A precision-controlled electrostatic powder spraying machine
An electrostatic powder and spraying machine technology, applied in the direction of liquid spraying equipment, etc., can solve the problem that it is difficult to ensure that the concave surface absorbs powder, etc., and achieve the effect of easy storage and calling, simple and clear data, and simplified data model
Active Publication Date: 2019-10-11
TIANCHANG JINLING ELECTRONICS
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Problems solved by technology
[0003] Due to the changeable structure of the object to be coated and the uneven surface layer, most of the sprayed particles tend to adhere to the convex surface of the workpiece, and it is difficult to ensure that the concave surface absorbs enough powder
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Embodiment 1
[0037] This embodiment provides a method for establishing an evaluation mask and fill model, specifically as follows.
[0038] The first step is to establish the first covering layer that completely covers the workpiece model. The center point of any arc on the first covering layer is located on the side of the workpiece model, or its center point is located on the side away from the workpiece model but its The arc center angle is less than 90 degrees; no less than one surface layer cavity is formed between the first mask layer and the workpiece model.
[0039] The second step is to establish an evaluation model for each surface chamber, and select the surface chamber corresponding to the evaluation model whose interface with the first mask layer is greater than or equal to the preset gap threshold as the supplementary chamber; for each supplementary chamber, establish The second covering of the inner wall. For any arc on the second covering layer, its center point is located...
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The invention discloses an accurate-control-type static powder coating machine. The accurate-control-type static powder coating machine comprises a scanning unit, a foundation modeling unit, a three-dimensional treatment unit, a first spraying gun, a second spraying gun and a control unit. The control unit controls the first spraying gun to spray powder on to-be-sprayed workpieces on the whole and controls the second spraying gun to spray the internally concave surface layers of the workpieces where all filling models are located according to the corresponding powder spraying inlet positions and incidence directions. In the accurate-control-type static powder coating machine, an evaluation covering layer and the filling models are arranged, under the condition that powder spraying of the workpieces on the whole is uniform, through pre-judgment of the filling models, the second spraying gun with a small aperture is utilized for fixed-point and oriented spraying, and thus the problem that powder is not prone to being sprayed on the sunken areas of the upper portions of the workpieces is solved.
Description
technical field [0001] The invention relates to the technical field of electrostatic spraying, in particular to a precision-controlled electrostatic powder spraying machine. Background technique [0002] The electrostatic spraying method uses the grounded object to be coated as the anode, the high-voltage electric grid of the equipment as the cathode, and the electrostatic spray gun is connected to a negative high voltage to form a high-voltage electrostatic field between the two electrodes, and the cathode generates corona discharge to charge the sprayed paint particles. And further atomization, according to the principle of same-sex repulsion and opposite-sex attraction, the charged paint particles absorb the coated object along the direction of the electric force line under the action of the electrostatic field, and adhere to the coated object after discharge. [0003] Due to the changeable structure of the object to be coated and the uneven surface layer, most of the spr...
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IPC IPC(8): B05B5/08
Inventor 茆文斌
Owner TIANCHANG JINLING ELECTRONICS