JP2009142897A - Method for separating upper mold and lower mold from match plate - Google Patents

Method for separating upper mold and lower mold from match plate Download PDF

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JP2009142897A
JP2009142897A JP2009023699A JP2009023699A JP2009142897A JP 2009142897 A JP2009142897 A JP 2009142897A JP 2009023699 A JP2009023699 A JP 2009023699A JP 2009023699 A JP2009023699 A JP 2009023699A JP 2009142897 A JP2009142897 A JP 2009142897A
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match plate
mold
hydraulic cylinders
lower casting
casting
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JP4817081B2 (en
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Minoru Hirata
実 平田
Yutaka Hatano
豊 波多野
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Sintokogio Ltd
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Sintokogio Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for separating an upper mold and a lower mold from a match plate in which the upper and lower molds formed respectively in an upper and a lower casting flasks are separated from the match plate without deforming or breaking the molds. <P>SOLUTION: In the invented method, the upper mold A and the lower B formed in the upper and the lower casting flasks 2 and 4 respectively are separated from the match plate 7 by means of two first upward hydraulic cylinders 5 of which the tips of the piston rods 1 are fitted respectively to the right and left sides of the upper casting foundry flask and four second upward hydraulic cylinders 8 which are fitted respectively to the four (front, back, right and left) sides of the lower casting flask and can press the match plate 7 in a direction of separating the match plate 7 from the lower casting flask by the extending motion of piston rods 6. The upper mold and the lower mold formed respectively in the upper and the lower casting flasks are separated from the match plate 7 at a state being kept almost stationary, by moving the upper mold upward and the lower mold downward almost simultaneously from a stationary state, while keeping the levelness of the molds. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description


本発明は、上・下鋳型のマッチプレートからの分離方法に係り、より詳しくは、マッチプレート、上・下鋳枠および上・下スクイズプレートを用いて上・下鋳枠内にそれぞれ造型した上・下鋳型を、マッチプレートから分離するのに好適な方法に関する。
The present invention relates to a method for separating an upper / lower mold from a match plate, and more specifically, a mold formed in an upper / lower casting frame using a match plate, upper / lower casting frames and upper / lower squeeze plates. -It relates to a method suitable for separating the lower mold from the match plate.


従来、この種の分離方法の一つとして、上鋳型内在の上鋳枠を固定するとともに、下鋳型内在の下鋳枠とマッチプレートを一体として一緒に下降させて、まず上鋳型内在の上鋳枠をマッチプレートから分離し、その後、下鋳型内在の下鋳枠とマッチプレートの下降の途中で、マッチプレートだけを停止させて下鋳型を下鋳枠と一緒にマッチプレートから分離するようにしたものがある（特許文献１）。
Conventionally, as one of the separation methods of this kind, while fixing the upper casting frame in the upper mold and lowering the lower casting frame and the match plate in the lower mold together, The frame is separated from the match plate, and then the lower mold is separated from the match plate together with the lower cast frame by stopping only the match plate in the middle of lowering the lower cast frame and the match plate in the lower mold. There is a thing (patent document 1).

特許文献１ 特開平８−１９８３２号公報 Patent Document 1 JP-A-8-19832

しかし、このように構成された従来の上・下鋳型のマッチプレートからの分離方法では、マッチプレートだけを停止させて下鋳型をマッチプレートから分離する際に、分離される下鋳型に大きな衝撃が作用して、その下鋳型は変形したり欠けたりし、その結果、欠陥鋳物を誘発するなどの問題があった。 However, in the conventional separation method of the upper and lower molds from the match plate configured as described above, when the lower mold is separated from the match plate by stopping only the match plate, a large impact is applied to the separated lower mold. The lower mold was deformed or chipped due to the action, and as a result, there was a problem of inducing a defective casting.

本発明は上記の問題を解消するためになされたもので、その目的は、マッチプレート、上・下鋳枠および上・下スクイズプレートを用いて上・下鋳枠内にそれぞれ造型した上・下鋳型を、マッチプレートから分離する際に、鋳型が変形したり、欠けたりすることのない上・下鋳型のマッチプレートからの分離方法を提供することにある。   The present invention has been made to solve the above-described problems, and its purpose is to form upper and lower molds in the upper and lower casting frames using match plates, upper and lower casting frames and upper and lower squeeze plates, respectively. An object of the present invention is to provide a method for separating upper and lower molds from a match plate so that the mold is not deformed or chipped when the mold is separated from the match plate.

上記の目的を達成するために本発明の上・下鋳型のマッチプレートからの分離方法は、マッチプレート、上・下鋳枠および上・下スクイズプレートを用いて上・下鋳枠内にそれぞれ造型した上・下鋳型を、ピストンロッドの先端が上鋳枠の左右両側に装着されかつそのシリンダ本体が下鋳枠の左右両側にそれぞれ装着された２本の上向きの第１油圧シリンダと、下鋳枠の前後左右四側面にそれぞれ装着されピストンロッドの伸長作動によりマッチプレートを下鋳枠から押し離す方向へ押圧可能な４本の上向きの第２油圧シリンダとを用いてマッチプレートから分離する方法であって、マッチプレートがほぼ静止した状態の下に、上・下鋳枠内にそれぞれ造型した上鋳型および下鋳型を、静止状態から平面度を維持しながらほぼ同時に上および下方向へそれぞれ移動させてマッチプレートから分離することを特徴とする。  In order to achieve the above object, the method of separating the upper and lower molds from the match plate according to the present invention uses the match plate, the upper and lower casting frames, and the upper and lower squeeze plates, respectively, to form the molds in the upper and lower casting frames. The upper and lower molds are divided into two upward first hydraulic cylinders with the piston rod tip mounted on both the left and right sides of the upper casting frame and the cylinder body respectively mounted on the left and right sides of the lower casting frame, and the lower casting. A method of separating from the match plate using four upward second hydraulic cylinders mounted on the front, rear, left and right sides of the frame and capable of pressing the match plate away from the lower casting frame by extending the piston rod. Under the condition that the match plate is almost stationary, the upper mold and the lower mold formed in the upper and lower casting frames are moved up and down almost simultaneously while maintaining flatness from the stationary state. And separating from the match plate is moved respectively in the direction.

上記の説明から明らかなように本発明は、マッチプレート、上・下鋳枠および上・下スクイズプレートを用いて上・下鋳枠内にそれぞれ造型した上・下鋳型を、ピストンロッドの先端が前記上鋳枠の左右両側に装着されかつそのシリンダ本体が下鋳枠の左右両側にそれぞれ装着された２本の上向きの第１油圧シリンダと、下鋳枠の前後左右四側面にそれぞれ装着されピストンロッドの伸長作動によりマッチプレートを下鋳枠から押し離す方向へ押圧可能な４本の上向きの第２油圧シリンダとを用いてマッチプレートから分離する方法であって、マッチプレートがほぼ静止した状態の下に、上・下鋳枠内にそれぞれ造型した上鋳型および下鋳型を、静止状態から平面度を維持しながらほぼ同時に上および下方向へそれぞれ移動させてマッチプレートから分離するから、従来のこの種の分離方法のように、分離される鋳型に大きな衝撃が作用してその下鋳型が変形したり欠けたりすることは、起こらないなどの優れた実用的効果を奏する。 As is apparent from the above description, the present invention has the upper and lower molds formed in the upper and lower casting frames using match plates, upper and lower casting frames and upper and lower squeeze plates, respectively, and the tip of the piston rod is Two upward first hydraulic cylinders mounted on the left and right sides of the upper casting frame and cylinder bodies mounted on the left and right sides of the lower casting frame, and pistons mounted on the front, rear, left and right four sides of the lower casting frame, respectively. A method of separating the match plate from the match plate using four upward second hydraulic cylinders that can be pushed in a direction to push the match plate away from the lower casting frame by extending the rod. The upper and lower molds molded in the upper and lower casting frames are moved upward and downward almost simultaneously while maintaining the flatness from the stationary state, respectively. Because it is separated from the mold, it has an excellent practical effect such that it does not happen that a large impact acts on the separated mold and the lower mold is deformed or chipped like this conventional separation method. Play.


本発明の一実施例を示す一部断面正面図である。It is a partial cross section front view which shows one Example of this invention. 図１の作動説明図である。FIG. 2 is an operation explanatory diagram of FIG. 1.

本発明を適用した上・下鋳型のマッチプレートからの分離装置の一実施例について図１および図２に基づき詳細に説明する。本分離装置は、図１に示すように、ピストンロッド１の先端が上鋳枠２の左右両側に装着されかつそのシリンダ本体３が下鋳枠４の左右両側にそれぞれ装着された２本の上向きの第１油圧シリンダ５・５と、下鋳枠４の前後左右四側面にそれぞれ装着されピストンロッド６の伸長作動によりマッチプレート７を下鋳枠４から押し離す方向へ押圧可能な４本の上向きの第２油圧シリンダ８・８と、第１油圧シリンダ５・５におけるピストンロッド１を収縮作動させる側からの排油を第２油圧シリンダ８・８におけるピストンロッド６を伸長作動させる側に誘導可能な油圧回路９と、上鋳枠２の前後左右四側面にそれぞれ装着されて上鋳枠２からマッチプレート７を押し離すように作用しかつ伸縮性を有する弾性機構２７と、で構成してある。 An embodiment of a separating apparatus for upper / lower molds from a match plate to which the present invention is applied will be described in detail with reference to FIGS. As shown in FIG. 1, the separating apparatus includes two upwardly facing piston rods 1 mounted on the left and right sides of the upper casting frame 2 and cylinder bodies 3 mounted on the left and right sides of the lower casting frame 4, respectively. The first hydraulic cylinders 5 and 5 and the four upwards that are mounted on the front, rear, left, and right side surfaces of the lower casting frame 4 and that can push the match plate 7 away from the lower casting frame 4 by extending the piston rod 6. The oil discharged from the second hydraulic cylinders 8 and 8 and the side of the first hydraulic cylinders 5 and 5 for contracting the piston rod 1 can be guided to the side of the second hydraulic cylinders 8 and 8 for extending the piston rod 6. And an elastic mechanism 27 that is attached to each of the front, rear, left, and right side surfaces of the upper casting frame 2 to push the match plate 7 away from the upper casting frame 2 and has elasticity. .

そして、油圧回路９においては、第１油圧シリンダ５におけるピストンロッド１を伸長作動させる側に、配管１０、チェック弁１２および四方口方向切換弁１３を介して油圧ポンプ１４が接続してある。また、第１油圧シリンダ５におけるピストンロッド１を収縮作動させる側は、配管１５、チェック弁１６および四方口方向切換弁１３を介して油圧タンク１７に接続してあり、チェック弁１６のパイロット部は四方口方向切換弁１８を介して油圧ポンプ１４および油圧タンク１７に接続してある。また、第１油圧シリンダ５・５におけるピストンロッド１を収縮作動させる側は、配管１５、配管１９、四方口方向切換弁２０、速度調整回路２１および配管２２を介して第２油圧シリンダ８・８におけるピストンロッド６を伸長作動させる側に接続してある。また、第２油圧シリンダ８・８におけるピストンロッド６を収縮作動させる側およびピストンロッド６を伸長作動させる側は、配管２３、配管２４、速度調整回路２５および四方口方向切換弁２６を介して油圧ポンプ１４および油圧タンク１７に接続してある。 In the hydraulic circuit 9, a hydraulic pump 14 is connected to the side of the first hydraulic cylinder 5 on which the piston rod 1 is extended and operated via a pipe 10, a check valve 12, and a four-way direction switching valve 13. Further, the side of the first hydraulic cylinder 5 on which the piston rod 1 is contracted is connected to the hydraulic tank 17 via the pipe 15, the check valve 16 and the four-way direction switching valve 13, and the pilot portion of the check valve 16 is A hydraulic pump 14 and a hydraulic tank 17 are connected via a four-way port direction switching valve 18. Further, the side of the first hydraulic cylinders 5 and 5 on which the piston rod 1 is contracted is connected to the second hydraulic cylinders 8 and 8 via the pipe 15, the pipe 19, the four-way opening direction switching valve 20, the speed adjustment circuit 21 and the pipe 22. Is connected to the side on which the piston rod 6 is extended. Further, the side of the second hydraulic cylinders 8 and 8 for contracting the piston rod 6 and the side for extending the piston rod 6 are hydraulically connected via a pipe 23, a pipe 24, a speed adjustment circuit 25 and a four-way opening direction switching valve 26. It is connected to a pump 14 and a hydraulic tank 17.

また、弾性機構２７は、上鋳枠２に装着した筒部材２８と、筒部材２８の下端に上下動可能にして挿設しかつ筒部材２８に内装した圧縮コイルばね（図示せず）によって押圧される当接部材２９と、で構成してある。 The elastic mechanism 27 is pressed by a cylindrical member 28 mounted on the upper casting frame 2 and a compression coil spring (not shown) that is inserted in the lower end of the cylindrical member 28 so as to be movable up and down and is built in the cylindrical member 28. The contact member 29 is made up of.


このように構成したものは、図１に示す状態において、上・下鋳枠２・４内にそれぞれ造型した上・下鋳型Ａ・Ｂを、マッチプレート７から分離するには、まず、図２のａに示すように、四方口方向切換弁１３を切り換えて第１油圧シリンダ５・５におけるピストンロッド１・１を伸長作動させる側に、油圧ポンプ１４から吐出される圧油を供給する。
In order to separate the upper and lower molds A and B formed in the upper and lower casting frames 2 and 4 from the match plate 7 in the state shown in FIG. As shown in a, the pressure oil discharged from the hydraulic pump 14 is supplied to the side of the first hydraulic cylinders 5 and 5 where the piston rods 1 and 1 are extended and operated by switching the four-way port direction switching valve 13.

すると、第１油圧シリンダ５・５が伸長作動しかつ弾性機構２７・２７の当接部材２９・２９による押圧力の付加により、上鋳枠２を介して上鋳型Ａがマッチプレート７から分離されると同時に、第１油圧シリンダ５・５の伸長作動に伴い第１油圧シリンダ５・５におけるピストンロッド１・１を収縮作動させる側から排出される油が、四方口方向切換弁２０の切換えにより第２油圧シリンダ８・８におけるピストンロッド６・６を伸長作動させる側に誘導されて第２油圧シリンダ８・８は伸長作動し、この結果、マッチプレート７がほぼ静止した状態の下に、上・下鋳型Ａ・Ｂは、静止状態から平面度を維持しながらほぼ同時に上および下方向へそれぞれ移動してマッチプレート７から分離されることとなる。 Then, the upper mold A is separated from the match plate 7 through the upper casting frame 2 by the first hydraulic cylinders 5 and 5 being extended and the pressing force applied by the contact members 29 and 29 of the elastic mechanisms 27 and 27. At the same time, the oil discharged from the side of the first hydraulic cylinders 5 and 5 that causes the piston rods 1 and 1 to contract by the extension operation of the first hydraulic cylinders 5 and 5 is switched by the four-way opening direction switching valve 20. The second hydraulic cylinders 8 and 8 are extended by being guided to extend the piston rods 6 and 6 in the second hydraulic cylinders 8 and 8. The lower molds A and B are separated from the match plate 7 by moving upward and downward substantially simultaneously while maintaining flatness from the stationary state.

続いて、図２のｂに示すように、第１油圧シリンダ５・５におけるピストンロッド１・１を伸長作動させる側に圧油を供給し続けて、第１油圧シリンダ５・５をストロークエンドまで伸長作動し上鋳型Ａ内在の上鋳枠２を上昇端まで上昇させるとともに、第１油圧シリンダ５・５のストロークエンドまでの伸長作動に伴い第１油圧シリンダ５・５におけるピストンロッド１・１を収縮作動させる側から排出される油は、第２油圧シリンダ８・８におけるピストンロッド６・６を伸長作動させる側を満たした後、四方口方向切換弁２０の切換えにより、油圧タンク１７に戻される。
なお、 上・下鋳枠２・４が分離したマッチプレート７は、図示しないマッチプレート搬入出機構の上に載る。 Subsequently, as shown in FIG. 2 b, the pressure oil is continuously supplied to the side of the first hydraulic cylinder 5, 5 where the piston rod 1, 1 is extended, and the first hydraulic cylinder 5, 5 is moved to the stroke end. The upper casting frame 2 in the upper mold A is lifted up to the rising end, and the piston rods 1 and 1 in the first hydraulic cylinders 5 and 5 are moved along with the extending operation up to the stroke end of the first hydraulic cylinders 5 and 5. The oil discharged from the side to be contracted is returned to the hydraulic tank 17 by switching the four-way opening direction switching valve 20 after filling the side of the second hydraulic cylinders 8 and 8 for extending the piston rods 6 and 6. .
The match plate 7 from which the upper and lower casting frames 2 and 4 are separated is placed on a match plate loading / unloading mechanism (not shown).

Claims (1)

マッチプレート、上・下鋳枠および上・下スクイズプレートを用いて前記上・下鋳枠内にそれぞれ造型した上・下鋳型を、ピストンロッドの先端が前記上鋳枠の左右両側に装着されかつそのシリンダ本体が前記下鋳枠の左右両側にそれぞれ装着された２本の上向きの第１油圧シリンダと、前記下鋳枠の前後左右四側面にそれぞれ装着されピストンロッドの伸長作動により前記マッチプレートを前記下鋳枠から押し離す方向へ押圧可能な４本の上向きの第２油圧シリンダとを用いて前記マッチプレートから分離する方法であって、
前記マッチプレートがほぼ静止した状態の下に、前記上・下鋳枠内にそれぞれ造型した上鋳型および下鋳型を、静止状態から平面度を維持しながらほぼ同時に上および下方向へそれぞれ移動させて前記マッチプレートから分離することを特徴とする上・下鋳型のマッチプレートからの分離方法。 Upper and lower molds formed in the upper and lower casting frames using match plates, upper and lower casting frames and upper and lower squeeze plates, respectively, and piston rod tips are mounted on both the left and right sides of the upper casting frame, and The cylinder body has two upward first hydraulic cylinders mounted on the left and right sides of the lower casting frame, and the match plate is mounted on the front, rear, left, and right side surfaces of the lower casting frame by extending the piston rod. A method of separating from the match plate using four upward second hydraulic cylinders that can be pressed in a direction to be pushed away from the lower casting frame,
Under the condition that the match plate is almost stationary, the upper mold and the lower mold respectively molded in the upper and lower casting frames are moved upward and downward almost simultaneously while maintaining flatness from the stationary state. A method for separating the upper and lower molds from the match plate, wherein the upper and lower templates are separated from the match plate.
JP2009023699A 2009-02-04 2009-02-04 Separation method of upper and lower molds from match plate Expired - Lifetime JP4817081B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744549A (en) * 1967-08-18 1973-07-10 Buehler Eugen Apparatus for automatic production and transportation of flaskless sand moulds in metal casting
JPS6418547A (en) * 1987-07-13 1989-01-23 Taiyo Chuki Kk Automatic snap flask molding method
US4840218A (en) * 1987-04-01 1989-06-20 Hunter Automated Machinery Corporation Automatic matchplate molding system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744549A (en) * 1967-08-18 1973-07-10 Buehler Eugen Apparatus for automatic production and transportation of flaskless sand moulds in metal casting
US4840218A (en) * 1987-04-01 1989-06-20 Hunter Automated Machinery Corporation Automatic matchplate molding system
JPS6418547A (en) * 1987-07-13 1989-01-23 Taiyo Chuki Kk Automatic snap flask molding method

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