Extrusion device and extruding machine with same

Abstract

The invention relates to an extrusion device which comprises an extrusion pad, an extrusion rod and a connecting part, wherein the extrusion pad comprises an outer bush and a lining, the outer bush is axially provided with an accommodating hole, the lining is accommodated in the accommodating hole, and the outer bush is connected with the lining; the extrusion rod is axially provided with an inner hole; and one end of the connecting part is cooperated with the inner hole of the extrusion rod, and the other end of the connecting part is connected with the extrusion pad, so that the extrusion pad is fastened with the extrusion rod, and the connecting part and the extrusion rod can move relative to each other along the axial direction. In the extrusion device, the extrusion pad is fixedly connected with the extrusion rod, and therefore, in the process of extrusion, the extrusion rod is always attached to the end face of the extrusion pad; because the connecting part and the extrusion rod can move relative to each other along the axial direction, a situation that the extrusion rod directly transfers a force to the extrusion pad is ensured, and a situation that a force is transferred by the connecting part is avoided, thereby ensuring the service life of the extrusion device; and the extrusion rod drives the extrusion pad to withdraw, so that an aluminium ingot blank is completely separated from the extrusion pad, thereby solving the problem that remnant extruding materials are attached to the extrusion pad and the extrusion pad and an extruding cylinder are non-concentric.

Description

technical field [0001] The invention relates to the technical field of extrusion fittings of aluminum profiles, in particular to an extrusion device and an extrusion machine comprising the extrusion device. Background technique [0002] Modern aluminum profile extrusion technology started late in our country, but since my country's reform and opening up, with the continuous rapid development of my country's economy and the increasing progress of science and technology, my country's aluminum profile extrusion technology has made considerable development and progress, and my country has become a global The largest producer of aluminum profiles. However, compared with developed countries, my country's extrusion technology still has a big gap, mainly reflected in: the extrusion method is too single, the extrusion theory and technology of large-section profiles are immature, and the range of extrudable aluminum alloys is not wide enough. [0003] refer to figure 1 At present, th...

AI Technical Summary

Problems solved by technology

Moreover, the currently used extrusion pad 12 placement method is manual, and the extrusion cycle is long, thereby reducing efficiency, increasing energy consumption and cost

If a mechanical method is used, it will inevitably increase the complexity of the equipment

Therefore, the movable extrusion device 10 is complicated to operate, the steps are cumbersome, waste of manpower, and the production efficiency is low.

[0008] refer to figure 2 , in the extrusion process, since the extrusion pad 12 is movable, when the extrusion rod 11 is pushed to squeeze the extrusion pad 12, the thrust cannot directly act on the extrusion pad 12, and the extrusion pad 12 cannot Concentric with the extrusion cylinder 14, the gap between the extrusion pad 12 and the extrusion cylinder 14 is uneven, and the upper part of the gap is too large, which will easily lead to the reverse flow of aluminum metal, and the upper part of the extrusion pad 12 will be easily wrapped by aluminum metal , which further leads to the difficulty of separating the extrusion pad 12 from the residual pressure and the premature wear and deformation of the extrusion cylinder, which makes it easy to accumulate impurities on the surface of the aluminum ingot in the extrusion cylinder 14, affecting the quality of the profile and even scrapping it

Therefore, using the movable extrusion device 10, the extrusion cylinder 14 needs to be regularly shut down for cleaning, which reduces the output and increases the labor intensity and production cost.

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