A continuous coating device for viscous materials

Abstract

The invention discloses a continuous coating device for viscous materials. The continuous coating device comprises a control unit, an unreeling unit, a coating and printing unit and a follow-up unit.The unreeling unit, the coating and printing unit and the follow-up unit are arranged along the movement direction of a base material sequentially. The coating and printing unit comprises a compression roller, a drive silica gel roller and a drive steel roller which are stacked from top to bottom. The drive steel roller is soaked in a colloid tank filled with the viscous materials. The base material is arranged between the compression roller and the drive silica gel roller, is supported on a support roller, and moves along the direction of centrifugal force of the upper vertex of the drive silica gel roller under power traction to transfer a colloid film to the surface of the base material. The continuous coating device has the advantages that the viscous materials are extruded, pulled andextended by the two rollers at different speeds and in different directions to form a colloid surface with a certain thickness on the surface of a rubber roller, and are transferred to the surface ofthe continuously-fed base material by the compression roller to form a thin uniform coating, so that uniform coating of materials with micron-order and submicron-order thickness and more thinner materials on the surface of the base material is realized.

Description

technical field [0001] The invention belongs to the technical field of printing machinery, and in particular relates to a device for spraying a thin layer of viscous material on a base material. Background technique [0002] Coating machines are widely used in the tobacco industry, packaging industry and energy manufacturing industry. In these industries, hot melt adhesive or other liquid viscous materials need to be sprayed onto the substrate or the surface of the substrate, and combined with subsequent processes to achieve moisture-proof or Manufacture the pole pieces of the battery. According to the process and product quality requirements, it is necessary to spray a thin and uniform layer of colloid on the surface of the rolled substrate material. For example, high-end environmentally friendly cigarettes in the tobacco industry often use polyethylene film coated with a thin layer of hot melt adhesive to replace aluminum foil to prevent moisture and meet organic environm...

AI Technical Summary

Problems solved by technology

However, this process is an improved deformation of the conventional process, which cannot achieve uniform coating of the thin surface adhesive layer, and is difficult to meet special application requirements.

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