Automatic oilstone feeding device of portable plastic mould conformal-polishing machine

Abstract

The invention discloses an automatic oilstone feeding device of a portable plastic mould conformal-polishing machine. The automatic oilstone feeding device comprises a frame articulating rocker. Two ends of the rocker are articulated to a connecting rod A and a connecting rod B, respectively. The connecting rod A is articulated to a crank, while the connecting rod B is articulated to a slider. The slider is movably sleeved to a T-shaped slide carriage which is movably connected to a frame through a plurality of supporting rods each of which is provided with a bulb. A pressure spring is sleeved to each supporting rod. At least two bearings are embedded into the slider, and further sleeved to a worm. The extension end of the worm extends out of the slider. A ratchet wheel is fixedly mountedon the extension end of the worm and movably sleeved to an oscillating bar. The oscillating bar is inserted and sleeved in a swing block on the frame, and connected to an electromagnet. The electromagnet is provided with an iron core which is articulated to the rocking arm of a pawl. The pawl is articulated to the oscillating bar. A torsional spring is connected between the oscillating bar and the pawl. The worm is engaged with a worm wheel. A bevel gear is coaxially arranged on the worm wheel. Besides, the bevel gear is engaged with an oilstone rack. The device disclosed by the invention overcomes the defects of difficult automatic feeding of the mechanically polished oilstone and low production efficiency, and is suitable for being used together with the plastic mould conformal-polishing machine.

Description

technical field [0001] The invention relates to an automatic oil stone feeding device of a portable plastic mold conformal polishing machine. Background technique [0002] At present, in the manufacturing process of all plastic molds, the molded parts are first processed by CNC machine tools according to the NC program. This is a big problem. In order to obtain a smooth plastic part, the plastic mold must be polished to the molded part (cavity and core). In order to reduce the demoulding force, it must be polished along the demoulding direction. So far, plastic mold polishing has been done with oil stones for rough polishing and semi-finish polishing, and different grades of oil stones are used for polishing from coarse to fine. Because oil stones and working parts have different hardnesses, whether it is manual or mechanical polishing The wear rate is different. Manual polishing does not have the problem of difficulty in feeding the whetstone, while mechanical polishing ha...

AI Technical Summary

Problems solved by technology

So far, plastic mold polishing has been done with oil stones for rough polishing and semi-finish polishing, and different grades of oil stones are used for polishing from coarse to fine. Because oil stones and working parts have different hardnesses, whether it is manual or mechanical polishing The wear rate is different. Manual polishing does not have the problem of difficulty in feeding the whetstone, while mechanical polishing has high contact pressure and fast movement speed, so the whetstone wears quickly

Therefore, it is necessary to solve the problem of feeding the whetstone according to the amount, and it must be automatic feeding, otherwise the mechanical polishing will have no vitality

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