| 摘要 |
PURPOSE:To prevent eccentricity of the advancing/retiring directions of a ram shank while surely preventing mixing of a gear oil and a machining oil by strongly closely abutting a seal onto the ram shank. CONSTITUTION:The is device has a cylinder like sealing device body 14 attached on a deep draw ironing press 13 side, seal rings 15... attached on an inner circumference of this sealing device body 14 and providing seals 25 to closely abut onto a ram shank 12 of the DI press device 13 and a 1st, 2nd recessed parts 21, 22 to be attached with the seal rings 15,... are formed so as to run around this inner circumference on the inner circumference of the sealing device body 14. The inner diameter of these recessed parts 21, 22 is set in a few larger way than the outside diameter of sealing rings 15... and the width W1, W2 of the recessed parts 21, 22 in the axial line O direction of the ram shank 12 is set in a few larger way than the thickness of the seal rings 15.... |
