Driving type auxiliary ejector rod

Abstract

The invention discloses a driving type auxiliary ejector rod which comprises a fixed cylinder and an ejector rod, a connecting disc is fixed to the bottom end of the fixed cylinder, a driving motor is installed below the connecting disc, the output end of the driving motor is connected with a screw rod, the outer portion of the screw rod is spirally sleeved with a movable pipe, the movable pipe extends into the fixed cylinder, the part, extending into the fixed cylinder, of the movable pipe is sleeved with a spring, the bottom end of the spring is welded to the inner bottom face of the fixed cylinder, and the ejector rod penetrates through the interior of the fixed cylinder. According to the driving type auxiliary ejector rod, the driving motor controls the screw rod to rotate, the friction between the movable pipe and the bottom of the fixed cylinder is large due to the threads on the outer wall of the movable pipe, and therefore the movable pipe can keep not rotating, the movable pipe can move up and down along the screw rod, the ejector rod on the movable pipe can be ejected upwards, and the purpose of automatic driving type extension of the driving type auxiliary ejector rod is achieved.

Description

technical field [0001] The invention relates to the technical field of mold ejector rods, in particular to a driven auxiliary ejector rod. Background technique [0002] In the mold, in order to realize the demoulding work, it is necessary to use the ejector rod to eject the formed workpiece. The ejector rod is set in the mold and penetrates from the mold. According to the penetration angle, the ejector rod can be divided into straight Ejector rod and oblique ejector rod. For workpieces that require oblique core pulling, it is often necessary to use an oblique ejector rod. [0003] The structure of the existing ejector rod is simple, and its ejection action is also very easy to be controlled. It only needs to eject the ejector rod from the mold. The power can be manpower, or a telescopic rod such as a pneumatic rod or a hydraulic rod. parts, but the ejector rod itself is not movable, which leads to the need to install multiple ejector rod ejection mechanisms on the mold, whi...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a driven auxiliary ejector rod to solve the problem that the existing ejector rod proposed in the above background technology has a simple structure and no mobility itself, which leads to the need to install multiple ejector rods on the mold. issue of agency

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