Liquid-state metal printing pen tube

Abstract

The invention relates to a liquid-state metal printing pen tube. The liquid-state metal printing pen tube is provided with an inner cavity used for containing liquid-state metal; a pen groove is a cylindrical sleeve body, the diameter of an inner cavity is in clearance fit with a lower cylinder of the printing pen tube, the inner cavity is used for containing the lower cylinder of the printing pentube, and in the printing process, the printing pen tube can achieve free falling in a cavity of the pen groove; and a heating coil is vertically and spirally wound in the cylindrical sleeve body ofthe pen groove, a buffer coil is vertically and spirally wound in a gradual shrinking conical body of the printing pen tube, a pen point is formed on the lower surface of the gradual shrinking conicalbody of the printing pen tube in a protruding manner, and a tail end of the printing pen tube is formed. According to the liquid-state metal printing pen tube, the pushing impulsion of the printing pen tube can be effectively reduced, pressure during printing becomes simple and controllable, a vortex dual-point heating manner is adopted, heating efficiency of liquid-state metal is higher, and heating is more uniform.

Description

technical field [0001] The invention relates to a liquid metal printing pen tube, in particular to a printing pen tube used in the field of liquid metal printing. Background technique [0002] In the prior art, when printing liquid metal, an electromagnet is usually used to control the pen tube to press down. The disadvantage of this design is that it is difficult to control the instantaneous momentum caused by the acceleration of the electromagnet during printing. For example, the actual setting pressure of the electromagnet is 100g, but in actual operation, the instantaneous momentum of the printing pen tube pressing down on the substrate can reach 800-1000g. [0003] Other solutions in the prior art, such as air pressure control, motor control, etc., have their own defects, such as the problem of hysteresis, which will have a certain impact on accurate printing. [0004] At the same time, when using liquid metal with a low melting point for printing, the technical means ...

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Problems solved by technology

[0003] Other solutions in the prior art, such as air pressure control, motor control, etc., have their own defects, such as the problem of hysteresis, which will have a certain impact on accurate printing

[0004] At the same time, when using liquid metal with a low melting point for printing, the technical means to realize heating and melting in the prior art is usually to use electric heaters for heating, but this method will cause uneven heating of electric heaters in practical applications, low heating efficiency, and high Problems such as excessive deviation between the temperature of the hot spot and the temperature of the printing pen tip

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