CN202123794U - Novel stereoscopic stamping machine - Google Patents

Abstract

The utility model provides a stereoscopic stamping machine which comprises a female die intaglio plate fixed on a honeycomb plate of the stamping machine, and a male die relief plate fixed on a bottom steel plate of the stamping machine, wherein a protective layer capable of covering the surface of the relief plate is arranged on the male die relief plate; and the protective layer is a plastic film which is 0.125-0.35mm in thickness and does not deform at the temperature of 70-100 DEGC. For the stereoscopic stamping machine, the structure of the original stamping machine is not required to be changed; under the condition that the quality of a printed matter is not affected, the abrasion of paper on the male die relief plate is reduced to the greatest extent, so that the stamping of each set of male die relief plate is increased in paper sheet to 1,500,000 from original 150,000-200,000; the service life of the male die relief plate is greatly prolonged; much plate correction time is saved; and the stereoscopic stamping machine has the economical effects that the cost is saved, and the efficiency is improved.

Description

A new type of three-dimensional bronzing machine

technical field

The utility model relates to post-press processing equipment, in particular to a bronzing machine, and more particularly to a novel three-dimensional bronzing machine capable of simultaneously performing bronzing and concave-convex embossing.

Background technique

Three-dimensional bronzing technology is a composite technology combining bronzing technology and concave-convex embossing technology. It uses corrosion or engraving technology to make bronzing and embossed graphics and texts into a female intaglio and male relief that match up and down to achieve bronzing and embossing. Concave-convex embossing technology is a one-time process. The existing three-dimensional hot stamping machine includes a female intaglio plate fixed on the honeycomb plate of the hot stamping machine and a male relief plate fixed on the bottom steel plate of the hot stamping machine. The female intaglio plate is a hot stamping plate and uses high-quality copper with good heat transfer performance as the plate. The convex plate of the male mold corresponds to the hot stamping plate, that is, the concave part of the hot stamping plate should be raised on the male mold, and the height of the protrusion corresponds to the concave depth of the hot stamping plate. In order to make the anodized aluminum foil and paper fit better in the process of hot embossing, the male letterpress usually uses a resin with certain elasticity as the plate material. In the production of cigarette labels, due to the small size of the hot embossed text, and in order to reduce the cost, the paper used is of lower grade and the paper has more fillers. The paper is easy to wear the resin letterpress during the hot embossing and moving process, resulting in The service life of the resin letterpress is short, and generally 150,000 to 200,000 sheets of hot stamping need to be replaced once, while the cost of a set of resin letterpress is 2,000-3,000 yuan, which not only increases the production cost, but also increases a lot of proofreading time.

Contents of the invention

In order to solve the above existing problems, the purpose of this utility model is to provide a new type of three-dimensional hot stamping machine, which can reduce the wear of the positive plate of the male mold during the hot stamping process.

In order to achieve the above object, the three-dimensional hot stamping machine of the present utility model comprises a female die intaglio plate fixed on the honeycomb plate of the hot stamping machine and a male relief plate fixed on the bottom steel plate of the hot stamping machine, and is characterized in that: the male relief plate is provided with a A protective layer covering the letterpress printing surface, the protective layer is a plastic film with a thickness of 0.125mm-0.35mm and no deformation at a temperature of 70-100°C.

Since the bottom steel plate of the hot stamping die-cutting machine is also provided with other templates, and the relief plates of the positive mold are arranged in rows on the bottom steel plate, the above-mentioned plastic films are several strips of plastic films covered along the arrangement direction of the relief plates of the positive mold.

In order to facilitate regular replacement, the two ends of the strip-shaped plastic film are fixed on both sides of the bottom steel plate.

Since the plastic film will be affected by heat and pressure during the hot embossing process, the selected plastic film must have good performance, that is, puncture resistance, friction resistance, temperature resistance and chemical resistance. The above plastic film is preferably polyester film.

Since there are a large number of discarded anodized aluminum base films with a small amount of aluminized layer in the bronzing process, although the temperature of hot stamping is 150-160 ° C, the temperature transferred to the plastic film after passing through the paper is only 70-80 ° C, so in hot stamping During the embossing process, a small amount of aluminized layer on the waste anodized aluminum base film will not detach from the base film and contaminate the layout of the resin relief, and the aluminized layer is extremely thin, which basically does not affect the thickness of the base film. Utilization and cost saving, the above-mentioned plastic film preferably adopts the waste anodized aluminum base film after bronzing.

In the three-dimensional bronzing machine of the utility model, a protective layer that can cover the surface of the relief plate is arranged on the convex plate of the male mold. The protective layer is a plastic film that is only a few tenths of a millimeter thick and does not deform under the temperature and pressure of hot embossing. , the film can avoid the direct contact between the printed paper and the positive plate, and can clearly transfer the pattern or text on the positive plate to the printing paper, so that it will not affect the quality of the printed matter, and can maximize the Reduce the wear of the paper on the positive plate, greatly prolong the service life of the positive plate, and save a lot of time for proofreading. The three-dimensional hot stamping machine of the utility model does not need to change the structure of the original hot stamping machine. By regularly replacing the plastic film, each set of male relief can be increased from 150,000 to 200,000 sheets to 1,500,000 sheets now. Zhang above, greatly saving costs.

Description of drawings

Accompanying drawing 1 is the structural representation of the three-dimensional bronzing machine of the present utility model.

Accompanying drawing 2 is the structure schematic diagram of the bottom steel plate of the three-dimensional bronzing machine of the present invention.

Detailed ways

As shown in Figures 1 and 2, the three-dimensional bronzing machine of the present utility model includes a honeycomb plate 1 positioned at the upper part of the body and a bottom steel plate 2 positioned at the bottom of the body. The male relief plate 21 made of resin material is fixed on the top, the honeycomb plate is connected with a heating power supply, and is connected with the lifting mechanism of the bronzing machine, the male relief plate on the bottom steel plate is arranged in several rows along the width direction of the bottom steel plate, each row of positive The layout of the mold relief plate is covered with a strip-shaped PET film 22, the width of this PET film is larger than the width of the positive mold relief plate, and the two ends are fixed on the two sides of the bottom steel plate.

During hot stamping, the aluminum foil 3 is located under the female gravure 11, the printing paper 4 is located under the aluminum foil, and the PET film 22 is between the paper and the male relief plate 21. The honeycomb plate is energized to generate heat and move down Under pressure, the female intaglio and the male relief are closely matched, the aluminized layer on the bottom of the anodized aluminum foil is transferred to the surface of the paper, and the male relief embosses the pattern or text on the paper through the PET film. During the printing process, it will be affected by heat and pressure, so hot embossing needs to be replaced after a certain period of time. If it is produced continuously, it is generally replaced every 24-30 hours.

The above-mentioned PET film can also use an anodized aluminum base film that also contains a small amount of aluminum plating after hot stamping. ℃, this temperature can not make the aluminized layer detached from the base film and contaminate the letterpress layout, so using the waste anodized aluminum film after hot stamping as the protective layer of the positive mold letterpress and replacing it regularly is the most ideal solution . the

Claims (5)

1. novel solid gilding press; Formpiston relief printing plate at the bottom of comprising the former intaglio plate that is fixed on the gilding press cellular board and being fixed in gilding press on the steel plate; It is characterized in that: said formpiston relief printing plate is provided with the protective layer that can the relief printing plate space of a whole page be covered, and this protective layer is that thickness is 0.125mm-0.35mm and is the plastic sheeting that deformation does not take place under 70-100 ℃ in temperature.

2. novel gilding press according to claim 1 is characterized in that: some the strip plastic sheetings of said plastic sheeting for covering along the orientation of formpiston relief printing plate.

3. novel gilding press according to claim 3 is characterized in that: the dual-side of end steel plate is fixed at the two ends of said strip plastic sheeting.

4. novel gilding press according to claim 3 is characterized in that: said plastic sheeting is a polyester film.

5. novel gilding press according to claim 3 is characterized in that: said plastic sheeting is the discarded electrochemical aluminum-based film after gold stamping.

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