Four-color press
A technology for printing presses and offset printing units, applied in printing presses, rotary printing presses, printing, etc., which can solve problems such as complex structures, increased product scrap rates, and inability to stop in time
Inactive Publication Date: 2015-09-16
温州顺威包装有限公司
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Problems solved by technology
However, the existing four-color printing machine includes four sets of color groups, and the color groups are connected by paper transfer rollers. After printing, drying components must be used to dry the printed items. The structure is complex, and during the winding process , when the winding is stopped, it cannot be stopped in time, resulting in the situation of pulling the material, which increases the scrap rate of the product
Method used
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[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0026] Such as figure 1 — Figure 10 As shown, the present invention discloses a four-color printing machine, including a machine body 20, an unwinding device 21, a leveling device 22, a synchronous feeding device 23, an offset printing unit 24, and a winding device 25. The offset printing unit 24 includes four groups of color groups 241 Each color group 241 is connected by a paper transfer cylinder 27, and the two axial ends of the paper transfer cylinder 27 are ...
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The invention relates to a four-color press. The four-color press comprises a press body, an unwinding device, a smoothening device, a synchronous feeding device, an offset printing unit and a winding device. The offset printing unit comprises four color groups connected through paper transmission barrels, two ends of each paper transmission barrel are axially provided with rotating blocks in rotatable connection with the press body, each paper transmission barrel is hollow internally to form an air storage cavity, and two axial ends of each rotating block are provided with a first air port and a second air port respectively to communicate with the air storage cavity. The first air port of the outmost rotating block is communicated with a steam generator through a pipeline, the second air ports of each two adjacent rotating blocks are communicated through a pipeline, the first air ports of each two adjacent rotating blocks are communicated through a pipeline, and the second air port of the innermost rotating block is connected with an exhaust valve. The four-color press has the advantages that each paper transmission barrel is internally filled with steam for effectively heating the outer wall of the corresponding paper transmission barrel, and drying of printed materials is facilitated.
Description
technical field [0001] The invention relates to the mechanical field, in particular to a four-color printing machine. Background technique [0002] The four-color printing machine specifically refers to a printing machine that uses black, medium blue, brown, and green inks to realize the lithographic printing method of map reproduction. However, the existing four-color printing machine includes four sets of color groups, and the color groups are connected by paper transfer rollers. After printing, drying components must be used to dry the printed items. The structure is complex, and during the winding process , Can not stop in time when stopping winding, causes the situation of pulling material to exist, has improved the rejection rate of product. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a four-color printing machine which is convenient for drying printed articles and has a simple str...
Claims
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Inventor 胡胜克陈聪颖季国良周晓光徐飞朋敬汉林
Owner 温州顺威包装有限公司