JPH0287599U - - Google Patents
Info
- Publication number
- JPH0287599U JPH0287599U JP16779288U JP16779288U JPH0287599U JP H0287599 U JPH0287599 U JP H0287599U JP 16779288 U JP16779288 U JP 16779288U JP 16779288 U JP16779288 U JP 16779288U JP H0287599 U JPH0287599 U JP H0287599U
- Authority
- JP
- Japan
- Prior art keywords
- dictation
- pin
- cushion pad
- lowering
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Presses And Accessory Devices Thereof (AREA)
Description
図面はこの考案は一実施例を示し、第１図は回
路図、第２図は作用を説明するフローチヤート、
第３図は同線図、第４図は他の実施例を示す説明
図である。
１はプレス本体、１ａはボルスタ、２は下型、
２ａは下型ダイクツシヨンパツド、３はダイクツ
シヨンピン、４はダイクツシヨン、５はピン受け
台、８はロツキング装置、８ａは室、１４はサー
ボ弁、２１は上型、２３は油圧シリンダ。
The drawings show one embodiment of the invention, FIG. 1 is a circuit diagram, and FIG. 2 is a flowchart explaining the operation.
FIG. 3 is a line diagram, and FIG. 4 is an explanatory diagram showing another embodiment. 1 is the press body, 1a is the bolster, 2 is the lower die,
2a is a lower die-cutting pad, 3 is a die-cutting pin, 4 is a die-cutting pin, 5 is a pin holder, 8 is a locking device, 8a is a chamber, 14 is a servo valve, 21 is an upper die, 23 is a hydraulic cylinder .
Claims (1)
た下型２の近傍に設けられた下型クツシヨンパツ
ドを、ダイクツシヨンピン３を介してダイクツシ
ヨン４により弾性支持したものにおいて、上記ダ
イクツシヨンピン３を支持するピン受け台５をロ
ツキング装置８の室８３へ供給した油圧によりダ
イクツシヨン上限位置まで上昇させると共に、上
記室８３内の油圧を、上型２１が下型クツシヨン
パツド２ａに衝突するピンタツチ位置よりサーボ
弁１４によりドレンさせて、下型クツシヨンパツ
ド２ａを上型２１の下降速度に応じた速度で予備
下降させることを特徴とするダイクツシヨンの予
備下降装置。 (2) 上記室８３内の圧力が徐々に増加するよう
にサーボ弁１４を制御して、予備下降終了ととも
にダイクツシヨン能力とほぼ等しい圧力としてな
る請求項１記載の予備下降装置。 (3) 上記ピン受け台５内にダイクツシヨンピン
３を支持する油圧シリンダ２３を設けて、この油
圧シリンダ２３内の圧力をサーボ弁１４により制
御してなる請求項１記載の予備下降装置。[Scope of Claim for Utility Model Registration] (1) A lower die cushion pad provided near the lower die 2 installed on the bolster 1a of the press body 1 is elastically supported by a dictation 4 via a dictation pin 3. In this case, the pin holder 5 supporting the dictation pin 3 is raised to the upper limit position of the dictation by the hydraulic pressure supplied to the chamber 83 of the locking device 8, and the upper die 21 controls the hydraulic pressure in the chamber 83 . This preliminary lowering device for a dictation is characterized in that the lower mold cushion pad 2a is preliminarily lowered at a speed corresponding to the lowering speed of the upper mold 21 by draining from a pin touch position where the lower mold cushion pad 2a collides with the lower mold cushion pad 2a by a servo valve 14. (2) The pre-lowering device according to claim 1, wherein the servo valve 14 is controlled so that the pressure in the chamber 83 gradually increases, so that the pressure becomes approximately equal to the dictation capacity upon completion of the pre-lowering. (3) The pre-lowering device according to claim 1, wherein a hydraulic cylinder (23) for supporting the dictation pin (3) is provided within the pin holder (5), and the pressure within this hydraulic cylinder (23) is controlled by a servo valve (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988167792U JPH0744400Y2 (en) | 1988-12-27 | 1988-12-27 | Die cushion preliminary lowering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988167792U JPH0744400Y2 (en) | 1988-12-27 | 1988-12-27 | Die cushion preliminary lowering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0287599U true JPH0287599U (en) | 1990-07-11 |
| JPH0744400Y2 JPH0744400Y2 (en) | 1995-10-11 |
Family
ID=31456405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988167792U Expired - Lifetime JPH0744400Y2 (en) | 1988-12-27 | 1988-12-27 | Die cushion preliminary lowering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0744400Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51734A (en) * | 1974-06-25 | 1976-01-06 | Hitachi Shipbuilding Eng Co | SUIMONPIKYUKOKASOKUDOSEIGYOSOCHI |
| JPS5354481U (en) * | 1976-10-13 | 1978-05-10 | ||
| JPS6363536A (en) * | 1986-09-02 | 1988-03-19 | Ishikawajima Harima Heavy Ind Co Ltd | Die cushion device for press machine |
-
1988
- 1988-12-27 JP JP1988167792U patent/JPH0744400Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51734A (en) * | 1974-06-25 | 1976-01-06 | Hitachi Shipbuilding Eng Co | SUIMONPIKYUKOKASOKUDOSEIGYOSOCHI |
| JPS5354481U (en) * | 1976-10-13 | 1978-05-10 | ||
| JPS6363536A (en) * | 1986-09-02 | 1988-03-19 | Ishikawajima Harima Heavy Ind Co Ltd | Die cushion device for press machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0744400Y2 (en) | 1995-10-11 |
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