Countercurrent suspension type oven

Abstract

The invention discloses a countercurrent suspension type oven, relates to printing equipment and coating machine and laminating machine equipment, and mainly relates to a countercurrent suspension type oven of a photogravure press. The countercurrent suspension type oven comprises two parts including a left half oven and a right half oven, wherein the left half oven and the right half oven are integrally folded relatively during operation, and a printing film passes through a gap between the two half ovens; the left half oven structurally comprises a main air inlet pipe and a main exhaust pipe, a middle air inlet pipe and two side exhaust pipes are arranged inside, and a blowpipe air chipper, an air deflector and an exhaust gas diversion pipe which are engaged to each other are arranged inthe innermost position; and the right half oven structurally comprises a main air inlet pipe and a main exhaust pipe, a middle air inlet pipe and two side exhaust pipes are arranged inside, and a suspension air pipe, a top suspension support plate and an air nozzle which are engaged to each other are arranged in the innermost position. The countercurrent suspension type oven has the beneficial effects that the printing film is in suspension and cannot shake under the combined action of the air chipper and the air deflector of the left half oven as well as the suspension air pipe and the suspension support plate of the right half oven, so that the overprint of the press is accurate, and the front and back sides of the printing film are blown at the same time, so that the drying efficiencyis greatly improved.

Description

Technical field: [0001] The present invention relates to printing technology equipment, coating machine and composite machine equipment, mainly relates to gravure printing machine, especially relates to the countercurrent suspension oven of gravure printing machine. Background technique: [0002] The existing gravure printing machine oven is a traditional single-sided air blowing old-fashioned oven, which has many defects: First, it is a single-sided direct blowing oven with an air shovel, and the air shovel and the printing film are blown at 90 degrees, and the blowing pipe is parallel to the exhaust pipe After being blocked by the printing film, the drying air disperses in two directions up and down, and part of it flows upwards following the printing film. Because it is at the same speed as the printing film, it is relatively static and does not generate mutual friction, so it is discharged without drying. The air duct is removed. The drying air flowing downwards contact...

AI Technical Summary

Problems solved by technology

[0002] The existing gravure printing machine oven is a traditional single-sided air blowing old-fashioned oven, which has many defects: First, it is a single-sided direct blowing oven with an air shovel, and the air shovel and the printing film are blown at 90 degrees, and the blowing pipe is parallel to the exhaust pipe After being blocked by the printing film, the drying air disperses in two directions up and down, and part of it flows upwards following the printing film. Because it is at the same speed as the printing film, it is relatively static and does not generate mutual friction, so it is discharged without drying. Duct extraction

The drying air that flows downwards is in contact with the printing film and is sucked away by the exhaust pipe. Since the oven is always operating under a slight negative pressure, the contact area between the drying air and the printing film is small and the drying efficiency is low.

Second, the traditional oven is blown on one side, and the printing film shakes seriously, resulting in large overprint errors

Third, because the printing film is blown and dried on one side, the ink dries slowly and the efficiency is low, and anti-sticking often occurs

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