Gluing gun nozzle and gluing system

Abstract

The invention provides a gluing gun nozzle and a gluing system. The gluing gun nozzle comprises a main body, a glue cavity is formed in the main body, and a glue inlet is formed in one end, in the main body, of the glue cavity and used for being in butt joint with a glue conveying device; the other end of the main body is a transition conical surface with the outer diameter gradually reduced in the direction away from the glue inlet, the tail end, away from the glue inlet, of the transition conical surface is a glue outlet nozzle, the glue cavity is communicated with the glue outlet nozzle, and a glue outlet is formed in the glue outlet nozzle; and a chamfered conical surface is arranged at the edge of the glue outlet of the glue outlet nozzle. According to the gluing gun nozzle and the gluing system, the length-diameter ratio of the glue outlet nozzle is increased, so that the problem of leakage at the glue outlet is solved, the waste of glue raw materials is reduced, and the production cost is saved; the chamfered conical surface is additionally arranged at the edge of the glue outlet of the glue outlet nozzle, so that the glue is synchronously and quickly broken at the glue outlet and the glue inlet, and the defects of excessive glue, insufficient glue, insufficient glue and the like caused by the fact that the glue is broken in advance due to manual setting of the glue breaking delay are reduced; the appearance of the gluing gun nozzle is set to be hexagonal so as to be convenient to disassemble.

Description

technical field [0001] The invention belongs to the technical field of water heater manufacturing, and more particularly relates to a gluing nozzle which is especially suitable for gluing and bonding a flat tube of a micro-channel heat exchanger and a water heater inner tank and a gluing system using the same. Background technique [0002] At present, in the field of water heater technology, the emerging micro-channel heat exchanger has the advantages of small flow resistance, large contact area with the water heater tank, high heating efficiency and low production cost, and has been gradually applied to air energy water heaters. The microchannel heat exchanger is composed of a plurality of flat tubes. During production, the surface of the flat tubes is coated with heat-dissipating silicone grease, and then the microchannel heat exchanger is adhered to the inner tank of the water heater to realize heat exchange. [0003] In the traditional micro-channel heat exchanger, the b...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem that the existing flat tube of the micro-channel heat exchanger is bonded to the water heater liner, a large number of leaks and defects such as excessive glue, little glue and lack of glue will occur when the conventional glue nozzle is used to apply glue. A gluing gun nozzle especially suitable for gluing and bonding flat tubes of microchannel heat exchangers and inner tanks of water heaters and a gluing system using the same

Images