Spiral glue-shaped gluing nozzle

Abstract

The invention discloses a spiral glue-shaped gluing nozzle. The spiral glue-shaped gluing nozzle comprises a core shaft body, an outer sleeve component and an air supply head, wherein the outer sleeve component is arranged outside the core shaft body in a sleeving mode, and the air supply head is arranged on the outer sleeve component; an annular flow channel is formed between the core shaft body and the outer sleeve component; an extrusion opening for extruding glue is formed in the lower end of the core shaft body; a plurality of drainage grooves are symmetrically formed in the center of the outer circle face of the core shaft body; the drainage grooves deviate towards the same circumferential direction of the core shaft body from top to bottom; and the lower ends of the drainage grooves are distributed around the extrusion opening in the circumferential direction so as to guide high-pressure airflow to flow to form spiral airflow. According to the spiral glue-shaped gluing nozzle, the spiral air flow is formed through guiding of the multiple spiral drainage grooves, so that the extruded glue is driven to form a spiral shape; reasonable space distribution of the glue is achieved through the spiral gluing technology; the glue is extruded after two to-be-bonded parts make contact, and the glue is filled into a glue-free gap between spiral line; the whole bonding space is filled with the glue; and therefore, the bonding effect is improved, and the bonding strength is improved.

Description

technical field [0001] The invention relates to the technical field of gluing, in particular to a spiral glue-shaped gluing nozzle. Background technique [0002] In automobile manufacturing, a large number of gluing processes are used to realize the connection of various parts. In the existing gluing process, a gluing valve is usually used for gluing. The outlet of the gluing valve is a cylindrical or elliptical cylindrical structure. , so the shape of the glue application can only form a cylindrical straight line or an elliptical straight line. Due to the single distribution structure of the glue in this glue application method, it is difficult to control the amount of glue applied to make the glue filled reasonably, so it is easy to cause glue overflow caused by excessive glue application , or insufficient bonding strength due to too little glue application, especially in the application process of hemming glue, the existing gluing valve is difficult to meet the use requir...

AI Technical Summary

Problems solved by technology

[0002] In automobile manufacturing, a large number of gluing processes are used to realize the connection of various parts. In the existing gluing process, a gluing valve is usually used for gluing. The outlet of the gluing valve is a cylindrical or elliptical cylindrical structure. , so the shape of the glue application can only form a cylindrical straight line or an elliptical straight line. Due to the single distribution structure of the glue in this glue application method, it is difficult to control the amount of glue applied to make the glue filled reasonably, so it is easy to cause glue overflow caused by excessive glue application , or insufficient bonding strength due to too little glue application, especially for the hemming glue coating process, the existing glue valve is difficult to meet the use requirements of hemming glue coating

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