Seamless laser film stencil press roller

Abstract

The invention relates to a seamless laser film stencil press roller, belonging to the technical field of holographic laser hard pressing transfer film equipment. The stencil press roller of the invention comprises a press roller, a part for installing a stencil on the press roller, blank caps at two ends of the press roller, shafts at two ends of the press roller and a hot oil pore path of the press roller, and is characterized in that two parallel gaps are longitudinally arranged on the part for installing the stencil on the press roller; a pair of clamping plates for clamping the head and the tail of the stencil are respectively arranged at the two gaps; two and more than two clamping bolts are installed on each clamping plate; the thicknesses of the clamping plates and the clamping bolts are not higher than that of the outer circular arc of the part for installing the stencil on the press roller; stencil tightness adjusting devices are arranged on the part for installing the stencil on the press roller and the clamping plates; and a cold oil pore path is arranged abutting to two ends for installing the stencil on the part for installing the stencil on the press roller, i.e. abutting to the clamping plates. By using the press roller of the invention for machining a laser packing film, the laser packing film can be seamless, thereby greatly improving the utilization ratio of the laser packing film and saving the raw materials; and a situation that an overlong laser packing film is used can be seamless, thus achieving an esthetic effect.

Description

technical field [0001] The invention belongs to the technical field of holographic laser hard press transfer film equipment, and in particular relates to a seamless laser film pressing roller. Background technique [0002] The existing hard press laser equipment can only emboss the laser packaging film with slits. The laser packaging film is also called laser holographic grating packaging film. 200720053172.0 "Fixed-length alignment molding device in holographic laser hard pressing transfer film equipment", the laser packaging film produced by it has a seam, although the seam is relatively small, but the structure is complicated, and it is necessary to add a An automatic adjustment mechanism consisting of a length sensor and a vertical drive. At present, the most advanced hard-press laser equipment at home and abroad processes the laser packaging film, and the plate seam can only be controlled at about 0.5-0.8 mm. The reason why the existing technology cannot produce seaml...

AI Technical Summary

Problems solved by technology

The reason why the existing technology cannot produce seamless laser packaging film is that the technology of laser stencil film pressing roller has not been greatly improved, and its existing disadvantages are that the installation of the stencil film is to insert its two ends into the stencil film installation seam , so it is difficult to adjust the tightness of the plate film, and the second is that the pressure roller only has hot oil channels, so the surface temperature of the pressure roller is the same everywhere, and the temperature cannot be adjusted according to the requirements of different imprints

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