JPH0454600U - - Google Patents
Info
- Publication number
- JPH0454600U JPH0454600U JP9723890U JP9723890U JPH0454600U JP H0454600 U JPH0454600 U JP H0454600U JP 9723890 U JP9723890 U JP 9723890U JP 9723890 U JP9723890 U JP 9723890U JP H0454600 U JPH0454600 U JP H0454600U
- Authority
- JP
- Japan
- Prior art keywords
- upper limit
- lower table
- limit valve
- piping
- port side
- 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
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Control Of Presses (AREA)
Description
第１図はこの考案に係る上限バルブを作動せし
める油圧回路の説明図、第２図は従来のプレスブ
レーキで下部テーブルの上昇限を検出するための
構成図、第３図は従来の上限バルブを作動せしめ
る油圧回路の説明図である。
１……油圧シリンダ、５……配管、７……配管
、９……上限バルブ、１３……スプール、１５…
…配管、１７……配管、Ｐ……油圧ポンプ、Ｔ…
…タンク。
Figure 1 is an explanatory diagram of the hydraulic circuit that operates the upper limit valve according to this invention, Figure 2 is a configuration diagram for detecting the upper limit of the lower table with a conventional press brake, and Figure 3 is an illustration of the conventional upper limit valve. FIG. 3 is an explanatory diagram of a hydraulic circuit that is operated. 1... Hydraulic cylinder, 5... Piping, 7... Piping, 9... Upper limit valve, 13... Spool, 15...
...Piping, 17...Piping, P...Hydraulic pump, T...
…tank.
Claims (1)
しめることにより、上部テーブルに設けたパンチ
と下部テーブルに設けたダイとを協働せしめて、
ワークに所望の折曲げ加工を行なう折曲げ機であ
つて、前記下部テーブルの上昇限を検出する上限
バルブのＰポート側配管を、前記油圧シリンダと
油圧ポンプとを接続した配管に分岐接続すると共
に、前記上限バルブのＴポート側配管を、前記油
圧ポンプとタンクとを接続した配管に分岐接続し
てなることを特徴とする折曲げ機における上限バ
ルブの背分除去装置。 By moving the lower table up and down by the operation of a hydraulic cylinder, the punch provided on the upper table and the die provided on the lower table are made to work together.
The bending machine performs a desired bending process on a workpiece, and the P port side piping of the upper limit valve for detecting the upper limit of the rise of the lower table is branched and connected to the piping connecting the hydraulic cylinder and the hydraulic pump. . A back-removal device for an upper limit valve in a bending machine, characterized in that the T port side piping of the upper limit valve is branch-connected to a piping connecting the hydraulic pump and a tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9723890U JP2511879Y2 (en) | 1990-09-18 | 1990-09-18 | Back valve removal device for upper limit valve in folding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9723890U JP2511879Y2 (en) | 1990-09-18 | 1990-09-18 | Back valve removal device for upper limit valve in folding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0454600U true JPH0454600U (en) | 1992-05-11 |
| JP2511879Y2 JP2511879Y2 (en) | 1996-09-25 |
Family
ID=31837438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9723890U Expired - Lifetime JP2511879Y2 (en) | 1990-09-18 | 1990-09-18 | Back valve removal device for upper limit valve in folding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511879Y2 (en) |
-
1990
- 1990-09-18 JP JP9723890U patent/JP2511879Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2511879Y2 (en) | 1996-09-25 |
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