Liquid return split-flow type plate spraying device

Abstract

The invention discloses a liquid return split-flow type plate spraying device which comprises a spraying bin. A spray gun used for spraying a medicament to the surface of a plate is arranged in the spraying bin, a liquid collecting tank used for collecting the medicament is arranged at the bottom of the spraying bin, and a liquid return split-flow circulating system is arranged between the spray gun and the liquid collecting tank; the liquid return split-flow circulating system comprises a liquid supply tank, a liquid return tank and a cleaning liquid supply tank; a three-way connector is arranged on a liquid outlet of the liquid collecting tank, one end of the three-way connector is connected with the liquid return tank through a liquid return pipe, and another end of the three-way connector is connected with the cleaning liquid supply tank through a cleaning liquid return pipe; at least one layer of filter screen used for filtering particle impurities is arranged in the liquid returntank, and the filter screen is located below an outlet of the liquid return pipe; a liquid inlet pipe connected with the spray gun is arranged on the liquid supply tank, and a liquid inlet pump is arranged on the liquid inlet pipe; a liquid return communicating pipe is arranged between the liquid return pipe and the liquid supply tank for connection; and a cleaning liquid inlet pipe is arranged between the cleaning liquid supply tank and the spray gun, and a cleaning liquid inlet pump is arranged on the cleaning liquid inlet pipe.

Description

technical field [0001] The invention belongs to the technical field of plate processing, and in particular relates to a liquid return and diversion type plate spraying device. Background technique [0002] Among the existing household wooden products, a large number of solid wood particle boards and density boards are used. Solid wood particle board is made of wood or wooden poles, logs are broken, fine wood fiber is used on both sides, and long wood fiber is sandwiched in the middle. After applying adhesive, it is glued together under heat and pressure. The panel finish is melamine finish. Its section presents a honeycomb plate. Density board is called density fiberboard. It is made of wood fiber or other plant fiber, prepared by fiber, applied with synthetic resin, and pressed under heat and pressure. In addition to particle boards and density boards, the existing wood-based panels also include plywood and bamboo-wood composite boards. Wood floors, furniture, wall panel...

AI Technical Summary

Problems solved by technology

During the spraying process, the agent will splash around in the spray chamber, and the splashed agent will not adhere to the surface of the board. In the prior art, this part of the agent is directly discharged as waste liquid, resulting in waste of agent

In addition, in the prior art, the spraying agent needs to be pre-prepared and then input into the spray gun to spray on the plate, which not only increases the process, but also some pre-prepared agents may react with the external environment for a long time, reducing the efficacy

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