Roller gap measuring and regulating method of four-roller paint applicator

Abstract

The invention relates to a roller gap measuring and regulating method of a four-roller paint applicator. A device for the method comprises a four-roller paint applicator, wherein shaft heads at both ends of an upper rubber roller and a lower rubber roller are respectively arranged on a slide block, and one side of a roller gap between the upper rubber roller and the lower rubber roller is provided with a set of narrow laser generators which horizontally irradiate to the roller gap; a light path at the other side of the roller gap between the upper rubber roller and the lower rubber roller is provided with a set of photo-electric receiving converters; and output wires of the photo-electric receiving converters are connected with a stepping motor control circuit. The roller seam measuring and regulating method is characterized in that the measurement of a flexible roller gap in the four-roller paint applicator is realized by a narrow laser beam arranged on a precise measuring tool. The method has the advantages of higher precision, accurate control and simple circuit when utilized to measure and regulate the roller gap.

Description

technical field [0001] A method for measuring and adjusting a roll gap, in particular to a method for measuring and adjusting a roll gap of a four-roll paint machine. Background technique [0002] The main purpose of the four-roller paint machine is to coat the surface of the workpiece with a uniform and equal thickness of paint film according to the technical requirements, and then perform performance testing on the coated film workpiece according to the inspection standard. It is a necessary special equipment for the paint industry before paint performance testing. , the thickness of the paint film is measured in microns, and the accuracy of the thickness is mainly achieved by the gap between the upper rubber roller and the lower rubber roller. Therefore, the size of the gap is very high. The current four-roller paint The roll gap adjustment of the machine is generally observed by the handwheel dial, and then the screw is rotated by rotating the handwheel, so that the two-...

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Problems solved by technology

[0002] The main purpose of the four-roller paint machine is to coat the surface of the workpiece with a uniform and equal thickness of paint film according to the technical requirements, and then perform performance testing on the coated film workpiece according to the inspection standard. It is a necessary special equipment for the paint industry before paint performance testing. , the thickness of the paint film is measured in microns when coating the film, and the accuracy of the thickness is mainly achieved by the gap between the upper rubber roller and the lower rubber roller. The roll gap adjustment of the machine generally uses the handwheel dial to observe the scale, and then rotate the handwheel to drive the screw to rotate, so that the two-end bearing brackets that fix the upper rubber roller move up and down, and drive the upper rubber roller to also move up and down, thereby adjusting the upper roller. , and the gap between the lower rubber rollers. Although this method theoretically changes the gap between the two rollers by only 0.00238mm every time a scale is adjusted, in actual use, due to the cooperation of mechanical parts such as screw rods and bearings, there are Gaps, dust or wear, etc., cause uncertain factors in the mea

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