Automatic primer dipping and coating mechanism for plastic-coated spline shaft without sagging

Abstract

The invention discloses an automatic primer dipping and coating mechanism for a plastic-coated spline shaft without sagging, which comprises a machine room, a material basket, a material frame, a charging and discharging mechanism, a paint box, a paint box lifting mechanism and a hot air conveying mechanism, wherein the machine room is a semi-closed machine room, an air exhaust device is arranged on the top of the machine room, and a charging and discharging port is arranged at one side of the machine room; the material frame is arranged outside the charging and discharging port of the machine room, and the material basket is placed on the material frame; the charging and discharging mechanism is fixed in the machine room, and the charging and discharging mechanism is used for pulling the material basket into the machine room or pushing the material basket out of the machine room; the paint box lifting mechanism is fixed in the machine room, the paint box is arranged on the paint box lifting mechanism and is positioned below the material basket, and the paint box can move up and down under the action of the lifting mechanism; and the hot air conveying mechanism is fixedly arranged in the machine room. The invention can be used for realizing automatic dipping and coating with high dipping and coating efficiency, bottom sagging in the processes of dipping and coating is not generated, uniform paint layers are uniform, and simultaneously primers can be saved by 2 / 3.

Description

technical field [0001] The invention relates to a dip coating primer mechanism, in particular to a no-sagging automatic dip coating primer mechanism for plastic-coated spline shafts in automobile transmission shafts. Background technique [0002] Hooke-type automobile transmission shafts usually have a sliding spline pair structure, the spline pair is mainly composed of a sliding fork and a spline shaft, and the surface of the spline shaft is usually coated with nylon coating to improve product life and reduce vehicle driving. Vibration in. In order to strengthen the bonding force between the coating and the spline shaft before coating the nylon coating, it is usually necessary to apply a layer of primer on the surface of the spline shaft. There are two methods of conventional priming: manual brushing and dipping. Manual brushing will result in uneven paint layer, and there will be paint liquid hanging on the bottom of the workpiece. The solvent in the primer will volatiliz...

AI Technical Summary

Problems solved by technology

There are two methods of conventional primer coating: manual brushing and dip coating. Using a manual brush will result in uneven paint layer, and there will be paint liquid hanging on the bottom of the workpiece. The solvent in the primer will evaporate and damage the health of the operator.

Using the dip coating method, although the paint liquid hanging at the bottom of the workpiece can be absorbed by high-voltage static electricity after dip coating, which can reduce the unevenness of the paint layer, but the paint layer at the bottom of the workpiece is still thicker than the top, thereby reducing the bonding force of the plastic coating layer. At the same time, the paint liquid sucked away cannot be reused, resulting in waste

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