管75を冷却し、縮ませたうえで、流路管75よりも高温(例えば室温)の嵌め込み部材90の挿入溝76に流路管75を挿入する。その後、流路管75の温度が室温に戻ると、流路管75が膨らみ、流路管75の外壁が断面矩形状の挿入溝193の互いに対向する内壁(側壁)で締め付けられる。   In the cold fitting, the flow path pipe 75 is cooled and contracted with a refrigerant such as dry ice or liquid nitrogen, and then the flow path pipe is inserted into the insertion groove 76 of the fitting member 90 having a temperature higher than that of the flow path pipe 75 (for example, room temperature). 75 is inserted. Thereafter, when the temperature of the flow channel pipe 75 returns to room temperature, the flow channel tube 75 expands, and the outer wall of the flow channel tube 75 is tightened by the mutually opposing inner walls (side walls) of the insertion groove 193 having a rectangular cross section.

焼き嵌めでは、嵌め込み部材90を加熱し、嵌め込み部材90の挿入溝76の溝幅を広げたうえで、嵌め込み部材90よりも低温(例えば室温)の流路管75を挿入溝76に挿入する。その後、嵌め込み部材90の温度が室温に戻ると、挿入溝76の溝幅が狭くなり、断面矩形状の挿入溝76の互いに対向する内壁で流路管75の外壁が締め付けられる。   In shrink fitting, the fitting member 90 is heated to widen the groove width of the insertion groove 76 of the fitting member 90, and then the flow path pipe 75 having a temperature lower than that of the fitting member 90 (for example, room temperature) is inserted into the insertion groove 76. Thereafter, when the temperature of the fitting member 90 returns to room temperature, the groove width of the insertion groove 76 becomes narrower, and the outer wall of the flow channel tube 75 is tightened by the inner walls facing each other of the insertion groove 76 having a rectangular cross section.

冷やし嵌め又は焼き嵌めによって挿入溝76の内壁と流路管75の外壁との間の隙間が少なくなり、接触熱抵抗が下がるので、リヤプラテン134の温調効率が良くなる。   The gap between the inner wall of the insertion groove 76 and the outer wall of the flow channel pipe 75 is reduced by the cold fitting or shrink fitting, and the contact thermal resistance is lowered, so that the temperature regulation efficiency of the rear platen 134 is improved.

嵌め込み部材90の挿入溝76の内壁と、流路管75の外壁との間には、熱伝達部材としての金属シート77が介在してよい。金属シート77の硬さは、流路管75の硬さよりも低い(柔らかい)ことが好ましい。   A metal sheet 77 as a heat transfer member may be interposed between the inner wall of the insertion groove 76 of the fitting member 90 and the outer wall of the flow channel pipe 75. The hardness of the metal sheet 77 is preferably lower (softer) than the hardness of the channel tube 75.

冷やし嵌めでは、金属シート77を流路管75の外壁に巻き付け、金属シート77及び流路管75を嵌め込み部材90の挿入溝76に挿入する。冷やし嵌めでは、挿入溝76への挿入前に、流路管75及び金属シート77の少なくともいずれか一方を冷媒で冷却する。   In the cold fitting, the metal sheet 77 is wound around the outer wall of the flow channel tube 75, and the metal sheet 77 and the flow channel tube 75 are inserted into the insertion groove 76 of the fitting member 90. In the cold fitting, before insertion into the insertion groove 76, at least one of the flow path tube 75 and the metal sheet 77 is cooled with a refrigerant.

例えば、挿入溝76への挿入前に流路管75のみを冷媒で冷却する場合、挿入溝76への挿入後に流路管75の温度が室温に戻り、流路管75が膨らみ、挿入溝76の内壁と流路管75の外壁とで金属シート77が挟まれ、薄く変形する。金属シート77の変形は、弾性変形でも塑性変形でもよい。金属シート77は、流路管75よりも柔らかい金属で形成されるので、挿入溝76の内壁と流路管75の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入溝76の内壁と流路管75の外壁との両方に密着する。   For example, when only the flow path tube 75 is cooled with the refrigerant before insertion into the insertion groove 76, the temperature of the flow path pipe 75 returns to room temperature after the insertion into the insertion groove 76, the flow path pipe 75 expands, and the insertion groove 76. The metal sheet 77 is sandwiched between the inner wall and the outer wall of the flow channel pipe 75, and is deformed thinly. The deformation of the metal sheet 77 may be elastic deformation or plastic deformation. Since the metal sheet 77 is formed of a softer metal than the flow path pipe 75, the metal sheet 77 is deformed so as to absorb the variation in the gap between the inner wall of the insertion groove 76 and the outer wall of the flow path pipe 75, and the gap is filled. It is in close contact with both the inner wall of the insertion groove 76 and the outer wall of the channel tube 75.

また、挿入溝76への挿入前に金属シート77のみを冷媒で冷却し、金属シート77の厚さを薄くする場合、挿入溝76への挿入後に金属シート77の温度が室温に戻り、金属シート77の厚さが厚くなり、挿入溝76の内壁と流路管75の外壁とで金属シート77が挟まれる。金属シート77は、挿入溝76の内壁と流路管75の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入溝76の内壁と流路管75の外壁との両方に密着する。   Further, when only the metal sheet 77 is cooled with the refrigerant before insertion into the insertion groove 76 and the thickness of the metal sheet 77 is reduced, the temperature of the metal sheet 77 returns to room temperature after insertion into the insertion groove 76, and the metal sheet 77 becomes thick, and the metal sheet 77 is sandwiched between the inner wall of the insertion groove 76 and the outer wall of the flow channel tube 75. The metal sheet 77 is deformed so as to absorb the variation in the gap between the inner wall of the insertion groove 76 and the outer wall of the flow channel tube 75 to fill the gap, and the inner wall of the insertion groove 76 and the outer wall of the flow channel tube 75 are Adhere to both.

焼き嵌めでは、金属シート77を流路管75の外壁に巻き付け、加熱した嵌め込み部材90の挿入溝76に金属シート77及び流路管75を挿入する。その後、嵌め込み部材90の温度が室温に戻ると、挿入溝76の溝幅が狭くなり、挿入溝76の内壁と流路管75の外壁とで金属シート77が挟まれる。金属シート77は、挿入溝76の内壁と流路管75の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入溝76の内壁と流路管75の外壁との両方に密着する。   In shrink fitting, the metal sheet 77 is wound around the outer wall of the flow channel tube 75 and the metal sheet 77 and the flow channel tube 75 are inserted into the insertion groove 76 of the heated fitting member 90. Thereafter, when the temperature of the fitting member 90 returns to room temperature, the groove width of the insertion groove 76 becomes narrow, and the metal sheet 77 is sandwiched between the inner wall of the insertion groove 76 and the outer wall of the flow channel tube 75. The metal sheet 77 is deformed so as to absorb the variation in the gap between the inner wall of the insertion groove 76 and the outer wall of the flow channel tube 75 to fill the gap, and the inner wall of the insertion groove 76 and the outer wall of the flow channel tube 75 are Adhere to both.

このように、冷やし嵌め、焼き嵌めのいずれでも、金属シート77は、挿入溝76の内壁と流路管75の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入溝76の内壁と流路管75の外壁との両方に密着する。よって、接触熱抵抗がさらに下がり、リヤプラテン134の温調効率がさらに良くなる。また、上記隙間のばらつきを吸収するとき、柔らかい金属シート77が選択的に変形し、硬い流路管75の局所的な変形が抑えられるので、流路管75の損傷が低減される。   Thus, in both cold fitting and shrink fitting, the metal sheet 77 is deformed so as to absorb the variation in the gap between the inner wall of the insertion groove 76 and the outer wall of the flow channel pipe 75, and the gap is filled and inserted. The groove 76 is in close contact with both the inner wall of the groove 76 and the outer wall of the flow channel pipe 75. Therefore, the contact thermal resistance is further lowered, and the temperature regulation efficiency of the rear platen 134 is further improved. Further, when absorbing the gap variation, the soft metal sheet 77 is selectively deformed and local deformation of the hard flow path tube 75 is suppressed, so that damage to the flow path tube 75 is reduced.

尚、本実施例の熱伝達部材は、金属で形成されるが、空気よりも高い熱伝導率を有していればよく、樹脂で形成されてもよい。また、熱伝達部材は、シート状であるが、リング状であってもよい。   In addition, although the heat transfer member of a present Example is formed with a metal, it should just have heat conductivity higher than air, and may be formed with resin. Further, the heat transfer member has a sheet shape, but may have a ring shape.

尚、本実施例の流路管75は、冷やし嵌め、又は焼き嵌めで挿入溝76に固定されるが、その固定方法は、冷やし嵌め、焼き嵌めに限定されない。例えば、挿入溝76に流路管75を挿入しておき、挿入溝76の内壁と流路管75の外壁との間の隙間に加熱した溶融樹脂を流し込み、溶融樹脂を冷却固化する方法等がある。この場合、挿入溝76の内壁と、流路管75の外壁との間に、熱伝達部材としての樹脂層が介在する。樹脂層の硬さは、流路管75の硬さよりも低くなる。   In addition, although the flow path pipe | tube 75 of a present Example is fixed to the insertion groove 76 by cold fitting or shrink fitting, the fixing method is not limited to cold fitting and shrink fitting. For example, there is a method in which the flow path pipe 75 is inserted into the insertion groove 76, the heated molten resin is poured into the gap between the inner wall of the insertion groove 76 and the outer wall of the flow path pipe 75, and the molten resin is cooled and solidified. is there. In this case, a resin layer as a heat transfer member is interposed between the inner wall of the insertion groove 76 and the outer wall of the flow channel pipe 75. The hardness of the resin layer is lower than the hardness of the channel tube 75.

尚、本実施例では、挿入溝76の内壁と、流路管75の外壁との間に熱伝達部材が介在するが、熱伝達部材がなくてもよい。つまり、挿入溝76の内壁と、流路管75の外壁とが冷やし嵌め又は焼き嵌めによって直接密着していてもよい。   In this embodiment, the heat transfer member is interposed between the inner wall of the insertion groove 76 and the outer wall of the flow channel pipe 75, but the heat transfer member may not be provided. That is, the inner wall of the insertion groove 76 and the outer wall of the flow channel pipe 75 may be in direct contact with each other by cold fitting or shrink fitting.

図18は、本発明のさらに別の一実施例(実施例7)によるリヤプラテン135の要部を示す断面図である。図18において、図15(実施例4)と同一の構成には同一の符号を付して説明を省略する。尚、本実施例の内容は、吸着板22に適用することも可能である。また、本実施例の内容は、図11に示す連結部材94、図12に示す支持部材44b等に適用することも可能である。   FIG. 18 is a cross-sectional view showing a main part of a rear platen 135 according to still another embodiment (Embodiment 7) of the present invention. In FIG. 18, the same components as those in FIG. 15 (Embodiment 4) are denoted by the same reference numerals, and description thereof is omitted. The contents of this embodiment can also be applied to the suction plate 22. Further, the contents of this embodiment can also be applied to the connecting member 94 shown in FIG. 11, the support member 44b shown in FIG.

図18に示すように、補強部材98には、流路管81を挿入する挿入部としての挿入孔82が形成されている。流路管81は、補強部材98を貫通してよい。流路管81は補強部材98毎に1本ずつ設けられるが、複数本ずつ設けられてもよい。尚、リヤプラテン135が複数の補強部材98を有する場合、少なくとも1つの補強部材98の挿入部に流路管81が挿入されていればよい。   As shown in FIG. 18, the reinforcing member 98 is formed with an insertion hole 82 as an insertion portion into which the flow channel pipe 81 is inserted. The flow channel pipe 81 may penetrate the reinforcing member 98. One flow path pipe 81 is provided for each reinforcing member 98, but a plurality of flow path pipes 81 may be provided. In the case where the rear platen 135 has a plurality of reinforcing members 98, the flow path pipe 81 may be inserted into the insertion portion of at least one reinforcing member 98.

流路管81は、例えば円筒管であって、温調流体の流路を内部に有する。温調流体が流路管81の内部を流れ、温調流体が補強部材98と直接接触しないので、補強部材98の腐食を防止できる。   The flow path pipe 81 is, for example, a cylindrical pipe, and has a temperature control fluid flow path therein. Since the temperature control fluid flows through the flow path pipe 81 and the temperature control fluid does not directly contact the reinforcing member 98, corrosion of the reinforcing member 98 can be prevented.

温調流体は、リヤプラテン135と熱交換し、リヤプラテン135を温調する。温調流体は、冷却水や空気などの冷媒であってよい。冷媒は、リヤプラテン135を冷却することで、電磁石49のコイル48の過熱を抑制する。尚、温調流体は、温水などの熱媒であってもよい。   The temperature control fluid exchanges heat with the rear platen 135 to control the temperature of the rear platen 135. The temperature control fluid may be a coolant such as cooling water or air. The refrigerant cools the rear platen 135 to suppress overheating of the coil 48 of the electromagnet 49. The temperature control fluid may be a heat medium such as warm water.

流路管81は、補強部材98の挿入孔82に挿入され、例えば冷やし嵌め、又は焼き嵌めで挿入孔82に固定されてよい。補強部材98の挿入孔82での流路管81の固定と、電磁積層鋼板に対する補強部材98の固定とはどちらが先であってもよい。   The channel pipe 81 is inserted into the insertion hole 82 of the reinforcing member 98 and may be fixed to the insertion hole 82 by, for example, cold fitting or shrink fitting. Either the fixing of the flow path pipe 81 in the insertion hole 82 of the reinforcing member 98 or the fixing of the reinforcing member 98 to the electromagnetic laminated steel plate may be first.

冷やし嵌めでは、ドライアイスや液体窒素等の冷媒で流路管81を冷却し、流路管81の外径を小さくしたうえで、流路管81よりも高温(例えば室温)の補強部材98の挿入孔82に流路管81を挿入する。その後、流路管81の温度が室温に戻ると、流路管81が膨らみ、流路管81の外壁が挿入孔82の内壁で締め付けられる。   In the cold fitting, the flow path pipe 81 is cooled with a refrigerant such as dry ice or liquid nitrogen to reduce the outer diameter of the flow path pipe 81, and the reinforcing member 98 having a higher temperature (for example, room temperature) than the flow path pipe 81 is used. The channel pipe 81 is inserted into the insertion hole 82. Thereafter, when the temperature of the channel pipe 81 returns to room temperature, the channel pipe 81 expands, and the outer wall of the channel pipe 81 is fastened by the inner wall of the insertion hole 82.

焼き嵌めでは、補強部材98を加熱し、補強部材98の挿入孔82の直径を大きくしたうえで、補強部材98よりも低温(例えば室温)の流路管81を挿入孔82に挿入する。その後、補強部材98の温度が室温に戻ると、挿入孔82の直径が縮み、挿入孔82の内壁で流路管81の外壁が締め付けられる。   In shrink fitting, the reinforcing member 98 is heated to increase the diameter of the insertion hole 82 of the reinforcing member 98, and the flow path pipe 81 having a temperature lower than that of the reinforcing member 98 (for example, room temperature) is inserted into the insertion hole 82. Thereafter, when the temperature of the reinforcing member 98 returns to room temperature, the diameter of the insertion hole 82 is reduced, and the outer wall of the flow path pipe 81 is tightened by the inner wall of the insertion hole 82.

冷やし嵌め又は焼き嵌めによって挿入孔82の内壁と流路管81の外壁との間の隙間が少なくなり、接触熱抵抗が下がるので、リヤプラテン135の温調効率が良くなる。流路管81の外壁が冷やし嵌め又は焼き嵌めによって均一に締め付けられるように、流路管81は円筒管で構成され、挿入孔82は円状の断面形状を有してよい。   The gap between the inner wall of the insertion hole 82 and the outer wall of the flow channel pipe 81 is reduced by the cold fitting or shrink fitting, and the contact thermal resistance is lowered, so that the temperature regulation efficiency of the rear platen 135 is improved. The channel tube 81 may be formed of a cylindrical tube and the insertion hole 82 may have a circular cross-sectional shape so that the outer wall of the channel tube 81 is uniformly tightened by cold fitting or shrink fitting.

補強部材98の挿入孔82の内壁と、流路管81の外壁との間には、熱伝達部材としての金属シート83が介在してよい。金属シート83の硬さは、流路管81の硬さよりも低い(柔らかい)ことが好ましい。   A metal sheet 83 as a heat transfer member may be interposed between the inner wall of the insertion hole 82 of the reinforcing member 98 and the outer wall of the flow channel pipe 81. The hardness of the metal sheet 83 is preferably lower (softer) than the hardness of the channel tube 81.

冷やし嵌めでは、金属シート83を流路管81の外壁に巻き付け、金属シート83及び流路管81を補強部材98の挿入孔82に挿入する。冷やし嵌めでは、挿入孔82への挿入前に、流路管81及び金属シート83の少なくともいずれか一方を冷媒で冷却する。   In the cold fitting, the metal sheet 83 is wound around the outer wall of the flow path pipe 81, and the metal sheet 83 and the flow path pipe 81 are inserted into the insertion hole 82 of the reinforcing member 98. In the cold fitting, before insertion into the insertion hole 82, at least one of the channel tube 81 and the metal sheet 83 is cooled with a refrigerant.

例えば、挿入孔82への挿入前に流路管81のみを冷媒で冷却する場合、挿入孔82への挿入後に流路管81の温度が室温に戻り、流路管81が膨らみ、挿入孔82の内壁と流路管81の外壁とで金属シート83が挟まれ、薄く変形する。金属シート83の変形は、弾性変形でも塑性変形でもよい。金属シート83は、流路管81よりも柔らかい金属で形成されるので、挿入孔82の内壁と流路管81の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入孔82の内壁と流路管81の外壁との両方に密着する。   For example, when only the flow path tube 81 is cooled with the refrigerant before insertion into the insertion hole 82, the temperature of the flow path pipe 81 returns to room temperature after insertion into the insertion hole 82, the flow path pipe 81 expands, and the insertion hole 82. The metal sheet 83 is sandwiched between the inner wall and the outer wall of the flow channel tube 81, and deforms thinly. The deformation of the metal sheet 83 may be elastic deformation or plastic deformation. Since the metal sheet 83 is formed of a softer metal than the flow path pipe 81, the metal sheet 83 is deformed so as to absorb the variation in the gap between the inner wall of the insertion hole 82 and the outer wall of the flow path pipe 81, and the gap is filled. It is in close contact with both the inner wall of the insertion hole 82 and the outer wall of the channel tube 81.

また、挿入孔82への挿入前に金属シート83のみを冷媒で冷却し、金属シート83の厚さを薄くする場合、挿入孔82への挿入後に金属シート83の温度が室温に戻り、金属シート83の厚さが厚くなり、挿入孔82の内壁と流路管81の外壁とで金属シート83が挟まれる。金属シート83は、挿入孔82の内壁と流路管81の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入孔82の内壁と流路管81の外壁との両方に密着する。   In addition, when only the metal sheet 83 is cooled with a refrigerant before insertion into the insertion hole 82 and the thickness of the metal sheet 83 is reduced, the temperature of the metal sheet 83 returns to room temperature after insertion into the insertion hole 82, The thickness of 83 increases, and the metal sheet 83 is sandwiched between the inner wall of the insertion hole 82 and the outer wall of the flow channel tube 81. The metal sheet 83 is deformed so as to absorb the variation in the gap between the inner wall of the insertion hole 82 and the outer wall of the flow path pipe 81 to fill the gap, and the metal sheet 83 is formed between the inner wall of the insertion hole 82 and the outer wall of the flow path pipe 81. Adhere to both.

焼き嵌めでは、金属シート83を流路管81の外壁に巻き付け、加熱した補強部材98の挿入孔82に金属シート83及び流路管81を挿入する。その後、補強部材98の温度が室温に戻ると、挿入孔82の直径が縮み、挿入孔82の内壁と流路管81の外壁とで金属シート83が挟まれる。金属シート83は、挿入孔82の内壁と流路管81の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入孔82の内壁と流路管81の外壁との両方に密着する。   In shrink fitting, the metal sheet 83 is wound around the outer wall of the flow path pipe 81, and the metal sheet 83 and the flow path pipe 81 are inserted into the insertion hole 82 of the heated reinforcing member 98. Thereafter, when the temperature of the reinforcing member 98 returns to room temperature, the diameter of the insertion hole 82 is reduced, and the metal sheet 83 is sandwiched between the inner wall of the insertion hole 82 and the outer wall of the flow channel pipe 81. The metal sheet 83 is deformed so as to absorb the variation in the gap between the inner wall of the insertion hole 82 and the outer wall of the flow channel pipe 81 to fill the gap. Adhere to both.

このように、冷やし嵌め、焼き嵌めのいずれでも、金属シート83は、挿入孔82の内壁と流路管81の外壁との間の隙間のばらつきを吸収するように変形して隙間を埋め、挿入孔82の内壁と流路管81の外壁との両方に密着する。よって、接触熱抵抗がさらに下がり、リヤプラテン135の温調効率がさらに良くなる。また、上記隙間のばらつきを吸収するとき、柔らかい金属シート83が選択的に変形し、硬い流路管81の局所的な変形が抑えられるので、流路管81の損傷が低減される。   Thus, in both cold fitting and shrink fitting, the metal sheet 83 is deformed so as to absorb the variation in the gap between the inner wall of the insertion hole 82 and the outer wall of the flow channel pipe 81, and the gap is filled and inserted. It is in close contact with both the inner wall of the hole 82 and the outer wall of the channel tube 81. Therefore, the contact thermal resistance is further lowered, and the temperature regulation efficiency of the rear platen 135 is further improved. Further, when absorbing the gap variation, the soft metal sheet 83 is selectively deformed and local deformation of the hard flow channel pipe 81 is suppressed, so that damage to the flow channel pipe 81 is reduced.

尚、本実施例の熱伝達部材は、金属で形成されるが、空気よりも高い熱伝導率を有していればよく、樹脂で形成されてもよい。また、熱伝達部材は、シート状であるが、リング状であってもよい。   In addition, although the heat transfer member of a present Example is formed with a metal, it should just have heat conductivity higher than air, and may be formed with resin. Further, the heat transfer member has a sheet shape, but may have a ring shape.

尚、本実施例の流路管81は、冷やし嵌め、又は焼き嵌めで挿入孔82に固定されるが、その固定方法は、冷やし嵌め、焼き嵌めに限定されない。例えば、挿入孔82に流路管81を挿入しておき、挿入孔82の内壁と流路管81の外壁との間の隙間に加熱した溶融樹脂を流し込み、溶融樹脂を冷却固化する方法等がある。この場合、挿入孔82の内壁と、流路管81の外壁との間に、熱伝達部材としての樹脂層が介在する。樹脂層の硬さは、流路管81の硬さよりも低くなる。   In addition, although the flow path pipe 81 of a present Example is fixed to the insertion hole 82 by cold fitting or shrink fitting, the fixing method is not limited to cold fitting and shrink fitting. For example, there is a method in which the flow path pipe 81 is inserted into the insertion hole 82, the heated molten resin is poured into the gap between the inner wall of the insertion hole 82 and the outer wall of the flow path pipe 81, and the molten resin is cooled and solidified. is there. In this case, a resin layer as a heat transfer member is interposed between the inner wall of the insertion hole 82 and the outer wall of the flow channel pipe 81. The hardness of the resin layer is lower than the hardness of the channel tube 81.

尚、本実施例では、挿入孔82の内壁と、流路管81の外壁との間に熱伝達部材が介在するが、熱伝達部材がなくてもよい。つまり、挿入孔82の内壁と、流路管81の外壁とが冷やし嵌め又は焼き嵌めによって直接密着していてもよい。   In this embodiment, the heat transfer member is interposed between the inner wall of the insertion hole 82 and the outer wall of the flow channel tube 81, but the heat transfer member may not be provided. That is, the inner wall of the insertion hole 82 and the outer wall of the flow channel pipe 81 may be in direct contact with each other by cold fitting or shrink fitting.

尚、本実施例の補強部材98には、流路管81を挿入する挿入部としての挿入孔82が形成されているが、挿入孔の代わりに、図17の実施例6と同様に挿入溝が形成されてよい。   The reinforcing member 98 of this embodiment is formed with an insertion hole 82 as an insertion portion for inserting the flow channel tube 81. Instead of the insertion hole, the insertion groove 82 is the same as in the embodiment 6 of FIG. May be formed.

尚、上述した実施例においては、特許請求の範囲における「第1の固定部材」は、固定プラテン11に対応し、特許請求の範囲における「第1の可動部材」は、可動プラテン12に対応する。また、特許請求の範囲における「第2の固定部材」は、リヤプラテン13に対応し、特許請求の範囲における「第2の可動部材」は、吸着板22に対応する。但し、変形例として、吸着板22側に電磁石49を設け、リヤプラテン13側に吸着部を設けてもよく、この変形例の場合、「第2の固定部材」は、吸着板22に対応し、特許請求の範囲における「第2の可動部材」は、リヤプラテン13に対応する。また、上述した実施例においては、特許請求の範囲における「溝」は、鍵溝47a及び/又は鍵溝22aに対応する。   In the embodiment described above, the “first fixed member” in the claims corresponds to the fixed platen 11, and the “first movable member” in the claims corresponds to the movable platen 12. . The “second fixing member” in the claims corresponds to the rear platen 13, and the “second movable member” in the claims corresponds to the suction plate 22. However, as a modification, the electromagnet 49 may be provided on the suction plate 22 side and the suction portion may be provided on the rear platen 13 side. In this modification, the “second fixing member” corresponds to the suction plate 22, The “second movable member” in the claims corresponds to the rear platen 13. In the above-described embodiments, the “groove” in the claims corresponds to the key groove 47a and / or the key groove 22a.

以上、本発明の好ましい実施例について詳説したが、本発明は、上述した実施例に制限されることはなく、本発明の範囲を逸脱することなく、上述した実施例に種々の変形及び置換を加えることができる。   The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the present invention. Can be added.

例えば、上述の実施例では、リヤプラテン13,130,131,133,134及び吸着板22は、底側の方が入口側よりも幅が広い鍵溝47a及び鍵溝22aが形成されているが、かかる鍵溝47a及び鍵溝22aに代えて、円形断面以外の断面形状の溝が形成されてもよい。この場合も、溝に嵌め込まれる嵌め込み部材90は、リヤプラテン13,130,131,133,134及び吸着板22の回転方向の変位を拘束することができ、位置決め機能を果たすことができる。   For example, in the above-described embodiment, the rear platens 13, 130, 131, 133, and 134 and the suction plate 22 are formed with the key groove 47a and the key groove 22a that are wider on the bottom side than on the inlet side. Instead of the key groove 47a and the key groove 22a, grooves having a cross-sectional shape other than a circular cross section may be formed. Also in this case, the fitting member 90 fitted into the groove can restrain the displacement of the rear platens 13, 130, 131, 133, and 134 and the suction plate 22 in the rotational direction, and can perform a positioning function.

また、上述の実施例では、リヤプラテン13,130,131,133,134及び吸着板22は、電磁積層鋼板により構成されているが、鍵溝47a又は鍵溝22aが形成されない構成の場合は、鋳物の一体構造で構成されてもよい。例えば、図12に示す適用例を単独で使用する場合は、リヤプラテン13は鋳物の一体構造で構成されてもよい。また、図12に示す適用例を採用しない場合は、吸着板22は、鋳物の一体構造で構成されてもよい。   In the above-described embodiment, the rear platens 13, 130, 131, 133, and 134 and the suction plate 22 are made of electromagnetic laminated steel plates. However, in the case where the keyway 47a or the keyway 22a is not formed, It may be constituted by the integral structure. For example, when the application example shown in FIG. 12 is used alone, the rear platen 13 may be formed of an integral structure of a casting. Moreover, when the application example shown in FIG. 12 is not adopted, the suction plate 22 may be configured as an integral structure of a casting.

尚、上述の実施例では、2列の鍵溝47aに対応して2本の嵌め込み部材90が設けられているが、鍵溝47a及び嵌め込み部材90の数は、任意である。   In the above-described embodiment, the two fitting members 90 are provided corresponding to the two rows of key grooves 47a, but the number of the key grooves 47a and the fitting members 90 is arbitrary.

以上の説明に関し、更に以下の項を開示する。   Regarding the above description, the following items are further disclosed.

(付記1)
固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層してなる積層鋼板と、前記積層鋼板を補強する補強部材とを有し、
前記補強部材は、温調流体の流路を有することを特徴とする、射出成形機。
(Appendix 1)
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism has a laminated steel plate formed by laminating a plurality of steel plates and a reinforcing member that reinforces the laminated steel plates. And
An injection molding machine according to claim 1, wherein the reinforcing member has a flow path of a temperature control fluid.

(付記2)
固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層してなる積層鋼板と、前記積層鋼板を補強する補強部材とを有し、
前記補強部材に形成される挿入部に、温調流体を流す流路管が挿入され、前記流路管が冷やし嵌め又は焼き嵌めで前記挿入部に固定されることを特徴とする、射出成形機。
(Appendix 2)
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism has a laminated steel plate formed by laminating a plurality of steel plates and a reinforcing member that reinforces the laminated steel plates. And
An injection molding machine, wherein a flow path pipe for flowing a temperature control fluid is inserted into an insertion part formed in the reinforcing member, and the flow path pipe is fixed to the insertion part by cold fitting or shrink fitting. .

(付記3)
前記挿入部の内壁と、前記流路管の外壁との間に、熱伝達部材が介在する、付記2に記載の射出成形機。
(Appendix 3)
The injection molding machine according to appendix 2, wherein a heat transfer member is interposed between the inner wall of the insertion portion and the outer wall of the flow channel tube.

(付記4)
固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層してなる積層鋼板と、前記積層鋼板を補強する補強部材とを有し、
前記補強部材に形成される挿入部に、温調流体を流す流路管が挿入されており、前記挿入部の内壁と、前記流路管の外壁との間に、熱伝達部材が介在することを特徴とする、射出成形機。
(Appendix 4)
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism has a laminated steel plate formed by laminating a plurality of steel plates and a reinforcing member that reinforces the laminated steel plates. And
A flow channel pipe for flowing a temperature control fluid is inserted into the insertion portion formed in the reinforcing member, and a heat transfer member is interposed between the inner wall of the insertion portion and the outer wall of the flow channel tube. Features an injection molding machine.

(付記5)
前記熱伝達部材の硬さは、前記流路管の硬さよりも低い、付記2〜4のうちのいずれか1つに記載の射出成形機。
(Appendix 5)
The hardness of the said heat transfer member is an injection molding machine as described in any one of appendixes 2-4 lower than the hardness of the said flow-path pipe.

Fr フレーム
Gd ガイド
10 型締装置
11 固定プラテン
12 可動プラテン
13,130 リヤプラテン
14 タイバー
15 固定金型
16 可動金型
17 射出装置
18 射出ノズル
19 金型装置
22 吸着板
22a 鍵溝
28 リニアモータ
29 固定子
31 可動子
33 磁極歯
34 コア
35 コイル
37 電磁石ユニット
39 センターロッド
41 角穴
43 ねじ
44 型厚調整機構
44a ギア
44b 支持部材
44c 型厚調整回転部
45,45A,45B 溝
46,46A,46B コア
47 ヨーク
47a 鍵溝
47b 係止部
48 コイル
49 電磁石
51 吸着部
55 荷重検出器
60 制御部
61 型開閉処理部
62 型締処理部
71 流路管
72 挿入孔
73 熱伝達部材(金属シート)
75 流路管
76 流路管
77 挿入溝
78 熱伝達部材(金属シート)
81 流路管
82 挿入孔
83 熱伝達部材(金属シート)
90 嵌め込み部材
91 流路孔
92 抜け防止板材
93 熱伝達部材(金属シート)
94 連結部材
95 流路溝
97 蓋部材
98 補強部材
99 流路孔
Fr frame Gd guide 10 mold clamping device 11 fixed platen 12 movable platen 13, 130 rear platen 14 tie bar 15 fixed mold 16 movable mold 17 injection device 18 injection nozzle 19 mold device 22 suction plate 22a keyway 28 linear motor 29 stator 31 Movable element 33 Magnetic pole teeth 34 Core 35 Coil 37 Electromagnet unit 39 Center rod 41 Square hole 43 Screw 44 Mold thickness adjustment mechanism 44a Gear 44b Support member 44c Mold thickness adjustment rotating part 45, 45A, 45B Groove 46, 46A, 46B Core 47 Yoke 47a Keyway 47b Locking portion 48 Coil 49 Electromagnet 51 Adsorption portion 55 Load detector 60 Control portion 61 Mold opening / closing processing portion 62 Mold clamping processing portion 71 Channel tube 72 Insertion hole 73 Heat transfer member (metal sheet)
75 Channel pipe 76 Channel pipe 77 Insertion groove 78 Heat transfer member (metal sheet)
81 Channel tube 82 Insertion hole 83 Heat transfer member (metal sheet)
90 fitting member 91 flow path hole 92 slip-off prevention plate material 93 heat transfer member (metal sheet)
94 Connecting member 95 Channel groove 97 Lid member 98 Reinforcing member 99 Channel hole

Claims (15)

固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層すると共に所定方向に延在する溝が形成された積層鋼板と、前記積層鋼板の溝内に嵌め込まれる嵌め込み部材とを有し、
前記溝は、前記溝内に嵌め込まれる嵌め込み部材によって前記積層鋼板の回転運動を規制する断面形状を有し、
前記嵌め込み部材は、タイバーに固定され、
前記積層鋼板は、前記嵌め込み部材を介して前記タイバーに連結される、射出成形機。
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism is a laminated steel plate in which a plurality of steel plates are laminated and a groove extending in a predetermined direction is formed; Having a fitting member fitted into the groove of the laminated steel sheet,
The groove has a cross-sectional shape that restricts the rotational movement of the laminated steel sheet by a fitting member fitted into the groove,
The fitting member is fixed to the tie bar;
The laminated steel plate is an injection molding machine connected to the tie bar via the fitting member.
複数の前記溝に対応する複数の前記嵌め込み部材を連結する連結部材を有し、
複数の前記嵌め込み部材は、前記連結部材を介して前記タイバーに固定される、請求項1に記載の射出成形機。
A connecting member that connects the plurality of fitting members corresponding to the plurality of grooves;
The injection molding machine according to claim 1, wherein the plurality of fitting members are fixed to the tie bar via the connecting member.
固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層すると共に所定方向に延在する溝が形成された積層鋼板と、前記積層鋼板の溝内に嵌め込まれる嵌め込み部材とを有し、
前記溝は、前記溝内に嵌め込まれる嵌め込み部材によって前記積層鋼板の回転運動を規制する断面形状を有し、
前記積層鋼板は、前記嵌め込み部材を介して型厚調整機構を構成する部材に連結される、射出成形機。
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism is a laminated steel plate in which a plurality of steel plates are laminated and a groove extending in a predetermined direction is formed; Having a fitting member fitted into the groove of the laminated steel sheet,
The groove has a cross-sectional shape that restricts the rotational movement of the laminated steel sheet by a fitting member fitted into the groove,
The said laminated steel plate is an injection molding machine connected with the member which comprises a mold thickness adjustment mechanism through the said fitting member.
固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層すると共に所定方向に延在する溝が形成された積層鋼板と、前記積層鋼板の溝内に嵌め込まれる嵌め込み部材とを有し、
前記溝は、前記溝内に嵌め込まれる嵌め込み部材によって前記積層鋼板の回転運動を規制する断面形状を有し、
前記積層鋼板における前記溝は、前記積層鋼板の端面で開口し、
前記積層鋼板の端面に設けられ、前記開口を塞ぐ板材を備える、射出成形機。
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism is a laminated steel plate in which a plurality of steel plates are laminated and a groove extending in a predetermined direction is formed; Having a fitting member fitted into the groove of the laminated steel sheet,
The groove has a cross-sectional shape that restricts the rotational movement of the laminated steel sheet by a fitting member fitted into the groove,
The groove in the laminated steel plate opens at an end surface of the laminated steel plate,
An injection molding machine comprising a plate material provided on an end surface of the laminated steel plate and closing the opening.
固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層すると共に所定方向に延在する溝が形成された積層鋼板と、前記積層鋼板の溝内に嵌め込まれる嵌め込み部材とを有し、
前記溝は、前記溝内に嵌め込まれる嵌め込み部材によって前記積層鋼板の回転運動を規制する断面形状を有し、
前記嵌め込み部材は、温調流体の流路を有する、射出成形機。
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism is a laminated steel plate in which a plurality of steel plates are laminated and a groove extending in a predetermined direction is formed; Having a fitting member fitted into the groove of the laminated steel sheet,
The groove has a cross-sectional shape that restricts the rotational movement of the laminated steel sheet by a fitting member fitted into the groove,
The fitting member is an injection molding machine having a flow channel for temperature control fluid.
前記嵌め込み部材の外壁と、前記積層鋼板の前記溝の内壁との間に、熱伝達部材が介在する、請求項5に記載の射出成形機。   The injection molding machine according to claim 5, wherein a heat transfer member is interposed between an outer wall of the fitting member and an inner wall of the groove of the laminated steel plate. 前記熱伝達部材の硬さは、前記嵌め込み部材の硬さよりも低い、請求項6に記載の射出成形機。   The hardness of the said heat transfer member is an injection molding machine of Claim 6 lower than the hardness of the said fitting member. 固定金型が取り付けられる第1の固定部材と、
前記第1の固定部材と対向して配設される第2の固定部材と、
可動金型が取り付けられる第1の可動部材と、
前記第1の可動部材と連結されて前記第1の可動部材と共に移動する第2の可動部材と、を備え、
前記第2の固定部材と前記第2の可動部材は、電磁石による吸着力で型締力を発生させる型締力発生機構を構成し、
前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の鋼板を積層すると共に所定方向に延在する溝が形成された積層鋼板と、前記積層鋼板の溝内に嵌め込まれる嵌め込み部材とを有し、
前記溝は、前記溝内に嵌め込まれる嵌め込み部材によって前記積層鋼板の回転運動を規制する断面形状を有し、
前記嵌め込み部材に形成される挿入部に、温調流体を流す流路管が挿入され、前記流路管が前記挿入部に固定される、射出成形機。
A first fixing member to which a fixed mold is attached;
A second fixing member disposed opposite to the first fixing member;
A first movable member to which a movable mold is attached;
A second movable member connected to the first movable member and moving together with the first movable member,
The second fixed member and the second movable member constitute a mold clamping force generation mechanism that generates a mold clamping force by an attractive force of an electromagnet,
At least one of the second fixed member and the second movable member constituting the mold clamping force generation mechanism is a laminated steel plate in which a plurality of steel plates are laminated and a groove extending in a predetermined direction is formed; Having a fitting member fitted into the groove of the laminated steel sheet,
The groove has a cross-sectional shape that restricts the rotational movement of the laminated steel sheet by a fitting member fitted into the groove,
An injection molding machine, wherein a flow channel pipe for flowing a temperature adjusting fluid is inserted into an insertion portion formed in the fitting member, and the flow channel tube is fixed to the insertion portion.
前記挿入部の内壁と、前記流路管の外壁との間に、熱伝達部材が介在する、請求項8に記載の射出成形機。   The injection molding machine according to claim 8, wherein a heat transfer member is interposed between an inner wall of the insertion portion and an outer wall of the flow channel tube. 前記熱伝達部材の硬さは、前記流路管の硬さよりも低い、請求項9に記載の射出成形機。   The injection molding machine according to claim 9, wherein the hardness of the heat transfer member is lower than the hardness of the flow channel tube. 前記溝は、前記積層鋼板の積層方向に延在する、請求項1〜10のいずれか1項に記載の射出成形機。   The said groove | channel is an injection molding machine of any one of Claims 1-10 extended in the lamination direction of the said laminated steel plate. 前記型締力発生機構を構成する前記第2の固定部材及び前記第2の可動部材の少なくとも一方は、複数の前記積層鋼板で構成される、請求項1〜11のいずれか1項に記載の射出成形機。   The at least one of the 2nd fixed member and the 2nd movable member which constitutes the mold clamping force generation mechanism is constituted with a plurality of the above-mentioned laminated steel plates according to any one of claims 1 to 11. Injection molding machine. 複数の前記積層鋼板は、前記嵌め込み部材で一体化される、請求項12に記載の射出成形機。   The injection molding machine according to claim 12, wherein the plurality of laminated steel plates are integrated by the fitting member. 複数の前記積層鋼板は、前記嵌め込み部材を連結することにより一体化される、請求項12又は13に記載の射出成形機。   The injection molding machine according to claim 12 or 13, wherein the plurality of laminated steel plates are integrated by connecting the fitting members. 前記溝は、底側が入口側よりも幅が広い断面形状を有する、請求項1〜14のうちのいずれか1項に記載の射出成形機。
The injection molding machine according to any one of claims 1 to 14, wherein the groove has a cross-sectional shape whose bottom side is wider than the inlet side.
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