Stock bin hot sealing and pressing device for hot melting glue sheet

Abstract

The invention discloses a stock bin hot sealing and pressing device for a hot melting glue sheet, and belongs to the technical field of hot melting glue sheets. The stock bin hot sealing and pressingdevice comprises a glue sheet stock bin, and L-shaped baffles are vertically and evenly welded to the side wall of an inner cavity of the glue sheet stock bin. Discharging ports are evenly formed in the bottom of the inner cavity of the glue sheet stock bin. Discharging pipes are vertically mounted in inner cavities of the discharging ports, and the bottom ends of the discharging pipes are arranged below the glue sheet stock bin. A stirring motor is mounted in the middle of the top of the glue sheet stock bin, and an output shaft of the stirring motor penetrates through the bottom of the gluesheet stock bin. According to the stock bin hot sealing and pressing device, a pressing end cover is placed in the inner cavity of the glue sheet stock bin, and therefore the pressing end cover can bepressed and move along the descending of glue in the glue sheet stock bin under the mutual cooperation of the L-shaped baffles and a U-shaped clamping groove, and an electric heating pipe can be located in the glue of the inner cavity of the glue sheet stock bin all the time; and the phenomenon of drying and burning out of the heating pipe caused by descending of the glue is avoided, and the service life of the electric heating pipe is guaranteed.

Description

technical field [0001] The invention relates to the technical field of hot-melt adhesive sheets, in particular to a silo heat-sealing pressing device for hot-melt adhesive sheets. Background technique [0002] The basic resin of hot melt adhesive is the copolymerization of ethylene and vinyl acetate under high temperature and pressure, that is, EVA resin. This kind of resin is the main component of making hot melt adhesive. The proportion and quality of the basic resin determine the basic performance of hot melt adhesive (such as adhesive bonding ability, melting temperature and bonding strength). Generally, the VA content is 18-33. Melt index (MI) 6-800, VA content is low, the higher the crystallinity, the hardness increases. Under the same circumstances, the VA content is larger, the crystallinity is low, and the elasticity increases. The choice of EVA melt index is also very important. The smaller the melt index, the poorer the fluidity High strength, high melting temper...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a silo heat-sealing and pressing device for hot-melt adhesive sheets, to solve the problem that the existing heating and pressing end caps for hot-melt adhesive silos are usually fixed on the silo As the colloid in the silo drops, the top of the heating tube is in a dry burning state, causing the problem of burning out of the heating tube

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