A multi-nozzle nozzle droplet spraying device

Abstract

The invention discloses micro-droplet spray equipment with a multi-nozzle spray head. The micro-droplet spray equipment comprises the multi-nozzle spray head, a workbench, an XY-axis moving device, aZ-axis moving device, a solution tank, a supporting frame and a control system, wherein the multi-nozzle spray head is mounted on the Z-axis moving device and positioned above the workbench; the workbench is mounted on the XY-axis moving device; the supporting frame is used for the mounting of all components; the multi-nozzle spray head comprises a main body, a mandrel, a motor and a multi-nozzlestructure; a plurality of solution channels which consist of solution inflow holes, ring-shaped grooves, solution outflow holes and nozzle channels are arranged in the multi-nozzle spray head; and nozzles are arranged at the outlets of the solution channels and uniformly distributed in a ring-shaped manner. Through the design that the exterior of the nozzles are stationary and the interiors of thenozzles are rotary, solution input ports can be fixed, and the change of spray materials can be rotationally completed at the output end; the complexity of a conventional multi-nozzle mechanism can be reduced; the operation can be simple; and furthermore, the problems that a solution supply pipe twists and the positioning is incorrect during the spray head conversion process of the conventional multi-nozzle device can be solved.

Description

technical field [0001] The invention relates to the technical field of droplet spraying, in particular to a structural design of multi-material and multi-scale multi-nozzle spraying head spraying equipment in the spraying process. Background technique [0002] Droplet jetting technology is a manufacturing technology that has developed rapidly in recent years. It realizes the precise distribution of microfluids by generating a certain level of droplets. It belongs to the category of non-contact direct writing manufacturing technology. Its manufacturing process is simple and the material utilization rate is close to 100%. %. Micro-spraying technology can not only make a single micro-optical element directly, but also quantitatively and positionally make elements on the required optical device to form an optical component, so it has great potential for development. [0003] At present, most of the droplet spraying equipment is single-nozzle spraying or multi-nozzle spraying, a...

AI Technical Summary

Problems solved by technology

[0004] 1. The nozzle adopts gear transmission during the conversion process and the moving process. Since there is a certain gap between the gear transmission, the existence of the gap during the forward rotation and reverse rotation of the gear will easily cause the lag of the nozzle conversion, which will affect the nozzle to a certain extent. Improve the spraying accuracy, at the same time, when the nozzle is switched, it is easy to cause the twisted tube of the droplet input tube, which leads to a series of problems;

[0005] 2. The overall nozzle is relatively heavy, which increases the motor load of the two dimensions (X axis, Y axis) of droplet ejection, which affects the ejection accuracy to a certain extent;

[0006] 3. The nozzle assembly is relatively large overall, and the design scheme of multiple nozzles with the same height and fixed side by side reduces the effective injection space of a single nozzle. Due to the complexity of the structure and the limitation of size, the number of configured nozzles is limited, and multiple The nozzle is equipped with a separate transmission device. Most of the nozzle and transmission parts are movable parts, which increases the difficulty of installation. The simultaneous movement of multiple movable parts is prone to vibration, which affects the spraying accuracy to a certain extent.

But the device does not enable multi-material printing

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