Hot-melting jig

Abstract

The invention discloses a hot-melting jig. The hot-melting jig comprises a fixed seat and a plurality of hot-melting columns connected with the fixed seat, wherein the lower ends of the hot-melting columns are melting heads; a hot-melting sleeve is arranged right below each melting head; the upper end and the lower end of the hot-melting sleeve are opened hollow column bodies; the hot-melting sleeves are positioned at the peripheries of the melting heads, can be sheathed at the peripheries of melting columns of a melting piece, and are provided with movable connecting rods and springs; the springs are fixed on the fixed seat; and the upper ends of the movable connecting rods are connected with the lower ends of the springs, and the lower ends of the movable connecting rods are connected with the hot-melting sleeves. The hot-melting jig disclosed by the invention has the beneficial effects that when the hot-melting jig presses downwards, firstly the hot-melting sleeves press downwards to wrap the peripheries of the melting columns of the melting piece, then the hot-melting columns press downwards to laminate the melting columns, and since the peripheries of the melting columns are firstly wrapped by the hot-melting sleeves before hot melting, the heating deformation and expansion generated by the melting columns when the hot-melting columns press downwards can be set, so that the hot-melting glue can be effectively prevented from overflowing, the shape of a melted product is regular and attractive, and further the production yield and the production efficiency are increased.

Description

technical field [0001] The invention designs a hot-melt jig, in particular to a hot-melt jig capable of preventing hot-melt glue from overflowing. Background technique [0002] Hot melting is to weld a fixing part A to a body B. The fixing part and the body can be called welding parts, wherein, the fixing part is generally provided with a number of through holes, and the body is correspondingly provided with a number of welding parts for welding. Column B1, these welding columns on the body are passed through these through holes on the fixing piece, and the welding columns on the body are melted into hot melt adhesive through the hot melt jig C, and the melted hot melt adhesive will cover the fixing piece The through hole and the periphery of the through hole will form a covering layer when the hot melt adhesive is cured. At this time, the fixing part is clamped between the covering layer and the body, so as to achieve the purpose of welding the fixing part to the body. [...

AI Technical Summary

Problems solved by technology

[0003] However, the structure of the hot-melt jig in the prior art is relatively simple. Generally, a number of hot-melt columns C2 are connected to a fixed seat C1. For the welding column, the hot melt adhesive tends to overflow to the periphery during hot melting, resulting in irregular shape and unsightly appearance of the final covering layer, which requires frequent machine debugging and improvement, thus affecting production efficiency

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