JPH03120910U - - Google Patents
Info
- Publication number
- JPH03120910U JPH03120910U JP2771290U JP2771290U JPH03120910U JP H03120910 U JPH03120910 U JP H03120910U JP 2771290 U JP2771290 U JP 2771290U JP 2771290 U JP2771290 U JP 2771290U JP H03120910 U JPH03120910 U JP H03120910U
- Authority
- JP
- Japan
- Prior art keywords
- dummy block
- compressed air
- stem
- piston
- loosening
- 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.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C26/00—Rams or plungers; Discs therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Description
第１図ないし第３図は本考案に係る押出プレス
におけるダミイブロツクのねじ緩み確認装置に関
する１実施例を示し、第１図は押出プレス装置の
押出方向に沿つて採つた縦断面図、第２図は押出
ステムの拡大縦断面図、第３図はフイツクスドダ
ミイブロツクの緩みの検知状態を知る動作図であ
つてａはダミイブロツクの緩みのない正常な状態
ｂは緩みが生じ、大径ピストンの移動に伴ない圧
縮空気の流通が若干阻止された状態、ｃは緩みが
生じ、大径ピストンの移動に伴なつて圧縮空気の
流通が完全に阻止された異常な状態を示す。
１３……コンテナ、２０……ステム、２４……
コネクシヨンロツド、２５……ダミイブロツク、
２６……ねじ緩み確認ピストン、２７……シリン
ダ、２８……バネ、３０……圧縮空気導入管、３
１……圧縮空気導出管、３４……圧力計、３７…
…バー、３８……ステム位置検出用部材、３９…
…位置検出器。
1 to 3 show an embodiment of the screw loosening confirmation device for a dummy block in an extrusion press according to the present invention, and FIG. 1 is a longitudinal sectional view taken along the extrusion direction of the extrusion press device, and FIG. 3 is an enlarged vertical cross-sectional view of the extrusion stem, and FIG. 3 is an operation diagram for determining the state of detection of loosening of the fixing dummy block. A state in which the flow of compressed air is slightly blocked as the piston moves, and c indicates an abnormal state in which loosening occurs and the flow of compressed air is completely blocked as the large-diameter piston moves. 13... Container, 20... Stem, 24...
Connection rod, 25...Dummy block,
26... Piston to check for screw loosening, 27... Cylinder, 28... Spring, 30... Compressed air introduction pipe, 3
1... Compressed air outlet pipe, 34... Pressure gauge, 37...
...Bar, 38...Stem position detection member, 39...
...Position detector.
Claims (1)
シヨンロツドを装通して配し、前記コネクシヨン
ロツドの一端部にダミイブロツクを螺合してステ
ム先端部に装着し、他端部にステム内に刻設され
たシリンダに係合してなるピストンを配し、ダミ
イブロツクがステム先端部に正常な状態で装着さ
れているとき、前記ピストンに通じる圧縮空気導
入管と圧縮空気導出管が連通するように配し、さ
らに、前記ピストンとシリンダボトム間にシリン
ダヘツド側へ伸縮自在なばねを押圧して間装させ
、前記ダミイブロツクのねじ部の緩みによつて前
記大径ピストンが移動し、前記圧縮空気導入管か
ら小径ピストンに通じる導入口が塞がれることで
圧縮空気圧の変化量を検出する圧力検出器を設け
たことを特徴とする押出プレスにおけるフイツク
スドダミイブロツクの緩み検知装置。 A hole is made along the axial center of the stem, a connection rod is inserted through the hole, a dummy block is screwed onto one end of the connection rod, the dummy block is attached to the tip of the stem, and the other end is inserted. A piston that engages with a cylinder carved in the stem is arranged, and when the dummy block is attached to the tip of the stem in a normal state, a compressed air inlet pipe and a compressed air outlet pipe leading to the piston are connected. Further, a telescopic spring is interposed between the piston and the cylinder bottom by pressing it toward the cylinder head, and the large diameter piston is moved by the loosening of the threaded portion of the dummy block. A device for detecting loosening of a fixed dummy block in an extrusion press, characterized in that a pressure detector is provided to detect a change in compressed air pressure when an inlet leading from the compressed air inlet pipe to a small diameter piston is blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2771290U JPH03120910U (en) | 1990-03-20 | 1990-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2771290U JPH03120910U (en) | 1990-03-20 | 1990-03-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03120910U true JPH03120910U (en) | 1991-12-11 |
Family
ID=31530551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2771290U Pending JPH03120910U (en) | 1990-03-20 | 1990-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03120910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017001087A (en) * | 2015-06-16 | 2017-01-05 | 宇部興産機械株式会社 | Control method for extrusion press |
-
1990
- 1990-03-20 JP JP2771290U patent/JPH03120910U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017001087A (en) * | 2015-06-16 | 2017-01-05 | 宇部興産機械株式会社 | Control method for extrusion press |
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