JPH039300U - - Google Patents
Info
- Publication number
- JPH039300U JPH039300U JP6903689U JP6903689U JPH039300U JP H039300 U JPH039300 U JP H039300U JP 6903689 U JP6903689 U JP 6903689U JP 6903689 U JP6903689 U JP 6903689U JP H039300 U JPH039300 U JP H039300U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- throttle hole
- press machine
- check valve
- cylinder
- 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
- 230000010349 pulsation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Presses And Accessory Devices Thereof (AREA)
- Control Of Presses (AREA)
Description
第１図はこの考案に係る油圧プレス機械の油圧
装置の主要経路図、第２図は第１図の矢視部の
拡大断面図、第３図は第２図に代る他の実施例を
示す同断面図、第４図は、第１図の矢視部の拡
大断面図、第５図はこの考案を実施する一実施例
の油圧式タレツトパンチプレスの側面図、第６図
Ａ，Ｂは従来における油圧ピストン位置と戻り回
路の油圧力との関係を示した図である。
１……油圧式タレツトパンチプレス、１７……
パンチ、１９……ダイ、２１……油圧シリンダー
装置、３７……油圧シリンダー、３９……ピスト
ン、４３……ラム、４７……ストライカ、４９…
…上部シリンダー室、５１……下部シリンダー室
、５３……油通路、５７……ソレノイドバルブ、
６１……油圧可変ピストンポンプ、７１……油タ
ンク、７９……戻り回路、８１……絞り穴付チエ
ツクバルブ、８３……ゴムホース、８９……バル
ブ本体、９１……接続口、９３……弁座、９５…
…スプリング、９７……ポペツト弁、９９……絞
り穴、１０１……当り面、１０３……筒状部、１
０５……内周面、１０７……ストツパー、１０９
……油溜り室。
Fig. 1 is a main route diagram of the hydraulic system of a hydraulic press machine according to this invention, Fig. 2 is an enlarged sectional view of the section taken in the direction of the arrow in Fig. 1, and Fig. 3 shows another embodiment in place of Fig. 2. 4 is an enlarged sectional view taken in the direction of the arrow in FIG. 1, FIG. 5 is a side view of a hydraulic turret punch press according to an embodiment of this invention, and FIG. 6A, B is a diagram showing the relationship between the hydraulic piston position and the hydraulic pressure of the return circuit in the conventional art. 1...Hydraulic turret punch press, 17...
Punch, 19... Die, 21... Hydraulic cylinder device, 37... Hydraulic cylinder, 39... Piston, 43... Ram, 47... Striker, 49...
... Upper cylinder chamber, 51 ... Lower cylinder chamber, 53 ... Oil passage, 57 ... Solenoid valve,
61...Hydraulic variable piston pump, 71...Oil tank, 79...Return circuit, 81...Check valve with throttle hole, 83...Rubber hose, 89...Valve body, 91...Connection port, 93...Valve Za, 95...
... Spring, 97 ... Poppet valve, 99 ... Throttle hole, 101 ... Contact surface, 103 ... Cylindrical part, 1
05... Inner peripheral surface, 107... Stopper, 109
...Oil sump room.
Claims (1)
上型と下型とを協働せしめてワークにプレス加工
を行なう油圧プレス機械において、前記油圧シリ
ンダーのシリンダー室と油圧回路の油タンクとに
接続された戻り回路に脈動防止用の絞り穴付チエ
ツクバルブを設けてなることを特徴とする油圧プ
レス機械の油圧装置。 (2) 前記絞り穴付チエツクバルブにおける絞り
穴の径が可変自在であることを特徴とする請求項
１記載の油圧プレス機械の油圧装置。[Scope of Claim for Utility Model Registration] (1) In a hydraulic press machine that presses a workpiece by moving a ram up and down using a hydraulic cylinder and causing an upper mold and a lower mold to work together, the cylinder chamber of the hydraulic cylinder and the hydraulic A hydraulic system for a hydraulic press machine, characterized in that a check valve with a throttle hole for preventing pulsation is provided in a return circuit connected to an oil tank of the circuit. (2) The hydraulic system for a hydraulic press machine according to claim 1, wherein the diameter of the throttle hole in the check valve with a throttle hole is variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989069036U JPH0644556Y2 (en) | 1989-06-15 | 1989-06-15 | Hydraulic system of hydraulic press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989069036U JPH0644556Y2 (en) | 1989-06-15 | 1989-06-15 | Hydraulic system of hydraulic press machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH039300U true JPH039300U (en) | 1991-01-29 |
| JPH0644556Y2 JPH0644556Y2 (en) | 1994-11-16 |
Family
ID=31603998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989069036U Expired - Lifetime JPH0644556Y2 (en) | 1989-06-15 | 1989-06-15 | Hydraulic system of hydraulic press machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0644556Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4579031B2 (en) * | 2005-03-30 | 2010-11-10 | 正明 宮嶋 | Water tank with groundwater level adjustment function for fields |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01254400A (en) * | 1988-01-13 | 1989-10-11 | Cincinnati Milacron Inc | Method of reducing intensity of sound at time of rapid release of high hydraulic fluid pressure and hydraulic circuit |
-
1989
- 1989-06-15 JP JP1989069036U patent/JPH0644556Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01254400A (en) * | 1988-01-13 | 1989-10-11 | Cincinnati Milacron Inc | Method of reducing intensity of sound at time of rapid release of high hydraulic fluid pressure and hydraulic circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4579031B2 (en) * | 2005-03-30 | 2010-11-10 | 正明 宮嶋 | Water tank with groundwater level adjustment function for fields |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0644556Y2 (en) | 1994-11-16 |