Independent male die ejection mechanism for multi-station cold header

Abstract

The invention discloses an independent male die ejection mechanism for a multi-station cold header. The independent male die ejection mechanism comprises a main slider and a driving source. The driving source is positioned above the slider and capable of horizontally sliding relative to the slider and comprises a horizontal long strip block and short strip blocks arranged on the lower end face of the long strip block, and two ends of the lower end face of each short strip block are in height difference with the lower end face of the long strip block. A swing rod and an ejection arm are vertically arranged on the main slider, the ejection arm consists of a first arm and a second arm, a certain included angle is formed by the first arm and the second arm, the right end of the swing rod and the middle of the ejection arm in the certain included angle are respectively rotatably connected with the main slider, the left end of the swing rod is rotatably connected with a free end of the first arm through a connecting rod, a return spring is arranged between the first arm and the main slider, and a free end of the second arm is capable of moving close to or away from the right end of an ejection rod. The independent male die ejection mechanism for the multi-station cold header has the advantages of large swing amplitude of the ejection arm, small space occupancy of the driving source and large ejected distance of the ejection rod.

Description

technical field [0001] The invention relates to an independent male mold ejection mechanism of a multi-station cold heading machine. Background technique [0002] The male mold ejection mechanism of the cold heading machine is driven by the crankshaft as the driving source, and controls the rotation of the ejector arm through a series of transmission components. The rotating ejector arm ejects the ejector rod, and the ejector rod is ejected. It is determined by the swing angle of the ejector arm, and the swing range of the ejector arm is determined by the motion of the crankshaft. Since the motion of the crankshaft is fixed and small, the swing range of the ejector arm is small and cannot be adjusted. Correspondingly, the ejector rod The ejected distance is small and the ejected distance is constant; the placement of the crankshaft requires a large footprint; generally, the cold heading machine is equipped with multiple male mold ejection mechanisms, considering the large fo...

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Problems solved by technology

[0002] The male mold ejection mechanism of the cold heading machine is driven by the crankshaft as the driving source, and controls the rotation of the ejector arm through a series of transmission components. The rotating ejector arm ejects the ejector rod, and the distance that the ejector rod is ejected It is determined by the swing angle of the ejector arm, and the swing range of the ejector arm is determined by the path of the crankshaft. Since the path of the crankshaft is fixed and small, the swing range of the ejector arm is small and cannot be adjusted. Correspondingly, the ejector rod The ejected distance is small and the ejected distance is constant; the placement of the crankshaft requires a large footprint; generally, the cold heading machine is equipped with multiple male mold ejection mechanisms, considering the large footprint of the crankshaft A set of male mold ejection mechanism is equipped with only one crankshaft, and one crankshaft jointly drives multiple male mold ejection mechanisms. In addition, the thickness of the connecting rod is limited, so only multiple male mold ejection mechanisms can be adjusted as a whole. The ejector mechanism cannot be adjusted independently, and the applicability is poor

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