70results about How to "Uniform amount of glue" patented technology

The invention discloses a method for producing eucalyptus wood plywood by adopting insect-proof and mildew-proof composite urea formaldehyde resin. The method comprises the following steps of: wood slab rotating, veneer drying, gluing, tertiary cold-pressing, standing and maintaining, tertiary hot-pressing, radiating and maintaining, and slab fixed-thickness sanding. The key point of the production method is that insect-proof and mildew-proof composite urea formaldehyde resin, which is prepared by taking melamine modified urea formaldehyde resin as an adhesive main ingredient, adding oxidized starch as a viscous complexing agent, taking polyvinyl alcohol as a flexibilizer, taking hydrogenated rosin as an antioxidant, taking polyisocyanate as a curing agent, taking triethoxyisobutylsilane as a bridging agent, taking phenolation lignin as a formaldehyde catching agent and adding an insect-proof and mildew-proof agent, is adopted. Solid wood composite floor produced by adopting the insect-proof and mildew-proof composite urea formaldehyde resin has the advantages of low formaldehyde residual amount and good insect-proof and mildew-proof effect, has relatively strong inhibiting effect on breeding of aspergillus, trichoderma and blue mould, and has instantaneous kill-down capacity and long-acting prevention effect on powder post beetles of wood slab.

The invention discloses a novel single facer glue spreading roller. The novel single facer glue spreading roller comprises a hollowed cylinder, and shaft heads fixedly and tightly connected with the two ends of the cylinder, wherein the cylinder and the shaft heads are connected through shrink-fitting and welding; annular grooves are formed in the outer end surfaces of the shaft heads; liquid injecting holes are evenly distributed in the grooves; a closed hollow liner is arranged in the cylinder; the two ends of the liner are fixedly connected with the inner wall of the cylinder through annular pipe plates; inner rings of the annular pipe plates are arranged around the liner, and are fixedly welded with the surface of the liner; through holes are evenly distributed in the circular surfaces of the annular pipe plates; the length and the end surface diameter of the liner are both smaller than the length and the end surface diameter of the cylinder; and a liquid injecting space is formed between the outer wall of the liner and the inner wall of the cylinder. The novel single facer glue spreading roller has the following beneficial effects: (1) the surface temperature of the glue spreading roller is uniform to reduce the friction with a corrugated roller; (2) the service lives of the corrugated roller and the gluing roller are prolonged; the spread of glue is uniform; and the paperboard quality is high; and (3) the replacement frequency of glue in a glue tray is largely reduced, so that the cost is decreased.

Fully automatic gluing machine for sheet materials, including a feeder, a host, a discharge turning device, and a computer control system. The feeder includes a conveying wheel and a pressure wheel placed above the conveying wheel. It is characterized in that the host The frame, the conveying part, also includes a multi-degree-of-freedom glue spraying assembly connected to the frame that can move laterally and rotate with a fixed axis, and a squeegee assembly that can move vertically on the frame. The host part is also equipped with sensor The sensing element b of the plate position, the discharge turning device is connected with the conveying part, and the computer control system is electrically connected with the feeder, the host and the discharging turning device for motion detection and control. The present invention can complete the board gluing process without manual operation, fully automatic feed gluing, scraping, and automatic plate turning, and can ensure that the amount of glue applied to each batch of boards is uniform and appropriate while completing the gluing work quickly and automatically , squeegee evenly; and the equipment can be applied to a variety of boards of different sizes.