A paper transmission mechanism for a sheet-fed gravure printing machine

Abstract

The present invention provides a paper transmission mechanism of a sheet-fed gravure printing machine, comprising a printing body and a drying body which are arranged in sequence, a paper receiving roller is arranged in the printing body, a paper feeding end of a paper conveying mechanism in the drying body is arranged in the drying body, a paper feeding roller is arranged between the paper feeding end of the paper feeding mechanism and the paper receiving roller in the printing body, and is used to convey the paper of the paper receiving roller to the paper feeding mechanism, at least one paper feeding roller is arranged at the paper feeding end of the drying body, and a paper feeding roller opening matching the size of the corresponding paper feeding roller is opened at the paper feeding end of the drying body. This is to solve the problems that the existing transmission mechanism is unreasonable in design, hot air may enter the printing unit to cause dry plate and blockage, etc. It belongs to the field of gravure printing technology.

Description

Technical Field

[0001] The invention relates to a paper transmission mechanism of a sheet-fed gravure printing machine, belonging to the technical field of gravure printing. Background Art

[0002] At present, after printing, since the dryer and the printing unit are an integrated structure, one end of the paper conveying mechanism in the dryer extends into the printing unit, and the paper is directly conveyed to the dryer through the conveying mechanism. During use, the hot air in the dryer will flow into the printing unit, drying the printing plate / roller, causing dry plate and plate blockage, and the plate needs to be washed every time the machine is stopped, affecting printing efficiency and printing quality. Summary of the invention

[0003] The invention provides a paper transmission mechanism of a sheet-fed gravure printing machine, so as to solve the problems that the existing transmission mechanism is not designed reasonably, hot air may enter the printing unit to cause plate drying and plate blocking, etc.

[0004] In order to achieve the above-mentioned purpose, it is proposed to adopt a paper transmission mechanism of a single-sheet gravure printing machine, including a printing body and a drying body arranged in sequence, a paper receiving roller is arranged in the printing body, the paper feeding end of the paper conveying mechanism in the drying body is arranged in the drying body, and a paper feeding roller is arranged between the paper feeding end of the paper conveying mechanism and the paper receiving roller in the printing body, so as to convey the paper on the paper receiving roller to the paper conveying mechanism, at least one paper feeding roller is arranged at the paper feeding end of the drying body, and a paper feeding roller opening matching the size of the corresponding paper feeding roller is opened at the paper feeding end of the drying body.

[0005] In the aforementioned paper transmission mechanism, two paper feeding rollers are arranged for transmission between the paper feeding end of the paper conveying mechanism and the paper receiving roller in the printing body, and one of the paper feeding rollers is arranged at the paper feeding roller opening of the paper feeding end of the drying body.

[0006] In the aforementioned paper transmission mechanism, the gap between the paper feed roller and the paper feed roller opening at the paper feed roller opening is less than 50 mm.

[0007] In the aforementioned paper transmission mechanism, the paper receiving roller in the printing body is also provided with an embossing roller correspondingly, and the embossing roller is also provided with a printing plate roller and a paper feeding roller correspondingly.

[0008] Compared with the prior art, the present invention adds a paper feeding roller between the printing body and the drying body, and the printed paper is transported to the drying body by the paper feeding roller, and then the opening of the paper feeding end of the drying body (paper feeding roller opening) is blocked by the paper feeding roller. The hot air is isolated by the roller, and the roller is used as a paper conveyor to block the dryer port, thereby preventing the hot air in the drying body from entering the printing body and preventing the hot air from drying the printing plate / roller, effectively solving the problem of frequent plate drying and plate blocking, and can effectively improve printing efficiency and printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention;

[0010] Figure 2 This is a schematic diagram of the end face of the paper feeding end of the drying body. DETAILED DESCRIPTION

[0011] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0012] Example

[0013] Reference Figure 1 and Figure 2 The present embodiment provides a paper transmission mechanism of a sheet-fed gravure printing machine, comprising a printing body 1 and a drying body 2 which are arranged in sequence, wherein a paper receiving roller 11 is arranged in the printing body 1, and an impression roller 12 is arranged correspondingly to the paper receiving roller 11, and a plate roller 13 and a paper feeding roller 14 are arranged correspondingly to the impression roller 12, and a paper feeding end of a paper conveying mechanism 21 in the drying body 2 is arranged in the drying body 2, and a paper feeding roller 3 is arranged between the paper feeding end of the paper conveying mechanism 21 and the paper receiving roller 11 in the printing body 1, so as to convey the paper of the paper receiving roller 11 to the paper feeding mechanism 21, and a paper feeding roller opening 22 is opened at the paper feeding end of the drying body 2.

[0014] like Figure 1 As shown, two paper feeding rollers 3 are arranged between the paper feeding end of the paper feeding mechanism 21 and the paper receiving roller 11 in the printing body 1. Figure 2 As shown, one of the paper feed rollers 3 is arranged at the paper feed roller opening 22 of the paper feeding end of the drying body 2, and the gap between the paper feed roller 3 at the paper feed roller opening 22 and the paper feed roller opening 22 is less than 20 mm. If the size is appropriate, only two paper feed rollers 3 are required. If the size of the paper feed roller 3 is smaller, more paper can be added, so that the paper at the paper receiving roller 11 in the printing body 1 can be better transported to the paper transfer mechanism 21 in the drying body 2.

[0015] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A paper transmission mechanism of a sheet-fed gravure printing machine, comprising a printing body (1) and a drying body (2) arranged in sequence, wherein a paper delivery roller (11) is arranged in the printing body (1), and characterized in that: The paper feed end of the paper conveying mechanism (21) in the drying body (2) is arranged in the drying body (2); a paper feeding roller (3) is arranged between the paper feed end of the paper conveying mechanism (21) and the paper receiving roller (11) in the printing body (1) for conveying the paper on the paper receiving roller (11) to the paper conveying mechanism (21); at least one paper feeding roller (3) is arranged at the paper feed end of the drying body (2); and a paper feeding roller opening (22) matching the size of the corresponding paper feeding roller (3) is opened at the paper feed end of the drying body (2); Two paper feeding rollers (3) are arranged for transmission between the paper feeding end of the paper conveying mechanism (21) and the paper receiving roller (11) in the printing body (1), and one of the paper feeding rollers (3) is arranged at the paper feeding roller opening (22) at the paper feeding end of the drying body (2).

2. The paper transmission mechanism of a sheet-fed gravure printing machine according to claim 1, characterized in that: The gap between the paper feeding roller (3) at the paper feeding roller opening (22) and the paper feeding roller opening (22) is less than 50 mm.

3. The paper transmission mechanism of a sheet-fed gravure printing machine according to claim 2, characterized in that: The paper receiving roller (11) in the printing body (1) is also provided with a corresponding embossing roller (12), and the embossing roller (12) is also provided with a printing plate roller (13) and a paper feeding roller (14) correspondingly.

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