Projection screen optical coating spraying equipment

Abstract

The invention discloses projection screen optical coating spraying equipment. The projection screen optical coating spraying equipment comprises spraying vertical frames. The bottoms of the spraying vertical frames are perpendicular to a spraying moving trolley which stably moves leftwards and rightwards. The tops of the three spraying vertical frames which are arrayed in a line shape on the sideof the spraying moving trolley are all provided with top rail guide wheels, and the top rail guide wheels are embedded into a top rail to pull the spraying vertical frames and enhance the stability and the overturning performance of the spraying vertical frames. By means of the spraying equipment, the uniformity of protection screen optical coating spraying and the appearance quality of coatings can be ensured, and the projection screen coatings reach the established projection optical index; according to a spraying process of the projection screen optical coating spraying equipment, the reliability and the adjustment flexibility are greatly improved, and the quality problems caused by the equipment in the production process are obviously reduced; and the equipment is suitable for production of various projection screens needing optical coating spraying, the design is novel, a very good innovation scheme is achieved, and great market popularization prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of screen production, in particular to a screen optical paint spraying equipment. Background technique [0002] The projection surface of the movie screen is usually provided with a layer of optical coating for reflecting the projection screen of the projector. The optical coating has certain optical properties, such as scattering angle, polarization ratio and other optical performance requirements of the screen. And the stability of the spraying process will directly affect the projection optical characteristics of the screen and the appearance and projection quality of the screen, and the coating process of the screen directly depends on the spraying process and method of the optical coating. [0003] At present, the optical coating of the screen is sprayed by special equipment. The spraying operation of the screen coating is completed through mechanical structure and electrical control, and the spraying p...

AI Technical Summary

Problems solved by technology

[0004] As the most important equipment in the screen production process, due to the difference in its operation and control methods, it will bring many different problems to the screen, such as inaccurate feeding and positioning of spraying equipment, unstable operation of the spray gun, and difficulties in equipment structure or process adjustment. Both will lead to uneven spraying of the screen coating, resulting in quality problems such as screen stripe shadows

[0005] Existing spraying equipment is generally of mechanical control structure, which has defects such as low feed control accuracy, inflexible adjustment of production process parameters, low degree of automation, and high labor intensity of spraying operators; for example, the control of equipment spraying feed speed is not accurate , the main structure of the equipment lacks rigidity, which makes the spray gun shake during operation or cannot accurately control the spraying distance and spraying speed, resulting in uneven spraying and screen quality problems

[0006] Ordinary spraying equipment adopts a free gravity balance operation structure during the upper and lower spraying operations, so that the speed of the spray gun in the process of spraying in the up and down direction cannot be guaranteed to be absolutely uniform, and the running speed of the spray gun is inconvenient to adjust, so that the spraying process cannot be adjusted flexibly

Ordinary spraying equipment uses ordinary power cords to connect to the power supply. When the equipment moves over a large distance, the power cords need to be dragged together. Long-term use will easily lead to power cord wear, leakage, short circuit and other problems. There are deficiencies and cannot meet social development. needs

[0007] In order to reduce the quality problems of screen spraying caused by reasons such as equipment structure, electricity, control form, etc., the present invention provides a screen optical paint spraying equipment to solve the deficiencies in the prior art

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