Steel pipe sealing mechanism

Abstract

The invention discloses a steel pipe sealing mechanism. The steel pipe sealing mechanism comprises a hollow outer main shaft. A shaft sleeve with an eccentric hole is fixedly arranged in the outer main shaft. An inner main shaft is rotationally connected in the eccentric hole of the shaft sleeve. The inner main shaft rotates around the axis of the outer main shaft while rotating around the axis ofthe inner main shaft. A sealing die is fixedly arranged at one end of the inner main shaft. By the adoption of the steel pipe sealing mechanism, the inner main shaft and the outer main shaft can be separated and the sealing die can be driven, so that the sealing die can rotate around the outer main shaft while rotating around the axis of the inner main shaft, the system stability is improved, thepipe end is subjected to uniform spinning, the impact on equipment during sealing is reduced, the service life of the die and the equipment is prolonged, and the consistency of the sealing shape is improved; and meanwhile the problem of uneven extrusion of the end portion of a steel pipe caused by rotating movement of the steel pipe in the prior art is avoided, and the sealing quality is improved.

Description

technical field [0001] The invention relates to a steel pipe sealing mechanism, which belongs to the technical field of steel pipe sealing machines. Background technique [0002] In the production process of some special metal round tube products, it is necessary to seal the end of the hollow round tube so that the end is in a sealed structure. [0003] At present, the pipe end sealing machines on the market use the steel pipe to rotate, and the swing arm rotates to drive the wheel or the mold to seal. Such a sealing mechanism has the following disadvantages: [0004] 1. The steel pipe of the existing sealing mechanism rotates, and the sealing mold does not move. When the steel pipe rotates, there will be movement. When sealing, it is easy to cause uneven extrusion at the end, and it is easy to produce tiny gaps on the head. After a long time, it will cause The working medium leaks, shortens the service life of the steel pipe, reduces the sealing effect, and has a high rate...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved in the present invention is to provide a steel pipe sealing mechanism for the above deficiencies, which can realize the separation of the inner and outer main shafts to drive the sealing mold, realize the self-rotation of the sealing mold and revolve around the outer main shaft at the same time, increase the stability of the system, and carry out the sealing of the pipe end. Uniform spinning reduces the impact on the equipment during sealing, prolongs the service life of the mold and equipment, improves the consistency of the sealing shape, and at the same time avoids the problem of uneven extrusion at the end of the steel pipe caused by the rotation and movement of the steel pipe in the prior art. Sealing quality

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