Composite packaging material used for healthy tea sealed package

Abstract

The invention discloses a composite packaging material used for healthy tea sealed package. The composite packaging material solves the technical problem that in the prior art, a composite packaging material is poor in pulling strength and heat seal strength through attaching of a heat seal layer, a first graphene layer, an aluminum foil layer, a second graphene layer, a first bonding layer, a brown paper layer, a second bonding layer, a thin film layer and a printing layer. A first motor output shaft drives a discharging screw to rotate, the discharging screw mixes a pre-mixture and extrudesthe pre-mixture out of the bottom of a discharging cylinder, the extruded pre-mixture enters an inner cavity of a coating box, a third air cylinder piston rod shrinks to drive a hydraulic rod to descend, the hydraulic rod drives the discharging cylinder to descend through a cylinder sleeve, the discharging cylinder drives a down pressing plate to descend, the down pressing plate extrudes the pre-mixture in the coating box downwards to the surface of a coating roller, a third motor output shaft drives a supporting roller to rotate, the supporting roller drives a first transmission roller and asecond transmission roller to rotate through a coating belt, and in the rotating process of the coating roller, a uniform spreading belt uniformly spreads the pre-mixture on the surface of the coatingroller.

Description

technical field [0001] The invention relates to the technical field of composite packaging materials, in particular to a composite packaging material used for hermetic packaging of health-preserving tea. Background technique [0002] On the basis of the development of the packaging industry, the packaging of articles has also been developed accordingly. From simple paper packaging, to single-layer plastic film packaging, to the widespread use of composite materials. Composite packaging materials can make the contents of the packaging have the characteristics of moisturizing, fragrance preservation, appearance, freshness, light protection, penetration prevention, and extended shelf life, so they have developed rapidly. [0003] The patent document (CN201510988101.9) discloses a preparation method of a multi-layer composite polymer packaging material, which uses the oil resistance, corrosion resistance and blocking properties of the modified PET layer to further strengthen th...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a composite packaging material for hermetic packaging of health-preserving tea, which solves the following technical problems: (1) through the heat-sealing layer, the first graphene layer, the aluminum foil layer, the second graphene layer, the first adhesive The joint layer, the kraft paper layer, the second adhesive layer, the film layer and the printing layer are attached to each other, and the prepared composite packaging material for the hermetic packaging of health tea is measured according to GB / T 21568-2008, and the breaking force is 129- 143N / 15mm, according to GB / T 22638.7-2016, the measured heat seal strength is 83-85N / 50mm, which solves the technical problems of insufficient tensile strength and heat seal strength of composite packaging materials in the prior art; (2) through the first cylinder The piston rod pushes down the lifting bearing seat, and the lifting bearing seat moves down along the through groove on the upright plate. The two lifting bearing seats drive the first transmission roller to move downward, and at the same time, the piston rod of the second cylinder on the fixed seat passes through the mounting block. Drive the installation shell to move down, the installation shell drives the coating box to move down, the coating box drives the coating roller in the inner cavity to move down, the lower surface of the coating roller contacts the coating belt on the upper surface of the second transmission roller, and at the same time The coating belt at the bottom of the drive roller contacts the upper surface of the support roller, and the coating belt can be raised and lowered by this setting, which solves the technical problem that the aluminum foil layer is not easy to put in when coating, and is difficult to coat at the same time; (3) through The output shaft of the first motor drives the unloading screw to rotate. The unloading screw mixes the premix and extrudes it from the bottom of the discharge barrel. The extruded premix enters the inner cavity of the coating box, and the third cylinder piston rod shrinks to drive the hydraulic rod. Down, the hydraulic rod drives the discharge barrel down through the barrel sleeve, the discharge barrel drives the lower platen down, the lower platen presses the premix in the coating box down to the surface of the coating roller, and the output shaft of the third motor drives the support roller Rotate, the support roller drives the first driving roller and the second driving roller to rotate through the coating belt, and at the same time the coating belt drives the coating roller to rotate, and the smoothing belt evenly spreads the premix on the surface of the coating roller during the rotation of the coating roller At the same time, the coating roller coats the premix on the surface to the surface of the coating belt, and then the coating belt coats the premix to the upper surface of the aluminum foil, and at the same time, the support roller drives the coated aluminum foil layer to discharge to the other side The direction of the plate moves, solving the technical problems in the prior art that the coating is easy to block the coating channel before coating, and the coating effect of the coating is not good; (4) The output shaft of the second motor drives the screw to rotate, and the screw Cooperate with the nut to drive the lifting plate down, and at the same time drive the rod cover to extend the vertical rod down, and then the lifting plate drives the scrapers on both sides of the bottom to go down, and the scraper scrapes the surface of the coated aluminum foil layer on the discharge plate twice before and after. Solve the technical problem that the surface of the aluminum foil layer is prone to uneven coating after the coating is completed in the prior art

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