JPS6215302B2 - - Google Patents
Info
- Publication number
- JPS6215302B2 JPS6215302B2 JP57093983A JP9398382A JPS6215302B2 JP S6215302 B2 JPS6215302 B2 JP S6215302B2 JP 57093983 A JP57093983 A JP 57093983A JP 9398382 A JP9398382 A JP 9398382A JP S6215302 B2 JPS6215302 B2 JP S6215302B2
- Authority
- JP
- Japan
- Prior art keywords
- knockout
- hydraulic
- pneumatic
- converter
- force
- 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.)
- Expired
Links
- 238000005242 forging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Forging (AREA)
Description
【発明の詳細な説明】
本発明は鍛造プレスのボトムノツクアウト装置
に関するものである。特にロングストロークで、
単純な形状のボトムノツクアウト装置であつて、
ストローク開始に大きな力を出し、その后力は小
さいが、長いストロークを有するボトムノツクア
ウト装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bottom knockout device for a forging press. Especially with long strokes,
It is a bottom knockout device with a simple shape,
The present invention relates to a bottom knockout device which exerts a large force at the start of a stroke and has a small but long stroke after the force is exerted.
図の実施例において、１はプレスヘツド、２は
ボトムノツクアウトピン、３は油圧シリンダ、４
はボトムノツクアウトピストン、５は空油圧ブー
スタ、６は押上用の空油圧コンバータ、７は引き
戻し用の空油圧コンバータ、８はソレノイドバル
ブ、そして９もソレノイドバルブである。Ｓは圧
縮空気源である。 In the illustrated embodiment, 1 is a press head, 2 is a bottom knockout pin, 3 is a hydraulic cylinder, and 4 is a press head.
is a bottom knockout piston, 5 is a pneumatic hydraulic booster, 6 is a pneumatic hydraulic converter for pushing up, 7 is a pneumatic hydraulic converter for pulling back, 8 is a solenoid valve, and 9 is also a solenoid valve. S is a compressed air source.
今ソレノイドバルブ８とソレノイドバルブ９を
ONすると、空油圧ブースタ５の高圧力の油は通
路Ａを通つて油圧シリンダ３の下部へ流れ、ピス
トン４が高圧力で上昇する。ボトムノツクアウト
力は少しピストンが上昇すればよい。かくして、
コンバータ６の油がブースタ５を通つてノツクア
ウトシリンダ３の下部へ流れ、十分なストローク
を押し上げる。 Now solenoid valve 8 and solenoid valve 9
When turned ON, the high pressure oil in the pneumatic hydraulic booster 5 flows to the lower part of the hydraulic cylinder 3 through the passage A, and the piston 4 rises with high pressure. The bottom knockout force only needs to be a slight rise of the piston. Thus,
The oil in the converter 6 flows through the booster 5 to the bottom of the knockout cylinder 3, pushing up the full stroke.
ノツクアウトが終了すると、ソレノイドバルブ
８，９がOFFとなり、引き戻し用の空油圧コン
バータ７に圧力がかゝり、通路Ｂを通つた油がピ
ストン４を押し下げる。ピストン４の下部の油は
押上用の空油圧コンバータ６と空油圧ブースタ５
へ戻る。 When the knockout is completed, the solenoid valves 8 and 9 are turned OFF, pressure is applied to the air-hydraulic converter 7 for pulling back, and the oil passing through the passage B pushes down the piston 4. The oil at the bottom of the piston 4 is pumped up by a pneumatic hydraulic converter 6 and a pneumatic hydraulic booster 5.
Return to
以上の構成となつているから、最初の大きな加
圧力はブースタ５でまかない、あとのノツクアウ
トはコンバータ５からの油圧でまかなうので、空
気量を節減でき、かつシリンダ、ノツクアウトピ
ンの寿命をのばすことができる。 With the above configuration, the initial large pressurizing force is not provided by the booster 5, and the subsequent knock-out is covered by the hydraulic pressure from the converter 5, so the amount of air can be saved and the life of the cylinder and knock-out pin can be extended. I can do it.
以上の如く突き上げ開始の大きな力はブースタ
５によつて発生させ、比較的小さい押上力で、長
いストロークを要する段階では、空油圧コンバー
タを使用したことにより、鍛造プレスのノツクア
ウトピン操作用として好適である。 As mentioned above, the large force at the start of pushing up is generated by the booster 5, and at the stage where a long stroke is required with a relatively small pushing up force, the air-hydraulic converter is used, making it suitable for operating the knockout pin of a forging press. It is.
図は本発明に係るノツクアウト装置の回路図。
図において；１…プレスのベツド、２…ボトム
ノツクアウトピン、３…油圧シリンダー、４…ボ
トムノツクアウトピストン、５…空油圧ブース
タ、６…空油圧コンバータ（押上用）、７…空油
圧コンバータ（引き戻し用）、８，９…ソレノイ
ドバルブ。
The figure is a circuit diagram of a knockout device according to the present invention. In the figure: 1... Press bed, 2... Bottom knockout pin, 3... Hydraulic cylinder, 4... Bottom knockout piston, 5... Pneumatic hydraulic booster, 6... Pneumatic hydraulic converter (for pushing up), 7... Pneumatic hydraulic converter ( (for pulling back), 8, 9... Solenoid valve.
Claims (1)
大きな突上力は空油圧ブースタによつて高圧力で
作動させ、押上力は小さいが長いストロークの後
半のノツクアウト過程では空油圧コンバータを使
用することを特徴とする鍛造プレスのボトムノツ
クアウト装置。1 A forging characterized in that the large thrusting force at the start of the bottom knockout is activated at high pressure by a pneumatic-hydraulic booster, and the pneumatic-hydraulic converter is used in the knockout process in the latter half of the long stroke, where the pushing-up force is small but the stroke is long. Press bottom knockout device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57093983A JPS58212831A (en) | 1982-06-03 | 1982-06-03 | Bottom knock out device of forging press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57093983A JPS58212831A (en) | 1982-06-03 | 1982-06-03 | Bottom knock out device of forging press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58212831A JPS58212831A (en) | 1983-12-10 |
| JPS6215302B2 true JPS6215302B2 (en) | 1987-04-07 |
Family
ID=14097635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57093983A Granted JPS58212831A (en) | 1982-06-03 | 1982-06-03 | Bottom knock out device of forging press |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58212831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018118301A (en) * | 2017-01-27 | 2018-08-02 | アイダエンジニアリング株式会社 | Hydraulic knock-out device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100907006B1 (en) | 2007-08-29 | 2009-07-08 | 주식회사 재우프레스 | Hybrid Cylinder of Lower Knock-Out for Forging Press |
| CN105855446B (en) * | 2016-05-22 | 2017-10-24 | 上海大学 | Material lifting mechanism of cold heading machine |
| CN106368995B (en) * | 2016-11-22 | 2019-04-09 | 南通康海机床有限公司 | Electrichydraulic control press with feeding function of increasing pressure and backhaul pressure holding function |
| CN106368994B (en) * | 2016-11-22 | 2019-06-11 | 青岛明晖精锻设备有限公司 | Electrichydraulic control press |
| CN106368993B (en) * | 2016-11-22 | 2019-04-09 | 南通康海机床有限公司 | Double accumulators provide the electrichydraulic control press of hydraulic power |
| CN116329396B (en) * | 2023-04-24 | 2023-12-08 | 昆山亿飞航空智能科技有限公司 | Unmanned aerial vehicle mould that can demold fast |
-
1982
- 1982-06-03 JP JP57093983A patent/JPS58212831A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018118301A (en) * | 2017-01-27 | 2018-08-02 | アイダエンジニアリング株式会社 | Hydraulic knock-out device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58212831A (en) | 1983-12-10 |
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