Synchronous plate gap averter for several rolls of laser thermoprinted film on the same shaft

Abstract

The synchronous plate gap averter for several rolls of laser thermoprinted film on the same shaft includes one unwinding shaft, one drawing shaft and one optoelectronic sensor, and features the unwinding shaft transition device, which is on the unwinding shaft and has at least two rolls of laser thermoprinting film. All the laser holographic thermoprinting jobs may be completed in once operation, and this results in high production efficiency and low cost.

Description

technical field [0001] The invention relates to a one-axis multi-volume laser hot stamping film synchronous plate seam avoidance device. Background technique [0002] In the printing industry, the use of laser hot stamping films is becoming more and more widespread, especially in the cigarette pack printing industry. When using the laser film, there is a seam in the laser hot stamping film, but the laser seam cannot be eliminated in the laser industry all over the world. Only the automatic avoiding the seam or not avoiding the seam is used on the hot stamping machine of the post-press process to scrap the product There are two ways to reduce the yield to solve the seam problem. [0003] In the cigarette pack printing industry, at least one pattern or text needs to be hot-stamped on a cigarette pack, and many patterns or text need to be hot-stamped after imposition, using the most advanced hot-stamping equipment (such as figure 1 Shown) production, only 3 laser hot stamping...

AI Technical Summary

Problems solved by technology

When using the laser film, there is a seam in the laser hot stamping film, but the laser seam cannot be eliminated in the laser industry all over the world. Only the automatic avoiding the seam or not avoiding the seam is used on the hot stamping machine of the post-press process to scrap the product Two ways to reduce the yield to solve the seam problem

[0003] In the cigarette pack printing industry, at least one pattern or text needs to be hot-stamped on a cigarette pack, and many patterns or text need to be hot-stamped after imposition, using the most advanced hot-stamping equipment (such as figure 1 Shown) production, only 3 laser hot stamping films that need to avoid plate seams can be installed at the same time, so it takes 3 or more times to complete the hot stamping of cigarette packs, which greatly increases the production cost and reduces the production efficiency. Printing manufacturers cause huge economic losses and waste of time

[0004] The reason is that the existing equipment itself has only 3 axes that use photoelectric tracking, and the computer sets the program to skip the seam

And because of the limitation of the space position of the equipment, it is impossible to increase the automatic axis, so that the production can only be divided into multiple times to meet the needs of the product

[0005] For the hot stamping equipment described in Chinese patent document CN1709697 "Film feeding method of laser hot stamping film in hot stamping process", the laser hot stamping film can only have 3 rolls, so in many cases, it needs 3 or more times to complete the hot stamping Printing, which greatly increases production costs and reduces production efficiency, and repeated hot stamping will also lead to a decline in yield

At present, no company in the printing industry can complete hot stamping at one time

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