Multi-purpose pressing mechanism for single-piece printing material surface treatment equipment

Abstract

The invention provides a multi-purpose pressing mechanism for single-piece printing material surface treatment equipment. The invention aims to solve the problem that the shaking phenomenon of the printing material easily occurs also as to cause air bubbles on the treatment surface of the printing material, the problem that inaccurate positioning transfer and microscopically unsmooth surface of the printing material are easily caused during local surface treatment, the problem that because paper griping tooth is higher than the roller surface of a roller, an upper pressing roller is caused to jump, and other problems existing in the prior art of the same kind. The key points of the technical scheme include: the multi-purpose pressing mechanism comprises upper and lower pressing rollers which are in mutually pressed fit, a pressing film is arranged on the lower side surface of the upper pressing roller, and the printing material is attached to the pressing film under the pressing action of the pressing mechanism; and the pressing mechanism is characterized in that: the lower pressing roller is provided with a roller groove, a paper-gripping mechanism is arranged in the roller groove, the front end part of the paper-gripping tooth is in pressing-gripping fit with the roller surface from the side of the roller groove, the fit part between the roller surface and the front end part of the paper-gripping tooth is an inclined area, and the top part of the paper-gripping tooth is lower than the roller surface when the front end part of the paper-gripping tooth is in a paper-gripping state, so that the whole paper-gripping mechanism is lower than the roller surface in a paper-gripping state.

Description

technical field [0001] The present invention relates to a working mechanism of printing equipment, in particular to a single-purpose device or multi-purpose device for surface treatment of single-sheet printing materials, such as laser pattern embossing transfer, metal foil cold stamping embossing transfer, calendering, and film coating. The general-purpose pressing mechanism on the. Background technique [0002] Making laser patterns on printing materials, as an intuitive anti-counterfeiting pattern that consumers can easily identify, is also a new type of decorative pattern, which has been widely used in the packaging and printing industries for a long time. In recent years, the laser pattern imprint transfer process that uses laser film to press and form on UV-curable varnish, then solidifies and shapes, and then peels off the laser film is like the leaflet of Chinese Patent No. 200420071245.5 developed by the applicant and previously applied for The printing material la...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the phenomenon that the printing material shakes easily in the pressing mechanism of the existing similar sheet-fed printing material surface treatment equipment, resulting in air bubbles on the surface of the printing material, and the local surface treatment is prone to inaccurate positioning and transfer and the microscopic unevenness of the surface of the printing material, or The teeth of the paper bite are higher than the surface of the cylinder, causing defects such as jumping of the upper pressing roller. The purpose of the present invention is to provide an improved multi-purpose pressing mechanism for sheet-fed printing material surface treatment equipment, which can overcome the defects of the prior art

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