Pecker driving and positioning device of vertical extruder

Abstract

The invention discloses a pecker driving and positioning device of a vertical extruder, which comprises an upper crossbeam, an extrusion beam, a main cylinder body, a main plunger piston, a piston, a draw bar and a pecker; the main cylinder body is fixedly arranged on the upper crossbeam; the upper plunger piston is slidably sleeved in a plunger piston cavity of the main cylinder body, and the lower end of the main plunger piston is fixedly connected with the extrusion beam; the piston is slidably sleeved on a piston cavity of the main plunger piston; the lower end of the piston is provided with a piston rod; the one end of the draw bar passes through the plunger piston cavity and the piston cavity and is fixedly connected with the upper end of the piston, and one end of the draw bar is positioned at the upper part of the main cylinder body and provided with a nut which forms positioning together with the upper end of the main cylinder body; and the pecker is fixedly arranged at the lower end of the piston rod. According to the pecker driving and positioning device, the pecker is driven by the piston arranged in the main plunger piston, the occupied space is reduced, the positioning precision is high, and the product quality can be improved. The pecker driving and positioning device disclosed by the invention has the advantages of simple structure, low manufacturing cost, resource saving and strong market competitiveness.

Description

technical field [0001] The invention relates to a vertical extrusion machine, in particular to a perforating needle driving and positioning device for the vertical extrusion machine. Background technique [0002] Vertical extrusion machine is commonly used equipment in the non-ferrous metal extrusion industry. When extruding metal pipes, the extrusion process with fixed piercing needles is usually used. [0003] At present, the driving of the perforating needle of the extrusion machine is usually driven by hydraulic pressure due to its large force, and the positioning of the perforating needle includes two forms: hydraulic pressure and mechanical. When the perforating needle is driven and positioned hydraulically, due to the elasticity of the hydraulic medium (hydraulic oil, etc.) and the response time of the hydraulic components (hydraulic valve, etc.), inaccurate and delayed positioning often occur, which greatly affects the extrusion process. The safety performance of t...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the extruder 1 with this structure is that the two external tie rods 18 take up a lot of space, and the lifting beam 17 needs to be installed, which has a complicated structure, resulting in a huge structure of the extruder 1 and a large space occupation.

In addition, when the two sets of hydraulic cylinders 19 work together with the external pull rod 18, it is easy to have positioning accuracy problems, and eventually the perforating needle 15 is prone to tilt, which affects product quality

Finally, the lifting beam 17, the two external pull rods 18 and the two hydraulic cylinders 19 all increase the manufacturing cost of the extrusion machine 1, waste resources and obviously lack market competitiveness

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