Tin-dropping electric soldering iron

Abstract

The invention belongs to an electric soldering iron in an electric appliance repairing industry, and particularly relates to a tin-dropping electric soldering iron. The tin-dropping electric soldering iron consists of a soldering nozzle, an outer bushing, a piston, a heating tube, a heat insulation pushing rod, a pin, a conducting wire, a handle, a tightening screw, a pushing rod, a conducting wire connector, a return spring, a rear cover and a button. When in welding, a tin soldering wire penetrates through a wire feeding hole, the button is pressed down, an annular edge of the piston and an edge of the outer bushing collectively cut off the tin soldering wire and seal the tin soldering wire into a tin melting cavity between the soldering nozzle and the piston, and the tin soldering liquid is pushed out through a tin outlet hole in the front end of the soldering nozzle by continuously pressing the button. When the piston is reset under the effect of the return spring, pressure difference can be formed in the tin melting cavity and used for recycling the soldering tin, i.e. the tin-dropping electric soldering iron integrates the function of the electric soldering iron and the function of a tin absorber. By adopting the tin-dropping electric soldering iron, the problem of the volatilization of rosin in the tin soldering wire easily caused by a tin-dropping electric soldering iron can be overcome, and the problems that the pseudo soldering and desoldering are easily caused by the small contact area between the tin soldering wire and a soldering head of an ordinary electric soldering iron, the flow direction and the flow rate of the soldering tin are difficult to control, and the electric soldering iron needs to be operated by two hands can be overcome.

Description

technical field [0001] The invention belongs to an electric soldering iron in the electric appliance maintenance industry, and in particular relates to a tin-drop type electric soldering iron. technical background [0002] Rosin is easy to volatilize at high temperature. The current tin-drop soldering iron generally has the problem that the solder wire is heated for a long time to volatilize the rosin mixed in it, which affects the soldering effect. [0003] Most of the existing electric soldering irons are inconvenient to feed the wire, the contact area between the solder wire and the welding head is small, the temperature rises slowly, and the efficiency is low, which easily causes problems of virtual soldering and desoldering. [0004] Most of the existing electric soldering irons are not easy to control the flow direction and flow of solder, requiring both hands to operate, and have no solder recovery function. Contents of the invention [0005] Aiming at the deficien...

AI Technical Summary

Problems solved by technology

[0002] Rosin is easy to volatilize at high temperature. The current tin-drop soldering iron generally has the problem that the solder wire is heated for a long time to volatilize the rosin mixed in it, which affects the soldering effect.

[0003] Most of the existing electric soldering irons are inconvenient to feed the wire, the contact area between the s

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